2017-07-17 / 4UC 432-103822 / (205) Martha
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Olivier Dechambre | O+ | CCD | M279 | FR | GPS | 02:24:05 | 02:29:57.79 | 02:30:00.24 | 02:34:10 | 0.02 | 0.02 | 2.45 | 27.7 |
2 | show | Roland Boninsegna | O+ | VID | M406 | BE | GPS++ | 02:25:46 | 02:29:50.02 | 02:29:52.94 | 02:33:05 | 0.02 | 0.02 | 2.92 | 33.0 |
3 | show | Kevin Green | O- | VID | M318 | US | 02:34:00 | 02:40:00 |
3 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#66 : 526548a7-b23f-4436-a2f4-c2c0bc09afd5 [db: observed] |
Using prediction 526548a7-b23f-4436-a2f4-c2c0bc09afd5 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = 548.8, 26.0 km Circular diameter = 79 km From 2 chords (VID,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. |
Map with groundtrack and observer stations |
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Event Details |
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Occultation UUID [and DB] : 526548a7-b23f-4436-a2f4-c2c0bc09afd5 [observed] Occultation Date + Time : 2017-07-17 at 02:34:26 UT +/- 0.0 min [1] Object Designation : (205) Martha Orbit Class : MBA Star Designation : GDR3 4233553322419278592 Star Coordinates (ICRF) : RA = 19 55 30.8225, DE = -03 46 08.223 [2] Star Magnitudes : G = 10.9 mag, RP = 10.08 mag, BP = 11.59 mag Object Magnitude : V = 13.46 mag Estimated Magnitude Drop : 2.7 mag Estimated Max. Duration : 7.2 sec Object Mean Diameter : 81 km (src: astorb) Speed of the shadow : 11.3 km/s Elongation to Moon & Sun : 90° (sunlit = 47%), Sun = 162° Cross-track uncertainty : 0.3 mas = 0 km = 0.00 path-width (1-sig) RUWE and duplicate source : 2.07 mas, dup.src = 1 (0:false, 1:true) Ephemeris Reference : JPL#66 [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) |