Collaborative Occultation Resources and Archive (CORA)

2025-02-26 / UCAC4 555-025270 / (888) Parysatis

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Gerard VAUDESCAL	O+	VID	T250	FR	GPS	20:33:48	20:34:43.1	20:34:46.3	20:36:05	0.2	0.2	3.20	26.9
2	show	Sergey Shurpakov	O+	VID	M200	BY	GPS	20:36:11	20:39:00.03	20:39:03.03	20:41:00	0.06	0.06	3.00	25.2

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#66 : 4a4963f0-8664-11ef-78cd-5589695da20a [db: asteroids]

Using prediction 4a4963f0-8664-11ef-78cd-5589695da20a 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 = 784.4, 31.1 km
Circular diameter = 30 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: 2025-02-26, 20:33 UT (JD = 2460733.356)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 5820	1.0	5.933	263°, -47°	2.457249e6	3484.4	0.0°	None	2020-10-05	not scaled	2019-10-23
# 5821	1.0	5.933	127°, -62°	2.457249e6	3484.4	0.0°	None	2020-10-05	not scaled	2019-10-23

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] : 4a4963f0-8664-11ef-78cd-5589695da20a [asteroids] Occultation Date + Time : 2025-02-26 at 20:30:16 UT +/- 0.01 min [1] Object Designation : (888) Parysatis Orbit Class : MBA Star Designation : GDR3 3376576878638811008 Star Coordinates (ICRF) : RA = 06 17 21.1523, DE = +20 54 18.199 [2] Star Magnitudes : G = 12.97 mag, RP = 12.01 mag, BP = 13.91 mag Object Magnitude : V = 13.51 mag Estimated Magnitude Drop : 1.1 mag Estimated Max. Duration : 5.3 sec Object Mean Diameter : 44.5 km (src: astorb) Speed of the shadow : 8.4 km/s Elongation to Moon & Sun : 131° (sunlit = 2%), Sun = 116° Cross-track uncertainty : 0.7 mas = 0 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#66 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : 4a4963f0-8664-11ef-78cd-5589695da20a [asteroids]

 Occultation Date + Time   : 2025-02-26 at 20:30:16 UT +/- 0.01 min  [1]
 Object Designation        : (888) Parysatis
 Orbit Class               : MBA
 Star Designation          : GDR3 3376576878638811008
 Star Coordinates (ICRF)   : RA = 06 17 21.1523, DE = +20 54 18.199  [2]
 Star Magnitudes           : G = 12.97 mag, RP = 12.01 mag, BP = 13.91 mag
 Object Magnitude          : V = 13.51 mag
 Estimated Magnitude Drop  : 1.1 mag
 Estimated Max. Duration   : 5.3 sec
 Object Mean Diameter      : 44.5 km  (src: astorb)
 Speed of the shadow       : 8.4 km/s
 Elongation to Moon & Sun  : 131° (sunlit = 2%), Sun = 116°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 1.04 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#66

 
 [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

(If error 404: link not valid which means no data available)

Aladin Sky Atlas
06 17 21.152 +20 54 18.20 FoV: 29.96' +– × × Go to:
Aladin Lite direct link (has Gaia overlay)