RECON: TNO occultation with 03LD9

Event between 03LD9 and star GA0700:23516183 with event index number of 1662715

Geocentric closest approach at 2022/05/26 06:57:10 UTC

J2000 position of star is 18:24:52.9 -18:56:29
Equinox of date position of star is 18:26:11.3 -18:55:40
Stellar brightness G=16.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 102 degrees from the moon. Moon is 16% illuminated.
TNO apparent brightness V=23.0

[RECON map]
TNO is 43.1 AU from the Sun and 42.2 AU from the Earth.
The TNO is moving 20.4 km/sec on the sky relative to the star, or, 2.4 arcsec/hr.
The 1-sigma error in the time of the event is 829 seconds.
The 1-sigma cross-track error in the shadow position is 4279 km.
The sky-plane scale is 30597.7 km/arcsec.

The TNO has an absolute magnitude Hv=6.6
Diameter=295.1 km assuming a 5% albedo -- 14.5 sec chord
Diameter=120.5 km assuming a 30% albedo -- 5.9 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 03LD9, (2022/05/26 06:57UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.1 -26:28:47  0.9 27.60 128
Nunki          18:56:39.2 -26:16:01  2.0 10.16  95
PPM 234421     18:22:42.0 -18:50:53  5.9  0.83 103
PPM 234508     18:26:18.7 -18:31:29  7.3  0.40 102
PPM 234517     18:26:35.2 -19:02:27  9.0  0.15 102
03LD9          18:26:12.0 -18:55:39 16.6       102
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 1.1 sigma about the mid-time.
The median site spacing is 19.5 km RECON observability=0.3 and success probability=4.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 06:59:07 -16.8 AT Down 13.2 147.5 Really Low 06:44:07 - 07:14:07 -56
Kamloops 06:59:47 -17.0 AT Down 8.7 134.9 Really Low 06:44:47 - 07:14:47 -358
Kelowna 06:59:48 -18.0 AT Down 9.7 135.5 Really Low 06:44:48 - 07:14:48 -382
Peachland 06:59:49 -18.0 Dark Down 9.6 135.3 Really Low 06:44:49 - 07:14:49 -393
Summerland 06:59:49 -18.2 Dark Down 9.8 135.3 Really Low 06:44:49 - 07:14:49 -399
Penticton 06:59:49 -18.3 Dark Down 9.9 135.4 Really Low 06:44:49 - 07:14:49 -401
Oliver 06:59:50 -18.6 Dark Down 10.1 135.4 Really Low 06:44:50 - 07:14:50 -419
Anarchist Mountain Observatory 06:59:50 -18.8 Dark Down 10.4 135.5 Really Low 06:44:50 - 07:14:50 -424
Tonasket 06:59:51 -19.1 Dark Down 10.5 135.4 Really Low 06:44:51 - 07:14:51 -442
Okanogan 06:59:53 -19.4 Dark Down 10.7 135.2 Really Low 06:44:53 - 07:14:53 -463
Brewster 06:59:54 -19.6 Dark Down 10.8 135.0 Really Low 06:44:54 - 07:14:54 -481
Manson/Chelan 06:59:55 -19.8 Dark Down 10.8 134.7 Really Low 06:44:55 - 07:14:55 -500
Wenatchee 06:59:57 -20.2 Dark Down 11.0 134.5 Really Low 06:44:57 - 07:14:57 -529
Victoria 07:00:01 -18.6 Dark Down 8.8 132.1 Really Low 06:45:01 - 07:15:01 -530
Ellensburg 06:59:59 -20.6 Dark Down 11.2 134.3 Really Low 06:44:59 - 07:14:59 -556
PNWRO 06:59:57 -21.8 Dark Down 12.7 135.5 Really Low 06:44:57 - 07:14:57 -579
Yakima 07:00:00 -21.0 Dark Down 11.5 134.2 Really Low 06:45:00 - 07:15:00 -580
Toppenish/White Swan 07:00:00 -21.2 Dark Down 11.7 134.3 Really Low 06:45:00 - 07:15:00 -589
Goldendale 07:00:03 -21.7 Dark Down 11.9 133.9 Really Low 06:45:03 - 07:15:03 -629
The Dalles 07:00:04 -21.8 Dark Down 11.9 133.6 Really Low 06:45:04 - 07:15:04 -650
Dunrhomin 06:59:29 -28.6 Dark Down 23.4 146.2 Low 06:44:29 - 07:14:29 -663
Maupin 07:00:05 -22.2 Dark Down 12.2 133.6 Really Low 06:45:05 - 07:15:05 -672
CU-SBO 06:59:30 -28.9 Dark Down 23.6 146.0 Low 06:44:30 - 07:14:30 -680
