RECON: TNO occultation with 03LD9

Event between 03LD9 and star GA0700:23352922 with event index number of 1662728

Geocentric closest approach at 2022/06/03 06:43:39 UTC

J2000 position of star is 18:24:19.0 -18:56:16
Equinox of date position of star is 18:25:37.3 -18:55:28
Stellar brightness G=16.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 160 degrees from the moon. Moon is 13% illuminated.
TNO apparent brightness V=23.0

[RECON map]
TNO is 43.1 AU from the Sun and 42.1 AU from the Earth.
The TNO is moving 22.2 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 739 seconds.
The 1-sigma cross-track error in the shadow position is 3454 km.
The sky-plane scale is 30554.4 km/arcsec.

The TNO has an absolute magnitude Hv=6.6
Diameter=295.1 km assuming a 5% albedo -- 13.3 sec chord
Diameter=120.5 km assuming a 30% albedo -- 5.4 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 03LD9, (2022/06/03 06:44UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.1 -26:28:47  0.9 27.48 136
Nunki          18:56:39.2 -26:16:01  2.0 10.25 168
PPM 234421     18:22:42.1 -18:50:53  5.9  0.70 159
PPM 234508     18:26:18.8 -18:31:29  7.3  0.43 160
PPM 234502     18:26:02.8 -18:43:21  9.4  0.22 160
03LD9          18:25:38.1 -18:55:27 16.0       160
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 1.2 sigma about the mid-time.
The median site spacing is 19.0 km RECON observability=0.4 and success probability=5.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 06:45:10 -15.5 AT Down 14.6 151.7 Really Low 06:30:10 - 07:00:10 1237
Kamloops 06:45:49 -15.2 AT Up 10.7 138.7 Really Low 06:30:49 - 07:00:49 971
Kelowna 06:45:49 -16.2 AT Up 11.7 139.4 Really Low 06:30:49 - 07:00:49 946
Peachland 06:45:50 -16.2 AT Up 11.6 139.1 Really Low 06:30:50 - 07:00:50 936
Summerland 06:45:50 -16.4 AT Up 11.8 139.2 Really Low 06:30:50 - 07:00:50 931
Penticton 06:45:50 -16.5 AT Up 11.9 139.3 Really Low 06:30:50 - 07:00:50 929
Oliver 06:45:50 -16.8 AT Up 12.2 139.2 Really Low 06:30:50 - 07:00:50 912
Anarchist Mountain Observatory 06:45:50 -17.0 AT Up 12.4 139.4 Really Low 06:30:50 - 07:00:50 907
Tonasket 06:45:51 -17.3 AT Up 12.6 139.3 Really Low 06:30:51 - 07:00:51 890
Okanogan 06:45:53 -17.6 AT Up 12.8 139.1 Really Low 06:30:53 - 07:00:53 870
Brewster 06:45:54 -17.8 AT Up 12.9 138.9 Really Low 06:30:54 - 07:00:54 853
Manson/Chelan 06:45:55 -17.9 AT Up 12.9 138.5 Really Low 06:30:55 - 07:00:55 836
Victoria 06:46:01 -16.6 AT Up 10.9 135.9 Really Low 06:31:01 - 07:01:01 811
Wenatchee 06:45:57 -18.3 Dark Up 13.2 138.3 Really Low 06:30:57 - 07:00:57 808
Ellensburg 06:45:58 -18.7 Dark Up 13.4 138.1 Really Low 06:30:58 - 07:00:58 782
Yakima 06:45:59 -19.1 Dark Up 13.7 138.0 Really Low 06:30:59 - 07:00:59 760
PNWRO 06:45:57 -20.0 Dark Up 14.9 139.3 Really Low 06:30:57 - 07:00:57 758
Toppenish/White Swan 06:46:00 -19.3 Dark Up 13.9 138.1 Really Low 06:31:00 - 07:01:00 751
Goldendale 06:46:02 -19.7 Dark Up 14.1 137.7 Really Low 06:31:02 - 07:01:02 713
The Dalles 06:46:03 -19.9 Dark Up 14.1 137.3 Really Low 06:31:03 - 07:01:03 694
Maupin 06:46:04 -20.3 Dark Up 14.5 137.3 Really Low 06:31:04 - 07:01:04 673
Dunrhomin 06:45:27 -27.4 Dark Down 25.3 150.4 Low 06:30:27 - 07:00:27 650
CU-SBO 06:45:28 -27.6 Dark Down 25.4 150.3 Low 06:30:28 - 07:00:28 634
