RECON: TNO occultation with 03UN284

Event between 03UN284 and star GA1140:00979899 with event index number of 1073151

Geocentric closest approach at 2021/11/26 12:07:14 UTC

J2000 position of star is 05:06:32.5 +24:57:54
Equinox of date position of star is 05:07:46.8 +24:59:26
Stellar brightness G=15.2, use SENSEUP=128
Star is 65 degrees from the moon. Moon is 60% illuminated.
TNO apparent brightness V=26.3

[RECON map]
TNO is 42.5 AU from the Sun and 41.6 AU from the Earth.
The TNO is moving 24.8 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 391 seconds.
The 1-sigma cross-track error in the shadow position is 2478 km.
The sky-plane scale is 30139.9 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=197.7 km assuming a 5% albedo -- 2.4 sec chord
Diameter=80.7 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 03UN284, (2021/11/26 12:07UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:10.8 +16:33:06  0.8 11.07  73
Alnath         05:27:40.7 +28:37:26  1.6  5.72  60
103 Tau        05:09:26.9 +24:17:31  5.3  0.79  64
PPM 094048     05:06:31.9 +23:49:39  8.3  1.21  65
PPM 094077     05:09:01.3 +24:51:10  9.6  0.29  64
PPM 094062     05:07:31.1 +25:07:04 10.2  0.15  65
03UN284        05:07:53.2 +24:59:34 15.2        64
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 2.3 sigma about the mid-time.
The median site spacing is 20.3 km RECON observability=1.0 and success probability=4.9%
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 12:04:56 -31.8 Dark Up 43.6 256.5 Up 11:49:56 - 12:19:56 6537
Kelowna 12:04:56 -32.0 Dark Up 43.8 256.7 Up 11:49:56 - 12:19:56 6498
Peachland 12:04:56 -32.2 Dark Up 44.0 256.5 Up 11:49:56 - 12:19:56 6482
Summerland 12:04:56 -32.1 Dark Up 44.0 256.7 Up 11:49:56 - 12:19:56 6470
Penticton 12:04:56 -32.0 Dark Up 43.9 256.9 Up 11:49:56 - 12:19:56 6466
Oliver 12:04:54 -32.1 Dark Up 44.0 257.2 Up 11:49:54 - 12:19:54 6433
Anarchist Mountain Observatory 12:04:54 -32.0 Dark Up 43.9 257.6 Up 11:49:54 - 12:19:54 6421
Tonasket 12:04:54 -32.0 Dark Up 44.0 257.8 Up 11:49:54 - 12:19:54 6391
Okanogan 12:04:52 -32.2 Dark Up 44.2 258.0 Up 11:49:52 - 12:19:52 6356
Brewster 12:04:52 -32.3 Dark Up 44.4 258.1 Up 11:49:52 - 12:19:52 6326
Manson/Chelan 12:04:53 -32.6 Dark Up 44.7 257.9 Up 11:49:53 - 12:19:53 6299
Victoria 12:05:01 -34.6 Dark Up 46.6 254.4 Up 11:50:01 - 12:20:01 6296
Entiat 12:04:52 -32.6 Dark Up 44.8 258.1 Up 11:49:52 - 12:19:52 6277
Wenatchee 12:04:52 -32.7 Dark Up 44.9 258.2 Up 11:49:52 - 12:19:52 6251
Ellensburg 12:04:52 -32.9 Dark Up 45.1 258.5 Up 11:49:52 - 12:19:52 6207
Yakima 12:04:50 -32.9 Dark Up 45.2 258.8 Up 11:49:50 - 12:19:50 6167
Pasco 12:04:47 -32.0 Dark Up 44.3 260.4 Up 11:49:47 - 12:19:47 6165
Toppenish/White Swan 12:04:50 -32.8 Dark Up 45.2 259.2 Up 11:49:50 - 12:19:50 6150
PNWRO 12:04:46 -31.8 Dark Up 44.2 260.8 Up 11:49:46 - 12:19:46 6147
Goldendale 12:04:50 -33.2 Dark Up 45.6 259.4 Up 11:49:50 - 12:19:50 6088
The Dalles 12:04:50 -33.4 Dark Up 45.8 259.3 Up 11:49:50 - 12:19:50 6059
Maupin 12:04:49 -33.4 Dark Up 45.9 259.8 Up 11:49:49 - 12:19:49 6020
Niwot 12:04:07 -21.5 Dark Up 34.5 275.2 Up 11:49:07 - 12:19:07 5938
Redmond 12:04:47 -33.5 Dark Up 46.1 260.6 Up 11:49:47 - 12:19:47 5930
SwRI 12:04:07 -21.6 Dark Up 34.6 275.2 Up 11:49:07 - 12:19:07 5925
Sisters 12:04:48 -33.8 Dark Up 46.4 260.3 Up 11:49:48 - 12:19:48 5924
Bend 12:04:47 -33.6 Dark Up 46.2 260.8 Up 11:49:47 - 12:19:47 5906
