RECON: TNO occultation with 508788

Event between (508788) 00CQ114 and star GA0900:03841653 with event index number of 1227144

Geocentric closest approach at 2022/12/04 10:18:27 UTC

J2000 position of star is 12:12:02.1 +00:26:49
Equinox of date position of star is 12:13:12.0 +00:19:13
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 153 degrees from the moon. Moon is 87% illuminated.
TNO apparent brightness V=23.6

[RECON map]
TNO is 47.4 AU from the Sun and 47.8 AU from the Earth.
The TNO is moving 14.6 km/sec on the sky relative to the star, or, 1.5 arcsec/hr.
The 1-sigma error in the time of the event is 803 seconds.
The 1-sigma cross-track error in the shadow position is 5836 km.
The sky-plane scale is 34646.0 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=274.2 km assuming a 5% albedo -- 18.7 sec chord
Diameter=111.9 km assuming a 30% albedo -- 7.6 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 508788, (2022/12/04 10:18UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:24.2 -11:16:49  1.0 21.57 174
Denebola       11:50:13.7 +14:26:38  2.1 15.22 141
10 Vir         12:10:51.8 +01:46:10  5.9  1.56 152
PPM 158596     12:12:35.9 +00:03:58  8.5  0.30 153
508788         12:13:12.6 +00:19:10 16.9       154
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 1.1 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.0 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 10:12:42 -41.8 Dark Up 16.8 112.0 Really Low 09:57:42 - 10:27:42 -6371
Kamloops 10:12:12 -50.6 Dark Up 8.5 99.8 Really Low 09:57:12 - 10:27:12 -6621
Kelowna 10:12:11 -50.5 Dark Up 9.2 100.3 Really Low 09:57:11 - 10:27:11 -6695
Peachland 10:12:11 -50.8 Dark Up 9.0 100.1 Really Low 09:57:11 - 10:27:11 -6707
Summerland 10:12:11 -50.8 Dark Up 9.1 100.1 Really Low 09:57:11 - 10:27:11 -6721
Penticton 10:12:11 -50.7 Dark Up 9.2 100.2 Really Low 09:57:11 - 10:27:11 -6727
Oliver 10:12:09 -50.9 Dark Up 9.2 100.1 Really Low 09:57:09 - 10:27:09 -6761
Anarchist Mountain Observatory 10:12:10 -50.9 Dark Up 9.4 100.3 Really Low 09:57:10 - 10:27:10 -6776
Tonasket 10:12:08 -51.1 Dark Up 9.4 100.2 Really Low 09:57:08 - 10:27:08 -6807
Okanogan 10:12:07 -51.4 Dark Up 9.4 100.0 Really Low 09:57:07 - 10:27:07 -6841
Victoria 10:12:04 -53.4 Dark Up 6.8 97.1 Really Low 09:57:04 - 10:27:04 -6845
Brewster 10:12:05 -51.6 Dark Up 9.3 99.8 Really Low 09:57:05 - 10:27:05 -6869
Manson/Chelan 10:12:04 -51.9 Dark Up 9.1 99.5 Really Low 09:57:04 - 10:27:04 -6891
Wenatchee 10:12:03 -52.3 Dark Up 9.0 99.3 Really Low 09:57:03 - 10:27:03 -6939
Ellensburg 10:12:01 -52.6 Dark Up 8.9 99.0 Really Low 09:57:01 - 10:27:01 -6981
Yakima 10:11:59 -52.8 Dark Up 9.0 98.9 Really Low 09:56:59 - 10:26:59 -7022
Toppenish/White Swan 10:11:58 -52.8 Dark Up 9.1 99.0 Really Low 09:56:58 - 10:26:58 -7043
PNWRO 10:11:59 -52.1 Dark Up 10.2 100.1 Really Low 09:56:59 - 10:26:59 -7071
Goldendale 10:12:00 -53.3 Dark Up 8.9 98.6 Really Low 09:57:00 - 10:27:00 -7100
The Dalles 10:11:55 -53.7 Dark Up 8.7 98.3 Really Low 09:56:55 - 10:26:55 -7125
Maupin 10:11:56 -53.8 Dark Up 8.8 98.3 Really Low 09:56:56 - 10:26:56 -7166
Sisters 10:11:53 -54.5 Dark Up 8.6 97.8 Really Low 09:56:53 - 10:26:53 -7258
Bend 10:11:51 -54.5 Dark Up 8.8 98.0 Really Low 09:56:51 - 10:26:51 -7281
Oregon Observatory 10:11:53 -54.6 Dark Up 8.7 97.9 Really Low 09:56:53 - 10:26:53 -7299
