RECON: TNO occultation with 143707

Event between (143707) 03UY117 and star GA1120:00451031 with event index number of 2468460

Geocentric closest approach at 2022/11/08 12:52:48 UTC

J2000 position of star is 03:40:02.8 +23:14:09
Equinox of date position of star is 03:41:23.5 +23:18:29
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 12 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=21.4

[RECON map]
TNO is 34.9 AU from the Sun and 33.9 AU from the Earth.
The TNO is moving 23.7 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 65 seconds.
The 1-sigma cross-track error in the shadow position is 1243 km.
The sky-plane scale is 24586.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.0
Diameter=378.5 km assuming a 5% albedo -- 16.3 sec chord
Diameter=154.5 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is 5:2EEE
 
 
 
 
 
 

Star training set for 143707, (2022/11/08 12:53UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:14.1 +16:33:12  0.8 14.75  23
44Zet Per      03:55:34.5 +31:56:59  2.8  9.19  19
17 Tau         03:46:14.2 +24:11:01  3.7  1.41  13
PPM 092708     03:40:53.7 +22:54:46  8.0  0.41  11
PPM 092711     03:41:02.2 +23:21:48 10.0  0.10  12
143707         03:41:23.9 +23:18:30 16.7        12
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 28.2 km RECON observability=0.9 and success probability=24.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 12:49:27 -12.8 AT Up 24.7 276.7 Low 12:43:34 - 12:55:19 -422
Kamloops 12:49:40 -21.5 Dark Up 33.6 266.3 Up 12:43:47 - 12:55:32 -841
Kelowna 12:49:36 -21.0 Dark Up 33.1 267.6 Up 12:43:44 - 12:55:29 -903
Peachland 12:49:36 -21.2 Dark Up 33.3 267.4 Up 12:43:44 - 12:55:29 -919
Summerland 12:49:36 -21.1 Dark Up 33.2 267.6 Up 12:43:44 - 12:55:29 -932
Penticton 12:49:36 -21.0 Dark Up 33.2 267.7 Up 12:43:43 - 12:55:28 -936
Oliver 12:49:35 -21.0 Dark Up 33.2 267.9 Up 12:43:42 - 12:55:27 -970
Anarchist Mountain Observatory 12:49:34 -20.9 Dark Up 33.1 268.2 Up 12:43:42 - 12:55:27 -983
Tonasket 12:49:34 -20.9 Dark Up 33.1 268.3 Up 12:43:41 - 12:55:26 -1015
Okanogan 12:49:33 -21.0 Dark Up 33.2 268.4 Up 12:43:41 - 12:55:26 -1050
Brewster 12:49:33 -21.1 Dark Up 33.4 268.5 Up 12:43:40 - 12:55:25 -1080
Victoria 12:49:40 -23.5 Dark Up 35.8 265.4 Up 12:43:47 - 12:55:32 -1101
Manson/Chelan 12:49:33 -21.4 Dark Up 33.6 268.3 Up 12:43:40 - 12:55:25 -1107
Wenatchee 12:49:32 -21.5 Dark Up 33.8 268.5 Up 12:43:40 - 12:55:25 -1157
Ellensburg 12:49:32 -21.6 Dark Up 33.9 268.6 Up 12:43:39 - 12:55:24 -1202
Yakima 12:49:31 -21.6 Dark Up 34.0 268.9 Up 12:43:38 - 12:55:23 -1243
Toppenish/White Swan 12:49:30 -21.5 Dark Up 33.8 269.1 Up 12:43:38 - 12:55:23 -1261
PNWRO 12:49:27 -20.5 Dark Up 32.8 270.5 Up 12:43:35 - 12:55:20 -1269
Goldendale 12:49:30 -21.8 Dark Up 34.1 269.2 Up 12:43:37 - 12:55:22 -1324
The Dalles 12:49:30 -22.0 Dark Up 34.4 269.1 Up 12:43:37 - 12:55:22 -1353
Maupin 12:49:29 -22.0 Dark Up 34.3 269.4 Up 12:43:36 - 12:55:21 -1393
Sisters 12:49:28 -22.3 Dark Up 34.7 269.7 Up 12:43:35 - 12:55:20 -1491
Dunrhomin 12:48:57 -9.8 NT Up 22.3 282.2 Low 12:43:05 - 12:54:50 -1507
Bend 12:49:27 -22.1 Dark Up 34.5 270.0 Up 12:43:34 - 12:55:19 -1510
