RECON: TNO occultation with 06QG181

Event between 06QG181 and star GA1180:01752243 with event index number of 2013305

Geocentric closest approach at 2024/01/01 05:51:35 UTC

J2000 position of star is 05:45:47.6 +28:58:16
Equinox of date position of star is 05:47:18.5 +28:58:44
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 72 degrees from the moon. Moon is 76% illuminated.
Apparent brightness V=24.5

[RECON map]
Object is 35.6 AU from the Sun and 34.6 AU from the Earth.
Apparent velocity is 24.6 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 638 seconds.
The 1-sigma cross-track error in the shadow position is 2334 km.
The sky-plane scale is 25105.1 km/arcsec.

The object has an absolute magnitude Hv=9.0
Diameter=94.6 km assuming a 5% albedo -- 3.8 sec chord
Diameter=38.6 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 06QG181, (2024/01/01 05:52UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:18.0 +16:33:21  0.8 20.32  89
Alnath         05:27:48.7 +28:37:32  1.6  4.29  76
PPM 094619     05:40:49.9 +29:13:36  5.9  1.44  73
PPM 094804     05:47:03.5 +29:18:24  8.0  0.33  72
PPM 094799     05:46:52.6 +29:09:57  9.9  0.21  72
PPM 094823     05:47:27.8 +29:08:13 10.1  0.16  72
06QG181        05:47:19.1 +28:58:44 16.7        71
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 32.0 km RECON observability=1.0 and success probability=22.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 05:51:44 -57.6 Dark Up 66.7 171.0 Up 05:36:44 - 06:06:44 2897
Kamloops 05:52:25 -52.3 Dark Up 64.3 140.7 Up 05:37:25 - 06:07:25 2883
Kelowna 05:52:24 -53.3 Dark Up 65.3 141.2 Up 05:37:24 - 06:07:24 2789
Peachland 05:52:25 -53.2 Dark Up 65.3 140.5 Up 05:37:25 - 06:07:25 2782
Summerland 05:52:25 -53.3 Dark Up 65.4 140.5 Up 05:37:25 - 06:07:25 2766
Penticton 05:52:25 -53.4 Dark Up 65.5 140.6 Up 05:37:25 - 06:07:25 2758
Oliver 05:52:25 -53.6 Dark Up 65.8 140.1 Up 05:37:25 - 06:07:25 2722
Victoria 05:52:37 -51.8 Dark Up 64.5 132.3 Up 05:37:37 - 06:07:37 2709
Anarchist Mountain Observatory 05:52:25 -53.8 Dark Up 66.0 140.2 Up 05:37:25 - 06:07:25 2702
Okanogan 05:52:26 -54.0 Dark Up 66.4 138.9 Up 05:37:26 - 06:07:26 2639
Brewster 05:52:27 -54.1 Dark Up 66.5 138.1 Up 05:37:27 - 06:07:27 2614
Manson/Chelan 05:52:28 -54.0 Dark Up 66.5 137.1 Up 05:37:28 - 06:07:28 2598
Wenatchee 05:52:29 -54.1 Dark Up 66.8 136.0 Up 05:37:29 - 06:07:29 2551
Ellensburg 05:52:30 -54.2 Dark Up 66.9 134.9 Up 05:37:30 - 06:07:30 2512
Yakima 05:52:31 -54.4 Dark Up 67.2 134.2 Up 05:37:31 - 06:07:31 2470
Toppenish/White Swan 05:52:31 -54.6 Dark Up 67.5 134.2 Up 05:37:31 - 06:07:31 2446
PNWRO 05:52:27 -55.7 Dark Up 68.4 136.4 Up 05:37:27 - 06:07:27 2387
The Dalles 05:52:34 -54.5 Dark Up 67.6 131.3 Up 05:37:34 - 06:07:34 2377
Maupin 05:52:34 -54.8 Dark Up 67.9 130.7 Up 05:37:34 - 06:07:34 2332
