RECON: TNO occultation with 03QJ91

Event between 03QJ91 and star GA0800:21800039 with event index number of 1269636

Geocentric closest approach at 2023/08/26 06:17:05 UTC

J2000 position of star is 22:53:37.2 -09:44:24
Equinox of date position of star is 22:54:45.7 -09:37:25
Stellar brightness G=14.1, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 75 degrees from the moon. Moon is 70% illuminated.
TNO apparent brightness V=23.2

[RECON map]
TNO is 44.1 AU from the Sun and 43.1 AU from the Earth.
The TNO is moving 24.7 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 328 seconds.
The 1-sigma cross-track error in the shadow position is 4144 km.
The sky-plane scale is 31288.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.8
Diameter=271.7 km assuming a 5% albedo -- 10.6 sec chord
Diameter=110.9 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 03QJ91, (2023/08/26 06:17UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:57.1 -29:29:47  1.2 19.91  68
70 Aqr         22:49:44.8 -10:25:48  6.2  1.50  73
PPM 240876     22:54:01.2 -09:55:58  6.9  0.38  75
PPM 206890     22:54:37.8 -09:34:14  9.7  0.07  75
03QJ91         22:54:51.5 -09:36:50 14.1        75
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 2.7 sigma about the mid-time.
The median site spacing is 11.9 km RECON observability=1.0 and success probability=6.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 06:17:20 -25.5 Dark Up 22.7 138.6 Low 06:02:20 - 06:32:20 52
Clarence Fulton 06:17:06 -25.3 Dark Up 23.0 143.0 Low 06:02:06 - 06:32:06 48
Peachland 06:17:09 -25.6 Dark Up 23.3 142.4 Low 06:02:09 - 06:32:09 38
Kelowna 06:17:08 -25.6 Dark Up 23.3 142.8 Low 06:02:08 - 06:32:08 37
Summerland 06:17:09 -25.8 Dark Up 23.4 142.5 Low 06:02:09 - 06:32:09 31
Penticton 06:17:09 -25.9 Dark Up 23.5 142.6 Low 06:02:09 - 06:32:09 27
Oliver 06:17:10 -26.2 Dark Up 23.8 142.5 Low 06:02:10 - 06:32:10 14
Anarchist Mountain Observatory 06:17:10 -26.4 Dark Up 24.0 142.6 Low 06:02:10 - 06:32:10 5
Tonasket 06:17:11 -26.6 Dark Up 24.2 142.5 Low 06:02:11 - 06:32:11 -6
Okanogan 06:17:12 -26.9 Dark Up 24.4 142.2 Low 06:02:12 - 06:32:12 -16
Brewster 06:17:13 -27.1 Dark Up 24.6 142.0 Low 06:02:13 - 06:32:13 -23
Manson/Chelan 06:17:15 -27.1 Dark Up 24.6 141.6 Low 06:02:15 - 06:32:15 -25
Wenatchee 06:17:16 -27.5 Dark Up 24.9 141.3 Low 06:02:16 - 06:32:16 -41
Ellensburg 06:17:18 -27.8 Dark Up 25.1 140.9 Low 06:02:18 - 06:32:18 -53
Yakima 06:17:19 -28.1 Dark Up 25.4 140.8 Low 06:02:19 - 06:32:19 -70
Toppenish/White Swan 06:17:19 -28.4 Dark Up 25.7 140.9 Low 06:02:19 - 06:32:19 -82
Goldendale 06:17:22 -28.7 Dark Up 25.9 140.3 Low 06:02:22 - 06:32:22 -97
The Dalles 06:17:23 -28.8 Dark Up 25.9 139.9 Low 06:02:23 - 06:32:23 -101
Pasco 06:17:16 -28.9 Dark Up 26.3 142.1 Low 06:02:16 - 06:32:16 -109
Maupin 06:17:24 -29.2 Dark Up 26.3 139.9 Low 06:02:24 - 06:32:24 -120
PNWRO 06:17:17 -29.2 Dark Up 26.6 142.3 Low 06:02:17 - 06:32:17 -124
Sisters 06:17:28 -29.7 Dark Up 26.7 139.1 Low 06:02:28 - 06:32:28 -150
Redmond 06:17:27 -29.9 Dark Up 26.9 139.5 Low 06:02:27 - 06:32:27 -158
Bend 06:17:28 -30.0 Dark Up 27.0 139.3 Low 06:02:28 - 06:32:28 -165
Oregon Observatory 06:17:29 -30.1 Dark Up 27.1 139.1 Low 06:02:29 - 06:32:29 -171
