163348 (2002 NN4) Information Sheet

The asteroid 163348 (2002 NN4) has been in the news recently. It passed "under" Earth's orbit on 2020-06-03 and Earth will pass over its orbit on 2020-06-05 and the close approach will be 2020-Jun-06 03:20 (UTC).

163348 (2002 NN4)
Earth Distance: 0.034 au
Sun Distance: 1.036 au
2020-06-06 03:20 UTC
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=163348;old=0;orb=1;cov=0;log=0;cad=1#orb

Background

(as of 2020-06-04)

• Object: 163348 (2002 NN4) 

• Orbit Type: Aten  [NEO,  PHA]
• Approximate Diameter: 250 m - 570 m (820.21 feet to 1870.08) (Absolute Magnitude: H= 20.1)[ Neowise estimates 2002NN4 to be 700 meters in diameter.]

• On the Sentry Risk Table: NO  In fact is has never been listed on Sentry  for more information read  Understanding Risk Pages by Jon Giorgini

•  On the NEODyS CLOMON2 risk page: NO

• Listed on The Near-Earth Object Human Space Flight Accessible Targets Study (NHATS): NO

• Listed on Goldstone Asteroid Radar Schedule:Yes

• First(Precovery) Observation was made: 2002 07 02.44600(By Palomar Mountain/NEAT, (MPC Code 644)

• Discovery observation was made:2002 07 09.32451 (By Lincoln Laboratory ETS, New Mexico. (MPC Code 704)

• Last Observation(publish): 2016 08 28.84488 (By Castelmartini) (MPC Code 160)

• Data-Arc Span (publish): 5171 days

• Number of Optical Observations(published): 364

• Number of  Observatories Reporting (Published) Observations : 47

• Observatories Reporting (Published) Observations(MPC Code):

• (046) Kleť Observatory, Ceske Budejovice, Czech

• (104) San Marcello Pistoiese, Italy. 

• (106) Črni Vrh, Slovenia.

• (113) Drebach, Germany.

• (130) Lumezzane,  Italy.

• (151) Eschenberg Observatory, Winterthur, Switzerland.

• (160) Castelmartini, Italy.

• (176) Observatori Astronomic de Consell, Spain.

• (198) Wildberg, Germany. 

• (203) GiaGa Observatory, Italy. 

• (204) Schiaparelli Observatory, Italy. 

• (240) Herrenberg Sternwarte, Germany. 

• (246) Klet Observatory-KLENOT, Czech Republic.

• (291) LPL/Spacewatch II, US/Arizona.

• (355) Hadano, Japan. 

• (422) Loomberah,  Australia/NSW.

• (448) Desert Moon, US/New Mexico.

• (473) Remanzacco,  Italy.

• (557) Ondřejov, Czech Republic. 

• (560) Madonna di Dossobuono, Italy. 

• (568) Mauna Kea, US/Hawaii.

• (587) Sormano, Italy. 

• (595) Farra d'Isonzo, Italy.

• (611) Starkenburg  (N49.647790 E8.653100)  Germany.

• (620) Observatorio Astronomico de Mallorca, Spain.

• (644) Palomar Mountain (NEAT),US/California. 

• (649) Powell Observatory, Louisburg, US/Kansas.

• (671) Stony Ridge  

• (673) Table Mountain Observatory, Wrightwood, US/California.

• (703) Catalina Sky Survey,  US/Arizona. 

• (704) Lincoln Observatory ETS, New Mexico,  US/New Mexico. 

• (715) Las Cruces,US/New Mexico. 

• (734) Farpoint Observatory, Eskridge, US/Kansas.

• (848) Tenagra Observatory, Cottage Grove, US/Oregon.

• (926) Tenagra II, US/Arizona.

• (966) Church Stretton, UK. 

• (A16) Tentlingen, Switzerland.

• (A17) Guidestar Observatory, Weinheim, Germany.

• (A24) New Millennium Observatory, Italy

• (B38) Santa Mama,  Italy.

• (C51) WISE.

• (D29) Purple Mountain Observatory, XuYi Station,  China. 

• (F51) Pan-STARRS 1, Haleakala,US/Hawaii.

• (H45) Arkansas Sky Obs., Petit Jean Mountain South. US/Arkansas.

• (H55) Astronomical Research Observatory,  Charleston, US/Illinois.

• (J95) Great Shefford, UK

• (Z52) The Studios Observatory, Grantham, UK.

