2023-05-21 / UCAC4 479-055989 / (21627) Sillis
| # | OBS | Observer | Occ | Meth. | Instr. | CC |
TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|
| 1 |
show |
Javier Prat, Periko Martorell |
O- |
CCD |
M300 |
ES |
GPS |
01:06:17 |
|
|
01:12:00 |
|
|
|
|
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):
| Map with groundtrack and observer stations |
|---|
| Event Details |
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Occultation UUID [and DB] : 9a56a720-ddb3-11f0-547e-75e6fd7b2bb7 [observed]
Occultation Date + Time : 2023-05-21 at 01:12:27 UT +/- 0.0 min [1]
Object Designation : (21627) Sillis
Orbit Class : MBA
Star Designation : GDR3 1162104733097247872
Star Coordinates (ICRF) : RA = 15 26 42.6476, DE = +05 42 01.898 [2]
Star Magnitudes : G = 12.56 mag, RP = 12.04 mag, BP = 12.91 mag
Object Magnitude : V = 16.95 mag
Estimated Magnitude Drop : 4.4 mag
Estimated Max. Duration : 0.7 sec
Object Mean Diameter : 4.4 km (src: astorb)
Speed of the shadow : 6.3 km/s
Elongation to Moon & Sun : 141° (sunlit = 2%), Sun = 154°
Cross-track uncertainty : 0.3 mas = 0 km = 0.05 path-width (1-sig)
RUWE and duplicate source : 1.05 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#44
Note : FP:true
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
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