2026-08-07 / UCAC4 418-138596 / (313) Chaldaea
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Deborah Smith, Eric Smith | O+ | VID | M280 | FR | GPS | 00:01:52 | 00:02:51.732 | 00:02:56.082 | 00:03:53 | 0.097 | 0.097 | 4.35 | 55.2 |
| 2 | show | Oliver Kloes | O+ | CCD | M254 | DE | GPS | 00:00:02 | 00:02:11.9 | 00:02:19.4 | 00:04:01 | 0.500 | 0.500 | 7.50 | 95.2 |
2 observations found in db: sodis
Available (probably) matching predictions (click on the link to switch):| JPL130 : 50d3fa60-d995-11f1-43f3-f4b2b7af7fa9 [db: observed] |
| JPL130 : 1cce8730-d9ae-11f1-43f3-4308bd7d3fd3 [db: observed] |
Using prediction 50d3fa60-d995-11f1-43f3-f4b2b7af7fa9 for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = 1736.1, 22.9 km Circular diameter = 97 km From 2 chords (CCD,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: 2026-08-07, 00:02 UT (JD = 2461259.501)
| DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
|---|---|---|---|---|---|---|---|---|---|---|
| # 1223 | None | 8.390 | 218°, 29° | 2.443125e6 | 18134.5 | 0.0° | None | None | not scaled | 2016-01-04 |
| # 1224 | None | 8.390 | 44°, 11° | 2.443125e6 | 18134.5 | 0.0° | None | None | not scaled | 2016-01-04 |
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] : 50d3fa60-d995-11f1-43f3-f4b2b7af7fa9 [observed] Occultation Date + Time : 2026-08-07 at 00:07:32 UT +/- 0.01 min [1] Object Designation : (313) Chaldaea Orbit Class : MBA Star Designation : GDR3 4196891241064240128 Star Coordinates (ICRF) : RA = 19 51 21.5652, DE = -06 27 47.714 [2] Star Magnitudes : G = 14.13 mag, RP = 13.3 mag, BP = 14.85 mag Object Magnitude : V = 13.26 mag Estimated Magnitude Drop : 0.4 mag Estimated Max. Duration : 7.6 sec Object Mean Diameter : 96.3 km (src: astorb) Speed of the shadow : 12.7 km/s Elongation to Moon & Sun : 115° (sunlit = 40%), Sun = 159° Cross-track uncertainty : 0.7 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL130 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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