Sisters 07:00:09 -23.0 Dark Down 12.6 133.1 Really Low 06:45:09 - 07:15:09 -734
Bend 07:00:09 -23.3 Dark Down 12.9 133.2 Really Low 06:45:09 - 07:15:09 -743
Oregon Observatory 07:00:10 -23.4 Dark Down 13.0 133.1 Really Low 06:45:10 - 07:15:10 -756
North Lake 07:00:10 -24.1 Dark Down 13.7 133.4 Really Low 06:45:10 - 07:15:10 -784
Lakeview 07:00:12 -25.3 Dark Down 14.7 133.7 Really Low 06:45:12 - 07:15:12 -839
Chiloquin 07:00:14 -24.6 Dark Down 13.6 132.6 Really Low 06:45:14 - 07:15:14 -847
Klamath Falls 07:00:15 -24.9 Dark Down 13.9 132.6 Really Low 06:45:15 - 07:15:15 -867
Cedarville 07:00:13 -25.9 Dark Down 15.3 133.7 Really Low 06:45:13 - 07:15:13 -877
Fall River/Burney 07:00:17 -26.2 Dark Down 14.9 132.6 Really Low 06:45:17 - 07:15:17 -935
Susanville 07:00:17 -26.9 Dark Down 15.8 133.1 Really Low 06:45:17 - 07:15:17 -960
Gimple 07:00:18 -27.1 Dark Down 15.8 132.9 Really Low 06:45:18 - 07:15:18 -983
Greenville 07:00:18 -27.1 Dark Down 15.8 132.8 Really Low 06:45:18 - 07:15:18 -985
Portola 07:00:18 -27.5 Dark Down 16.3 133.1 Really Low 06:45:18 - 07:15:18 -996
Quincy 07:00:19 -27.3 Dark Down 15.9 132.8 Really Low 06:45:19 - 07:15:19 -998
Reno 07:00:17 -27.9 Dark Down 16.8 133.6 Really Low 06:45:17 - 07:15:17 -999
Yerington 07:00:16 -28.6 Dark Down 17.6 134.0 Really Low 06:45:16 - 07:15:16 -1022
Carson City 07:00:18 -28.3 Dark Down 17.1 133.5 Really Low 06:45:18 - 07:15:18 -1023
Gardnerville 07:00:18 -28.5 Dark Down 17.3 133.5 Really Low 06:45:18 - 07:15:18 -1038
Hawthorne 07:00:16 -29.1 Dark Down 18.2 134.3 Really Low 06:45:16 - 07:15:16 -1041
Tonopah 07:00:13 -29.8 Dark Down 19.3 135.3 Really Low 06:45:13 - 07:15:13 -1042
Lee Vining 07:00:19 -29.6 Dark Down 18.3 133.8 Really Low 06:45:19 - 07:15:19 -1091
Indian Springs 07:00:11 -31.5 Dark Down 21.2 136.2 Low 06:45:11 - 07:15:11 -1111
Beatty 07:00:14 -31.0 Dark Down 20.4 135.4 Low 06:45:14 - 07:15:14 -1112
Bishop 07:00:18 -30.3 Dark Down 19.1 134.2 Really Low 06:45:18 - 07:15:18 -1116
Henderson 07:00:10 -32.2 Dark Down 22.0 136.6 Low 06:45:10 - 07:15:10 -1134
Patrick 07:00:07 -32.9 Dark Down 23.1 137.4 Low 06:45:07 - 07:15:07 -1154
Kingman/Dolan Springs 07:00:09 -33.1 Dark Down 23.1 137.1 Low 06:45:09 - 07:15:09 -1174
Laughlin/Bullhead City 07:00:10 -33.1 Dark Down 22.9 136.7 Low 06:45:10 - 07:15:10 -1188
Mohave Valley 07:00:11 -33.4 Dark Down 23.1 136.6 Low 06:45:11 - 07:15:11 -1207
Lake Havasu City 07:00:11 -33.8 Dark Down 23.5 136.7 Low 06:45:11 - 07:15:11 -1230
George/Scottsdale 07:00:04 -34.8 Dark Down 25.4 138.5 Low 06:45:04 - 07:15:04 -1233
Parker 07:00:12 -34.1 Dark Down 23.8 136.6 Low 06:45:12 - 07:15:12 -1255
Idyllwild 07:00:20 -34.2 Dark Down 22.7 134.6 Low 06:45:20 - 07:15:20 -1339
Wildwood 07:00:25 -33.5 Dark Down 21.3 133.2 Low 06:45:25 - 07:15:25 -1357
Calipatria 07:00:18 -35.0 Dark Down 23.8 135.3 Low 06:45:18 - 07:15:18 -1358
Yuma 07:00:15 -35.5 Dark Down 24.6 135.9 Low 06:45:15 - 07:15:15 -1370

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, (2022/05/26 06:57UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 27.60 128
Nunki          18:55:15.9 -26:17:49  2.0 10.16  95
PPM 234421     18:21:23.0 -18:51:36  5.9  0.83 103
PPM 234508     18:24:59.9 -18:32:20  7.3  0.40 102
PPM 234517     18:25:16.0 -19:03:18  9.0  0.15 102
03LD9          18:24:52.9 -18:56:29 16.6       102
Positions are for J2000

Event circumstances last updated at 2022/03/13 02:12:47 UT

Marc W. Buie, Southwest Research Institute

RECON