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 06:17:14 UTC

J2000 position of star is 10:34:16.2 +27:39:04
Equinox of date position of star is 10:35:23.5 +27:32:46
Stellar brightness G=15.8, use SENSEUP=128
Star is 123 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=26.0

[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 237 seconds.
The 1-sigma cross-track error in the shadow position is 3296 km.
The sky-plane scale is 27901.1 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=364.8 km assuming a 5% albedo -- 3.2 sec chord
Diameter=148.9 km assuming a 30% albedo -- 1.3 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 +20:23:31  2.6 11.55 112
40 LMi         10:44:20.8 +26:11:55  5.6  2.36 121
PPM 100477     10:36:10.2 +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 3.8 sigma about the mid-time.
The median site spacing is 23.4 km RECON observability=1.0 and success probability=7.3%
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 06:22:03 -55.4 Dark Down 31.4 83.4 Up 06:07:03 - 06:37:03 6934
Kelowna 06:22:01 -55.6 Dark Down 31.3 83.0 Up 06:07:01 - 06:37:01 6892
Peachland 06:22:04 -55.5 Dark Down 31.1 82.7 Up 06:07:04 - 06:37:04 6882
Summerland 06:22:04 -55.7 Dark Down 31.1 82.7 Up 06:07:04 - 06:37:04 6864
Penticton 06:22:04 -55.8 Dark Down 31.2 82.8 Up 06:07:04 - 06:37:04 6856
Oliver 06:22:03 -56.0 Dark Down 31.2 82.5 Up 06:07:03 - 06:37:03 6817
Anarchist Mountain Observatory 06:22:04 -56.2 Dark Down 31.3 82.6 Up 06:07:04 - 06:37:04 6797
Victoria 06:22:11 -54.5 Dark Down 28.6 79.5 Low 06:07:11 - 06:37:11 6780
Tonasket 06:22:03 -56.4 Dark Down 31.2 82.3 Up 06:07:03 - 06:37:03 6763
Okanogan 06:22:01 -56.6 Dark Down 31.0 82.0 Up 06:07:01 - 06:37:01 6728
Brewster 06:22:04 -56.6 Dark Down 30.9 81.7 Up 06:07:04 - 06:37:04 6699
Manson/Chelan 06:22:03 -56.6 Dark Down 30.6 81.4 Up 06:07:03 - 06:37:03 6679
Entiat 06:22:01 -56.7 Dark Down 30.5 81.2 Up 06:07:01 - 06:37:01 6655
Wenatchee 06:22:05 -56.8 Dark Down 30.4 81.0 Up 06:07:05 - 06:37:05 6628
Ellensburg 06:22:03 -57.0 Dark Down 30.2 80.6 Up 06:07:03 - 06:37:03 6584
Yakima 06:22:04 -57.2 Dark Down 30.1 80.3 Up 06:07:04 - 06:37:04 6539
Toppenish/White Swan 06:22:05 -57.5 Dark Down 30.2 80.3 Up 06:07:05 - 06:37:05 6514
Pasco 06:22:02 -58.2 Dark Down 31.0 81.1 Up 06:07:02 - 06:37:02 6491
PNWRO 06:22:01 -58.5 Dark Down 31.1 81.1 Up 06:07:01 - 06:37:01 6462
Goldendale 06:22:05 -57.6 Dark Down 29.8 79.7 Low 06:07:05 - 06:37:05 6457
The Dalles 06:22:07 -57.5 Dark Down 29.5 79.4 Low 06:07:07 - 06:37:07 6436
Maupin 06:22:06 -57.8 Dark Down 29.5 79.2 Low 06:07:06 - 06:37:06 6389
Sisters 06:22:07 -58.1 Dark Down 29.0 78.4 Low 06:07:07 - 06:37:07 6297
Redmond 06:22:05 -58.3 Dark Down 29.3 78.7 Low 06:07:05 - 06:37:05 6291
Bend 06:22:06 -58.3 Dark Down 29.1 78.5 Low 06:07:06 - 06:37:06 6269
Oregon Observatory 06:22:06 -58.4 Dark Down 29.0 78.3 Low 06:07:06 - 06:37:06 6251
La Pine/Gilchrist 06:22:07 -58.4 Dark Down 28.9 78.1 Low 06:07:07 - 06:37:07 6230
North Lake 06:22:04 -59.0 Dark Down 29.2 78.3 Low 06:07:04 - 06:37:04 6176
