2025-12-09 / UCAC4 570-023558 / (194742) 2001 YN20
| # | OBS | Observer | Occ | Meth. | Instr. | CC |
TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|
| 1 |
show |
Ferran Casarramona |
O- |
VID |
M200 |
ES |
GPS |
20:57:01 |
:: |
:: |
21:00:02 |
|
|
|
|
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] : d2f1fa80-ddb8-11f0-547e-acb0e2bd2b81 [observed]
Occultation Date + Time : 2025-12-09 at 20:52:18 UT +/- 0.11 min [1]
Object Designation : (194742) 2001 YN20
Orbit Class : MBA
Star Designation : GDR3 3426192138981965568
Star Coordinates (ICRF) : RA = 06 04 13.9370, DE = +23 55 10.406 [2]
Star Magnitudes : G = 11.15 mag, RP = 10.35 mag, BP = 11.83 mag
Object Magnitude : V = 19.8 mag
Estimated Magnitude Drop : 8.7 mag
Estimated Max. Duration : 0.3 sec
Object Mean Diameter : 3.5 km (src: astorb)
Speed of the shadow : 11.9 km/s
Elongation to Moon & Sun : 53° (sunlit = 70%), Sun = 167°
Cross-track uncertainty : 24.0 mas = 41 km = 11.75 path-width (1-sig)
RUWE and duplicate source : 0.96 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#28
Note : FP:true
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
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