2025-08-13 / UCAC4 520-002215 / (138940) 2001 BO23
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Vitali Nevski
O-
VID
M300
BY
GPS
22:40:52
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22:42:52
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
More 1 observation found in db: sodis
Available (probably) matching predictions (click on the link to switch):
Using prediction 3d6fb4d0-ddb7-11f0-547e-a27947abed58 for map and profile fit
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Event Details
Occultation UUID [and DB] : 3d6fb4d0-ddb7-11f0-547e-a27947abed58 [observed]
Occultation Date + Time : 2025-08-13 at 22:33:28 UT +/- 0.06 min [1]
Object Designation : (138940) 2001 BO23
Orbit Class : MBA
Star Designation : GDR3 2590225167683155584
Star Coordinates (ICRF) : RA = 01 21 51.3083, DE = +13 48 08.342 [2]
Star Magnitudes : G = 13.64 mag, RP = 12.69 mag, BP = 13.66 mag
Object Magnitude : V = 19.95 mag
Estimated Magnitude Drop : 6.3 mag
Estimated Max. Duration : 0.6 sec
Object Mean Diameter : 2.1 km (src: astorb)
Speed of the shadow : 3.7 km/s
Elongation to Moon & Sun : 3° (sunlit = 75%), Sun = 117°
Cross-track uncertainty : 3.0 mas = 3 km = 1.63 path-width (1-sig)
RUWE and duplicate source : 1.4 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#49
Note : FP:true
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
(If error 404: link not valid which means no data available)
