RECON: TNO occultation with 459865

Event between (459865) 13XZ8 and star GA0800:21886711 with event index number of 2776605

Geocentric closest approach at 2029/06/22 07:57:06 UTC

J2000 position of star is 19:50:55.2 -08:23:00
Equinox of date position of star is 19:52:07.2 -08:19:33
Stellar brightness G=14.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 79 degrees from the moon. Moon is 82% illuminated.
TNO apparent brightness V=20.7

[RECON map]
TNO is 12.6 AU from the Sun and 11.7 AU from the Earth.
The TNO is moving 19.3 km/sec on the sky relative to the star, or, 8.2 arcsec/hr.
The 1-sigma error in the time of the event is 270 seconds.
The 1-sigma cross-track error in the shadow position is 3124 km.
The sky-plane scale is 8487.0 km/arcsec.

The TNO has an absolute magnitude Hv=9.6
Diameter=70.8 km assuming a 5% albedo -- 3.7 sec chord
Diameter=28.9 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 459865, (2029/06/22 07:57UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:59:16.2 -29:27:54  1.2 48.54 110
Tarazed        19:47:39.6 +10:41:13  2.7 19.03  84
56 Aql         19:55:44.1 -08:29:44  5.4  0.82  80
PPM 203390     19:54:20.9 -07:37:10  8.1  0.82  80
PPM 203353     19:52:30.1 -08:09:38  9.3  0.15  79
459865         19:52:30.9 -08:18:24 14.7        79
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 3.3 sigma about the mid-time.
The median site spacing is 20.3 km RECON observability=1.0 and success probability=10.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 07:58:15 -13.6 AT Down 28.5 165.0 Low 07:43:15 - 08:13:15 3056
Kamloops 07:59:10 -15.9 AT Up 26.3 149.3 Low 07:44:10 - 08:14:10 2832
Kelowna 07:59:08 -16.7 AT Up 27.3 150.1 Low 07:44:08 - 08:14:08 2791
Peachland 07:59:09 -16.8 AT Up 27.3 149.7 Low 07:44:09 - 08:14:09 2780
Summerland 07:59:10 -17.0 AT Up 27.5 149.8 Low 07:44:10 - 08:14:10 2772
Penticton 07:59:09 -17.0 AT Up 27.6 149.9 Low 07:44:09 - 08:14:09 2769
Oliver 07:59:10 -17.4 AT Up 27.9 149.8 Low 07:44:10 - 08:14:10 2746
Anarchist Mountain Observatory 07:59:09 -17.6 AT Up 28.1 150.0 Low 07:44:09 - 08:14:09 2738
Tonasket 07:59:10 -17.9 AT Up 28.3 149.8 Low 07:44:10 - 08:14:10 2716
Okanogan 07:59:11 -18.2 Dark Up 28.6 149.6 Low 07:44:11 - 08:14:11 2693
Brewster 07:59:13 -18.5 Dark Up 28.7 149.3 Low 07:44:13 - 08:14:13 2673
Victoria 07:59:23 -18.0 AT Up 27.1 145.7 Low 07:44:23 - 08:14:23 2660
Manson/Chelan 07:59:14 -18.7 Dark Up 28.8 148.8 Low 07:44:14 - 08:14:14 2655
Wenatchee 07:59:15 -19.2 Dark Up 29.1 148.5 Low 07:44:15 - 08:14:15 2621
Ellensburg 07:59:17 -19.6 Dark Up 29.4 148.2 Low 07:44:17 - 08:14:17 2591
Yakima 07:59:18 -20.0 Dark Up 29.7 148.0 Low 07:44:18 - 08:14:18 2563
Toppenish/White Swan 07:59:17 -20.2 Dark Up 30.0 148.2 Low 07:44:17 - 08:14:17 2550
PNWRO 07:59:13 -20.6 Dark Up 30.8 149.6 Up 07:44:13 - 08:14:13 2542
Goldendale 07:59:20 -20.7 Dark Up 30.3 147.5 Up 07:44:20 - 08:14:20 2507
The Dalles 07:59:21 -21.0 Dark Up 30.4 147.1 Up 07:44:21 - 08:14:21 2487
Maupin 07:59:22 -21.4 Dark Up 30.8 147.1 Up 07:44:22 - 08:14:22 2459
Sisters 07:59:25 -22.2 Dark Up 31.3 146.3 Up 07:44:25 - 08:14:25 2390
Bend 07:59:24 -22.5 Dark Up 31.6 146.5 Up 07:44:24 - 08:14:24 2376
