2021-06-18 / TYC 6273-01107-1 / (2357) Phereclos
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Stefano Sposetti | O+ | CCD | M420 | CH | GPS++ | 23:05:10 | 23:06:37.98 | 23:06:42.05 | 23:07:38 | 0.20 | 0.30 | 4.07 | 63.1 |
2 | show | A. Kreutzer et al | O+ | CCD | M500 | AT | GPS+ | 23:05:22 | 23:06:16.95 | 23:06:19.73 | 23:07:42 | 0.03 | 0.02 | 2.78 | 43.1 |
3 | show | A.C. Perlbarg | O+ | CCD | V112 | FR | NTP | 23:04:02 | 23:07:04.15 | 23:07:07.54 | 23:08:59 | 0.16 | 0.16 | 3.39 | 52.5 |
4 | show | Josselin Desmars | O+ | CCD | L95 | FR | GPS++ | 23:05:19 | 23:07:05.59 | 23:07:09.80 | 23:10:05 | 0.35 | 0.35 | 4.21 | 65.3 |
5 | show | Arnaud Leroy | O+ | CCD | M200 | FR | GPS++ | 23:06:52 | 23:07:04.30 | 23:07:07.30 | 23:07:07 | 0.30 | 0.15 | 3.00 | 46.5 |
6 | show | Wolfgang Beisker | O- | CCD | M270 | PT | 23:02:00 | 23:12:00 | |||||||
7 | show | Carles Schnabel | O- | CCD | M400 | ES | 23:04:29 | 23:09:02 | |||||||
8 | show | Mario Billiani | O- | CCD | V112 | FR | 23:04:07 | 23:08:06 | |||||||
9 | show | Marek Harman | O- | CCD | M356 | SK | 23:04:45 | 23:06:46 | |||||||
10 | show | Karel Halir | O- | VID | M507 | CZ | 23:04:01 | 23:08:01 | |||||||
11 | show | Dariusz Miller | O- | VIS | M270 | PL | 23:04:20 | 23:07:40 | |||||||
12 | show | Christian Weber | O- | VID | M203 | DE | 23:03:11 | 23:07:42 |
12 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#73 : eb967867-e6da-4816-92b3-4e3100ea32f7 [db: observed] |
Using prediction eb967867-e6da-4816-92b3-4e3100ea32f7 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 202 x 87 km a',b' = 101.1, 43.5 km X0,Y0 = 131.7, 15.3 km Mean diameter = 133 km From 5 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. |
Map with groundtrack and observer stations |
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Event Details |
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Occultation UUID [and DB] : eb967867-e6da-4816-92b3-4e3100ea32f7 [observed] Occultation Date + Time : 2021-06-18 at 23:05:50 UT +/- 0.04 min [1] Object Designation : (2357) Phereclos Orbit Class : JTRO Star Designation : GDR3 4094477191831260672 Star Coordinates (ICRF) : RA = 18 19 22.9311, DE = -20 01 34.682 [2] Star Magnitudes : G = 11.23 mag, RP = 10.86 mag, BP = 11.45 mag Object Magnitude : V = 15.73 mag Estimated Magnitude Drop : 4.5 mag Estimated Max. Duration : 6.1 sec Object Mean Diameter : 95 km (src: astorb) Speed of the shadow : 15.5 km/s Elongation to Moon & Sun : 86° (sunlit = 59%), Sun = 173° Cross-track uncertainty : 0.7 mas = 2 km = 0.02 path-width (1-sig) RUWE and duplicate source : 0.92 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#73 [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) |