RECON: TNO occultation with 11BR163

Event between 11BR163 and star GA1160:03234860 with event index number of 1320411

Geocentric closest approach at 2024/01/10 06:15:27 UTC

J2000 position of star is 10:34:16.2 +27:39:04
Equinox of date position of star is 10:35:27.0 +27:32:26
Stellar brightness G=15.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 123 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=22.1

[RECON map]
TNO is 39.2 AU from the Sun and 38.5 AU from the Earth.
The TNO is moving 19.0 km/sec on the sky relative to the star, or, 2.4 arcsec/hr.
The 1-sigma error in the time of the event is 181 seconds.
The 1-sigma cross-track error in the shadow position is 2554 km.
The sky-plane scale is 27901.1 km/arcsec.

The TNO has an absolute magnitude Hv=6.1
Diameter=369.8 km assuming a 5% albedo -- 19.5 sec chord
Diameter=151.0 km assuming a 30% albedo -- 8.0 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 11BR163, (2024/01/10 06:17UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:39.0 +11:50:56  1.3 16.82 123
68Del Leo      11:15:22.9 +20:23:30  2.6 11.55 112
40 LMi         10:44:20.8 +26:11:55  5.6  2.36 121
PPM 100477     10:36:10.3 +27:50:11  7.6  0.33 123
PPM 100455     10:34:37.1 +27:39:01  9.4  0.25 123
PPM 100468     10:35:25.2 +27:20:54 11.9  0.18 123
11BR163        10:35:36.1 +27:31:35 15.8       123
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 28.3 km RECON observability=1.0 and success probability=4.5%
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 06:20:14 -55.2 Dark Down 31.2 83.0 Up 06:05:14 - 06:35:14 7376
Kelowna 06:20:14 -55.4 Dark Down 31.0 82.7 Up 06:05:14 - 06:35:14 7334
Peachland 06:20:15 -55.3 Dark Down 30.8 82.4 Up 06:05:15 - 06:35:15 7324
Summerland 06:20:12 -55.5 Dark Down 30.8 82.4 Up 06:05:12 - 06:35:12 7307
Penticton 06:20:12 -55.5 Dark Down 30.9 82.4 Up 06:05:12 - 06:35:12 7298
Oliver 06:20:14 -55.8 Dark Down 30.9 82.2 Up 06:05:14 - 06:35:14 7259
Anarchist Mountain Observatory 06:20:14 -56.0 Dark Down 31.0 82.3 Up 06:05:14 - 06:35:14 7239
Victoria 06:20:22 -54.3 Dark Down 28.3 79.2 Low 06:05:22 - 06:35:22 7223
Tonasket 06:20:12 -56.2 Dark Down 30.9 82.0 Up 06:05:12 - 06:35:12 7206
Okanogan 06:20:15 -56.3 Dark Down 30.7 81.7 Up 06:05:15 - 06:35:15 7169
Brewster 06:20:14 -56.4 Dark Down 30.6 81.4 Up 06:05:14 - 06:35:14 7141
Manson/Chelan 06:20:16 -56.4 Dark Down 30.3 81.1 Up 06:05:16 - 06:35:16 7121
Wenatchee 06:20:15 -56.6 Dark Down 30.1 80.7 Up 06:05:15 - 06:35:15 7070
Ellensburg 06:20:16 -56.7 Dark Down 29.9 80.3 Low 06:05:16 - 06:35:16 7027
Yakima 06:20:16 -57.0 Dark Down 29.8 80.0 Low 06:05:16 - 06:35:16 6982
Toppenish/White Swan 06:20:16 -57.2 Dark Down 29.9 80.0 Low 06:05:16 - 06:35:16 6957
Pasco 06:20:13 -58.0 Dark Down 30.7 80.8 Up 06:05:13 - 06:35:13 6933
PNWRO 06:20:11 -58.2 Dark Down 30.8 80.8 Up 06:05:11 - 06:35:11 6904
Goldendale 06:20:16 -57.3 Dark Down 29.5 79.4 Low 06:05:16 - 06:35:16 6900
The Dalles 06:20:17 -57.3 Dark Down 29.2 79.1 Low 06:05:17 - 06:35:17 6879
Maupin 06:20:17 -57.6 Dark Down 29.2 78.9 Low 06:05:17 - 06:35:17 6832
Sisters 06:20:17 -57.8 Dark Down 28.7 78.1 Low 06:05:17 - 06:35:17 6741
Redmond 06:20:17 -58.0 Dark Down 28.9 78.4 Low 06:05:17 - 06:35:17 6734
Bend 06:20:18 -58.1 Dark Down 28.8 78.2 Low 06:05:18 - 06:35:18 6712
Oregon Observatory 06:20:17 -58.1 Dark Down 28.7 78.0 Low 06:05:17 - 06:35:17 6695
