RECON: TNO occultation with 500886

Event between (500886) 13JN65 and star GA0720:06227861 with event index number of 2336197

Geocentric closest approach at 2023/06/08 07:08:48 UTC

J2000 position of star is 16:31:22.7 -17:54:22
Equinox of date position of star is 16:32:39.9 -17:57:09
Stellar brightness G=15.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 65 degrees from the moon. Moon is 78% illuminated.
TNO apparent brightness V=23.5

[RECON map]
TNO is 41.2 AU from the Sun and 40.1 AU from the Earth.
The TNO is moving 24.8 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 146 seconds.
The 1-sigma cross-track error in the shadow position is 2408 km.
The sky-plane scale is 29118.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.4
Diameter=199.5 km assuming a 5% albedo -- 8.0 sec chord
Diameter=81.5 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 500886, (2023/06/08 07:09UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:50.9 -26:28:55  0.9  8.54  64
8Bet1Sco       16:06:48.2 -19:52:04  2.6  6.42  71
7Chi Oph       16:28:23.1 -18:30:27  4.1  1.17  66
PPM 231799     16:33:00.1 -17:45:44  8.3  0.20  65
PPM 231791     16:32:16.1 -17:50:51  9.7  0.15  65
500886         16:32:44.1 -17:57:18 15.7        65
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 15.8 km RECON observability=1.0 and success probability=10.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 07:08:40 -15.1 AT Down 19.5 189.9 Really Low 06:56:01 - 07:21:20 -959
Kamloops 07:09:20 -15.6 AT Down 21.3 175.4 Low 06:56:40 - 07:21:59 -1078
Kelowna 07:09:17 -16.5 AT Down 22.2 176.3 Low 06:56:38 - 07:21:57 -1106
Peachland 07:09:18 -16.6 AT Down 22.3 176.0 Low 06:56:39 - 07:21:58 -1112
Summerland 07:09:18 -16.8 AT Down 22.4 176.1 Low 06:56:39 - 07:21:58 -1118
Penticton 07:09:18 -16.9 AT Down 22.5 176.2 Low 06:56:38 - 07:21:57 -1120
Oliver 07:09:18 -17.2 AT Down 22.8 176.2 Low 06:56:38 - 07:21:57 -1135
Anarchist Mountain Observatory 07:09:17 -17.4 AT Down 23.0 176.4 Low 06:56:38 - 07:21:57 -1141
Tonasket 07:09:17 -17.7 AT Down 23.3 176.3 Low 06:56:38 - 07:21:57 -1156
Okanogan 07:09:18 -18.0 AT Down 23.6 176.2 Low 06:56:38 - 07:21:57 -1172
Brewster 07:09:19 -18.2 Dark Down 23.9 176.0 Low 06:56:39 - 07:21:58 -1186
Victoria 07:09:29 -17.3 AT Down 23.2 172.3 Low 06:56:50 - 07:22:09 -1195
Manson/Chelan 07:09:20 -18.4 Dark Down 24.1 175.6 Low 06:56:40 - 07:21:59 -1198
Wenatchee 07:09:20 -18.8 Dark Down 24.6 175.4 Low 06:56:41 - 07:22:00 -1221
Ellensburg 07:09:21 -19.2 Dark Down 25.0 175.1 Low 06:56:41 - 07:22:00 -1242
Yakima 07:09:21 -19.6 Dark Down 25.4 175.1 Low 06:56:41 - 07:22:00 -1262
Toppenish/White Swan 07:09:21 -19.8 Dark Down 25.6 175.3 Low 06:56:41 - 07:22:00 -1271
PNWRO 07:09:16 -20.4 Dark Down 26.0 176.8 Low 06:56:36 - 07:21:55 -1278
Goldendale 07:09:22 -20.3 Dark Down 26.1 174.8 Low 06:56:42 - 07:22:01 -1301
The Dalles 07:09:23 -20.5 Dark Down 26.3 174.4 Low 06:56:44 - 07:22:03 -1316
Maupin 07:09:23 -20.9 Dark Down 26.7 174.5 Low 06:56:43 - 07:22:02 -1336
Sisters 07:09:25 -21.7 Dark Down 27.6 173.9 Low 06:56:45 - 07:22:04 -1385
Bend 07:09:24 -21.9 Dark Down 27.8 174.2 Low 06:56:44 - 07:22:03 -1395
Oregon Observatory 07:09:24 -22.1 Dark Down 28.0 174.0 Low 06:56:45 - 07:22:04 -1405
