RECON: TNO occultation with 523703

Event between (523703) 14HX199 and star GA0740:08638058 with event index number of 2755058

Geocentric closest approach at 2029/05/22 09:07:28 UTC

J2000 position of star is 17:27:47.3 -15:52:50
Equinox of date position of star is 17:29:08.2 -15:53:54
Stellar brightness G=13.7, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 96 degrees from the moon. Moon is 64% illuminated.
Apparent brightness V=22.1

[RECON map]
Object is 30.9 AU from the Sun and 30.0 AU from the Earth.
Apparent velocity is 21.6 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 196 seconds.
The 1-sigma cross-track error in the shadow position is 1662 km.
The sky-plane scale is 21730.4 km/arcsec.

The object has an absolute magnitude Hv=7.2
Diameter=221.8 km assuming a 5% albedo -- 10.4 sec chord
Diameter=90.6 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 523703, (2029/05/22 09:03UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.9 -26:29:40  0.9 17.20  82
35Eta Oph      17:12:03.9 -15:45:33  2.6  4.19  91
PPM 232892     17:20:01.0 -16:20:27  5.9  2.31  93
PPM 233087     17:28:51.3 -15:52:34  6.6  0.15  95
PPM 233099     17:29:18.9 -15:59:23  9.6  0.10  96
523703         17:29:28.8 -15:54:10 13.7        96
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 4.6 sigma about the mid-time.
The median site spacing is 19.6 km RECON observability=1.0 and success probability=1.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 09:07:15 -12.3 AT Down 21.6 189.5 Low 08:52:15 - 09:22:15 4940
Kamloops 09:08:01 -17.2 AT Up 23.3 174.7 Low 08:53:01 - 09:23:01 4832
Kelowna 09:07:57 -17.8 AT Down 24.2 175.6 Low 08:52:57 - 09:22:57 4800
Peachland 09:07:58 -18.0 AT Down 24.3 175.3 Low 08:52:58 - 09:22:58 4793
Summerland 09:07:58 -18.1 Dark Down 24.4 175.4 Low 08:52:58 - 09:22:58 4787
Penticton 09:07:57 -18.1 Dark Down 24.5 175.5 Low 08:52:57 - 09:22:57 4784
Oliver 09:07:58 -18.5 Dark Down 24.8 175.5 Low 08:52:58 - 09:22:58 4768
Anarchist Mountain Observatory 09:07:57 -18.6 Dark Down 25.0 175.7 Low 08:52:57 - 09:22:57 4761
Okanogan 09:07:58 -19.3 Dark Down 25.6 175.5 Low 08:52:58 - 09:22:58 4728
Brewster 09:07:58 -19.6 Dark Down 25.9 175.2 Low 08:52:58 - 09:22:58 4714
Victoria 09:08:11 -19.8 Dark Up 25.2 171.5 Low 08:53:11 - 09:23:11 4712
Manson/Chelan 09:08:00 -19.8 Dark Down 26.1 174.8 Low 08:53:00 - 09:23:00 4702
Wenatchee 09:08:01 -20.3 Dark Down 26.6 174.6 Low 08:53:01 - 09:23:01 4677
Ellensburg 09:08:01 -20.8 Dark Up 26.9 174.4 Low 08:53:01 - 09:23:01 4655
Yakima 09:08:02 -21.1 Dark Up 27.4 174.3 Low 08:53:02 - 09:23:02 4634
Toppenish/White Swan 09:08:01 -21.3 Dark Down 27.6 174.5 Low 08:53:01 - 09:23:01 4623
PNWRO 09:07:56 -21.3 Dark Down 28.0 176.1 Low 08:52:56 - 09:22:56 4613
The Dalles 09:08:04 -22.2 Dark Up 28.3 173.6 Low 08:53:04 - 09:23:04 4577
