2020-11-01 / TYC 1757-00993-1 / (829) Academia
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | J.J. Castellani | O+ | VID | M400 | FR | GPS++ | 18:54:21 | 18:55:30.46 | 18:55:34.54 | 18:56:22 | 0.08 | 0.08 | 4.08 | 39.6 |
| 2 | show | Eric Frappa | O+ | VID | M203 | FR | GPS++ | 18:54:13 | 18:55:15.92 | 18:55:20.99 | 18:56:17 | 0.04 | 0.02 | 5.07 | 49.2 |
| 3 | show | Gerard Vaudescal | O- | CCD | M254 | FR | 18:54:16 | 18:56:44 |
3 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):| JPL#67 : a420b220-31bd-470d-9a59-3dd05a068f78 [db: observed] |
Using prediction a420b220-31bd-470d-9a59-3dd05a068f78 for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = 709.3, 74.7 km Circular diameter = 119 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. |
Sky projection (artificial light) for occ. time: 2020-11-01, 18:55 UT (JD = 2459155.288)
| DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
|---|---|---|---|---|---|---|---|---|---|---|
| # 1633 | None | 7.893 | 245°, -67° | 2.450883e6 | 8272.3 | 0.0° | None | None | not scaled | 2016-01-12 |
| # 1634 | None | 7.893 | 71°, -41° | 2.450883e6 | 8272.3 | 0.0° | None | None | not scaled | 2016-01-12 |
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] : a420b220-31bd-470d-9a59-3dd05a068f78 [observed] Occultation Date + Time : 2020-11-01 at 18:49:31 UT +/- 0.01 min [1] Object Designation : (829) Academia Orbit Class : MBA Star Designation : GDR3 0097905639233649920 Star Coordinates (ICRF) : RA = 01 55 58.2006, DE = +22 40 07.013 [2] Star Magnitudes : G = 10.95 mag, RP = 10.24 mag, BP = 11.53 mag Object Magnitude : V = 14.11 mag Estimated Magnitude Drop : 3.2 mag Estimated Max. Duration : 4.5 sec Object Mean Diameter : 44 km (src: astorb) Speed of the shadow : 9.7 km/s Elongation to Moon & Sun : 22° (sunlit = 99%), Sun = 169° Cross-track uncertainty : 4.3 mas = 4 km = 0.10 path-width (1-sig) RUWE and duplicate source : 1.94 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#67 [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) |