2026-10-21 / UCAC4 628-030104 / (400) Ducrosa
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
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Deborah Smith
O-
VID
M300
ES
GPS
04:15:03
::
::
04:17:03
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
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1 observation found in db: sodis
Available (probably) matching predictions (click on the link to switch):
Using prediction 6e38c170-d9b4-11f1-43f3-73acefd6cded for map and profile fit
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Event Details
Occultation UUID [and DB] : 6e38c170-d9b4-11f1-43f3-73acefd6cded [observed]
Occultation Date + Time : 2026-10-21 at 04:15:27 UT +/- 0.05 min [1]
Object Designation : (400) Ducrosa
Orbit Class : MBA
Star Designation : GDR3 3453495825899640448
Star Coordinates (ICRF) : RA = 06 02 13.6715, DE = +35 32 59.868 [2]
Star Magnitudes : G = 15.6 mag, RP = 14.79 mag, BP = 16.24 mag
Object Magnitude : V = 16.41 mag
Estimated Magnitude Drop : 1.2 mag
Estimated Max. Duration : 8.2 sec
Object Mean Diameter : 33.7 km (src: astorb)
Speed of the shadow : 4.1 km/s
Elongation to Moon & Sun : 124° (sunlit = 73%), Sun = 117°
Cross-track uncertainty : 0.4 mas = 0 km = 0.02 path-width (1-sig)
RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL85
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)