2020-08-22 / TYC 6947-00591-1 / (328) Gudrun
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Michele Bigi | O+ | VID | M200 | IT | GPS++ | 23:00:00 | 23:10:28.68 | 23:10:31.78 | 23:12:00 | 0.06 | 0.04 | 3.10 | 44.3 |
| 2 | show | Sylvain Chapeland | O+ | VIS | M460 | FR | GPS | 23:09:30 | 23:10:51.9 | 23:10:57.7 | 23:11:10 | 0.5 | 0.5 | 5.80 | 82.9 |
| 3 | show | Eric Frappa | O+ | VID | L61 | FR | GPS++ | 23:10:01 | 23:11:11.79 | 23:11:17.35 | 23:12:20 | 0.08 | 0.04 | 5.56 | 79.5 |
| 4 | show | Carlo Gualdoni | O+ | VID | M250 | IT | GPS++ | 23:08:00 | 23:10:33.24 | 23:10:39.64 | 23:13:00 | 0.02 | 0.02 | 6.40 | 91.5 |
| 5 | show | Stefano Sposetti | O+ | VID | M200 | CH | GPS++ | 23:08:22 | 23:10:35.46 | 23:10:41.14 | 23:12:30 | 0.02 | 0.02 | 5.68 | 81.2 |
| 6 | show | A. Manna/S. Manna | O+ | VID | M200 | CH | GPS++ | 23:03:43 | 23:10:34.76 | 23:10:40.44 | 23:12:40 | 0.04 | 0.04 | 5.68 | 81.2 |
| 7 | show | Maurice Audejean | O+ | CCD | M320 | FR | GPS | 23:10:01 | 23:11:21.40 | 23:11:24.72 | 23:11:18 | 0.04 | 0.02 | 3.32 | 47.5 |
| 8 | show | Michel Deconinck | O- | VID | M250 | FR | 23:09:03 | 23:13:09 | |||||||
| 9 | show | Matthieu Conjat | O- | CCD | M400 | FR | 23:09:19 | 23:11:34 | |||||||
| 10 | show | Michal Rottenborn | O- | CCD | M303 | CZ | 23:08:17 | 23:12:17 | |||||||
| 11 | show | Jiri Kubanek | O- | CCD | M203 | CZ | 23:08:15 | 23:12:20 | |||||||
| 12 | show | Jiri Polak | O- | CCD | M303 | CZ | 23:08:18 | 23:12:18 |
12 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):| JPL#61 : 3cbc33cf-6a7d-414f-84e3-163363165139 [db: observed] |
Using prediction 3cbc33cf-6a7d-414f-84e3-163363165139 for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 110 x 95 km a',b' = 54.8, 47.6 km X0,Y0 = -199.9, 4.6 km Mean diameter = 102 km From 7 chords (VID,VIS,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: 2020-08-22, 23:10 UT (JD = 2459084.465)
| DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
|---|---|---|---|---|---|---|---|---|---|---|
| # 5906 | 3.0 | 10.985 | 31°, 11° | 2.450985e6 | 8099.5 | 0.0° | None | 2020-12-04 | 108.0 +/- 4.0 km | 2020-12-04 |
| # 5907 | 3.0 | 10.985 | 210°, -15° | 2.450985e6 | 8099.5 | 0.0° | None | 2020-12-04 | 105.0 +/- 4.0 km | 2020-12-04 |
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] : 3cbc33cf-6a7d-414f-84e3-163363165139 [observed] Occultation Date + Time : 2020-08-22 at 23:10:54 UT +/- 0.01 min [1] Object Designation : (328) Gudrun Orbit Class : MBA Star Designation : GDR3 6789899337092223488 Star Coordinates (ICRF) : RA = 21 30 05.5352, DE = -27 40 05.294 [2] Star Magnitudes : G = 9.35 mag, RP = 8.62 mag, BP = 9.92 mag Object Magnitude : V = 14.0 mag Estimated Magnitude Drop : 4.7 mag Estimated Max. Duration : 8.6 sec Object Mean Diameter : 123 km (src: astorb) Speed of the shadow : 14.3 km/s Elongation to Moon & Sun : 113° (sunlit = 20%), Sun = 161° Cross-track uncertainty : 4.0 mas = 6 km = 0.06 path-width (1-sig) RUWE and duplicate source : 0.83 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#61 [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) |