2022-10-08 / 4UC 594-003846 / (1113) Katja
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Jan-Maarten Winkel | O+ | VID | M356 | NL | GPS++ | 21:25:14 | 21:26:10.69 | 21:26:13.57 | 21:27:14 | 0.08 | 0.08 | 2.88 | 32.0 |
2 | show | Eberhard Bredner | O+ | VID | M254 | DE | GPS++ | 21:20:00 | 21:26:04.36 | 21:26:07.80 | 21:30:00 | 0.08 | 0.08 | 3.44 | 38.2 |
2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#57 : 2f2a01b3-4030-462c-a59f-0802dd7e29f1 [db: observed] |
Using prediction 2f2a01b3-4030-462c-a59f-0802dd7e29f1 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = -10.9, 28.1 km Circular diameter = 51 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. |
Sky projection (artificial light) for occ. time: 2022-10-08, 21:26 UT (JD = 2459861.393)
DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
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# 4448 | 1.0 | 18.420 | 354°, -49° | 2.457317e6 | 2544.4 | 0.0° | None | 2020-10-05 | not scaled | 2019-10-23 |
# 4449 | 1.0 | 18.419 | 137°, -51° | 2.457317e6 | 2544.4 | 0.0° | None | 2020-10-05 | not scaled | 2019-10-23 |
Image size: 300px. Transparent image background for copy & paste
Map with groundtrack and observer stations |
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Event Details |
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Occultation UUID [and DB] : 2f2a01b3-4030-462c-a59f-0802dd7e29f1 [observed] Occultation Date + Time : 2022-10-08 at 21:22:32 UT +/- 0.03 min [1] Object Designation : (1113) Katja Orbit Class : MBA Star Designation : GDR3 0296923359894716032 Star Coordinates (ICRF) : RA = 01 33 16.0949, DE = +28 46 21.871 [2] Star Magnitudes : G = 12.83 mag, RP = 12.22 mag, BP = 13.28 mag Object Magnitude : V = 13.57 mag Estimated Magnitude Drop : 1.2 mag Estimated Max. Duration : 3.5 sec Object Mean Diameter : 39 km (src: astorb) Speed of the shadow : 11.1 km/s Elongation to Moon & Sun : 36° (sunlit = 99%), Sun = 156° Cross-track uncertainty : 6.7 mas = 9 km = 0.24 path-width (1-sig) RUWE and duplicate source : 0.97 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) |