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 11:11:20 UTC

J2000 position of star is 05:25:19.0 -04:51:07
Equinox of date position of star is 05:26:18.7 -04:50:07
Stellar brightness G=10.6, use SENSEUP=4
Star is 71 degrees from the moon. Moon is 59% illuminated.
TNO apparent brightness V=25.7

[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 602 seconds.
The 1-sigma cross-track error in the shadow position is 2872 km.
The sky-plane scale is 26289.6 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=524.8 km assuming a 5% albedo -- 2.5 sec chord
Diameter=214.3 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 471210, (2026/11/30 11:11UT)
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 1.5 sigma about the mid-time.
The median site spacing is 20.3 km RECON observability=1.0 and success probability=14.5%
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 11:09:07 -41.3 Dark Up 26.8 221.0 Low 10:54:07 - 11:24:07 -316
Kelowna 11:09:07 -41.5 Dark Up 27.1 220.9 Low 10:54:07 - 11:24:07 -343
Peachland 11:09:08 -41.7 Dark Up 27.3 220.7 Low 10:54:08 - 11:24:08 -347
Summerland 11:09:07 -41.7 Dark Up 27.4 220.8 Low 10:54:07 - 11:24:07 -359
Penticton 11:09:07 -41.6 Dark Up 27.4 221.0 Low 10:54:07 - 11:24:07 -365
Victoria 11:09:15 -44.3 Dark Up 29.8 217.4 Low 10:54:15 - 11:24:15 -389
Oliver 11:09:06 -41.7 Dark Up 27.7 221.1 Low 10:54:06 - 11:24:06 -391
Anarchist Mountain Observatory 11:09:06 -41.6 Dark Up 27.7 221.3 Low 10:54:06 - 11:24:06 -406
Tonasket 11:09:05 -41.8 Dark Up 28.0 221.4 Low 10:54:05 - 11:24:05 -428
Okanogan 11:09:05 -42.0 Dark Up 28.3 221.3 Low 10:54:05 - 11:24:05 -451
Brewster 11:09:05 -42.2 Dark Up 28.6 221.2 Low 10:54:05 - 11:24:05 -469
Manson/Chelan 11:09:06 -42.5 Dark Up 28.9 220.9 Low 10:54:06 - 11:24:06 -480
Entiat 11:09:06 -42.6 Dark Up 29.1 220.9 Low 10:54:06 - 11:24:06 -495
Wenatchee 11:09:06 -42.7 Dark Up 29.4 220.9 Low 10:54:06 - 11:24:06 -513
Ellensburg 11:09:06 -42.9 Dark Up 29.8 220.9 Low 10:54:06 - 11:24:06 -542
Yakima 11:09:05 -43.1 Dark Up 30.1 221.0 Up 10:54:05 - 11:24:05 -573
Toppenish/White Swan 11:09:04 -43.0 Dark Up 30.2 221.2 Up 10:54:04 - 11:24:04 -592
Pasco 11:09:01 -42.2 Dark Up 29.7 222.6 Low 10:54:01 - 11:24:01 -619
Goldendale 11:09:04 -43.4 Dark Up 30.8 221.0 Up 10:54:04 - 11:24:04 -629
PNWRO 11:09:00 -42.1 Dark Up 29.8 222.9 Low 10:54:00 - 11:24:00 -641
The Dalles 11:09:05 -43.7 Dark Up 31.1 220.7 Up 10:54:05 - 11:24:05 -641
Maupin 11:09:04 -43.8 Dark Up 31.4 221.0 Up 10:54:04 - 11:24:04 -675
Sisters 11:09:05 -44.3 Dark Up 32.3 220.8 Up 10:54:05 - 11:24:05 -738
Redmond 11:09:04 -44.0 Dark Up 32.1 221.3 Up 10:54:04 - 11:24:04 -745
Bend 11:09:04 -44.2 Dark Up 32.4 221.2 Up 10:54:04 - 11:24:04 -760
Oregon Observatory 11:09:04 -44.3 Dark Up 32.5 221.2 Up 10:54:04 - 11:24:04 -772
La Pine/Gilchrist 11:09:04 -44.4 Dark Up 32.7 221.2 Up 10:54:04 - 11:24:04 -788
North Lake 11:09:02 -44.1 Dark Up 32.8 222.0 Up 10:54:02 - 11:24:02 -832
Paisley 11:09:00 -43.9 Dark Up 33.0 222.6 Up 10:54:00 - 11:24:00 -882
