Cora»Occultation

2025-11-21 / UCAC4 346-187345 / (360) Carlova

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Antoni Selva, Emili Capella	O+	VID	M500	ES	GPS	18:36:58	18:37:56.72	18:37:58.40	18:38:58	0.080	0.050	1.68	51.6
2	show	Ricard Casas	O+	CCD	M200	ES	NTP	18:37:36	18:37:58.3	18:37:59.9	18:38:36	0.300	0.300	1.60	49.1
3	show	Deborah Smith	O-	VID	M200	ES	GPS	18:36:51	::	::	18:38:51

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#93 : c4ba25a0-ddb8-11f0-547e-89b5fd3b9481 [db: observed]

Using prediction c4ba25a0-ddb8-11f0-547e-89b5fd3b9481 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 = 460.6, -57.6 km
Circular diameter = 249 km

From 2 chords (CCD,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).

Check SiMDA for size and mass data.

Check Johnston Archive for satellites.

Sky projection (artificial light) for occ. time: 2025-11-21, 18:37 UT (JD = 2461001.276)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 206	None	6.190	350°, 55°	2.444171e6	16830.3	0.0°	preliminary model	2010-04-15	not scaled	2008-08-27
# 1811	4.0	6.190	355°, 55°	2.444171e6	16830.3	0.0°	None	2017-06-19	137.0 +/- 3.0 km	2017-06-16

Q: model quality flag (0-5, 5=highest) | P: rotation period | λ,β: ecl. lon. and lat. of spin axis (J2000) | JD: initial time (epoch) | φ0: initial rotation angle for JD0

Image size: 300px. Transparent image background for copy & paste

Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : c4ba25a0-ddb8-11f0-547e-89b5fd3b9481 [observed] Occultation Date + Time : 2025-11-21 at 18:35:57 UT +/- 0.01 min [1] Object Designation : (360) Carlova Orbit Class : MBA Star Designation : GDR3 6866060372948855168 Star Coordinates (ICRF) : RA = 20 02 02.8348, DE = -20 52 42.046 [2] Star Magnitudes : G = 12.56 mag, RP = 11.63 mag, BP = 13.48 mag Object Magnitude : V = 14.51 mag Estimated Magnitude Drop : 2.1 mag Estimated Max. Duration : 3.8 sec Object Mean Diameter : 115.8 km (src: astorb) Speed of the shadow : 30.7 km/s Elongation to Moon & Sun : 43° (sunlit = 2%), Sun = 59° Cross-track uncertainty : 0.7 mas = 1 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.03 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#93 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : c4ba25a0-ddb8-11f0-547e-89b5fd3b9481 [observed]

 Occultation Date + Time   : 2025-11-21 at 18:35:57 UT +/- 0.01 min  [1]
 Object Designation        : (360) Carlova
 Orbit Class               : MBA
 Star Designation          : GDR3 6866060372948855168
 Star Coordinates (ICRF)   : RA = 20 02 02.8348, DE = -20 52 42.046  [2]
 Star Magnitudes           : G = 12.56 mag, RP = 11.63 mag, BP = 13.48 mag
 Object Magnitude          : V = 14.51 mag
 Estimated Magnitude Drop  : 2.1 mag
 Estimated Max. Duration   : 3.8 sec
 Object Mean Diameter      : 115.8 km  (src: astorb)
 Speed of the shadow       : 30.7 km/s
 Elongation to Moon & Sun  : 43° (sunlit = 2%), Sun = 59°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.03 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#93
 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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