RECON: TNO occultation with 471210

Event between (471210) 10VW11 and star GA0840:00601401 with event index number of 1641073

Geocentric closest approach at 2026/11/30 10:48:54 UTC

J2000 position of star is 05:25:19.0 -04:51:07
Equinox of date position of star is 05:26:17.3 -04:50:08
Stellar brightness G=10.6, use SENSEUP=4
Star is 70 degrees from the moon. Moon is 59% illuminated.
TNO apparent brightness V=21.0

[RECON map]
TNO is 37.1 AU from the Sun and 36.2 AU from the Earth.
The TNO is moving 24.2 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 724 seconds.
The 1-sigma cross-track error in the shadow position is 4774 km.
The sky-plane scale is 26289.9 km/arcsec.

The TNO has an absolute magnitude Hv=5.3
Diameter=524.8 km assuming a 5% albedo -- 21.7 sec chord
Diameter=214.3 km assuming a 30% albedo -- 8.9 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 471210, (2026/11/30 10:49UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:15:50.0 -08:10:21  0.1  4.29  74
67Bet Eri      05:09:10.5 -05:03:13  2.8  4.36  75
PPM 188111     05:30:44.3 -03:25:37  5.6  1.73  69
PPM 188016     05:25:10.8 -04:32:41  8.5  0.46  71
PPM 188042     05:26:45.9 -04:41:53  8.9  0.13  70
471210         05:26:38.7 -04:49:47 10.6        70
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 1.2 sigma about the mid-time.
The median site spacing is 19.5 km RECON observability=1.0 and success probability=6.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 10:46:57 -44.8 Dark Up 29.3 215.3 Low 10:31:57 - 11:01:57 6201
Summerland 10:46:57 -45.1 Dark Up 29.6 215.1 Low 10:31:57 - 11:01:57 6184
Penticton 10:46:56 -45.0 Dark Up 29.7 215.2 Low 10:31:56 - 11:01:56 6178
Okanagan Falls 10:46:57 -45.1 Dark Up 29.8 215.2 Low 10:31:57 - 11:01:57 6164
Oliver 10:46:56 -45.1 Dark Up 29.9 215.3 Low 10:31:56 - 11:01:56 6152
Anarchist Mountain Observatory 10:46:56 -45.1 Dark Up 30.0 215.6 Up 10:31:56 - 11:01:56 6137
Oroville 10:46:56 -45.2 Dark Up 30.1 215.5 Up 10:31:56 - 11:01:56 6133
Tonasket 10:46:55 -45.2 Dark Up 30.3 215.6 Up 10:31:55 - 11:01:55 6116
Okanogan 10:46:55 -45.5 Dark Up 30.6 215.5 Up 10:31:55 - 11:01:55 6093
Brewster 10:46:56 -45.7 Dark Up 30.9 215.4 Up 10:31:56 - 11:01:56 6076
Manson/Chelan 10:46:56 -46.0 Dark Up 31.2 215.1 Up 10:31:56 - 11:01:56 6066
Wenatchee 10:46:56 -46.3 Dark Up 31.7 215.1 Up 10:31:56 - 11:01:56 6033
Ellensburg 10:46:56 -46.5 Dark Up 32.1 215.0 Up 10:31:56 - 11:01:56 6005
Yakima 10:46:56 -46.7 Dark Up 32.4 215.1 Up 10:31:56 - 11:01:56 5975
Toppenish/White Swan 10:46:55 -46.7 Dark Up 32.6 215.4 Up 10:31:55 - 11:01:55 5956
Pasco 10:46:51 -45.9 Dark Up 32.1 216.8 Up 10:31:51 - 11:01:51 5929
Goldendale 10:46:56 -47.1 Dark Up 33.2 215.1 Up 10:31:56 - 11:01:56 5920
The Dalles 10:46:57 -47.4 Dark Up 33.5 214.8 Up 10:31:57 - 11:01:57 5908
PNWRO 10:46:50 -45.8 Dark Up 32.2 217.1 Up 10:31:50 - 11:01:50 5907
Maupin 10:46:56 -47.5 Dark Up 33.8 215.1 Up 10:31:56 - 11:01:56 5874
Madras/Culver 10:46:55 -47.7 Dark Up 34.3 215.3 Up 10:31:55 - 11:01:55 5832
Sisters 10:46:56 -48.1 Dark Up 34.7 214.9 Up 10:31:56 - 11:01:56 5812
Redmond 10:46:55 -47.8 Dark Up 34.6 215.3 Up 10:31:55 - 11:01:55 5805
Bend 10:46:55 -48.0 Dark Up 34.8 215.3 Up 10:31:55 - 11:01:55 5790
Oregon Observatory 10:46:56 -48.1 Dark Up 35.0 215.2 Up 10:31:56 - 11:01:56 5778
La Pine/Gilchrist 10:46:55 -48.3 Dark Up 35.2 215.2 Up 10:31:55 - 11:01:55 5763
North Lake 10:46:53 -48.0 Dark Up 35.3 216.1 Up 10:31:53 - 11:01:53 5720