• Perihelion Distance: 0.4955781402508977(AU)

• Aphelion Distance: 1.257210521695571(AU)

• Earth MOID: 0.00693791(AU),  2.7 (LD), 162.727229457(Earth Radii), 644,919.024 (Miles), or 1,037,896.563 (KM) 

• Close-Approach to Earth: Will safely pass Earth on 2020-Jun-06 03:20 at a Nominal Distance of 0.0340470945348114 (AU), 13.25(LD), 798.56748858316973383 (Earth Radii), 3,164,875.1578(Miles), or 5,093,372.846(KM). "IF" the Earth was the Size of a Basketball the (163348) 2002 NN4 flyby would be 309.92 feet (94.46 meters) away 

See:

• JPL Small-Body Database Browser  163348 (2002 NN4)

• MPC Database (163348) = 2002 NN4

• NEODyS-2(163348) 2002NN4

• Known-(with reasonably low uncertainty)-NEO-Earth-Close-Approaches-Less-Than-10LD(Nominal_Dist)

Edited for typo

A list of 9257 Known NEO Earth Close Approaches Less-Than 10LD (Nominal_Dist) as of 2019-10-30

Here is a list of 9,257 Known NEO Earth Close Approaches Less-Than 10LD (Nominal_Dist) as of 2019-10-30.

If  the Earth was the size of a basketball  how far would the Moon [and the NEO Earth Close Approaches  be]? 
Here is a  spreadsheet  [if the Earth was the size of a Basketball -
 Radius 12.0275 CM(4.73523622 inches)]

 Data from the SBDB Close-Approach Data API https://ssd-api.jpl.nasa.gov/cad.api?dist-max=25LD&date-min=1900-01-01&date-max=2200-12-31&fullname=true&sort=date

The NEO(Aten) 2019 EA2 on on 2019-03-17

Image of the NEO(Aten) 2019 EA2 on 2019-03-17 from AstroCamp Observatory. Nerpio, Spain ( MPC I89) a stack of 20-60 Second Luminance BIN2 Images taken with iTelescope.net's (T07 TEL 0.43-m f/6.8 reflector + CCD)
By Steven M. Tilley

Image of the NEO(Aten) 2019 EA2 on 2019-03-17 from AstroCamp Observatory. Nerpio, Spain ( MPC I89) a stack of 20-60 Second Luminance BIN2 Images taken with iTelescope.net's (T07 TEL 0.43-m f/6.8 reflector + CCD)
By Steven M. Tilley

Image of the NEO(Aten) 2019 EA2 on 2019-03-17 from AstroCamp Observatory. Nerpio, Spain ( MPC I89) a stack of 20-60 Second Luminance BIN2 Images taken with iTelescope.net's (T07 TEL 0.43-m f/6.8 reflector + CCD)
By Steven M. Tilley

The NEO(Aten) 2019 EA2  was first observed by the Mt. Lemmon Survey on 2019-03-09. I has an absolute magnitude of 25.852 giving it  an estimated diameter of 18 m - 40 m. This asteroid will make a close approach of 0.8 lunar distance on 2019-Mar-22.
See :

https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2019EA2

https://newton.spacedys.com/neodys/index.php?pc=1.1.0&n=2019EA2

https://cneos.jpl.nasa.gov/sentry/details.html#?des=2019 EA2

http://www.hohmanntransfer.com/mn/19/19076_0317.htm

https://minorplanetcenter.net//mpec/K19/K19F08.html

https://cneos.jpl.nasa.gov/ca/

Observing The NEO 2019 AG7 on 2019-01-13 from Siding Spring Australia

The asteroid 2019 AG7(Classification: Aten [NEO])
[Estimated Diameter 23 m - 51 m]
on 2019-01-13
from Siding Spring Observatory,
 Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 12 - 5 second luminance BIN2 images
taken with iTelescope.net's (T30)
By Steven M. Tilley

The asteroid 2019 AG7(Classification: Aten [NEO])
[Estimated Diameter 23 m - 51 m]
on 2019-01-13
from Siding Spring Observatory,
 Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 12 - 5 second luminance BIN2 images
taken with iTelescope.net's (T30)
By Steven M. Tilley

..