Paisley 06:22:05 -59.6 Dark Down 29.4 78.2 Low 06:07:05 - 06:37:05 6113
Klamath Falls 06:22:07 -59.1 Dark Down 28.4 77.2 Low 06:07:07 - 06:37:07 6074
Lakeview 06:22:01 -60.0 Dark Down 29.4 78.0 Low 06:07:01 - 06:37:01 6056
Cedarville 06:22:03 -60.4 Dark Down 29.4 77.7 Low 06:07:03 - 06:37:03 5983
Fall River/Burney 06:22:03 -59.9 Dark Down 28.4 76.8 Low 06:07:03 - 06:37:03 5943
Susanville 06:22:03 -60.7 Dark Down 28.8 76.9 Low 06:07:03 - 06:37:03 5867
Greenville 06:22:03 -60.7 Dark Down 28.5 76.6 Low 06:07:03 - 06:37:03 5840
Gimple 06:22:01 -60.7 Dark Down 28.6 76.6 Low 06:07:01 - 06:37:01 5839
Niwot 06:21:12 -69.4 Dark Down 40.3 85.3 Up 06:06:12 - 06:36:12 5826
Quincy 06:22:03 -60.8 Dark Down 28.5 76.4 Low 06:07:03 - 06:37:03 5819
SwRI 06:21:12 -69.4 Dark Down 40.2 85.2 Up 06:06:12 - 06:36:12 5814
Portola 06:22:03 -61.2 Dark Down 28.8 76.6 Low 06:07:03 - 06:37:03 5800
Reno 06:21:59 -61.7 Dark Down 29.2 76.8 Low 06:06:59 - 06:36:59 5765
Carson City 06:21:58 -61.9 Dark Down 29.2 76.7 Low 06:06:58 - 06:36:58 5727
Yerington 06:21:56 -62.4 Dark Down 29.6 76.9 Low 06:06:56 - 06:36:56 5700
Gardnerville 06:21:58 -62.1 Dark Down 29.1 76.5 Low 06:06:58 - 06:36:58 5700
Hawthorne 06:21:58 -63.0 Dark Down 29.9 76.9 Low 06:06:58 - 06:36:58 5646
Lee Vining 06:21:57 -63.0 Dark Down 29.4 76.3 Low 06:06:57 - 06:36:57 5589
Tonopah 06:21:53 -64.2 Dark Down 30.9 77.4 Up 06:06:53 - 06:36:53 5587
Bishop 06:21:55 -63.7 Dark Down 29.8 76.4 Low 06:06:55 - 06:36:55 5520
Beatty 06:21:49 -65.1 Dark Down 30.9 76.9 Up 06:06:49 - 06:36:49 5460
Indian Springs 06:21:45 -66.0 Dark Down 31.7 77.2 Up 06:06:45 - 06:36:45 5421
Henderson 06:21:43 -66.7 Dark Down 32.1 77.2 Up 06:06:43 - 06:36:43 5361
CPSLO 06:21:57 -63.0 Dark Down 27.5 74.2 Low 06:06:57 - 06:36:57 5322
Searchlight/Boulder City 06:21:43 -67.1 Dark Down 32.0 76.9 Up 06:06:43 - 06:36:43 5300
Patrick 06:21:39 -67.8 Dark Down 32.9 77.4 Up 06:06:39 - 06:36:39 5292
Kingman/Dolan Springs 06:21:41 -67.8 Dark Down 32.7 77.1 Up 06:06:41 - 06:36:41 5268
Laughlin/Bullhead City 06:21:40 -67.5 Dark Down 32.2 76.9 Up 06:06:40 - 06:36:40 5268
DCO 06:21:39 -68.5 Dark Down 33.3 77.5 Up 06:06:39 - 06:36:39 5258
Mohave Valley 06:21:42 -67.6 Dark Down 32.2 76.7 Up 06:06:42 - 06:36:42 5239
Lake Havasu City 06:21:39 -68.0 Dark Down 32.3 76.6 Up 06:06:39 - 06:36:39 5196
Wildwood 06:21:52 -65.0 Dark Down 28.8 74.5 Low 06:06:52 - 06:36:52 5176
Parker 06:21:39 -68.2 Dark Down 32.2 76.4 Up 06:06:39 - 06:36:39 5159
George/Scottsdale 06:21:12 -70.1 Dark Down 34.0 77.1 Up 06:06:12 - 06:36:12 5126
Idyllwild 06:21:45 -66.6 Dark Down 30.2 75.1 Up 06:06:45 - 06:36:45 5125
Blythe 06:21:39 -68.2 Dark Down 31.9 75.9 Up 06:06:39 - 06:36:39 5104
Calipatria 06:21:42 -67.7 Dark Down 31.0 75.3 Up 06:06:42 - 06:36:42 5057
Yuma 06:21:36 -68.6 Dark Down 31.6 75.4 Up 06:06:36 - 06:36:36 5008

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     10:34:50.2 +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 2020/03/21 22:30:00 UT

Marc W. Buie, Southwest Research Institute

RECON