RECON: TNO occultation with 523704

Event between (523704) 14HB200 and star GA0700:05670953 with event index number of 2263503

Geocentric closest approach at 2022/07/24 05:39:48 UTC

J2000 position of star is 15:11:22.7 -19:57:24
Equinox of date position of star is 15:12:37.6 -20:02:16
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 159 degrees from the moon. Moon is 17% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 29.9 AU from the Sun and 29.6 AU from the Earth.
The TNO is moving 3.8 km/sec on the sky relative to the star, or, 0.6 arcsec/hr.
The 1-sigma error in the time of the event is 391 seconds.
The 1-sigma cross-track error in the shadow position is 1262 km.
The sky-plane scale is 21452.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.5
Diameter=187.1 km assuming a 5% albedo -- 48.9 sec chord
Diameter=76.4 km assuming a 30% albedo -- 20.0 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 523704, (2022/07/24 05:31UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.7 -26:28:48  0.9 19.04 176
27Bet Lib      15:18:13.5 -09:27:53  2.6 10.66 155
PPM 264038     15:17:41.8 -22:28:53  5.5  2.71 160
25Iot2Lib      15:14:36.5 -19:43:52  6.6  0.55 159
PPM 229895     15:13:34.5 -19:52:52  9.7  0.27 159
523704         15:12:40.3 -20:02:27 16.8       159
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 2.3 sigma about the mid-time.
The median site spacing is 14.5 km RECON observability=0.5 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)
Clarence Fulton 05:36:04 -12.7 AT Down 11.9 217.0 Really Low 05:21:04 - 05:51:04 12214
Kelowna 05:36:06 -12.9 AT Down 12.3 216.9 Really Low 05:21:06 - 05:51:06 12203
Peachland 05:36:05 -12.9 AT Down 12.5 216.7 Really Low 05:21:05 - 05:51:05 12200
Summerland 05:36:02 -13.1 AT Down 12.6 216.8 Really Low 05:21:02 - 05:51:02 12196
Penticton 05:35:54 -13.2 AT Down 12.6 216.8 Really Low 05:20:54 - 05:50:54 12194
Oliver 05:35:45 -13.4 AT Down 12.9 216.9 Really Low 05:20:45 - 05:50:45 12184
Anarchist Mountain Observatory 05:35:49 -13.6 AT Down 12.9 217.1 Really Low 05:20:49 - 05:50:49 12179
Tonasket 05:35:41 -13.9 AT Down 13.2 217.0 Really Low 05:20:41 - 05:50:41 12169
Okanogan 05:35:39 -14.1 AT Down 13.5 216.9 Really Low 05:20:39 - 05:50:39 12159
Victoria 05:36:34 -12.5 AT Down 14.8 213.7 Really Low 05:21:34 - 05:51:34 12155
Brewster 05:35:34 -14.2 AT Down 13.9 216.8 Really Low 05:20:34 - 05:50:34 12150
Manson/Chelan 05:35:34 -14.2 AT Down 14.2 216.5 Really Low 05:20:34 - 05:50:34 12143
Wenatchee 05:35:41 -14.5 AT Down 14.6 216.4 Really Low 05:20:41 - 05:50:41 12128
Ellensburg 05:35:34 -14.8 AT Down 15.0 216.3 Really Low 05:20:34 - 05:50:34 12114
Yakima 05:35:29 -15.1 AT Down 15.4 216.3 Really Low 05:20:29 - 05:50:29 12100
Toppenish/White Swan 05:35:17 -15.3 AT Down 15.5 216.4 Really Low 05:20:17 - 05:50:17 12093
Pasco 05:35:03 -15.9 AT Down 15.1 217.5 Really Low 05:20:03 - 05:50:03 12090
PNWRO 05:34:56 -16.2 AT Down 15.2 217.7 Really Low 05:19:56 - 05:49:56 12082
Goldendale 05:35:20 -15.6 AT Down 16.1 216.2 Really Low 05:20:20 - 05:50:20 12073
The Dalles 05:35:20 -15.6 AT Down 16.5 215.9 Really Low 05:20:20 - 05:50:20 12063
Maupin 05:35:10 -16.0 AT Down 16.8 216.0 Really Low 05:20:10 - 05:50:10 12049
Redmond 05:34:56 -16.6 AT Down 17.6 216.0 Really Low 05:19:56 - 05:49:56 12015
Sisters 05:35:03 -16.4 AT Down 17.7 215.7 Really Low 05:20:03 - 05:50:03 12015
Bend 05:34:56 -16.7 AT Down 17.8 216.0 Really Low 05:19:56 - 05:49:56 12007
Oregon Observatory 05:34:54 -16.8 AT Down 18.0 215.9 Really Low 05:19:54 - 05:49:54 12000