The asteroid 2019 AG7(Classification: Aten [NEO])
[Estimated Diameter 23 m - 51 m]
on 2019-01-13
from Siding Spring Observatory,
 Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 12 - 5 second luminance BIN2 images
taken with iTelescope.net's (T30)
By Steven M. Tilley

Orbit diagram 2019 AG7
Earth Distance: 0.014 AU
Sun Distance: 0.988 AU
courtesy of NASA/JPL-Caltech
2019-01-13 13:25 UTC
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2019AG7

Background

(as of 2019-01-13)

• Object:2019 AG7 
• Orbit Type: Aten [NEO]
• Approximate Diameter: 23 m to 51 m (75.4593 feet to  167.323) (Absolute Magnitude: H= 25.32)
• On the Sentry Risk Table:  Yes 

•  NOTE this is NOT a prediction of an impact but rather a statement there is insufficient observational data rule out an impact -- for more information read  Understanding Risk Pages by Jon Giorgini

• Torino Scale 0

• "The likelihood of a collision is zero, or is so low as to be effectively zero. Also applies to small objects such as meteors and bodies that burn up in the atmosphere as well as infrequent meteorite falls that rarely cause damage.."

•  On the NEODyS CLOMON2 risk page: Yes
• Torino Scale:0
• First(Precovery) Observation was made: 2018 12 31.614374(By Pan-STARRS 1, Haleakala, US/Hawaii.  (MPC Code F51))
• Discovery observation was made:2019 01 09.37994 (By the Catalina Sky Survey, US/Arizona. (MPC Code 703)
• Last Observation(publish): 2019 01 12.582898 (By Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m) (MPC Code T12)
• Data-Arc Span (publish): 12 days
• Number of Optical Observations(published):54
• Observatories Reporting (Published) Observations(MPC Code): 
• (204) Schiaparelli Observatory,Italy. 
• (291) LPL/Spacewatch II, US/Arizona.  
• (474) Mount John Observatory, Lake Tekapo, New Zealand. 
• (703) Catalina Sky Survey, US/Arizona. 
• (807) Cerro Tololo Observatory, La Serena, Chile.
• (F51) Pan-STARRS 1, Haleakala  (N20.707235 W156.255910)  US/Hawaii.
• (F65) Haleakala-Faulkes Telescope North, US/Hawaii. 
• (G40) Slooh.com Canary Islands Observatory, Canary Islands (Spain).
• (I52) Steward Observatory, Mt. Lemmon Station
• (J04) ESA Optical Ground Station, Tenerife, Canary Islands (Spain). 
• (J95) Great Shefford,UK. 
• (L01) Višnjan Observatory, Tičan, Croatia.
• (T05) ATLAS-HKO, Haleakala, US/Hawaii. 
• (T12) Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m), US/Hawaii. 
• Perihelion Distance: 0.4829280277140071(AU)
• Aphelion Distance: 1.007267187900272(AU)
• Earth MOID: 0.00482722(AU),  1.879 (LD), 113.348270821(Earth Radii), 448,718.132 (Miles), or 722,141.833(KM)
• Close-Approach to Earth: Will safely pass Earth on 2019-Jan-15 at a Nominal Distance of  0.0100782635426263(AU), 3.922(LD), 236.648370166 (Earth Radii), 936,833.123(Miles), or 1,507,686.766(KM)

IF the Earth was the size of a basketball how far away would NEO Earth close approaches be?

IF the Earth was the size of a  basketball how far away would NEO Earth close approaches be? Here is a list of The 100 closest observed NEO Earth close approaches as of 2018-09-26.

Confirmation images of the NEO 2018 RP8

The NEO(Aten) 2018 RP8 (approximate diameters 320 m - 710 m [ 1049.87 foot -  2329.4 foot]) was first observed by ATLAS HKO (Asteroid Terrestrial-Impact Last Alert System)  on 2018-09-15. The observations were submitted to the Minor Planet Center(MPC) in Cambridge, Massachusetts using the observer-assigned temporary designation A108wr0. This "new" asteroid was posted to the NEO Confirmation Page(NEOCP) informing observers around the world that "A108wr0" needed confirmation observations.  In an  effort to help in the confirmation  I obtain 60-15 Second Luminance BIN2 taken using  iTelescope.net's(T21).


I use Astrometrica to do the data reduction by way of the stack and track method. I had Astrometrica stack 4 sets(stacks) of  15 images.  Each image was shifted match movement of  A108wr0.
.

