2022-03-21 / 4UC 573-040465 / (778) Theobalda
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Jean-Francois Pittet | O+ | CCD | M254 | DE | GPS++ | 18:48:50 | 18:50:44.10 | 18:50:49.13 | 18:52:48 | 0.23 | 0.30 | 5.03 | 55.3 |
2 | show | Gregor Krannich | O+ | CCD | M350 | DE | GPS++ | 18:49:31 | 18:50:37.96 | 18:50:43.35 | 18:52:11 | 0.18 | 0.18 | 5.39 | 59.3 |
2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#57 : 75034fe4-8923-4e86-b885-5a446274db13 [db: observed] |
Using prediction 75034fe4-8923-4e86-b885-5a446274db13 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = -1289.5, 21.1 km Circular diameter = 64 km From 2 chords (CCD) 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. |
Map with groundtrack and observer stations |
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Event Details |
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Occultation UUID [and DB] : 75034fe4-8923-4e86-b885-5a446274db13 [observed] Occultation Date + Time : 2022-03-21 at 18:53:09 UT +/- 0.03 min [1] Object Designation : (778) Theobalda Orbit Class : MBA Star Designation : GDR3 0866940527383596032 Star Coordinates (ICRF) : RA = 07 29 30.0826, DE = +24 29 46.550 [2] Star Magnitudes : G = 14.62 mag, RP = 14.16 mag, BP = 14.93 mag Object Magnitude : V = 14.4 mag Estimated Magnitude Drop : 0.7 mag Estimated Max. Duration : 5.8 sec Object Mean Diameter : 64 km (src: astorb) Speed of the shadow : 11.0 km/s Elongation to Moon & Sun : 116° (sunlit = 86%), Sun = 109° Cross-track uncertainty : 4.0 mas = 5 km = 0.09 path-width (1-sig) RUWE and duplicate source : 1.23 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#57 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0 |
More Data and Informations |
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(If error 404: link not valid which means no data available)
Aladin Sky Atlas |
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Aladin Lite direct link (has Gaia overlay) |