RECON: TNO occultation with 07LG38

Event between 07LG38 and star GA0900:07661163 with event index number of 2024817

Geocentric closest approach at 2022/06/05 08:18:14 UTC

J2000 position of star is 18:23:29.0 +01:11:22
Equinox of date position of star is 18:24:36.7 +01:12:09
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 129 degrees from the moon. Moon is 28% 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 22.2 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 205 seconds.
The 1-sigma cross-track error in the shadow position is 2116 km.
The sky-plane scale is 25564.3 km/arcsec.

The TNO has an absolute magnitude Hv=8.2
Diameter=134.9 km assuming a 5% albedo -- 6.1 sec chord
Diameter=55.1 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is 5:2EEE
 
 
 
 
 
 

Star training set for 07LG38, (2022/06/05 08:18UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.2 -26:28:47  0.9 38.98 111
60Bet Oph      17:44:34.9 +04:33:34  2.8 10.54 119
59 Ser         18:28:21.4 +00:12:40  5.6  1.36 130
PPM 165803     18:27:12.0 +00:47:42  7.1  0.76 130
PPM 165686     18:23:29.8 +01:03:59  9.6  0.31 129
07LG38         18:24:37.4 +01:12:09 16.7       129
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 24.2 km RECON observability=1.0 and success probability=10.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:18:39 -13.5 AT Down 39.0 175.6 Up 08:03:39 - 08:33:39 4429
Kamloops 08:19:23 -16.6 AT Up 38.3 157.3 Up 08:04:23 - 08:34:23 4268
Kelowna 08:19:21 -17.4 AT Down 39.3 158.1 Up 08:04:21 - 08:34:21 4211
Peachland 08:19:22 -17.5 AT Down 39.3 157.7 Up 08:04:22 - 08:34:22 4202
Summerland 08:19:22 -17.7 AT Down 39.5 157.8 Up 08:04:22 - 08:34:22 4191
Penticton 08:19:22 -17.7 AT Down 39.6 157.9 Up 08:04:22 - 08:34:22 4186
Oliver 08:19:22 -18.1 Dark Down 39.9 157.8 Up 08:04:22 - 08:34:22 4160
Anarchist Mountain Observatory 08:19:22 -18.2 Dark Down 40.1 158.0 Up 08:04:22 - 08:34:22 4148
Tonasket 08:19:22 -18.6 Dark Down 40.4 157.8 Up 08:04:22 - 08:34:22 4124
Okanogan 08:19:23 -18.9 Dark Down 40.6 157.5 Up 08:04:23 - 08:34:23 4097
Victoria 08:19:35 -18.9 Dark Up 39.4 152.8 Up 08:04:35 - 08:34:35 4094
Brewster 08:19:23 -19.2 Dark Down 40.8 157.2 Up 08:04:23 - 08:34:23 4076
Manson/Chelan 08:19:23 -19.4 Dark Down 40.9 156.6 Up 08:04:23 - 08:34:23 4058
Wenatchee 08:19:23 -19.9 Dark Down 41.3 156.3 Up 08:04:23 - 08:34:23 4021
Ellensburg 08:19:23 -20.3 Dark Down 41.6 155.8 Up 08:04:23 - 08:34:23 3988
Yakima 08:19:23 -20.7 Dark Down 42.0 155.7 Up 08:04:23 - 08:34:23 3956
Toppenish/White Swan 08:19:23 -20.9 Dark Down 42.2 155.8 Up 08:04:23 - 08:34:23 3939
PNWRO 08:19:23 -21.2 Dark Down 43.0 157.6 Up 08:04:23 - 08:34:23 3915
Goldendale 08:19:23 -21.5 Dark Down 42.6 155.0 Up 08:04:23 - 08:34:23 3895
The Dalles 08:19:23 -21.7 Dark Down 42.7 154.5 Up 08:04:23 - 08:34:23 3876
Maupin 08:19:23 -22.2 Dark Down 43.1 154.4 Up 08:04:23 - 08:34:23 3843
Sisters 08:19:23 -23.1 Dark Down 43.8 153.4 Up 08:04:23 - 08:34:23 3772
Bend 08:19:23 -23.3 Dark Down 44.1 153.7 Up 08:04:23 - 08:34:23 3753
Oregon Observatory 08:19:23 -23.5 Dark Down 44.2 153.4 Up 08:04:23 - 08:34:23 3739
