2025-10-24 / UCAC4 588-005764 / (283) Emma
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Björn Kattentidt | O+ | VID | M280 | DE | GPS | 22:33:13 | 22:34:37.136 | 22:34:47.493 | 22:36:01 | 0.188 | 0.188 | 10.36 | 108.8 |
| 2 | show | Jiri Kubanek | O+ | VID | M303 | CZ | GPS | 22:32:58 | 22:34:27.63 | 22:34:33.87 | 22:34:58 | 0.070 | 0.040 | 6.24 | 65.5 |
2 observations found in db: sodis
Available (probably) matching predictions (click on the link to switch):| JPL#121 : a0809e30-ddb8-11f0-547e-c18ae73f4740 [db: observed] |
Using prediction a0809e30-ddb8-11f0-547e-c18ae73f4740 for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = 650.0, 58.4 km Circular diameter = 117 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: 2025-10-24, 22:33 UT (JD = 2460973.440)
| DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
|---|---|---|---|---|---|---|---|---|---|---|
| # 196 | None | 6.895 | 251°, 22° | 2.44342031377e6 | 17553.1 | 0.0° | None | 2010-04-15 | not scaled | 2008-11-14 |
| # 1859 | 4.0 | 6.895 | 257°, 23° | 2.44342031377e6 | 17553.1 | 0.0° | None | 2017-09-21 | 147.0 +/- 14.0 km | 2017-09-21 |
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] : a0809e30-ddb8-11f0-547e-c18ae73f4740 [observed] Occultation Date + Time : 2025-10-24 at 22:34:22 UT +/- 0.01 min [1] Object Designation : (283) Emma Orbit Class : MBA Star Designation : GDR3 0106608342487425792 Star Coordinates (ICRF) : RA = 02 24 53.8544, DE = +27 35 11.496 [2] Star Magnitudes : G = 13.64 mag, RP = 13.13 mag, BP = 13.98 mag Object Magnitude : V = 12.59 mag Estimated Magnitude Drop : 0.4 mag Estimated Max. Duration : 14.2 sec Object Mean Diameter : 148.1 km (src: astorb) Speed of the shadow : 10.5 km/s Elongation to Moon & Sun : 153° (sunlit = 10%), Sun = 163° Cross-track uncertainty : 1.7 mas = 2 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.01 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#121 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) |