2020-09-11 / 4UC 550-025513 / (168) Sibylla
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Pierre Le Cam | O+ | CCD | M250 | FR | GPS++ | 03:10:07 | 03:12:07.95 | 03:12:10.85 | 03:16:07 | 0.20 | 0.30 | 2.90 | 68.7 |
2 | show | Stefan Meister | O+ | CCD | M500 | CH | GPS++ | 03:12:12 | 03:12:24.23 | 03:12:31.57 | 03:12:47 | 0.13 | 0.10 | 7.34 | 174.0 |
3 | show | Thierry Midavaine | O- | CCD | M500 | FR | 03:10:30 | 03:14:30 |
3 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#71 : 77e04304-3467-4c15-8d6c-911b75bc244a [db: observed] |
Using prediction 77e04304-3467-4c15-8d6c-911b75bc244a for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = -454.3, -4.1 km Circular diameter = 187 km From 2 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] : 77e04304-3467-4c15-8d6c-911b75bc244a [observed] Occultation Date + Time : 2020-09-11 at 03:15:02 UT +/- 0.01 min [1] Object Designation : (168) Sibylla Orbit Class : MBA Star Designation : GDR3 3374032269433136896 Star Coordinates (ICRF) : RA = 06 19 41.8646, DE = +19 51 35.460 [2] Star Magnitudes : G = 14.04 mag, RP = 13.39 mag, BP = 14.51 mag Object Magnitude : V = 14.39 mag Estimated Magnitude Drop : 0.9 mag Estimated Max. Duration : 6.3 sec Object Mean Diameter : 148 km (src: astorb) Speed of the shadow : 23.7 km/s Elongation to Moon & Sun : 8° (sunlit = 43%), Sun = 74° Cross-track uncertainty : 1.0 mas = 2 km = 0.02 path-width (1-sig) RUWE and duplicate source : 0.9 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#71 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) |