North Lake 08:19:23 -24.1 Dark Down 44.9 153.9 Up 08:04:23 - 08:34:23 3686
Chiloquin 08:19:36 -24.8 Dark Down 45.2 152.3 Up 08:04:36 - 08:34:36 3619
Lakeview 08:19:23 -25.1 Dark Down 46.1 154.1 Up 08:04:23 - 08:34:23 3598
Klamath Falls 08:19:35 -25.1 Dark Down 45.6 152.3 Up 08:04:35 - 08:34:35 3590
Cedarville 08:19:23 -25.7 Dark Down 46.7 154.1 Up 08:04:23 - 08:34:23 3543
Dunrhomin 08:18:36 -24.5 Dark Down 50.9 175.8 Up 08:03:36 - 08:33:36 3503
Fall River/Burney 08:19:35 -26.3 Dark Down 46.7 152.2 Up 08:04:35 - 08:34:35 3491
CU-SBO 08:18:37 -24.8 Dark Down 51.1 175.6 Up 08:03:37 - 08:33:37 3481
Susanville 08:19:23 -26.9 Dark Down 47.5 152.9 Up 08:04:23 - 08:34:23 3448
Gimple 08:19:34 -27.2 Dark Down 47.7 152.5 Up 08:04:34 - 08:34:34 3414
Greenville 08:19:34 -27.2 Dark Down 47.7 152.4 Up 08:04:34 - 08:34:34 3414
Quincy 08:19:35 -27.4 Dark Down 47.9 152.3 Up 08:04:35 - 08:34:35 3396
Portola 08:19:23 -27.5 Dark Down 48.1 152.8 Up 08:04:23 - 08:34:23 3396
Reno 08:19:23 -27.7 Dark Down 48.6 153.6 Up 08:04:23 - 08:34:23 3372
Carson City 08:19:23 -28.0 Dark Down 48.9 153.5 Up 08:04:23 - 08:34:23 3341
Yerington 08:19:23 -28.2 Dark Down 49.3 154.3 Up 08:04:23 - 08:34:23 3324
Gardnerville 08:19:23 -28.3 Dark Down 49.2 153.4 Up 08:04:23 - 08:34:23 3319
Hawthorne 08:19:23 -28.6 Dark Down 49.9 154.8 Up 08:04:23 - 08:34:23 3284
Tonopah 08:19:23 -28.9 Dark Down 50.8 156.7 Up 08:04:23 - 08:34:23 3248
Lee Vining 08:19:23 -29.2 Dark Down 50.3 153.8 Up 08:04:23 - 08:34:23 3233
Bishop 08:19:23 -29.7 Dark Down 51.0 154.6 Up 08:04:23 - 08:34:23 3180
Beatty 08:19:21 -30.0 Dark Down 52.0 156.8 Up 08:04:21 - 08:34:21 3145
Indian Springs 08:19:17 -30.2 Dark Down 52.6 158.3 Up 08:04:17 - 08:34:17 3121
Henderson 08:19:14 -30.6 Dark Down 53.3 159.1 Up 08:04:14 - 08:34:14 3075
Patrick 08:19:10 -31.0 Dark Down 54.2 160.6 Up 08:04:10 - 08:34:10 3024
Kingman/Dolan Springs 08:19:11 -31.3 Dark Down 54.4 160.2 Up 08:04:11 - 08:34:11 3002
Laughlin/Bullhead City 08:19:13 -31.4 Dark Down 54.3 159.3 Up 08:04:13 - 08:34:13 2997
Mohave Valley 08:19:13 -31.7 Dark Down 54.5 159.2 Up 08:04:13 - 08:34:13 2971
Lake Havasu City 08:19:12 -32.0 Dark Down 55.0 159.4 Up 08:04:12 - 08:34:12 2936
Parker 08:19:13 -32.4 Dark Down 55.3 159.3 Up 08:04:13 - 08:34:13 2903
Wildwood 08:19:23 -33.0 Dark Down 53.9 152.3 Up 08:04:23 - 08:34:23 2880
George/Scottsdale 08:19:03 -32.3 Dark Down 56.3 163.2 Up 08:04:03 - 08:34:03 2876
Idyllwild 08:19:22 -33.1 Dark Down 54.9 155.1 Up 08:04:22 - 08:34:22 2852
Calipatria 08:19:17 -33.6 Dark Down 55.9 156.7 Up 08:04:17 - 08:34:17 2800
Yuma 08:19:14 -33.8 Dark Down 56.6 158.0 Up 08:04:14 - 08:34:14 2764

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, (2022/06/05 08:18UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 38.98 111
60Bet Oph      17:43:28.3 +04:34:06  2.8 10.54 119
59 Ser         18:27:12.5 +00:11:46  5.6  1.36 130
PPM 165803     18:26:03.5 +00:46:50  7.1  0.76 130
PPM 165686     18:22:21.4 +01:03:14  9.6  0.31 129
07LG38         18:23:29.0 +01:11:22 16.7       129
Positions are for J2000

Event circumstances last updated at 2022/03/14 01:02:58 UT

Marc W. Buie, Southwest Research Institute

RECON