2025-10-03 / UCAC4 369-175777 / (6857) Castelli
# OBS Observer Occ Meth. Instr. CC
TSRC UT1 UT2 UT3 UT4 UT2E UT3E Dur. Chrd
1
show Carsten Ziolek
O-
VID
M356
CH
GPS
21:00:19
::
::
21:01:19
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 80869530-ddb8-11f0-547e-02547f2d36b3 for map and profile fit
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Event Details
Occultation UUID [and DB] : 80869530-ddb8-11f0-547e-02547f2d36b3 [observed]
Occultation Date + Time : 2025-10-03 at 20:54:12 UT +/- 0.0 min [1]
Object Designation : (6857) Castelli
Orbit Class : MBA
Star Designation : GDR3 6877079712842870528
Star Coordinates (ICRF) : RA = 20 03 22.2145, DE = -16 18 38.141 [2]
Star Magnitudes : G = 12.12 mag, RP = 11.12 mag, BP = 13.14 mag
Object Magnitude : V = 18.06 mag
Estimated Magnitude Drop : 6.0 mag
Estimated Max. Duration : 0.4 sec
Object Mean Diameter : 4.8 km (src: astorb)
Speed of the shadow : 11.1 km/s
Elongation to Moon & Sun : 28° (sunlit = 86%), Sun = 109°
Cross-track uncertainty : 1.0 mas = 1 km = 0.24 path-width (1-sig)
RUWE and duplicate source : 1.05 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#65
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)
