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2019-10-08 / 4UC 584-032969 / (118) Peitho

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show G. Casalnuovo et al O+ CCD L100 IT NTP 02:01:11 02:01:32.17 02:01:34.29 02:01:47 0.18 0.18 2.12 37.1
2 show Marian Urbanik O+ VID M252 SK GPS++ 02:01:29 02:02:06.77 02:02:09.26 02:02:31 0.1 0.1 2.49 43.6
3 show Peter Delincak O+ CCD M400 SK GPS++ 02:01:00 02:02:07.96 02:02:09.39 02:03:00 0.02 0.02 1.43 25.0
4 show Marcin Filipek O- VID M250 PL 01:58:30 02:06:00
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

4 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#93 : d7fd340a-58be-41e1-bf2c-fc7ab044a540 [db: observed]
JPL#93 : 1e1bf2a3-ec46-4d08-bb0e-89cb1965ffcf [db: observed]

Using prediction d7fd340a-58be-41e1-bf2c-fc7ab044a540 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:
Size = 58 x 37 km
a',b' = 29.0, 18.7 km
X0,Y0 = 435.2, 20.9 km
Mean diameter = 47 km

From 3 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.

Sky projection (artificial light) for occ. time: 2019-10-08, 02:00 UT (JD = 2458764.583)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 43973.07.806 179°, 60° 2.443482e615282.60.0° this pole agrees with occultation2020-05-06 not scaled 2020-04-26
# 44741.07.807 346°, 34° 2.457251e61513.60.0° None2020-10-05 not scaled 2019-10-23
# 44751.07.807 176°, 59° 2.457251e61513.60.0° None2020-10-05 not scaled 2019-10-23
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] : d7fd340a-58be-41e1-bf2c-fc7ab044a540 [observed]

 Occultation Date + Time   : 2019-10-08 at 02:04:01 UT +/- 0.01 min  [1]
 Object Designation        : (118) Peitho
 Orbit Class               : MBA
 Star Designation          : GDR3 3384964507387979648
 Star Coordinates (ICRF)   : RA = 06 44 06.1043, DE = +26 41 24.236  [2]
 Star Magnitudes           : G = 10.63 mag, RP = 9.75 mag, BP = 11.46 mag
 Object Magnitude          : V = 12.95 mag
 Estimated Magnitude Drop  : 2.4 mag
 Estimated Max. Duration   : 2.4 sec
 Object Mean Diameter      : 42 km  (src: astorb)
 Speed of the shadow       : 17.5 km/s
 Elongation to Moon & Sun  : 149° (sunlit = 73%), Sun = 95°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.01 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#93

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

More Data and Informations
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