Confirmation image of the NEOCP(NEO Confirmation Page)object A108wr0 (now 2018 RP8)

from Mayhill, New Mexico 

[New Mexico Skies](MPC Code H06) 

15-15 second luminance BIN2 images

 taken with iTelescope.net's (T21)

By Steven M. Tilleyn

Confirmation image of the NEOCP(NEO Confirmation Page)object A108wr0 (now 2018 RP8)
from Mayhill, New Mexico 
[New Mexico Skies](MPC Code H06) 
15-15 second luminance BIN2 images
 taken with iTelescope.net's (T21)
By Steven M. Tilleyn

Confirmation image of the NEOCP(NEO Confirmation Page)object A108wr0 (now 2018 RP8)
from Mayhill, New Mexico 
[New Mexico Skies](MPC Code H06) 
15-15 second luminance BIN2 images
 taken with iTelescope.net's (T21)
By Steven M. Tilleyn

Confirmation image of the NEOCP(NEO Confirmation Page)object A108wr0 (now 2018 RP8)
from Mayhill, New Mexico 
[New Mexico Skies](MPC Code H06) 
15-15 second luminance BIN2 images
 taken with iTelescope.net's (T21)
By Steven M. Tilleyn

Confirmation image of the NEOCP(NEO Confirmation Page)object A108wr0 (now 2018 RP8)

from Mayhill, New Mexico 

[New Mexico Skies](MPC Code H06) 

60-15 second luminance BIN2 images

 taken with iTelescope.net's (T21)

By Steven M. Tilleyn

I submitted my observations to the  Minor Planet Center(MPC).

On 2018 Sept. 8 at 21:42 UTC the MPC Issued MPEC 2018-S25 : 2018 RP8 assigning the objet the provisonal designation 2018 RP8.

How Are Minor Planets Named?

More Follow-up Observations of 2018 RQ1

The NEO(Aten) 2018 RQ1 (approximate diameters 39 m - 88 m [127.953 foot - 288.7139 foot]) was first observed by the Catalina Sky Survey on 2018-09-07. As of 2018-09-10 2018 RQ1 as a data-arc span of 72.77 hr with 44 published observations. 2018 RQ1 is listed on the NASA/JPL Sentry and NEODyS CLOMON2 risk pages.(as of 2018-09-10) In an effort to help with the improvement of the known orbit I booked imaging runs on iTelescope.net's T11 and T24 of 60-30 second luminance BIN2 images each.

I was able to obtain 20 images from T11. I use Astrometrica to do the data reduction by way of the stack and track method. I had Astrometrica stack 3 sets(stacks) of 6 images. Each image was shifted match the movement of 2018 RQ1.

An image of the NEO 2018 RQ1

on 2018-09-10

from Mayhill, New Mexico

[New Mexico Skies](MPC Code H06)

a stack of 6-30 second luminance BIN2 images

taken with iTelescope.net's (T11)

By Steven M. Tilley

An image of the NEO 2018 RQ1
on 2018-09-10 
from Mayhill, New Mexico 
[New Mexico Skies](MPC Code H06) 
a stack of 6-30 second luminance BIN2 images
taken with iTelescope.net's (T11) 
By Steven M. Tilley

An image of the NEO 2018 RQ1
on 2018-09-10 
from Mayhill, New Mexico 
[New Mexico Skies](MPC Code H06) 
a stack of 6-30 second luminance BIN2 images
taken with iTelescope.net's (T11) 
By Steven M. Tilley

I was able to obtain 49 images from T24. I use Astrometrica to do the data reduction by way of the stack and track method. I had Astrometrica stack 3 sets(stacks) of 14 images. I had work around the meridian flip.

An image of the NEO 2018 RQ1
on 2018-09-10 
from Sierra Remote Observatory, Auberry, California (MPC U69) 
a stack of 14-30 second luminance BIN2 images 
taken with iTelescope.net's (T24) 
By Steven M. Tilley

An image of the NEO 2018 RQ1
on 2018-09-10 
from Sierra Remote Observatory, Auberry, California (MPC U69) 
a stack of 14-30 second luminance BIN2 images 
taken with iTelescope.net's (T24) 
By Steven M. Tilley

An image of the NEO 2018 RQ1
on 2018-09-10 
from Sierra Remote Observatory, Auberry, California (MPC U69) 
a stack of 14-30 second luminance BIN2 images 
taken with iTelescope.net's (T24) 
By Steven M. Tilley

see
Accessible NEA(Object/Trajectory Details for 2018 RQ1)

Follow-up Observations of 2018 RQ1

The NEO(Aten) 2018 RQ1 (approximate diameters 39 m - 88 m [127.953 foot - 288.7139 foot]) was first observed by the Catalina Sky Survey on 2018-09-07.  As of 2018-09-09 2018 RQ1 as a data-arc span of 31.5 hr with 22 published observations. 2018 RQ1 is listed on the NASA/JPL Sentry and NEODyS CLOMON2 risk pages.(as of 2018-09-09) In an  effort to help with the improvement  of the known orbit I had iTelescope.net's(T30) start taking images and was able to obtain 22-30 Second Luminance BIN2. I use Astrometrica to do the data reduction by way of the stack and track method. I had Astrometrica stack 3 sets(stacks) of  7 images.  Each image was shifted match the movement of  2018 RQ1.

