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2022-01-19 / TYC 3376-01414-1 / (20755) 2000 BX6

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Philip Denyer O+ VID M235 UK GPS++ 23:41:14 23:43:11.13 23:43:12.77 23:44:18 0.04 0.04 1.64 22.5
2 show Derrick Ward O+ CCD M200 UK NTP 23:41:23 23:43:20.74 23:43:22.22 23:45:23 0.02 0.03 1.48 20.3
3 show Mark Fairfax O- CCD V112 UK 23:39:01 23:45:00
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#74 : 02183256-c325-4f5d-9d08-5398f50c42d2 [db: observed]

Using prediction 02183256-c325-4f5d-9d08-5398f50c42d2 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 = -10.3, 22.9 km
Circular diameter = 23 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.

Sky projection (artificial light) for occ. time: 2022-01-19, 23:42 UT (JD = 2459599.488)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 38461.013.110 268°, 43° 2.448949e610650.50.0° None2019-09-26 not scaled 2019-05-07
# 38471.013.110 54°, 62° 2.448949e610650.50.0° None2019-09-26 not scaled 2019-05-07
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] : 02183256-c325-4f5d-9d08-5398f50c42d2 [observed]

 Occultation Date + Time   : 2022-01-19 at 23:44:41 UT +/- 0.02 min  [1]
 Object Designation        : (20755) 2000 BX6
 Orbit Class               : MBA
 Star Designation          : GDR3 0965753843530461568
 Star Coordinates (ICRF)   : RA = 06 29 53.0572, DE = +46 05 35.488  [2]
 Star Magnitudes           : G = 10.77 mag, RP = 10.02 mag, BP = 11.37 mag
 Object Magnitude          : V = 18.41 mag
 Estimated Magnitude Drop  : 7.7 mag
 Estimated Max. Duration   : 0.7 sec
 Object Mean Diameter      : 9 km  (src: astorb)
 Speed of the shadow       : 13.7 km/s
 Elongation to Moon & Sun  : 49° (sunlit = 96%), Sun = 147°
 Cross-track uncertainty   : 1.0 mas = 1 km = 0.22 path-width (1-sig)
 RUWE and duplicate source : 1.08 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#74

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

More Data and Informations
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