Collaborative Occultation
Resources and Archive
CORA

Occultations | Observations | Reports | Info + Credits | JOA | Admin | Login

2025-08-29 / UCAC4 448-132566 / (36882) 2000 SW155

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Ferran Casarramona O+ VID M200 ES GPS 22:52:02 22:52:55.08 22:52:55.24 22:54:02 0.040 0.040 0.16 1.7
2 show Ferran Casarramona O+ VID M200 ES GPS 22:52:02 22:52:55.64 22:52:55.72 22:54:02 0.040 0.040 0.08 0.9
3 show Daniel Antuszewicz O+ VID M200 PL NTP 22:49:09 22:50:11.379 22:50:12.360 22:51:09 0.015 0.040 0.98 10.7
4 show Deborah Smith O- VID M150 ES GPS 22:50:55 :: :: 22:54:55
5 show Patrice LE GUEN O- VID L106 FR NTP 22:50:25 :: :: 22:56:26
6 show Matthieu Conjat O- VID T400 FR GPS 22:49:15 :: :: 22:52:34
7 show Wojciech Burzynski O- VID T600 PL GPS 22:49:38 :: :: 22:50:45
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

7 observations found in db: sodis

Available (probably) matching predictions (click on the link to switch):
JPL#54 : 59e07000-ddb7-11f0-547e-940172ff8756 [db: observed]

Using prediction 59e07000-ddb7-11f0-547e-940172ff8756 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 profile fit was not successful ...








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] : 59e07000-ddb7-11f0-547e-940172ff8756 [observed]

 Occultation Date + Time   : 2025-08-29 at 22:57:31 UT +/- 0.02 min  [1]
 Object Designation        : (36882) 2000 SW155
 Orbit Class               : MBA
 Star Designation          : GDR3 4227288133359092224
 Star Coordinates (ICRF)   : RA = 20 53 05.9743, DE = -00 33 59.413  [2]
 Star Magnitudes           : G = 11.22 mag, RP = 10.56 mag, BP = 11.73 mag
 Object Magnitude          : V = 18.37 mag
 Estimated Magnitude Drop  : 7.1 mag
 Estimated Max. Duration   : 0.5 sec
 Object Mean Diameter      : 5.2 km  (src: astorb)
 Speed of the shadow       : 10.9 km/s
 Elongation to Moon & Sun  : 85° (sunlit = 38%), Sun = 153°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.27 path-width (1-sig)
 RUWE and duplicate source : 1.34 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#54
 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)