Cora»Occultation

2022-12-26 / TYC 1217-01435-1 / (31624) 1999 GP20

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	William Stewart	O-	VID	M279	GB	GPS	22:33:12			22:35:37

UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

1 observation found in db: sodis

Available (probably) matching predictions (click on the link to switch):

JPL#57 : 3e7ded50-ddb3-11f0-547e-7856f7d7dc3c [db: observed]

Using prediction 3e7ded50-ddb3-11f0-547e-7856f7d7dc3c for map and profile fit

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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : 3e7ded50-ddb3-11f0-547e-7856f7d7dc3c [observed] Occultation Date + Time : 2022-12-26 at 22:12:27 UT +/- 0.02 min [1] Object Designation : (31624) 1999 GP20 Orbit Class : MBA Star Designation : GDR3 0099088163989435648 Star Coordinates (ICRF) : RA = 02 15 49.6167, DE = +19 39 46.981 [2] Star Magnitudes : G = 10.16 mag, RP = 9.64 mag, BP = 10.51 mag Object Magnitude : V = 17.76 mag Estimated Magnitude Drop : 7.6 mag Estimated Max. Duration : 3.4 sec Object Mean Diameter : 6.9 km (src: astorb) Speed of the shadow : 2.1 km/s Elongation to Moon & Sun : 75° (sunlit = 17%), Sun = 123° Cross-track uncertainty : 0.3 mas = 0 km = 0.06 path-width (1-sig) RUWE and duplicate source : 1.35 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#57 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : 3e7ded50-ddb3-11f0-547e-7856f7d7dc3c [observed] Occultation Date + Time : 2022-12-26 at 22:12:27 UT +/- 0.02 min [1] Object Designation : (31624) 1999 GP20 Orbit Class : MBA Star Designation : GDR3 0099088163989435648 Star Coordinates (ICRF) : RA = 02 15 49.6167, DE = +19 39 46.981 [2] Star Magnitudes : G = 10.16 mag, RP = 9.64 mag, BP = 10.51 mag Object Magnitude : V = 17.76 mag Estimated Magnitude Drop : 7.6 mag Estimated Max. Duration : 3.4 sec Object Mean Diameter : 6.9 km (src: astorb) Speed of the shadow : 2.1 km/s Elongation to Moon & Sun : 75° (sunlit = 17%), Sun = 123° Cross-track uncertainty : 0.3 mas = 0 km = 0.06 path-width (1-sig) RUWE and duplicate source : 1.35 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#57 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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