RECON: TNO occultation with 03UP292

Event between 03UP292 and star GA1240:02403637 with event index number of 1339189

Geocentric closest approach at 2023/12/18 09:59:41 UTC

J2000 position of star is 06:00:00.4 +35:24:26
Equinox of date position of star is 06:01:36.4 +35:24:25
Stellar brightness G=16.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 112 degrees from the moon. Moon is 35% illuminated.
Apparent brightness V=21.9

[RECON map]
Object is 29.8 AU from the Sun and 28.9 AU from the Earth.
Apparent velocity is 24.0 km/sec on the sky relative to the star, or, 4.1 arcsec/hr.
The 1-sigma error in the time of the event is 142 seconds.
The 1-sigma cross-track error in the shadow position is 1140 km.
The sky-plane scale is 20945.3 km/arcsec.

The object has an absolute magnitude Hv=7.2
Diameter=217.8 km assuming a 5% albedo -- 9.1 sec chord
Diameter=88.9 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is 2:1E
 
 
 
 
 
 

Star training set for 03UP292, (2023/12/18 10:00UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:46.9 +27:57:59  1.1 23.49 135
34Bet Aur      06:01:17.3 +44:56:50  1.9  9.54 111
PPM 071196     06:07:08.9 +33:35:43  6.1  2.14 113
PPM 071098     06:02:04.9 +35:18:41  8.2  0.13 112
03UP292        06:01:36.9 +35:24:25 16.6       112
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 29.3 km RECON observability=1.0 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)
Sleaford 09:58:00 -45.7 Dark Down 57.0 255.7 Up 09:45:42 - 10:10:17 7701
Kamloops 09:58:32 -54.1 Dark Down 65.8 240.9 Up 09:46:14 - 10:10:49 7214
Kelowna 09:58:27 -54.1 Dark Down 65.7 243.7 Up 09:46:09 - 10:10:44 7151
Peachland 09:58:28 -54.3 Dark Down 65.9 243.5 Up 09:46:11 - 10:10:46 7133
Summerland 09:58:28 -54.4 Dark Down 65.9 244.0 Up 09:46:10 - 10:10:45 7120
Penticton 09:58:28 -54.4 Dark Down 65.9 244.3 Up 09:46:10 - 10:10:45 7116
Oliver 09:58:27 -54.6 Dark Down 66.1 245.0 Up 09:46:10 - 10:10:45 7080
Anarchist Mountain Observatory 09:58:26 -54.6 Dark Down 66.0 245.6 Up 09:46:09 - 10:10:44 7067
Okanogan 09:58:26 -55.1 Dark Down 66.4 246.6 Up 09:46:08 - 10:10:43 6997
Brewster 09:58:26 -55.3 Dark Down 66.6 246.9 Up 09:46:08 - 10:10:43 6965
Manson/Chelan 09:58:26 -55.6 Dark Down 67.0 246.9 Up 09:46:08 - 10:10:43 6936
Victoria 09:58:36 -57.0 Dark Down 68.6 240.7 Up 09:46:19 - 10:10:54 6934
Wenatchee 09:58:26 -56.0 Dark Down 67.2 247.7 Up 09:46:08 - 10:10:43 6883
Ellensburg 09:58:26 -56.4 Dark Down 67.5 248.3 Up 09:46:08 - 10:10:43 6836
Yakima 09:58:25 -56.6 Dark Down 67.7 249.2 Up 09:46:08 - 10:10:43 6794
Toppenish/White Swan 09:58:25 -56.6 Dark Down 67.7 249.9 Up 09:46:07 - 10:10:42 6775
PNWRO 09:58:19 -56.0 Dark Down 66.8 252.6 Up 09:46:02 - 10:10:37 6772
The Dalles 09:58:25 -57.5 Dark Down 68.4 250.7 Up 09:46:08 - 10:10:43 6677