An image of the NEO 2018 RQ1
on 2018-09-09 from
Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 22-30 second luminance BIN2 images
taken with iTelescope.net's (T30)
by Steven M. Tilley

An image of the NEO 2018 RQ1
on 2018-09-09 from
Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 7-30 second luminance BIN2 images
taken with iTelescope.net's (T30)
by Steven M. Tilley

An image of the NEO 2018 RQ1
on 2018-09-09 from
Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 7-30 second luminance BIN2 images
taken with iTelescope.net's (T30)
by Steven M. Tilley

An image of the NEO 2018 RQ1
on 2018-09-09 from
Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 7-30 second luminance BIN2 images
taken with iTelescope.net's (T30)
by Steven M. Tilley

see
Accessible NEA(Object/Trajectory Details for 2018 RQ1)

Confirmation images of the NEO 2018 RQ1

The NEO(Aten) 2018 RQ1 (approximate diameters 39 m - 88 m [127.953 foot - 288.7139 foot]) was first observed by the Catalina Sky Survey on 2018-09-07. It was posted to the NEO Confirmation Page(NEOCP) under the observer-assigned temporary designations "ZR388AE"  In an  effort to help in the confirmation I obtain 60-30 Second Luminance BIN2 taken using  iTelescope.net's(T31).

Orbit diagram for 2018 RQ1
Earth Distance: 0.031 au
Sun Distance: 1.025 au
2018-09-08 16:25 UTC
courtesy of NASA/JPL-Caltech
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2018RQ1

Orbit diagram for 2018 RQ1
Earth Distance: 0.031 au
Sun Distance: 1.025 au
2018-09-08 16:25 UTC
courtesy of NASA/JPL-Caltech
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2018RQ1

Orbit diagram for 2018 RQ1
Earth Distance: 0.031 au
Sun Distance: 1.025 au
2018-09-08 16:25 UTC
courtesy of NASA/JPL-Caltech
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2018RQ1

I use Astrometrica to do the data reduction by way of the stack and track method. I had Astrometrica stack 3 sets(stacks) of  20 images.  Each image was shifted match movement of  2018 RQ1(ZR388AE).

A confirmation image of the NEO 2018 RQ1(ZR388AE)
on 2018-09-08 from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 20-30 second luminance BIN2 images
taken with iTelescope.net's (T31)
by Steven M. Tilley

A confirmation image of the NEO 2018 RQ1(ZR388AE)
on 2018-09-08 from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 20-30 second luminance BIN2 images
taken with iTelescope.net's (T31)
by Steven M. Tilley

A confirmation image of the NEO 2018 RQ1(ZR388AE)
on 2018-09-08 from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 20-30 second luminance BIN2 images
taken with iTelescope.net's (T31)
by Steven M. Tilley

A confirmation image of the NEO 2018 RQ1(ZR388AE)
on 2018-09-08 from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 60-30 second luminance BIN2 images
taken with iTelescope.net's (T31)
by Steven M. Tilley

I submitted my observations to the  Minor Planet Center(MPC). On 2018 Sept. 8 at 21:42 UTC the MPC Issued MPEC 2018-R63 : 2018 RQ1  assigning the objet the provisonaldesignation 2018 RQ1.

How Are Minor Planets Named?

The asteroid 2018 MR8 [NEOCP P10I7IV] on 2018-07-04

The asteroid 2018 MR8[NEOCP P10I7IV](Classification: Aten [NEO])
on 2018-07-04 from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 13-60 second luminance BIN2 images
taken with iTelescope.net's
(T17 TEL 0.43-m f/6.8 reflector + CCD)
By Steven M. Tilley

The asteroid 2018 MR8[NEOCP P10I7IV](Classification: Aten [NEO])
on 2018-07-04 from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 13-60 second luminance BIN2 images
taken with iTelescope.net's
(T17 TEL 0.43-m f/6.8 reflector + CCD)
By Steven M. Tilley

The asteroid 2018 MR8[NEOCP P10I7IV](Classification: Aten [NEO])
on 2018-07-04 from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 13-60 second luminance BIN2 images
taken with iTelescope.net's
(T17 TEL 0.43-m f/6.8 reflector + CCD)
By Steven M. Tilley

