2023-09-26 / UCAC4 374-169106 / (7558) Yurlov
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Jiri Polak | O+ | VID | M300 | CZ | GPS | 20:38:58 | 20:40:55.00 | 20:40:55.70 | 20:42:58 | 0.05 | 0.05 | 0.70 | 3.2 |
2 | show | Jiri Kubanek | O+ | VID | M303 | CZ | GPS | 20:39:03 | 20:41:00.6 | 20:41:02.1 | 20:43:06 | 0.2 | 0.2 | 1.50 | 6.9 |
3 | show | Jan Manek | O+ | VID | M355 | CZ | GPS | 20:39:17 | 20:41:14.11 | 20:41:14.64 | 20:43:17 | 0.05 | 0.05 | 0.53 | 2.4 |
4 | show | Joachim Siegert | O- | CCD | M200 | DE | GPS | 20:40:14 | 20:41:06 | ||||||
5 | show | Michal Rottenborn | O- | VID | M254 | CZ | GPS | 20:38:55 | 20:42:55 |
5 observations found in db: sodis
Available (probably) matching predictions (click on the link to switch):JPL#54 : 3065c999-cde1-475e-92c7-0c20e96e37c9 [db: observed] |
Using prediction 3065c999-cde1-475e-92c7-0c20e96e37c9 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 7 x 4 km a',b' = 3.6, 1.8 km X0,Y0 = -15.2, 21.4 km Mean diameter = 5 km From 3 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] : 3065c999-cde1-475e-92c7-0c20e96e37c9 [observed] Occultation Date + Time : 2023-09-26 at 20:33:47 UT +/- 0.04 min [1] Object Designation : (7558) Yurlov Orbit Class : MBA Star Designation : GDR3 6878159712438200448 Star Coordinates (ICRF) : RA = 19 59 24.4108, DE = -15 17 16.439 [2] Star Magnitudes : G = 12.81 mag, RP = 11.96 mag, BP = 13.57 mag Object Magnitude : V = 17.65 mag Estimated Magnitude Drop : 4.9 mag Estimated Max. Duration : 1.4 sec Object Mean Diameter : 7 km (src: astorb) Speed of the shadow : 4.6 km/s Elongation to Moon & Sun : 30° (sunlit = 91%), Sun = 115° Cross-track uncertainty : 2.7 mas = 3 km = 0.50 path-width (1-sig) RUWE and duplicate source : 1.03 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#54 [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) |