RECON: TNO occultation with 13RD124

Event between 13RD124 and star GA0920:17949596 with event index number of 2070716

Geocentric closest approach at 2023/11/28 04:49:39 UTC

J2000 position of star is 22:03:28.4 +03:09:54
Equinox of date position of star is 22:04:34.7 +03:16:16
Stellar brightness G=15.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 100 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 40.5 AU from the Sun and 40.5 AU from the Earth.
The TNO is moving 9.7 km/sec on the sky relative to the star, or, 1.2 arcsec/hr.
The 1-sigma error in the time of the event is 599 seconds.
The 1-sigma cross-track error in the shadow position is 4080 km.
The sky-plane scale is 29401.8 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=236.6 km assuming a 5% albedo -- 27.9 sec chord
Diameter=96.6 km assuming a 30% albedo -- 11.4 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 13RD124, (2023/11/28 04:48UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:57.9 -29:29:42  1.2 35.26 103
Markab         23:05:57.2 +15:20:04  2.5 19.31  81
26The Peg      22:11:24.3 +06:18:59  3.5  3.47  97
PPM 172665     22:07:51.8 +02:33:24  6.6  1.07 100
PPM 172587     22:04:20.4 +03:17:55  9.1  0.09 100
13RD124        22:04:41.1 +03:16:53 15.1       100
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 1.5 sigma about the mid-time.
The median site spacing is 8.1 km RECON observability=1.0 and success probability=3.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Dunrhomin 04:52:11 -58.9 Dark Up 21.8 254.9 Low 04:37:11 - 05:07:11 5518
Clarence Fulton 04:49:36 -45.1 Dark Up 27.4 238.2 Low 04:34:36 - 05:04:36 5451
Kelowna 04:49:38 -45.2 Dark Up 27.7 238.2 Low 04:34:38 - 05:04:38 5436
Peachland 04:49:38 -45.0 Dark Up 27.9 238.0 Low 04:34:38 - 05:04:38 5425
Penticton 04:49:41 -45.3 Dark Up 27.9 238.3 Low 04:34:41 - 05:04:41 5424
Summerland 04:49:40 -45.2 Dark Up 28.0 238.2 Low 04:34:40 - 05:04:40 5423
Anarchist Mountain Observatory 04:49:48 -45.6 Dark Up 28.1 238.7 Low 04:34:48 - 05:04:48 5416
Oliver 04:49:44 -45.4 Dark Up 28.1 238.5 Low 04:34:44 - 05:04:44 5414
Tonasket 04:49:51 -45.7 Dark Up 28.3 238.8 Low 04:34:51 - 05:04:51 5404
Okanogan 04:49:52 -45.7 Dark Up 28.5 238.9 Low 04:34:52 - 05:04:52 5390
Brewster 04:49:56 -45.7 Dark Up 28.8 238.8 Low 04:34:56 - 05:04:56 5376
Manson/Chelan 04:49:56 -45.5 Dark Up 29.1 238.6 Low 04:34:56 - 05:04:56 5358
Wenatchee 04:49:59 -45.6 Dark Up 29.4 238.6 Low 04:34:59 - 05:04:59 5338
Pasco 04:50:17 -46.8 Dark Up 29.3 240.4 Low 04:35:17 - 05:05:17 5337
PNWRO 04:50:18 -47.1 Dark Up 29.3 240.7 Low 04:35:18 - 05:05:18 5336
Ellensburg 04:50:01 -45.6 Dark Up 29.8 238.6 Low 04:35:01 - 05:05:01 5318
Yakima 04:50:04 -45.8 Dark Up 30.0 238.8 Low 04:35:04 - 05:05:04 5304
Toppenish/White Swan 04:50:09 -45.9 Dark Up 30.0 239.1 Low 04:35:09 - 05:05:09 5302
Victoria 04:49:40 -43.2 Dark Up 30.6 235.1 Up 04:34:40 - 05:04:40 5278
Goldendale 04:50:12 -45.9 Dark Up 30.5 239.0 Up 04:35:12 - 05:05:12 5270
The Dalles 04:50:12 -45.7 Dark Up 30.9 238.8 Up 04:35:12 - 05:05:12 5250
Maupin 04:50:17 -45.9 Dark Up 31.0 239.1 Up 04:35:17 - 05:05:17 5238
Redmond 04:50:27 -46.1 Dark Up 31.5 239.5 Up 04:35:27 - 05:05:27 5203
Sisters 04:50:24 -45.8 Dark Up 31.7 239.2 Up 04:35:24 - 05:05:24 5190
Bend 04:50:26 -46.1 Dark Up 31.7 239.5 Up 04:35:26 - 05:05:26 5190
