2026-04-09 / TYC 5715-00589-1 / (18) Melpomene
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Karl-Ludwig Bath | O+ | VID | T180 | DE | GPS | 01:59:40 | 02:01:33.353 | 02:01:37.753 | 02:03:40 | 0.264 | 0.264 | 4.40 | 76.1 |
| 2 | show | Björn Kattentidt | O+ | VID | M280 | DE | GPS | 02:01:32 | 02:01:49.576 | 02:01:55.654 | 02:03:02 | 0.475 | 0.475 | 6.08 | 105.2 |
| 3 | show | Jiri Polak | O+ | VID | M300 | CZ | NTP | 02:00:57 | 02:01:55.12 | 02:02:02.48 | 02:03:47 | 0.050 | 0.100 | 7.36 | 127.3 |
| 4 | show | Jiri Kubanek | O+ | VID | M303 | CZ | GPS | 02:01:00 | 02:01:56.710 | 02:02:03.890 | 02:03:01 | 0.080 | 0.080 | 7.18 | 124.2 |
| 5 | show | Daniel Antuszewicz | O+ | VID | M300 | PL | NTP | 02:01:35 | 02:02:29.73 | 02:02:37.29 | 02:03:35 | 0.130 | 0.060 | 7.56 | 130.8 |
| 6 | show | Anna Marciniak | O+ | CCD | M350 | PL | NTP | 02:00:56 | 02:02:18.17 | 02:02:21.77 | 02:03:55 | 0.160 | 0.130 | 3.60 | 62.3 |
| 7 | show | Wojciech Burzynski | O+ | VID | T600 | PL | GPS | 02:02:24 | 02:02:39.60 | 02:02:47.40 | 02:03:59 | 0.100 | 0.100 | 7.80 | 134.9 |
7 observations found in db: sodis
Available (probably) matching predictions (click on the link to switch):| JPL#139 : 364eb450-33b9-11f1-6999-b7adf5bc7f2f [db: asteroids] |
Using prediction 364eb450-33b9-11f1-6999-b7adf5bc7f2f for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 161 x 136 km a',b' = 80.3, 68.2 km X0,Y0 = 1706.5, 24.9 km Mean diameter = 148 km From 7 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: 2026-04-09, 02:00 UT (JD = 2461139.583)
| DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
|---|---|---|---|---|---|---|---|---|---|---|
| # 993 | None | 11.570 | 11°, 14° | 2.436249e6 | 24890.6 | 0.0° | None | None | not scaled | 2016-01-04 |
| # 1808 | 4.0 | 11.570 | 12°, 21° | 2.436249e6 | 24890.6 | 0.0° | None | 2017-06-19 | 146.0 +/- 3.0 km | 2017-06-06 |
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] : 364eb450-33b9-11f1-6999-b7adf5bc7f2f [asteroids] Occultation Date + Time : 2026-04-09 at 02:03:12 UT +/- 0.0 min [1] Object Designation : (18) Melpomene Orbit Class : MBA Star Designation : GDR3 4198729384010811904 Star Coordinates (ICRF) : RA = 19 05 06.7312, DE = -11 55 01.726 [2] Star Magnitudes : G = 11.36 mag, RP = 10.75 mag, BP = 11.81 mag Object Magnitude : V = 10.95 mag Estimated Magnitude Drop : 0.6 mag Estimated Max. Duration : 8.1 sec Object Mean Diameter : 140.6 km (src: astorb) Speed of the shadow : 17.3 km/s Elongation to Moon & Sun : 18° (sunlit = 61%), Sun = 93° Cross-track uncertainty : 1.0 mas = 1 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.85 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#139 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) |