RECON: TNO occultation with 469442

Event between (469442) 02GG166 and star GA0580:24911723 with event index number of 1385523

Geocentric closest approach at 2024/07/25 06:13:47 UTC

J2000 position of star is 17:50:49.8 -30:17:45
Equinox of date position of star is 17:52:24.0 -30:18:03
Stellar brightness G=10.6, use SENSEUP=4 with the MallinCam and and exposure time of 125 milli-seconds with the QHY174 camera.
Star is 87 degrees from the moon. Moon is 81% illuminated.
Apparent brightness V=20.2

[RECON map]
Object is 15.3 AU from the Sun and 14.5 AU from the Earth.
Apparent velocity is 15.0 km/sec on the sky relative to the star, or, 5.2 arcsec/hr.
The 1-sigma error in the time of the event is 119 seconds.
The 1-sigma cross-track error in the shadow position is 592 km.
The sky-plane scale is 10494.1 km/arcsec.

The object has an absolute magnitude Hv=8.2
Diameter=136.1 km assuming a 5% albedo -- 9.1 sec chord
Diameter=55.6 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 469442, (2024/07/25 06:13UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:55.1 -26:29:04  0.9 18.30 105
34Ups Sco      17:32:26.2 -37:18:47  2.7  8.14  90
PPM 296839     17:50:46.3 -31:42:33  4.9  1.45  87
PPM 296917     17:53:46.3 -30:09:21  8.4  0.33  86
PPM 296900     17:53:08.5 -30:17:30  9.0  0.16  86
469442         17:52:24.5 -30:18:03 10.6        86
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 5.0 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.3 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 06:13:48 -15.4 AT Up 8.7 187.7 Really Low 06:03:25 - 06:24:10 6060
Kelowna 06:13:43 -16.4 AT Up 9.4 188.5 Really Low 06:03:21 - 06:24:06 6047
Peachland 06:13:45 -16.4 AT Up 9.5 188.2 Really Low 06:03:22 - 06:24:07 6045
Sleaford 06:12:47 -17.3 AT Up 5.2 199.8 Really Low 06:02:25 - 06:23:10 6042
Summerland 06:13:44 -16.6 AT Up 9.7 188.3 Really Low 06:03:22 - 06:24:07 6042
Penticton 06:13:43 -16.7 AT Up 9.7 188.4 Really Low 06:03:21 - 06:24:06 6041
Oliver 06:13:43 -17.0 AT Up 10.1 188.4 Really Low 06:03:20 - 06:24:05 6034
Anarchist Mountain Observatory 06:13:42 -17.2 AT Up 10.2 188.6 Really Low 06:03:20 - 06:24:05 6031
Okanogan 06:13:43 -17.7 AT Up 10.9 188.4 Really Low 06:03:20 - 06:24:05 6017
Brewster 06:13:43 -17.9 AT Up 11.2 188.3 Really Low 06:03:21 - 06:24:06 6011
Victoria 06:14:01 -16.3 AT Up 11.0 185.1 Really Low 06:03:38 - 06:24:23 6011
Manson/Chelan 06:13:44 -17.9 AT Up 11.4 187.9 Really Low 06:03:22 - 06:24:07 6006
Wenatchee 06:13:45 -18.3 Dark Up 11.9 187.8 Really Low 06:03:22 - 06:24:07 5995
Ellensburg 06:13:46 -18.6 Dark Up 12.3 187.6 Really Low 06:03:23 - 06:24:08 5985
Yakima 06:13:45 -19.0 Dark Up 12.7 187.6 Really Low 06:03:23 - 06:24:08 5976
Toppenish/White Swan 06:13:44 -19.2 Dark Up 12.9 187.8 Really Low 06:03:22 - 06:24:07 5970
PNWRO 06:13:38 -20.0 Dark Up 13.1 189.1 Really Low 06:03:16 - 06:24:01 5963
The Dalles 06:13:47 -19.6 Dark Up 13.8 187.1 Really Low 06:03:25 - 06:24:10 5949