Oregon Observatory 04:50:28 -46.0 Dark Up 31.9 239.5 Up 04:35:28 - 05:05:28 5180
North Lake 04:50:36 -46.6 Dark Up 31.8 240.4 Up 04:35:36 - 05:05:36 5173
La Pine/Gilchrist 04:50:32 -46.1 Dark Up 32.0 239.6 Up 04:35:32 - 05:05:32 5170
Paisley 04:50:45 -47.0 Dark Up 31.8 241.0 Up 04:35:45 - 05:05:45 5163
Lakeview 04:50:50 -47.3 Dark Up 31.9 241.5 Up 04:35:50 - 05:05:50 5149
Cedarville 04:50:58 -47.7 Dark Up 32.1 242.1 Up 04:35:58 - 05:05:58 5128
Chiloquin 04:50:40 -46.1 Dark Up 32.8 239.9 Up 04:35:40 - 05:05:40 5114
Klamath Falls 04:50:45 -46.3 Dark Up 32.9 240.2 Up 04:35:45 - 05:05:45 5102
Tonopah 04:51:44 -50.8 Dark Up 31.4 246.7 Up 04:36:44 - 05:06:44 5078
Fall River/Burney 04:50:55 -46.9 Dark Up 33.2 241.2 Up 04:35:55 - 05:05:55 5066
Susanville 04:51:05 -47.6 Dark Up 32.9 242.3 Up 04:36:05 - 05:06:05 5065
Patrick 04:52:25 -54.2 Dark Up 29.8 250.8 Low 04:37:25 - 05:07:25 5064
Indian Springs 04:52:05 -52.4 Dark Up 30.8 248.8 Up 04:37:05 - 05:07:05 5060
Henderson 04:52:16 -53.1 Dark Up 30.4 249.6 Up 04:37:16 - 05:07:16 5057
Reno 04:51:18 -48.5 Dark Up 32.7 243.6 Up 04:36:18 - 05:06:18 5056
Yerington 04:51:26 -49.1 Dark Up 32.5 244.5 Up 04:36:26 - 05:06:26 5054
Hawthorne 04:51:32 -49.6 Dark Up 32.3 245.2 Up 04:36:32 - 05:06:32 5051
Kingman/Dolan Springs 04:52:26 -54.1 Dark Up 30.0 250.8 Low 04:37:26 - 05:07:26 5047
George/Scottsdale 04:52:42 -56.3 Dark Up 28.6 253.2 Low 04:37:42 - 05:07:42 5046
Portola 04:51:12 -47.9 Dark Up 33.1 242.8 Up 04:36:12 - 05:06:12 5045
Gimple 04:51:07 -47.5 Dark Up 33.2 242.3 Up 04:36:07 - 05:06:07 5045
Greenville 04:51:11 -47.5 Dark Up 33.2 242.2 Up 04:36:11 - 05:06:11 5043
Carson City 04:51:25 -48.6 Dark Up 32.8 243.8 Up 04:36:25 - 05:06:25 5041
Beatty 04:52:00 -51.5 Dark Up 31.5 247.7 Up 04:37:00 - 05:07:00 5040
Quincy 04:51:11 -47.5 Dark Up 33.3 242.3 Up 04:36:11 - 05:06:11 5034
Gardnerville 04:51:23 -48.7 Dark Up 32.9 244.0 Up 04:36:23 - 05:06:23 5031
Laughlin/Bullhead City 04:52:25 -53.7 Dark Up 30.4 250.4 Up 04:37:25 - 05:07:25 5029
Mohave Valley 04:52:28 -53.8 Dark Up 30.5 250.6 Up 04:37:28 - 05:07:28 5016
Lee Vining 04:51:37 -49.4 Dark Up 32.9 245.1 Up 04:36:37 - 05:06:37 5009
Bishop 04:51:45 -50.1 Dark Up 32.6 246.1 Up 04:36:45 - 05:06:45 5005
Lake Havasu City 04:52:34 -54.1 Dark Up 30.4 251.0 Up 04:37:34 - 05:07:34 5004
Parker 04:52:36 -54.2 Dark Up 30.5 251.2 Up 04:37:36 - 05:07:36 4987
Blythe 04:52:40 -54.0 Dark Up 30.9 251.3 Up 04:37:40 - 05:07:40 4951
Yuma 04:52:42 -54.2 Dark Up 31.2 251.8 Up 04:37:42 - 05:07:42 4902
Calipatria 04:52:43 -53.3 Dark Up 31.7 251.0 Up 04:37:43 - 05:07:43 4893
Idyllwild 04:52:29 -52.2 Dark Up 32.5 249.7 Up 04:37:29 - 05:07:29 4885
Wildwood 04:52:16 -50.6 Dark Up 33.9 248.0 Up 04:37:16 - 05:07:16 4836
CPSLO 04:51:54 -48.7 Dark Up 35.0 245.5 Up 04:36:54 - 05:06:54 4823

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 13RD124, (2023/11/28 04:48UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 35.26 103
Markab         23:04:45.8 +15:12:18  2.5 19.31  81
26The Peg      22:10:12.4 +06:11:53  3.5  3.47  97
PPM 172665     22:06:38.9 +02:26:22  6.6  1.07 100
PPM 172587     22:03:07.7 +03:10:56  9.1  0.09 100
13RD124        22:03:28.4 +03:09:54 15.1       100
Positions are for J2000

Event circumstances last updated at 2021/10/19 23:47:04 UT

Marc W. Buie, Southwest Research Institute

RECON