RECON: TNO occultation with 523695

Event between (523695) 14GS53 and star GA0820:05279598 with event index number of 2752923

Geocentric closest approach at 2029/05/04 08:44:28 UTC

J2000 position of star is 16:21:00.6 -06:45:16
Equinox of date position of star is 16:22:19.5 -06:48:40
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 58 degrees from the moon. Moon is 61% illuminated.
Apparent brightness V=22.0

[RECON map]
Object is 35.7 AU from the Sun and 34.8 AU from the Earth.
Apparent velocity is 22.8 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 93 seconds.
The 1-sigma cross-track error in the shadow position is 1427 km.
The sky-plane scale is 25247.3 km/arcsec.

The object has an absolute magnitude Hv=6.4
Diameter=302.0 km assuming a 5% albedo -- 13.8 sec chord
Diameter=123.3 km assuming a 30% albedo -- 5.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 523695, (2029/05/04 08:47UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.7 -26:29:40  0.9 19.78  53
1Del Oph       16:15:53.2 -03:46:03  2.7  3.48  60
PPM 199686     16:29:18.5 -07:39:45  5.5  1.87  56
PPM 199528     16:20:43.9 -06:56:45  7.0  0.48  58
PPM 199561     16:22:35.5 -06:39:55  9.2  0.16  58
523695         16:22:35.1 -06:49:21 16.9        58
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 18.8 km RECON observability=1.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:45:24 -18.1 Dark Up 31.1 183.1 Up 08:37:10 - 08:53:37 5409
Kamloops 08:46:04 -22.4 Dark Down 31.7 166.5 Up 08:37:51 - 08:54:18 5055
Kelowna 08:46:02 -23.1 Dark Down 32.6 167.4 Up 08:37:48 - 08:54:15 5021
Peachland 08:46:03 -23.2 Dark Down 32.7 167.0 Up 08:37:49 - 08:54:16 5008
Summerland 08:46:03 -23.4 Dark Down 32.9 167.1 Up 08:37:49 - 08:54:16 5001
Penticton 08:46:02 -23.4 Dark Down 32.9 167.2 Up 08:37:49 - 08:54:16 4999
Oliver 08:46:02 -23.8 Dark Down 33.3 167.2 Up 08:37:49 - 08:54:16 4976
Anarchist Mountain Observatory 08:46:02 -23.9 Dark Down 33.5 167.4 Up 08:37:48 - 08:54:15 4969
Okanogan 08:46:02 -24.6 Dark Down 34.1 167.0 Up 08:37:49 - 08:54:16 4922
Brewster 08:46:03 -24.8 Dark Down 34.3 166.7 Up 08:37:50 - 08:54:17 4900
Manson/Chelan 08:46:04 -25.1 Dark Down 34.4 166.3 Up 08:37:51 - 08:54:18 4879
Victoria 08:46:14 -24.9 Dark Down 33.3 162.6 Up 08:38:00 - 08:54:27 4853
Wenatchee 08:46:04 -25.6 Dark Down 34.9 166.0 Up 08:37:51 - 08:54:18 4843
Ellensburg 08:46:05 -26.0 Dark Down 35.2 165.7 Up 08:37:51 - 08:54:18 4811
Yakima 08:46:05 -26.4 Dark Up 35.6 165.6 Up 08:37:52 - 08:54:19 4782
PNWRO 08:46:00 -26.7 Dark Up 36.5 167.5 Up 08:37:46 - 08:54:13 4778
Toppenish/White Swan 08:46:05 -26.6 Dark Up 35.9 165.7 Up 08:37:52 - 08:54:19 4771
The Dalles 08:46:07 -27.5 Dark Up 36.5 164.6 Up 08:37:54 - 08:54:21 4700
