2019-10-14 / 4UC 568-037568 / (1669) Dagmar
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Jiri Polak | O+ | VID | M303 | CZ | GPS++ | 01:54:05 | 01:55:56.89 | 01:55:59.13 | 01:58:06 | 0.20 | 0.20 | 2.24 | 29.8 |
2 | show | Michal Rottenborn | O+ | VID | M303 | CZ | GPS++ | 01:54:05 | 01:55:56.89 | 01:55:59.15 | 01:58:05 | 0.14 | 0.14 | 2.26 | 30.1 |
3 | show | Jiri Kubanek | O+ | VID | M203 | CZ | GPS++ | 01:54:03 | 01:55:59.50 | 01:56:00.78 | 01:58:09 | 0.32 | 0.32 | 1.28 | 17.0 |
3 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#61 : 19b655ba-d0e5-4987-ab9b-3250bdd548ea [db: observed] |
Using prediction 19b655ba-d0e5-4987-ab9b-3250bdd548ea for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 31 x 6 km a',b' = 15.3, 2.9 km X0,Y0 = -262.8, 6.0 km Mean diameter = 13 km From 3 chords (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. |
Map with groundtrack and observer stations |
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Event Details |
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Occultation UUID [and DB] : 19b655ba-d0e5-4987-ab9b-3250bdd548ea [observed] Occultation Date + Time : 2019-10-14 at 01:59:48 UT +/- 0.01 min [1] Object Designation : (1669) Dagmar Orbit Class : MBA Star Designation : GDR3 3368357689920747520 Star Coordinates (ICRF) : RA = 07 09 24.5748, DE = +23 25 57.932 [2] Star Magnitudes : G = 13.51 mag, RP = 13.13 mag, BP = 13.75 mag Object Magnitude : V = 16.69 mag Estimated Magnitude Drop : 3.2 mag Estimated Max. Duration : 2.7 sec Object Mean Diameter : 36 km (src: astorb) Speed of the shadow : 13.3 km/s Elongation to Moon & Sun : 83° (sunlit = 100%), Sun = 95° Cross-track uncertainty : 0.7 mas = 1 km = 0.04 path-width (1-sig) RUWE and duplicate source : 0.99 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) |