2021-02-09 / 4UC 622-013441 / (250) Bettina
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | show | Carles Schnabel | O+ | VID | M400 | ES | GPS++ | 20:59:15 | 21:01:14.38 | 21:01:25.28 | 21:03:26 | 0.18 | 0.20 | 10.90 | 113.4 |
2 | show | Jorge Juan | O+ | VID | M406 | ES | GPS++ | 21:00:36 | 21:01:13.36 | 21:01:24.48 | 21:02:02 | 0.28 | 0.36 | 11.12 | 115.6 |
2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#68 : 10cd87ba-c9c3-42bf-8ed9-1248a8095174 [db: observed] |
Using prediction 10cd87ba-c9c3-42bf-8ed9-1248a8095174 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
---|
|
Auto-Fit Result: Circular profile fit was not successful ... You can enter space separated chord numbers (example: 11 4 8) or a method like VIS to ignore all visual timings, or a time source like RAD and NTP (but not GPS). If the plot disappears, then there are less than 2 chords left (too much ignored, go back with browser). Check SiMDA for size and mass data. Check Johnston Archive for satellites. |
Sky projection (artificial light) for occ. time: 2021-02-09, 21:00 UT (JD = 2459255.375)
DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
---|---|---|---|---|---|---|---|---|---|---|
# 187 | None | 5.054 | 100°, 17° | 2.44449255436e6 | 14762.8 | 0.0° | None | 2013-07-24 | 107.0 +/- 15.0 km | 2007-02-27 |
# 1850 | 4.0 | 5.054 | 99°, 10° | 2.44449255436e6 | 14762.8 | 0.0° | None | 2017-09-21 | 110.0 +/- 5.0 km | 2017-09-21 |
Image size: 300px. Transparent image background for copy & paste
Map with groundtrack and observer stations |
---|
Event Details |
---|
Occultation UUID [and DB] : 10cd87ba-c9c3-42bf-8ed9-1248a8095174 [observed] Occultation Date + Time : 2021-02-09 at 20:56:59 UT +/- 0.02 min [1] Object Designation : (250) Bettina Orbit Class : MBA Star Designation : GDR3 0218617206919523840 Star Coordinates (ICRF) : RA = 04 01 01.8133, DE = +34 19 10.681 [2] Star Magnitudes : G = 13.7 mag, RP = 13.05 mag, BP = 14.2 mag Object Magnitude : V = 12.73 mag Estimated Magnitude Drop : 0.4 mag Estimated Max. Duration : 7.7 sec Object Mean Diameter : 80 km (src: astorb) Speed of the shadow : 10.4 km/s Elongation to Moon & Sun : 127° (sunlit = 4%), Sun = 103° Cross-track uncertainty : 3.7 mas = 6 km = 0.08 path-width (1-sig) RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#68 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0 |
More Data and Informations |
---|
(If error 404: link not valid which means no data available)
Aladin Sky Atlas |
---|
Aladin Lite direct link (has Gaia overlay) |