2020-06-21 / 4UC 388-137508 / (764) Gedania
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | F. Van Den Abbeel | O+ | VID | M200 | BE | GPS++ | 00:57:01 | 00:58:00.95 | 00:58:08.63 | 00:59:00 | 0.64 | 0.32 | 7.68 | 77.6 |
2 | show | O. Schreurs et al | O+ | VID | M127 | BE | GPS++ | 00:56:56 | 00:58:01.10 | 00:58:06.22 | 00:59:11 | 0.32 | 0.32 | 5.12 | 51.7 |
3 | show | Jan-Maarten Winkel | O- | VID | M310 | NL | 00:56:56 | 00:58:56 |
3 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#60 : 2c6146b4-7173-4378-9f8c-45b7eb9b4577 [db: observed] |
Using prediction 2c6146b4-7173-4378-9f8c-45b7eb9b4577 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = -1007.6, 8.1 km Circular diameter = 80 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] : 2c6146b4-7173-4378-9f8c-45b7eb9b4577 [observed] Occultation Date + Time : 2020-06-21 at 00:54:56 UT +/- 0.02 min [1] Object Designation : (764) Gedania Orbit Class : MBA Star Designation : GDR3 6880657493618433280 Star Coordinates (ICRF) : RA = 20 06 35.9851, DE = -12 31 56.998 [2] Star Magnitudes : G = 13.19 mag, RP = 12.21 mag, BP = 14.15 mag Object Magnitude : V = 14.93 mag Estimated Magnitude Drop : 1.9 mag Estimated Max. Duration : 5.8 sec Object Mean Diameter : 58 km (src: astorb) Speed of the shadow : 10.1 km/s Elongation to Moon & Sun : 145° (sunlit = 0%), Sun = 148° Cross-track uncertainty : 2.7 mas = 4 km = 0.08 path-width (1-sig) RUWE and duplicate source : 1.03 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#60 [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) |