2024-08-19 / UCAC4 470-135360 / (40221) 1998 SG136
| # | OBS | Observer | Occ | Meth. | Instr. | CC |
TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|
| 1 |
show |
Deborah Smith |
O- |
CCD |
M235 |
ES |
NTP |
02:02:43 |
|
|
02:06:42 |
|
|
|
|
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] : 421d7050-ddb5-11f0-547e-aecad2ffa37d [observed]
Occultation Date + Time : 2024-08-19 at 02:09:39 UT +/- 0.01 min [1]
Object Designation : (40221) 1998 SG136
Orbit Class : MBA
Star Designation : GDR3 2656996202440390400
Star Coordinates (ICRF) : RA = 22 53 33.5593, DE = +03 56 22.745 [2]
Star Magnitudes : G = 12.16 mag, RP = 11.61 mag, BP = 12.54 mag
Object Magnitude : V = 17.94 mag
Estimated Magnitude Drop : 5.8 mag
Estimated Max. Duration : 0.5 sec
Object Mean Diameter : 5.7 km (src: astorb)
Speed of the shadow : 10.7 km/s
Elongation to Moon & Sun : 32° (sunlit = 99%), Sun = 158°
Cross-track uncertainty : 0.3 mas = 0 km = 0.07 path-width (1-sig)
RUWE and duplicate source : 1.08 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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