2020-09-19 / 4UC 410-082120 / (185) Eunike
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Jiri Kubanek | O+ | CCD | M203 | CZ | GPS++ | 18:16:36 | 18:18:28.99 | 18:18:40.81 | 18:20:40 | 1.72 | 1.72 | 11.82 | 183.2 |
2 | show | Jiri Polak | O+ | CCD | M303 | CZ | GPS++ | 18:16:37 | 18:18:30.65 | 18:18:40.76 | 18:20:37 | 0.25 | 0.65 | 10.11 | 156.7 |
3 | show | Michal Rottenborn | O+ | CCD | M303 | CZ | GPS++ | 18:16:37 | 18:18:29.09 | 18:18:40.52 | 18:20:37 | 1.30 | 1.30 | 11.43 | 177.2 |
3 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#111 : 720a8673-9184-4939-92b3-aa220317f7a4 [db: observed] |
JPL#111 : 920aa254-59e7-4bbd-a9de-2e73f708b40a [db: observed] |
JPL#111 : e4884cbf-90e9-4fa5-9cd1-c0b173573e09 [db: observed] |
Using prediction 720a8673-9184-4939-92b3-aa220317f7a4 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Ellipse profile fit was not successful. Trying circular fit. Circular diameter = 181 km From 3 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] : 720a8673-9184-4939-92b3-aa220317f7a4 [observed] Occultation Date + Time : 2020-09-19 at 18:22:27 UT +/- 0.01 min [1] Object Designation : (185) Eunike Orbit Class : MBA Star Designation : GDR3 4252543159568961920 Star Coordinates (ICRF) : RA = 18 38 29.6527, DE = -08 08 07.314 [2] Star Magnitudes : G = 13.84 mag, RP = 12.76 mag, BP = 14.95 mag Object Magnitude : V = 12.57 mag Estimated Magnitude Drop : 0.3 mag Estimated Max. Duration : 10.2 sec Object Mean Diameter : 158 km (src: astorb) Speed of the shadow : 15.5 km/s Elongation to Moon & Sun : 70° (sunlit = 8%), Sun = 102° Cross-track uncertainty : 2.0 mas = 3 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.05 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#111 [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) |