RECON: TNO occultation with 500886

Event between (500886) 13JN65 and star GA0720:06227861 with event index number of 1258537

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 16:32:30.2 -17:56:48
Stellar brightness G=15.7, use SENSEUP=128
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 2409 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 12.7 km RECON observability=1.0 and success probability=9.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 07:09:17 -16.5 AT Down 22.1 176.4 Low 06:56:36 - 07:21:58 -1104
Summerland 07:09:18 -16.8 AT Down 22.4 176.1 Low 06:56:37 - 07:21:59 -1118
Penticton 07:09:18 -16.9 AT Down 22.5 176.2 Low 06:56:37 - 07:21:59 -1120
Okanagan Falls 07:09:18 -17.0 AT Down 22.7 176.2 Low 06:56:37 - 07:21:59 -1129
Oliver 07:09:18 -17.2 AT Down 22.8 176.2 Low 06:56:37 - 07:21:59 -1136
Anarchist Mountain Observatory 07:09:17 -17.4 AT Down 23.0 176.4 Low 06:56:36 - 07:21:58 -1142
Oroville 07:09:18 -17.5 AT Down 23.1 176.3 Low 06:56:37 - 07:21:59 -1146
Tonasket 07:09:17 -17.7 AT Down 23.3 176.3 Low 06:56:36 - 07:21:58 -1156
Okanogan 07:09:18 -18.0 AT Down 23.6 176.2 Low 06:56:37 - 07:21:59 -1172
Brewster 07:09:19 -18.2 Dark Down 23.9 176.0 Low 06:56:38 - 07:22:00 -1186
Manson/Chelan 07:09:20 -18.4 Dark Down 24.1 175.6 Low 06:56:39 - 07:22:01 -1198
Entiat 07:09:20 -18.6 Dark Down 24.3 175.5 Low 06:56:39 - 07:22:01 -1209
Wenatchee 07:09:20 -18.8 Dark Down 24.6 175.4 Low 06:56:39 - 07:22:01 -1221
Ellensburg 07:09:21 -19.2 Dark Down 25.0 175.1 Low 06:56:40 - 07:22:02 -1243
Yakima 07:09:21 -19.6 Dark Down 25.4 175.1 Low 06:56:40 - 07:22:02 -1262
Pasco 07:09:17 -20.1 Dark Down 25.8 176.6 Low 06:56:36 - 07:21:58 -1268
Toppenish/White Swan 07:09:21 -19.8 Dark Down 25.6 175.3 Low 06:56:40 - 07:22:02 -1271
PNWRO 07:09:16 -20.4 Dark Down 26.0 176.8 Low 06:56:35 - 07:21:57 -1278
George/Umatilla 07:09:17 -20.4 Dark Down 26.1 176.3 Low 06:56:36 - 07:21:58 -1286
Goldendale 07:09:22 -20.3 Dark Down 26.1 174.8 Low 06:56:41 - 07:22:03 -1302
The Dalles 07:09:23 -20.5 Dark Down 26.3 174.4 Low 06:56:42 - 07:22:04 -1316
Maupin 07:09:23 -20.9 Dark Down 26.7 174.5 Low 06:56:42 - 07:22:04 -1336
Madras/Culver 07:09:23 -21.4 Dark Down 27.3 174.4 Low 06:56:42 - 07:22:04 -1365
Redmond 07:09:23 -21.8 Dark Down 27.6 174.4 Low 06:56:42 - 07:22:04 -1384
Sisters 07:09:25 -21.7 Dark Down 27.6 173.9 Low 06:56:44 - 07:22:06 -1386
Bend 07:09:24 -21.9 Dark Down 27.8 174.2 Low 06:56:43 - 07:22:05 -1396
Oregon Observatory 07:09:24 -22.1 Dark Down 28.0 174.0 Low 06:56:43 - 07:22:05 -1406
La Pine/Gilchrist 07:09:24 -22.3 Dark Down 28.2 174.0 Low 06:56:43 - 07:22:05 -1418
North Lake 07:09:22 -22.8 Dark Down 28.7 174.6 Low 06:56:41 - 07:22:03 -1436
Paisley 07:09:21 -23.4 Dark Down 29.3 174.9 Low 06:56:40 - 07:22:02 -1463
Chiloquin 07:09:26 -23.3 Dark Down 29.3 173.5 Low 06:56:45 - 07:22:07 -1481
Lakeview 07:09:20 -23.9 Dark Down 29.8 175.1 Low 06:56:39 - 07:22:01 -1490
