2018-11-13 / 4UC 593-004965 / (476) Hedwig
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Stefan Meister | O+ | CCD | L140 | CH | GPS | 19:44:12 | 19:45:00.16 | 19:45:10.47 | 19:45:58 | 0.13 | 0.25 | 10.31 | 122.7 |
2 | show | C. Perello/A. Selva | O+1 | VID | M500 | ES | GPS++ | 19:43:53 | 19:46:07.95 | 19:46:18.35 | 19:47:52 | 0.02 | 0.02 | 10.40 | 123.8 |
3 | show | Joan Rovira | O+1 | VID | M200 | ES | GPS++ | 19:42:30 | 19:46:06.30 | 19:46:15.28 | 19:49:55 | 0.04 | 0.02 | 8.98 | 106.9 |
4 | show | Christian Weber | O+1 | VID | M203 | DE | GPS++ | 19:41:01 | 19:44:05.83 | 19:44:15.11 | 19:46:19 | 0.16 | 0.16 | 9.28 | 110.4 |
5 | show | C. Perello/A. Selva | O+2 | VID | M500 | ES | GPS++ | 19:43:53 | 19:46:07.75 | 19:46:18.45 | 19:47:52 | 0.02 | 0.04 | 10.70 | 127.3 |
6 | show | Joan Rovira | O+2 | VID | M200 | ES | GPS++ | 19:42:30 | 19:46:05.58 | 19:46:15.98 | 19:49:55 | 0.04 | 0.04 | 10.40 | 123.8 |
7 | show | Christian Weber | O+2 | VID | M203 | DE | GPS++ | 19:41:01 | 19:44:05.19 | 19:44:15.75 | 19:46:19 | 0.16 | 0.16 | 10.56 | 125.7 |
8 | show | Alberto Ossola | O- | VID | M230 | CH | 19:44:00 | 19:47:00 | |||||||
9 | show | Stefano Sposetti | O- | VID | M280 | CH | 19:42:24 | 19:47:41 | |||||||
10 | show | Jiri Polak | O- | VID | M303 | CZ | 19:42:37 | 19:46:35 | |||||||
11 | show | Michal Rottenborn | O- | VID | M303 | CZ | 19:42:30 | 19:46:30 |
11 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#128 : 84a402df-d871-4751-8ba5-7ab55c880574 [db: observed] |
Using prediction 84a402df-d871-4751-8ba5-7ab55c880574 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 148 x 53 km a',b' = 74.1, 26.7 km X0,Y0 = 1906.9, 30.1 km Mean diameter = 89 km From 7 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] : 84a402df-d871-4751-8ba5-7ab55c880574 [observed] Occultation Date + Time : 2018-11-13 at 19:44:20 UT +/- 0.01 min [1] Object Designation : (476) Hedwig Orbit Class : MBA Star Designation : GDR3 0299824764922083328 Star Coordinates (ICRF) : RA = 02 01 29.7989, DE = +28 31 56.036 [2] Star Magnitudes : G = 12.63 mag, RP = 12.01 mag, BP = 13.09 mag Object Magnitude : V = 12.67 mag Estimated Magnitude Drop : 0.8 mag Estimated Max. Duration : 9.8 sec Object Mean Diameter : 117 km (src: astorb) Speed of the shadow : 11.9 km/s Elongation to Moon & Sun : 96° (sunlit = 33%), Sun = 160° Cross-track uncertainty : 1.7 mas = 2 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.13 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#128 [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) |