Cora»Occultation

2026-09-12 / UCAC4 598-020697 / (907) Rhoda

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Michael OConnell	O+	VID	M350	ES	NTP	03:36:11	03:37:10.26	03:37:14.0	03:38:11	0.120	0.200	3.74	79.7
2	show	Henk de Groot	O+	VID	M350	NL	GPS	03:37:21	03:38:21.56	03:38:23.2	03:39:25	0.100	0.400	1.64	34.9

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

2 observations found in db: sodis

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

JPL84 : 15465b80-d9b0-11f1-43f3-106afec57ee6 [db: observed]

Using prediction 15465b80-d9b0-11f1-43f3-106afec57ee6 for map and profile fit

Get observations as KML file (reduced site location resolution)

Ellipse and circular profile fits to the timings (chords)

Auto-Fit Result:
X0,Y0 = 1452.7, 25.3 km
Circular diameter = 81 km

From 2 chords (VID)

You can enter space separated chord numbers (example: 11 4 8) or a method like VIS to ignore all visual timings, or a time source like RAD and NTP (but not GPS).
If the plot disappears, then there are less than 2 chords left (too much ignored, go back with browser).

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Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : 15465b80-d9b0-11f1-43f3-106afec57ee6 [observed] Occultation Date + Time : 2026-09-12 at 03:38:46 UT +/- 0.0 min [1] Object Designation : (907) Rhoda Orbit Class : MBA Star Designation : GDR3 3445741180844287616 Star Coordinates (ICRF) : RA = 05 27 42.9627, DE = +29 29 42.653 [2] Star Magnitudes : G = 15.05 mag, RP = 14.26 mag, BP = 15.65 mag Object Magnitude : V = 15.0 mag Estimated Magnitude Drop : 0.7 mag Estimated Max. Duration : 3.0 sec Object Mean Diameter : 62.7 km (src: astorb) Speed of the shadow : 21.3 km/s Elongation to Moon & Sun : 99° (sunlit = 1%), Sun = 86° Cross-track uncertainty : 1.1 mas = 1 km = 0.03 path-width (1-sig) RUWE and duplicate source : 1.23 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL84 Note : FP:true Object is a Gaia mass determination target ! [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 15465b80-d9b0-11f1-43f3-106afec57ee6 [observed]

 Occultation Date + Time   : 2026-09-12 at 03:38:46 UT +/- 0.0 min  [1]
 Object Designation        : (907) Rhoda
 Orbit Class               : MBA
 Star Designation          : GDR3 3445741180844287616
 Star Coordinates (ICRF)   : RA = 05 27 42.9627, DE = +29 29 42.653  [2]
 Star Magnitudes           : G = 15.05 mag, RP = 14.26 mag, BP = 15.65 mag
 Object Magnitude          : V = 15.0 mag
 Estimated Magnitude Drop  : 0.7 mag
 Estimated Max. Duration   : 3.0 sec
 Object Mean Diameter      : 62.7 km  (src: astorb)
 Speed of the shadow       : 21.3 km/s
 Elongation to Moon & Sun  : 99° (sunlit = 1%), Sun = 86°
 Cross-track uncertainty   : 1.1 mas = 1 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 1.23 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL84
 Note                      : FP:true

 Object is a Gaia mass determination target !

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

More Data and Informations

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