2019-01-03 / 4UC 418-150499 / (137) Meliboea
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | E. Frappa et al | O+ | VID | M203 | FR | GPS++ | 18:27:07 | 18:29:05.83 | 18:29:08.89 | 18:31:00 | 0.06 | 0.03 | 3.06 | 131.6 |
2 | show | Alberto Ossola | O+ | VID | M230 | CH | GPS++ | 18:28:30 | 18:29:09.98 | 18:29:12.70 | 18:31:30 | 0.08 | 0.08 | 2.72 | 117.0 |
3 | show | Stefano Sposetti | O+ | VID | M200 | CH | GPS++ | 18:27:10 | 18:29:10.30 | 18:29:12.22 | 18:31:30 | 0.32 | 0.32 | 1.92 | 82.6 |
4 | show | Pascal Andre | O- | VID | M300 | FR | 18:21:00 | 18:35:00 |
4 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#130 : cb83f7e9-83ea-49df-b6fa-00d171b78326 [db: observed] |
Using prediction cb83f7e9-83ea-49df-b6fa-00d171b78326 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 136 x 83 km a',b' = 68.2, 41.3 km X0,Y0 = 771.8, 43.0 km Mean diameter = 106 km From 3 chords (VID) 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] : cb83f7e9-83ea-49df-b6fa-00d171b78326 [observed] Occultation Date + Time : 2019-01-03 at 18:27:17 UT +/- 0.01 min [1] Object Designation : (137) Meliboea Orbit Class : MBA Star Designation : GDR3 2667775470841364864 Star Coordinates (ICRF) : RA = 21 37 25.4702, DE = -06 28 08.788 [2] Star Magnitudes : G = 11.75 mag, RP = 10.96 mag, BP = 12.43 mag Object Magnitude : V = 13.73 mag Estimated Magnitude Drop : 2.1 mag Estimated Max. Duration : 3.4 sec Object Mean Diameter : 145 km (src: astorb) Speed of the shadow : 43.0 km/s Elongation to Moon & Sun : 67° (sunlit = 5%), Sun = 42° Cross-track uncertainty : 1.3 mas = 2 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.11 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#130 [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) |