Klamath Falls 11:09:03 -44.9 Dark Up 34.0 221.5 Up 10:54:03 - 11:24:03 -902
Lakeview 11:08:59 -43.9 Dark Up 33.3 223.0 Up 10:53:59 - 11:23:59 -926
Cedarville 11:08:58 -43.9 Dark Up 33.7 223.5 Up 10:53:58 - 11:23:58 -984
Fall River/Burney 11:09:00 -44.8 Dark Up 34.6 222.4 Up 10:54:00 - 11:24:00 -1006
Susanville 11:08:57 -44.4 Dark Up 34.7 223.5 Up 10:53:57 - 11:23:57 -1070
Greenville 11:08:58 -44.7 Dark Up 35.1 223.3 Up 10:53:58 - 11:23:58 -1089
Gimple 11:08:58 -44.6 Dark Up 35.0 223.4 Up 10:53:58 - 11:23:58 -1091
Quincy 11:08:58 -44.7 Dark Up 35.2 223.4 Up 10:53:58 - 11:23:58 -1107
Portola 11:08:56 -44.4 Dark Up 35.1 224.0 Up 10:53:56 - 11:23:56 -1124
Reno 11:08:54 -43.9 Dark Up 34.9 224.8 Up 10:53:54 - 11:23:54 -1157
Carson City 11:08:54 -43.9 Dark Up 35.2 225.0 Up 10:53:54 - 11:23:54 -1188
Gardnerville 11:08:53 -43.9 Dark Up 35.3 225.1 Up 10:53:53 - 11:23:53 -1210
Yerington 11:08:52 -43.5 Dark Up 34.9 225.7 Up 10:53:52 - 11:23:52 -1215
Hawthorne 11:08:50 -43.1 Dark Up 35.0 226.5 Up 10:53:50 - 11:23:50 -1264
Lee Vining 11:08:50 -43.6 Dark Up 35.6 226.3 Up 10:53:50 - 11:23:50 -1305
Niwot 11:08:18 -32.8 Dark Up 25.9 237.9 Low 10:53:18 - 11:23:18 -1325
Tonopah 11:08:45 -42.1 Dark Up 34.5 228.1 Up 10:53:45 - 11:23:45 -1326
SwRI 11:08:18 -32.8 Dark Up 26.0 237.9 Low 10:53:18 - 11:23:18 -1334
Bishop 11:08:48 -43.0 Dark Up 35.6 227.3 Up 10:53:48 - 11:23:48 -1370
Beatty 11:08:42 -41.8 Dark Up 35.0 229.1 Up 10:53:42 - 11:23:42 -1437
Indian Springs 11:08:39 -40.9 Dark Up 34.5 230.3 Up 10:53:39 - 11:23:39 -1483
CPSLO 11:08:52 -45.0 Dark Up 38.4 226.1 Up 10:53:52 - 11:23:52 -1518
Henderson 11:08:37 -40.4 Dark Up 34.5 231.2 Up 10:53:37 - 11:23:37 -1543
Searchlight/Boulder City 11:08:36 -40.4 Dark Up 34.8 231.6 Up 10:53:36 - 11:23:36 -1596
Patrick 11:08:33 -39.5 Dark Up 34.1 232.6 Up 10:53:33 - 11:23:33 -1618
Laughlin/Bullhead City 11:08:35 -40.1 Dark Up 34.7 232.1 Up 10:53:35 - 11:23:35 -1629
Kingman/Dolan Springs 11:08:34 -39.7 Dark Up 34.4 232.5 Up 10:53:34 - 11:23:34 -1635
Mohave Valley 11:08:34 -40.1 Dark Up 34.9 232.2 Up 10:53:34 - 11:23:34 -1654
DCO 11:08:30 -38.9 Dark Up 33.9 233.4 Up 10:53:30 - 11:23:30 -1657
Wildwood 11:08:45 -43.4 Dark Up 38.0 228.9 Up 10:53:45 - 11:23:45 -1662
Lake Havasu City 11:08:33 -39.9 Dark Up 35.0 232.7 Up 10:53:33 - 11:23:33 -1695
Idyllwild 11:08:39 -41.8 Dark Up 37.0 230.9 Up 10:53:39 - 11:23:39 -1726
Parker 11:08:33 -39.9 Dark Up 35.2 232.9 Up 10:53:33 - 11:23:33 -1728
Blythe 11:08:33 -40.1 Dark Up 35.7 232.9 Up 10:53:33 - 11:23:33 -1772
Calipatria 11:08:35 -40.9 Dark Up 36.6 232.4 Up 10:53:35 - 11:23:35 -1803
George/Scottsdale 11:08:25 -37.8 Dark Up 33.8 235.3 Up 10:53:25 - 11:23:25 -1807
Yuma 11:08:33 -40.1 Dark Up 36.3 233.4 Up 10:53:33 - 11:23:33 -1858

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 11:11UT)
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        71
Positions are for J2000

Event circumstances last updated at 2020/02/29 01:02:28 UT

Marc W. Buie, Southwest Research Institute

RECON