Cora»Occultation

2024-12-25 / UCAC4 491-151065 / (347299) 2011 OA28

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Carsten Ziolek	O+	VID	M356	CH	GPS	18:31:02	18:31:30.432	18:31:31.182	18:32:02	0.035	0.035	0.75	14.1
2	show	Carsten Ziolek	O+	VID	M356	CH	GPS	18:31:02	18:31:31.407	18:31:31.782	18:32:02	0.051	0.051	0.38	7.1
3	show	Stefano Sposetti	O-	VID	M420	CH	GPS	18:30:00			18:33:00

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

3 observations found in db: sodis

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

JPL#22 : cd865f80-ddb5-11f0-547e-f2c83f5d5b0f [db: observed]

Using prediction cd865f80-ddb5-11f0-547e-f2c83f5d5b0f for map and profile fit

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Event Details
Occultation UUID [and DB] : cd865f80-ddb5-11f0-547e-f2c83f5d5b0f [observed] Occultation Date + Time : 2024-12-25 at 18:28:48 UT +/- 0.06 min [1] Object Designation : (347299) 2011 OA28 Orbit Class : JTRO Star Designation : GDR3 2761012308826210816 Star Coordinates (ICRF) : RA = 23 22 40.6192, DE = +08 06 08.187 [2] Star Magnitudes : G = 13.07 mag, RP = 12.39 mag, BP = 13.35 mag Object Magnitude : V = 21.27 mag Estimated Magnitude Drop : 8.2 mag Estimated Max. Duration : 0.4 sec Object Mean Diameter : 6.6 km (src: astorb) Speed of the shadow : 18.8 km/s Elongation to Moon & Sun : 139° (sunlit = 25%), Sun = 80° Cross-track uncertainty : 16.3 mas = 59 km = 9.01 path-width (1-sig) RUWE and duplicate source : 4.51 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#22 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : cd865f80-ddb5-11f0-547e-f2c83f5d5b0f [observed]

 Occultation Date + Time   : 2024-12-25 at 18:28:48 UT +/- 0.06 min  [1]
 Object Designation        : (347299) 2011 OA28
 Orbit Class               : JTRO
 Star Designation          : GDR3 2761012308826210816
 Star Coordinates (ICRF)   : RA = 23 22 40.6192, DE = +08 06 08.187  [2]
 Star Magnitudes           : G = 13.07 mag, RP = 12.39 mag, BP = 13.35 mag
 Object Magnitude          : V = 21.27 mag
 Estimated Magnitude Drop  : 8.2 mag
 Estimated Max. Duration   : 0.4 sec
 Object Mean Diameter      : 6.6 km  (src: astorb)
 Speed of the shadow       : 18.8 km/s
 Elongation to Moon & Sun  : 139° (sunlit = 25%), Sun = 80°
 Cross-track uncertainty   : 16.3 mas = 59 km = 9.01 path-width (1-sig)
 RUWE and duplicate source : 4.51 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#22
 Note                      : FP:true

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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