La Pine/Gilchrist 05:35:03 -16.9 AT Down 18.2 215.9 Really Low 05:20:03 - 05:50:03 11992
North Lake 05:34:41 -17.5 AT Down 18.3 216.4 Really Low 05:19:41 - 05:49:41 11976
Paisley 05:34:34 -18.1 Dark Down 18.6 216.8 Really Low 05:19:34 - 05:49:34 11954
Chiloquin 05:34:42 -17.6 AT Down 19.3 215.7 Really Low 05:19:42 - 05:49:42 11946
Lakeview 05:34:20 -18.5 Dark Down 18.9 217.1 Really Low 05:19:20 - 05:49:20 11934
Klamath Falls 05:34:41 -17.9 AT Down 19.5 215.9 Really Low 05:19:41 - 05:49:41 11931
Cedarville 05:34:06 -19.1 Dark Down 19.4 217.3 Really Low 05:19:06 - 05:49:06 11906
Fall River/Burney 05:34:17 -18.9 Dark Down 20.3 216.4 Low 05:19:17 - 05:49:17 11881
Susanville 05:33:52 -19.7 Dark Down 20.5 217.1 Low 05:18:52 - 05:48:52 11855
Gimple 05:33:55 -19.9 Dark Down 20.9 217.0 Low 05:18:55 - 05:48:55 11842
Greenville 05:34:06 -19.8 Dark Down 20.9 216.9 Low 05:19:06 - 05:49:06 11842
Quincy 05:33:56 -20.0 Dark Down 21.1 216.9 Low 05:18:56 - 05:48:56 11833
Portola 05:33:44 -20.3 Dark Down 21.0 217.3 Low 05:18:44 - 05:48:44 11828
Dunrhomin 05:31:46 -25.9 Dark Down 12.9 229.3 Really Low 05:16:46 - 05:46:46 11823
Reno 05:33:29 -20.8 Dark Down 20.9 217.9 Low 05:18:29 - 05:48:29 11817
Carson City 05:33:24 -21.0 Dark Down 21.2 218.0 Low 05:18:24 - 05:48:24 11800
Yerington 05:33:11 -21.5 Dark Down 21.1 218.5 Low 05:18:11 - 05:48:11 11792
Gardnerville 05:33:21 -21.3 Dark Down 21.4 218.1 Low 05:18:21 - 05:48:21 11789
Hawthorne 05:32:56 -22.1 Dark Down 21.2 219.1 Low 05:17:56 - 05:47:56 11771
Tonopah 05:32:35 -23.1 Dark Down 20.9 220.3 Low 05:17:35 - 05:47:35 11750
Lee Vining 05:32:56 -22.3 Dark Down 21.9 218.8 Low 05:17:56 - 05:47:56 11743
Bishop 05:32:38 -23.1 Dark Down 22.0 219.5 Low 05:17:38 - 05:47:38 11714
Beatty 05:32:13 -24.2 Dark Down 21.6 220.9 Low 05:17:13 - 05:47:13 11691
Indian Springs 05:31:46 -24.9 Dark Down 21.3 221.8 Low 05:16:46 - 05:46:46 11674
Henderson 05:31:46 -25.7 Dark Down 21.3 222.5 Low 05:16:46 - 05:46:46 11646
Patrick 05:31:46 -26.7 Dark Down 21.2 223.6 Low 05:16:46 - 05:46:46 11613
Kingman/Dolan Springs 05:31:47 -26.8 Dark Down 21.4 223.5 Low 05:16:47 - 05:46:47 11602
CPSLO 05:32:49 -23.5 Dark Down 24.7 218.1 Low 05:17:49 - 05:47:49 11600
Laughlin/Bullhead City 05:31:46 -26.6 Dark Down 21.7 223.1 Low 05:16:46 - 05:46:46 11600
Mohave Valley 05:31:47 -26.8 Dark Down 21.9 223.2 Low 05:16:47 - 05:46:47 11585
Lake Havasu City 05:31:46 -27.2 Dark Down 22.1 223.5 Low 05:16:46 - 05:46:46 11564
Parker 05:31:46 -27.5 Dark Down 22.3 223.6 Low 05:16:46 - 05:46:46 11545
Wildwood 05:31:53 -25.4 Dark Down 24.7 220.1 Low 05:16:53 - 05:46:53 11539
George/Scottsdale 05:31:46 -29.0 Dark Down 21.2 225.7 Low 05:16:46 - 05:46:46 11522
Idyllwild 05:31:46 -26.7 Dark Down 24.0 221.7 Low 05:16:46 - 05:46:46 11522
Blythe 05:31:46 -27.8 Dark Down 22.9 223.5 Low 05:16:46 - 05:46:46 11516
Calipatria 05:31:46 -27.8 Dark Down 23.8 222.9 Low 05:16:46 - 05:46:46 11487
Yuma 05:31:46 -28.5 Dark Down 23.6 223.7 Low 05:16:46 - 05:46:46 11464

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 523704, (2022/07/24 05:31UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 19.04 176
27Bet Lib      15:17:00.3 -09:22:59  2.6 10.66 155
PPM 264038     15:16:23.0 -22:23:58  5.5  2.71 160
25Iot2Lib      15:13:19.1 -19:38:53  6.6  0.55 159
PPM 229895     15:12:17.1 -19:47:50  9.7  0.27 159
523704         15:11:22.7 -19:57:24 16.8       159
Positions are for J2000

Event circumstances last updated at 2021/10/13 01:37:58 UT

Marc W. Buie, Southwest Research Institute

RECON