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Showing posts with label Close-Approach. Show all posts
Showing posts with label Close-Approach. Show all posts

Jan 14, 2019

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
    • "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
  • 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)

Oct 1, 2018

September 2018 In NEO News in Review


The Japanese Space Agency,JAXA,  successfully landed two small robotic rovers on the asteroid Ryugu.

JPL Close Approach Data for September 2018  Distance Nominal <  1  Lunar Distance
Object Close-Approach (CA) Date
CA Distance Nominal 
(LD | au)
CA Distance Minimum 
 (LD | au)
H (mag) Estimated Diameter
2018 SM 2018-Sep-15  0.11 | 0.00028 0.11 | 0.00028 29.4 3.5 m -  7.9 m
2018 RZ5 2018-Sep-12 0.13 | 0.00033 0.13 | 0.00033 29.7 3.1 m -  6.9 m
2018 SD2 2018-Sep-25 0.23 | 0.00059 0.23 | 0.00058 28.6 5.0 m -   11 m
2018 RS 2018-Sep-05  0.28 | 0.00071 0.27 | 0.00071 29.5 3.4 m -  7.6 m
2018 RJ3 2018-Sep-07  0.44 | 0.00112 0.43 | 0.00112 27.8 7.2 m -   16 m
2018 RW 2018-Sep-08  0.44 | 0.00114 0.44 | 0.00114 30.3 2.3 m -  5.2 m
2018 RY5 2018-Sep-12  0.47 | 0.00120 0.47 | 0.00120 26.5 13 m -   30 m
2018 RC 2018-Sep-09 0.58 | 0.00150 0.58 | 0.00150 24.9 28 m -   63 m
2018 SC 2018-Sep-18  0.70 | 0.00179 0.70 | 0.00179 27.9 6.9 m -   16 m
2018 RR1 2018-Sep-03  0.94 | 0.00243 0.94 | 0.00242 29.9 2.7 m -  6.1 m
2018 RE2 2018-Sep-06  0.99 | 0.00255 0.99 | 0.00254 28.5 5.4 m -   12 m

Objects removed from JPL's Sentry: Earth Impact Monitoring page.

Object Designation Removed (UTC)
2018 RB7 9/29/2018 15:26
2018 RJ7 9/22/2018 16:11
2018 RP5 9/16/2018 15:06
2018 RQ1 9/16/2018 15:00
2018 RH3 9/15/2018 16:06
2018 RT3 9/15/2018 16:04
2018 RE5 9/14/2018 15:18
2018 PY7 9/12/2018 15:02
2018 RP 9/09/2018 15:07
2018 MC7 9/07/2018 14:50
2018 RC 9/06/2018 15:04
2018 QJ1 9/03/2018 14:43

Highlights of My Work for September 2018   

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

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 2018-09-10 
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



Object I observed in September 2018 
Designation Classification MPC Code Telescope Date of  observations Number of  observations
2046 Main Belt Q62 T17 9/2/2018 3
61324 Main Belt Q62 T31 9/1/2018 3
61324 Main Belt Q62 T31 9/1/2018 3
61417 Main Belt Q62 T31 9/1/2018 3
61417 Main Belt Q62 T31 9/1/2018 3
71460 Main Belt Q62 T31 9/1/2018 3
71460 Main Belt Q62 T31 9/1/2018 3
73540 Main Belt Q62 T31 9/1/2018 3
73540 Main Belt Q62 T31 9/1/2018 3
80076 Main Belt H06 T11 9/14/2018 3
83105 Main Belt Q62 T31 9/1/2018 3
84966 Main Belt Q62 T31 9/8/2018 3
128837 Main Belt Q62 T31 9/8/2018 3
157941 Main Belt Q62 T31 9/1/2018 3
173394 Main Belt Q62 T31 9/1/2018 3
173394 Main Belt Q62 T31 9/1/2018 3
197120 Main Belt Q62 T31 9/1/2018 3
209101 Main Belt Q62 T31 9/1/2018 3
231098 Main Belt Q62 T17 9/2/2018 3
253061 Main Belt Q62 T31 9/1/2018 3
331431 Main Belt Q62 T31 9/8/2018 3
523788 NEO(Apollo) Q62 T17 9/30/2018 3
1998 SD9 NEO(Aten) H06 t11 9/1/2018 3
2018 RB NEO(Apollo, PHA) Q62 T31 9/1/2018 3
2018 RB NEO(Apollo, PHA) Q62 T31 9/1/2018 3
2018 RB NEO(Apollo, PHA) Q62 T17 9/2/2018 3
2018 RP8 NEO(Aten) H06 T21 9/17/2018 4
2018 RQ1 NEO(Aten) Q62 T31 9/8/2018 3
2018 RQ1 NEO(Aten) Q62 T30 9/9/2018 3
2018 RQ1 NEO(Aten) H06 T11 9/10/2018 3
2018 RQ1 NEO(Aten) U69 T24 9/10/2018 3
21P/Giacobini-Zinner Comet H06 T11 9/14/2018 3
46P/Wirtanen Comet Q62 T17 9/22/2018 4
Total 101

Jul 5, 2018

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)
.