Maupin 06:13:47 -20.0 Dark Up 14.2 187.2 Really Low 06:03:24 - 06:24:09 5938
Sisters 06:13:48 -20.6 Dark Up 15.1 186.8 Really Low 06:03:26 - 06:24:11 5913
Bend 06:13:47 -20.9 Dark Up 15.3 187.0 Really Low 06:03:24 - 06:24:09 5907
Oregon Observatory 06:13:47 -21.0 Dark Up 15.5 186.9 Really Low 06:03:25 - 06:24:10 5902
Chiloquin 06:13:48 -22.0 Dark Up 16.8 186.6 Really Low 06:03:26 - 06:24:11 5860
Klamath Falls 06:13:48 -22.3 Dark Up 17.2 186.7 Really Low 06:03:25 - 06:24:10 5849
Cedarville 06:13:38 -23.5 Dark Up 17.7 188.1 Really Low 06:03:16 - 06:24:01 5830
Fall River/Burney 06:13:44 -23.5 Dark Up 18.3 187.1 Really Low 06:03:22 - 06:24:07 5810
Gimple 06:13:41 -24.5 Dark Up 19.1 187.6 Really Low 06:03:18 - 06:24:03 5779
Greenville 06:13:42 -24.4 Dark Up 19.2 187.5 Really Low 06:03:19 - 06:24:04 5779
Quincy 06:13:41 -24.6 Dark Up 19.4 187.5 Really Low 06:03:19 - 06:24:04 5772
Portola 06:13:39 -24.9 Dark Up 19.4 187.9 Really Low 06:03:17 - 06:24:02 5769
Reno 06:13:38 -25.4 Dark Up 19.6 188.6 Really Low 06:03:16 - 06:24:01 5760
Carson City 06:13:38 -25.7 Dark Up 20.0 188.6 Really Low 06:03:16 - 06:24:01 5747
Yerington 06:13:38 -26.1 Dark Up 20.1 189.2 Low 06:03:16 - 06:24:01 5741
Gardnerville 06:13:38 -25.9 Dark Up 20.2 188.6 Low 06:03:16 - 06:24:01 5737
Dunrhomin 06:12:19 -28.9 Dark Up 16.1 201.1 Really Low 06:01:56 - 06:22:41 5731
Nikitin 06:12:18 -29.0 Dark Up 16.3 201.1 Really Low 06:01:56 - 06:22:41 5725
Hawthorne 06:13:38 -26.7 Dark Up 20.5 189.7 Low 06:03:16 - 06:24:01 5725
CU-SBO 06:12:18 -29.1 Dark Up 16.4 201.1 Really Low 06:01:56 - 06:22:41 5723
Lee Vining 06:13:38 -27.0 Dark Up 21.1 189.3 Low 06:03:16 - 06:24:01 5701
Bishop 06:13:24 -27.8 Dark Up 21.6 189.9 Low 06:03:02 - 06:23:47 5675
Beatty 06:13:15 -28.8 Dark Up 21.8 191.4 Low 06:02:52 - 06:23:37 5656
Patrick 06:12:57 -31.1 Dark Up 22.8 194.1 Low 06:02:34 - 06:23:19 5586
Laughlin/Bullhead City 06:13:01 -31.1 Dark Up 23.1 193.5 Low 06:02:38 - 06:23:23 5576
Lake Havasu City 06:12:59 -31.8 Dark Up 23.7 193.8 Low 06:02:36 - 06:23:21 5544
Wildwood 06:13:23 -30.6 Dark Up 24.9 190.0 Low 06:03:00 - 06:23:45 5530
Idyllwild 06:13:12 -31.6 Dark Up 24.9 191.7 Low 06:02:49 - 06:23:34 5514
George/Scottsdale 06:12:43 -33.3 Dark Up 24.0 196.1 Low 06:02:20 - 06:23:05 5499
Calipatria 06:13:04 -32.6 Dark Up 25.3 192.9 Low 06:02:41 - 06:23:26 5481
Yuma 06:12:58 -33.3 Dark Up 25.6 193.7 Low 06:02:36 - 06:23:21 5458

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 469442, (2024/07/25 06:13UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 18.30 105
34Ups Sco      17:30:45.8 -37:17:46  2.7  8.14  90
PPM 296839     17:49:10.5 -31:42:12  4.9  1.45  87
PPM 296917     17:52:11.7 -30:09:06  8.4  0.33  86
PPM 296900     17:51:33.8 -30:17:14  9.0  0.16  86
469442         17:50:49.8 -30:17:45 10.6        87
Positions are for J2000

Event circumstances last updated at 2024/06/11 03:48:55 UT

Marc W. Buie, Southwest Research Institute

RECON