2019-12-12 / TYC 1947-00290-1 / (87) Sylvia
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Michel Turchenko | O+1 | CCD | M150 | RU | GPS++ | 01:38:18 | 01:39:40.47 | 01:40:00.23 | 01:42:01 | 0.03 | 0.03 | 19.76 | 183.8 |
| 2 | show | Michel Turchenko | O+2 | CCD | M150 | RU | GPS++ | 01:38:18 | 01:39:42.67 | 01:39:52.87 | 01:42:01 | 0.03 | 0.03 | 10.20 | 94.9 |
2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):| JPL#114 : f49d6dd6-7347-4099-a52c-69cd2a6140cb [db: observed] |
| JPL#114 : f0549295-76dc-4b4a-aa76-b00f16f43297 [db: observed] |
Using prediction f49d6dd6-7347-4099-a52c-69cd2a6140cb for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Circular profile fit was not successful ... 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: 2019-12-12, 01:38 UT (JD = 2458829.568)
| DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
|---|---|---|---|---|---|---|---|---|---|---|
| # 148 | None | 5.184 | 71°, 66° | 2.44538690762e6 | 13442.7 | 0.0° | None | 2013-07-24 | 258.0 +/- 28.0 km | 2007-02-27 |
| # 719 | 4.0 | 5.184 | 72°, 68° | 2.44375e6 | 15079.6 | 0.0° | None | 2017-06-19 | 277.0 +/- 5.0 km | 2017-06-13 |
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] : f49d6dd6-7347-4099-a52c-69cd2a6140cb [observed] Occultation Date + Time : 2019-12-12 at 01:39:49 UT +/- 0.04 min [1] Object Designation : (87) Sylvia Orbit Class : MBA Star Designation : GDR3 0707188325455532416 Star Coordinates (ICRF) : RA = 08 25 36.2639, DE = +28 08 29.384 [2] Star Magnitudes : G = 10.65 mag, RP = 10.12 mag, BP = 11.01 mag Object Magnitude : V = 12.79 mag Estimated Magnitude Drop : 2.3 mag Estimated Max. Duration : 27.9 sec Object Mean Diameter : 261 km (src: astorb) Speed of the shadow : 9.3 km/s Elongation to Moon & Sun : 45° (sunlit = 100%), Sun = 137° Cross-track uncertainty : 1.7 mas = 3 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.75 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#114 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) |