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2016-09-27 / TYC 1876-02125-1 / (446) Aeternitas

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Antonio Vecchione O+ CCD M200 IT NTP 00:10:01 00:15:11.7 00:15:15.7 00:20:01 0.2 0.2 4.00 57.6
2 show Alfonso Noschese O+ CCD M235 IT GPS 00:13:18 00:15:12.5 00:15:15.1 00:17:18 0.2 0.2 2.60 37.4
3 show Marcin Filipek O- VIS M400 PL 00:15:00 00:19:00
UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

3 observations found in db: euraster

Available (probably) matching predictions (click on the link to switch):
JPL#107 : 53317608-470e-484d-97e7-a46e0edb13cd [db: observed]

Using prediction 53317608-470e-484d-97e7-a46e0edb13cd 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:
X0,Y0 = 1391.5, 39.2 km
Circular diameter = 75 km

From 2 chords (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: 2016-09-27, 00:15 UT (JD = 2457658.510)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 780None15.738 194°, 57° 2.454034e63624.50.0° NoneNone not scaled 2014-08-29
# 781None15.737 356°, 52° 2.454034e63624.50.0° NoneNone not scaled 2014-08-28
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] : 53317608-470e-484d-97e7-a46e0edb13cd [observed]

 Occultation Date + Time   : 2016-09-27 at 00:19:01 UT +/- 0.0 min  [1]
 Object Designation        : (446) Aeternitas
 Orbit Class               : MBA
 Star Designation          : GDR3 3437408802554078208
 Star Coordinates (ICRF)   : RA = 06 06 51.8601, DE = +29 03 09.143  [2]
 Star Magnitudes           : G = 11.66 mag, RP = 10.85 mag, BP = 12.34 mag
 Object Magnitude          : V = 14.3 mag
 Estimated Magnitude Drop  : 2.7 mag
 Estimated Max. Duration   : 3.2 sec
 Object Mean Diameter      : 45 km  (src: astorb)
 Speed of the shadow       : 14.4 km/s
 Elongation to Moon & Sun  : 48° (sunlit = 15%), Sun = 93°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 0.91 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#107

 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
SiMDA | 3D Asteroid Catalogue | Johnston Archive | Star at CDS (Vizier) | JPL Small-Body Node | Minor Planet Center | Wikipedia
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