2025-09-20 / Other J225602.22+065859.7 / (42755) 1998 ST61
| # | OBS | Observer | Occ | Meth. | Instr. | CC |
TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|
| 1 |
show |
Stefan Meister |
O+ |
VID |
M200 |
CH |
GPS |
20:24:10 |
20:24:31.854 |
20:24:32.706 |
20:24:55 |
0.012 |
0.012 |
0.85 |
10.0 |
| 2 |
show |
Andreas Schweizer |
O- |
VID |
M250 |
CH |
GPS |
20:24:04 |
:: |
:: |
20:25:04 |
|
|
|
|
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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2 observations found in db: sodis
Available (probably) matching predictions (click on the link to switch):
| Map with groundtrack and observer stations |
|---|
| Event Details |
|
Occultation UUID [and DB] : 77afd0d0-ddb7-11f0-547e-6dddeb7fadd3 [observed]
Occultation Date + Time : 2025-09-20 at 20:26:21 UT +/- 0.01 min [1]
Object Designation : (42755) 1998 ST61
Orbit Class : MBA
Star Designation : GDR3 2712028550412358912
Star Coordinates (ICRF) : RA = 22 56 02.2080, DE = +06 58 59.571 [2]
Star Magnitudes : G = 10.48 mag, RP = 10.02 mag, BP = 10.78 mag
Object Magnitude : V = 18.29 mag
Estimated Magnitude Drop : 7.8 mag
Estimated Max. Duration : 0.4 sec
Object Mean Diameter : 4.9 km (src: astorb)
Speed of the shadow : 11.8 km/s
Elongation to Moon & Sun : 167° (sunlit = 1%), Sun = 164°
Cross-track uncertainty : 1.0 mas = 1 km = 0.28 path-width (1-sig)
RUWE and duplicate source : 1.07 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#50
Note : FP:true
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
|
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