RECON: TNO occultation with 10TH

Event between 10TH and star GA1000:01650640 with event index number of 2427306

Geocentric closest approach at 2023/02/11 08:53:08 UTC

J2000 position of star is 06:20:11.5 +10:17:06
Equinox of date position of star is 06:21:27.8 +10:16:24
Stellar brightness G=12.0, use SENSEUP=16 with the MallinCam and and exposure time of 250 milli-seconds with the QHY174 camera.
Star is 110 degrees from the moon. Moon is 73% illuminated.
Apparent brightness V=22.4

[RECON map]
Object is 19.9 AU from the Sun and 19.2 AU from the Earth.
Apparent velocity is 16.8 km/sec on the sky relative to the star, or, 4.3 arcsec/hr.
The 1-sigma error in the time of the event is 88 seconds.
The 1-sigma cross-track error in the shadow position is 1079 km.
The sky-plane scale is 13942.5 km/arcsec.

The object has an absolute magnitude Hv=9.3
Diameter=83.2 km assuming a 5% albedo -- 4.9 sec chord
Diameter=34.0 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 10TH, (2023/02/11 08:53UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:25.4 +07:24:34  0.4  6.82 115
Alhena         06:39:02.8 +16:22:39  1.9  7.45 106
75 Ori         06:18:23.1 +09:55:55  5.4  0.83 110
PPM 122272     06:20:20.3 +10:26:02  8.5  0.32 110
PPM 122268     06:20:15.6 +10:18:53 10.4  0.30 110
10TH           06:21:28.2 +10:16:24 12.0       109
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 9.3 km RECON observability=0.9 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 08:52:01 -47.6 Dark Up 18.4 263.1 Really Low 08:44:13 - 08:59:49 6258
Kamloops 08:52:10 -52.6 Dark Up 27.5 251.5 Low 08:44:22 - 08:59:58 5880
Kelowna 08:52:03 -53.3 Dark Up 27.2 252.7 Low 08:44:15 - 08:59:51 5875
Peachland 08:52:03 -53.4 Dark Up 27.4 252.5 Low 08:44:15 - 08:59:51 5864
Dunrhomin 08:50:47 -56.4 Dark Up 19.1 267.4 Really Low 08:42:59 - 08:58:35 5863
Penticton 08:52:02 -53.6 Dark Up 27.3 252.8 Low 08:44:14 - 08:59:50 5861
Summerland 08:52:02 -53.6 Dark Up 27.4 252.6 Low 08:44:14 - 08:59:50 5861
Nikitin 08:50:47 -56.6 Dark Up 19.1 267.5 Really Low 08:42:59 - 08:58:35 5854
CU-SBO 08:50:45 -56.7 Dark Up 19.2 267.4 Really Low 08:42:57 - 08:58:33 5849
Oliver 08:51:59 -54.0 Dark Up 27.5 252.9 Low 08:44:11 - 08:59:47 5848
Anarchist Mountain Observatory 08:51:59 -54.1 Dark Up 27.4 253.2 Low 08:44:11 - 08:59:47 5848
Okanogan 08:51:55 -54.7 Dark Up 27.7 253.3 Low 08:44:07 - 08:59:43 5817
Brewster 08:51:54 -55.0 Dark Up 27.9 253.3 Low 08:44:06 - 08:59:42 5801
Manson/Chelan 08:51:52 -55.3 Dark Up 28.2 253.0 Low 08:44:04 - 08:59:40 5783
Wenatchee 08:51:51 -55.8 Dark Up 28.5 253.1 Low 08:44:03 - 08:59:39 5759
PNWRO 08:51:39 -56.9 Dark Up 28.0 255.0 Low 08:43:51 - 08:59:27 5743
Ellensburg 08:51:48 -56.2 Dark Up 28.7 253.2 Low 08:44:00 - 08:59:36 5736
Yakima 08:51:45 -56.6 Dark Up 28.9 253.3 Low 08:43:57 - 08:59:33 5719
