2023-03-29 / UCAC4 607-025282 / (19521) Chaos
| # | OBS | Observer | Occ | Meth. | Instr. | CC |
TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|
| 1 |
show |
Ferran Casarramona |
O+ |
VID |
M200 |
ES |
GPS |
19:58:02 |
20:04:53.00 |
20:05:22.40 |
20:12:01 |
0.3 |
0.3 |
29.40 |
294.0 |
| 2 |
show |
Wolfgang Beisker |
O- |
VID |
M540 |
PT |
GPS |
20:02:00 |
|
|
20:08:00 |
|
|
|
|
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km |
More
2 observations 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] : 5e566f20-ddb4-11f0-547e-f7bcf8ebd945 [observed]
Occultation Date + Time : 2023-03-29 at 20:00:16 UT +/- 2.28 min [1]
Object Designation : (19521) Chaos
Orbit Class : TNO
Star Designation : GDR3 3444124860094090752
Star Coordinates (ICRF) : RA = 05 53 42.3874, DE = +31 12 49.046 [2]
Star Magnitudes : G = 13.5 mag, RP = 12.89 mag, BP = 13.91 mag
Object Magnitude : V = 20.97 mag
Estimated Magnitude Drop : 7.5 mag
Estimated Max. Duration : 40.8 sec
Object Mean Diameter : 406.9 km (src: astorb)
Speed of the shadow : 10.0 km/s
Elongation to Moon & Sun : 18° (sunlit = 57%), Sun = 80°
Cross-track uncertainty : 26.7 mas = 799 km = 1.96 path-width (1-sig)
RUWE and duplicate source : 2.68 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#18
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
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