Oregon Observatory 07:59:25 -22.7 Dark Up 31.7 146.3 Up 07:44:25 - 08:14:25 2362
North Lake 07:59:24 -23.3 Dark Up 32.4 146.6 Up 07:44:24 - 08:14:24 2322
Dunrhomin 07:58:15 -25.0 Dark Up 40.0 163.7 Up 07:43:15 - 08:13:15 2287
CU-SBO 07:58:15 -25.3 Dark Up 40.2 163.5 Up 07:43:15 - 08:13:15 2269
Chiloquin 07:59:29 -24.0 Dark Up 32.6 145.4 Up 07:44:29 - 08:14:29 2260
Lakeview 07:59:23 -24.4 Dark Up 33.5 146.8 Up 07:44:23 - 08:14:23 2250
Klamath Falls 07:59:29 -24.3 Dark Up 32.9 145.3 Up 07:44:29 - 08:14:29 2236
Cedarville 07:59:24 -25.0 Dark Up 34.2 146.8 Up 07:44:24 - 08:14:24 2203
Fall River/Burney 07:59:29 -25.5 Dark Up 34.1 145.3 Up 07:44:29 - 08:14:29 2151
Susanville 07:59:27 -26.1 Dark Up 34.9 145.9 Up 07:44:27 - 08:14:27 2112
Gimple 07:59:28 -26.4 Dark Up 35.0 145.5 Up 07:44:28 - 08:14:28 2087
Greenville 07:59:29 -26.4 Dark Up 35.0 145.4 Up 07:44:29 - 08:14:29 2087
Quincy 07:59:29 -26.6 Dark Up 35.2 145.4 Up 07:44:29 - 08:14:29 2071
Portola 07:59:27 -26.8 Dark Up 35.5 145.8 Up 07:44:27 - 08:14:27 2067
Reno 07:59:25 -27.0 Dark Up 36.0 146.4 Up 07:44:25 - 08:14:25 2055
Carson City 07:59:25 -27.4 Dark Up 36.3 146.3 Up 07:44:25 - 08:14:25 2027
Yerington 07:59:23 -27.6 Dark Up 36.7 146.9 Up 07:44:23 - 08:14:23 2019
Gardnerville 07:59:26 -27.6 Dark Up 36.5 146.2 Up 07:44:26 - 08:14:26 2008
Hawthorne 07:59:21 -28.0 Dark Up 37.3 147.3 Up 07:44:21 - 08:14:21 1989
Tonopah 07:59:17 -28.5 Dark Up 38.3 148.7 Up 07:44:17 - 08:14:17 1970
Lee Vining 07:59:24 -28.6 Dark Up 37.6 146.5 Up 07:44:24 - 08:14:24 1939
Bishop 07:59:22 -29.2 Dark Up 38.4 147.1 Up 07:44:22 - 08:14:22 1899
Beatty 07:59:16 -29.6 Dark Up 39.5 148.7 Up 07:44:16 - 08:14:16 1882
Indian Springs 07:59:12 -29.9 Dark Up 40.2 149.8 Up 07:44:12 - 08:14:12 1870
Henderson 07:59:09 -30.4 Dark Up 40.9 150.4 Up 07:44:09 - 08:14:09 1834
Patrick 07:59:05 -30.9 Dark Up 41.9 151.5 Up 07:44:05 - 08:14:05 1797
Kingman/Dolan Springs 07:59:06 -31.2 Dark Up 42.0 151.2 Up 07:44:06 - 08:14:06 1776
Laughlin/Bullhead City 07:59:08 -31.2 Dark Up 41.9 150.5 Up 07:44:08 - 08:14:08 1767
Mohave Valley 07:59:09 -31.5 Dark Up 42.1 150.4 Up 07:44:09 - 08:14:09 1745
Lake Havasu City 07:59:08 -31.9 Dark Up 42.5 150.6 Up 07:44:08 - 08:14:08 1714
Parker 07:59:08 -32.2 Dark Up 42.9 150.4 Up 07:44:08 - 08:14:08 1685
George/Scottsdale 07:58:58 -32.4 Dark Up 44.2 153.2 Up 07:43:58 - 08:13:58 1680
Wildwood 07:59:26 -32.5 Dark Up 41.0 145.4 Up 07:44:26 - 08:14:26 1625
Idyllwild 07:59:19 -32.8 Dark Up 42.2 147.4 Up 07:44:19 - 08:14:19 1620
Calipatria 07:59:14 -33.3 Dark Up 43.2 148.5 Up 07:44:14 - 08:14:14 1582
Yuma 07:59:11 -33.7 Dark Up 44.0 149.3 Up 07:44:11 - 08:14:11 1557

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 459865, (2029/06/22 07:57UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 48.54 110
Tarazed        19:46:15.6 +10:36:48  2.7 19.03  84
56 Aql         19:54:08.3 -08:34:28  5.4  0.82  80
PPM 203390     19:52:45.6 -07:41:51  8.1  0.82  80
PPM 203353     19:50:54.5 -08:14:14  9.3  0.15  79
459865         19:50:55.2 -08:23:00 14.7        79
Positions are for J2000

Event circumstances last updated at 2022/03/07 21:33:57 UT

Marc W. Buie, Southwest Research Institute

RECON