2023-10-14 / UCAC4 550-024925 / (17490) 1991 UC3
| # | OBS | Observer | Occ | Meth. | Instr. | CC |
TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|
| 1 |
show |
Michal Rottenborn |
O- |
VID |
M254 |
CZ |
GPS |
22:43:08 |
|
|
22:47:08 |
|
|
|
|
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] : 29970420-ddb4-11f0-547e-6232fc9df4cb [observed]
Occultation Date + Time : 2023-10-14 at 22:54:53 UT +/- 0.0 min [1]
Object Designation : (17490) 1991 UC3
Orbit Class : MBA
Star Designation : GDR3 3374210867053747328
Star Coordinates (ICRF) : RA = 06 17 25.2413, DE = +19 57 55.804 [2]
Star Magnitudes : G = 12.15 mag, RP = 11.5 mag, BP = 12.58 mag
Object Magnitude : V = 18.97 mag
Estimated Magnitude Drop : 6.8 mag
Estimated Max. Duration : 0.5 sec
Object Mean Diameter : 4.2 km (src: astorb)
Speed of the shadow : 8.4 km/s
Elongation to Moon & Sun : 110° (sunlit = 0%), Sun = 107°
Cross-track uncertainty : 0.4 mas = 0 km = 0.13 path-width (1-sig)
RUWE and duplicate source : 1.58 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#51
Note : FP:true
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
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