RECON: TNO occultation with 612524

Event between (612524) 02VD130 and star GA1140:03162094 with event index number of 2814355

Geocentric closest approach at 2029/01/16 08:09:52 UTC

J2000 position of star is 08:10:30.3 +24:08:20
Equinox of date position of star is 08:11:50.5 +24:04:17
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 163 degrees from the moon. Moon is 3% illuminated.
TNO apparent brightness V=22.5

[RECON map]
TNO is 33.3 AU from the Sun and 32.3 AU from the Earth.
The TNO is moving 24.4 km/sec on the sky relative to the star, or, 3.7 arcsec/hr.
The 1-sigma error in the time of the event is 968 seconds.
The 1-sigma cross-track error in the shadow position is 5138 km.
The sky-plane scale is 23431.0 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=206.1 km assuming a 5% albedo -- 8.5 sec chord
Diameter=84.1 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is 2:1E+4:2II
 
 
 
 
 
 

Star training set for 612524, (2029/01/16 08:10UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:47:05.6 +27:57:13  1.1  6.86 156
PPM 098486     08:15:24.7 +23:02:53  6.5  1.24 164
PPM 098405     08:11:09.2 +24:44:20  8.3  0.73 162
PPM 098383     08:09:59.9 +24:22:02  9.7  0.60 162
PPM 098421     08:12:07.5 +23:50:03 10.3  0.22 163
612524         08:12:14.2 +24:03:04 15.4       163
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 0.9 sigma about the mid-time.
The median site spacing is 28.1 km RECON observability=1.0 and success probability=5.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:09:51 -56.9 Dark Down 61.0 199.0 Up 07:54:51 - 08:24:51 10037
Kamloops 08:10:30 -60.2 Dark Down 63.3 171.2 Up 07:55:30 - 08:25:30 9663
Kelowna 08:10:29 -61.0 Dark Down 64.1 172.8 Up 07:55:29 - 08:25:29 9595
Peachland 08:10:29 -61.1 Dark Down 64.2 172.2 Up 07:55:29 - 08:25:29 9580
Summerland 08:10:28 -61.3 Dark Down 64.4 172.3 Up 07:55:28 - 08:25:28 9567
Penticton 08:10:28 -61.3 Dark Down 64.5 172.5 Up 07:55:28 - 08:25:28 9562
Oliver 08:10:27 -61.7 Dark Down 64.8 172.4 Up 07:55:27 - 08:25:27 9527
Anarchist Mountain Observatory 08:10:26 -61.8 Dark Down 65.0 172.8 Up 07:55:26 - 08:25:26 9513
Tonasket 08:10:26 -62.1 Dark Down 65.3 172.6 Up 07:55:26 - 08:25:26 9481
Okanogan 08:10:27 -62.5 Dark Down 65.6 172.1 Up 07:55:27 - 08:25:27 9445
Brewster 08:10:27 -62.8 Dark Down 65.9 171.6 Up 07:55:27 - 08:25:27 9415
Victoria 08:10:38 -62.2 Dark Down 64.9 164.0 Up 07:55:38 - 08:25:38 9409
Manson/Chelan 08:10:28 -63.0 Dark Down 66.0 170.7 Up 07:55:28 - 08:25:28 9389
Wenatchee 08:10:28 -63.4 Dark Down 66.5 170.2 Up 07:55:28 - 08:25:28 9338
Ellensburg 08:10:28 -63.9 Dark Down 66.9 169.5 Up 07:55:28 - 08:25:28 9293
Yakima 08:10:28 -64.3 Dark Down 67.3 169.3 Up 07:55:28 - 08:25:28 9252
Toppenish/White Swan 08:10:28 -64.5 Dark Down 67.5 169.6 Up 07:55:28 - 08:25:28 9232
PNWRO 08:10:22 -64.8 Dark Down 68.0 173.0 Up 07:55:22 - 08:25:22 9218
Goldendale 08:10:29 -65.0 Dark Down 68.0 168.3 Up 07:55:29 - 08:25:29 9170
The Dalles 08:10:30 -65.2 Dark Down 68.1 167.3 Up 07:55:30 - 08:25:30 9142
Maupin 08:10:29 -65.7 Dark Down 68.6 167.3 Up 07:55:29 - 08:25:29 9100
Sisters 08:10:30 -66.5 Dark Down 69.3 165.6 Up 07:55:30 - 08:25:30 9003
Bend 08:10:29 -66.8 Dark Down 69.6 166.1 Up 07:55:29 - 08:25:29 8982
