2024-12-22 / UCAC4 435-036318 / (74789) 1999 SY5
| # | OBS | Observer | Occ | Meth. | Instr. | CC |
TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|
| 1 |
show |
Deborah Smith |
O- |
CCD |
M280 |
ES |
NTP |
03:55:42 |
|
|
03:59:42 |
|
|
|
|
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] : c6f96ea0-ddb5-11f0-547e-ddebb7fd1eb4 [observed]
Occultation Date + Time : 2024-12-22 at 03:55:21 UT +/- 0.01 min [1]
Object Designation : (74789) 1999 SY5
Orbit Class : MBA
Star Designation : GDR3 3060600365220976256
Star Coordinates (ICRF) : RA = 07 27 45.3566, DE = -03 10 15.794 [2]
Star Magnitudes : G = 13.17 mag, RP = 12.54 mag, BP = 13.64 mag
Object Magnitude : V = 16.22 mag
Estimated Magnitude Drop : 3.1 mag
Estimated Max. Duration : 0.5 sec
Object Mean Diameter : 4.6 km (src: astorb)
Speed of the shadow : 9.6 km/s
Elongation to Moon & Sun : 62° (sunlit = 57%), Sun = 146°
Cross-track uncertainty : 2.7 mas = 1 km = 0.37 path-width (1-sig)
RUWE and duplicate source : 1.02 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#52
Note : FP:true
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
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