Cora»Occultation

2023-05-31 / UCAC4 308-088692 / (10172) Humphreys

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT4
1	show	Peter Delincak	O-	CCD	M400	SK	NTP	20:56:30	21:0:30.
2	show	Daniel Blazewicz	O-	CCD	M350	PL	GPS	20:57:35	20:59:52
3	show	Marcin Filipek	O-	VID	M250	PL	GPS	20:57:40	20:59:10
4	show	Anna Marciniak	O-	CCD	M350	PL	GPS	20:57:40	20:59:52

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

4 observations found in db: sodis

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

JPL#60 : a5c2d8e0-ddb3-11f0-547e-3b2f67f753c3 [db: observed]

Using prediction a5c2d8e0-ddb3-11f0-547e-3b2f67f753c3 for map and profile fit

Get observations as KML file (reduced site location resolution)

Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : a5c2d8e0-ddb3-11f0-547e-3b2f67f753c3 [observed] Occultation Date + Time : 2023-05-31 at 20:55:17 UT +/- 0.0 min [1] Object Designation : (10172) Humphreys Orbit Class : MBA Star Designation : GDR3 6041825435547326848 Star Coordinates (ICRF) : RA = 16 10 24.1753, DE = -28 34 10.540 [2] Star Magnitudes : G = 10.53 mag, RP = 9.28 mag, BP = 12.24 mag Object Magnitude : V = 17.31 mag Estimated Magnitude Drop : 6.8 mag Estimated Max. Duration : 0.6 sec Object Mean Diameter : 6.0 km (src: astorb) Speed of the shadow : 10.9 km/s Elongation to Moon & Sun : 38° (sunlit = 87%), Sun = 171° Cross-track uncertainty : 0.5 mas = 0 km = 0.10 path-width (1-sig) RUWE and duplicate source : 1.11 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#60 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : a5c2d8e0-ddb3-11f0-547e-3b2f67f753c3 [observed] Occultation Date + Time : 2023-05-31 at 20:55:17 UT +/- 0.0 min [1] Object Designation : (10172) Humphreys Orbit Class : MBA Star Designation : GDR3 6041825435547326848 Star Coordinates (ICRF) : RA = 16 10 24.1753, DE = -28 34 10.540 [2] Star Magnitudes : G = 10.53 mag, RP = 9.28 mag, BP = 12.24 mag Object Magnitude : V = 17.31 mag Estimated Magnitude Drop : 6.8 mag Estimated Max. Duration : 0.6 sec Object Mean Diameter : 6.0 km (src: astorb) Speed of the shadow : 10.9 km/s Elongation to Moon & Sun : 38° (sunlit = 87%), Sun = 171° Cross-track uncertainty : 0.5 mas = 0 km = 0.10 path-width (1-sig) RUWE and duplicate source : 1.11 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#60 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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