2022-10-16 / 4UC 327-192501 / (447) Valentine
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Peter Nosal | O+ | CCD | M250 | SK | NTP+ | 17:58:16 | 17:59:41.73 | 17:59:49.63 | 18:01:19 | 0.10 | 0.10 | 7.90 | 96.4 |
2 | show | Matej Korec | O+ | CCD | M202 | SK | NTP+ | 17:57:44 | 17:59:39.15 | 17:59:47.14 | 18:01:55 | 0.05 | 0.05 | 7.99 | 97.5 |
3 | show | Petr Zeleny | O- | CCD | M254 | CZ | 17:57:40 | 18:02:38 |
3 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#82 : 618f945a-522e-4f7d-9c8e-f71f11561c6e [db: observed] |
Using prediction 618f945a-522e-4f7d-9c8e-f71f11561c6e for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = 1873.0, 5.5 km Circular diameter = 96 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] : 618f945a-522e-4f7d-9c8e-f71f11561c6e [observed] Occultation Date + Time : 2022-10-16 at 17:56:03 UT +/- 0.01 min [1] Object Designation : (447) Valentine Orbit Class : MBA Star Designation : GDR3 6849079446649966848 Star Coordinates (ICRF) : RA = 20 21 10.3066, DE = -24 40 40.360 [2] Star Magnitudes : G = 11.27 mag, RP = 10.87 mag, BP = 11.51 mag Object Magnitude : V = 14.52 mag Estimated Magnitude Drop : 3.3 mag Estimated Max. Duration : 6.5 sec Object Mean Diameter : 80 km (src: astorb) Speed of the shadow : 12.2 km/s Elongation to Moon & Sun : 161° (sunlit = 59%), Sun = 98° Cross-track uncertainty : 1.1 mas = 2 km = 0.03 path-width (1-sig) RUWE and duplicate source : 3.84 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#82 [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) |