2025-09-25 / UCAC4 540-006464 / (74442) 1999 CJ9
| # | OBS | Observer | Occ | Meth. | Instr. | CC |
TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|
| 1 |
show |
Michael OConnell |
O- |
VID |
M350 |
ES |
NTP |
03:21:03 |
:: |
:: |
03:23:03 |
|
|
|
|
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] : 75528a70-ddb8-11f0-547e-0eb2ffaff432 [observed]
Occultation Date + Time : 2025-09-25 at 03:22:53 UT +/- 0.08 min [1]
Object Designation : (74442) 1999 CJ9
Orbit Class : MBA
Star Designation : GDR3 0055851862092255360
Star Coordinates (ICRF) : RA = 03 23 01.6548, DE = +17 55 50.581 [2]
Star Magnitudes : G = 13.49 mag, RP = 13.01 mag, BP = 13.81 mag
Object Magnitude : V = 19.91 mag
Estimated Magnitude Drop : 6.4 mag
Estimated Max. Duration : 1.7 sec
Object Mean Diameter : 4.0 km (src: astorb)
Speed of the shadow : 2.4 km/s
Elongation to Moon & Sun : 165° (sunlit = 10%), Sun = 129°
Cross-track uncertainty : 2.0 mas = 3 km = 0.88 path-width (1-sig)
RUWE and duplicate source : 1.1 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#47
Note : FP:true
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
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