2020-11-21 / 4UC 660-010661 / (285) Regina
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Jiri Polak | O+ | CCD | M303 | CZ | GPS++ | 19:16:24 | 19:18:19.58 | 19:18:22.36 | 19:20:23 | 0.15 | 0.23 | 2.78 | 34.8 |
| 2 | show | Michal Rottenborn | O+ | CCD | M303 | CZ | GPS++ | 19:16:24 | 19:18:19.45 | 19:18:22.55 | 19:20:24 | 0.10 | 0.10 | 3.10 | 38.8 |
| 3 | show | Zdenek Moravec | O+ | VID | M355 | CZ | GPS++ | 19:17:39 | 19:18:11.04 | 19:18:13.76 | 19:19:25 | 0.32 | 0.16 | 2.72 | 34.0 |
| 4 | show | Matthieu Conjat | O- | CCD | M400 | FR | 19:18:24 | 19:20:14 | |||||||
| 5 | show | Andrea Manna | O- | VID | M200 | CH | 19:17:52 | 19:20:21 | |||||||
| 6 | show | Stefano Sposetti | O- | CCD | M420 | CH | 19:13:02 | 19:23:16 | |||||||
| 7 | show | Jiri Kubanek | O- | CCD | M203 | CZ | 19:16:20 | 19:20:27 |
7 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):| JPL#66 : 2ddd6119-78c3-4d05-9f71-5d2219e639d2 [db: observed] |
Using prediction 2ddd6119-78c3-4d05-9f71-5d2219e639d2 for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 263 x 22 km a',b' = 131.6, 10.8 km X0,Y0 = 1450.0, 25.9 km Mean diameter = 75 km From 3 chords (VID,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] : 2ddd6119-78c3-4d05-9f71-5d2219e639d2 [observed] Occultation Date + Time : 2020-11-21 at 19:16:55 UT +/- 0.02 min [1] Object Designation : (285) Regina Orbit Class : MBA Star Designation : GDR3 0338757578310299392 Star Coordinates (ICRF) : RA = 02 32 13.7366, DE = +41 58 17.238 [2] Star Magnitudes : G = 14.54 mag, RP = 13.85 mag, BP = 15.07 mag Object Magnitude : V = 15.45 mag Estimated Magnitude Drop : 1.3 mag Estimated Max. Duration : 3.6 sec Object Mean Diameter : 45 km (src: astorb) Speed of the shadow : 12.5 km/s Elongation to Moon & Sun : 87° (sunlit = 46%), Sun = 153° Cross-track uncertainty : 3.0 mas = 4 km = 0.10 path-width (1-sig) RUWE and duplicate source : 1.11 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#66 [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) |