May 29, 2018

Re-Observing 2015 FP118 Another Look Almost Three Years later

When I am looking objects to observer, I try to find something within the capabilities of the telescope, interesting, and 'needing" observation. To these ends I check following lists:
On 2018-05-28 I saw  that 2015 FP118 was on both the Arecibo and Goldstone lists, needing astrometry,  and it was within the capabilities of iTelescope.net's (T27 TEL 0.70-m f/6.6 reflector + CCD) so I went for it. As I was create a directory so I could downloading the .FITS(Flexible Image Transport System) files I found out that I observed 2015 FP118  for  19.6 min on  2015-06-06.

The NEO 2015 FP118 on 2018-05-28 from
Siding Spring Observatory, Coonabarabran, NSW, Australia. (MPC Q62)
a stack of 45 - 60 second luminance BIN2 images
taken with iTelescope.net's (T27 TEL 0.70-m f/6.6 reflector + CCD)
By Steven M. Tilley

The NEO 2015 FP118 on 2015-06-06 from
 Siding Spring Observatory, Coonabarabran, NSW, Australia. (MPC Q62)
 a stack of 22 - 60 second luminance BIN2 images
taken with iTelescope.net's (T27 TEL 0.70-m f/6.6 reflector + CCD)
By Steven M. Tilley
 Background
(as of 2018-05-29)
  • Object: 2015 FP118
  • Orbit Type: Apollo [NEO, PHA]
  • Approximate Diameter: 370 m - 820 m(1213.911 feet to 2690.289 feet) (Absolute Magnitude: H= 19.3)
  • On the Sentry Risk Table: NO( Removed 2015-04-02 15:53:35)
  • On the NEODyS CLOMON2 risk page: NO 
  • Discovery observation was made on: 2015 03 21.57498
  • Discovery observation was made by Pan-STARRS 1, Haleakala (MPC Code F51) The Discovery M.P.E.C.:MPEC 2015-F132: 2015 FP118
  • Last Observation (publish): 2018 05 28.56107 (at iTelescope Observatory, Siding Spring, Australia (MPC Code Q62) )
  • Data-Arc Span (publish): 1164 days (3.19 yr) 
  • Number of Optical Observations(published):133
  • Observatories Reporting (Published) Observations(MPC Code):
    • (204) Schiaparelli Observatory,Italy. 
    • (290) Mt. Graham-VATT,US/Arizona.
    • (291) LPL/Spacewatch II,US/Arizona. 
    • (568) Mauna Kea, US/Hawaii.
    • (691) Steward Observatory, Kitt Peak - Spacewatch US/Arizona.
    • (703) Catalina Sky Survey, US/Arizona.
    • (711) McDonald Observatory, Fort Davis, US/Texas.
    • (807) Cerro Tololo Observatory, La Serena, Chile.
    • (926) Tenagra II, US/Arizona.
    • (D29) Purple Mountain Observatory, XuYi Station 
    • (F51) Pan-STARRS 1, Haleakala US/Hawaii. 
    • (G96) Mt. Lemmon Survey, US/Arizona.
    • (Q62) iTelescope Observatory, Siding Spring
  • Perihelion Distance 0.9541884017671265 (AU)
  • Aphelion Distance: 3.28765938878308 (AU)
  • Earth MOID (Earth center to NEO center): 0.029858 AU ((11.62 LD)), ( 701.09 Earth radii) or 2,775,474.494 miles ( 4,466,693.22 ( KM))[If the Earth was the size of a Basketball this would be 276.261 Feet(84.204 Meters)]
  • Next Close-Approach to Earth: Will safely pass Earth on 2018-Sep-03:
    • Minimum Distance(Earth center to NEO center) of 0.0314378825351047 (AU) (12.235  (LD)),  (738.195 Earth radii) or  2,922,333.75 miles ( 4,703,040.286 (KM)) 
    • Nominal Distance(Earth center to NEO center) of   0.031438612821003 (AU) (12.235 (LD)), (738.212 Earth radii) or  2,922,401.634  miles (4,703,149.536 (KM))
    • Maximum Distance(Earth center to NEO center) of  0.0314393431490244 (AU) (12.235 (LD)), (738.229 Earth radii) or  2,922,469.522 miles (4,703,258.791 (KM))
  • Goldstone Asteroid Schedule: Yes 2018 Sep (Needs Astrometry: Yes Needs Physical Observations: Yes)
  • On the Arecibo Asteroid Schedule:  YES,  Dates 2018 Aug (Request Optical Astrometry: YES , Request Optical  Lightcurve:YES, Request Optical Characterization YES)