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2023-04-03 / UCAC4 568-032214 / (468) Lina

#OBSObserverOccMeth.Instr.CC TSRCUT1UT2UT3UT4UT2EUT3EDur.Chrd
1 show Carles Schnabel O+ VID M400 ES GPS 22:03:45 22:05:34.3 22:05:37.5 22:06:09 0.3 0.03 3.20 54.4
2 show Antoni Selva O+ VID M500 ES GPS 22:03:40 22:05:33.900 22:05:37.900 22:07:39 0.3 0.3 4.00 68.0
3 show Bernat Garreta O+ CCD M200 ES NTP 22:03:44 2:05:27.6 2:05:32.1 22:07:33 0.5 0.5 4.50 76.5
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: sodis

Available (probably) matching predictions (click on the link to switch):
JPL#65 : 7f987848-6756-48fb-b3bd-75e96ed1cced [db: observed]

Using prediction 7f987848-6756-48fb-b3bd-75e96ed1cced 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: 2023-04-03, 22:04 UT (JD = 2460038.419)

DAMITQP (h)λ, βJD0JD-JD0φ0VersionModifiedVol-equiv DCmnt
# 30843.016.478 74°, 68° 2.44346e616578.40.0° None2019-06-25 69.0 +/- 8.0 km 2019-06-24
# 30853.016.478 255°, 68° 2.44346e616578.40.0° None2019-06-25 70.0 +/- 8.0 km 2019-06-24
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] : 7f987848-6756-48fb-b3bd-75e96ed1cced [observed]

 Occultation Date + Time   : 2023-04-03 at 22:01:37 UT +/- 0.01 min  [1]
 Object Designation        : (468) Lina
 Orbit Class               : MBA
 Star Designation          : GDR3 3379782612166686592
 Star Coordinates (ICRF)   : RA = 06 42 12.0465, DE = +23 31 50.514  [2]
 Star Magnitudes           : G = 15.06 mag, RP = 14.55 mag, BP = 15.4 mag
 Object Magnitude          : V = 16.0 mag
 Estimated Magnitude Drop  : 1.3 mag
 Estimated Max. Duration   : 4.1 sec
 Object Mean Diameter      : 69 km  (src: astorb)
 Speed of the shadow       : 17.0 km/s
 Elongation to Moon & Sun  : 68° (sunlit = 95%), Sun = 86°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#65

 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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