RECON: TNO occultation with 02GS32

Event between 02GS32 and star GA0660:11462498 with event index number of 1182157

Geocentric closest approach at 2023/06/23 06:48:33 UTC

J2000 position of star is 17:18:49.0 -23:04:34
Equinox of date position of star is 17:20:09.9 -23:05:53
Stellar brightness G=16.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 112 degrees from the moon. Moon is 23% illuminated.
TNO apparent brightness V=23.3

[RECON map]
TNO is 38.6 AU from the Sun and 37.6 AU from the Earth.
The TNO is moving 23.8 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 2089 seconds.
The 1-sigma cross-track error in the shadow position is 3395 km.
The sky-plane scale is 27267.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.5
Diameter=187.9 km assuming a 5% albedo -- 7.9 sec chord
Diameter=76.7 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 02GS32, (2023/06/23 06:49UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:51.0 -26:28:55  0.9 11.70 102
35Eta Oph      17:11:43.6 -15:45:08  2.6  7.62 109
PPM 266836     17:26:32.4 -24:15:47  6.4  1.85 114
PPM 266748     17:23:14.1 -22:46:24  8.2  0.76 113
PPM 266662     17:19:52.6 -22:59:03  9.4  0.14 112
02GS32         17:20:14.3 -23:05:57 16.1       113
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 0.4 sigma about the mid-time.
The median site spacing is 13.4 km RECON observability=0.7 and success probability=2.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 06:48:33 -14.4 AT Down 14.5 187.3 Really Low 06:33:33 - 07:03:33 7204
Kamloops 06:49:14 -14.1 AT Up 16.0 173.7 Really Low 06:34:14 - 07:04:14 7080
Kelowna 06:49:11 -15.0 AT Up 16.9 174.5 Really Low 06:34:11 - 07:04:11 7061
Peachland 06:49:13 -15.1 AT Up 17.0 174.3 Really Low 06:34:13 - 07:04:13 7055
Summerland 06:49:12 -15.3 AT Up 17.1 174.3 Really Low 06:34:12 - 07:04:12 7050
Penticton 06:49:12 -15.3 AT Up 17.2 174.4 Really Low 06:34:12 - 07:04:12 7049
Oliver 06:49:12 -15.7 AT Up 17.6 174.4 Really Low 06:34:12 - 07:04:12 7037
Anarchist Mountain Observatory 06:49:12 -15.9 AT Up 17.7 174.6 Really Low 06:34:12 - 07:04:12 7033
Tonasket 06:49:12 -16.2 AT Up 18.0 174.5 Really Low 06:34:12 - 07:04:12 7021
Okanogan 06:49:12 -16.5 AT Up 18.4 174.4 Really Low 06:34:12 - 07:04:12 7008
Brewster 06:49:13 -16.7 AT Up 18.6 174.2 Really Low 06:34:13 - 07:04:13 6996
Manson/Chelan 06:49:14 -16.8 AT Up 18.8 173.8 Really Low 06:34:14 - 07:04:14 6985
Victoria 06:49:24 -15.5 AT Up 17.9 170.7 Really Low 06:34:24 - 07:04:24 6975
Wenatchee 06:49:15 -17.2 AT Up 19.3 173.6 Really Low 06:34:15 - 07:04:15 6965
Ellensburg 06:49:15 -17.6 AT Up 19.7 173.4 Really Low 06:34:15 - 07:04:15 6947
Yakima 06:49:16 -17.9 AT Up 20.1 173.4 Low 06:34:16 - 07:04:16 6931
Toppenish/White Swan 06:49:15 -18.2 Dark Up 20.3 173.5 Low 06:34:15 - 07:04:15 6924
PNWRO 06:49:10 -18.8 Dark Up 20.8 175.0 Low 06:34:10 - 07:04:10 6924
Goldendale 06:49:17 -18.6 Dark Up 20.8 173.1 Low 06:34:17 - 07:04:17 6898
The Dalles 06:49:18 -18.8 Dark Up 21.0 172.7 Low 06:34:18 - 07:04:18 6884
Maupin 06:49:18 -19.2 Dark Up 21.4 172.8 Low 06:34:18 - 07:04:18 6868
Sisters 06:49:19 -19.9 Dark Up 22.3 172.3 Low 06:34:19 - 07:04:19 6826
Bend 06:49:18 -20.2 Dark Up 22.5 172.5 Low 06:34:18 - 07:04:18 6818
