2023-04-01 / UCAC4 581-017721 / (259) Aletheia
| # | OBS | Observer | Occ | Meth. | Instr. | CC |
TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|
| 1 |
show |
Alberto Ossola |
O+ |
VID |
M230 |
CH |
GPS |
18:50:05 |
18:51:25.88 |
18:51:31.96 |
18:53:03 |
0.16 |
0.16 |
6.08 |
130.1 |
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
More
1 observation found in db: sodis
Available (probably) matching predictions (click on the link to switch):
| Map with groundtrack and observer stations |
|---|
| Event Details |
|
Occultation UUID [and DB] : 7fc77d30-ddb3-11f0-547e-b808e79f1a17 [observed]
Occultation Date + Time : 2023-04-01 at 18:49:15 UT +/- 0.0 min [1]
Object Designation : (259) Aletheia
Orbit Class : MBA
Star Designation : GDR3 3440959194320752896
Star Coordinates (ICRF) : RA = 05 41 50.9136, DE = +26 08 38.764 [2]
Star Magnitudes : G = 13.08 mag, RP = 12.14 mag, BP = 13.98 mag
Object Magnitude : V = 14.16 mag
Estimated Magnitude Drop : 1.4 mag
Estimated Max. Duration : 8.3 sec
Object Mean Diameter : 178.6 km (src: astorb)
Speed of the shadow : 21.4 km/s
Elongation to Moon & Sun : 56° (sunlit = 82%), Sun = 74°
Cross-track uncertainty : 1.0 mas = 2 km = 0.01 path-width (1-sig)
RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#149
Note : FP:true
Object is a Gaia mass determination target !
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
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