2021-08-20 / 4UC 657-025602 / (1437) Diomedes
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Stefan Meister | O+ | CCD | M500 | CH | GPS++ | 22:48:55 | 22:49:18.22 | 22:49:23.24 | 22:49:55 | 0.36 | 0.36 | 5.02 | 115.0 |
| 2 | show | Gregor Krannich | O+ | CCD | M350 | DE | GPS++ | 22:46:32 | 22:49:16.46 | 22:49:20.06 | 22:51:27 | 0.70 | 0.70 | 3.60 | 82.4 |
2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):| JPL#92 : b8a3ddf2-35ec-4e49-ac95-4897a51f861e [db: observed] |
Using prediction b8a3ddf2-35ec-4e49-ac95-4897a51f861e for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = 2340.6, 12.4 km Circular diameter = 125 km From 2 chords (CCD) 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: 2021-08-20, 22:48 UT (JD = 2459447.450)
| DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
|---|---|---|---|---|---|---|---|---|---|---|
| # 4215 | 1.0 | 24.499 | 150°, 5° | 2.451104e6 | 8343.5 | 0.0° | None | 2019-09-26 | not scaled | 2019-05-07 |
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] : b8a3ddf2-35ec-4e49-ac95-4897a51f861e [observed] Occultation Date + Time : 2021-08-20 at 22:50:40 UT +/- 0.03 min [1] Object Designation : (1437) Diomedes Orbit Class : JTRO Star Designation : GDR3 0203293072845936896 Star Coordinates (ICRF) : RA = 04 47 56.8869, DE = +41 17 57.316 [2] Star Magnitudes : G = 13.97 mag, RP = 13.46 mag, BP = 14.31 mag Object Magnitude : V = 16.01 mag Estimated Magnitude Drop : 2.2 mag Estimated Max. Duration : 7.2 sec Object Mean Diameter : 164 km (src: astorb) Speed of the shadow : 22.9 km/s Elongation to Moon & Sun : 127° (sunlit = 97%), Sun = 73° Cross-track uncertainty : 0.3 mas = 1 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#92 [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) |