2020-11-04 / 4UC 457-007811 / (70008) 1998 XA53
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Tim Haymes | O+ | CCD | M279 | UK | GPS++ | 23:20:00 | 23:21:06.76 | 23:21:08.06 | 23:22:00 | 0.20 | 0.30 | 1.30 | 12.5 |
2 | show | Simon Kidd | O+ | CCD | M350 | UK | GPS++ | 23:19:50 | 23:21:00.01 | 23:21:01.11 | 23:22:00 | 0.09 | 0.09 | 1.10 | 10.6 |
2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#51 : f928ab9e-eb0a-41e8-a7ea-262a4f82c34e [db: observed] |
Using prediction f928ab9e-eb0a-41e8-a7ea-262a4f82c34e for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = -203.8, 34.2 km Circular diameter = 13 km From 2 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. |
Map with groundtrack and observer stations |
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Event Details |
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Occultation UUID [and DB] : f928ab9e-eb0a-41e8-a7ea-262a4f82c34e [observed] Occultation Date + Time : 2020-11-04 at 23:16:23 UT +/- 0.03 min [1] Object Designation : (70008) 1998 XA53 Orbit Class : MBA Star Designation : GDR3 3231573839219402752 Star Coordinates (ICRF) : RA = 04 54 00.6407, DE = +01 20 45.658 [2] Star Magnitudes : G = 13.52 mag, RP = 12.97 mag, BP = 13.91 mag Object Magnitude : V = 17.31 mag Estimated Magnitude Drop : 3.8 mag Estimated Max. Duration : 1.0 sec Object Mean Diameter : 10 km (src: astorb) Speed of the shadow : 9.6 km/s Elongation to Moon & Sun : 28° (sunlit = 84%), Sun = 144° Cross-track uncertainty : 7.0 mas = 10 km = 1.07 path-width (1-sig) RUWE and duplicate source : 0.9 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#51 [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) |