Maupin 09:58:24 -57.7 Dark Down 68.5 251.8 Up 09:46:07 - 10:10:42 6636
Dunrhomin 09:57:30 -48.7 Dark Down 57.6 274.8 Up 09:45:13 - 10:09:48 6591
Nikitin 09:57:30 -48.7 Dark Down 57.6 275.0 Up 09:45:13 - 10:09:48 6572
CU-SBO 09:57:30 -48.8 Dark Down 57.6 275.1 Up 09:45:13 - 10:09:48 6563
Sisters 09:58:25 -58.4 Dark Down 69.1 253.4 Up 09:46:07 - 10:10:42 6534
Bend 09:58:23 -58.4 Dark Down 69.0 254.3 Up 09:46:06 - 10:10:41 6515
Oregon Observatory 09:58:23 -58.6 Dark Down 69.1 254.6 Up 09:46:06 - 10:10:41 6494
Chiloquin 09:58:23 -59.5 Dark Down 69.7 257.5 Up 09:46:05 - 10:10:40 6347
Klamath Falls 09:58:22 -59.6 Dark Down 69.8 258.5 Up 09:46:05 - 10:10:40 6312
Cedarville 09:58:16 -58.9 Dark Down 68.7 261.9 Up 09:45:58 - 10:10:33 6277
Fall River/Burney 09:58:19 -60.0 Dark Down 69.7 262.0 Up 09:46:02 - 10:10:37 6197
Gimple 09:58:16 -60.0 Dark Down 69.4 264.9 Up 09:45:59 - 10:10:34 6114
Greenville 09:58:16 -60.1 Dark Down 69.5 264.8 Up 09:45:59 - 10:10:34 6112
Quincy 09:58:16 -60.1 Dark Down 69.5 265.3 Up 09:45:59 - 10:10:34 6091
Portola 09:58:14 -59.9 Dark Down 69.1 266.0 Up 09:45:57 - 10:10:32 6089
Reno 09:58:12 -59.5 Dark Down 68.7 267.2 Up 09:45:54 - 10:10:29 6078
Carson City 09:58:12 -59.6 Dark Down 68.7 268.2 Up 09:45:54 - 10:10:29 6040
Yerington 09:58:09 -59.3 Dark Down 68.2 269.1 Up 09:45:52 - 10:10:27 6036
Gardnerville 09:58:11 -59.7 Dark Down 68.6 268.8 Up 09:45:53 - 10:10:28 6016
Hawthorne 09:58:07 -59.0 Dark Down 67.8 270.5 Up 09:45:49 - 10:10:24 6001
Lee Vining 09:58:08 -59.6 Dark Down 68.1 271.7 Up 09:45:50 - 10:10:25 5929
Bishop 09:58:05 -59.2 Dark Down 67.5 273.5 Up 09:45:47 - 10:10:22 5885
Beatty 09:57:58 -58.1 Dark Down 66.2 275.3 Up 09:45:41 - 10:10:16 5882
Patrick 09:57:47 -56.2 Dark Down 63.8 279.5 Up 09:45:29 - 10:10:04 5813
Laughlin/Bullhead City 09:57:49 -56.9 Dark Down 64.3 279.8 Up 09:45:31 - 10:10:06 5765
Lake Havasu City 09:57:47 -56.8 Dark Down 64.0 281.2 Up 09:45:29 - 10:10:04 5703
George/Scottsdale 09:57:38 -54.9 Dark Down 61.8 283.3 Up 09:45:20 - 10:09:55 5702
Idyllwild 09:57:54 -58.8 Dark Down 65.7 282.4 Up 09:45:36 - 10:10:11 5551
Wildwood 09:58:00 -60.3 Dark Down 67.3 281.2 Up 09:45:43 - 10:10:18 5535
Calipatria 09:57:49 -58.0 Dark Down 64.6 283.8 Up 09:45:31 - 10:10:06 5523
Yuma 09:57:45 -57.3 Dark Down 63.8 284.8 Up 09:45:28 - 10:10:03 5506

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 03UP292, (2023/12/18 10:00UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 23.49 135
34Bet Aur      05:59:31.6 +44:56:51  1.9  9.54 111
PPM 071196     06:05:34.0 +33:35:57  6.1  2.14 113
PPM 071098     06:00:28.5 +35:18:44  8.2  0.13 112
03UP292        06:00:00.4 +35:24:26 16.6       112
Positions are for J2000

Event circumstances last updated at 2023/11/04 04:07:27 UT

Marc W. Buie, Southwest Research Institute

RECON