Collaborative Occultation Resources and Archive (CORA)


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

2025-02-08 / UCAC4 510-022619 / (3428) Roberts

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Daniel Blazewicz O- VID M350 PL GPS 22:36:17 22:39:40
2 show Leszek Benedyktowicz O- VID M200 PL GPS 22:36:46 22:38:41
3 show Marcin Filipek O- VID M250 PL GPS 22:37:20 22:38:20
4 show Anna Marciniak O- CCD M400 PL GPS 22:38:13 22:40:20
5 show Anna Marciniak O- CCD M350 PL GPS 22:38:32 22:43:36
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

5 observations found in db: sodis

Available (probably) matching predictions (click on the link to switch):
JPL#54 : 56f00780-8943-11ef-78cd-8b4472ef4777 [db: asteroids]

Using prediction 56f00780-8943-11ef-78cd-8b4472ef4777 for map and profile fit

Get observations as KML file (reduced site location resolution)


Map with groundtrack and observer stations

Occ by (3428) Roberts on 2025-02-08

Unavailable
100 km

Event Details
 Occultation UUID [and DB] : 56f00780-8943-11ef-78cd-8b4472ef4777 [asteroids]

 Occultation Date + Time   : 2025-02-08 at 22:40:56 UT +/- 0.01 min  [1]
 Object Designation        : (3428) Roberts
 Orbit Class               : MBA
 Star Designation          : GDR3 3331674850985406336
 Star Coordinates (ICRF)   : RA = 06 16 45.6940, DE = +11 51 51.990  [2]
 Star Magnitudes           : G = 13.62 mag, RP = 13.08 mag, BP = 13.94 mag
 Object Magnitude          : V = 16.24 mag
 Estimated Magnitude Drop  : 2.7 mag
 Estimated Max. Duration   : 3.4 sec
 Object Mean Diameter      : 11.6 km  (src: astorb)
 Speed of the shadow       : 3.5 km/s
 Elongation to Moon & Sun  : 17° (sunlit = 86%), Sun = 133°
 Cross-track uncertainty   : 1.5 mas = 1 km = 0.15 path-width (1-sig)
 RUWE and duplicate source : 12.27 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#54

 
 [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)