RECON: TNO occultation with 10VR11

Event between 10VR11 and star GA1160:01838294 with event index number of 2108305

Geocentric closest approach at 2028/01/13 05:41:53 UTC

J2000 position of star is 06:02:14.0 +26:07:32
Equinox of date position of star is 06:03:37.5 +26:07:26
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 37 degrees from the moon. Moon is 98% illuminated.
TNO apparent brightness V=21.2

[RECON map]
TNO is 36.1 AU from the Sun and 35.2 AU from the Earth.
The TNO is moving 23.7 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 338 seconds.
The 1-sigma cross-track error in the shadow position is 5264 km.
The sky-plane scale is 25497.0 km/arcsec.

The TNO has an absolute magnitude Hv=5.6
Diameter=461.3 km assuming a 5% albedo -- 19.4 sec chord
Diameter=188.3 km assuming a 30% albedo -- 7.9 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 10VR11, (2028/01/13 05:42UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:41.4 +07:24:36  0.4 18.79  41
Alnath         05:28:04.0 +28:37:43  1.6  8.35  45
139 Tau        05:59:44.1 +25:57:17  4.7  0.97  38
PPM 095283     06:04:37.0 +25:52:53  8.3  0.28  37
PPM 095276     06:04:23.1 +26:10:06  9.9  0.10  37
10VR11         06:03:58.6 +26:07:24 15.4        37
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 2.7 sigma about the mid-time.
The median site spacing is 29.6 km RECON observability=1.0 and success probability=9.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 05:42:02 -54.9 Dark Up 64.0 182.6 Up 05:27:02 - 05:57:02 -3693
Kamloops 05:42:43 -49.1 Dark Up 63.5 153.1 Up 05:27:43 - 05:57:43 -3885
Kelowna 05:42:41 -50.0 Dark Up 64.5 154.1 Up 05:27:41 - 05:57:41 -3968
Peachland 05:42:42 -49.9 Dark Up 64.5 153.4 Up 05:27:42 - 05:57:42 -3979
Summerland 05:42:42 -50.1 Dark Up 64.7 153.4 Up 05:27:42 - 05:57:42 -3994
Penticton 05:42:42 -50.2 Dark Up 64.8 153.6 Up 05:27:42 - 05:57:42 -4001
Oliver 05:42:42 -50.3 Dark Up 65.1 153.2 Up 05:27:42 - 05:57:42 -4037
Anarchist Mountain Observatory 05:42:41 -50.5 Dark Up 65.3 153.5 Up 05:27:41 - 05:57:41 -4055
Tonasket 05:42:41 -50.7 Dark Up 65.5 153.0 Up 05:27:41 - 05:57:41 -4087
Victoria 05:42:53 -48.5 Dark Up 64.4 145.1 Up 05:27:53 - 05:57:53 -4101
Okanogan 05:42:42 -50.7 Dark Up 65.8 152.4 Up 05:27:42 - 05:57:42 -4122
Brewster 05:42:43 -50.8 Dark Up 66.0 151.7 Up 05:27:43 - 05:57:43 -4150
Manson/Chelan 05:42:44 -50.7 Dark Up 66.0 150.7 Up 05:27:44 - 05:57:44 -4171
Wenatchee 05:42:45 -50.8 Dark Up 66.4 149.8 Up 05:27:45 - 05:57:45 -4220
Ellensburg 05:42:46 -50.9 Dark Up 66.7 148.9 Up 05:27:46 - 05:57:46 -4263
Yakima 05:42:46 -51.0 Dark Up 67.0 148.4 Up 05:27:46 - 05:57:46 -4306
Toppenish/White Swan 05:42:45 -51.2 Dark Up 67.3 148.4 Up 05:27:45 - 05:57:45 -4328
PNWRO 05:42:41 -52.3 Dark Up 68.1 151.2 Up 05:27:41 - 05:57:41 -4367
Goldendale 05:42:47 -51.2 Dark Up 67.6 146.8 Up 05:27:47 - 05:57:47 -4386
The Dalles 05:42:48 -51.1 Dark Up 67.6 145.8 Up 05:27:48 - 05:57:48 -4410
Maupin 05:42:48 -51.3 Dark Up 68.0 145.4 Up 05:27:48 - 05:57:48 -4454
Sisters 05:42:50 -51.4 Dark Up 68.5 143.1 Up 05:27:50 - 05:57:50 -4546
Bend 05:42:48 -51.6 Dark Up 68.8 143.3 Up 05:27:48 - 05:57:48 -4572
