RECON: TNO occultation with 10WG9

Event between 10WG9 and star GA1220:02804415 with event index number of 2108908

Geocentric closest approach at 2023/11/01 11:17:27 UTC

J2000 position of star is 06:34:37.4 +33:00:31
Equinox of date position of star is 06:36:04.7 +32:59:22
Stellar brightness G=14.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 14 degrees from the moon. Moon is 85% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 27.0 AU from the Sun and 26.5 AU from the Earth.
The TNO is moving 17.1 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 267 seconds.
The 1-sigma cross-track error in the shadow position is 5178 km.
The sky-plane scale is 19231.6 km/arcsec.

The TNO has an absolute magnitude Hv=8.3
Diameter=133.0 km assuming a 5% albedo -- 7.8 sec chord
Diameter=54.3 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 10WG9, (2023/11/01 11:17UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:46.4 +27:58:00  1.1 15.99  29
34Bet Aur      06:01:16.7 +44:56:50  1.9 13.73  18
PPM 071742     06:34:00.5 +32:26:09  6.0  0.72  13
PPM 071825     06:37:11.1 +32:33:21  7.9  0.48  14
PPM 071786     06:35:48.2 +33:09:35 10.0  0.19  14
PPM 071823     06:37:02.5 +32:59:10 10.6  0.18  14
10WG9          06:36:11.1 +32:59:17 14.7        14
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 3.4 sigma about the mid-time.
The median site spacing is 19.2 km RECON observability=1.0 and success probability=11.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 11:18:27 -24.9 Dark Up 70.5 194.0 Up 11:03:27 - 11:33:27 1685
Kamloops 11:19:07 -33.9 Dark Up 71.2 156.7 Up 11:04:07 - 11:34:07 950
Kelowna 11:19:01 -33.6 Dark Up 72.2 158.0 Up 11:04:01 - 11:34:01 913
Peachland 11:19:02 -33.8 Dark Up 72.2 157.1 Up 11:04:02 - 11:34:02 891
Summerland 11:19:01 -33.8 Dark Up 72.4 157.1 Up 11:04:01 - 11:34:01 881
Penticton 11:19:00 -33.8 Dark Up 72.4 157.3 Up 11:04:00 - 11:34:00 879
Oliver 11:19:00 -33.9 Dark Up 72.8 156.9 Up 11:04:00 - 11:34:00 848
Anarchist Mountain Observatory 11:18:58 -33.8 Dark Up 73.0 157.2 Up 11:03:58 - 11:33:58 840
Tonasket 11:18:57 -34.0 Dark Up 73.2 156.6 Up 11:03:57 - 11:33:57 809
Dunrhomin 11:17:34 -25.7 Dark Up 81.3 215.8 Up 11:02:34 - 11:32:34 788
Okanogan 11:18:57 -34.2 Dark Up 73.5 155.7 Up 11:03:57 - 11:33:57 773
CU-SBO 11:17:33 -25.8 Dark Up 81.5 216.2 Up 11:02:33 - 11:32:33 762
Brewster 11:18:57 -34.4 Dark Up 73.7 154.7 Up 11:03:57 - 11:33:57 740
Manson/Chelan 11:18:57 -34.7 Dark Up 73.8 153.4 Up 11:03:57 - 11:33:57 705
Wenatchee 11:18:57 -35.0 Dark Up 74.1 152.2 Up 11:03:57 - 11:33:57 655
Victoria 11:19:11 -36.5 Dark Up 72.2 146.0 Up 11:04:11 - 11:34:11 632
Ellensburg 11:18:55 -35.2 Dark Up 74.4 150.8 Up 11:03:55 - 11:33:55 608
PNWRO 11:18:46 -34.5 Dark Up 75.8 154.0 Up 11:03:46 - 11:33:46 589
Yakima 11:18:55 -35.4 Dark Up 74.8 150.0 Up 11:03:55 - 11:33:55 570
Toppenish/White Swan 11:18:53 -35.3 Dark Up 75.0 150.1 Up 11:03:53 - 11:33:53 557
Goldendale 11:18:53 -35.8 Dark Up 75.3 147.7 Up 11:03:53 - 11:33:53 488
The Dalles 11:18:53 -36.1 Dark Up 75.4 146.2 Up 11:03:53 - 11:33:53 452
Maupin 11:18:52 -36.2 Dark Up 75.8 145.6 Up 11:03:52 - 11:33:52 418
