2025-04-04 / UCAC4 531-050651 / (144) Vibilia
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Leszek Benedyktowicz | O+ | VID | M200 | PL | GPS | 23:14:23 | 23:15:56.700 | 23:16:06.100 | 23:17:32 | 0.20 | 0.20 | 9.40 | 77.1 |
2 | show | Marcin Filipek | O+ | VID | M250 | PL | GPS | 23:15:30 | 23:15:56.89 | 23:16:07.99 | 23:16:31 | 0.05 | 0.05 | 11.10 | 91.0 |
3 | show | Anna Marciniak | O+ | CCD | M400 | PL | GPS | 23:14:29 | 23:16:29.230 | 23:16:38.680 | 23:17:49 | 0.16 | 0.16 | 9.45 | 77.5 |
4 | show | Anna Marciniak | O+ | CCD | M350 | PL | GPS | 23:14:39 | 23:16:39.500 | 23:16:46.300 | 23:19:03 | 0.50 | 0.50 | 6.80 | 55.8 |
5 | show | Nikolai Wuensche | O+ | VID | M300 | DE | GPS | 23:15:00 | 23:16:50.294 | 23:17:05.603 | 23:19:00 | 0.137 | 0.137 | 15.31 | 125.5 |
6 | show | Eberhard Bredner | O+ | VID | M250 | DE | GPS | 23:17:04 | 23:17:23.2 | 23:17:38.6 | 23:19:00 | 0.6 | 0.6 | 15.40 | 126.3 |
7 | show | Marek Zawilski | O- | VID | M200 | PL | GPS | 23:14:05 | 23:18:00 |
7 observations found in db: sodis
Available (probably) matching predictions (click on the link to switch):JPL#129 : 448a44b0-8543-11ef-78cd-6394ef3feb44 [db: asteroids] |
Using prediction 448a44b0-8543-11ef-78cd-6394ef3feb44 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 147 x 125 km a',b' = 73.5, 62.3 km X0,Y0 = -34.9, 13.0 km Mean diameter = 135 km From 6 chords (CCD,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. |
Sky projection (artificial light) for occ. time: 2025-04-04, 23:15 UT (JD = 2460770.469)
DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
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# 1099 | None | 13.825 | 248°, 56° | 2.44459e6 | 16180.5 | 0.0° | None | None | not scaled | 2016-01-04 |
# 1824 | 4.0 | 13.825 | 251°, 63° | 2.44459e6 | 16180.5 | 0.0° | None | 2017-06-19 | 143.0 +/- 3.0 km | 2017-06-16 |


Image size: 300px. Transparent image background for copy & paste
Map with groundtrack and observer stations |
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Event Details |
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Occultation UUID [and DB] : 448a44b0-8543-11ef-78cd-6394ef3feb44 [asteroids] Occultation Date + Time : 2025-04-04 at 23:21:48 UT +/- 0.01 min [1] Object Designation : (144) Vibilia Orbit Class : MBA Star Designation : GDR3 3889116908281196032 Star Coordinates (ICRF) : RA = 10 33 46.0912, DE = +16 02 11.184 [2] Star Magnitudes : G = 13.43 mag, RP = 12.23 mag, BP = 14.96 mag Object Magnitude : V = 13.21 mag Estimated Magnitude Drop : 0.7 mag Estimated Max. Duration : 17.4 sec Object Mean Diameter : 141.8 km (src: astorb) Speed of the shadow : 8.2 km/s Elongation to Moon & Sun : 50° (sunlit = 49%), Sun = 138° Cross-track uncertainty : 1.0 mas = 1 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.13 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#129 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) |