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 11:51:12 UTC

J2000 position of star is 05:06:32.5 +24:57:54
Equinox of date position of star is 05:07:45.7 +24:59:25
Stellar brightness G=15.2, use SENSEUP=128
Star is 65 degrees from the moon. Moon is 60% illuminated.
TNO apparent brightness V=23.7

[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 435 seconds.
The 1-sigma cross-track error in the shadow position is 2116 km.
The sky-plane scale is 30140.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.4
Diameter=197.7 km assuming a 5% albedo -- 8.0 sec chord
Diameter=80.7 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 03UN284, (2021/11/26 11:51UT)
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 2.1 sigma about the mid-time.
The median site spacing is 24.9 km RECON observability=1.0 and success probability=21.6%
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 11:49:03 -34.3 Dark Up 46.1 252.7 Up 11:34:03 - 12:04:03 664
Kelowna 11:49:03 -34.5 Dark Up 46.3 253.0 Up 11:34:03 - 12:04:03 625
Summerland 11:49:03 -34.7 Dark Up 46.5 253.0 Up 11:34:03 - 12:04:03 596
Penticton 11:49:02 -34.6 Dark Up 46.4 253.2 Up 11:34:02 - 12:04:02 592
Oliver 11:49:02 -34.6 Dark Up 46.5 253.6 Up 11:34:02 - 12:04:02 558
Anarchist Mountain Observatory 11:49:01 -34.5 Dark Up 46.5 253.9 Up 11:34:01 - 12:04:01 546
Tonasket 11:49:00 -34.6 Dark Up 46.6 254.2 Up 11:34:00 - 12:04:00 515
Okanogan 11:49:00 -34.8 Dark Up 46.8 254.4 Up 11:34:00 - 12:04:00 480
Brewster 11:49:00 -34.9 Dark Up 47.0 254.4 Up 11:34:00 - 12:04:00 451
Victoria 11:49:09 -37.2 Dark Up 49.1 250.5 Up 11:34:09 - 12:04:09 427
Manson/Chelan 11:49:00 -35.2 Dark Up 47.3 254.3 Up 11:34:00 - 12:04:00 424
Entiat 11:49:00 -35.3 Dark Up 47.4 254.5 Up 11:34:00 - 12:04:00 401
Wenatchee 11:49:00 -35.4 Dark Up 47.5 254.7 Up 11:34:00 - 12:04:00 375
Ellensburg 11:48:59 -35.6 Dark Up 47.8 254.9 Up 11:33:59 - 12:03:59 331
Yakima 11:48:58 -35.6 Dark Up 47.9 255.3 Up 11:33:58 - 12:03:58 291
Pasco 11:48:55 -34.7 Dark Up 47.0 257.0 Up 11:33:55 - 12:03:55 286
Toppenish/White Swan 11:48:58 -35.6 Dark Up 47.8 255.7 Up 11:33:58 - 12:03:58 273
PNWRO 11:48:54 -34.6 Dark Up 46.9 257.4 Up 11:33:54 - 12:03:54 266
Goldendale 11:48:58 -35.9 Dark Up 48.3 255.9 Up 11:33:58 - 12:03:58 211
The Dalles 11:48:58 -36.2 Dark Up 48.6 255.8 Up 11:33:58 - 12:03:58 182
Maupin 11:48:57 -36.2 Dark Up 48.6 256.4 Up 11:33:57 - 12:03:57 143
Redmond 11:48:55 -36.3 Dark Up 48.9 257.3 Up 11:33:55 - 12:03:55 52
Sisters 11:48:56 -36.6 Dark Up 49.1 256.9 Up 11:33:56 - 12:03:56 46
Bend 11:48:55 -36.4 Dark Up 49.0 257.4 Up 11:33:55 - 12:03:55 28
Niwot 11:48:13 -24.5 Dark Up 37.5 272.8 Up 11:33:13 - 12:03:13 25
SwRI 11:48:13 -24.6 Dark Up 37.6 272.8 Up 11:33:13 - 12:03:13 12
Oregon Observatory 11:48:55 -36.6 Dark Up 49.1 257.5 Up 11:33:55 - 12:03:55 8
La Pine/Gilchrist 11:48:55 -36.6 Dark Up 49.2 257.7 Up 11:33:55 - 12:03:55 -14
North Lake 11:48:53 -36.2 Dark Up 48.9 258.7 Up 11:33:53 - 12:03:53 -45