La Pine/Gilchrist 06:20:18 -58.2 Dark Down 28.6 77.9 Low 06:05:18 - 06:35:18 6673
North Lake 06:20:16 -58.8 Dark Down 28.9 78.0 Low 06:05:16 - 06:35:16 6620
Paisley 06:20:15 -59.3 Dark Down 29.1 77.9 Low 06:05:15 - 06:35:15 6556
Chiloquin 06:20:18 -58.6 Dark Down 28.1 77.1 Low 06:05:18 - 06:35:18 6556
Klamath Falls 06:20:18 -58.8 Dark Down 28.1 76.9 Low 06:05:18 - 06:35:18 6518
Lakeview 06:20:12 -59.7 Dark Down 29.1 77.7 Low 06:05:12 - 06:35:12 6499
Cedarville 06:20:14 -60.2 Dark Down 29.1 77.5 Low 06:05:14 - 06:35:14 6426
Fall River/Burney 06:20:16 -59.6 Dark Down 28.1 76.5 Low 06:05:16 - 06:35:16 6386
Susanville 06:20:14 -60.4 Dark Down 28.5 76.6 Low 06:05:14 - 06:35:14 6310
Greenville 06:20:14 -60.4 Dark Down 28.2 76.3 Low 06:05:14 - 06:35:14 6283
Gimple 06:20:15 -60.4 Dark Down 28.3 76.4 Low 06:05:15 - 06:35:15 6283
Dunrhomin 06:19:32 -69.1 Dark Down 40.0 85.2 Up 06:04:32 - 06:34:32 6274
Quincy 06:20:14 -60.5 Dark Down 28.1 76.2 Low 06:05:14 - 06:35:14 6262
Portola 06:20:13 -60.9 Dark Down 28.5 76.4 Low 06:05:13 - 06:35:13 6243
Reno 06:20:12 -61.4 Dark Down 28.9 76.6 Low 06:05:12 - 06:35:12 6208
Carson City 06:20:12 -61.6 Dark Down 28.8 76.4 Low 06:05:12 - 06:35:12 6169
Yerington 06:20:10 -62.1 Dark Down 29.3 76.6 Low 06:05:10 - 06:35:10 6143
Gardnerville 06:20:11 -61.8 Dark Down 28.8 76.3 Low 06:05:11 - 06:35:11 6143
Hawthorne 06:20:09 -62.7 Dark Down 29.5 76.7 Low 06:05:09 - 06:35:09 6089
Lee Vining 06:20:08 -62.7 Dark Down 29.0 76.1 Low 06:05:08 - 06:35:08 6032
Tonopah 06:20:02 -63.9 Dark Down 30.5 77.1 Up 06:05:02 - 06:35:02 6028
Bishop 06:20:07 -63.4 Dark Down 29.4 76.1 Low 06:05:07 - 06:35:07 5963
Beatty 06:20:00 -64.8 Dark Down 30.6 76.7 Up 06:05:00 - 06:35:00 5902
Indian Springs 06:19:57 -65.7 Dark Down 31.3 77.0 Up 06:04:57 - 06:34:57 5861
Henderson 06:19:54 -66.4 Dark Down 31.8 77.0 Up 06:04:54 - 06:34:54 5802
CPSLO 06:20:09 -62.7 Dark Down 27.2 74.0 Low 06:05:09 - 06:35:09 5765
Patrick 06:19:52 -67.5 Dark Down 32.5 77.2 Up 06:04:52 - 06:34:52 5731
Kingman/Dolan Springs 06:19:51 -67.5 Dark Down 32.3 76.9 Up 06:04:51 - 06:34:51 5708
Laughlin/Bullhead City 06:19:54 -67.2 Dark Down 31.9 76.7 Up 06:04:54 - 06:34:54 5708
Mohave Valley 06:19:51 -67.3 Dark Down 31.8 76.5 Up 06:04:51 - 06:34:51 5679
Lake Havasu City 06:19:52 -67.7 Dark Down 31.9 76.4 Up 06:04:52 - 06:34:52 5636
Wildwood 06:20:02 -64.7 Dark Down 28.4 74.3 Low 06:05:02 - 06:35:02 5618
Parker 06:19:52 -67.8 Dark Down 31.9 76.2 Up 06:04:52 - 06:34:52 5599
Idyllwild 06:19:56 -66.2 Dark Down 29.8 74.9 Low 06:04:56 - 06:34:56 5567
George/Scottsdale 06:19:44 -69.8 Dark Down 33.7 77.0 Up 06:04:44 - 06:34:44 5550
Blythe 06:19:50 -67.9 Dark Down 31.5 75.7 Up 06:04:50 - 06:34:50 5544
Calipatria 06:19:54 -67.4 Dark Down 30.6 75.1 Up 06:04:54 - 06:34:54 5497
Yuma 06:19:49 -68.2 Dark Down 31.2 75.2 Up 06:04:49 - 06:34:49 5448

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 11BR163, (2024/01/10 06:17UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:22.0 +11:58:02  1.3 16.82 123
68Del Leo      11:14:06.7 +20:31:23  2.6 11.55 112
40 LMi         10:43:01.7 +26:19:30  5.6  2.36 121
PPM 100477     10:34:50.3 +27:57:40  7.6  0.33 123
PPM 100455     10:33:17.0 +27:46:29  9.4  0.25 123
PPM 100468     10:34:05.3 +27:28:23 11.9  0.18 123
11BR163        10:34:16.2 +27:39:04 15.8       123
Positions are for J2000

Event circumstances last updated at 2021/04/14 23:56:43 UT

Marc W. Buie, Southwest Research Institute

RECON