2019-12-05 / 4UC 537-034170 / (2634) James Bradley
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Leszek Benedyktowicz | O+ | VID | M203 | PL | GPS++ | 01:34:00 | 01:37:10.67 | 01:37:14.28 | 01:40:00 | 0.54 | 0.73 | 3.61 | 35.4 |
| 2 | show | Marcin Filipek | O+ | VID | M250 | PL | GPS++ | 01:34:30 | 01:37:11.55 | 01:37:13.71 | 01:39:30 | 0.29 | 0.34 | 2.16 | 21.2 |
| 3 | show | Jiri Kubanek | O+ | VID | M203 | CZ | GPS++ | 01:35:44 | 01:37:40.61 | 01:37:43.81 | 01:39:59 | 0.29 | 0.29 | 3.20 | 31.4 |
| 4 | show | Tomas Janik | O+ | VID | M254 | CZ | GPS++ | 01:36:07 | 01:37:51.55 | 01:37:54.11 | 01:40:15 | 0.26 | 0.26 | 2.56 | 25.1 |
| 5 | show | Jiri Polak | O- | VID | M303 | CZ | 01:36:03 | 01:40:04 | |||||||
| 6 | show | Jan-Maarten Winkel | O- | VID | M310 | NL | 01:37:57 | 01:39:57 | |||||||
| 7 | show | Tim Haymes | O- | VID | M279 | UK | 01:38:00 | 01:42:00 | |||||||
| 8 | show | Christian Weber | O- | VID | M254 | DE | 01:37:06 | 01:39:11 |
8 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):| JPL#63 : cae7a74f-2875-421e-9b7a-2fd922529262 [db: observed] |
Using prediction cae7a74f-2875-421e-9b7a-2fd922529262 for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 40 x 23 km a',b' = 20.2, 11.4 km X0,Y0 = -380.4, 22.4 km Mean diameter = 30 km From 4 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: 2019-12-05, 01:37 UT (JD = 2458822.567)
| DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
|---|---|---|---|---|---|---|---|---|---|---|
| # 3469 | 1.0 | 16.515 | 126°, -46° | 2.449746e6 | 9076.6 | 0.0° | None | 2019-09-26 | not scaled | 2019-05-07 |
| # 3470 | 1.0 | 16.515 | 292°, -43° | 2.449746e6 | 9076.6 | 0.0° | None | 2019-09-26 | not scaled | 2019-05-07 |
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] : cae7a74f-2875-421e-9b7a-2fd922529262 [observed] Occultation Date + Time : 2019-12-05 at 01:38:21 UT +/- 0.02 min [1] Object Designation : (2634) James Bradley Orbit Class : MBA Star Designation : GDR3 3358439369186825728 Star Coordinates (ICRF) : RA = 06 50 19.9352, DE = +17 15 48.969 [2] Star Magnitudes : G = 12.62 mag, RP = 11.78 mag, BP = 13.38 mag Object Magnitude : V = 15.73 mag Estimated Magnitude Drop : 3.2 mag Estimated Max. Duration : 4.1 sec Object Mean Diameter : 40 km (src: astorb) Speed of the shadow : 9.8 km/s Elongation to Moon & Sun : 110° (sunlit = 57%), Sun = 150° Cross-track uncertainty : 0.3 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.06 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#63 [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) |