RECON: TNO occultation with 03TH58

Event between 03TH58 and star GA0980:02081866 with event index number of 2003526

Geocentric closest approach at 2023/01/21 10:11:11 UTC

J2000 position of star is 06:38:02.2 +08:22:01
Equinox of date position of star is 06:39:13.5 +08:20:48
Stellar brightness G=15.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 155 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 36.7 AU from the Sun and 35.8 AU from the Earth.
The TNO is moving 23.7 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 168 seconds.
The 1-sigma cross-track error in the shadow position is 2394 km.
The sky-plane scale is 25944.8 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=194.1 km assuming a 5% albedo -- 9.2 sec chord
Diameter=79.2 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 03TH58, (2023/01/21 10:11UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:25.2 +07:24:34  0.4 10.66 147
Alhena         06:39:02.6 +16:22:40  1.9  8.03 161
14 Mon         06:36:01.3 +07:33:10  6.5  1.13 154
PPM 150933     06:39:41.7 +08:28:14  8.1  0.16 156
03TH58         06:39:17.5 +08:20:44 15.2       156
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 22.6 km RECON observability=1.0 and success probability=1.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 10:09:10 -51.4 Dark Down 28.9 246.1 Low 09:54:40 - 10:23:39 8028
Kelowna 10:09:08 -51.7 Dark Down 29.2 246.2 Low 09:54:39 - 10:23:38 7998
Peachland 10:09:09 -52.0 Dark Down 29.4 246.0 Low 09:54:39 - 10:23:38 7986
Summerland 10:09:09 -52.0 Dark Down 29.4 246.1 Low 09:54:39 - 10:23:38 7977
Penticton 10:09:08 -52.0 Dark Down 29.4 246.3 Low 09:54:38 - 10:23:37 7973
Oliver 10:09:07 -52.2 Dark Down 29.5 246.4 Low 09:54:37 - 10:23:36 7948
Anarchist Mountain Observatory 10:09:06 -52.2 Dark Down 29.5 246.7 Low 09:54:37 - 10:23:36 7938
Tonasket 10:09:05 -52.5 Dark Down 29.6 246.8 Low 09:54:36 - 10:23:35 7915
Okanogan 10:09:04 -52.8 Dark Down 29.9 246.8 Low 09:54:34 - 10:23:33 7888
Brewster 10:09:05 -53.0 Dark Down 30.1 246.8 Up 09:54:35 - 10:23:34 7865
Victoria 10:09:12 -54.5 Dark Down 32.1 243.3 Up 09:54:42 - 10:23:41 7851
Manson/Chelan 10:09:04 -53.4 Dark Down 30.4 246.6 Up 09:54:35 - 10:23:34 7845
Wenatchee 10:09:03 -53.8 Dark Down 30.7 246.7 Up 09:54:33 - 10:23:32 7807
Ellensburg 10:09:02 -54.1 Dark Down 31.0 246.7 Up 09:54:33 - 10:23:32 7773
Yakima 10:09:00 -54.4 Dark Down 31.2 246.9 Up 09:54:31 - 10:23:30 7742
Pasco 10:08:57 -53.8 Dark Down 30.4 248.4 Up 09:54:27 - 10:23:26 7735
Toppenish/White Swan 10:09:00 -54.4 Dark Down 31.2 247.2 Up 09:54:30 - 10:23:29 7728
PNWRO 10:08:56 -53.8 Dark Down 30.3 248.7 Up 09:54:26 - 10:23:25 7720
Goldendale 10:08:59 -55.0 Dark Down 31.6 247.1 Up 09:54:30 - 10:23:29 7680
The Dalles 10:08:59 -55.4 Dark Down 32.0 246.9 Up 09:54:30 - 10:23:29 7657
Maupin 10:08:58 -55.6 Dark Down 32.1 247.2 Up 09:54:28 - 10:23:27 7626
Redmond 10:08:54 -56.2 Dark Down 32.5 247.7 Up 09:54:25 - 10:23:24 7554
Sisters 10:08:56 -56.4 Dark Down 32.7 247.3 Up 09:54:27 - 10:23:26 7550
Bend 10:08:55 -56.4 Dark Down 32.7 247.7 Up 09:54:26 - 10:23:25 7535
Oregon Observatory 10:08:55 -56.6 Dark Down 32.8 247.7 Up 09:54:25 - 10:23:24 7519
La Pine/Gilchrist 10:08:54 -56.7 Dark Down 32.9 247.7 Up 09:54:25 - 10:23:24 7502
