RECON: TNO occultation with 10TJ182

Event between 10TJ182 and star GA1080:00435381 with event index number of 1645943

Geocentric closest approach at 2026/12/02 05:08:26 UTC

J2000 position of star is 03:49:51.7 +18:49:34
Equinox of date position of star is 03:51:01.8 +18:53:11
Stellar brightness G=15.1, use SENSEUP=128
Star is 112 degrees from the moon. Moon is 40% illuminated.
TNO apparent brightness V=24.6

[RECON map]
TNO is 29.0 AU from the Sun and 28.0 AU from the Earth.
The TNO is moving 23.5 km/sec on the sky relative to the star, or, 4.2 arcsec/hr.
The 1-sigma error in the time of the event is 467 seconds.
The 1-sigma cross-track error in the shadow position is 2925 km.
The sky-plane scale is 20313.7 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=139.3 km assuming a 5% albedo -- 2.6 sec chord
Diameter=56.9 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 10TJ182, (2026/12/02 05:08UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:28.1 +16:33:41  0.8 11.21 102
44Zet Per      03:55:49.9 +31:57:41  2.8 13.09 109
PPM 119433     03:54:42.6 +17:24:19  6.0  1.69 112
PPM 119423     03:53:51.9 +18:59:47  8.5  0.59 112
PPM 119402     03:51:56.9 +19:20:03  8.7  0.45 112
10TJ182        03:51:24.9 +18:54:23 15.1       112
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 1.9 sigma about the mid-time.
The median site spacing is 18.6 km RECON observability=1.0 and success probability=13.8%
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 05:09:12 -48.3 Dark Down 51.3 133.9 Up 04:54:12 - 05:24:12 3229
Victoria 05:09:26 -46.6 Dark Down 50.4 127.1 Up 04:54:26 - 05:24:26 3203
Kelowna 05:09:13 -48.4 Dark Down 51.5 133.4 Up 04:54:13 - 05:24:13 3202
Peachland 05:09:14 -48.2 Dark Down 51.4 132.9 Up 04:54:14 - 05:24:14 3201
Summerland 05:09:14 -48.4 Dark Down 51.6 132.9 Up 04:54:14 - 05:24:14 3187
Penticton 05:09:14 -48.5 Dark Down 51.7 133.0 Up 04:54:14 - 05:24:14 3178
Oliver 05:09:15 -48.6 Dark Down 51.9 132.6 Up 04:54:15 - 05:24:15 3150
Anarchist Mountain Observatory 05:09:15 -48.8 Dark Down 52.1 132.7 Up 04:54:15 - 05:24:15 3132
Tonasket 05:09:15 -48.9 Dark Down 52.3 132.3 Up 04:54:15 - 05:24:15 3109
Okanogan 05:09:17 -49.0 Dark Down 52.5 131.8 Up 04:54:17 - 05:24:17 3086
Brewster 05:09:18 -49.0 Dark Down 52.5 131.3 Up 04:54:18 - 05:24:18 3069
Manson/Chelan 05:09:19 -48.8 Dark Down 52.5 130.6 Up 04:54:19 - 05:24:19 3062
Entiat 05:09:20 -48.9 Dark Down 52.6 130.3 Up 04:54:20 - 05:24:20 3046
Wenatchee 05:09:21 -48.9 Dark Down 52.7 129.9 Up 04:54:21 - 05:24:21 3028
Ellensburg 05:09:23 -49.0 Dark Down 52.9 129.2 Up 04:54:23 - 05:24:23 3001
Yakima 05:09:25 -49.1 Dark Down 53.1 128.8 Up 04:54:25 - 05:24:25 2968
Toppenish/White Swan 05:09:25 -49.3 Dark Down 53.3 128.8 Up 04:54:25 - 05:24:25 2945
Goldendale 05:09:27 -49.2 Dark Down 53.5 127.7 Up 04:54:27 - 05:24:27 2912
The Dalles 05:09:28 -49.1 Dark Down 53.4 127.0 Up 04:54:28 - 05:24:28 2904
Pasco 05:09:21 -50.2 Dark Down 54.1 130.3 Up 04:54:21 - 05:24:21 2899
PNWRO 05:09:22 -50.4 Dark Down 54.4 130.4 Up 04:54:22 - 05:24:22 2872