Maupin 09:08:04 -22.6 Dark Up 28.7 173.7 Low 08:53:04 - 09:23:04 4555
Sisters 09:08:06 -23.5 Dark Up 29.6 173.1 Low 08:53:06 - 09:23:06 4504
Bend 09:08:05 -23.7 Dark Up 29.8 173.4 Low 08:53:05 - 09:23:05 4493
Oregon Observatory 09:08:06 -23.9 Dark Up 30.0 173.2 Low 08:53:06 - 09:23:06 4482
Chiloquin 09:08:07 -25.3 Dark Up 31.2 172.7 Up 08:53:07 - 09:23:07 4403
Klamath Falls 09:08:07 -25.6 Dark Up 31.6 172.8 Up 08:53:07 - 09:23:07 4384
Cedarville 09:08:02 -25.9 Dark Down 32.4 174.5 Up 08:53:02 - 09:23:02 4353
Dunrhomin 09:07:03 -22.2 Dark Down 33.1 191.4 Up 08:52:03 - 09:22:03 4332
Nikitin 09:07:03 -22.3 Dark Down 33.3 191.4 Up 08:52:03 - 09:22:03 4321
CU-SBO 09:07:04 -22.4 Dark Down 33.4 191.3 Up 08:52:04 - 09:22:04 4317
Fall River/Burney 09:08:07 -26.6 Dark Up 32.8 173.1 Up 08:53:07 - 09:23:07 4315
Gimple 09:08:04 -27.4 Dark Up 33.7 173.6 Up 08:53:04 - 09:23:04 4263
Greenville 09:08:05 -27.4 Dark Up 33.7 173.5 Up 08:53:05 - 09:23:05 4263
Quincy 09:08:04 -27.6 Dark Up 33.9 173.5 Up 08:53:04 - 09:23:04 4250
Portola 09:08:03 -27.6 Dark Down 34.1 174.0 Up 08:53:03 - 09:23:03 4246
Reno 09:08:00 -27.7 Dark Down 34.4 174.8 Up 08:53:00 - 09:23:00 4233
Carson City 09:08:00 -28.0 Dark Down 34.8 174.8 Up 08:53:00 - 09:23:00 4211
Yerington 09:07:58 -28.0 Dark Down 35.0 175.5 Up 08:52:58 - 09:22:58 4202
Gardnerville 09:08:00 -28.2 Dark Down 35.0 174.8 Up 08:53:00 - 09:23:00 4195
Hawthorne 09:07:56 -28.3 Dark Down 35.5 176.1 Up 08:52:56 - 09:22:56 4176
Lee Vining 09:07:58 -29.0 Dark Down 36.0 175.5 Up 08:52:58 - 09:22:58 4136
Bishop 09:07:55 -29.3 Dark Down 36.7 176.3 Up 08:52:55 - 09:22:55 4101
Beatty 09:07:48 -29.3 Dark Down 37.2 178.2 Up 08:52:48 - 09:22:48 4079
Patrick 09:07:36 -29.7 Dark Down 38.7 181.7 Up 08:52:36 - 09:22:36 3993
Laughlin/Bullhead City 09:07:39 -30.2 Dark Down 38.9 180.8 Up 08:52:39 - 09:22:39 3972
Lake Havasu City 09:07:38 -30.7 Dark Down 39.6 181.2 Up 08:52:38 - 09:22:38 3926
George/Scottsdale 09:07:27 -30.5 Dark Down 40.3 184.2 Up 08:52:27 - 09:22:27 3881
Wildwood 09:07:56 -32.5 Dark Down 39.9 175.9 Up 08:52:56 - 09:22:56 3873
Idyllwild 09:07:48 -32.2 Dark Down 40.4 178.2 Up 08:52:48 - 09:22:48 3860
Calipatria 09:07:43 -32.4 Dark Down 41.0 179.7 Up 08:52:43 - 09:22:43 3821
Yuma 09:07:39 -32.4 Dark Down 41.4 180.8 Up 08:52:39 - 09:22:39 3795

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 523703, (2029/05/22 09:03UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 17.20  82
35Eta Oph      17:10:22.7 -15:43:29  2.6  4.19  91
PPM 232892     17:18:19.3 -16:18:42  5.9  2.31  93
PPM 233087     17:27:09.9 -15:51:12  6.6  0.15  95
PPM 233099     17:27:37.4 -15:58:03  9.6  0.10  96
523703         17:27:47.3 -15:52:50 13.7        96
Positions are for J2000

Event circumstances last updated at 2023/06/07 02:56:24 UT

Marc W. Buie, Southwest Research Institute

RECON