Oregon Observatory 12:49:27 -22.2 Dark Up 34.6 270.1 Up 12:43:34 - 12:55:19 -1530
CU-SBO 12:48:57 -9.8 NT Up 22.3 282.2 Low 12:43:04 - 12:54:49 -1534
North Lake 12:49:25 -21.8 Dark Up 34.2 270.9 Up 12:43:32 - 12:55:17 -1585
Chiloquin 12:49:25 -22.4 Dark Up 34.9 270.7 Up 12:43:33 - 12:55:18 -1672
Lakeview 12:49:22 -21.3 Dark Up 33.8 272.0 Up 12:43:29 - 12:55:14 -1682
Klamath Falls 12:49:25 -22.4 Dark Up 34.8 271.0 Up 12:43:32 - 12:55:17 -1705
Cedarville 12:49:20 -21.1 Dark Up 33.6 272.5 Up 12:43:28 - 12:55:13 -1745
Fall River/Burney 12:49:21 -22.0 Dark Up 34.5 272.0 Up 12:43:29 - 12:55:14 -1819
Susanville 12:49:19 -21.4 Dark Up 34.0 272.9 Up 12:43:27 - 12:55:12 -1869
Gimple 12:49:19 -21.6 Dark Up 34.1 273.0 Up 12:43:27 - 12:55:12 -1902
Greenville 12:49:19 -21.6 Dark Up 34.2 272.9 Up 12:43:27 - 12:55:12 -1904
Quincy 12:49:19 -21.6 Dark Up 34.2 273.1 Up 12:43:27 - 12:55:12 -1925
Portola 12:49:18 -21.3 Dark Up 33.8 273.5 Up 12:43:25 - 12:55:10 -1928
Reno 12:49:16 -20.7 Dark Up 33.3 274.0 Up 12:43:24 - 12:55:09 -1942
Carson City 12:49:15 -20.7 Dark Up 33.2 274.3 Up 12:43:23 - 12:55:08 -1979
Yerington 12:49:14 -20.2 Dark Up 32.7 274.8 Up 12:43:22 - 12:55:07 -1985
Gardnerville 12:49:15 -20.6 Dark Up 33.2 274.5 Up 12:43:23 - 12:55:08 -2003
Hawthorne 12:49:12 -19.7 Dark Up 32.3 275.4 Up 12:43:20 - 12:55:05 -2022
Tonopah 12:49:09 -18.6 Dark Up 31.1 276.5 Up 12:43:17 - 12:55:02 -2038
Lee Vining 12:49:13 -20.1 Dark Up 32.6 275.4 Up 12:43:20 - 12:55:05 -2091
Bishop 12:49:10 -19.4 Dark Up 32.0 276.2 Up 12:43:18 - 12:55:03 -2137
Beatty 12:49:07 -18.1 Dark Up 30.6 277.4 Up 12:43:14 - 12:54:59 -2148
Indian Springs 12:49:04 -17.2 AT Up 29.8 278.1 Low 12:43:12 - 12:54:57 -2156
Henderson 12:49:02 -16.6 AT Up 29.1 278.8 Low 12:43:10 - 12:54:55 -2194
Patrick 12:49:00 -15.6 AT Up 28.1 279.7 Low 12:43:07 - 12:54:52 -2231
Kingman/Dolan Springs 12:49:00 -15.7 AT Up 28.3 279.7 Low 12:43:07 - 12:54:52 -2259
Laughlin/Bullhead City 12:49:01 -16.1 AT Up 28.7 279.5 Low 12:43:08 - 12:54:53 -2274
Mohave Valley 12:49:00 -16.1 AT Up 28.6 279.6 Low 12:43:07 - 12:54:52 -2303
Lake Havasu City 12:48:59 -15.8 AT Up 28.4 280.0 Low 12:43:06 - 12:54:51 -2338
George/Scottsdale 12:48:54 -13.7 AT Up 26.2 281.5 Low 12:43:01 - 12:54:46 -2353
Parker 12:48:58 -15.7 AT Up 28.3 280.2 Low 12:43:06 - 12:54:51 -2374
Idyllwild 12:49:02 -17.6 AT Up 30.2 279.2 Up 12:43:09 - 12:54:54 -2477
Wildwood 12:49:06 -19.2 Dark Up 31.8 278.1 Up 12:43:13 - 12:54:58 -2484
Calipatria 12:48:59 -16.6 AT Up 29.1 280.1 Low 12:43:07 - 12:54:52 -2512
Yuma 12:48:57 -15.7 AT Up 28.3 280.8 Low 12:43:05 - 12:54:50 -2534

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 143707, (2022/11/08 12:53UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 14.75  23
44Zet Per      03:54:07.9 +31:53:01  2.8  9.19  19
17 Tau         03:44:52.6 +24:06:47  3.7  1.41  13
PPM 092708     03:39:32.9 +22:50:24  8.0  0.41  11
PPM 092711     03:39:41.1 +23:17:26 10.0  0.10  12
143707         03:40:02.8 +23:14:09 16.7        12
Positions are for J2000

Event circumstances last updated at 2022/09/28 04:19:38 UT

Marc W. Buie, Southwest Research Institute

RECON