Collaborative Occultation Resources and Archive (CORA)

2024-10-07 / TYC 5727-02200-1 / (550) Senta

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Martin Gutekunst	O+	VID	L280	DE	GPS	17:59:37	18:00:36.753	18:00:39.353	18:01:38	0.025	0.025	2.60	40.3
2	show	Jean-Francois Pittet	O+	VID	M254	DE	GPS	17:59:11	18:00:39.72	18:00:42.26	18:02:11	0.03	0.04	2.54	39.4
3	show	Peter Delincak	O+	VID	M400	SK	NTP	17:59:11	18:01:12.405	18:01:14.556	18:03:21	0.01	0.01	2.15	33.3
4	show	Petr Zeleny	O+	VID	M250	CZ	GPS	17:58:57	18:01:09.68	18:01:10.83	18:03:31	0.04	0.04	1.15	17.8
5	show	Daniel Blazewicz	O+	VID	M350	PL	GPS	18:00:49	18:01:20.393	18:01:20.687	18:01:53	0.014	0.014	0.29	4.5
6	show	Jiri Kubanek	O-	VID	M303	CZ	GPS	17:59:21			18:02:21

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

6 observations found in db: sodis

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

JPL#67 : bee2f0c0-85ea-11ef-78cd-83f4df55f844 [db: asteroids]

JPL#67 : a5158680-8284-11ef-6618-cf5df6ffac61 [db: asteroids]

Using prediction bee2f0c0-85ea-11ef-78cd-83f4df55f844 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:
Size = 70 x 38 km
a',b' = 34.9, 19.1 km
X0,Y0 = 608.4, 11.1 km
Mean diameter = 52 km

From 5 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: 2024-10-07, 18:00 UT (JD = 2460591.250)

DAMIT	Q	P (h)	λ, β	JD0	JD-JD0	φ0	Version	Modified	Vol-equiv D	Cmnt
# 774	None	20.573	63°, -40°	2.448504e6	12087.2	0.0°	None	None	not scaled	2013-10-15
# 775	None	20.573	258°, -58°	2.448504e6	12087.2	0.0°	None	None	not scaled	2013-10-15

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] : bee2f0c0-85ea-11ef-78cd-83f4df55f844 [asteroids] Occultation Date + Time : 2024-10-07 at 17:59:41 UT +/- 0.01 min [1] Object Designation : (550) Senta Orbit Class : MBA Star Designation : GDR3 4193161938138527488 Star Coordinates (ICRF) : RA = 19 38 55.0286, DE = -10 58 16.948 [2] Star Magnitudes : G = 11.99 mag, RP = 11.41 mag, BP = 12.4 mag Object Magnitude : V = 13.18 mag Estimated Magnitude Drop : 1.5 mag Estimated Max. Duration : 2.4 sec Object Mean Diameter : 37.8 km (src: astorb) Speed of the shadow : 15.5 km/s Elongation to Moon & Sun : 48° (sunlit = 21%), Sun = 100° Cross-track uncertainty : 2.0 mas = 2 km = 0.06 path-width (1-sig) RUWE and duplicate source : 0.96 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#67 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and DB] : bee2f0c0-85ea-11ef-78cd-83f4df55f844 [asteroids]

 Occultation Date + Time   : 2024-10-07 at 17:59:41 UT +/- 0.01 min  [1]
 Object Designation        : (550) Senta
 Orbit Class               : MBA
 Star Designation          : GDR3 4193161938138527488
 Star Coordinates (ICRF)   : RA = 19 38 55.0286, DE = -10 58 16.948  [2]
 Star Magnitudes           : G = 11.99 mag, RP = 11.41 mag, BP = 12.4 mag
 Object Magnitude          : V = 13.18 mag
 Estimated Magnitude Drop  : 1.5 mag
 Estimated Max. Duration   : 2.4 sec
 Object Mean Diameter      : 37.8 km  (src: astorb)
 Speed of the shadow       : 15.5 km/s
 Elongation to Moon & Sun  : 48° (sunlit = 21%), Sun = 100°
 Cross-track uncertainty   : 2.0 mas = 2 km = 0.06 path-width (1-sig)
 RUWE and duplicate source : 0.96 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#67

 
 [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
19 38 55.029 -10 58 16.95 FoV: 29.96' +– × × Go to:
Aladin Lite direct link (has Gaia overlay)