Cora»Occultation

2023-08-24 / UCAC4 575-126296 / (387556) 2001 QW99

#	OBS	Observer	Occ	Meth.	Instr.	CC	TSRC	UT1	UT2	UT3	UT4	UT2E	UT3E	Dur.	Chrd
1	show	Peter Delincak	O-	VID	M400	SK	NTP	22:50:32			22:54:42

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

1 observation found in db: sodis

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

JPL#25 : f8d098b0-ddb3-11f0-547e-0061efbe4d78 [db: observed]

Using prediction f8d098b0-ddb3-11f0-547e-0061efbe4d78 for map and profile fit

Get observations as KML file (reduced site location resolution)

Map with groundtrack and observer stations

Event Details
Occultation UUID [and DB] : f8d098b0-ddb3-11f0-547e-0061efbe4d78 [observed] Occultation Date + Time : 2023-08-24 at 22:53:49 UT +/- 0.07 min [1] Object Designation : (387556) 2001 QW99 Orbit Class : MBA Star Designation : GDR3 1798490449662782592 Star Coordinates (ICRF) : RA = 21 27 50.0485, DE = +24 48 30.826 [2] Star Magnitudes : G = 14.2 mag, RP = 13.46 mag, BP = 14.81 mag Object Magnitude : V = 19.64 mag Estimated Magnitude Drop : 5.4 mag Estimated Max. Duration : 0.3 sec Object Mean Diameter : 2.9 km (src: astorb) Speed of the shadow : 11.1 km/s Elongation to Moon & Sun : 89° (sunlit = 56%), Sun = 143° Cross-track uncertainty : 29.0 mas = 39 km = 13.51 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#25 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and DB] : f8d098b0-ddb3-11f0-547e-0061efbe4d78 [observed] Occultation Date + Time : 2023-08-24 at 22:53:49 UT +/- 0.07 min [1] Object Designation : (387556) 2001 QW99 Orbit Class : MBA Star Designation : GDR3 1798490449662782592 Star Coordinates (ICRF) : RA = 21 27 50.0485, DE = +24 48 30.826 [2] Star Magnitudes : G = 14.2 mag, RP = 13.46 mag, BP = 14.81 mag Object Magnitude : V = 19.64 mag Estimated Magnitude Drop : 5.4 mag Estimated Max. Duration : 0.3 sec Object Mean Diameter : 2.9 km (src: astorb) Speed of the shadow : 11.1 km/s Elongation to Moon & Sun : 89° (sunlit = 56%), Sun = 143° Cross-track uncertainty : 29.0 mas = 39 km = 13.51 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#25 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

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

Aladin Sky Atlas

Loading sky atlas…

Aladin Lite direct link (has Gaia overlay)