Oregon Observatory 08:10:29 -66.9 Dark Down 69.8 165.6 Up 07:55:29 - 08:25:29 8962
Dunrhomin 08:09:33 -66.9 Dark Down 71.6 212.2 Up 07:54:33 - 08:24:33 8910
North Lake 08:10:27 -67.6 Dark Down 70.5 166.6 Up 07:55:27 - 08:25:27 8904
CU-SBO 08:09:32 -67.1 Dark Down 71.8 212.4 Up 07:54:32 - 08:24:32 8882
Chiloquin 08:10:30 -68.2 Dark Down 71.0 163.5 Up 07:55:30 - 08:25:30 8819
Lakeview 08:10:25 -68.7 Dark Down 71.6 167.4 Up 07:55:25 - 08:25:25 8802
Klamath Falls 08:10:29 -68.6 Dark Down 71.3 163.5 Up 07:55:29 - 08:25:29 8785
Cedarville 08:10:24 -69.3 Dark Down 72.3 167.5 Up 07:55:24 - 08:25:24 8737
Fall River/Burney 08:10:27 -69.8 Dark Down 72.5 163.5 Up 07:55:27 - 08:25:27 8667
Susanville 08:10:24 -70.4 Dark Down 73.3 165.2 Up 07:55:24 - 08:25:24 8612
Gimple 08:10:25 -70.7 Dark Down 73.5 164.3 Up 07:55:25 - 08:25:25 8579
Greenville 08:10:25 -70.7 Dark Down 73.5 164.0 Up 07:55:25 - 08:25:25 8578
Quincy 08:10:25 -70.9 Dark Down 73.7 163.8 Up 07:55:25 - 08:25:25 8557
Portola 08:10:23 -71.0 Dark Down 73.9 165.2 Up 07:55:23 - 08:25:23 8551
Reno 08:10:20 -71.3 Dark Down 74.3 167.1 Up 07:55:20 - 08:25:20 8534
Carson City 08:10:20 -71.7 Dark Down 74.6 166.9 Up 07:55:20 - 08:25:20 8496
Yerington 08:10:17 -71.8 Dark Down 74.9 168.8 Up 07:55:17 - 08:25:17 8487
Gardnerville 08:10:20 -71.9 Dark Down 74.9 166.8 Up 07:55:20 - 08:25:20 8471
Hawthorne 08:10:16 -72.3 Dark Down 75.4 170.4 Up 07:55:16 - 08:25:16 8447
Tonopah 08:10:10 -72.6 Dark Down 76.0 175.3 Up 07:55:10 - 08:25:10 8423
Lee Vining 08:10:17 -72.9 Dark Down 75.9 168.2 Up 07:55:17 - 08:25:17 8379
Bishop 08:10:14 -73.4 Dark Down 76.6 170.5 Up 07:55:14 - 08:25:14 8328
Beatty 08:10:08 -73.7 Dark Down 77.2 176.7 Up 07:55:08 - 08:25:08 8309
Indian Springs 08:10:04 -73.8 Dark Down 77.6 181.1 Up 07:55:04 - 08:25:04 8295
Henderson 08:10:01 -74.2 Dark Down 78.1 184.2 Up 07:55:01 - 08:25:01 8253
Patrick 08:09:56 -74.5 Dark Down 78.6 189.5 Up 07:54:56 - 08:24:56 8210
Kingman/Dolan Springs 08:09:57 -74.7 Dark Down 78.8 188.8 Up 07:54:57 - 08:24:57 8182
Laughlin/Bullhead City 08:09:59 -74.9 Dark Down 78.9 186.4 Up 07:54:59 - 08:24:59 8169
Mohave Valley 08:09:58 -75.2 Dark Down 79.2 186.6 Up 07:54:58 - 08:24:58 8140
Lake Havasu City 08:09:57 -75.5 Dark Down 79.6 188.0 Up 07:54:57 - 08:24:57 8103
George/Scottsdale 08:09:47 -75.3 Dark Down 79.8 201.2 Up 07:54:47 - 08:24:47 8075
Parker 08:09:56 -75.8 Dark Down 79.9 188.5 Up 07:54:56 - 08:24:56 8066
Wildwood 08:10:12 -76.7 Dark Down 79.8 166.4 Up 07:55:12 - 08:25:12 7975
Idyllwild 08:10:04 -76.8 Dark Down 80.4 175.8 Up 07:55:04 - 08:25:04 7973
Calipatria 08:10:00 -77.1 Dark Down 81.0 182.3 Up 07:55:00 - 08:25:00 7932
Yuma 08:09:56 -77.2 Dark Down 81.4 187.8 Up 07:54:56 - 08:24:56 7904

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 612524, (2029/01/16 08:10UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1  6.86 156
PPM 098486     08:13:41.6 +23:08:15  6.5  1.24 164
PPM 098405     08:09:24.8 +24:49:34  8.3  0.73 162
PPM 098383     08:08:15.7 +24:27:13  9.7  0.60 162
PPM 098421     08:10:23.8 +23:55:18 10.3  0.22 163
612524         08:10:30.3 +24:08:20 15.4       163
Positions are for J2000

Event circumstances last updated at 2022/06/03 23:04:04 UT

Marc W. Buie, Southwest Research Institute

RECON