2021-09-24 / 4UC 382-160757 / (4050) Mebailey
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Jiri Polak | O+ | CCD | M303 | CZ | GPS++ | 23:16:16 | 23:18:22.42 | 23:18:24.02 | 23:20:16 | 0.10 | 0.10 | 1.60 | 9.6 |
| 2 | show | Michal Rottenborn | O+ | CCD | M254 | CZ | GPS++ | 23:16:16 | 23:18:22.19 | 23:18:24.29 | 23:20:16 | 0.10 | 0.10 | 2.10 | 12.6 |
| 3 | show | S. Meister et al | O- | CCD | M405 | CH | 23:18:15 | 23:19:16 | |||||||
| 4 | show | Anonymous | O- | CCD | V112 | DE | 23:16:02 | 23:23:01 |
4 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):| JPL#51 : 4d5ecacf-bb3d-4079-973b-0ff3d862d930 [db: observed] |
Using prediction 4d5ecacf-bb3d-4079-973b-0ff3d862d930 for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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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. |
| Map with groundtrack and observer stations |
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| Event Details |
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Occultation UUID [and DB] : 4d5ecacf-bb3d-4079-973b-0ff3d862d930 [observed] Occultation Date + Time : 2021-09-24 at 23:31:05 UT +/- 0.05 min [1] Object Designation : (4050) Mebailey Orbit Class : MBA Star Designation : GDR3 6843365460814843392 Star Coordinates (ICRF) : RA = 21 47 43.7684, DE = -13 42 59.319 [2] Star Magnitudes : G = 12.43 mag, RP = 11.98 mag, BP = 12.72 mag Object Magnitude : V = 17.44 mag Estimated Magnitude Drop : 5.0 mag Estimated Max. Duration : 1.5 sec Object Mean Diameter : 9 km (src: astorb) Speed of the shadow : 6.0 km/s Elongation to Moon & Sun : 83° (sunlit = 85%), Sun = 142° Cross-track uncertainty : 3.7 mas = 5 km = 0.60 path-width (1-sig) RUWE and duplicate source : 1.06 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#51 [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) |