2017-12-11 / TYC 1260-00900-1 / (211) Isolda
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Jiri Kubanek | O+ | VID | M203 | CZ | GPS++ | 22:37:58 | 22:39:56.27 | 22:40:12.27 | 22:42:14 | 0.16 | 0.16 | 16.00 | 139.2 |
2 | show | Karel Halir | O+ | VID | M507 | CZ | GPS++ | 22:37:30 | 22:39:57.47 | 22:40:13.27 | 22:42:30 | 0.02 | 0.02 | 15.80 | 137.5 |
2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#122 : 4dc53555-3da2-4a24-9b04-ff493b0ef8cd [db: observed] |
Using prediction 4dc53555-3da2-4a24-9b04-ff493b0ef8cd for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = 847.2, 37.8 km Circular diameter = 146 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] : 4dc53555-3da2-4a24-9b04-ff493b0ef8cd [observed] Occultation Date + Time : 2017-12-11 at 22:44:29 UT +/- 0.03 min [1] Object Designation : (211) Isolda Orbit Class : MBA Star Designation : GDR3 0063919150704903552 Star Coordinates (ICRF) : RA = 03 47 11.4779, DE = +21 44 09.883 [2] Star Magnitudes : G = 11.05 mag, RP = 10.07 mag, BP = 12.02 mag Object Magnitude : V = 11.66 mag Estimated Magnitude Drop : 1.1 mag Estimated Max. Duration : 16.5 sec Object Mean Diameter : 143 km (src: astorb) Speed of the shadow : 8.7 km/s Elongation to Moon & Sun : 130° (sunlit = 33%), Sun = 159° Cross-track uncertainty : 2.3 mas = 2 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.12 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#122 [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) |