RECON: TNO occultation with 470593

Event between (470593) 08LP17 and star GA0600:50870835 with event index number of 2801727

Geocentric closest approach at 2029/07/04 06:25:37 UTC

J2000 position of star is 18:35:38.5 -29:33:31
Equinox of date position of star is 18:37:06.3 -29:32:18
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 101 degrees from the moon. Moon is 45% illuminated.
Apparent brightness V=21.7

[RECON map]
Object is 33.2 AU from the Sun and 32.2 AU from the Earth.
Apparent velocity is 23.1 km/sec on the sky relative to the star, or, 3.6 arcsec/hr.
The 1-sigma error in the time of the event is 179 seconds.
The 1-sigma cross-track error in the shadow position is 1406 km.
The sky-plane scale is 23337.3 km/arcsec.

The object has an absolute magnitude Hv=6.5
Diameter=346.7 km assuming a 5% albedo -- 12.9 sec chord
Diameter=141.6 km assuming a 30% albedo -- 5.3 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 470593, (2029/07/04 06:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:13.3 -26:29:41  0.9 27.96 129
Nunki          18:57:05.6 -26:15:26  2.0  5.42  96
PPM 268632     18:37:52.6 -29:40:22  6.4  0.16 101
470593         18:37:31.3 -29:31:57 16.8       101
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 20.0 km RECON observability=0.3 and success probability=1.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 06:25:24 -14.5 AT Up 8.2 174.8 Really Low 06:10:24 - 06:40:24 4073
Kamloops 06:26:08 -13.3 AT Down 7.8 162.4 Really Low 06:11:08 - 06:41:08 4046
Kelowna 06:26:06 -14.2 AT Down 8.8 163.1 Really Low 06:11:06 - 06:41:06 4035
Peachland 06:26:07 -14.3 AT Down 8.8 162.8 Really Low 06:11:07 - 06:41:07 4031
Summerland 06:26:07 -14.4 AT Down 9.0 162.9 Really Low 06:11:07 - 06:41:07 4029
Penticton 06:26:07 -14.5 AT Down 9.0 163.0 Really Low 06:11:07 - 06:41:07 4028
Oliver 06:26:07 -14.8 AT Down 9.4 163.0 Really Low 06:11:07 - 06:41:07 4021
Anarchist Mountain Observatory 06:26:07 -15.0 AT Down 9.6 163.1 Really Low 06:11:07 - 06:41:07 4019
Okanogan 06:26:08 -15.6 AT Down 10.2 162.9 Really Low 06:11:08 - 06:41:08 4003
Brewster 06:26:10 -15.8 AT Down 10.4 162.7 Really Low 06:11:10 - 06:41:10 3996
Manson/Chelan 06:26:11 -15.9 AT Down 10.5 162.4 Really Low 06:11:11 - 06:41:11 3989
Victoria 06:26:19 -14.4 AT Down 9.2 159.7 Really Low 06:11:19 - 06:41:19 3985
Wenatchee 06:26:12 -16.3 AT Down 10.9 162.2 Really Low 06:11:12 - 06:41:12 3977
Ellensburg 06:26:13 -16.6 AT Down 11.3 162.0 Really Low 06:11:13 - 06:41:13 3966
Yakima 06:26:14 -16.9 AT Down 11.7 162.0 Really Low 06:11:14 - 06:41:14 3956
Toppenish/White Swan 06:26:14 -17.2 AT Down 11.9 162.1 Really Low 06:11:14 - 06:41:14 3951
PNWRO 06:26:09 -17.9 AT Down 12.6 163.4 Really Low 06:11:09 - 06:41:09 3948
The Dalles 06:26:17 -17.7 AT Down 12.5 161.4 Really Low 06:11:17 - 06:41:17 3926