Klamath Falls 07:09:26 -23.6 Dark Down 29.6 173.6 Low 06:56:45 - 07:22:07 -1500
Tulelake 07:09:25 -24.0 Dark Down 29.9 173.9 Low 06:56:44 - 07:22:06 -1512
Cedarville 07:09:20 -24.6 Dark Down 30.4 175.3 Up 06:56:39 - 07:22:01 -1525
Niwot 07:08:29 -27.0 Dark Up 31.2 191.7 Up 06:55:48 - 07:21:10 -1530
SwRI 07:08:30 -27.1 Dark Up 31.3 191.6 Up 06:55:49 - 07:21:11 -1536
Fall River/Burney 07:09:25 -24.9 Dark Down 30.8 173.9 Up 06:56:44 - 07:22:06 -1563
Susanville 07:09:22 -25.6 Dark Down 31.5 174.7 Up 06:56:41 - 07:22:03 -1593
Gimple 07:09:23 -25.8 Dark Down 31.8 174.5 Up 06:56:42 - 07:22:04 -1612
Greenville 07:09:23 -25.8 Dark Down 31.8 174.4 Up 06:56:42 - 07:22:04 -1612
Quincy 07:09:23 -26.0 Dark Down 32.0 174.4 Up 06:56:42 - 07:22:04 -1624
Portola 07:09:21 -26.2 Dark Down 32.1 174.9 Up 06:56:40 - 07:22:02 -1627
Reno 07:09:19 -26.6 Dark Down 32.4 175.6 Up 06:56:38 - 07:22:00 -1638
Carson City 07:09:19 -26.9 Dark Down 32.8 175.6 Up 06:56:38 - 07:22:00 -1659
Yerington 07:09:17 -27.2 Dark Down 33.0 176.3 Up 06:56:36 - 07:21:58 -1666
Gardnerville 07:09:19 -27.2 Dark Down 33.0 175.6 Up 06:56:38 - 07:22:00 -1674
Hawthorne 07:09:15 -27.8 Dark Down 33.5 176.9 Up 06:56:34 - 07:21:56 -1690
Tonopah 07:09:10 -28.4 Dark Up 34.0 178.5 Up 06:56:29 - 07:21:51 -1708
Lee Vining 07:09:17 -28.2 Dark Down 34.1 176.3 Up 06:56:36 - 07:21:58 -1729
Bishop 07:09:14 -28.9 Dark Up 34.7 177.1 Up 06:56:33 - 07:21:55 -1761
Beatty 07:09:09 -29.6 Dark Up 35.2 179.0 Up 06:56:28 - 07:21:50 -1777
Indian Springs 07:09:04 -30.1 Dark Up 35.5 180.2 Up 06:56:23 - 07:21:45 -1791
Lone Pine 07:09:13 -29.7 Dark Up 35.5 177.4 Up 06:56:32 - 07:21:54 -1806
Henderson 07:09:02 -30.7 Dark Up 36.0 181.0 Up 06:56:21 - 07:21:43 -1821
Patrick 07:08:58 -31.4 Dark Up 36.6 182.3 Up 06:56:17 - 07:21:39 -1855
Searchlight/Boulder City 07:09:02 -31.3 Dark Up 36.6 181.1 Up 06:56:21 - 07:21:43 -1858
Kingman/Dolan Springs 07:08:59 -31.7 Dark Up 36.9 182.1 Up 06:56:18 - 07:21:40 -1870
DCO 07:08:55 -31.8 Dark Up 36.9 183.2 Up 06:56:14 - 07:21:36 -1871
Laughlin/Bullhead City 07:09:00 -31.6 Dark Up 36.9 181.5 Up 06:56:19 - 07:21:41 -1875
Mohave Valley 07:09:00 -31.9 Dark Up 37.2 181.5 Up 06:56:19 - 07:21:41 -1893
CPSLO 07:09:22 -30.6 Dark Down 36.6 174.4 Up 06:56:41 - 07:22:03 -1914
Lake Havasu City 07:08:59 -32.3 Dark Up 37.6 181.8 Up 06:56:18 - 07:21:40 -1918
Parker 07:08:59 -32.7 Dark Up 37.9 181.8 Up 06:56:18 - 07:21:40 -1942
Wildwood 07:09:14 -32.1 Dark Up 37.9 176.7 Up 06:56:33 - 07:21:55 -1977
Blythe 07:09:00 -33.2 Dark Up 38.5 181.5 Up 06:56:19 - 07:21:41 -1980
Idyllwild 07:09:08 -32.8 Dark Up 38.4 179.0 Up 06:56:27 - 07:21:49 -1987
Calipatria 07:09:03 -33.5 Dark Up 39.0 180.4 Up 06:56:22 - 07:21:44 -2020
Yuma 07:08:59 -34.1 Dark Up 39.4 181.5 Up 06:56:18 - 07:21:40 -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 2019/06/08 05:19:13 UT

Marc W. Buie, Southwest Research Institute

RECON