RECON: TNO occultation with 470593

Event between (470593) 08LP17 and star GA0620:22340066 with event index number of 2271721

Geocentric closest approach at 2024/05/15 11:05:19 UTC

J2000 position of star is 17:45:05.1 -26:46:34
Equinox of date position of star is 17:46:30.4 -26:47:03
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 122 degrees from the moon. Moon is 50% illuminated.
TNO apparent brightness V=21.5

[RECON map]
TNO is 31.4 AU from the Sun and 30.6 AU from the Earth.
The TNO is moving 18.5 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 112 seconds.
The 1-sigma cross-track error in the shadow position is 1273 km.
The sky-plane scale is 22162.6 km/arcsec.

The TNO has an absolute magnitude Hv=6.5
Diameter=346.7 km assuming a 5% albedo -- 16.1 sec chord
Diameter=141.6 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 470593, (2024/05/15 11:06UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.3 -26:29:02  0.9 16.90 105
34Ups Sco      17:32:25.4 -37:18:46  2.7 10.95 119
3 Sgr          17:49:05.8 -27:50:16  4.2  1.19 123
PPM 267257     17:47:33.1 -26:58:48  7.6  0.29 122
PPM 267246     17:47:11.5 -26:39:29  9.6  0.18 122
470593         17:46:36.4 -26:47:05 16.7       122
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 17.9 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)
Kamloops 11:03:54 -9.2 NT Down 11.7 191.8 Really Low 10:54:07 - 11:13:42 8795
Victoria 11:04:04 -12.1 AT Down 14.2 189.2 Really Low 10:54:16 - 11:13:51 8776
Peachland 11:03:53 -9.6 NT Down 12.5 192.4 Really Low 10:54:05 - 11:13:40 8760
Kelowna 11:03:52 -9.4 NT Down 12.4 192.7 Really Low 10:54:04 - 11:13:39 8759
Summerland 11:03:51 -9.7 NT Down 12.7 192.5 Really Low 10:54:04 - 11:13:39 8755
Penticton 11:03:52 -9.7 NT Down 12.7 192.6 Really Low 10:54:05 - 11:13:40 8751
Oliver 11:03:51 -9.9 NT Down 13.0 192.6 Really Low 10:54:04 - 11:13:39 8740
Anarchist Mountain Observatory 11:03:50 -9.9 NT Down 13.2 192.8 Really Low 10:54:03 - 11:13:38 8733
Tonasket 11:03:50 -10.2 NT Down 13.5 192.8 Really Low 10:54:02 - 11:13:37 8724
Okanogan 11:03:51 -10.5 NT Down 13.8 192.6 Really Low 10:54:03 - 11:13:38 8716
Brewster 11:03:51 -10.8 NT Down 14.1 192.5 Really Low 10:54:04 - 11:13:39 8710
Manson/Chelan 11:03:53 -11.1 NT Down 14.4 192.2 Really Low 10:54:05 - 11:13:40 8709
Wenatchee 11:03:53 -11.5 NT Down 14.9 192.0 Really Low 10:54:05 - 11:13:40 8696
Ellensburg 11:03:53 -11.9 NT Down 15.3 191.9 Really Low 10:54:06 - 11:13:41 8686
Yakima 11:03:53 -12.2 AT Down 15.7 191.9 Really Low 10:54:06 - 11:13:41 8673
Toppenish/White Swan 11:03:52 -12.3 AT Down 15.9 192.0 Really Low 10:54:05 - 11:13:40 8662
Goldendale 11:03:53 -12.9 AT Down 16.5 191.7 Really Low 10:54:06 - 11:13:41 8650
The Dalles 11:03:55 -13.2 AT Down 16.8 191.4 Really Low 10:54:07 - 11:13:42 8647
Maupin 11:03:54 -13.5 AT Down 17.2 191.5 Really Low 10:54:06 - 11:13:41 8630
PNWRO 11:03:46 -11.8 NT Down 16.0 193.4 Really Low 10:53:59 - 11:13:34 8625
Sisters 11:03:56 -14.4 AT Down 18.1 191.1 Really Low 10:54:08 - 11:13:43 8606
Bend 11:03:54 -14.4 AT Down 18.3 191.3 Really Low 10:54:07 - 11:13:42 8593
Oregon Observatory 11:03:55 -14.6 AT Down 18.5 191.2 Really Low 10:54:07 - 11:13:42 8588