Toppenish/White Swan 08:51:44 -56.8 Dark Up 28.8 253.6 Low 08:43:56 - 08:59:32 5715
Victoria 08:52:02 -55.2 Dark Up 30.1 249.9 Up 08:44:14 - 08:59:50 5714
The Dalles 08:51:41 -57.7 Dark Up 29.6 253.4 Low 08:43:53 - 08:59:29 5658
Maupin 08:51:37 -58.1 Dark Up 29.7 253.7 Low 08:43:49 - 08:59:25 5644
Sisters 08:51:34 -59.0 Dark Up 30.2 253.7 Up 08:43:46 - 08:59:22 5590
Bend 08:51:32 -59.2 Dark Up 30.1 254.1 Up 08:43:44 - 08:59:20 5587
Oregon Observatory 08:51:31 -59.4 Dark Up 30.3 254.1 Up 08:43:43 - 08:59:19 5575
Cedarville 08:51:15 -61.4 Dark Up 30.0 256.3 Up 08:43:27 - 08:59:03 5502
Chiloquin 08:51:24 -60.8 Dark Up 31.0 254.4 Up 08:43:36 - 08:59:12 5499
Klamath Falls 08:51:23 -61.1 Dark Up 31.0 254.7 Up 08:43:35 - 08:59:11 5485
Fall River/Burney 08:51:15 -62.2 Dark Up 31.0 255.7 Up 08:43:27 - 08:59:03 5438
Reno 08:51:03 -63.2 Dark Up 30.2 257.7 Up 08:43:15 - 08:58:51 5412
Gimple 08:51:08 -62.9 Dark Up 30.9 256.6 Up 08:43:20 - 08:58:56 5409
Greenville 08:51:08 -62.9 Dark Up 30.9 256.5 Up 08:43:20 - 08:58:56 5406
Portola 08:51:05 -63.1 Dark Up 30.7 257.1 Up 08:43:17 - 08:58:53 5405
Yerington 08:50:58 -63.5 Dark Up 29.9 258.5 Low 08:43:10 - 08:58:46 5404
Hawthorne 08:50:55 -63.8 Dark Up 29.6 259.1 Low 08:43:07 - 08:58:43 5396
Quincy 08:51:07 -63.1 Dark Up 31.0 256.6 Up 08:43:19 - 08:58:55 5396
Carson City 08:51:01 -63.5 Dark Up 30.3 257.9 Up 08:43:13 - 08:58:49 5394
Gardnerville 08:50:59 -63.8 Dark Up 30.3 258.1 Up 08:43:11 - 08:58:47 5382
Patrick 08:50:30 -64.6 Dark Up 26.4 263.8 Low 08:42:42 - 08:58:18 5376
Beatty 08:50:43 -64.6 Dark Up 28.4 261.2 Low 08:42:55 - 08:58:31 5368
Lee Vining 08:50:53 -64.5 Dark Up 30.1 259.0 Up 08:43:05 - 08:58:41 5351
George/Scottsdale 08:50:17 -64.9 Dark Up 24.9 265.8 Low 08:42:29 - 08:58:05 5341
Bishop 08:50:48 -64.8 Dark Up 29.6 259.9 Low 08:43:00 - 08:58:36 5341
Laughlin/Bullhead City 08:50:28 -65.2 Dark Up 27.0 263.5 Low 08:42:40 - 08:58:16 5340
Lake Havasu City 08:50:25 -65.6 Dark Up 26.8 264.0 Low 08:42:37 - 08:58:13 5309
Yuma 08:50:15 -67.2 Dark Up 27.3 264.7 Low 08:42:27 - 08:58:03 5192
Calipatria 08:50:19 -67.3 Dark Up 28.0 263.9 Low 08:42:31 - 08:58:07 5189
Idyllwild 08:50:25 -67.4 Dark Up 28.9 262.9 Low 08:42:37 - 08:58:13 5188
Wildwood 08:50:30 -67.8 Dark Up 30.4 261.6 Up 08:42:42 - 08:58:18 5145

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 10TH, (2023/02/11 08:53UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  6.82 115
Alhena         06:37:42.8 +16:23:57  1.9  7.45 106
75 Ori         06:17:06.6 +09:56:31  5.4  0.83 110
PPM 122272     06:19:03.5 +10:26:41  8.5  0.32 110
PPM 122268     06:18:58.9 +10:19:33 10.4  0.30 110
10TH           06:20:11.5 +10:17:06 12.0       109
Positions are for J2000

Event circumstances last updated at 2023/01/07 03:18:54 UT

Marc W. Buie, Southwest Research Institute

RECON