La Pine/Gilchrist 06:17:29 -30.3 Dark Up 27.2 139.0 Low 06:02:29 - 06:32:29 -179
North Lake 06:17:29 -30.9 Dark Up 27.9 139.4 Low 06:02:29 - 06:32:29 -210
Chiloquin 06:17:34 -31.1 Dark Up 27.9 138.3 Low 06:02:34 - 06:32:34 -225
Paisley 06:17:30 -31.5 Dark Up 28.4 139.6 Low 06:02:30 - 06:32:30 -242
Klamath Falls 06:17:34 -31.4 Dark Up 28.2 138.2 Low 06:02:34 - 06:32:34 -242
Lakeview 06:17:31 -32.0 Dark Up 28.9 139.6 Low 06:02:31 - 06:32:31 -270
Cedarville 06:17:32 -32.6 Dark Up 29.5 139.6 Low 06:02:32 - 06:32:32 -306
Fall River/Burney 06:17:36 -32.6 Dark Up 29.3 138.2 Low 06:02:36 - 06:32:36 -308
Susanville 06:17:36 -33.4 Dark Up 30.1 138.7 Up 06:02:36 - 06:32:36 -353
Greenville 06:17:38 -33.5 Dark Up 30.2 138.3 Up 06:02:38 - 06:32:38 -362
Gimple 06:17:37 -33.6 Dark Up 30.2 138.4 Up 06:02:37 - 06:32:37 -364
Quincy 06:17:39 -33.7 Dark Up 30.3 138.2 Up 06:02:39 - 06:32:39 -373
Portola 06:17:37 -34.0 Dark Up 30.7 138.6 Up 06:02:37 - 06:32:37 -388
Reno 06:17:36 -34.5 Dark Up 31.2 139.2 Up 06:02:36 - 06:32:36 -415
Carson City 06:17:37 -34.8 Dark Up 31.5 139.0 Up 06:02:37 - 06:32:37 -435
Gardnerville 06:17:38 -35.0 Dark Up 31.7 139.0 Up 06:02:38 - 06:32:38 -449
Yerington 06:17:36 -35.2 Dark Up 32.0 139.6 Up 06:02:36 - 06:32:36 -458
Hawthorne 06:17:36 -35.8 Dark Up 32.6 139.9 Up 06:02:36 - 06:32:36 -495
Lee Vining 06:17:38 -36.1 Dark Up 32.8 139.2 Up 06:02:38 - 06:32:38 -515
Tonopah 06:17:33 -36.8 Dark Up 33.6 141.2 Up 06:02:33 - 06:32:33 -550
Bishop 06:17:38 -36.9 Dark Up 33.6 139.7 Up 06:02:38 - 06:32:38 -565
Beatty 06:17:35 -38.0 Dark Up 34.8 141.2 Up 06:02:35 - 06:32:35 -627
CPSLO 06:17:50 -37.7 Dark Up 33.9 136.6 Up 06:02:50 - 06:32:50 -639
Indian Springs 06:17:32 -38.7 Dark Up 35.6 142.1 Up 06:02:32 - 06:32:32 -671
Dunrhomin 06:16:52 -38.2 Dark Up 36.7 155.0 Up 06:01:52 - 06:31:52 -715
Henderson 06:17:31 -39.4 Dark Up 36.3 142.6 Up 06:02:31 - 06:32:31 -719
Wildwood 06:17:47 -39.7 Dark Up 36.0 138.0 Up 06:02:47 - 06:32:47 -756
Laughlin/Bullhead City 06:17:32 -40.3 Dark Up 37.2 142.7 Up 06:02:32 - 06:32:32 -782
Patrick 06:17:29 -40.4 Dark Up 37.4 143.5 Up 06:02:29 - 06:32:29 -783
Kingman/Dolan Springs 06:17:30 -40.5 Dark Up 37.5 143.2 Up 06:02:30 - 06:32:30 -792
Mohave Valley 06:17:33 -40.6 Dark Up 37.4 142.5 Up 06:02:33 - 06:32:33 -799
Idyllwild 06:17:42 -40.8 Dark Up 37.3 139.8 Up 06:02:42 - 06:32:42 -820
Lake Havasu City 06:17:33 -41.0 Dark Up 37.9 142.6 Up 06:02:33 - 06:32:33 -830
Parker 06:17:34 -41.4 Dark Up 38.2 142.5 Up 06:02:34 - 06:32:34 -853
Blythe 06:17:36 -41.7 Dark Up 38.4 141.9 Up 06:02:36 - 06:32:36 -879
Calipatria 06:17:40 -41.8 Dark Up 38.3 140.7 Up 06:02:40 - 06:32:40 -888
Yuma 06:17:38 -42.5 Dark Up 39.2 141.4 Up 06:02:38 - 06:32:38 -938
George/Scottsdale 06:17:27 -42.6 Dark Up 39.7 144.9 Up 06:02:27 - 06:32:27 -940

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 03QJ91, (2023/08/26 06:17UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 19.91  68
70 Aqr         22:48:30.3 -10:33:20  6.2  1.50  73
PPM 240876     22:52:46.9 -10:03:32  6.9  0.38  75
PPM 206890     22:53:23.6 -09:41:48  9.7  0.07  75
03QJ91         22:53:37.2 -09:44:24 14.1        75
Positions are for J2000

Event circumstances last updated at 2021/10/27 00:03:12 UT

Marc W. Buie, Southwest Research Institute

RECON