Oregon Observatory 06:49:19 -20.3 Dark Up 22.7 172.4 Low 06:34:19 - 07:04:19 6809
North Lake 06:49:18 -21.0 Dark Up 23.4 172.9 Low 06:34:18 - 07:04:18 6786
Dunrhomin 06:48:24 -26.2 Dark Down 26.2 188.6 Low 06:33:24 - 07:03:24 6751
Chiloquin 06:49:21 -21.5 Dark Up 23.9 171.9 Low 06:34:21 - 07:04:21 6744
Lakeview 06:49:16 -22.2 Dark Up 24.5 173.4 Low 06:34:16 - 07:04:16 6743
CU-SBO 06:48:24 -26.5 Dark Down 26.4 188.6 Low 06:33:24 - 07:03:24 6738
Klamath Falls 06:49:21 -21.8 Dark Up 24.3 172.0 Low 06:34:21 - 07:04:21 6729
Cedarville 06:49:16 -22.8 Dark Up 25.1 173.5 Low 06:34:16 - 07:04:16 6714
Fall River/Burney 06:49:20 -23.0 Dark Up 25.5 172.3 Low 06:34:20 - 07:04:20 6676
Susanville 06:49:17 -23.8 Dark Up 26.2 173.0 Low 06:34:17 - 07:04:17 6653
Gimple 06:49:18 -24.0 Dark Up 26.4 172.7 Low 06:34:18 - 07:04:18 6637
Greenville 06:49:19 -24.0 Dark Up 26.4 172.7 Low 06:34:19 - 07:04:19 6636
Quincy 06:49:19 -24.2 Dark Up 26.6 172.7 Low 06:34:19 - 07:04:19 6626
Portola 06:49:17 -24.4 Dark Up 26.8 173.1 Low 06:34:17 - 07:04:17 6625
Reno 06:49:15 -24.8 Dark Up 27.1 173.8 Low 06:34:15 - 07:04:15 6618
Carson City 06:49:15 -25.2 Dark Up 27.5 173.8 Low 06:34:15 - 07:04:15 6600
Yerington 06:49:12 -25.5 Dark Up 27.7 174.4 Low 06:34:12 - 07:04:12 6596
Gardnerville 06:49:14 -25.4 Dark Up 27.7 173.8 Low 06:34:14 - 07:04:14 6588
Hawthorne 06:49:11 -26.1 Dark Up 28.2 174.9 Low 06:34:11 - 07:04:11 6577
Tonopah 06:49:06 -26.8 Dark Down 28.8 176.4 Low 06:34:06 - 07:04:06 6567
Lee Vining 06:49:13 -26.5 Dark Up 28.8 174.4 Low 06:34:13 - 07:04:13 6543
Bishop 06:49:10 -27.2 Dark Down 29.4 175.1 Low 06:34:10 - 07:04:10 6517
Beatty 06:49:04 -28.0 Dark Down 30.0 176.8 Low 06:34:04 - 07:04:04 6507
Indian Springs 06:49:00 -28.6 Dark Down 30.3 177.9 Up 06:34:00 - 07:04:00 6499
Henderson 06:48:57 -29.2 Dark Down 30.9 178.7 Up 06:33:57 - 07:03:57 6474
Patrick 06:48:53 -30.0 Dark Down 31.5 179.8 Up 06:33:53 - 07:03:53 6447
Kingman/Dolan Springs 06:48:54 -30.2 Dark Down 31.7 179.6 Up 06:33:54 - 07:03:54 6433
Laughlin/Bullhead City 06:48:55 -30.1 Dark Down 31.8 179.1 Up 06:33:55 - 07:03:55 6427
Mohave Valley 06:48:56 -30.4 Dark Down 32.0 179.1 Up 06:33:56 - 07:03:56 6411
Lake Havasu City 06:48:55 -30.8 Dark Down 32.4 179.3 Up 06:33:55 - 07:03:55 6389
Parker 06:48:54 -31.2 Dark Down 32.8 179.4 Up 06:33:54 - 07:03:54 6369
George/Scottsdale 06:48:45 -32.0 Dark Down 33.2 182.0 Up 06:33:45 - 07:03:45 6362
Wildwood 06:49:11 -30.3 Dark Down 32.6 174.7 Up 06:34:11 - 07:04:11 6325
Idyllwild 06:49:03 -31.1 Dark Down 33.1 176.7 Up 06:34:03 - 07:04:03 6323
Calipatria 06:48:59 -31.9 Dark Down 33.8 178.0 Up 06:33:59 - 07:03:59 6296
Yuma 06:48:56 -32.5 Dark Down 34.2 179.0 Up 06:33:56 - 07:03:56 6277

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 02GS32, (2023/06/23 06:49UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 11.70 102
35Eta Oph      17:10:22.7 -15:43:29  2.6  7.62 109
PPM 266836     17:25:06.3 -24:14:37  6.4  1.85 114
PPM 266748     17:21:48.9 -22:45:07  8.2  0.76 113
PPM 266662     17:18:27.3 -22:57:40  9.4  0.14 112
02GS32         17:18:49.0 -23:04:34 16.1       112
Positions are for J2000

Event circumstances last updated at 2022/04/02 23:58:59 UT

Marc W. Buie, Southwest Research Institute

RECON