RECON: TNO occultation with 578992

Event between (578992) 14JL80 and star GA0700:20891232 with event index number of 2760918

Geocentric closest approach at 2029/05/21 09:42:00 UTC

J2000 position of star is 17:51:38.3 -19:06:54
Equinox of date position of star is 17:53:04.9 -19:07:10
Stellar brightness G=17.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 115 degrees from the moon. Moon is 53% illuminated.
Apparent brightness V=22.0

[RECON map]
Object is 28.7 AU from the Sun and 27.8 AU from the Earth.
Apparent velocity is 19.7 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 139 seconds.
The 1-sigma cross-track error in the shadow position is 1050 km.
The sky-plane scale is 20189.5 km/arcsec.

The object has an absolute magnitude Hv=7.4
Diameter=199.5 km assuming a 5% albedo -- 10.2 sec chord
Diameter=81.5 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 578992, (2029/05/21 09:37UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.9 -26:29:40  0.9 20.29  96
35Eta Oph      17:12:03.9 -15:45:33  2.6 10.41 105
PPM 233754     17:57:38.7 -18:48:16  6.5  1.06 116
PPM 233697     17:54:03.3 -19:07:36  7.6  0.16 115
578992         17:53:22.3 -19:07:13 17.0       115
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 17.8 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 09:41:36 -9.6 NT Down 18.2 190.8 Really Low 09:29:30 - 09:53:43 5715
Kamloops 09:42:26 -15.4 AT Down 20.2 176.6 Low 09:30:19 - 09:54:32 5642
Kelowna 09:42:23 -15.9 AT Down 21.0 177.5 Low 09:30:17 - 09:54:30 5614
Peachland 09:42:23 -16.1 AT Down 21.1 177.2 Low 09:30:17 - 09:54:30 5608
Summerland 09:42:24 -16.2 AT Down 21.2 177.3 Low 09:30:17 - 09:54:30 5603
Penticton 09:42:23 -16.2 AT Down 21.3 177.4 Low 09:30:16 - 09:54:29 5600
Oliver 09:42:23 -16.5 AT Down 21.7 177.4 Low 09:30:17 - 09:54:30 5586
Anarchist Mountain Observatory 09:42:23 -16.6 AT Down 21.8 177.6 Low 09:30:16 - 09:54:29 5580
Okanogan 09:42:23 -17.3 AT Down 22.5 177.4 Low 09:30:16 - 09:54:29 5551
Victoria 09:42:38 -18.2 Dark Down 22.1 173.5 Low 09:30:31 - 09:54:44 5539
Brewster 09:42:25 -17.6 AT Down 22.7 177.2 Low 09:30:18 - 09:54:31 5539
Manson/Chelan 09:42:26 -17.9 AT Down 22.9 176.8 Low 09:30:19 - 09:54:32 5528
Wenatchee 09:42:27 -18.3 Dark Down 23.4 176.6 Low 09:30:20 - 09:54:33 5507
Ellensburg 09:42:27 -18.8 Dark Down 23.8 176.4 Low 09:30:20 - 09:54:33 5487
Yakima 09:42:27 -19.2 Dark Down 24.2 176.3 Low 09:30:21 - 09:54:34 5468
Toppenish/White Swan 09:42:27 -19.3 Dark Down 24.4 176.5 Low 09:30:20 - 09:54:33 5459
PNWRO 09:42:20 -19.2 Dark Down 24.9 178.0 Low 09:30:14 - 09:54:27 5449
The Dalles 09:42:30 -20.2 Dark Down 25.2 175.7 Low 09:30:24 - 09:54:37 5419
Maupin 09:42:30 -20.6 Dark Down 25.6 175.8 Low 09:30:23 - 09:54:36 5399