Sisters 06:46:08 -21.0 Dark Up 14.9 136.8 Really Low 06:31:08 - 07:01:08 613
Bend 06:46:08 -21.3 Dark Up 15.2 136.9 Really Low 06:31:08 - 07:01:08 605
Oregon Observatory 06:46:08 -21.4 Dark Up 15.3 136.8 Really Low 06:31:08 - 07:01:08 592
North Lake 06:46:08 -22.2 Dark Up 16.0 137.1 Really Low 06:31:08 - 07:01:08 565
Lakeview 06:46:09 -23.3 Dark Up 17.0 137.4 Really Low 06:31:09 - 07:01:09 512
Chiloquin 06:46:12 -22.6 Dark Up 16.0 136.2 Really Low 06:31:12 - 07:01:12 505
Klamath Falls 06:46:13 -22.9 Dark Up 16.3 136.2 Really Low 06:31:13 - 07:01:13 486
Cedarville 06:46:10 -24.0 Dark Down 17.6 137.4 Really Low 06:31:10 - 07:01:10 475
Fall River/Burney 06:46:15 -24.1 Dark Down 17.4 136.3 Really Low 06:31:15 - 07:01:15 420
Susanville 06:46:14 -24.9 Dark Down 18.2 136.8 Really Low 06:31:14 - 07:01:14 395
Gimple 06:46:15 -25.1 Dark Down 18.3 136.5 Really Low 06:31:15 - 07:01:15 373
Greenville 06:46:15 -25.1 Dark Down 18.2 136.5 Really Low 06:31:15 - 07:01:15 371
Portola 06:46:15 -25.5 Dark Down 18.7 136.8 Really Low 06:31:15 - 07:01:15 360
Quincy 06:46:16 -25.3 Dark Down 18.4 136.4 Really Low 06:31:16 - 07:01:16 358
Reno 06:46:14 -25.9 Dark Down 19.3 137.3 Really Low 06:31:14 - 07:01:14 356
Carson City 06:46:14 -26.3 Dark Down 19.5 137.2 Really Low 06:31:14 - 07:01:14 333
Yerington 06:46:13 -26.6 Dark Down 20.0 137.7 Low 06:31:13 - 07:01:13 333
Gardnerville 06:46:15 -26.5 Dark Down 19.8 137.2 Really Low 06:31:15 - 07:01:15 318
Hawthorne 06:46:12 -27.2 Dark Down 20.6 138.0 Low 06:31:12 - 07:01:12 312
Tonopah 06:46:09 -28.0 Dark Down 21.7 139.1 Low 06:31:09 - 07:01:09 310
Lee Vining 06:46:15 -27.6 Dark Down 20.8 137.5 Low 06:31:15 - 07:01:15 266
Beatty 06:46:10 -29.2 Dark Down 22.8 139.2 Low 06:31:10 - 07:01:10 240
Bishop 06:46:14 -28.4 Dark Down 21.6 137.9 Low 06:31:14 - 07:01:14 239
Indian Springs 06:46:07 -29.7 Dark Down 23.6 140.0 Low 06:31:07 - 07:01:07 239
Henderson 06:46:06 -30.4 Dark Down 24.4 140.4 Low 06:31:06 - 07:01:06 215
Patrick 06:46:03 -31.2 Dark Down 25.5 141.2 Low 06:31:03 - 07:01:03 193
Kingman/Dolan Springs 06:46:05 -31.4 Dark Down 25.5 141.0 Low 06:31:05 - 07:01:05 174
Laughlin/Bullhead City 06:46:06 -31.3 Dark Down 25.3 140.5 Low 06:31:06 - 07:01:06 162
Mohave Valley 06:46:07 -31.6 Dark Down 25.5 140.5 Low 06:31:07 - 07:01:07 143
Lake Havasu City 06:46:07 -32.0 Dark Down 25.9 140.6 Low 06:31:07 - 07:01:07 119
George/Scottsdale 06:46:00 -33.2 Dark Down 27.8 142.5 Low 06:31:00 - 07:01:00 111
Parker 06:46:07 -32.3 Dark Down 26.2 140.5 Low 06:31:07 - 07:01:07 95
Idyllwild 06:46:15 -32.2 Dark Down 25.3 138.3 Low 06:31:15 - 07:01:15 19
Wildwood 06:46:21 -31.4 Dark Down 23.9 136.8 Low 06:31:21 - 07:01:21 6
Calipatria 06:46:13 -33.1 Dark Down 26.4 139.1 Low 06:31:13 - 07:01:13 -3
Yuma 06:46:10 -33.7 Dark Down 27.2 139.7 Low 06:31:10 - 07:01:10 -17

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, (2022/06/03 06:44UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 27.48 136
Nunki          18:55:15.9 -26:17:49  2.0 10.25 168
PPM 234421     18:21:23.0 -18:51:36  5.9  0.70 159
PPM 234508     18:24:59.9 -18:32:20  7.3  0.43 160
PPM 234502     18:24:43.7 -18:44:10  9.4  0.22 160
03LD9          18:24:19.0 -18:56:16 16.0       160
Positions are for J2000

Event circumstances last updated at 2022/03/13 02:13:37 UT

Marc W. Buie, Southwest Research Institute

RECON