Collaborative Occultation Resources and Archive (CORA)

2024-09-07 / UCAC4 546-036332 / (1328) Devota

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Michele Turchenko	O+	VID	M150	RU	GPS	00:48:37	00:49:39.98	00:49:42.53	00:50:51	0.05	0.05	2.55	77.0
2	show	Anton Zhdanov	O+	VID	M150	RU	GPS	00:48:33	00:49:40.30	00:49:42.63	00:50:50	0.03	0.02	2.33	70.4

UT1/UT4: Begin/End of observation | UT2/UT3: Begin/End of occultation | Dur: Reported duration in seconds | Chrd: Corresponding chord length in km | More

2 observations found in db: sodis

Available (probably) matching predictions (click on the link to switch):

JPL#80 : a0e64750-c354-11ef-5276-e24659fea4f1 [db: observed]

JPL#78 : af61eaa0-8709-11ef-78cd-0e2a397bfc45 [db: asteroids]

Using prediction a0e64750-c354-11ef-5276-e24659fea4f1 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 = -827.5, 8.2 km
Circular diameter = 88 km

From 2 chords (VID)

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: 2024-09-07, 00:49 UT (JD = 2460560.534)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 2515	1.5	17.107	312°, -20°	2.450773e6	9787.5	0.0°	None	2018-07-19	not scaled	2018-07-18
# 2516	1.5	17.107	132°, -32°	2.450773e6	9787.5	0.0°	None	2018-07-19	not scaled	2018-07-18

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] : a0e64750-c354-11ef-5276-e24659fea4f1 [observed] Occultation Date + Time : 2024-09-07 at 00:51:57 UT +/- 0.0 min [1] Object Designation : (1328) Devota Orbit Class : MBA Star Designation : GDR3 3364730465483140992 Star Coordinates (ICRF) : RA = 06 56 48.0113, DE = +19 07 51.283 [2] Star Magnitudes : G = 12.13 mag, RP = 11.25 mag, BP = 12.96 mag Object Magnitude : V = 16.2 mag Estimated Magnitude Drop : 4.1 mag Estimated Max. Duration : 1.9 sec Object Mean Diameter : 57.1 km (src: astorb) Speed of the shadow : 30.2 km/s Elongation to Moon & Sun : 104° (sunlit = 14%), Sun = 62° Cross-track uncertainty : 0.3 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.1 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#80 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : a0e64750-c354-11ef-5276-e24659fea4f1 [observed]

 Occultation Date + Time   : 2024-09-07 at 00:51:57 UT +/- 0.0 min  [1]
 Object Designation        : (1328) Devota
 Orbit Class               : MBA
 Star Designation          : GDR3 3364730465483140992
 Star Coordinates (ICRF)   : RA = 06 56 48.0113, DE = +19 07 51.283  [2]
 Star Magnitudes           : G = 12.13 mag, RP = 11.25 mag, BP = 12.96 mag
 Object Magnitude          : V = 16.2 mag
 Estimated Magnitude Drop  : 4.1 mag
 Estimated Max. Duration   : 1.9 sec
 Object Mean Diameter      : 57.1 km  (src: astorb)
 Speed of the shadow       : 30.2 km/s
 Elongation to Moon & Sun  : 104° (sunlit = 14%), Sun = 62°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.1 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#80

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

More Data and Informations

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