Chiloquin 10:46:55 -48.8 Dark Up 36.3 215.3 Up 10:31:55 - 11:01:55 5679
Paisley 10:46:51 -47.9 Dark Up 35.6 216.7 Up 10:31:51 - 11:01:51 5670
Klamath Falls 10:46:55 -48.9 Dark Up 36.5 215.5 Up 10:31:55 - 11:01:55 5650
Lakeview 10:46:50 -47.9 Dark Up 35.9 217.1 Up 10:31:50 - 11:01:50 5626
Tulelake 10:46:54 -48.7 Dark Up 36.6 216.0 Up 10:31:54 - 11:01:54 5624
Cedarville 10:46:50 -47.9 Dark Up 36.4 217.6 Up 10:31:50 - 11:01:50 5570
Fall River/Burney 10:46:53 -48.9 Dark Up 37.3 216.5 Up 10:31:53 - 11:01:53 5548
Susanville 10:46:49 -48.5 Dark Up 37.5 217.6 Up 10:31:49 - 11:01:49 5485
Greenville 10:46:50 -48.8 Dark Up 37.8 217.4 Up 10:31:50 - 11:01:50 5466
Gimple 10:46:50 -48.8 Dark Up 37.8 217.5 Up 10:31:50 - 11:01:50 5465
Quincy 10:46:51 -48.9 Dark Up 38.0 217.5 Up 10:31:51 - 11:01:51 5449
Portola 10:46:49 -48.5 Dark Up 37.9 218.0 Up 10:31:49 - 11:01:49 5431
Reno 10:46:47 -48.1 Dark Up 37.8 218.9 Up 10:31:47 - 11:01:47 5399
Carson City 10:46:47 -48.2 Dark Up 38.0 219.1 Up 10:31:47 - 11:01:47 5368
Gardnerville 10:46:46 -48.2 Dark Up 38.2 219.3 Up 10:31:46 - 11:01:46 5346
Yerington 10:46:44 -47.7 Dark Up 37.9 219.9 Up 10:31:44 - 11:01:44 5341
Hawthorne 10:46:42 -47.4 Dark Up 38.0 220.7 Up 10:31:42 - 11:01:42 5293
Lee Vining 10:46:44 -47.9 Dark Up 38.6 220.4 Up 10:31:44 - 11:01:44 5252
Tonopah 10:46:37 -46.4 Dark Up 37.6 222.4 Up 10:31:37 - 11:01:37 5230
SwRI 10:46:07 -37.1 Dark Up 29.5 233.0 Low 10:31:07 - 11:01:07 5217
Bishop 10:46:40 -47.4 Dark Up 38.7 221.5 Up 10:31:40 - 11:01:40 5189
Beatty 10:46:36 -46.2 Dark Up 38.2 223.5 Up 10:31:36 - 11:01:36 5122
Lone Pine 10:46:40 -47.2 Dark Up 39.1 222.3 Up 10:31:40 - 11:01:40 5116
Indian Springs 10:46:32 -45.4 Dark Up 37.8 224.8 Up 10:31:32 - 11:01:32 5076
CPSLO 10:46:46 -49.5 Dark Up 41.5 220.2 Up 10:31:46 - 11:01:46 5043
Henderson 10:46:29 -44.9 Dark Up 37.8 225.8 Up 10:31:29 - 11:01:29 5017
Searchlight/Boulder City 10:46:28 -44.9 Dark Up 38.2 226.2 Up 10:31:28 - 11:01:28 4964
Patrick 10:46:25 -44.0 Dark Up 37.6 227.3 Up 10:31:25 - 11:01:25 4942
Laughlin/Bullhead City 10:46:27 -44.6 Dark Up 38.2 226.7 Up 10:31:27 - 11:01:27 4931
Kingman/Dolan Springs 10:46:26 -44.2 Dark Up 37.9 227.2 Up 10:31:26 - 11:01:26 4925
Mohave Valley 10:46:27 -44.6 Dark Up 38.4 226.9 Up 10:31:27 - 11:01:27 4907
Wildwood 10:46:39 -48.0 Dark Up 41.3 223.1 Up 10:31:39 - 11:01:39 4900
Lake Havasu City 10:46:26 -44.4 Dark Up 38.5 227.3 Up 10:31:26 - 11:01:26 4866
Idyllwild 10:46:32 -46.4 Dark Up 40.4 225.4 Up 10:31:32 - 11:01:32 4836
Parker 10:46:25 -44.4 Dark Up 38.7 227.6 Up 10:31:25 - 11:01:25 4833
Blythe 10:46:26 -44.7 Dark Up 39.3 227.6 Up 10:31:26 - 11:01:26 4790
Calipatria 10:46:28 -45.5 Dark Up 40.2 226.9 Up 10:31:28 - 11:01:28 4760
George/Scottsdale 10:46:18 -42.4 Dark Up 37.5 230.2 Up 10:31:18 - 11:01:18 4754
Yuma 10:46:25 -44.8 Dark Up 39.9 228.1 Up 10:31:25 - 11:01:25 4705

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 471210, (2026/11/30 10:49UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:14:32.3 -08:12:06  0.1  4.29  74
67Bet Eri      05:07:50.8 -05:05:13  2.8  4.36  75
PPM 188111     05:29:23.7 -03:26:47  5.6  1.73  69
PPM 188016     05:23:50.8 -04:34:04  8.5  0.46  71
PPM 188042     05:25:26.1 -04:43:13  8.9  0.13  70
471210         05:25:19.0 -04:51:07 10.6        70
Positions are for J2000

Event circumstances last updated at 2019/09/01 22:44:17 UT

Marc W. Buie, Southwest Research Institute

RECON