North Lake 10:11:50 -54.6 Dark Up 9.2 98.1 Really Low 09:56:50 - 10:26:50 -7361
Chiloquin 10:11:46 -55.5 Dark Up 8.6 97.4 Really Low 09:56:46 - 10:26:46 -7436
Lakeview 10:11:46 -54.7 Dark Up 9.7 98.3 Really Low 09:56:46 - 10:26:46 -7467
Klamath Falls 10:11:44 -55.6 Dark Up 8.7 97.4 Really Low 09:56:44 - 10:26:44 -7471
Dunrhomin 10:12:12 -44.1 Dark Up 21.4 108.7 Low 09:57:12 - 10:27:12 -7514
Cedarville 10:11:45 -54.8 Dark Up 10.0 98.3 Really Low 09:56:45 - 10:26:45 -7534
CU-SBO 10:12:13 -44.2 Dark Up 21.4 108.5 Low 09:57:13 - 10:27:13 -7541
Fall River/Burney 10:11:42 -55.8 Dark Up 9.1 97.4 Really Low 09:56:42 - 10:26:42 -7591
Susanville 10:11:43 -55.5 Dark Up 9.8 97.8 Really Low 09:56:43 - 10:26:43 -7652
Gimple 10:11:41 -55.8 Dark Up 9.6 97.6 Really Low 09:56:41 - 10:26:41 -7683
Greenville 10:11:41 -55.9 Dark Up 9.6 97.6 Really Low 09:56:41 - 10:26:41 -7683
Quincy 10:11:41 -55.9 Dark Up 9.6 97.5 Really Low 09:56:41 - 10:26:41 -7704
Portola 10:11:42 -55.6 Dark Up 10.0 97.8 Really Low 09:56:42 - 10:26:42 -7714
Reno 10:11:42 -55.2 Dark Up 10.5 98.2 Really Low 09:56:42 - 10:26:42 -7738
Carson City 10:11:39 -55.4 Dark Up 10.6 98.2 Really Low 09:56:39 - 10:26:39 -7776
Yerington 10:11:42 -54.9 Dark Up 11.1 98.5 Really Low 09:56:42 - 10:26:42 -7792
Gardnerville 10:11:42 -55.4 Dark Up 10.7 98.2 Really Low 09:56:42 - 10:26:42 -7801
Hawthorne 10:11:42 -54.7 Dark Up 11.6 98.8 Really Low 09:56:42 - 10:26:42 -7837
Tonopah 10:11:41 -53.7 Dark Up 12.7 99.6 Really Low 09:56:41 - 10:26:41 -7875
Lee Vining 10:11:41 -55.2 Dark Up 11.3 98.4 Really Low 09:56:41 - 10:26:41 -7900
Bishop 10:11:38 -54.8 Dark Up 11.9 98.7 Really Low 09:56:38 - 10:26:38 -7958
Beatty 10:11:41 -53.7 Dark Up 13.3 99.6 Really Low 09:56:41 - 10:26:41 -7994
Indian Springs 10:11:41 -52.9 Dark Up 14.2 100.2 Really Low 09:56:41 - 10:26:41 -8019
Henderson 10:11:42 -52.4 Dark Up 14.9 100.5 Really Low 09:56:42 - 10:26:42 -8070
Patrick 10:11:44 -51.6 Dark Up 15.9 101.1 Really Low 09:56:44 - 10:26:44 -8125
Kingman/Dolan Springs 10:11:41 -51.8 Dark Up 15.8 100.9 Really Low 09:56:41 - 10:26:41 -8151
Laughlin/Bullhead City 10:11:41 -52.3 Dark Up 15.3 100.6 Really Low 09:56:41 - 10:26:41 -8158
Mohave Valley 10:11:41 -52.3 Dark Up 15.4 100.5 Really Low 09:56:41 - 10:26:41 -8188
Lake Havasu City 10:11:42 -52.1 Dark Up 15.7 100.5 Really Low 09:56:42 - 10:26:42 -8228
Parker 10:11:39 -52.2 Dark Up 15.8 100.5 Really Low 09:56:39 - 10:26:39 -8265
George/Scottsdale 10:11:46 -50.2 Dark Up 17.8 101.8 Really Low 09:56:46 - 10:26:46 -8284
Wildwood 10:11:32 -55.7 Dark Up 12.2 97.9 Really Low 09:56:32 - 10:26:32 -8309
Idyllwild 10:11:38 -54.2 Dark Up 13.8 98.9 Really Low 09:56:38 - 10:26:38 -8332
Calipatria 10:11:37 -53.3 Dark Up 14.9 99.4 Really Low 09:56:37 - 10:26:37 -8386
Yuma 10:11:36 -52.6 Dark Up 15.7 99.8 Really Low 09:56:36 - 10:26:36 -8424

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 508788, (2022/12/04 10:18UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 21.57 174
Denebola       11:49:02.9 +14:34:17  2.1 15.22 141
10 Vir         12:09:41.4 +01:53:49  5.9  1.56 152
PPM 158596     12:11:25.4 +00:11:37  8.5  0.30 153
508788         12:12:02.1 +00:26:49 16.9       153
Positions are for J2000

Event circumstances last updated at 2022/10/02 04:10:41 UT

Marc W. Buie, Southwest Research Institute

RECON