Maupin 06:26:17 -18.1 Dark Down 12.9 161.5 Really Low 06:11:17 - 06:41:17 3915
Sisters 06:26:20 -18.7 Dark Down 13.6 161.0 Really Low 06:11:20 - 06:41:20 3887
Bend 06:26:20 -19.0 Dark Down 13.9 161.2 Really Low 06:11:20 - 06:41:20 3881
Oregon Observatory 06:26:21 -19.1 Dark Down 14.0 161.1 Really Low 06:11:21 - 06:41:21 3875
Chiloquin 06:26:24 -20.2 Dark Down 15.2 160.6 Really Low 06:11:24 - 06:41:24 3830
Klamath Falls 06:26:24 -20.5 Dark Down 15.5 160.6 Really Low 06:11:24 - 06:41:24 3819
Cedarville 06:26:19 -21.7 Dark Down 16.6 162.0 Really Low 06:11:19 - 06:41:19 3805
Fall River/Burney 06:26:24 -21.7 Dark Down 16.7 160.9 Really Low 06:11:24 - 06:41:24 3780
Dunrhomin 06:25:28 -26.2 Dark Down 20.0 175.2 Low 06:10:28 - 06:40:28 3757
Nikitin 06:25:28 -26.4 Dark Down 20.2 175.2 Low 06:10:28 - 06:40:28 3750
Gimple 06:26:23 -22.7 Dark Down 17.7 161.2 Really Low 06:11:23 - 06:41:23 3750
Greenville 06:26:24 -22.7 Dark Down 17.7 161.2 Really Low 06:11:24 - 06:41:24 3749
CU-SBO 06:25:28 -26.5 Dark Down 20.3 175.1 Low 06:10:28 - 06:40:28 3748
Quincy 06:26:24 -22.9 Dark Down 17.9 161.1 Really Low 06:11:24 - 06:41:24 3742
Portola 06:26:23 -23.1 Dark Down 18.1 161.5 Really Low 06:11:23 - 06:41:23 3740
Reno 06:26:20 -23.6 Dark Down 18.5 162.1 Really Low 06:11:20 - 06:41:20 3733
Carson City 06:26:21 -23.9 Dark Down 18.9 162.1 Really Low 06:11:21 - 06:41:21 3719
Yerington 06:26:19 -24.3 Dark Down 19.2 162.6 Really Low 06:11:19 - 06:41:19 3715
Gardnerville 06:26:21 -24.2 Dark Down 19.1 162.1 Really Low 06:11:21 - 06:41:21 3710
Hawthorne 06:26:17 -24.9 Dark Down 19.8 163.0 Really Low 06:11:17 - 06:41:17 3699
Lee Vining 06:26:20 -25.3 Dark Down 20.2 162.5 Low 06:11:20 - 06:41:20 3674
Bishop 06:26:18 -26.0 Dark Down 20.9 163.1 Low 06:11:18 - 06:41:18 3651
Beatty 06:26:13 -27.0 Dark Down 21.7 164.5 Low 06:11:13 - 06:41:13 3637
Patrick 06:26:03 -29.2 Dark Down 23.8 167.0 Low 06:11:03 - 06:41:03 3576
Laughlin/Bullhead City 06:26:06 -29.2 Dark Down 23.9 166.3 Low 06:11:06 - 06:41:06 3563
Lake Havasu City 06:26:06 -29.9 Dark Down 24.6 166.5 Low 06:11:06 - 06:41:06 3532
Wildwood 06:26:23 -29.0 Dark Down 24.0 162.5 Low 06:11:23 - 06:41:23 3501
George/Scottsdale 06:25:57 -31.3 Dark Down 25.8 168.7 Low 06:10:57 - 06:40:57 3496
Idyllwild 06:26:16 -29.9 Dark Down 24.8 164.2 Low 06:11:16 - 06:41:16 3492
Calipatria 06:26:12 -30.8 Dark Down 25.7 165.2 Low 06:11:12 - 06:41:12 3463
Yuma 06:26:09 -31.5 Dark Down 26.3 166.0 Low 06:11:09 - 06:41:09 3443

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 470593, (2029/07/04 06:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 27.96 129
Nunki          18:55:15.9 -26:17:49  2.0  5.42  96
PPM 268632     18:35:59.7 -29:41:57  6.4  0.16 101
470593         18:35:38.5 -29:33:31 16.8       101
Positions are for J2000

Event circumstances last updated at 2022/12/15 06:43:12 UT

Marc W. Buie, Southwest Research Institute

RECON