2025-09-06 / UCAC4 424-073382 / (183) Istria
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Malcolm Jennings | O+ | VID | M276 | GB | GPS | 20:07:00 | 20:09:33.70 | 20:09:35.30 | 20:11:00 | 0.523 | 0.523 | 1.60 | 22.9 |
| 2 | show | Simon Kidd | O+ | VID | M350 | GB | GPS | 20:08:45 | 20:09:30.93 | 20:09:32.35 | 20:10:15 | 0.040 | 0.040 | 1.42 | 20.3 |
| 3 | show | Simon Kidd | O+ | VID | M350 | GB | GPS | 20:08:45 | 20:09:33.34 | 20:09:35.64 | 20:10:15 | 0.070 | 0.070 | 2.30 | 32.9 |
| 4 | show | Gerard VAUDESCAL | O- | VID | T250 | FR | GPS | 20:09:12 | :: | :: | 20:11:19 | ||||
| 5 | show | Jean jacques Castellani | O- | VID | M400 | FR | GPS | 20:09:56 | :: | :: | 20:10:33 |
5 observations found in db: sodis
Available (probably) matching predictions (click on the link to switch):| JPL#83 : 68a9fd90-ddb7-11f0-547e-8c22ebfffcb1 [db: observed] |
Using prediction 68a9fd90-ddb7-11f0-547e-8c22ebfffcb1 for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Ellipse profile fit was not successful. Trying circular fit. Circular profile fit was not successful ... 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: 2025-09-06, 20:08 UT (JD = 2460925.339)
| DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
|---|---|---|---|---|---|---|---|---|---|---|
| # 669 | None | 11.769 | 85°, 20° | 2.444112e6 | 16813.3 | 0.0° | None | None | not scaled | 2013-02-11 |
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] : 68a9fd90-ddb7-11f0-547e-8c22ebfffcb1 [observed] Occultation Date + Time : 2025-09-06 at 20:14:34 UT +/- 0.01 min [1] Object Designation : (183) Istria Orbit Class : MBA Star Designation : GDR3 4175325351277172864 Star Coordinates (ICRF) : RA = 17 49 45.7870, DE = -05 15 31.471 [2] Star Magnitudes : G = 13.8 mag, RP = 12.96 mag, BP = 14.53 mag Object Magnitude : V = 14.93 mag Estimated Magnitude Drop : 1.5 mag Estimated Max. Duration : 2.5 sec Object Mean Diameter : 35.4 km (src: astorb) Speed of the shadow : 14.3 km/s Elongation to Moon & Sun : 67° (sunlit = 99%), Sun = 102° Cross-track uncertainty : 1.0 mas = 1 km = 0.05 path-width (1-sig) RUWE and duplicate source : 1.07 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#83 Note : FP:true [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) |