Collaborative Occultation
Resources and Archive
CORA
Occultations | Observations | Reports | Info + Credits | JOA | Admin | Login

2023-10-12 / UCAC4 459-005219 / (412) Elisabetha

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Jesús Delgado O+ CCD M280 ES GPS 00:31:25 00:33:21.50 00:33:32.00 00:35:24 0.3 0.3 10.50 84.0
2 show Oscar Canales O+ VID M200 ES GPS 00:30:09 00:32:04.30 00:32:14.54 00:34:09 0.23 0.23 10.24 81.9
3 show Fernando Campos O+ CCD M230 ES GPS 00:31:41 00:32:03.46 00:32:14.14 00:35:18 0.08 0.08 10.68 85.4
4 show joan rovira, Maria Sole O+ VID M200 ES GPS 00:29:05 00:31:39.16 00:31:47.16 00:35:05 0.16 0.16 8.00 64.0
5 show Stefano Sposetti O+ VID M200 CH GPS 00:27:15 0:30:07.77 0:30:17.6 00:32:40 0.16 0.20 9.83 78.6
6 show Andreas Schweizer O+ VID L107 CH GPS 00:28:08 00:30:05.311 00:30:16.591 00:32:09 0.275 0.275 11.28 90.2
7 show Stefan Meister O+ VID M200 CH GPS 00:29:18 00:30:03.130 00:30:14.541 00:30:55 0.053 0.053 11.41 91.3
8 show Gregor Krannich O+ VID M350 DE GPS 00:28:22 00:29:45.21 00:29:48.82 00:31:12 0.09 0.09 3.61 28.9
9 show Stefano Sposetti O- VID M420 CH GPS 00:29:30 00:31:00
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

9 observations found in db: sodis

Available (probably) matching predictions (click on the link to switch):
JPL#79 : 384d30c0-ddb4-11f0-547e-7959defccb0b [db: observed]

Using prediction 384d30c0-ddb4-11f0-547e-7959defccb0b 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:
Size = 121 x 79 km
a',b' = 60.4, 39.7 km
X0,Y0 = 2368.1, 28.8 km
Mean diameter = 98 km

From 8 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.

Map with groundtrack and observer stations

Event Details 
 Occultation UUID [and DB] : 384d30c0-ddb4-11f0-547e-7959defccb0b [observed]

 Occultation Date + Time   : 2023-10-12 at 00:32:21 UT +/- 0.01 min  [1]
 Object Designation        : (412) Elisabetha
 Orbit Class               : MBA
 Star Designation          : GDR3 3270089697180236800
 Star Coordinates (ICRF)   : RA = 03 45 26.0402, DE = +01 42 19.603  [2]
 Star Magnitudes           : G = 12.67 mag, RP = 11.92 mag, BP = 13.3 mag
 Object Magnitude          : V = 13.72 mag
 Estimated Magnitude Drop  : 1.4 mag
 Estimated Max. Duration   : 11.4 sec
 Object Mean Diameter      : 91.0 km  (src: astorb)
 Speed of the shadow       : 8.0 km/s
 Elongation to Moon & Sun  : 113° (sunlit = 7%), Sun = 140°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.12 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#79
 Note                      : FP:true

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

More Data and Informations
SiMDA | 3D Asteroid Catalogue | Johnston Archive | Star at CDS (Vizier) | JPL Small-Body Node | Minor Planet Center | Wikipedia
(If error 404: link not valid which means no data available)

Aladin Sky Atlas
Aladin Lite direct link (has Gaia overlay)