RECON: TNO occultation with 07LG38

Event between 07LG38 and star GA0900:07654436 with event index number of 2024819

Geocentric closest approach at 2022/06/07 07:14:33 UTC

J2000 position of star is 18:23:19.2 +01:11:31
Equinox of date position of star is 18:24:26.8 +01:12:17
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 109 degrees from the moon. Moon is 47% illuminated.
TNO apparent brightness V=23.8

[RECON map]
TNO is 36.1 AU from the Sun and 35.2 AU from the Earth.
The TNO is moving 22.5 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 203 seconds.
The 1-sigma cross-track error in the shadow position is 2091 km.
The sky-plane scale is 25557.5 km/arcsec.

The TNO has an absolute magnitude Hv=8.2
Diameter=134.9 km assuming a 5% albedo -- 6.0 sec chord
Diameter=55.1 km assuming a 30% albedo -- 2.4 sec chord
Dynamical classification is 5:2EEE
 
 
 
 
 
 

Star training set for 07LG38, (2022/06/07 07:15UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.2 -26:28:47  0.9 38.95  87
60Bet Oph      17:44:34.9 +04:33:34  2.8 10.51  99
59 Ser         18:28:21.4 +00:12:40  5.6  1.39 110
PPM 165803     18:27:12.0 +00:47:42  7.1  0.80 110
PPM 165686     18:23:29.8 +01:03:59  9.6  0.28 109
07LG38         18:24:27.5 +01:12:18 15.4       109
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 4.4 sigma about the mid-time.
The median site spacing is 24.3 km RECON observability=1.0 and success probability=1.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 07:15:36 -15.1 AT Up 37.1 158.3 Up 07:00:36 - 07:30:36 7510
Kamloops 07:16:18 -15.9 AT Up 33.8 141.1 Up 07:01:18 - 07:31:18 7374
Kelowna 07:16:17 -16.8 AT Up 34.8 141.8 Up 07:01:17 - 07:31:17 7315
Peachland 07:16:18 -16.9 AT Up 34.8 141.4 Up 07:01:18 - 07:31:18 7306
Summerland 07:16:18 -17.1 AT Up 34.9 141.4 Up 07:01:18 - 07:31:18 7295
Penticton 07:16:18 -17.1 AT Up 35.0 141.5 Up 07:01:18 - 07:31:18 7290
Oliver 07:16:18 -17.5 AT Up 35.3 141.4 Up 07:01:18 - 07:31:18 7263
Anarchist Mountain Observatory 07:16:18 -17.7 AT Up 35.5 141.5 Up 07:01:18 - 07:31:18 7251
Tonasket 07:16:19 -18.0 AT Up 35.7 141.3 Up 07:01:19 - 07:31:19 7227
Victoria 07:16:30 -17.6 AT Up 34.2 136.9 Up 07:01:30 - 07:31:30 7205
Okanogan 07:16:20 -18.3 Dark Up 35.9 141.0 Up 07:01:20 - 07:31:20 7201
Brewster 07:16:21 -18.5 Dark Up 36.1 140.6 Up 07:01:21 - 07:31:21 7179
Manson/Chelan 07:16:22 -18.7 Dark Up 36.1 140.1 Up 07:01:22 - 07:31:22 7162
Wenatchee 07:16:23 -19.1 Dark Up 36.4 139.7 Up 07:01:23 - 07:31:23 7125
Ellensburg 07:16:25 -19.5 Dark Up 36.6 139.3 Up 07:01:25 - 07:31:25 7092
Yakima 07:16:26 -19.9 Dark Up 36.9 139.1 Up 07:01:26 - 07:31:26 7059
Toppenish/White Swan 07:16:25 -20.2 Dark Up 37.1 139.1 Up 07:01:25 - 07:31:25 7042
PNWRO 07:16:22 -20.7 Dark Up 38.1 140.6 Up 07:01:22 - 07:31:22 7016
Goldendale 07:16:27 -20.6 Dark Up 37.4 138.4 Up 07:01:27 - 07:31:27 6997
The Dalles 07:16:29 -20.8 Dark Up 37.4 137.9 Up 07:01:29 - 07:31:29 6978
Maupin 07:16:29 -21.2 Dark Up 37.7 137.8 Up 07:01:29 - 07:31:29 6944
Sisters 07:16:32 -22.0 Dark Up 38.1 136.8 Up 07:01:32 - 07:31:32 6871
Bend 07:16:32 -22.3 Dark Up 38.4 136.9 Up 07:01:32 - 07:31:32 6852
