RECON: TNO occultation with 04UD10

Event between 04UD10 and star GA1120:00728953 with event index number of 1276431

Geocentric closest approach at 2023/11/15 10:15:34 UTC

J2000 position of star is 04:39:09.1 +23:09:14
Equinox of date position of star is 04:40:29.4 +23:11:46
Stellar brightness G=15.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 173 degrees from the moon. Moon is 5% illuminated.
TNO apparent brightness V=23.2

[RECON map]
TNO is 44.4 AU from the Sun and 43.5 AU from the Earth.
The TNO is moving 24.2 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 514 seconds.
The 1-sigma cross-track error in the shadow position is 2968 km.
The sky-plane scale is 31516.3 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=280.6 km assuming a 5% albedo -- 11.6 sec chord
Diameter=114.5 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 04UD10, (2023/11/15 10:16UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:17.6 +16:33:20  0.8  6.69 167
3Iot Aur       04:58:33.1 +33:12:06  2.7 10.75 174
PPM 093742     04:47:09.1 +23:40:12  6.1  1.58 174
PPM 093651     04:40:17.7 +23:11:43  8.3  0.07 173
04UD10         04:40:35.3 +23:11:58 15.1       173
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 1.8 sigma about the mid-time.
The median site spacing is 29.5 km RECON observability=1.0 and success probability=11.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:13:54 -37.8 Dark Down 52.1 232.5 Up 09:58:54 - 10:28:54 -3275
Kamloops 10:14:30 -46.4 Dark Down 59.2 213.2 Up 09:59:30 - 10:29:30 -3468
Kelowna 10:14:27 -46.4 Dark Down 59.6 215.4 Up 09:59:27 - 10:29:27 -3549
Peachland 10:14:29 -46.6 Dark Down 59.8 215.0 Up 09:59:29 - 10:29:29 -3560
Summerland 10:14:28 -46.6 Dark Down 59.9 215.3 Up 09:59:28 - 10:29:28 -3575
Penticton 10:14:27 -46.6 Dark Down 59.9 215.6 Up 09:59:27 - 10:29:27 -3582
Oliver 10:14:27 -46.8 Dark Down 60.2 215.9 Up 09:59:27 - 10:29:27 -3617
Anarchist Mountain Observatory 10:14:26 -46.8 Dark Down 60.2 216.4 Up 09:59:26 - 10:29:26 -3634
Tonasket 10:14:26 -47.0 Dark Down 60.5 216.6 Up 09:59:26 - 10:29:26 -3666
Victoria 10:14:38 -49.2 Dark Down 62.1 209.9 Up 09:59:38 - 10:29:38 -3683
Okanogan 10:14:26 -47.2 Dark Down 60.8 216.7 Up 09:59:26 - 10:29:26 -3700
Brewster 10:14:27 -47.5 Dark Down 61.1 216.7 Up 09:59:27 - 10:29:27 -3728
Manson/Chelan 10:14:28 -47.8 Dark Down 61.4 216.3 Up 09:59:28 - 10:29:28 -3749
Wenatchee 10:14:28 -48.1 Dark Down 61.9 216.5 Up 09:59:28 - 10:29:28 -3798
Ellensburg 10:14:29 -48.5 Dark Down 62.3 216.6 Up 09:59:29 - 10:29:29 -3840
Yakima 10:14:29 -48.7 Dark Down 62.6 217.0 Up 09:59:29 - 10:29:29 -3882
Toppenish/White Swan 10:14:28 -48.7 Dark Down 62.8 217.6 Up 09:59:28 - 10:29:28 -3904
PNWRO 10:14:24 -48.0 Dark Down 62.4 220.6 Up 09:59:24 - 10:29:24 -3941
Goldendale 10:14:29 -49.2 Dark Down 63.4 217.5 Up 09:59:29 - 10:29:29 -3961
The Dalles 10:14:30 -49.6 Dark Down 63.7 217.1 Up 09:59:30 - 10:29:30 -3984
Maupin 10:14:30 -49.7 Dark Down 64.0 217.8 Up 09:59:30 - 10:29:30 -4027
Sisters 10:14:31 -50.4 Dark Down 64.9 218.0 Up 09:59:31 - 10:29:31 -4119
Bend 10:14:30 -50.4 Dark Down 65.0 218.8 Up 09:59:30 - 10:29:30 -4144
Oregon Observatory 10:14:30 -50.6 Dark Down 65.2 218.8 Up 09:59:30 - 10:29:30 -4162
