2023-07-08 / UCAC4 347-121072 / (7990) 1981 SN1
| # | OBS | Observer | Occ | Meth. | Instr. | CC |
TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|
| 1 |
show |
Marcin Filipek |
O- |
VID |
M400 |
PL |
GPS |
00:12:47 |
|
|
00:13:45 |
|
|
|
|
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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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] : ce223c40-ddb3-11f0-547e-2618f6f3cda7 [observed]
Occultation Date + Time : 2023-07-08 at 00:17:09 UT +/- 0.0 min [1]
Object Designation : (7990) 1981 SN1
Orbit Class : MBA
Star Designation : GDR3 4071057839093714048
Star Coordinates (ICRF) : RA = 17 56 09.6653, DE = -20 42 59.321 [2]
Star Magnitudes : G = 13.22 mag, RP = 12.21 mag, BP = 14.28 mag
Object Magnitude : V = 18.28 mag
Estimated Magnitude Drop : 5.1 mag
Estimated Max. Duration : 0.4 sec
Object Mean Diameter : 5.3 km (src: astorb)
Speed of the shadow : 11.9 km/s
Elongation to Moon & Sun : 80° (sunlit = 73%), Sun = 163°
Cross-track uncertainty : 0.3 mas = 0 km = 0.08 path-width (1-sig)
RUWE and duplicate source : 0.95 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#55
Note : FP:true
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
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