2019-02-12 / 4UC 522-049212 / (334) Chicago
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Michel Turchenko | O+ | CCD | M150 | RU | GPS++ | 21:08:59 | 21:10:58.48 | 21:11:10.58 | 21:13:02 | 0.06 | 0.06 | 12.10 | 185.1 |
| 2 | show | Jan Manek | O+ | CCD | M205 | CZ | NTP | 21:11:11 | 21:13:04.46 | 21:13:14.99 | 21:15:11 | 0.30 | 0.60 | 10.53 | 161.1 |
| 3 | show | Jiri Kubanek | O+ | VID | M203 | CZ | GPS++ | 21:11:06 | 21:13:01.37 | 21:13:14.17 | 21:15:12 | 0.64 | 0.64 | 12.80 | 195.8 |
| 4 | show | Chad Ellington | O+ | VID | M250 | DE | GPS++ | 21:12:30 | 21:13:35.2 | 21:13:44.9 | 21:14:57 | 0.14 | 0.14 | 9.70 | 148.4 |
| 5 | show | Malcolm Jennings | O+ | VID | M276 | UK | RAD++ | 21:09:00 | 21:13:56.50 | 21:13:59.70 | 21:19:00 | 0.02 | 0.02 | 3.20 | 49.0 |
| 6 | show | Peter Tickner | O+ | CCD | M356 | UK | NTP | 21:12:00 | 21:13:57.86 | 21:14:02.85 | 21:16:01 | 0.06 | 0.02 | 4.99 | 76.3 |
| 7 | show | Tim Haymes | O+ | VID | M300 | UK | GPS++ | 21:11:00 | 21:13:56.38 | 21:14:04.06 | 21:17:00 | 0.16 | 0.08 | 7.68 | 117.5 |
| 8 | show | Philip Denyer | O+ | VID | M235 | UK | GPS++ | 21:12:05 | 21:13:52.88 | 21:14:02.64 | 21:16:04 | 0.08 | 0.08 | 9.76 | 149.3 |
| 9 | show | Henk De Groot | O+ | VID | M356 | NL | GPS++ | 21:10:59 | 21:13:33.79 | 21:13:45.47 | 21:15:48 | 0.09 | 0.09 | 11.68 | 178.7 |
| 10 | show | Jan-Maarten Winkel | O+ | VID | M310 | NL | GPS++ | 21:12:40 | 21:13:32.45 | 21:13:42.97 | 21:14:40 | 0.65 | 0.65 | 10.52 | 161.0 |
| 11 | show | Simon Kidd | O+ | CCD | M350 | UK | GPS++ | 21:12:00 | 21:13:51.96 | 21:14:04.35 | 21:16:00 | 0.03 | 0.03 | 12.39 | 189.6 |
| 12 | show | Stefano Sposetti | O- | VID | M280 | CH | 21:12:18 | 21:15:16 | |||||||
| 13 | show | Roland Boninsegna | O- | VID | M406 | BE | 21:11:04 | 21:16:53 | |||||||
| 14 | show | Oliver Kloes | O- | VID | M254 | DE | 21:12:51 | 21:15:00 | |||||||
| 15 | show | O. Schreurs et al | O- | VID | M280 | BE | 21:12:32 | 21:15:02 |
15 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):| JPL#183 : b691ffb3-a5fb-41d8-a75c-0942ec562075 [db: observed] |
| JPL#183 : 8382a4aa-d956-496b-8bf6-68d352def23f [db: observed] |
Using prediction b691ffb3-a5fb-41d8-a75c-0942ec562075 for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 201 x 145 km a',b' = 100.5, 72.6 km X0,Y0 = -1065.2, 10.5 km Mean diameter = 171 km From 11 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: 2019-02-12, 21:10 UT (JD = 2458527.382)
| DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
|---|---|---|---|---|---|---|---|---|---|---|
| # 4269 | 1.0 | 7.360 | 21°, 20° | 2.450924e6 | 7603.4 | 0.0° | None | 2019-09-26 | not scaled | 2019-05-07 |
| # 4270 | 1.0 | 7.360 | 200°, 32° | 2.450924e6 | 7603.4 | 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] : b691ffb3-a5fb-41d8-a75c-0942ec562075 [observed] Occultation Date + Time : 2019-02-12 at 21:09:12 UT +/- 0.02 min [1] Object Designation : (334) Chicago Orbit Class : MBA Star Designation : GDR3 0615299145128772480 Star Coordinates (ICRF) : RA = 09 56 17.4279, DE = +14 19 00.252 [2] Star Magnitudes : G = 11.96 mag, RP = 11.29 mag, BP = 12.21 mag Object Magnitude : V = 13.18 mag Estimated Magnitude Drop : 1.5 mag Estimated Max. Duration : 10.2 sec Object Mean Diameter : 156 km (src: astorb) Speed of the shadow : 15.3 km/s Elongation to Moon & Sun : 93° (sunlit = 49%), Sun = 177° Cross-track uncertainty : 2.7 mas = 5 km = 0.04 path-width (1-sig) RUWE and duplicate source : 4.57 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#183 [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) |