North Lake 10:14:28 -50.5 Dark Down 65.4 220.7 Up 09:59:28 - 10:29:28 -4229
Chiloquin 10:14:31 -51.4 Dark Down 66.4 219.9 Up 09:59:31 - 10:29:31 -4300
Klamath Falls 10:14:31 -51.5 Dark Down 66.6 220.5 Up 09:59:31 - 10:29:31 -4336
Lakeview 10:14:27 -50.6 Dark Down 65.9 223.3 Up 09:59:27 - 10:29:27 -4340
Cedarville 10:14:25 -50.8 Dark Down 66.3 224.7 Up 09:59:25 - 10:29:25 -4410
Fall River/Burney 10:14:29 -51.8 Dark Down 67.3 223.1 Up 09:59:29 - 10:29:29 -4461
Dunrhomin 10:13:37 -40.5 Dark Down 57.6 248.1 Up 09:58:37 - 10:28:37 -4472
CU-SBO 10:13:37 -40.6 Dark Down 57.8 248.3 Up 09:58:37 - 10:28:37 -4499
Susanville 10:14:26 -51.6 Dark Down 67.4 225.6 Up 09:59:26 - 10:29:26 -4528
Greenville 10:14:27 -51.9 Dark Down 67.7 225.5 Up 09:59:27 - 10:29:27 -4558
Gimple 10:14:27 -51.8 Dark Down 67.7 225.7 Up 09:59:27 - 10:29:27 -4558
Quincy 10:14:27 -52.0 Dark Down 67.8 225.9 Up 09:59:27 - 10:29:27 -4579
Portola 10:14:25 -51.7 Dark Down 67.7 227.0 Up 09:59:25 - 10:29:25 -4593
Reno 10:14:23 -51.3 Dark Down 67.5 228.7 Up 09:59:23 - 10:29:23 -4621
Carson City 10:14:23 -51.4 Dark Down 67.7 229.4 Up 09:59:23 - 10:29:23 -4659
Yerington 10:14:21 -51.1 Dark Down 67.5 230.9 Up 09:59:21 - 10:29:21 -4680
Gardnerville 10:14:23 -51.5 Dark Down 67.8 229.9 Up 09:59:23 - 10:29:23 -4685
Hawthorne 10:14:19 -50.8 Dark Down 67.4 232.7 Up 09:59:19 - 10:29:19 -4729
Tonopah 10:14:14 -50.0 Dark Down 66.8 236.0 Up 09:59:14 - 10:29:14 -4776
Lee Vining 10:14:20 -51.4 Dark Down 68.1 233.0 Up 09:59:20 - 10:29:20 -4790
Bishop 10:14:18 -51.0 Dark Down 68.0 235.4 Up 09:59:18 - 10:29:18 -4854
Beatty 10:14:12 -50.0 Dark Down 67.1 239.0 Up 09:59:12 - 10:29:12 -4900
Indian Springs 10:14:08 -49.2 Dark Down 66.5 241.3 Up 09:59:08 - 10:29:08 -4933
Henderson 10:14:05 -48.8 Dark Down 66.3 243.4 Up 09:59:05 - 10:29:05 -4988
Patrick 10:14:01 -48.1 Dark Down 65.8 246.2 Up 09:59:01 - 10:29:01 -5052
Kingman/Dolan Springs 10:14:02 -48.3 Dark Down 66.0 246.4 Up 09:59:02 - 10:29:02 -5077
Laughlin/Bullhead City 10:14:03 -48.7 Dark Down 66.4 245.7 Up 09:59:03 - 10:29:03 -5081
Mohave Valley 10:14:03 -48.8 Dark Down 66.5 246.3 Up 09:59:03 - 10:29:03 -5111
Lake Havasu City 10:14:02 -48.6 Dark Down 66.5 247.5 Up 09:59:02 - 10:29:02 -5154
Parker 10:14:02 -48.7 Dark Down 66.6 248.3 Up 09:59:02 - 10:29:02 -5192
Wildwood 10:14:17 -52.1 Dark Down 69.8 242.3 Up 09:59:17 - 10:29:17 -5210
George/Scottsdale 10:13:53 -46.8 Dark Down 64.8 252.0 Up 09:58:53 - 10:28:53 -5226
Idyllwild 10:14:10 -50.7 Dark Down 68.6 246.0 Up 09:59:10 - 10:29:10 -5245
Calipatria 10:14:06 -49.9 Dark Down 67.9 249.0 Up 09:59:06 - 10:29:06 -5308
Yuma 10:14:02 -49.2 Dark Down 67.3 251.1 Up 09:59:02 - 10:29:02 -5352

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 04UD10, (2023/11/15 10:16UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8  6.69 167
3Iot Aur       04:56:59.6 +33:09:58  2.7 10.75 174
PPM 093742     04:45:42.5 +23:37:41  6.1  1.58 174
PPM 093651     04:38:51.5 +23:08:59  8.3  0.07 173
04UD10         04:39:09.1 +23:09:14 15.1       173
Positions are for J2000

Event circumstances last updated at 2022/03/23 00:38:01 UT

Marc W. Buie, Southwest Research Institute

RECON