RECON: TNO occultation with 03LD9

Event between 03LD9 and star GA0700:23091437 with event index number of 1662746

Geocentric closest approach at 2022/06/16 10:11:50 UTC

J2000 position of star is 18:23:17.9 -18:56:10
Equinox of date position of star is 18:24:36.2 -18:55:24
Stellar brightness G=14.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 19 degrees from the moon. Moon is 94% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 43.1 AU from the Sun and 42.1 AU from the Earth.
The TNO is moving 24.1 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 644 seconds.
The 1-sigma cross-track error in the shadow position is 2778 km.
The sky-plane scale is 30510.5 km/arcsec.

The TNO has an absolute magnitude Hv=6.6
Diameter=295.1 km assuming a 5% albedo -- 12.2 sec chord
Diameter=120.5 km assuming a 30% albedo -- 5.0 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 03LD9, (2022/06/16 10:12UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.3 -26:28:48  0.9 27.25  43
Nunki          18:56:39.4 -26:16:01  2.0 10.42  10
PPM 234421     18:22:42.3 -18:50:53  5.9  0.46  20
PPM 234480     18:25:23.1 -19:22:49  7.9  0.49  19
PPM 234447     18:24:06.3 -18:42:23  9.5  0.25  20
03LD9          18:24:37.2 -18:55:23 14.6        19
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 1.4 sigma about the mid-time.
The median site spacing is 19.5 km RECON observability=0.7 and success probability=1.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 10:10:49 -10.7 NT Up 17.9 201.1 Really Low 09:55:49 - 10:25:49 8692
Kelowna 10:10:46 -11.1 NT Up 18.5 202.0 Really Low 09:55:46 - 10:25:46 8650
Peachland 10:10:46 -11.3 NT Up 18.7 201.7 Really Low 09:55:46 - 10:25:46 8648
Summerland 10:10:46 -11.4 NT Up 18.8 201.8 Really Low 09:55:46 - 10:25:46 8641
Penticton 10:10:46 -11.4 NT Up 18.8 202.0 Really Low 09:55:46 - 10:25:46 8637
Victoria 10:10:56 -13.5 AT Up 20.6 198.4 Low 09:55:56 - 10:25:56 8625
Oliver 10:10:45 -11.7 NT Up 19.1 202.0 Really Low 09:55:45 - 10:25:45 8622
Anarchist Mountain Observatory 10:10:45 -11.8 NT Up 19.2 202.2 Really Low 09:55:45 - 10:25:45 8613
Tonasket 10:10:45 -12.1 AT Up 19.5 202.2 Really Low 09:55:45 - 10:25:45 8600
Sleaford 10:10:15 -4.3 CT Up 12.5 214.2 Really Low 09:55:15 - 10:25:15 8593
Okanogan 10:10:45 -12.5 AT Up 19.9 202.1 Really Low 09:55:45 - 10:25:45 8586
Brewster 10:10:44 -12.8 AT Up 20.2 201.9 Low 09:55:44 - 10:25:44 8576
Manson/Chelan 10:10:46 -13.1 AT Up 20.5 201.6 Low 09:55:46 - 10:25:46 8570
Wenatchee 10:10:45 -13.5 AT Up 21.0 201.5 Low 09:55:45 - 10:25:45 8549
Ellensburg 10:10:45 -14.0 AT Up 21.4 201.3 Low 09:55:45 - 10:25:45 8532
Yakima 10:10:45 -14.3 AT Up 21.8 201.4 Low 09:55:45 - 10:25:45 8513
Toppenish/White Swan 10:10:44 -14.5 AT Up 22.0 201.6 Low 09:55:44 - 10:25:44 8501
Goldendale 10:10:45 -15.1 AT Up 22.6 201.2 Low 09:55:45 - 10:25:45 8478
The Dalles 10:10:46 -15.4 AT Up 22.9 200.9 Low 09:55:46 - 10:25:46 8470
PNWRO 10:10:40 -14.2 AT Up 21.9 203.1 Low 09:55:40 - 10:25:40 8468
Maupin 10:10:45 -15.7 AT Up 23.2 201.1 Low 09:55:45 - 10:25:45 8448
Sisters 10:10:45 -16.7 AT Up 24.2 200.7 Low 09:55:45 - 10:25:45 8408
Bend 10:10:45 -16.8 AT Up 24.3 201.0 Low 09:55:45 - 10:25:45 8394