Dunrhomin 08:45:11 -28.3 Dark Up 42.9 184.6 Up 08:36:57 - 08:53:24 4674
Maupin 08:46:06 -27.9 Dark Up 36.9 164.7 Up 08:37:53 - 08:54:20 4673
Nikitin 08:45:10 -28.5 Dark Up 43.1 184.6 Up 08:36:57 - 08:53:24 4660
CU-SBO 08:45:12 -28.6 Dark Up 43.1 184.5 Up 08:36:58 - 08:53:25 4654
Sisters 08:46:08 -28.8 Dark Up 37.7 163.9 Up 08:37:54 - 08:54:21 4599
Bend 08:46:07 -29.0 Dark Up 37.9 164.2 Up 08:37:53 - 08:54:20 4588
Oregon Observatory 08:46:08 -29.2 Dark Up 38.1 164.0 Up 08:37:55 - 08:54:22 4572
Chiloquin 08:46:10 -30.6 Dark Up 39.3 163.2 Up 08:37:56 - 08:54:23 4466
Klamath Falls 08:46:09 -30.9 Dark Up 39.6 163.2 Up 08:37:55 - 08:54:22 4442
Cedarville 08:46:03 -31.3 Dark Up 40.6 165.0 Up 08:37:50 - 08:54:17 4427
Fall River/Burney 08:46:07 -32.0 Dark Up 40.8 163.4 Up 08:37:53 - 08:54:20 4362
Gimple 08:46:05 -32.8 Dark Up 41.8 163.8 Up 08:37:52 - 08:54:19 4304
Greenville 08:46:06 -32.8 Dark Up 41.8 163.7 Up 08:37:52 - 08:54:19 4303
Portola 08:46:04 -33.0 Dark Up 42.2 164.3 Up 08:37:50 - 08:54:17 4289
Quincy 08:46:05 -33.0 Dark Up 42.0 163.7 Up 08:37:52 - 08:54:19 4287
Reno 08:46:01 -33.2 Dark Up 42.6 165.0 Up 08:37:48 - 08:54:15 4284
Yerington 08:45:59 -33.6 Dark Up 43.2 165.8 Up 08:37:45 - 08:54:12 4256
Carson City 08:46:01 -33.5 Dark Up 42.9 165.0 Up 08:37:48 - 08:54:15 4256
Gardnerville 08:46:01 -33.7 Dark Up 43.2 165.0 Up 08:37:47 - 08:54:14 4238
Hawthorne 08:45:57 -33.9 Dark Up 43.8 166.4 Up 08:37:43 - 08:54:10 4233
Lee Vining 08:45:58 -34.5 Dark Up 44.3 165.6 Up 08:37:45 - 08:54:12 4177
Beatty 08:45:50 -35.0 Dark Up 45.7 168.5 Up 08:37:36 - 08:54:03 4149
Bishop 08:45:56 -35.0 Dark Up 45.0 166.4 Up 08:37:42 - 08:54:09 4146
Patrick 08:45:38 -35.6 Dark Up 47.6 172.4 Up 08:37:25 - 08:53:52 4101
Laughlin/Bullhead City 08:45:41 -36.1 Dark Up 47.7 171.3 Up 08:37:27 - 08:53:54 4063
Lake Havasu City 08:45:39 -36.6 Dark Up 48.4 171.6 Up 08:37:25 - 08:53:52 4014
George/Scottsdale 08:45:29 -36.6 Dark Up 49.4 175.1 Up 08:37:15 - 08:53:42 4012
Idyllwild 08:45:48 -38.0 Dark Up 48.8 167.9 Up 08:37:34 - 08:54:01 3891
Wildwood 08:45:55 -38.2 Dark Up 48.1 165.3 Up 08:37:41 - 08:54:08 3872
Calipatria 08:45:43 -38.3 Dark Up 49.6 169.5 Up 08:37:29 - 08:53:56 3869
Yuma 08:45:39 -38.4 Dark Up 50.1 170.8 Up 08:37:25 - 08:53:52 3856

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 523695, (2029/05/04 08:47UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 19.78  53
1Del Oph       16:14:20.7 -03:41:43  2.7  3.48  60
PPM 199686     16:27:43.5 -07:35:57  5.5  1.87  56
PPM 199528     16:19:09.4 -06:52:37  7.0  0.48  58
PPM 199561     16:21:01.1 -06:35:50  9.2  0.16  58
523695         16:21:00.6 -06:45:16 16.9        58
Positions are for J2000

Event circumstances last updated at 2024/06/26 21:35:03 UT

Marc W. Buie, Southwest Research Institute

RECON