2025-10-01 / UCAC4 559-006226 / (69917) 1998 TF
| # | OBS | Observer | Occ | Meth. | Instr. | CC |
TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|
| 1 |
show |
Anna Marciniak |
O+ |
CCD |
M400 |
PL |
GPS |
20:22:08 |
20:23:07.83 |
20:23:08.92 |
20:24:12 |
0.150 |
0.150 |
1.09 |
6.1 |
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] : 9b59cd00-ddb8-11f0-547e-1792d75cfe55 [observed]
Occultation Date + Time : 2025-10-01 at 20:08:11 UT +/- 0.01 min [1]
Object Designation : (69917) 1998 TF
Orbit Class : MBA
Star Designation : GDR3 0108802417940829696
Star Coordinates (ICRF) : RA = 03 09 23.8583, DE = +21 42 54.325 [2]
Star Magnitudes : G = 12.96 mag, RP = 12.28 mag, BP = 13.48 mag
Object Magnitude : V = 17.86 mag
Estimated Magnitude Drop : 4.9 mag
Estimated Max. Duration : 1.2 sec
Object Mean Diameter : 7.0 km (src: astorb)
Speed of the shadow : 5.6 km/s
Elongation to Moon & Sun : 111° (sunlit = 68%), Sun = 138°
Cross-track uncertainty : 1.0 mas = 1 km = 0.20 path-width (1-sig)
RUWE and duplicate source : 0.95 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#57
Note : FP:true
Object is a "TNOs are cool" target !
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
|
(If error 404: link not valid which means no data available)
Loading sky atlas…
Aladin Lite direct link (has Gaia overlay)