Sisters 11:18:51 -36.8 Dark Up 76.3 142.0 Up 11:03:51 - 11:33:51 315
Bend 11:18:49 -36.7 Dark Up 76.6 142.1 Up 11:03:49 - 11:33:49 304
Oregon Observatory 11:18:49 -36.8 Dark Up 76.7 141.3 Up 11:03:49 - 11:33:49 282
North Lake 11:18:45 -36.6 Dark Up 77.4 141.2 Up 11:03:45 - 11:33:45 247
Lakeview 11:18:39 -36.5 Dark Up 78.5 139.8 Up 11:03:39 - 11:33:39 174
Chiloquin 11:18:46 -37.5 Dark Up 77.4 136.2 Up 11:03:46 - 11:33:46 141
Cedarville 11:18:36 -36.6 Dark Up 79.0 138.2 Up 11:03:36 - 11:33:36 121
Klamath Falls 11:18:45 -37.5 Dark Up 77.7 135.3 Up 11:03:45 - 11:33:45 113
Fall River/Burney 11:18:39 -37.6 Dark Up 78.7 132.4 Up 11:03:39 - 11:33:39 20
Susanville 11:18:35 -37.2 Dark Up 79.6 132.4 Up 11:03:35 - 11:33:35 -21
Reno 11:18:28 -36.8 Dark Up 80.6 131.6 Up 11:03:28 - 11:33:28 -45
Gimple 11:18:35 -37.4 Dark Up 79.6 130.5 Up 11:03:35 - 11:33:35 -46
Greenville 11:18:35 -37.5 Dark Up 79.6 130.3 Up 11:03:35 - 11:33:35 -46
Portola 11:18:31 -37.2 Dark Up 80.1 130.4 Up 11:03:31 - 11:33:31 -51
Tonopah 11:18:12 -35.1 Dark Up 83.1 135.1 Up 11:03:12 - 11:33:12 -52
Yerington 11:18:23 -36.4 Dark Up 81.4 131.4 Up 11:03:23 - 11:33:23 -64
Quincy 11:18:35 -37.5 Dark Up 79.7 129.4 Up 11:03:35 - 11:33:35 -68
Carson City 11:18:26 -36.8 Dark Up 80.9 129.9 Up 11:03:26 - 11:33:26 -77
Hawthorne 11:18:19 -36.1 Dark Up 82.0 131.1 Up 11:03:19 - 11:33:19 -80
Gardnerville 11:18:25 -36.8 Dark Up 81.0 128.9 Up 11:03:25 - 11:33:25 -97
Indian Springs 11:18:00 -34.2 Dark Up 85.0 133.7 Up 11:03:00 - 11:33:00 -106
Patrick 11:17:48 -32.9 Dark Up 86.8 137.7 Up 11:02:48 - 11:32:48 -111
Henderson 11:17:55 -33.7 Dark Up 85.7 134.0 Up 11:02:55 - 11:32:55 -117
Beatty 11:18:05 -34.9 Dark Up 84.1 129.8 Up 11:03:05 - 11:33:05 -133
Kingman/Dolan Springs 11:17:48 -33.0 Dark Up 86.8 132.8 Up 11:02:48 - 11:32:48 -141
George/Scottsdale 11:17:33 -31.4 Dark Up 89.1 143.3 Up 11:02:33 - 11:32:33 -147
Lee Vining 11:18:19 -36.6 Dark Up 82.0 126.0 Up 11:03:19 - 11:33:19 -157
Laughlin/Bullhead City 11:17:50 -33.5 Dark Up 86.5 127.6 Up 11:02:50 - 11:32:50 -172
Bishop 11:18:14 -36.1 Dark Up 82.8 125.2 Up 11:03:14 - 11:33:14 -175
Mohave Valley 11:17:49 -33.5 Dark Up 86.7 123.8 Up 11:02:49 - 11:32:49 -196
Lake Havasu City 11:17:46 -33.3 Dark Up 87.1 119.6 Up 11:02:46 - 11:32:46 -218
Parker 11:17:45 -33.3 Dark Up 87.2 113.5 Up 11:02:45 - 11:32:45 -247
Yuma 11:17:41 -33.7 Dark Up 87.2 82.7 Up 11:02:41 - 11:32:41 -395
Calipatria 11:17:46 -34.4 Dark Up 86.4 90.7 Up 11:02:46 - 11:32:46 -406
Idyllwild 11:17:54 -35.3 Dark Up 85.4 97.6 Up 11:02:54 - 11:32:54 -416
Wildwood 11:18:03 -36.8 Dark Up 83.9 98.2 Up 11:03:03 - 11:33:03 -484

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 10WG9, (2023/11/01 11:17UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 15.99  29
34Bet Aur      05:59:31.6 +44:56:51  1.9 13.73  18
PPM 071742     06:32:27.1 +32:27:18  6.0  0.72  13
PPM 071825     06:35:37.7 +32:34:37  7.9  0.48  14
PPM 071786     06:34:14.3 +33:10:48 10.0  0.19  14
PPM 071823     06:35:28.8 +33:00:25 10.6  0.18  14
10WG9          06:34:37.4 +33:00:31 14.7        14
Positions are for J2000

Event circumstances last updated at 2022/03/22 00:39:36 UT

Marc W. Buie, Southwest Research Institute

RECON