2019-06-01 / 4UC 363-137590 / (74) Galatea
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Jiri Polak | O+ | VID | M303 | CZ | GPS++ | 21:55:17 | 21:57:26.53 | 21:57:37.89 | 21:59:18 | 0.32 | 0.16 | 11.36 | 102.2 |
2 | show | Jiri Kubanek | O+ | VID | M203 | CZ | GPS++ | 21:55:17 | 21:57:23.29 | 21:57:34.81 | 21:59:20 | 2.56 | 1.28 | 11.52 | 103.7 |
3 | show | O. Schreurs et al | O- | VID | M406 | BE | 21:57:05 | 21:59:07 |
3 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#127 : a7545b88-a5eb-42b6-8b3c-366b788aa343 [db: observed] |
Using prediction a7545b88-a5eb-42b6-8b3c-366b788aa343 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = -712.3, -15.1 km Circular diameter = 107 km From 2 chords (VID) 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] : a7545b88-a5eb-42b6-8b3c-366b788aa343 [observed] Occultation Date + Time : 2019-06-01 at 21:50:57 UT +/- 0.01 min [1] Object Designation : (74) Galatea Orbit Class : MBA Star Designation : GDR3 4096505790791838592 Star Coordinates (ICRF) : RA = 18 23 03.9910, DE = -17 32 31.261 [2] Star Magnitudes : G = 13.37 mag, RP = 12.66 mag, BP = 13.9 mag Object Magnitude : V = 13.13 mag Estimated Magnitude Drop : 0.6 mag Estimated Max. Duration : 13.2 sec Object Mean Diameter : 119 km (src: astorb) Speed of the shadow : 9.0 km/s Elongation to Moon & Sun : 137° (sunlit = 3%), Sun = 155° Cross-track uncertainty : 1.0 mas = 1 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.91 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#127 Object is a Gaia mass determination target ! [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) |