2022-07-25 / TYC 5781-00103-1 / (16976) 1999 AC2
# | 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++ | 00:44:33 | 00:44:47.28 | 00:44:47.77 | 00:45:01 | 0.01 | 0.01 | 0.49 | 3.8 |
2 | show | C. Perello/A. Selva | O+ | VID | M500 | ES | GPS++ | 00:42:55 | 00:44:44.97 | 00:44:45.49 | 00:46:53 | 0.02 | 0.02 | 0.52 | 4.1 |
2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#57 : 77b54788-814b-475e-91f7-655230c331c5 [db: observed] |
Using prediction 77b54788-814b-475e-91f7-655230c331c5 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = 1505.2, 15.8 km Circular diameter = 4 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] : 77b54788-814b-475e-91f7-655230c331c5 [observed] Occultation Date + Time : 2022-07-25 at 00:47:23 UT +/- 0.04 min [1] Object Designation : (16976) 1999 AC2 Orbit Class : MBA Star Designation : GDR3 6891883954011186048 Star Coordinates (ICRF) : RA = 21 20 01.1855, DE = -11 49 05.701 [2] Star Magnitudes : G = 7.81 mag, RP = 7.18 mag, BP = 8.27 mag Object Magnitude : V = 16.65 mag Estimated Magnitude Drop : 8.8 mag Estimated Max. Duration : 0.7 sec Object Mean Diameter : 5 km (src: astorb) Speed of the shadow : 7.8 km/s Elongation to Moon & Sun : 123° (sunlit = 12%), Sun = 163° Cross-track uncertainty : 5.3 mas = 4 km = 0.87 path-width (1-sig) RUWE and duplicate source : 0.99 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#57 [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) |