Oregon Observatory 10:10:45 -17.0 AT Up 24.5 200.9 Low 09:55:45 - 10:25:45 8386
North Lake 10:10:42 -17.3 AT Up 25.0 201.6 Low 09:55:42 - 10:25:42 8347
Chiloquin 10:10:44 -18.3 Dark Up 25.9 200.7 Low 09:55:44 - 10:25:44 8319
Klamath Falls 10:10:44 -18.5 Dark Up 26.2 200.9 Low 09:55:44 - 10:25:44 8300
Lakeview 10:10:40 -18.0 Dark Up 25.8 202.3 Low 09:55:40 - 10:25:40 8284
Cedarville 10:10:39 -18.5 Dark Up 26.4 202.6 Low 09:55:39 - 10:25:39 8246
Fall River/Burney 10:10:42 -19.4 Dark Up 27.2 201.5 Low 09:55:42 - 10:25:42 8230
Susanville 10:10:39 -19.7 Dark Up 27.6 202.3 Low 09:55:39 - 10:25:39 8186
Greenville 10:10:39 -20.0 Dark Up 27.9 202.1 Low 09:55:39 - 10:25:39 8173
Gimple 10:10:39 -20.0 Dark Up 27.9 202.2 Low 09:55:39 - 10:25:39 8172
Quincy 10:10:39 -20.2 Dark Up 28.1 202.1 Low 09:55:39 - 10:25:39 8161
Portola 10:10:38 -20.1 Dark Up 28.1 202.6 Low 09:55:38 - 10:25:38 8149
Reno 10:10:35 -20.1 Dark Up 28.1 203.3 Low 09:55:35 - 10:25:35 8126
Carson City 10:10:35 -20.4 Dark Up 28.4 203.4 Low 09:55:35 - 10:25:35 8105
Gardnerville 10:10:34 -20.6 Dark Up 28.6 203.5 Low 09:55:34 - 10:25:34 8089
Yerington 10:10:32 -20.3 Dark Up 28.4 204.1 Low 09:55:32 - 10:25:32 8086
Hawthorne 10:10:30 -20.5 Dark Up 28.7 204.7 Low 09:55:30 - 10:25:30 8052
Lee Vining 10:10:31 -21.2 Dark Up 29.3 204.4 Low 09:55:31 - 10:25:31 8023
Tonopah 10:10:25 -20.3 Dark Up 28.6 206.3 Low 09:55:25 - 10:25:25 8007
Bishop 10:10:28 -21.3 Dark Up 29.7 205.2 Low 09:55:28 - 10:25:28 7976
Dunrhomin 10:09:52 -12.7 AT Up 21.9 217.0 Low 09:54:52 - 10:24:52 7971
CU-SBO 10:09:51 -13.0 AT Up 22.2 216.9 Low 09:54:51 - 10:24:51 7957
Beatty 10:10:22 -21.0 Dark Up 29.5 207.0 Low 09:55:22 - 10:25:22 7927
Indian Springs 10:10:18 -20.8 Dark Up 29.4 208.1 Low 09:55:18 - 10:25:18 7892
Henderson 10:10:15 -20.9 Dark Up 29.6 209.0 Low 09:55:15 - 10:25:15 7848
Patrick 10:10:12 -20.8 Dark Up 29.7 210.2 Low 09:55:12 - 10:25:12 7791
Laughlin/Bullhead City 10:10:13 -21.4 Dark Up 30.2 209.6 Up 09:55:13 - 10:25:13 7784
Kingman/Dolan Springs 10:10:11 -21.1 Dark Up 30.0 210.1 Low 09:55:11 - 10:25:11 7779
Mohave Valley 10:10:13 -21.6 Dark Up 30.4 209.7 Up 09:55:13 - 10:25:13 7765
Wildwood 10:10:26 -24.2 Dark Up 32.7 205.9 Up 09:55:26 - 10:25:26 7763
Lake Havasu City 10:10:11 -21.8 Dark Up 30.7 210.0 Up 09:55:11 - 10:25:11 7735
Idyllwild 10:10:19 -23.6 Dark Up 32.3 207.9 Up 09:55:19 - 10:25:19 7715
Parker 10:10:12 -22.1 Dark Up 31.0 210.2 Up 09:55:12 - 10:25:12 7710
Calipatria 10:10:14 -23.5 Dark Up 32.4 209.3 Up 09:55:14 - 10:25:14 7656
George/Scottsdale 10:10:02 -21.1 Dark Up 30.3 212.7 Up 09:55:02 - 10:25:02 7646
Yuma 10:10:10 -23.4 Dark Up 32.4 210.3 Up 09:55:10 - 10:25:10 7613

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 03LD9, (2022/06/16 10:12UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 27.25  43
Nunki          18:55:15.9 -26:17:49  2.0 10.42  10
PPM 234421     18:21:23.0 -18:51:36  5.9  0.46  20
PPM 234480     18:24:03.6 -19:23:37  7.9  0.49  19
PPM 234447     18:22:47.2 -18:43:09  9.5  0.25  20
03LD9          18:23:17.9 -18:56:10 14.6        19
Positions are for J2000

Event circumstances last updated at 2022/03/13 02:13:56 UT

Marc W. Buie, Southwest Research Institute

RECON