Paisley 11:48:51 -36.0 Dark Up 48.8 259.6 Up 11:33:51 - 12:03:51 -93
Lakeview 11:48:49 -35.9 Dark Up 48.7 260.3 Up 11:33:49 - 12:03:49 -140
Klamath Falls 11:48:53 -37.0 Dark Up 49.7 259.1 Up 11:33:53 - 12:03:53 -165
Cedarville 11:48:48 -35.8 Dark Up 48.7 261.2 Up 11:33:48 - 12:03:48 -203
Fall River/Burney 11:48:50 -36.8 Dark Up 49.7 260.7 Up 11:33:50 - 12:03:50 -277
Susanville 11:48:47 -36.2 Dark Up 49.2 262.1 Up 11:33:47 - 12:03:47 -326
Gimple 11:48:47 -36.4 Dark Up 49.4 262.2 Up 11:33:47 - 12:03:47 -358
Greenville 11:48:47 -36.5 Dark Up 49.5 262.1 Up 11:33:47 - 12:03:47 -360
Quincy 11:48:47 -36.5 Dark Up 49.5 262.4 Up 11:33:47 - 12:03:47 -380
Portola 11:48:45 -36.1 Dark Up 49.2 262.9 Up 11:33:45 - 12:03:45 -383
Reno 11:48:43 -35.6 Dark Up 48.7 263.7 Up 11:33:43 - 12:03:43 -396
Carson City 11:48:43 -35.6 Dark Up 48.7 264.1 Up 11:33:43 - 12:03:43 -433
Yerington 11:48:41 -35.1 Dark Up 48.2 264.8 Up 11:33:41 - 12:03:41 -439
Gardnerville 11:48:42 -35.6 Dark Up 48.7 264.4 Up 11:33:42 - 12:03:42 -456
Hawthorne 11:48:39 -34.7 Dark Up 47.9 265.6 Up 11:33:39 - 12:03:39 -474
Tonopah 11:48:35 -33.6 Dark Up 46.8 267.1 Up 11:33:35 - 12:03:35 -489
Lee Vining 11:48:39 -35.1 Dark Up 48.3 265.9 Up 11:33:39 - 12:03:39 -543
Bishop 11:48:36 -34.5 Dark Up 47.8 267.1 Up 11:33:36 - 12:03:36 -588
Beatty 11:48:31 -33.2 Dark Up 46.5 268.6 Up 11:33:31 - 12:03:31 -597
Indian Springs 11:48:28 -32.4 Dark Up 45.7 269.6 Up 11:33:28 - 12:03:28 -605
Henderson 11:48:26 -31.8 Dark Up 45.1 270.5 Up 11:33:26 - 12:03:26 -642
Patrick 11:48:22 -30.8 Dark Up 44.2 271.8 Up 11:33:22 - 12:03:22 -678
DCO 11:48:20 -30.2 Dark Up 43.6 272.5 Up 11:33:20 - 12:03:20 -691
Searchlight/Boulder City 11:48:25 -31.7 Dark Up 45.1 271.1 Up 11:33:25 - 12:03:25 -699
Kingman/Dolan Springs 11:48:22 -31.0 Dark Up 44.3 271.9 Up 11:33:22 - 12:03:22 -705
Laughlin/Bullhead City 11:48:23 -31.4 Dark Up 44.8 271.6 Up 11:33:23 - 12:03:23 -721
Mohave Valley 11:48:23 -31.4 Dark Up 44.8 271.9 Up 11:33:23 - 12:03:23 -749
Lake Havasu City 11:48:22 -31.1 Dark Up 44.5 272.4 Up 11:33:22 - 12:03:22 -784
George/Scottsdale 11:48:15 -29.0 Dark Up 42.5 274.4 Up 11:33:15 - 12:03:15 -798
Parker 11:48:21 -31.1 Dark Up 44.5 272.8 Up 11:33:21 - 12:03:21 -819
CPSLO 11:48:39 -36.3 Dark Up 49.7 268.0 Up 11:33:39 - 12:03:39 -853
Blythe 11:48:21 -31.3 Dark Up 44.7 273.1 Up 11:33:21 - 12:03:21 -881
Idyllwild 11:48:26 -33.0 Dark Up 46.5 271.9 Up 11:33:26 - 12:03:26 -923
Wildwood 11:48:32 -34.6 Dark Up 48.0 270.5 Up 11:33:32 - 12:03:32 -932
Calipatria 11:48:22 -32.0 Dark Up 45.5 273.2 Up 11:33:22 - 12:03:22 -957
Yuma 11:48:20 -31.2 Dark Up 44.7 274.0 Up 11:33:20 - 12:03:20 -978

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 11:51UT)
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        64
Positions are for J2000

Event circumstances last updated at 2019/11/13 21:19:31 UT

Marc W. Buie, Southwest Research Institute

RECON