2019-09-14 / 4UC 597-007906 / (675) Ludmilla
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Matthieu Conjat | O+ | CCD | M400 | FR | NTP | 21:49:10 | 21:50:14.89 | 21:50:28.75 | 21:51:38 | 1 | 1 | 13.86 | 81.8 |
| 2 | show | Alberto Ossola | O+ | VID | M230 | CH | GPS++ | 21:49:37 | 21:50:55.66 | 21:51:07.82 | 21:52:02 | 0.96 | 0.32 | 12.16 | 71.7 |
| 3 | show | Gregor Krannich | O+ | CCD | M350 | DE | GPS++ | 21:50:06 | 21:51:34.75 | 21:51:41.77 | 21:53:01 | 0.10 | 0.10 | 7.02 | 41.4 |
| 4 | show | Jiri Kubanek | O+ | VID | M203 | DE | GPS++ | 21:50:10 | 21:52:13.53 | 21:52:22.49 | 21:54:21 | 0.22 | 0.22 | 8.96 | 52.9 |
| 5 | show | Christian Weber | O+ | VID | M150 | DE | GPS++ | 21:51:18 | 21:52:55.43 | 21:53:03.85 | 21:53:43 | 0.30 | 0.30 | 8.42 | 49.7 |
| 6 | show | Andreas Schweizer | O- | CCD | L107 | CH | 21:50:48 | 21:52:09 | |||||||
| 7 | show | Stefan Meister | O- | CCD | M500 | CH | 21:50:47 | 21:52:14 | |||||||
| 8 | show | Jiri Polak | O- | VID | M303 | CZ | 21:50:05 | 21:54:06 |
8 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):| JPL#69 : 011c7787-d3da-4217-b766-67cf47ef3dc4 [db: observed] |
Using prediction 011c7787-d3da-4217-b766-67cf47ef3dc4 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 diameter = 83 km From 5 chords (VID,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: 2019-09-14, 21:49 UT (JD = 2458741.409)
| DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
|---|---|---|---|---|---|---|---|---|---|---|
| # 236 | None | 7.715 | 49°, 74° | 2.438762e6 | 19979.4 | 0.0° | None | 2010-04-15 | not scaled | 2007-05-14 |
| # 237 | None | 7.715 | 196°, 49° | 2.438762e6 | 19979.4 | 0.0° | None | 2010-04-15 | not scaled | 2007-05-14 |
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] : 011c7787-d3da-4217-b766-67cf47ef3dc4 [observed] Occultation Date + Time : 2019-09-14 at 21:57:15 UT +/- 0.04 min [1] Object Designation : (675) Ludmilla Orbit Class : MBA Star Designation : GDR3 0122110528726529664 Star Coordinates (ICRF) : RA = 03 09 42.2533, DE = +29 19 26.429 [2] Star Magnitudes : G = 12.08 mag, RP = 11.05 mag, BP = 13.17 mag Object Magnitude : V = 12.04 mag Estimated Magnitude Drop : 0.7 mag Estimated Max. Duration : 13.6 sec Object Mean Diameter : 80 km (src: astorb) Speed of the shadow : 5.9 km/s Elongation to Moon & Sun : 55° (sunlit = 100%), Sun = 118° Cross-track uncertainty : 1.7 mas = 1 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.28 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#69 Object is a Gaia mass determination target ! [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) |