2020-05-31 / 4UC 390-088039 / (1353) Maartje
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Michael Irzyk | O+ | CCD | M305 | FR | GPS | 00:50:00 | 01:01:21.95 | 01:01:23.95 | 01:10:25 | 0.50 | 0.50 | 2.00 | 18.0 |
| 2 | show | Eric Tessier | O+ | CCD | M152 | FR | NTP | 01:00:45 | 01:01:21.39 | 01:01:25.93 | 01:04:45 | 0.30 | 0.30 | 4.54 | 40.9 |
| 3 | show | Arnaud Leroy | O+ | CCD | M200 | FR | GPS++ | 01:00:03 | 01:01:19.94 | 01:01:24.14 | 01:03:00 | 0.15 | 0.15 | 4.20 | 37.8 |
| 4 | show | Andreas Schweizer | O- | CCD | L107 | CH | 01:00:03 | 01:01:04 | |||||||
| 5 | show | Jonas Schenker | O- | VID | M450 | CH | 00:58:23 | 01:02:55 | |||||||
| 6 | show | Roland Boninsegna | O- | VID | M400 | BE | 00:59:09 | 01:03:00 | |||||||
| 7 | show | Jean Bourgeois | O- | VID | M356 | BE | 01:00:30 | 01:01:30 | |||||||
| 8 | show | John Talbot | O- | VID | M303 | UK | 00:59:50 | 01:03:49 | |||||||
| 9 | show | Tim Haymes | O- | CCD | M279 | UK | 00:59:00 | 01:03:00 | |||||||
| 10 | show | William Stewart | O- | VID | M279 | UK | 01:00:58 | 01:02:48 |
10 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):| JPL#62 : f406cf64-1173-4f91-a961-6f6edfc29866 [db: observed] |
Using prediction f406cf64-1173-4f91-a961-6f6edfc29866 for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 48 x 28 km a',b' = 23.8, 14.2 km X0,Y0 = -1875.9, 20.5 km Mean diameter = 37 km From 3 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. |
Sky projection (artificial light) for occ. time: 2020-05-31, 01:00 UT (JD = 2459000.542)
| DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
|---|---|---|---|---|---|---|---|---|---|---|
| # 722 | 2.0 | 22.992 | 285°, 74° | 2.450922e6 | 8078.5 | 0.0° | None | 2017-04-03 | not scaled | 2017-03-31 |
| # 723 | 2.0 | 22.993 | 120°, 42° | 2.450922e6 | 8078.5 | 0.0° | None | 2017-04-03 | not scaled | 2017-03-31 |
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] : f406cf64-1173-4f91-a961-6f6edfc29866 [observed] Occultation Date + Time : 2020-05-31 at 00:56:31 UT +/- 0.03 min [1] Object Designation : (1353) Maartje Orbit Class : MBA Star Designation : GDR3 4153674451193507072 Star Coordinates (ICRF) : RA = 18 17 48.1066, DE = -12 04 46.343 [2] Star Magnitudes : G = 12.26 mag, RP = 11.63 mag, BP = 12.69 mag Object Magnitude : V = 14.28 mag Estimated Magnitude Drop : 2.2 mag Estimated Max. Duration : 3.8 sec Object Mean Diameter : 34 km (src: astorb) Speed of the shadow : 9.0 km/s Elongation to Moon & Sun : 101° (sunlit = 60%), Sun = 153° Cross-track uncertainty : 1.3 mas = 1 km = 0.05 path-width (1-sig) RUWE and duplicate source : 0.96 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#62 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) |