Cora»Occultation

2025-08-14 / UCAC4 345-200484 / (224) Oceana

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Ferran Casarramona	O+	VID	M200	ES	GPS	01:42:01	01:43:28.54	01:43:33.82	01:45:02	0.810	0.810	5.28	56.0
2	show	Deborah Smith, Eric Smith	O+	VID	M150	ES	GPS	01:41:34	01:43:32.085	01:43:38.286	01:45:34	0.919	0.919	6.20	65.7
3	show	Deborah Smith	O+	VID	M300	ES	GPS	01:41:36	01:43:32.650	01:43:39.252	01:45:36	0.939	0.939	6.60	70.0

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#89 : 3d20d180-ddb7-11f0-547e-ca70be99c1c2 [db: observed]

Using prediction 3d20d180-ddb7-11f0-547e-ca70be99c1c2 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:
Ellipse profile fit was not successful. Trying circular fit.

Circular diameter = 71 km

From 3 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] : 3d20d180-ddb7-11f0-547e-ca70be99c1c2 [observed] Occultation Date + Time : 2025-08-14 at 01:48:15 UT +/- 0.01 min [1] Object Designation : (224) Oceana Orbit Class : MBA Star Designation : GDR3 6829259723063035008 Star Coordinates (ICRF) : RA = 21 22 33.9302, DE = -21 07 35.279 [2] Star Magnitudes : G = 13.42 mag, RP = 12.55 mag, BP = 14.22 mag Object Magnitude : V = 11.98 mag Estimated Magnitude Drop : 0.3 mag Estimated Max. Duration : 5.9 sec Object Mean Diameter : 61.8 km (src: astorb) Speed of the shadow : 10.6 km/s Elongation to Moon & Sun : 67° (sunlit = 74%), Sun = 173° Cross-track uncertainty : 2.7 mas = 3 km = 0.05 path-width (1-sig) RUWE and duplicate source : 0.99 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#89 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 3d20d180-ddb7-11f0-547e-ca70be99c1c2 [observed]

 Occultation Date + Time   : 2025-08-14 at 01:48:15 UT +/- 0.01 min  [1]
 Object Designation        : (224) Oceana
 Orbit Class               : MBA
 Star Designation          : GDR3 6829259723063035008
 Star Coordinates (ICRF)   : RA = 21 22 33.9302, DE = -21 07 35.279  [2]
 Star Magnitudes           : G = 13.42 mag, RP = 12.55 mag, BP = 14.22 mag
 Object Magnitude          : V = 11.98 mag
 Estimated Magnitude Drop  : 0.3 mag
 Estimated Max. Duration   : 5.9 sec
 Object Mean Diameter      : 61.8 km  (src: astorb)
 Speed of the shadow       : 10.6 km/s
 Elongation to Moon & Sun  : 67° (sunlit = 74%), Sun = 173°
 Cross-track uncertainty   : 2.7 mas = 3 km = 0.05 path-width (1-sig)
 RUWE and duplicate source : 0.99 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#89
 Note                      : FP:true

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

More Data and Informations

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