Oregon Observatory 05:42:49 -51.6 Dark Up 68.9 142.7 Up 05:27:49 - 05:57:49 -4590
North Lake 05:42:48 -52.2 Dark Up 69.6 142.9 Up 05:27:48 - 05:57:48 -4658
Chiloquin 05:42:51 -51.9 Dark Up 69.7 139.6 Up 05:27:51 - 05:57:51 -4729
Klamath Falls 05:42:51 -52.0 Dark Up 70.0 139.2 Up 05:27:51 - 05:57:51 -4766
Lakeview 05:42:46 -53.0 Dark Up 70.7 142.4 Up 05:27:46 - 05:57:46 -4772
Cedarville 05:42:46 -53.4 Dark Up 71.3 141.6 Up 05:27:46 - 05:57:46 -4842
Fall River/Burney 05:42:50 -52.7 Dark Up 71.1 137.8 Up 05:27:50 - 05:57:50 -4893
Dunrhomin 05:41:54 -63.7 Dark Up 75.8 187.3 Up 05:26:54 - 05:56:54 -4912
CU-SBO 05:41:54 -63.8 Dark Up 76.0 187.1 Up 05:26:54 - 05:56:54 -4940
Susanville 05:42:48 -53.4 Dark Up 72.0 138.3 Up 05:27:48 - 05:57:48 -4962
Greenville 05:42:48 -53.3 Dark Up 72.0 137.0 Up 05:27:48 - 05:57:48 -4991
Gimple 05:42:49 -53.4 Dark Up 72.1 137.2 Up 05:27:49 - 05:57:49 -4992
Quincy 05:42:49 -53.4 Dark Up 72.2 136.6 Up 05:27:49 - 05:57:49 -5013
Portola 05:42:47 -53.8 Dark Up 72.5 137.5 Up 05:27:47 - 05:57:47 -5027
Reno 05:42:45 -54.3 Dark Up 73.0 138.5 Up 05:27:45 - 05:57:45 -5056
Carson City 05:42:45 -54.5 Dark Up 73.3 137.8 Up 05:27:45 - 05:57:45 -5095
Yerington 05:42:44 -55.0 Dark Up 73.8 139.0 Up 05:27:44 - 05:57:44 -5116
Gardnerville 05:42:45 -54.6 Dark Up 73.5 137.3 Up 05:27:45 - 05:57:45 -5122
Hawthorne 05:42:41 -55.5 Dark Up 74.4 139.3 Up 05:27:41 - 05:57:41 -5166
Tonopah 05:42:36 -56.7 Dark Up 75.4 142.2 Up 05:27:36 - 05:57:36 -5216
Lee Vining 05:42:43 -55.3 Dark Up 74.6 136.6 Up 05:27:43 - 05:57:43 -5228
Bishop 05:42:40 -56.1 Dark Up 75.4 137.1 Up 05:27:40 - 05:57:40 -5293
Beatty 05:42:35 -57.4 Dark Up 76.6 140.7 Up 05:27:35 - 05:57:35 -5341
Indian Springs 05:42:31 -58.4 Dark Up 77.4 143.4 Up 05:27:31 - 05:57:31 -5374
Henderson 05:42:28 -59.0 Dark Up 78.1 144.4 Up 05:27:28 - 05:57:28 -5431
Patrick 05:42:24 -60.1 Dark Up 79.1 146.9 Up 05:27:24 - 05:57:24 -5495
Kingman/Dolan Springs 05:42:25 -60.0 Dark Up 79.2 145.5 Up 05:27:25 - 05:57:25 -5521
Laughlin/Bullhead City 05:42:26 -59.6 Dark Up 79.0 143.4 Up 05:27:26 - 05:57:26 -5525
Mohave Valley 05:42:26 -59.7 Dark Up 79.2 142.5 Up 05:27:26 - 05:57:26 -5555
Lake Havasu City 05:42:26 -60.0 Dark Up 79.7 142.2 Up 05:27:26 - 05:57:26 -5598
Parker 05:42:25 -60.2 Dark Up 80.0 141.1 Up 05:27:25 - 05:57:25 -5636
Wildwood 05:42:41 -56.8 Dark Up 77.4 126.4 Up 05:27:41 - 05:57:41 -5651
George/Scottsdale 05:42:16 -62.2 Dark Up 81.4 151.1 Up 05:27:16 - 05:57:16 -5672
Idyllwild 05:42:34 -58.4 Dark Up 78.9 130.7 Up 05:27:34 - 05:57:34 -5688
Calipatria 05:42:30 -59.5 Dark Up 80.0 132.3 Up 05:27:30 - 05:57:30 -5753
Yuma 05:42:26 -60.3 Dark Up 80.8 133.9 Up 05:27:26 - 05:57:26 -5797

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 10VR11, (2028/01/13 05:42UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 18.79  41
Alnath         05:26:17.6 +28:36:23  1.6  8.35  45
139 Tau        05:57:59.6 +25:57:14  4.7  0.97  38
PPM 095283     06:02:52.6 +25:53:02  8.3  0.28  37
PPM 095276     06:02:38.5 +26:10:15  9.9  0.10  37
10VR11         06:02:14.0 +26:07:32 15.4        37
Positions are for J2000

Event circumstances last updated at 2022/05/20 23:08:14 UT

Marc W. Buie, Southwest Research Institute

RECON