Oregon Observatory 12:04:47 -33.7 Dark Up 46.3 260.8 Up 11:49:47 - 12:19:47 5887
La Pine/Gilchrist 12:04:47 -33.8 Dark Up 46.4 261.0 Up 11:49:47 - 12:19:47 5865
North Lake 12:04:45 -33.3 Dark Up 46.0 261.9 Up 11:49:45 - 12:19:45 5835
Paisley 12:04:43 -33.1 Dark Up 45.9 262.8 Up 11:49:43 - 12:19:43 5789
Lakeview 12:04:41 -33.0 Dark Up 45.8 263.4 Up 11:49:41 - 12:19:41 5743
Klamath Falls 12:04:44 -34.0 Dark Up 46.8 262.3 Up 11:49:44 - 12:19:44 5715
Cedarville 12:04:39 -32.9 Dark Up 45.7 264.2 Up 11:49:39 - 12:19:39 5682
Fall River/Burney 12:04:41 -33.8 Dark Up 46.7 263.8 Up 11:49:41 - 12:19:41 5606
Susanville 12:04:38 -33.2 Dark Up 46.2 265.0 Up 11:49:38 - 12:19:38 5559
Gimple 12:04:38 -33.4 Dark Up 46.4 265.1 Up 11:49:38 - 12:19:38 5526
Greenville 12:04:39 -33.4 Dark Up 46.5 265.1 Up 11:49:39 - 12:19:39 5525
Quincy 12:04:38 -33.4 Dark Up 46.5 265.3 Up 11:49:38 - 12:19:38 5504
Portola 12:04:37 -33.1 Dark Up 46.1 265.8 Up 11:49:37 - 12:19:37 5503
Reno 12:04:34 -32.6 Dark Up 45.6 266.5 Up 11:49:34 - 12:19:34 5491
Carson City 12:04:34 -32.5 Dark Up 45.6 266.9 Up 11:49:34 - 12:19:34 5456
Yerington 12:04:32 -32.1 Dark Up 45.2 267.5 Up 11:49:32 - 12:19:32 5451
Gardnerville 12:04:33 -32.5 Dark Up 45.6 267.1 Up 11:49:33 - 12:19:33 5432
Hawthorne 12:04:30 -31.6 Dark Up 44.8 268.3 Up 11:49:30 - 12:19:30 5417
Tonopah 12:04:26 -30.5 Dark Up 43.7 269.6 Up 11:49:26 - 12:19:26 5405
Lee Vining 12:04:30 -32.0 Dark Up 45.2 268.5 Up 11:49:30 - 12:19:30 5348
Bishop 12:04:28 -31.4 Dark Up 44.6 269.6 Up 11:49:28 - 12:19:28 5305
Beatty 12:04:23 -30.1 Dark Up 43.3 271.0 Up 11:49:23 - 12:19:23 5300
Indian Springs 12:04:20 -29.2 Dark Up 42.5 271.9 Up 11:49:20 - 12:19:20 5295
Henderson 12:04:17 -28.6 Dark Up 41.9 272.8 Up 11:49:17 - 12:19:17 5260
Patrick 12:04:14 -27.6 Dark Up 41.0 273.9 Up 11:49:14 - 12:19:14 5227
DCO 12:04:12 -27.0 Dark Up 40.4 274.6 Up 11:49:12 - 12:19:12 5216
Searchlight/Boulder City 12:04:16 -28.5 Dark Up 41.8 273.3 Up 11:49:16 - 12:19:16 5203
Kingman/Dolan Springs 12:04:14 -27.7 Dark Up 41.1 274.0 Up 11:49:14 - 12:19:14 5199
Laughlin/Bullhead City 12:04:15 -28.2 Dark Up 41.5 273.8 Up 11:49:15 - 12:19:15 5182
Mohave Valley 12:04:14 -28.1 Dark Up 41.5 274.0 Up 11:49:14 - 12:19:14 5155
Lake Havasu City 12:04:13 -27.9 Dark Up 41.3 274.5 Up 11:49:13 - 12:19:13 5121
George/Scottsdale 12:04:06 -25.8 Dark Up 39.2 276.4 Up 11:49:06 - 12:19:06 5113
Parker 12:04:12 -27.8 Dark Up 41.2 274.8 Up 11:49:12 - 12:19:12 5086
CPSLO 12:04:29 -33.1 Dark Up 46.4 270.3 Up 11:49:29 - 12:19:29 5038
Blythe 12:04:12 -28.0 Dark Up 41.4 275.1 Up 11:49:12 - 12:19:12 5024
Idyllwild 12:04:17 -29.7 Dark Up 43.2 274.0 Up 11:49:17 - 12:19:17 4978
Wildwood 12:04:22 -31.3 Dark Up 44.7 272.7 Up 11:49:22 - 12:19:22 4965
Calipatria 12:04:13 -28.7 Dark Up 42.2 275.1 Up 11:49:13 - 12:19:13 4948
Yuma 12:04:11 -27.9 Dark Up 41.4 275.9 Up 11:49:11 - 12:19:11 4928

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 03UN284, (2021/11/26 12:07UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 11.07  73
Alnath         05:26:17.5 +28:36:23  1.6  5.72  60
103 Tau        05:08:06.6 +24:15:54  5.3  0.79  64
PPM 094048     05:05:12.0 +23:47:56  8.3  1.21  65
PPM 094077     05:07:40.7 +24:49:32  9.6  0.29  64
PPM 094062     05:06:10.4 +25:05:23 10.2  0.15  65
03UN284        05:06:32.5 +24:57:54 15.2        65
Positions are for J2000

Event circumstances last updated at 2020/03/08 22:56:34 UT

Marc W. Buie, Southwest Research Institute

RECON