North Lake 07:09:22 -22.8 Dark Down 28.7 174.6 Low 06:56:43 - 07:22:02 -1435
Chiloquin 07:09:26 -23.3 Dark Down 29.3 173.5 Low 06:56:46 - 07:22:05 -1480
Lakeview 07:09:21 -23.9 Dark Down 29.8 175.1 Low 06:56:41 - 07:22:00 -1488
Klamath Falls 07:09:25 -23.6 Dark Down 29.6 173.6 Low 06:56:46 - 07:22:05 -1499
Dunrhomin 07:08:30 -26.9 Dark Up 31.0 191.7 Up 06:55:50 - 07:21:09 -1520
Cedarville 07:09:20 -24.6 Dark Down 30.4 175.3 Up 06:56:41 - 07:22:00 -1524
CU-SBO 07:08:30 -27.1 Dark Up 31.3 191.6 Up 06:55:51 - 07:21:10 -1535
Fall River/Burney 07:09:24 -24.9 Dark Down 30.8 173.9 Up 06:56:45 - 07:22:04 -1562
Susanville 07:09:22 -25.6 Dark Down 31.5 174.7 Up 06:56:42 - 07:22:01 -1592
Gimple 07:09:23 -25.8 Dark Down 31.8 174.5 Up 06:56:43 - 07:22:02 -1611
Greenville 07:09:23 -25.8 Dark Down 31.8 174.4 Up 06:56:44 - 07:22:03 -1611
Quincy 07:09:23 -26.0 Dark Down 32.0 174.4 Up 06:56:43 - 07:22:02 -1623
Portola 07:09:22 -26.2 Dark Down 32.1 174.9 Up 06:56:42 - 07:22:01 -1626
Reno 07:09:19 -26.6 Dark Down 32.4 175.6 Up 06:56:40 - 07:21:59 -1637
Carson City 07:09:19 -26.9 Dark Down 32.8 175.6 Up 06:56:40 - 07:21:59 -1658
Yerington 07:09:17 -27.2 Dark Down 33.0 176.3 Up 06:56:37 - 07:21:56 -1665
Gardnerville 07:09:19 -27.2 Dark Down 33.0 175.6 Up 06:56:39 - 07:21:58 -1672
Hawthorne 07:09:15 -27.8 Dark Down 33.5 176.9 Up 06:56:36 - 07:21:55 -1689
Tonopah 07:09:10 -28.4 Dark Up 34.0 178.5 Up 06:56:31 - 07:21:50 -1706
Lee Vining 07:09:17 -28.2 Dark Down 34.1 176.3 Up 06:56:37 - 07:21:56 -1727
Bishop 07:09:14 -28.9 Dark Up 34.7 177.1 Up 06:56:35 - 07:21:54 -1759
Beatty 07:09:09 -29.6 Dark Up 35.2 179.0 Up 06:56:29 - 07:21:48 -1777
Indian Springs 07:09:04 -30.1 Dark Up 35.5 180.2 Up 06:56:25 - 07:21:44 -1790
Henderson 07:09:02 -30.7 Dark Up 36.0 181.0 Up 06:56:22 - 07:21:41 -1820
Patrick 07:08:58 -31.4 Dark Up 36.6 182.3 Up 06:56:18 - 07:21:37 -1854
Kingman/Dolan Springs 07:08:58 -31.6 Dark Up 36.9 182.1 Up 06:56:19 - 07:21:38 -1870
Laughlin/Bullhead City 07:09:00 -31.6 Dark Up 36.9 181.5 Up 06:56:21 - 07:21:40 -1875
Mohave Valley 07:09:00 -31.9 Dark Up 37.2 181.5 Up 06:56:21 - 07:21:40 -1893
Lake Havasu City 07:08:59 -32.3 Dark Up 37.6 181.8 Up 06:56:20 - 07:21:39 -1918
Parker 07:08:59 -32.7 Dark Up 37.9 181.8 Up 06:56:19 - 07:21:38 -1942
George/Scottsdale 07:08:50 -33.3 Dark Up 38.2 184.8 Up 06:56:11 - 07:21:30 -1956
Wildwood 07:09:15 -32.1 Dark Up 37.9 176.7 Up 06:56:35 - 07:21:54 -1977
Idyllwild 07:09:08 -32.8 Dark Up 38.4 179.0 Up 06:56:28 - 07:21:47 -1986
Calipatria 07:09:03 -33.5 Dark Up 39.0 180.4 Up 06:56:24 - 07:21:43 -2020
Yuma 07:09:00 -34.1 Dark Up 39.4 181.5 Up 06:56:20 - 07:21:39 -2044

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 500886, (2023/06/08 07:09UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  8.54  64
8Bet1Sco       16:05:26.2 -19:48:20  2.6  6.42  71
7Chi Oph       16:27:01.4 -18:27:23  4.1  1.17  66
PPM 231799     16:31:38.7 -17:42:49  8.3  0.20  65
PPM 231791     16:30:54.8 -17:47:54  9.7  0.15  65
500886         16:31:22.7 -17:54:22 15.7        65
Positions are for J2000

Event circumstances last updated at 2022/03/20 00:52:04 UT

Marc W. Buie, Southwest Research Institute

RECON