2023-07-11 / UCAC4 380-132065 / (856) Backlunda
| # | OBS | Observer | Occ | Meth. | Instr. | CC |
TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|
| 1 |
show |
Peter Delincak |
O- |
VID |
M400 |
SK |
NTP |
20:08:34 |
|
|
20:12:43 |
|
|
|
|
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] : d84dfec0-ddb3-11f0-547e-eac23e9f1c62 [observed]
Occultation Date + Time : 2023-07-11 at 20:11:56 UT +/- 0.0 min [1]
Object Designation : (856) Backlunda
Orbit Class : MBA
Star Designation : GDR3 4102090798798567680
Star Coordinates (ICRF) : RA = 18 50 53.7918, DE = -14 06 51.848 [2]
Star Magnitudes : G = 13.77 mag, RP = 13.08 mag, BP = 14.29 mag
Object Magnitude : V = 13.89 mag
Estimated Magnitude Drop : 0.8 mag
Estimated Max. Duration : 4.6 sec
Object Mean Diameter : 52.0 km (src: astorb)
Speed of the shadow : 11.3 km/s
Elongation to Moon & Sun : 118° (sunlit = 31%), Sun = 169°
Cross-track uncertainty : 0.4 mas = 0 km = 0.01 path-width (1-sig)
RUWE and duplicate source : 1.73 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#112
Note : FP:true
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
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