Sisters 09:42:32 -21.5 Dark Down 26.5 175.2 Low 09:30:25 - 09:54:38 5354
Bend 09:42:31 -21.7 Dark Down 26.7 175.5 Low 09:30:25 - 09:54:38 5343
Oregon Observatory 09:42:31 -21.9 Dark Down 26.9 175.3 Low 09:30:25 - 09:54:38 5334
Chiloquin 09:42:33 -23.2 Dark Down 28.2 174.8 Low 09:30:27 - 09:54:40 5263
Klamath Falls 09:42:33 -23.5 Dark Down 28.5 174.9 Low 09:30:26 - 09:54:39 5246
Cedarville 09:42:27 -23.6 Dark Down 29.3 176.6 Low 09:30:21 - 09:54:34 5217
Fall River/Burney 09:42:32 -24.4 Dark Down 29.7 175.3 Low 09:30:26 - 09:54:39 5183
Dunrhomin 09:41:24 -18.4 Dark Down 29.7 192.6 Low 09:29:17 - 09:53:30 5167
Nikitin 09:41:24 -18.6 Dark Down 29.8 192.6 Low 09:29:17 - 09:53:30 5157
CU-SBO 09:41:24 -18.7 Dark Down 29.9 192.5 Low 09:29:17 - 09:53:30 5153
Gimple 09:42:30 -25.0 Dark Down 30.6 175.8 Up 09:30:24 - 09:54:37 5135
Greenville 09:42:30 -25.1 Dark Down 30.6 175.7 Up 09:30:23 - 09:54:36 5135
Quincy 09:42:31 -25.2 Dark Down 30.8 175.7 Up 09:30:24 - 09:54:37 5123
Portola 09:42:28 -25.2 Dark Down 31.0 176.2 Up 09:30:22 - 09:54:35 5119
Reno 09:42:25 -25.2 Dark Down 31.3 176.9 Up 09:30:19 - 09:54:32 5107
Carson City 09:42:25 -25.5 Dark Down 31.6 176.9 Up 09:30:18 - 09:54:31 5086
Yerington 09:42:23 -25.5 Dark Down 31.9 177.6 Up 09:30:16 - 09:54:29 5077
Gardnerville 09:42:25 -25.7 Dark Down 31.9 177.0 Up 09:30:18 - 09:54:31 5072
Hawthorne 09:42:20 -25.7 Dark Down 32.3 178.2 Up 09:30:14 - 09:54:27 5052
Lee Vining 09:42:23 -26.4 Dark Down 32.9 177.6 Up 09:30:16 - 09:54:29 5017
Bishop 09:42:19 -26.6 Dark Down 33.5 178.4 Up 09:30:13 - 09:54:26 4983
Beatty 09:42:12 -26.4 Dark Down 34.0 180.2 Up 09:30:05 - 09:54:18 4961
Patrick 09:41:59 -26.4 Dark Down 35.4 183.5 Up 09:29:52 - 09:54:05 4875
Laughlin/Bullhead City 09:42:02 -26.9 Dark Down 35.7 182.7 Up 09:29:55 - 09:54:08 4857
Lake Havasu City 09:42:01 -27.3 Dark Down 36.3 183.0 Up 09:29:54 - 09:54:07 4814
Wildwood 09:42:20 -29.5 Dark Down 36.8 178.1 Up 09:30:13 - 09:54:26 4772
George/Scottsdale 09:41:49 -26.8 Dark Down 37.0 185.9 Up 09:29:43 - 09:53:56 4767
Idyllwild 09:42:11 -29.0 Dark Down 37.2 180.3 Up 09:30:05 - 09:54:18 4757
Calipatria 09:42:06 -29.0 Dark Down 37.7 181.7 Up 09:29:59 - 09:54:12 4719
Yuma 09:42:01 -29.0 Dark Down 38.1 182.7 Up 09:29:55 - 09:54:08 4692

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 578992, (2029/05/21 09:37UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 20.29  96
35Eta Oph      17:10:22.7 -15:43:29  2.6 10.41 105
PPM 233754     17:55:55.0 -18:48:08  6.5  1.06 116
PPM 233697     17:52:19.4 -19:07:19  7.6  0.16 115
578992         17:51:38.3 -19:06:54 17.0       115
Positions are for J2000

Event circumstances last updated at 2024/06/26 21:35:32 UT

Marc W. Buie, Southwest Research Institute

RECON