RECON: TNO occultation with 79360

Event between (79360) Sila-Nunam and star GA0980:03610981 with event index number of 2700352

Geocentric closest approach at 2029/02/02 04:35:17 UTC

J2000 position of star is 10:25:11.0 +08:39:14
Equinox of date position of star is 10:26:27.0 +08:31:51
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 19 degrees from the moon. Moon is 88% illuminated.
Apparent brightness V=21.7

[RECON map]
Object is 43.4 AU from the Sun and 42.5 AU from the Earth.
Apparent velocity is 23.4 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 148 seconds.
The 1-sigma cross-track error in the shadow position is 2179 km.
The sky-plane scale is 30818.3 km/arcsec.

The object has an absolute magnitude Hv=5.3
Diameter=527.2 km assuming a 5% albedo -- 22.6 sec chord
Diameter=215.2 km assuming a 30% albedo -- 9.2 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 79360, (2029/02/02 04:34UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:55.2 +11:49:26  1.3  5.30  25
45 Leo         10:29:11.0 +09:36:47  5.8  1.26  19
PPM 156818     10:27:07.0 +08:37:41  7.6  0.16  19
79360          10:26:42.7 +08:30:19 16.9        19
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 5.0 sigma about the mid-time.
The median site spacing is 65.6 km RECON observability=0.2 and success probability=0.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 04:38:43 -42.9 Dark Up 25.1 109.3 Low 04:25:55 - 04:51:32 7596
Kamloops 04:39:05 -35.4 Dark Down 16.7 96.7 Really Low 04:26:17 - 04:51:54 7453
Kelowna 04:39:04 -36.2 Dark Down 17.3 97.2 Really Low 04:26:16 - 04:51:53 7371
Peachland 04:39:06 -36.1 Dark Down 17.2 96.9 Really Low 04:26:17 - 04:51:54 7361
Summerland 04:39:07 -36.2 Dark Down 17.2 97.0 Really Low 04:26:19 - 04:51:56 7346
Penticton 04:39:07 -36.3 Dark Down 17.3 97.0 Really Low 04:26:19 - 04:51:56 7339
Oliver 04:39:05 -36.4 Dark Down 17.4 96.9 Really Low 04:26:17 - 04:51:54 7304
Anarchist Mountain Observatory 04:39:06 -36.5 Dark Down 17.5 97.0 Really Low 04:26:17 - 04:51:54 7287
Victoria 04:39:11 -34.1 Dark Down 14.9 93.8 Really Low 04:26:23 - 04:52:00 7252
Okanogan 04:39:08 -36.6 Dark Down 17.4 96.7 Really Low 04:26:20 - 04:51:57 7223
Brewster 04:39:10 -36.5 Dark Down 17.3 96.4 Really Low 04:26:22 - 04:51:59 7197
Manson/Chelan 04:39:09 -36.4 Dark Down 17.1 96.1 Really Low 04:26:20 - 04:51:57 7177
Wenatchee 04:39:10 -36.4 Dark Down 17.1 95.8 Really Low 04:26:22 - 04:51:59 7130
Ellensburg 04:39:11 -36.4 Dark Down 16.9 95.5 Really Low 04:26:23 - 04:52:00 7089
Yakima 04:39:13 -36.5 Dark Down 17.0 95.4 Really Low 04:26:25 - 04:52:02 7048
Toppenish/White Swan 04:39:12 -36.6 Dark Down 17.1 95.4 Really Low 04:26:24 - 04:52:01 7026
PNWRO 04:39:12 -37.7 Dark Down 18.2 96.4 Really Low 04:26:24 - 04:52:01 6984
The Dalles 04:39:15 -36.3 Dark Down 16.6 94.6 Really Low 04:26:27 - 04:52:04 6949
