2021-10-08 / 4UC 376-176395 / (217) Eudora
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Michal Rottenborn | O+ | CCD | M254 | CZ | GPS++ | 18:38:16 | 18:40:18.99 | 18:40:29.85 | 18:42:16 | 0.06 | 0.06 | 10.86 | 68.4 |
| 2 | show | Jiri Polak | O+ | CCD | M303 | CZ | GPS++ | 18:38:11 | 18:40:14.67 | 18:40:26.14 | 18:42:11 | 0.03 | 0.03 | 11.47 | 72.3 |
| 3 | show | Karel Halir | O+ | VID | M507 | CZ | GPS++ | 18:38:14 | 18:40:17.91 | 18:40:28.38 | 18:42:14 | 0.01 | 0.01 | 10.47 | 66.0 |
| 4 | show | Jiri Kubanek | O+ | VID | M200 | CZ | GPS++ | 18:38:08 | 18:40:22.51 | 18:40:29.04 | 18:42:14 | 0.13 | 0.13 | 6.53 | 41.1 |
| 5 | show | Eberhard Bredner | O+ | VID | M254 | DE | GPS++ | 18:30:00 | 18:39:41.11 | 18:39:46.79 | 18:45:00 | 0.08 | 0.08 | 5.68 | 35.8 |
| 6 | show | Jan Manek | O- | CCD | M205 | CZ | 18:38:28 | 18:42:28 | |||||||
| 7 | show | Jiri Kubanek | O- | CCD | M150 | CZ | 18:38:08 | 18:42:15 |
7 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):| JPL#64 : 3ab7fbd8-2f74-4c47-803c-c9cb7421ef5c [db: observed] |
Using prediction 3ab7fbd8-2f74-4c47-803c-c9cb7421ef5c for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 73 x 65 km a',b' = 36.3, 32.3 km X0,Y0 = -1819.6, 21.5 km Mean diameter = 68 km From 5 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. |
Sky projection (artificial light) for occ. time: 2021-10-08, 18:40 UT (JD = 2459496.278)
| DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
|---|---|---|---|---|---|---|---|---|---|---|
| # 3998 | 1.0 | 25.263 | 135°, -25° | 2.451133e6 | 8363.3 | 0.0° | None | 2019-09-26 | not scaled | 2019-05-07 |
Image size: 300px. Transparent image background for copy & paste
| Map with groundtrack and observer stations |
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| Event Details |
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Occultation UUID [and DB] : 3ab7fbd8-2f74-4c47-803c-c9cb7421ef5c [observed] Occultation Date + Time : 2021-10-08 at 18:48:24 UT +/- 0.03 min [1] Object Designation : (217) Eudora Orbit Class : MBA Star Designation : GDR3 6841600602917575040 Star Coordinates (ICRF) : RA = 21 40 46.7901, DE = -14 51 41.899 [2] Star Magnitudes : G = 12.18 mag, RP = 11.58 mag, BP = 12.6 mag Object Magnitude : V = 13.1 mag Estimated Magnitude Drop : 1.3 mag Estimated Max. Duration : 10.6 sec Object Mean Diameter : 66 km (src: astorb) Speed of the shadow : 6.3 km/s Elongation to Moon & Sun : 95° (sunlit = 7%), Sun = 127° Cross-track uncertainty : 1.7 mas = 1 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.45 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#64 [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) |