Oregon Observatory 07:16:33 -22.5 Dark Up 38.5 136.7 Up 07:01:33 - 07:31:33 6837
North Lake 07:16:33 -23.2 Dark Up 39.2 137.0 Up 07:01:33 - 07:31:33 6785
Chiloquin 07:16:36 -23.7 Dark Up 39.2 135.5 Up 07:01:36 - 07:31:36 6726
Lakeview 07:16:32 -24.3 Dark Up 40.3 137.0 Up 07:01:32 - 07:31:32 6697
Klamath Falls 07:16:36 -24.0 Dark Up 39.5 135.4 Up 07:01:36 - 07:31:36 6697
Cedarville 07:16:32 -24.9 Dark Up 40.8 136.8 Up 07:01:32 - 07:31:32 6641
Fall River/Burney 07:16:37 -25.2 Dark Up 40.6 135.2 Up 07:01:37 - 07:31:37 6596
Dunrhomin 07:15:42 -26.9 Dark Up 48.2 155.0 Up 07:00:42 - 07:30:42 6573
CU-SBO 07:15:42 -27.1 Dark Up 48.4 154.7 Up 07:00:42 - 07:30:42 6551
Susanville 07:16:36 -26.0 Dark Up 41.4 135.6 Up 07:01:36 - 07:31:36 6543
Greenville 07:16:37 -26.2 Dark Up 41.4 135.1 Up 07:01:37 - 07:31:37 6518
Gimple 07:16:37 -26.2 Dark Up 41.5 135.2 Up 07:01:37 - 07:31:37 6518
Quincy 07:16:37 -26.4 Dark Up 41.6 135.0 Up 07:01:37 - 07:31:37 6500
Portola 07:16:36 -26.6 Dark Up 41.9 135.4 Up 07:01:36 - 07:31:36 6490
Reno 07:16:35 -26.9 Dark Up 42.5 136.0 Up 07:01:35 - 07:31:35 6468
Carson City 07:16:35 -27.3 Dark Up 42.7 135.8 Up 07:01:35 - 07:31:35 6437
Yerington 07:16:33 -27.6 Dark Up 43.2 136.4 Up 07:01:33 - 07:31:33 6421
Gardnerville 07:16:35 -27.5 Dark Up 42.9 135.7 Up 07:01:35 - 07:31:35 6415
Hawthorne 07:16:32 -28.1 Dark Up 43.8 136.7 Up 07:01:32 - 07:31:32 6381
Tonopah 07:16:28 -28.7 Dark Up 44.9 138.1 Up 07:01:28 - 07:31:28 6343
Lee Vining 07:16:34 -28.6 Dark Up 44.0 135.8 Up 07:01:34 - 07:31:34 6329
Bishop 07:16:33 -29.3 Dark Up 44.8 136.2 Up 07:01:33 - 07:31:33 6276
Beatty 07:16:28 -29.9 Dark Up 46.0 137.8 Up 07:01:28 - 07:31:28 6238
Indian Springs 07:16:24 -30.4 Dark Up 46.8 138.9 Up 07:01:24 - 07:31:24 6212
Henderson 07:16:22 -31.0 Dark Up 47.6 139.4 Up 07:01:22 - 07:31:22 6164
Patrick 07:16:19 -31.7 Dark Up 48.7 140.3 Up 07:01:19 - 07:31:19 6110
Kingman/Dolan Springs 07:16:20 -31.9 Dark Up 48.7 139.9 Up 07:01:20 - 07:31:20 6088
Laughlin/Bullhead City 07:16:22 -31.9 Dark Up 48.5 139.3 Up 07:01:22 - 07:31:22 6084
Mohave Valley 07:16:22 -32.1 Dark Up 48.7 139.1 Up 07:01:22 - 07:31:22 6059
Lake Havasu City 07:16:22 -32.6 Dark Up 49.1 139.1 Up 07:01:22 - 07:31:22 6022
Parker 07:16:22 -32.9 Dark Up 49.4 138.9 Up 07:01:22 - 07:31:22 5989
Wildwood 07:16:37 -32.5 Dark Up 47.0 133.6 Up 07:01:37 - 07:31:37 5973
George/Scottsdale 07:16:13 -33.5 Dark Up 51.0 141.7 Up 07:01:13 - 07:31:13 5957
Idyllwild 07:16:31 -33.1 Dark Up 48.4 135.5 Up 07:01:31 - 07:31:31 5944
Calipatria 07:16:27 -33.8 Dark Up 49.5 136.5 Up 07:01:27 - 07:31:27 5889
Yuma 07:16:24 -34.3 Dark Up 50.3 137.3 Up 07:01:24 - 07:31:24 5851

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 07LG38, (2022/06/07 07:15UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 38.95  87
60Bet Oph      17:43:28.3 +04:34:06  2.8 10.51  99
59 Ser         18:27:12.5 +00:11:46  5.6  1.39 110
PPM 165803     18:26:03.5 +00:46:50  7.1  0.80 110
PPM 165686     18:22:21.4 +01:03:14  9.6  0.28 109
07LG38         18:23:19.2 +01:11:31 15.4       109
Positions are for J2000

Event circumstances last updated at 2022/03/14 01:03:09 UT

Marc W. Buie, Southwest Research Institute

RECON