RECON: TNO occultation with 612891

Event between (612891) 04TT357 and star GA1060:01365530 with event index number of 2804469

Geocentric closest approach at 2024/11/14 07:42:54 UTC

J2000 position of star is 05:48:38.2 +17:54:56
Equinox of date position of star is 05:49:56.6 +17:55:17
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 57 degrees from the moon. Moon is 96% illuminated.
TNO apparent brightness V=23.3

[RECON map]
TNO is 34.2 AU from the Sun and 33.4 AU from the Earth.
The TNO is moving 19.2 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 397 seconds.
The 1-sigma cross-track error in the shadow position is 3078 km.
The sky-plane scale is 24222.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.9
Diameter=157.8 km assuming a 5% albedo -- 8.2 sec chord
Diameter=64.4 km assuming a 30% albedo -- 3.4 sec chord
Dynamical classification is 5:2EEE
 
 
 
 
 
 

Star training set for 612891, (2024/11/14 07:43UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:31.1 +07:24:35  0.4 10.63  60
Alhena         06:39:08.9 +16:22:33  1.9 11.82  69
PPM 121513     05:53:51.9 +19:52:19  6.4  2.14  58
PPM 121421     05:50:12.2 +18:14:58  7.7  0.33  57
PPM 121433     05:50:40.2 +17:44:50  8.7  0.22  57
612891         05:50:05.4 +17:55:19 16.9        58
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 2.3 sigma about the mid-time.
The median site spacing is 26.8 km RECON observability=1.0 and success probability=1.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 07:44:38 -57.7 Dark Up 45.8 123.9 Up 07:29:38 - 07:59:38 11222
Kelowna 07:44:39 -58.5 Dark Up 46.7 124.3 Up 07:29:39 - 07:59:39 11138
Peachland 07:44:39 -58.6 Dark Up 46.6 123.8 Up 07:29:39 - 07:59:39 11135
Summerland 07:44:40 -58.8 Dark Up 46.7 123.8 Up 07:29:40 - 07:59:40 11121
Victoria 07:44:54 -59.7 Dark Up 45.2 118.8 Up 07:29:54 - 07:59:54 11114
Penticton 07:44:39 -58.8 Dark Up 46.8 123.9 Up 07:29:39 - 07:59:39 11113
Oliver 07:44:40 -59.2 Dark Up 47.0 123.6 Up 07:29:40 - 07:59:40 11084
Anarchist Mountain Observatory 07:44:40 -59.4 Dark Up 47.2 123.6 Up 07:29:40 - 07:59:40 11067
Sleaford 07:43:51 -54.6 Dark Up 51.3 143.2 Up 07:28:51 - 07:58:51 11065
Tonasket 07:44:43 -59.7 Dark Up 47.4 123.3 Up 07:29:43 - 07:59:43 11042
Okanogan 07:44:43 -60.0 Dark Up 47.5 122.8 Up 07:29:43 - 07:59:43 11018
Brewster 07:44:45 -60.3 Dark Up 47.5 122.3 Up 07:29:45 - 07:59:45 10999
Manson/Chelan 07:44:47 -60.5 Dark Up 47.4 121.7 Up 07:29:47 - 07:59:47 10990
Wenatchee 07:44:49 -61.0 Dark Up 47.6 121.1 Up 07:29:49 - 07:59:49 10954
Ellensburg 07:44:52 -61.4 Dark Up 47.7 120.5 Up 07:29:52 - 07:59:52 10924
Yakima 07:44:52 -61.8 Dark Up 47.9 120.1 Up 07:29:52 - 07:59:52 10890
Toppenish/White Swan 07:44:53 -62.0 Dark Up 48.1 120.1 Up 07:29:53 - 07:59:53 10868
Goldendale 07:44:56 -62.6 Dark Up 48.1 119.1 Up 07:29:56 - 07:59:56 10831
The Dalles 07:44:58 -62.8 Dark Up 48.0 118.5 Up 07:29:58 - 07:59:58 10820
PNWRO 07:44:50 -62.4 Dark Up 49.1 121.4 Up 07:29:50 - 07:59:50 10803
Maupin 07:44:59 -63.2 Dark Up 48.3 118.2 Up 07:29:59 - 07:59:59 10781
Sisters 07:45:02 -64.1 Dark Up 48.4 116.8 Up 07:30:02 - 08:00:02 10717
Bend 07:45:02 -64.3 Dark Up 48.6 116.8 Up 07:30:02 - 08:00:02 10690