North Lake 10:08:52 -56.6 Dark Down 32.7 248.5 Up 09:54:22 - 10:23:21 7475
Dunrhomin 10:08:16 -47.3 Dark Down 22.2 262.0 Low 09:53:47 - 10:22:46 7459
Paisley 10:08:49 -56.7 Dark Down 32.7 249.1 Up 09:54:20 - 10:23:19 7436
Chiloquin 10:08:51 -57.6 Dark Down 33.6 248.1 Up 09:54:22 - 10:23:21 7407
Lakeview 10:08:48 -56.9 Dark Down 32.7 249.6 Up 09:54:18 - 10:23:17 7397
Klamath Falls 10:08:51 -57.7 Dark Down 33.7 248.4 Up 09:54:22 - 10:23:21 7380
Cedarville 10:08:45 -57.2 Dark Down 32.8 250.1 Up 09:54:16 - 10:23:15 7346
Fall River/Burney 10:08:46 -58.2 Dark Down 33.8 249.4 Up 09:54:17 - 10:23:16 7287
Susanville 10:08:43 -58.1 Dark Down 33.5 250.4 Up 09:54:14 - 10:23:13 7245
Gimple 10:08:43 -58.3 Dark Down 33.8 250.4 Up 09:54:14 - 10:23:13 7219
Greenville 10:08:44 -58.4 Dark Down 33.8 250.4 Up 09:54:14 - 10:23:13 7218
Quincy 10:08:43 -58.5 Dark Down 33.9 250.5 Up 09:54:13 - 10:23:12 7200
Portola 10:08:41 -58.2 Dark Down 33.6 250.9 Up 09:54:11 - 10:23:10 7197
Reno 10:08:39 -57.9 Dark Down 33.2 251.6 Up 09:54:10 - 10:23:09 7184
Carson City 10:08:38 -58.1 Dark Down 33.3 251.9 Up 09:54:09 - 10:23:08 7154
Yerington 10:08:36 -57.8 Dark Down 32.9 252.5 Up 09:54:06 - 10:23:05 7147
Gardnerville 10:08:37 -58.2 Dark Down 33.4 252.0 Up 09:54:08 - 10:23:07 7133
Hawthorne 10:08:34 -57.6 Dark Down 32.7 253.2 Up 09:54:04 - 10:23:03 7115
Tonopah 10:08:29 -56.8 Dark Down 31.8 254.5 Up 09:54:00 - 10:22:59 7096
Lee Vining 10:08:33 -58.2 Dark Down 33.2 253.1 Up 09:54:04 - 10:23:03 7059
Bishop 10:08:30 -58.0 Dark Down 32.8 254.0 Up 09:54:01 - 10:23:00 7017
Beatty 10:08:26 -57.0 Dark Down 31.7 255.5 Up 09:53:56 - 10:22:55 7002
Indian Springs 10:08:22 -56.3 Dark Down 31.0 256.5 Up 09:53:53 - 10:22:52 6990
Henderson 10:08:20 -55.9 Dark Down 30.5 257.3 Up 09:53:50 - 10:22:49 6953
Patrick 10:08:16 -55.3 Dark Down 29.8 258.4 Low 09:53:46 - 10:22:45 6915
Kingman/Dolan Springs 10:08:16 -55.5 Dark Down 30.0 258.4 Low 09:53:46 - 10:22:45 6893
Laughlin/Bullhead City 10:08:17 -55.9 Dark Down 30.4 258.0 Up 09:53:47 - 10:22:46 6882
Mohave Valley 10:08:16 -56.0 Dark Down 30.5 258.2 Up 09:53:47 - 10:22:46 6858
Lake Havasu City 10:08:14 -55.9 Dark Down 30.4 258.6 Up 09:53:44 - 10:22:43 6826
CPSLO 10:08:30 -60.5 Dark Down 35.2 253.7 Up 09:54:00 - 10:22:59 6799
George/Scottsdale 10:08:08 -54.1 Dark Down 28.5 260.6 Low 09:53:38 - 10:22:37 6795
Parker 10:08:14 -56.0 Dark Down 30.4 258.8 Up 09:53:44 - 10:22:43 6795
Blythe 10:08:12 -56.4 Dark Down 30.8 258.9 Up 09:53:43 - 10:22:42 6742
Wildwood 10:08:22 -59.4 Dark Down 33.9 256.0 Up 09:53:53 - 10:22:52 6722
Idyllwild 10:08:17 -58.0 Dark Down 32.4 257.5 Up 09:53:48 - 10:22:47 6720
Calipatria 10:08:13 -57.2 Dark Down 31.6 258.6 Up 09:53:44 - 10:22:43 6683
Yuma 10:08:11 -56.6 Dark Down 31.0 259.4 Up 09:53:41 - 10:22:40 6657

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 03TH58, (2023/01/21 10:11UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 10.66 147
Alhena         06:37:42.8 +16:23:57  1.9  8.03 161
14 Mon         06:34:46.3 +07:34:21  6.5  1.13 154
PPM 150933     06:38:26.3 +08:29:32  8.1  0.16 156
03TH58         06:38:02.2 +08:22:01 15.2       155
Positions are for J2000

Event circumstances last updated at 2021/10/27 00:02:29 UT

Marc W. Buie, Southwest Research Institute

RECON