2023-05-28 / UCAC4 331-068098 / (762) Pulcova

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Jan Manek	O+	VID	M355	CZ	GPS	20:38:38	20:40:24.4	20:40:45.4	20:42:38	1.9	1.9	21.00	128.1
2	show	Anna Marciniak	O+	CCD	M350	PL	GPS	20:37:49	20:40:37.900	20:40:57.600	20:43:50	1.50	1.50	19.70	120.2
3	show	Alfonso Noschese	O-	VID	M300	IT	GPS	20:33:00			20:45:00
4	show	Gregor Krannich	O-	VID	M350	DE	GPS	20:38:41			20:42:40
5	show	Jiri Polak	O-	VID	M300	CZ	GPS	20:38:43			20:42:43

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

5 observations found in db: sodis

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

JPL#146 : aa747a10-ddb3-11f0-547e-48b2c7f79bef [db: observed]

Using prediction aa747a10-ddb3-11f0-547e-48b2c7f79bef for map and profile fit

Ellipse and circular profile fits to the timings (chords)

Auto-Fit Result: X0,Y0 = -2090.4, 5.3 km Circular diameter = 149 km From 2 chords (VID,CCD) Chords to ignore: Fill: Grid: Show (close) miss chords: 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: 2023-05-28, 20:40 UT (JD = 2460093.361)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 954	None	5.840	17°, -14°	2.450721e6	9372.4	0.0°	None	None	not scaled	2016-01-04
# 955	None	5.840	194°, -43°	2.450721e6	9372.4	0.0°	None	None	not scaled	2016-01-04

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

Map with groundtrack and observer stations

Event Details

Occultation UUID [and DB] : aa747a10-ddb3-11f0-547e-48b2c7f79bef [observed] Occultation Date + Time : 2023-05-28 at 20:24:39 UT +/- 0.1 min [1] Object Designation : (762) Pulcova Orbit Class : MBA Star Designation : GDR3 3501655745161485568 Star Coordinates (ICRF) : RA = 12 44 44.4198, DE = -23 52 56.752 [2] Star Magnitudes : G = 14.84 mag, RP = 14.32 mag, BP = 15.19 mag Object Magnitude : V = 13.5 mag Estimated Magnitude Drop : 0.3 mag Estimated Max. Duration : 22.7 sec Object Mean Diameter : 137.1 km (src: astorb) Speed of the shadow : 6.1 km/s Elongation to Moon & Sun : 36° (sunlit = 61%), Sun = 130° Cross-track uncertainty : 1.3 mas = 2 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#146 Note : FP:true [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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