Sleaford 11:03:10 -1.5 CT Down 7.6 204.4 Really Low 10:53:22 - 11:12:57 8581
North Lake 11:03:53 -14.8 AT Down 19.0 191.8 Really Low 10:54:05 - 11:13:40 8554
Chiloquin 11:03:56 -15.7 AT Down 19.8 190.9 Really Low 10:54:09 - 11:13:44 8542
Klamath Falls 11:03:56 -15.9 AT Down 20.2 191.0 Low 10:54:08 - 11:13:43 8526
Lakeview 11:03:49 -15.2 AT Down 20.0 192.3 Really Low 10:54:02 - 11:13:37 8501
Cedarville 11:03:48 -15.6 AT Down 20.6 192.6 Low 10:54:01 - 11:13:36 8470
Fall River/Burney 11:03:53 -16.6 AT Down 21.3 191.5 Low 10:54:05 - 11:13:40 8469
Susanville 11:03:49 -16.6 AT Down 21.8 192.2 Low 10:54:02 - 11:13:37 8429
Greenville 11:03:51 -17.0 AT Down 22.1 191.9 Low 10:54:03 - 11:13:38 8421
Gimple 11:03:50 -17.0 AT Down 22.1 192.0 Low 10:54:03 - 11:13:38 8420
Quincy 11:03:51 -17.1 AT Down 22.3 192.0 Low 10:54:03 - 11:13:38 8412
Portola 11:03:47 -17.0 AT Down 22.3 192.4 Low 10:54:00 - 11:13:35 8398
Reno 11:03:45 -16.8 AT Down 22.5 193.1 Low 10:53:58 - 11:13:33 8375
Carson City 11:03:45 -17.0 AT Down 22.8 193.1 Low 10:53:58 - 11:13:33 8357
Gardnerville 11:03:45 -17.2 AT Down 23.1 193.2 Low 10:53:57 - 11:13:32 8345
Yerington 11:03:42 -16.8 AT Down 22.9 193.7 Low 10:53:55 - 11:13:30 8336
Hawthorne 11:03:40 -16.8 AT Down 23.3 194.3 Low 10:53:52 - 11:13:27 8304
Lee Vining 11:03:42 -17.5 AT Down 23.9 193.9 Low 10:53:54 - 11:13:29 8286
Tonopah 11:03:33 -16.3 AT Down 23.4 195.6 Low 10:53:46 - 11:13:21 8254
Bishop 11:03:38 -17.5 AT Down 24.3 194.6 Low 10:53:51 - 11:13:26 8241
Beatty 11:03:31 -16.8 AT Down 24.5 196.2 Low 10:53:43 - 11:13:18 8185
Indian Springs 11:03:25 -16.4 AT Down 24.5 197.2 Low 10:53:38 - 11:13:13 8145
Henderson 11:03:22 -16.3 AT Down 24.9 198.0 Low 10:53:35 - 11:13:10 8101
Dunrhomin 11:02:47 -7.7 NT Down 18.1 206.1 Really Low 10:52:59 - 11:12:34 8088
CU-SBO 11:02:46 -7.9 NT Down 18.4 206.0 Really Low 10:52:58 - 11:12:33 8078
Wildwood 11:03:37 -19.8 Dark Down 27.6 194.8 Low 10:53:49 - 11:13:24 8070
Laughlin/Bullhead City 11:03:20 -16.6 AT Down 25.6 198.5 Low 10:53:32 - 11:13:07 8045
Patrick 11:03:17 -16.0 AT Down 25.2 199.1 Low 10:53:29 - 11:13:04 8043
Kingman/Dolan Springs 11:03:17 -16.3 AT Down 25.4 198.9 Low 10:53:30 - 11:13:05 8035
Mohave Valley 11:03:19 -16.8 AT Down 25.9 198.5 Low 10:53:32 - 11:13:07 8029
Idyllwild 11:03:28 -18.9 Dark Down 27.5 196.7 Low 10:53:40 - 11:13:15 8011
Lake Havasu City 11:03:18 -16.9 AT Down 26.2 198.8 Low 10:53:30 - 11:13:05 8001
Parker 11:03:18 -17.1 AT Down 26.5 198.9 Low 10:53:30 - 11:13:05 7980
Calipatria 11:03:22 -18.5 Dark Down 27.8 197.9 Low 10:53:35 - 11:13:10 7949
Yuma 11:03:18 -18.2 Dark Down 28.0 198.8 Low 10:53:31 - 11:13:06 7904
George/Scottsdale 11:03:07 -15.8 AT Down 26.2 201.2 Low 10:53:19 - 11:12:54 7899

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 470593, (2024/05/15 11:06UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 16.90 105
34Ups Sco      17:30:45.8 -37:17:46  2.7 10.95 119
3 Sgr          17:47:33.6 -27:49:51  4.2  1.19 123
PPM 267257     17:46:01.6 -26:58:20  7.6  0.29 122
PPM 267246     17:45:40.2 -26:39:00  9.6  0.18 122
470593         17:45:05.1 -26:46:34 16.7       122
Positions are for J2000

Event circumstances last updated at 2022/10/12 04:24:32 UT

Marc W. Buie, Southwest Research Institute

RECON