RECON: TNO occultation with 523746

Event between (523746) 14UT114 and star GA1240:02799794 with event index number of 2322842

Geocentric closest approach at 2022/10/02 07:17:02 UTC

J2000 position of star is 06:36:43.8 +34:11:42
Equinox of date position of star is 06:38:14.1 +34:10:28
Stellar brightness G=16.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 169 degrees from the moon. Moon is 42% illuminated.
TNO apparent brightness V=21.3

[RECON map]
TNO is 16.0 AU from the Sun and 16.0 AU from the Earth.
The TNO is moving 8.6 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 508 seconds.
The 1-sigma cross-track error in the shadow position is 3317 km.
The sky-plane scale is 11601.0 km/arcsec.

The TNO has an absolute magnitude Hv=8.9
Diameter=95.5 km assuming a 5% albedo -- 11.4 sec chord
Diameter=39.0 km assuming a 30% albedo -- 4.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 523746, (2022/10/02 07:17UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:42.4 +27:58:10  1.1 15.89 156
34Bet Aur      06:01:11.9 +44:56:50  1.9 12.90 162
PPM 071742     06:33:56.2 +32:26:12  6.0  1.96 171
PPM 071848     06:38:05.7 +33:22:12  8.4  0.80 170
PPM 071833     06:37:31.7 +34:10:41  8.8  0.15 169
523746         06:38:14.1 +34:10:28 16.2       169
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 1.8 sigma about the mid-time.
The median site spacing is **** km RECON observability=0.1 and success probability=6.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 07:13:10 -43.8 Dark Down 17.2 57.4 Really Low 06:58:10 - 07:28:10 2288
Kamloops 07:13:23 -42.3 Dark Down 20.0 60.0 Really Low 06:58:23 - 07:28:23 2222
Peachland 07:13:11 -43.2 Dark Down 19.8 60.1 Really Low 06:58:11 - 07:28:11 2192
Summerland 07:13:09 -43.4 Dark Down 19.8 60.1 Really Low 06:58:09 - 07:28:09 2187
Kelowna 07:13:11 -43.2 Dark Down 20.1 60.3 Low 06:58:11 - 07:28:11 2184
Penticton 07:13:08 -43.5 Dark Down 19.8 60.2 Really Low 06:58:08 - 07:28:08 2183
Oliver 07:13:04 -43.8 Dark Down 19.6 60.0 Really Low 06:58:04 - 07:28:04 2178
Manson/Chelan 07:12:52 -45.0 Dark Down 18.6 59.2 Really Low 06:57:52 - 07:27:52 2178
Ellensburg 07:12:44 -45.8 Dark Down 17.9 58.7 Really Low 06:57:44 - 07:27:44 2176
Wenatchee 07:12:47 -45.4 Dark Down 18.3 59.0 Really Low 06:57:47 - 07:27:47 2176
The Dalles 07:12:31 -47.0 Dark Down 16.8 57.9 Really Low 06:57:31 - 07:27:31 2171
Anarchist Mountain Observatory 07:13:02 -44.0 Dark Down 19.7 60.1 Really Low 06:58:02 - 07:28:02 2170
Yakima 07:12:39 -46.2 Dark Down 17.7 58.6 Really Low 06:57:39 - 07:27:39 2169
Brewster 07:12:53 -44.9 Dark Down 18.9 59.5 Really Low 06:57:53 - 07:27:53 2169
Tonasket 07:12:59 -44.3 Dark Down 19.5 59.9 Really Low 06:57:59 - 07:27:59 2167
Okanogan 07:12:56 -44.6 Dark Down 19.2 59.7 Really Low 06:57:56 - 07:27:56 2167
Goldendale 07:12:33 -46.9 Dark Down 17.1 58.2 Really Low 06:57:33 - 07:27:33 2164
Maupin 07:12:26 -47.4 Dark Down 16.6 57.9 Really Low 06:57:26 - 07:27:26 2160
Toppenish/White Swan 07:12:37 -46.4 Dark Down 17.7 58.6 Really Low 06:57:37 - 07:27:37 2160
Sisters 07:12:18 -48.2 Dark Down 15.8 57.3 Really Low 06:57:18 - 07:27:18 2159
Oregon Observatory 07:12:14 -48.6 Dark Down 15.7 57.3 Really Low 06:57:14 - 07:27:14 2146
Bend 07:12:15 -48.5 Dark Down 15.8 57.4 Really Low 06:57:15 - 07:27:15 2146
Chiloquin 07:12:03 -49.8 Dark Down 14.7 56.7 Really Low 06:57:03 - 07:27:03 2131
Klamath Falls 07:11:58 -50.1 Dark Down 14.5 56.7 Really Low 06:56:58 - 07:26:58 2120
