RECON: TNO occultation with 523699

Event between (523699) 14GH54 and star GA0600:07391432 with event index number of 2620919

Geocentric closest approach at 2024/04/10 11:40:13 UTC

J2000 position of star is 15:16:58.3 -29:38:56
Equinox of date position of star is 15:18:24.2 -29:44:03
Stellar brightness G=15.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 167 degrees from the moon. Moon is 4% illuminated.
Apparent brightness V=22.0

[RECON map]
Object is 37.2 AU from the Sun and 36.4 AU from the Earth.
Apparent velocity is 20.0 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 104 seconds.
The 1-sigma cross-track error in the shadow position is 1926 km.
The sky-plane scale is 26370.3 km/arcsec.

The object has an absolute magnitude Hv=6.2
Diameter=346.7 km assuming a 5% albedo -- 17.3 sec chord
Diameter=141.6 km assuming a 30% albedo -- 7.1 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 523699, (2024/04/10 11:41UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.0 -26:29:01  0.9 16.29 155
7Del Sco       16:01:46.4 -22:41:20  2.3 11.99 162
2 Lup          15:19:18.9 -30:14:10  3.7  0.53 167
PPM 264088     15:20:24.1 -29:18:30  8.4  0.60 167
PPM 264053     15:18:54.0 -29:40:37  9.9  0.11 167
523699         15:18:27.0 -29:44:13 15.2       167
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 59.4 km RECON observability=0.1 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)
Kamloops 11:38:46 -14.9 AT Down 6.9 201.1 Really Low 11:29:36 - 11:47:56 10036
Victoria 11:38:53 -17.8 AT Down 9.5 198.6 Really Low 11:29:43 - 11:48:03 10029
Peachland 11:38:42 -15.1 AT Down 7.6 201.6 Really Low 11:29:32 - 11:47:52 10005
Kelowna 11:38:42 -14.9 AT Down 7.4 201.9 Really Low 11:29:32 - 11:47:52 10003
Summerland 11:38:42 -15.2 AT Down 7.7 201.7 Really Low 11:29:32 - 11:47:52 10000
Penticton 11:38:42 -15.1 AT Down 7.7 201.8 Really Low 11:29:32 - 11:47:52 9996
Oliver 11:38:41 -15.3 AT Down 8.1 201.8 Really Low 11:29:31 - 11:47:51 9987
Anarchist Mountain Observatory 11:38:40 -15.3 AT Down 8.2 202.0 Really Low 11:29:30 - 11:47:50 9980
Okanogan 11:38:40 -15.8 AT Down 8.8 201.8 Really Low 11:29:30 - 11:47:50 9966
Manson/Chelan 11:38:41 -16.4 AT Down 9.4 201.4 Really Low 11:29:31 - 11:47:51 9962
Brewster 11:38:40 -16.1 AT Down 9.1 201.7 Really Low 11:29:30 - 11:47:50 9962
Wenatchee 11:38:41 -16.7 AT Down 9.9 201.3 Really Low 11:29:31 - 11:47:51 9951
Ellensburg 11:38:41 -17.1 AT Down 10.3 201.1 Really Low 11:29:31 - 11:47:51 9943
Yakima 11:38:40 -17.3 AT Down 10.7 201.1 Really Low 11:29:30 - 11:47:50 9931
Toppenish/White Swan 11:38:39 -17.3 AT Down 10.9 201.3 Really Low 11:29:29 - 11:47:49 9922
The Dalles 11:38:41 -18.2 Dark Down 11.8 200.7 Really Low 11:29:31 - 11:47:51 9910
Maupin 11:38:40 -18.4 Dark Down 12.2 200.8 Really Low 11:29:30 - 11:47:50 9895
PNWRO 11:38:33 -16.7 AT Down 10.8 202.6 Really Low 11:29:23 - 11:47:43 9885
Sisters 11:38:40 -19.2 Dark Down 13.1 200.4 Really Low 11:29:30 - 11:47:50 9875