Maupin 04:39:16 -36.5 Dark Down 16.8 94.6 Really Low 04:26:27 - 04:52:04 6906
Sisters 04:39:19 -36.3 Dark Down 16.5 94.0 Really Low 04:26:30 - 04:52:07 6818
Bend 04:39:18 -36.6 Dark Down 16.7 94.1 Really Low 04:26:29 - 04:52:06 6793
Oregon Observatory 04:39:18 -36.5 Dark Down 16.6 93.9 Really Low 04:26:29 - 04:52:06 6775
Chiloquin 04:39:20 -36.5 Dark Down 16.4 93.3 Really Low 04:26:32 - 04:52:09 6641
Klamath Falls 04:39:22 -36.6 Dark Down 16.5 93.2 Really Low 04:26:33 - 04:52:10 6605
Cedarville 04:39:21 -37.9 Dark Down 17.7 94.1 Really Low 04:26:32 - 04:52:09 6526
Fall River/Burney 04:39:23 -37.1 Dark Down 16.8 93.1 Really Low 04:26:34 - 04:52:11 6480
Dunrhomin 04:39:00 -49.1 Dark Up 29.0 104.1 Low 04:26:12 - 04:51:49 6405
Nikitin 04:39:01 -49.1 Dark Up 29.1 104.0 Low 04:26:12 - 04:51:49 6386
Greenville 04:39:23 -37.6 Dark Down 17.2 93.2 Really Low 04:26:35 - 04:52:12 6383
Gimple 04:39:25 -37.7 Dark Down 17.3 93.2 Really Low 04:26:36 - 04:52:13 6383
CU-SBO 04:39:01 -49.1 Dark Up 29.0 103.9 Low 04:26:12 - 04:51:49 6378
Quincy 04:39:26 -37.7 Dark Down 17.2 93.1 Really Low 04:26:37 - 04:52:14 6362
Portola 04:39:24 -38.0 Dark Down 17.6 93.4 Really Low 04:26:35 - 04:52:12 6347
Reno 04:39:23 -38.6 Dark Down 18.1 93.7 Really Low 04:26:35 - 04:52:12 6316
Carson City 04:39:24 -38.7 Dark Down 18.2 93.6 Really Low 04:26:36 - 04:52:13 6278
Yerington 04:39:23 -39.2 Dark Down 18.7 94.0 Really Low 04:26:35 - 04:52:12 6256
Gardnerville 04:39:25 -38.8 Dark Down 18.2 93.6 Really Low 04:26:36 - 04:52:13 6252
Hawthorne 04:39:24 -39.7 Dark Down 19.1 94.1 Really Low 04:26:35 - 04:52:12 6205
Lee Vining 04:39:25 -39.4 Dark Down 18.8 93.6 Really Low 04:26:36 - 04:52:13 6146
Bishop 04:39:26 -40.1 Dark Up 19.4 93.9 Really Low 04:26:37 - 04:52:14 6080
Beatty 04:39:23 -41.4 Dark Up 20.7 94.7 Low 04:26:35 - 04:52:12 6027
Patrick 04:39:20 -44.0 Dark Up 23.2 95.9 Low 04:26:31 - 04:52:08 5865
Laughlin/Bullhead City 04:39:22 -43.5 Dark Up 22.6 95.4 Low 04:26:34 - 04:52:11 5839
Lake Havasu City 04:39:22 -43.8 Dark Up 22.9 95.3 Low 04:26:33 - 04:52:10 5766
Wildwood 04:39:30 -40.4 Dark Up 19.4 92.6 Really Low 04:26:42 - 04:52:19 5728
Idyllwild 04:39:27 -42.0 Dark Up 21.0 93.6 Low 04:26:38 - 04:52:15 5685
George/Scottsdale 04:39:19 -46.0 Dark Up 25.0 96.4 Low 04:26:30 - 04:52:07 5683
Calipatria 04:39:25 -43.0 Dark Up 22.0 94.0 Low 04:26:37 - 04:52:14 5618
Yuma 04:39:24 -43.8 Dark Up 22.8 94.3 Low 04:26:36 - 04:52:13 5570

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 79360, (2029/02/02 04:34UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3  5.30  25
45 Leo         10:27:39.0 +09:45:44  5.8  1.26  19
PPM 156818     10:25:35.1 +08:46:36  7.6  0.16  19
79360          10:25:11.0 +08:39:14 16.9        19
Positions are for J2000

Event circumstances last updated at 2024/01/31 03:25:30 UT

Marc W. Buie, Southwest Research Institute

RECON