2021-08-02 / 4UC 433-105167 / (880) Herba
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Jiri Kubanek | O+ | CCD | M200 | CZ | GPS++ | 23:38:03 | 23:40:06.34 | 23:40:10.35 | 23:41:57 | 0.27 | 0.27 | 4.01 | 36.5 |
2 | show | Bjoern Kattentidt | O+ | VID | M279 | DE | GPS++ | 23:38:09 | 23:40:18.95 | 23:40:19.75 | 23:42:30 | 0.08 | 0.08 | 0.80 | 7.3 |
3 | show | Jiri Polak | O- | CCD | M303 | CZ | 23:38:08 | 23:42:08 |
3 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#60 : 827b2d5c-af35-436a-a6d2-469caddd231a [db: observed] |
Using prediction 827b2d5c-af35-436a-a6d2-469caddd231a for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = -1053.7, 36.0 km Circular diameter = 39 km From 2 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. |
Map with groundtrack and observer stations |
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Event Details |
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Occultation UUID [and DB] : 827b2d5c-af35-436a-a6d2-469caddd231a [observed] Occultation Date + Time : 2021-08-02 at 23:41:24 UT +/- 0.03 min [1] Object Designation : (880) Herba Orbit Class : MBA Star Designation : GDR3 4210549782518566912 Star Coordinates (ICRF) : RA = 19 44 20.0962, DE = -03 29 53.596 [2] Star Magnitudes : G = 13.14 mag, RP = 12.26 mag, BP = 13.94 mag Object Magnitude : V = 14.41 mag Estimated Magnitude Drop : 1.6 mag Estimated Max. Duration : 4.0 sec Object Mean Diameter : 36 km (src: astorb) Speed of the shadow : 9.1 km/s Elongation to Moon & Sun : 128° (sunlit = 28%), Sun = 158° Cross-track uncertainty : 7.3 mas = 7 km = 0.20 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#60 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) |