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 07:54:47 UTC

J2000 position of star is 19:50:55.2 -08:23:00
Equinox of date position of star is 19:52:10.3 -08:19:24
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.
Apparent brightness V=20.6

[RECON map]
Object is 12.6 AU from the Sun and 11.7 AU from the Earth.
Apparent velocity is 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 141 seconds.
The 1-sigma cross-track error in the shadow position is 1622 km.
The sky-plane scale is 8487.0 km/arcsec.

The object has an absolute magnitude Hv=9.5
Diameter=70.8 km assuming a 5% albedo -- 3.9 sec chord
Diameter=28.9 km assuming a 30% albedo -- 1.6 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 5.0 sigma about the mid-time.
The median site spacing is 22.7 km RECON observability=1.0 and success probability=3.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 07:56:04 -13.7 AT Down 28.4 164.4 Low 07:43:49 - 08:08:19 5205
Kamloops 07:56:53 -15.9 AT Up 26.1 148.7 Low 07:44:38 - 08:09:08 4981
Kelowna 07:56:51 -16.7 AT Up 27.1 149.5 Low 07:44:36 - 08:09:06 4940
Peachland 07:56:53 -16.8 AT Up 27.1 149.1 Low 07:44:38 - 08:09:08 4930
Summerland 07:56:52 -17.0 AT Up 27.3 149.2 Low 07:44:37 - 08:09:07 4921
Penticton 07:56:52 -17.0 AT Up 27.4 149.3 Low 07:44:37 - 08:09:07 4918
Oliver 07:56:52 -17.4 AT Up 27.7 149.2 Low 07:44:37 - 08:09:07 4895
Anarchist Mountain Observatory 07:56:52 -17.6 AT Up 27.9 149.4 Low 07:44:37 - 08:09:07 4887
Okanogan 07:56:54 -18.2 Dark Up 28.4 149.0 Low 07:44:39 - 08:09:09 4842
Brewster 07:56:55 -18.5 Dark Up 28.5 148.7 Low 07:44:40 - 08:09:10 4822
Victoria 07:57:06 -17.9 AT Up 26.9 145.1 Low 07:44:51 - 08:09:21 4809
Manson/Chelan 07:56:57 -18.7 Dark Up 28.6 148.2 Low 07:44:42 - 08:09:12 4804
Wenatchee 07:56:58 -19.1 Dark Up 28.9 147.9 Low 07:44:43 - 08:09:13 4770
Ellensburg 07:56:59 -19.6 Dark Up 29.2 147.6 Low 07:44:44 - 08:09:14 4740
Yakima 07:57:00 -20.0 Dark Up 29.5 147.4 Low 07:44:45 - 08:09:15 4711
Toppenish/White Swan 07:57:00 -20.2 Dark Up 29.8 147.5 Low 07:44:45 - 08:09:15 4698
PNWRO 07:56:56 -20.6 Dark Up 30.6 149.0 Up 07:44:41 - 08:09:11 4690
The Dalles 07:57:04 -20.9 Dark Up 30.1 146.5 Up 07:44:49 - 08:09:19 4635
Maupin 07:57:04 -21.4 Dark Up 30.5 146.5 Up 07:44:49 - 08:09:19 4607
Sisters 07:57:07 -22.2 Dark Up 31.1 145.7 Up 07:44:52 - 08:09:22 4538
Bend 07:57:07 -22.5 Dark Up 31.4 145.9 Up 07:44:52 - 08:09:22 4525
Oregon Observatory 07:57:08 -22.6 Dark Up 31.5 145.7 Up 07:44:53 - 08:09:23 4510
Dunrhomin 07:56:08 -25.1 Dark Up 39.9 163.0 Up 07:43:53 - 08:08:23 4428
Nikitin 07:56:09 -25.3 Dark Up 40.1 163.0 Up 07:43:54 - 08:08:24 4414
CU-SBO 07:56:09 -25.4 Dark Up 40.1 162.9 Up 07:43:54 - 08:08:24 4408
Chiloquin 07:57:11 -23.9 Dark Up 32.4 144.8 Up 07:44:56 - 08:09:26 4408
Klamath Falls 07:57:11 -24.3 Dark Up 32.7 144.7 Up 07:44:56 - 08:09:26 4384
Cedarville 07:57:07 -25.0 Dark Up 33.9 146.2 Up 07:44:52 - 08:09:22 4351
Fall River/Burney 07:57:12 -25.5 Dark Up 33.8 144.7 Up 07:44:57 - 08:09:27 4299
Gimple 07:57:11 -26.4 Dark Up 34.8 144.9 Up 07:44:56 - 08:09:26 4235
Greenville 07:57:11 -26.4 Dark Up 34.8 144.8 Up 07:44:56 - 08:09:26 4234
Quincy 07:57:12 -26.6 Dark Up 34.9 144.7 Up 07:44:57 - 08:09:27 4219
Portola 07:57:11 -26.7 Dark Up 35.2 145.2 Up 07:44:56 - 08:09:26 4215
Reno 07:57:08 -27.0 Dark Up 35.7 145.8 Up 07:44:53 - 08:09:23 4203
Carson City 07:57:09 -27.4 Dark Up 36.0 145.7 Up 07:44:54 - 08:09:24 4175
Yerington 07:57:06 -27.6 Dark Up 36.5 146.3 Up 07:44:51 - 08:09:21 4167
Gardnerville 07:57:09 -27.6 Dark Up 36.3 145.6 Up 07:44:54 - 08:09:24 4156
Hawthorne 07:57:05 -28.0 Dark Up 37.1 146.7 Up 07:44:50 - 08:09:20 4137
Lee Vining 07:57:07 -28.6 Dark Up 37.3 145.9 Up 07:44:52 - 08:09:22 4086
Bishop 07:57:05 -29.2 Dark Up 38.2 146.4 Up 07:44:50 - 08:09:20 4047
Beatty 07:56:59 -29.6 Dark Up 39.2 148.1 Up 07:44:44 - 08:09:14 4030
Patrick 07:56:48 -31.0 Dark Up 41.7 150.8 Up 07:44:33 - 08:09:03 3945
Laughlin/Bullhead City 07:56:52 -31.3 Dark Up 41.6 149.9 Up 07:44:37 - 08:09:07 3915
Lake Havasu City 07:56:51 -31.9 Dark Up 42.3 149.9 Up 07:44:36 - 08:09:06 3862
George/Scottsdale 07:56:41 -32.5 Dark Up 44.0 152.5 Up 07:44:26 - 08:08:56 3828
Wildwood 07:57:09 -32.5 Dark Up 40.8 144.7 Up 07:44:54 - 08:09:24 3772
Idyllwild 07:57:02 -32.8 Dark Up 41.9 146.7 Up 07:44:47 - 08:09:17 3767
Calipatria 07:56:58 -33.4 Dark Up 43.0 147.8 Up 07:44:43 - 08:09:13 3730
Yuma 07:56:54 -33.7 Dark Up 43.7 148.6 Up 07:44:39 - 08:09:09 3705

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 2023/02/20 03:35:54 UT

Marc W. Buie, Southwest Research Institute

RECON