Sisters 05:52:36 -54.9 Dark Up 68.2 128.2 Up 05:37:36 - 06:07:36 2248
Bend 05:52:36 -55.2 Dark Up 68.5 128.2 Up 05:37:36 - 06:07:36 2219
Oregon Observatory 05:52:37 -55.1 Dark Up 68.5 127.6 Up 05:37:37 - 06:07:37 2203
Chiloquin 05:52:39 -55.4 Dark Up 69.1 124.1 Up 05:37:39 - 06:07:39 2072
Klamath Falls 05:52:40 -55.6 Dark Up 69.3 123.5 Up 05:37:40 - 06:07:40 2035
Cedarville 05:52:35 -57.0 Dark Up 70.7 124.8 Up 05:37:35 - 06:07:35 1936
Fall River/Burney 05:52:40 -56.3 Dark Up 70.2 121.5 Up 05:37:40 - 06:07:40 1904
Greenville 05:52:39 -57.0 Dark Up 70.9 120.1 Up 05:37:39 - 06:07:39 1801
Gimple 05:52:39 -57.0 Dark Up 71.0 120.2 Up 05:37:39 - 06:07:39 1799
Quincy 05:52:40 -57.0 Dark Up 71.1 119.6 Up 05:37:40 - 06:07:40 1779
Portola 05:52:38 -57.4 Dark Up 71.4 120.1 Up 05:37:38 - 06:07:38 1758
Reno 05:52:36 -58.0 Dark Up 72.0 120.5 Up 05:37:36 - 06:07:36 1720
Carson City 05:52:36 -58.1 Dark Up 72.2 119.6 Up 05:37:36 - 06:07:36 1681
Gardnerville 05:52:37 -58.3 Dark Up 72.3 119.0 Up 05:37:37 - 06:07:37 1654
Yerington 05:52:35 -58.7 Dark Up 72.7 120.2 Up 05:37:35 - 06:07:35 1650
Dunrhomin 05:51:47 -67.0 Dark Up 78.4 165.6 Up 05:36:47 - 06:06:47 1643
Nikitin 05:51:47 -67.2 Dark Up 78.6 165.3 Up 05:36:47 - 06:06:47 1623
CU-SBO 05:51:47 -67.2 Dark Up 78.6 164.9 Up 05:36:47 - 06:06:47 1617
Hawthorne 05:52:33 -59.2 Dark Up 73.3 119.9 Up 05:37:33 - 06:07:33 1593
Lee Vining 05:52:36 -59.0 Dark Up 73.2 117.4 Up 05:37:36 - 06:07:36 1539
Bishop 05:52:34 -59.8 Dark Up 74.0 116.9 Up 05:37:34 - 06:07:34 1464
Beatty 05:52:28 -61.1 Dark Up 75.4 118.6 Up 05:37:28 - 06:07:28 1390
Patrick 05:52:20 -63.8 Dark Up 78.1 119.5 Up 05:37:20 - 06:07:20 1191
Laughlin/Bullhead City 05:52:22 -63.4 Dark Up 77.7 116.8 Up 05:37:22 - 06:07:22 1173
Wildwood 05:52:37 -60.6 Dark Up 75.1 105.5 Up 05:37:37 - 06:07:37 1113
Lake Havasu City 05:52:22 -63.8 Dark Up 78.2 114.5 Up 05:37:22 - 06:07:22 1096
Idyllwild 05:52:31 -62.2 Dark Up 76.6 106.9 Up 05:37:31 - 06:07:31 1046
George/Scottsdale 05:52:13 -66.0 Dark Up 80.3 116.8 Up 05:37:13 - 06:07:13 982
Calipatria 05:52:27 -63.3 Dark Up 77.7 106.2 Up 05:37:27 - 06:07:27 963
Yuma 05:52:24 -64.1 Dark Up 78.6 105.7 Up 05:37:24 - 06:07:24 903

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 06QG181, (2024/01/01 05:52UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 20.32  89
Alnath         05:26:17.6 +28:36:23  1.6  4.29  76
PPM 094619     05:39:18.3 +29:12:54  5.9  1.44  73
PPM 094804     05:45:31.7 +29:17:55  8.0  0.33  72
PPM 094799     05:45:20.9 +29:09:28  9.9  0.21  72
PPM 094823     05:45:56.2 +29:07:46 10.1  0.16  72
06QG181        05:45:47.6 +28:58:16 16.7        72
Positions are for J2000

Event circumstances last updated at 2023/11/04 04:08:03 UT

Marc W. Buie, Southwest Research Institute

RECON