Oregon Observatory 07:45:03 -64.5 Dark Up 48.6 116.5 Up 07:30:03 - 08:00:03 10678
North Lake 07:45:03 -65.1 Dark Up 49.3 116.4 Up 07:30:03 - 08:00:03 10609
Chiloquin 07:45:09 -65.8 Dark Up 48.9 114.7 Up 07:30:09 - 08:00:09 10573
Klamath Falls 07:45:09 -66.1 Dark Up 49.1 114.5 Up 07:30:09 - 08:00:09 10540
Lakeview 07:45:06 -66.2 Dark Up 50.1 115.9 Up 07:30:06 - 08:00:06 10502
Cedarville 07:45:07 -66.8 Dark Up 50.5 115.4 Up 07:30:07 - 08:00:07 10439
Fall River/Burney 07:45:12 -67.3 Dark Up 49.9 113.6 Up 07:30:12 - 08:00:12 10425
Susanville 07:45:12 -68.0 Dark Up 50.7 113.7 Up 07:30:12 - 08:00:12 10349
Greenville 07:45:14 -68.2 Dark Up 50.6 113.1 Up 07:30:14 - 08:00:14 10332
Gimple 07:45:13 -68.2 Dark Up 50.6 113.1 Up 07:30:13 - 08:00:13 10329
Quincy 07:45:15 -68.4 Dark Up 50.6 112.8 Up 07:30:15 - 08:00:15 10313
Portola 07:45:13 -68.6 Dark Up 51.0 113.2 Up 07:30:13 - 08:00:13 10290
Reno 07:45:12 -68.8 Dark Up 51.6 113.5 Up 07:30:12 - 08:00:12 10249
Carson City 07:45:13 -69.2 Dark Up 51.8 113.1 Up 07:30:13 - 08:00:13 10215
Gardnerville 07:45:12 -69.4 Dark Up 51.9 112.9 Up 07:30:12 - 08:00:12 10191
Yerington 07:45:12 -69.4 Dark Up 52.3 113.6 Up 07:30:12 - 08:00:12 10181
Hawthorne 07:45:10 -69.8 Dark Up 52.8 113.5 Up 07:30:10 - 08:00:10 10124
Lee Vining 07:45:14 -70.4 Dark Up 52.7 112.4 Up 07:30:14 - 08:00:14 10084
Tonopah 07:45:07 -70.2 Dark Up 54.0 114.4 Up 07:30:07 - 08:00:07 10045
Bishop 07:45:14 -70.9 Dark Up 53.5 112.4 Up 07:30:14 - 08:00:14 10009
Dunrhomin 07:44:03 -64.7 Dark Up 60.5 132.6 Up 07:29:03 - 07:59:03 9982
CU-SBO 07:44:03 -65.0 Dark Up 60.6 132.1 Up 07:29:03 - 07:59:03 9961
Beatty 07:45:08 -71.2 Dark Up 54.8 113.4 Up 07:30:08 - 08:00:08 9924
Indian Springs 07:45:06 -71.4 Dark Up 55.8 114.2 Up 07:30:06 - 08:00:06 9865
Henderson 07:45:04 -71.8 Dark Up 56.5 114.2 Up 07:30:04 - 08:00:04 9796
Patrick 07:45:01 -72.1 Dark Up 57.6 114.5 Up 07:30:01 - 08:00:01 9708
Laughlin/Bullhead City 07:45:03 -72.5 Dark Up 57.1 113.4 Up 07:30:03 - 08:00:03 9701
Wildwood 07:45:22 -74.2 Dark Up 54.5 108.0 Up 07:30:22 - 08:00:22 9701
Kingman/Dolan Springs 07:45:02 -72.3 Dark Up 57.5 114.0 Up 07:30:02 - 08:00:02 9691
Mohave Valley 07:45:05 -72.8 Dark Up 57.3 113.0 Up 07:30:05 - 08:00:05 9674
Lake Havasu City 07:45:05 -73.1 Dark Up 57.6 112.7 Up 07:30:05 - 08:00:05 9629
Idyllwild 07:45:16 -74.3 Dark Up 56.1 109.2 Up 07:30:16 - 08:00:16 9616
Parker 07:45:05 -73.4 Dark Up 57.8 112.2 Up 07:30:05 - 08:00:05 9594
Calipatria 07:45:14 -74.7 Dark Up 57.2 109.5 Up 07:30:14 - 08:00:14 9525
George/Scottsdale 07:44:56 -73.0 Dark Up 59.8 114.2 Up 07:29:56 - 07:59:56 9491
Yuma 07:45:11 -74.8 Dark Up 58.0 109.7 Up 07:30:11 - 08:00:11 9459

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 612891, (2024/11/14 07:43UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 10.63  60
Alhena         06:37:42.8 +16:23:56  1.9 11.82  69
PPM 121513     05:52:23.4 +19:52:04  6.4  2.14  58
PPM 121421     05:48:44.8 +18:14:35  7.7  0.33  57
PPM 121433     05:49:13.1 +17:44:29  8.7  0.22  57
612891         05:48:38.2 +17:54:56 16.9        57
Positions are for J2000

Event circumstances last updated at 2022/05/03 23:52:42 UT

Marc W. Buie, Southwest Research Institute

RECON