2025-12-10 / UCAC4 652-012872 / (73972) 1998 BA18
| # | OBS | Observer | Occ | Meth. | Instr. | CC |
TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|
| 1 |
show |
Michael OConnell |
O- |
VID |
M350 |
ES |
NTP |
20:38:39 |
:: |
:: |
20:40:39 |
|
|
|
|
| 2 |
show |
Manuel Alfonso Coya Lozano, Juan Collada Barcena |
O- |
CCD |
M356 |
ES |
GPS |
20:38:25 |
:: |
:: |
20:40:25 |
|
|
|
|
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 |
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Occultation UUID [and DB] : d57d3940-ddb8-11f0-547e-dfa0ffffd5e9 [observed]
Occultation Date + Time : 2025-12-10 at 20:37:43 UT +/- 0.01 min [1]
Object Designation : (73972) 1998 BA18
Orbit Class : MBA
Star Designation : GDR3 0239056440883593472
Star Coordinates (ICRF) : RA = 03 07 31.6731, DE = +40 12 41.266 [2]
Star Magnitudes : G = 14.44 mag, RP = 13.69 mag, BP = 15.06 mag
Object Magnitude : V = 18.8 mag
Estimated Magnitude Drop : 4.4 mag
Estimated Max. Duration : 0.5 sec
Object Mean Diameter : 5.9 km (src: astorb)
Speed of the shadow : 11.8 km/s
Elongation to Moon & Sun : 100° (sunlit = 60%), Sun = 149°
Cross-track uncertainty : 0.7 mas = 1 km = 0.20 path-width (1-sig)
RUWE and duplicate source : 1.08 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#53
Note : FP:true
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
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