2018-04-18 / 4UC 480-026394 / (1031) Arctica
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Carles Schnabel | O+ | VID | M400 | ES | GPS++ | 21:18:59 | 21:20:53.27 | 21:20:53.83 | 21:23:21 | 0.32 | 0.32 | 0.56 | 13.8 |
2 | show | Carlos Perello | O+ | VID | M500 | ES | GPS++ | 21:18:21 | 21:20:52.85 | 21:20:54.77 | 21:23:00 | 0.32 | 0.32 | 1.92 | 47.4 |
2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#68 : 7d0216c7-7f1c-4522-855b-0536f327d64f [db: observed] |
JPL#68 : ecda72a6-1d97-4f1e-bf0d-f6b31facca6c [db: observed] |
Using prediction 7d0216c7-7f1c-4522-855b-0536f327d64f for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = 492.7, 27.1 km Circular diameter = 92 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. |
Map with groundtrack and observer stations |
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Event Details |
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Occultation UUID [and DB] : 7d0216c7-7f1c-4522-855b-0536f327d64f [observed] Occultation Date + Time : 2018-04-18 at 21:17:33 UT +/- 0.0 min [1] Object Designation : (1031) Arctica Orbit Class : MBA Star Designation : GDR3 3132439362602317696 Star Coordinates (ICRF) : RA = 06 49 45.9189, DE = +05 52 40.736 [2] Star Magnitudes : G = 13.73 mag, RP = 13.34 mag, BP = 13.96 mag Object Magnitude : V = 15.23 mag Estimated Magnitude Drop : 1.7 mag Estimated Max. Duration : 3.1 sec Object Mean Diameter : 76 km (src: astorb) Speed of the shadow : 24.7 km/s Elongation to Moon & Sun : 39° (sunlit = 10%), Sun = 75° Cross-track uncertainty : 0.7 mas = 1 km = 0.02 path-width (1-sig) RUWE and duplicate source : 0.94 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#68 [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) |