North Lake 07:12:06 -49.3 Dark Down 15.6 57.4 Really Low 06:57:06 - 07:27:06 2114
PNWRO 07:12:28 -47.0 Dark Down 18.3 59.4 Really Low 06:57:28 - 07:27:28 2103
Fall River/Burney 07:11:45 -51.3 Dark Down 14.1 56.6 Really Low 06:56:45 - 07:26:45 2076
Lakeview 07:11:52 -50.4 Dark Down 15.4 57.5 Really Low 06:56:52 - 07:26:52 2069
Cedarville 07:11:45 -51.1 Dark Down 15.1 57.4 Really Low 06:56:45 - 07:26:45 2046
Greenville 07:11:33 -52.3 Dark Down 13.8 56.7 Really Low 06:56:33 - 07:26:33 2036
Susanville 07:11:35 -52.1 Dark Down 14.2 56.9 Really Low 06:56:35 - 07:26:35 2033
Gimple 07:11:33 -52.3 Dark Down 13.9 56.7 Really Low 06:56:33 - 07:26:33 2033
Quincy 07:11:32 -52.5 Dark Down 13.7 56.6 Really Low 06:56:32 - 07:26:32 2030
Portola 07:11:28 -52.7 Dark Down 13.9 56.8 Really Low 06:56:28 - 07:26:28 2009
Reno 07:11:23 -53.1 Dark Down 14.2 57.1 Really Low 06:56:23 - 07:26:23 1978
Carson City 07:11:19 -53.4 Dark Down 14.0 57.0 Really Low 06:56:19 - 07:26:19 1966
Gardnerville 07:11:17 -53.7 Dark Down 13.9 57.0 Really Low 06:56:17 - 07:26:17 1957
Yerington 07:11:15 -53.7 Dark Down 14.3 57.3 Really Low 06:56:15 - 07:26:15 1936
Lee Vining 07:11:04 -54.7 Dark Down 13.7 57.1 Really Low 06:56:04 - 07:26:04 1903
Hawthorne 07:11:09 -54.3 Dark Down 14.4 57.5 Really Low 06:56:09 - 07:26:09 1901
Bishop 07:10:57 -55.4 Dark Down 13.9 57.3 Really Low 06:55:57 - 07:25:57 1854
Tonopah 07:10:59 -55.0 Dark Down 15.0 58.1 Really Low 06:55:59 - 07:25:59 1832
Beatty 07:10:46 -56.2 Dark Down 14.7 58.0 Really Low 06:55:46 - 07:25:46 1773
Sleaford 07:13:09 -41.3 Dark Down 28.7 70.1 Low 06:58:09 - 07:28:09 1753
Wildwood 07:10:26 -58.5 Dark Down 11.9 56.6 Really Low 06:55:26 - 07:25:26 1743
Indian Springs 07:10:39 -56.7 Dark Down 15.3 58.5 Really Low 06:55:39 - 07:25:39 1717
Henderson 07:10:32 -57.3 Dark Down 15.4 58.7 Really Low 06:55:32 - 07:25:32 1668
Idyllwild 07:10:14 -59.3 Dark Down 13.0 57.3 Really Low 06:55:14 - 07:25:14 1652
Laughlin/Bullhead City 07:10:21 -58.2 Dark Down 15.2 58.6 Really Low 06:55:21 - 07:25:21 1617
Mohave Valley 07:10:18 -58.4 Dark Down 15.1 58.6 Really Low 06:55:18 - 07:25:18 1606
Patrick 07:10:21 -58.0 Dark Down 15.9 59.0 Really Low 06:55:21 - 07:25:21 1596
Kingman/Dolan Springs 07:10:20 -58.2 Dark Down 15.6 58.9 Really Low 06:55:20 - 07:25:20 1596
Lake Havasu City 07:10:13 -58.9 Dark Down 15.0 58.6 Really Low 06:55:13 - 07:25:13 1579
Calipatria 07:10:04 -60.1 Dark Down 13.4 57.7 Really Low 06:55:04 - 07:25:04 1575
Parker 07:10:10 -59.2 Dark Down 14.9 58.5 Really Low 06:55:10 - 07:25:10 1563
Yuma 07:09:57 -60.6 Dark Down 13.8 58.0 Really Low 06:54:57 - 07:24:57 1517
George/Scottsdale 07:09:59 -59.8 Dark Down 16.3 59.4 Really Low 06:54:59 - 07:24:59 1438
Dunrhomin 07:10:51 -53.0 Dark Down 24.3 64.8 Low 06:55:51 - 07:25:51 1391
CU-SBO 07:10:49 -53.3 Dark Down 24.1 64.6 Low 06:55:49 - 07:25:49 1387

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 523746, (2022/10/02 07:17UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 15.89 156
34Bet Aur      05:59:31.6 +44:56:51  1.9 12.90 162
PPM 071742     06:32:27.1 +32:27:18  6.0  1.96 171
PPM 071848     06:36:36.0 +33:23:26  8.4  0.80 170
PPM 071833     06:36:01.4 +34:11:54  8.8  0.15 169
523746         06:36:43.8 +34:11:42 16.2       169
Positions are for J2000

Event circumstances last updated at 2022/10/02 04:07:32 UT

Marc W. Buie, Southwest Research Institute

RECON