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2006-11-29 / TYC 1908-00844-1 / (578) Happelia

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Olivier Dechambre O+ VID M279 FR GPS++ 00:12:00 00:18:01.14 00:18:06.85 00:30:00 0.04 0.04 5.71 53.7
2 show Jean Lecacheux O+ VID M1020 FR GPS++ 00:05:10 00:18:00.19 00:18:04.69 00:29:06 0.02 0.04 4.50 42.3
3 show M. Meunier et al O+1 CCD M200 FR GPS++ 00:16:23 00:17:56.36 00:18:03.84 00:20:23 0.04 0.04 7.48 70.3
4 show M. Meunier et al O+2 CCD M200 FR GPS++ 00:16:23 00:18:30.10 00:18:32.26 00:20:23 0.04 0.04 2.16 20.3
5 show A. Eberle/O. Farago O- VID M406 DE 00:15:00 00:20:00
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

5 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#136 : d6df4b07-b50e-45dc-b348-b449f19bc67b [db: observed]

Using prediction d6df4b07-b50e-45dc-b348-b449f19bc67b for map and profile fit

Get observations as KML file (reduced site location resolution)

Ellipse and circular profile fits to the timings (chords)

 Auto-Fit Result:
Ellipse profile fit was not successful. Trying circular fit.

Circular profile fit was not successful ...








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: 2006-11-29, 00:18 UT (JD = 2454068.513)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 660None10.064 339°, 62° 2.450857e63211.50.0° NoneNone 70.0 +/- 5.0 km 2013-02-11
Q: model quality flag (0-5, 5=highest) | P: rotation period | λ,β: ecl. lon. and lat. of spin axis (J2000) | JD: initial time (epoch) | φ0: initial rotation angle for JD0

 
Image size: 300px. Transparent image background for copy & paste

Map with groundtrack and observer stations

Event Details 
 Occultation UUID [and DB] : d6df4b07-b50e-45dc-b348-b449f19bc67b [observed]

 Occultation Date + Time   : 2006-11-29 at 00:12:38 UT +/- 0.03 min  [1]
 Object Designation        : (578) Happelia
 Orbit Class               : MBA
 Star Designation          : GDR3 0886301484040536704
 Star Coordinates (ICRF)   : RA = 07 14 41.2213, DE = +29 52 38.568  [2]
 Star Magnitudes           : G = 11.16 mag, RP = 10.72 mag, BP = 11.42 mag
 Object Magnitude          : V = 14.77 mag
 Estimated Magnitude Drop  : 3.7 mag
 Estimated Max. Duration   : 7.4 sec
 Object Mean Diameter      : 69 km  (src: astorb)
 Speed of the shadow       : 9.4 km/s
 Elongation to Moon & Sun  : 120° (sunlit = 59%), Sun = 140°
 Cross-track uncertainty   : 7.4 mas = 13 km = 0.19 path-width (1-sig)
 RUWE and duplicate source : 0.88 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#136

 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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