2017-10-23 / TYC 0638-00660-1 / (154) Bertha
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Ted Swift | O+ | VID | M200 | US | GPS++ | 02:37:00 | 02:37:59.91 | 02:38:09.18 | 02:39:00 | 0.02 | 0.02 | 9.27 | 150.2 |
| 2 | show | Jerry Bardecker | O+ | VID | M203 | US | GPS++ | 02:35:37 | 02:37:58.32 | 02:38:06.72 | 02:39:38 | 0.04 | 0.04 | 8.40 | 136.1 |
| 3 | show | R. Bush/J. Bean | O+ | VID | M356 | US | GPS++ | 02:37:31 | 02:37:56.09 | 02:38:06.31 | 02:38:30 | 0.03 | 0.02 | 10.22 | 165.6 |
| 4 | show | Steve Messner | O+ | VID | M200 | US | GPS++ | 02:36:01 | 02:36:57.57 | 02:37:00.86 | 02:38:01 | 0.01 | 0.01 | 3.29 | 53.3 |
| 5 | show | Fausto Delucchi | O+ | VIS | M300 | CH | RAD+ | 02:29:15 | 02:29:48.12 | 02:29:58.43 | 02:31:00 | 10.31 | 167.0 | ||
| 6 | show | Alberto Ossola | O+ | VID | M230 | CH | GPS++ | 02:28:30 | 02:29:48.35 | 02:29:59.13 | 02:31:31 | 0.20 | 0.06 | 10.78 | 174.6 |
| 7 | show | Andrea Manna | O+ | VID | M200 | CH | GPS++ | 02:25:50 | 02:29:48.76 | 02:30:00.01 | 02:32:26 | 0.02 | 0.02 | 11.25 | 182.2 |
| 8 | show | Stefano Sposetti | O+ | VID | M280 | CH | GPS++ | 02:29:28 | 02:29:48.60 | 02:29:59.89 | 02:35:42 | 0.01 | 0.01 | 11.29 | 182.9 |
| 9 | show | Richard Nolthenius | O- | VID | M203 | US | 02:37:00 | 02:38:59 | |||||||
| 10 | show | E. Frappa/A. Klotz | O- | CCD | M250 | FR | 02:29:09 | 02:32:22 | |||||||
| 11 | show | Steve Messner | O- | VID | M150 | US | 02:36:01 | 02:38:01 | |||||||
| 12 | show | Pietro Baruffetti | O- | VID | M200 | IT | 02:27:42 | 02:31:42 |
12 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):| JPL#67 : 93f06ce7-bd12-457e-a4b0-4743e1d81a85 [db: observed] |
Using prediction 93f06ce7-bd12-457e-a4b0-4743e1d81a85 for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 203 x 181 km a',b' = 101.5, 90.7 km X0,Y0 = -114.8, 36.6 km Mean diameter = 192 km From 8 chords (VID,VIS) 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: 2017-10-23, 02:37 UT (JD = 2458049.609)
| DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
|---|---|---|---|---|---|---|---|---|---|---|
| # 939 | None | 25.229 | 234°, 32° | 2.44434e6 | 13709.6 | 0.0° | None | None | not scaled | 2016-01-04 |
| # 940 | None | 25.229 | 28°, 34° | 2.44434e6 | 13709.6 | 0.0° | None | None | not scaled | 2016-01-04 |
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] : 93f06ce7-bd12-457e-a4b0-4743e1d81a85 [observed] Occultation Date + Time : 2017-10-23 at 02:32:49 UT +/- 0.01 min [1] Object Designation : (154) Bertha Orbit Class : MBA Star Designation : GDR3 0074828470714735744 Star Coordinates (ICRF) : RA = 02 24 51.9476, DE = +13 53 20.503 [2] Star Magnitudes : G = 9.83 mag, RP = 9.17 mag, BP = 10.33 mag Object Magnitude : V = 12.59 mag Estimated Magnitude Drop : 2.8 mag Estimated Max. Duration : 11.4 sec Object Mean Diameter : 185 km (src: astorb) Speed of the shadow : 16.2 km/s Elongation to Moon & Sun : 151° (sunlit = 10%), Sun = 171° Cross-track uncertainty : 3.7 mas = 6 km = 0.04 path-width (1-sig) RUWE and duplicate source : 1.56 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#67 [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) |