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.
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Showing posts with label Near Earth Object. Show all posts
Showing posts with label Near Earth Object. Show all posts
Sep 26, 2018
Sep 20, 2018
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.
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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?
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.
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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?
Sep 10, 2018
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.
Accessible NEA(Object/Trajectory Details for 2018 RQ1)
Accessible NEA(Object/Trajectory Details for 2018 RQ1)
Sep 9, 2018
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.
see
Accessible NEA(Object/Trajectory Details for 2018 RQ1)
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).
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).
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?
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).
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?
Aug 10, 2018
The of Confirmation of the Asteroid the 2018 PL9
On 2018-08-07 at ~ 10:30 UTC observers with ATLAS (Asteroid Terrestrial-Impact Last Alert System) imaged a "new" asteroid. Over the next ~ 35 minutes, the ATLAS term would take three additional observations. The observations were submitted to the Minor Planet Center(MPC) in Cambridge, Massachusetts using the observer-assigned temporary designation A107TVP. This "new" asteroid was posted to the NEO Confirmation Page(NEOCP) informing observers around the world that "A107TVP" needed confirmation observations.
Asteroid Orbit diagram for 2018 PL9 [NEO(Amor)] Approximate Diameter 350 to 900 Meters 2018-08-07 10:30 UTC courtesy of NASA/JPL-Caltec https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2018PL9 |
Asteroid Orbit diagram for 2018 PL9 [NEO(Amor)] Approximate Diameter 350 to 900 Meters 2018-08-07 10:30 UTC courtesy of NASA/JPL-Caltec https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2018PL9 |
A confirmation image of the NEOCP(NEO Confirmation Page)
object A107TVP(now 2018 PL9) on 2018-08-07
from Siding Spring Observatory, Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 9 - 60 second luminance BIN2 images
taken with iTelescope.net's (T30)
By Steven M. Tilley
|
On 2018-08-08 I took and submitted three additional observations.
- (711) McDonald Observatory, Fort Davis, Texas,US
- (850) Cordell-Lorenz Observatory, Sewanee, Tennessee, US
- (E23) Arcadia,NSW, Australia.
- (F51) Pan-STARRS 1, Haleakala, Hawaii, US
- (J04) ESA Optical Ground Station, Tenerife, Canary Islands, Spain
- (L01) Višnjan Observatory, Tican, Croatia.
- (P93) Space Tracking and Communications Center, JAXA, Japan.
- (Q62) iTelescope Observatory, Siding Spring,NSW, Australia.
- (T05) ATLAS-HKO, Haleakala, Hawaii,US.
- (X31) Galileo Galilei Observatory, Oro Verde, Argentina.
- (X74) Observatório Campo dos Amarais, Brazil.
On 2018-08-10 at 15:24 UTC the MPC Issued "MPEC 2018-P46 : 2018 PL9" assigning the provisonal designations "2018 PL9" to the "new" asteroid.
Aug 6, 2018
The Asteroid 2018 KE3 [NEO(Amor)] on 2018-08-04
The Asteroid 2018 KE3 is an Amor (a Near-Earth asteroids whose orbits approach but does NOT cross Earth's orbit) with an estimated diameter of 400 M to 900 M(1312.34 Foot to 2952.76 Foot) its MOID (Minimum orbit intersection distance) is 0.213016 AU(82.9 Lunar Distance (LD))
On 2018-08-04 I was able to obtain 40-60 Second Luminance BIN2 Images on itelescope.net's (T17 TEL 0.43-m f/6.8 reflector + CCD).
I use Astrometrica to do the data reduction by way of the stack and track method. I had Astrometrica stack 4 sets(stacks) of ten images. Each image was shifted match movement of 2018 KE3.
observations of 2018 KE3 to the The Minor Planet Center(MPC) in the "new" "Astrometry Data Exchange Standard (ADES)" format [PSV -"Pipe Separated Values"]
On 2018-08-05 the MPC published "MPEC 2018-P10 : DAILY ORBIT UPDATE (2018 AUG. 5 UT)" containing my 2018-08-04 observations. of 2018 KE3.
As more observations are made(over time) of any given asteroid.---more accurate orbital elements can be computed (with lower uncertainties). Here a test with Find_Orb showing "small" improvement to the orbital elements for 2018 KE3 (before and after my 2018-08-04 2018-08-04 observations).
JPL Small-Body Databas day afer day they see this
"improvement" of orbital elements and lower uncertainties as well.
On 2018-08-04 I was able to obtain 40-60 Second Luminance BIN2 Images on itelescope.net's (T17 TEL 0.43-m f/6.8 reflector + CCD).
Asteroid Orbit diagram for 2018 KE3 [NEO(Amor)] courtesy of NASA/JPL-Caltech https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2018KE3 |
I use Astrometrica to do the data reduction by way of the stack and track method. I had Astrometrica stack 4 sets(stacks) of ten images. Each image was shifted match movement of 2018 KE3.
observations of 2018 KE3 to the The Minor Planet Center(MPC) in the "new" "Astrometry Data Exchange Standard (ADES)" format [PSV -"Pipe Separated Values"]
On 2018-08-05 the MPC published "MPEC 2018-P10 : DAILY ORBIT UPDATE (2018 AUG. 5 UT)" containing my 2018-08-04 observations. of 2018 KE3.
As more observations are made(over time) of any given asteroid.---more accurate orbital elements can be computed (with lower uncertainties). Here a test with Find_Orb showing "small" improvement to the orbital elements for 2018 KE3 (before and after my 2018-08-04 2018-08-04 observations).
"improvement" of orbital elements and lower uncertainties as well.
Screenshot of JPL's Orbital Elements for 2018 KE3 before my 2018-08-04 observations. Courtesy of NASA/JPL-Caltech https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2018KE3 |
Screenshot of JPL's Orbital Elements for 2018 KE3 after my 2018-08-04 observations. Courtesy of NASA/JPL-Caltech https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2018KE3 |
Jul 5, 2018
The asteroid 2018 MR8 [NEOCP P10I7IV] on 2018-07-04
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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