Bend 11:38:39 -19.1 Dark Down 13.3 200.7 Really Low 11:29:29 - 11:47:49 9862
Oregon Observatory 11:38:39 -19.3 Dark Down 13.5 200.6 Really Low 11:29:29 - 11:47:49 9859
Chiloquin 11:38:39 -20.3 Dark Down 14.8 200.3 Really Low 11:29:29 - 11:47:49 9818
Klamath Falls 11:38:38 -20.4 Dark Down 15.1 200.4 Really Low 11:29:28 - 11:47:48 9804
Sleaford 11:38:08 -6.4 NT Down 1.6 212.8 Really Low 11:28:58 - 11:47:18 9800
Fall River/Burney 11:38:35 -20.8 Dark Down 16.1 200.9 Really Low 11:29:25 - 11:47:45 9752
Cedarville 11:38:31 -19.8 Dark Down 15.3 201.9 Really Low 11:29:21 - 11:47:41 9749
Greenville 11:38:32 -21.0 Dark Down 16.8 201.3 Really Low 11:29:22 - 11:47:42 9707
Gimple 11:38:31 -21.0 Dark Down 16.8 201.4 Really Low 11:29:21 - 11:47:41 9705
Quincy 11:38:32 -21.1 Dark Down 17.0 201.4 Really Low 11:29:22 - 11:47:42 9698
Portola 11:38:30 -20.9 Dark Down 17.0 201.8 Really Low 11:29:20 - 11:47:40 9685
Reno 11:38:27 -20.6 Dark Down 17.1 202.4 Really Low 11:29:17 - 11:47:37 9661
Carson City 11:38:27 -20.8 Dark Down 17.4 202.4 Really Low 11:29:17 - 11:47:37 9645
Gardnerville 11:38:26 -20.9 Dark Down 17.6 202.5 Really Low 11:29:16 - 11:47:36 9634
Yerington 11:38:24 -20.5 Dark Down 17.4 203.0 Really Low 11:29:14 - 11:47:34 9624
Hawthorne 11:38:21 -20.3 Dark Down 17.7 203.5 Really Low 11:29:11 - 11:47:31 9593
Lee Vining 11:38:23 -20.9 Dark Down 18.3 203.1 Really Low 11:29:13 - 11:47:33 9578
Bishop 11:38:19 -20.7 Dark Down 18.7 203.8 Really Low 11:29:09 - 11:47:29 9535
Beatty 11:38:12 -19.8 Dark Down 18.5 205.3 Really Low 11:29:02 - 11:47:22 9478
Wildwood 11:38:16 -22.5 Dark Down 21.7 204.1 Low 11:29:06 - 11:47:26 9376
Dunrhomin 11:37:37 -10.3 NT Down 11.2 214.0 Really Low 11:28:27 - 11:46:47 9351
Nikitin 11:37:37 -10.4 NT Down 11.4 214.1 Really Low 11:28:27 - 11:46:47 9343
CU-SBO 11:37:37 -10.5 NT Down 11.5 214.0 Really Low 11:28:27 - 11:46:47 9342
Laughlin/Bullhead City 11:38:01 -19.1 Dark Down 19.3 207.3 Really Low 11:28:51 - 11:47:11 9342
Patrick 11:37:59 -18.4 Dark Down 18.9 207.9 Really Low 11:28:49 - 11:47:09 9338
Idyllwild 11:38:07 -21.2 Dark Down 21.4 205.8 Low 11:28:57 - 11:47:17 9317
Lake Havasu City 11:37:59 -19.2 Dark Down 19.8 207.6 Really Low 11:28:49 - 11:47:09 9301
Calipatria 11:38:02 -20.6 Dark Down 21.5 206.9 Low 11:28:52 - 11:47:12 9255
Yuma 11:37:58 -20.2 Dark Down 21.6 207.7 Low 11:28:48 - 11:47:08 9210
George/Scottsdale 11:37:48 -17.6 AT Down 19.6 209.8 Really Low 11:28:38 - 11:46:58 9198

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 523699, (2024/04/10 11:41UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 16.29 155
7Del Sco       16:00:20.0 -22:37:19  2.3 11.99 162
2 Lup          15:17:49.8 -30:08:55  3.7  0.53 167
PPM 264088     15:18:55.6 -29:13:17  8.4  0.60 167
PPM 264053     15:17:25.3 -29:35:21  9.9  0.11 167
523699         15:16:58.3 -29:38:56 15.2       167
Positions are for J2000

Event circumstances last updated at 2023/07/04 04:10:11 UT

Marc W. Buie, Southwest Research Institute

RECON