The asteroid 2018 MR8[NEOCP P10I7IV](Classification: Aten [NEO])
on 2018-07-04 from Siding Spring Observatory,
Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 13-60 second luminance BIN2 images
taken with iTelescope.net's
(T17 TEL 0.43-m f/6.8 reflector + CCD)
By Steven M. Tilley

NASA Jet Propulsion Laboratory (JPL) Orbit Diagram for
The asteroid 2018 MR8(2018-07-04 14:00)
see https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2018MR8

Background

(as of 2018-07-04)

•  Object:2018 MR8
• Orbit Type: Aten [NEO]
• Approximate Diameter: 220 m - 500 m( 721.785 feet to 1640.42 feet)(Absolute Magnitude: H= 20.376)
• On the Sentry Risk Table:  No 
• On the NEODyS CLOMON2 risk page: No 
• Discovery observation was made: 2018 06 24.57450
• Discovery observation was made by Pan-STARRS 1, Haleakala. (MPC Code F51) The Discovery M.P.E.C.:MPEC 2018-N11 : 2018 MR8
• Last Observation (publish): 2018 07 04.63335 (at  Arcadia Australia/NSW  (MPC Code E23)
• Data-Arc Span (publish): 10  days
• Number of Optical Observations(published):28
• Observatories Reporting (Published) Observations(MPC Code):
• (E23) Arcadia, Australia/NSW.
• (F51) Pan-STARRS 1, Haleakala, US/Hawaii.
• (H36) Sandlot Observatory, Scranton, US/Kansas.
• (I52) Steward Observatory, Mt. Lemmon Station, US/Arizona.
• (Q62) iTelescope Observatory, Siding Spring, Australia/NSW.
•  Perihelion Distance:0.7978047188215932(AU)
•  Aphelion Distance:1.144399062564495(AU)
• • Next Close-Approach to Earth:  Will safely pass Earth on 2018-Jul-13 :
  • Minimum Distance(Earth center to NEO center)  0.113853780794469 of (AU) ( 44.309 (LD)), or  10,583,370.104 miles ( 17,032,283.177 (KM))
  • Nominal Distance(Earth center to NEO center) of 0.115370764006667 (AU) ( 44.899 (LD)),or  10,724,382.503 miles ( 17,259,220.635 KM))  
  • Maximum Distance(Earth center to NEO center) of 0.116887744396502 (AU) ( 45.489 (LD)), ( Earth radii) or 10,865,394.64  miles (17,486,157.672 (KM))   
  
  
  Useful Links:
  

  • Space Situational Awareness(ESA) -- 2018 MR8
  • Near Earth Objects Dynamic Site--2018 MR8
  • (MPC) Observations --2018 MR8
  • JPL Orbit Diagram --2018 MR8
  • NEO Earth Close Approaches (JPL) (upcoming)
  • JPL's NEO Earth Close-Approaches (Between 1900 A.D. and 2200 A.D- limited to encounters with reasonably low uncertainty)
  • The Tracking News
  • NEO Coordination Centre 
  • Speed of Light - Space - Distance Calculator
  • Asteroid Hazards: The View from Space(MPC)
  • Don’t fear apocalyptic asteroids: you’re safer than you think
  • Understanding Risk Pages By Jon Giorgini
  • Revised asteroid scale aids understanding of impact risk
  • Near Earth, Objects Scale Helps Risk Communication
  • Dealing With the Impact Hazard: An International Project
  • The Palermo Technical Impact Hazard Scale
  • An Asteroid as Entered the Blogosphere… Should I Be Worried? A commentary by Steven M. Tilley
  • International Asteroid Warning Network
  • Impact Risk Assessment: An Introduction - Near-Earth Object Program
  • Hazardous NEO Technical Reviews
  • Frequently Asked Questions For Impact Risk Assessment 
  • How to Find an Impact Orbit for the Earth-Asteroid Collision
  • The Asteroid/Comet Impact Hazard
  • Whom should we call? Data policy for immediate impactors announcements
  • NEO Search & Follow-Up
  • NEOs' Science pages by Livia Giacomini
  • Torino Scale(JPL)
  • Find_Orb --- Orbit determination software - Project Pluto
  • Guide to Minor Body Astrometry(MPC)
  •  Asteroid - Impact Simulator (Impact Earth!) by Purdue University,
  • On-line Find_Orb
  
  
  
   

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