Maupin 05:09:30 -49.3 Dark Down 53.7 126.7 Up 04:54:30 - 05:24:30 2866
Sisters 05:09:33 -49.3 Dark Down 54.0 125.1 Up 04:54:33 - 05:24:33 2807
Redmond 05:09:32 -49.6 Dark Down 54.2 125.5 Up 04:54:32 - 05:24:32 2793
Bend 05:09:32 -49.6 Dark Down 54.2 125.1 Up 04:54:32 - 05:24:32 2779
Oregon Observatory 05:09:33 -49.5 Dark Down 54.3 124.8 Up 04:54:33 - 05:24:33 2768
La Pine/Gilchrist 05:09:35 -49.6 Dark Down 54.3 124.5 Up 04:54:35 - 05:24:35 2753
North Lake 05:09:33 -50.1 Dark Down 55.0 124.7 Up 04:54:33 - 05:24:33 2698
Paisley 05:09:34 -50.5 Dark Down 55.5 124.5 Up 04:54:34 - 05:24:34 2640
Klamath Falls 05:09:36 -49.8 Dark Down 55.0 122.4 Up 04:54:36 - 05:24:36 2638
Lakeview 05:09:35 -50.8 Dark Down 55.9 124.2 Up 04:54:35 - 05:24:35 2590
Cedarville 05:09:36 -51.2 Dark Down 56.4 123.6 Up 04:54:36 - 05:24:36 2527
Fall River/Burney 05:09:36 -50.4 Dark Down 55.9 121.4 Up 04:54:36 - 05:24:36 2525
Susanville 05:09:36 -51.1 Dark Down 56.7 121.6 Up 04:54:36 - 05:24:36 2446
Greenville 05:09:36 -51.0 Dark Down 56.6 120.8 Up 04:54:36 - 05:24:36 2433
Gimple 05:09:36 -51.1 Dark Down 56.7 120.9 Up 04:54:36 - 05:24:36 2430
Quincy 05:09:36 -51.1 Dark Down 56.7 120.6 Up 04:54:36 - 05:24:36 2415
Portola 05:09:36 -51.4 Dark Down 57.1 121.0 Up 04:54:36 - 05:24:36 2388
Reno 05:09:36 -52.0 Dark Down 57.7 121.5 Up 04:54:36 - 05:24:36 2342
Carson City 05:09:36 -52.1 Dark Down 57.9 121.0 Up 04:54:36 - 05:24:36 2310
Gardnerville 05:09:36 -52.2 Dark Down 58.0 120.7 Up 04:54:36 - 05:24:36 2287
Yerington 05:09:36 -52.6 Dark Down 58.4 121.5 Up 04:54:36 - 05:24:36 2271
Hawthorne 05:09:36 -53.2 Dark Down 59.0 121.6 Up 04:54:36 - 05:24:36 2212
Lee Vining 05:09:36 -52.9 Dark Down 58.9 120.1 Up 04:54:36 - 05:24:36 2180
Tonopah 05:09:36 -54.4 Dark Down 60.2 122.8 Up 04:54:36 - 05:24:36 2124
Bishop 05:09:36 -53.6 Dark Down 59.7 120.2 Up 04:54:36 - 05:24:36 2100
Beatty 05:09:36 -55.0 Dark Down 61.1 121.7 Up 04:54:36 - 05:24:36 2002
CPSLO 05:09:53 -52.3 Dark Down 59.1 114.4 Up 04:54:53 - 05:24:53 1980
Niwot 05:08:53 -61.9 Dark Down 65.4 145.7 Up 04:53:53 - 05:23:53 1963
SwRI 05:08:54 -61.9 Dark Down 65.4 145.4 Up 04:53:54 - 05:23:54 1955
Indian Springs 05:09:35 -55.9 Dark Down 62.0 122.7 Up 04:54:35 - 05:24:35 1937
Henderson 05:09:33 -56.6 Dark Down 62.8 122.8 Up 04:54:33 - 05:24:33 1864
Wildwood 05:09:36 -54.1 Dark Down 61.1 114.8 Up 04:54:36 - 05:24:36 1826
Searchlight/Boulder City 05:09:34 -56.8 Dark Down 63.1 121.9 Up 04:54:34 - 05:24:34 1808
Patrick 05:09:31 -57.6 Dark Down 63.9 123.4 Up 04:54:31 - 05:24:31 1769
Laughlin/Bullhead City 05:09:34 -57.2 Dark Down 63.5 121.9 Up 04:54:34 - 05:24:34 1768
Kingman/Dolan Springs 05:09:32 -57.6 Dark Down 63.8 122.7 Up 04:54:32 - 05:24:32 1754
Mohave Valley 05:09:34 -57.2 Dark Down 63.7 121.5 Up 04:54:34 - 05:24:34 1742
DCO 05:09:30 -58.3 Dark Down 64.5 123.9 Up 04:54:30 - 05:24:30 1718
Idyllwild 05:09:36 -55.7 Dark Down 62.7 116.6 Up 04:54:36 - 05:24:36 1712
Lake Havasu City 05:09:34 -57.5 Dark Down 64.0 121.1 Up 04:54:34 - 05:24:34 1696
Parker 05:09:35 -57.6 Dark Down 64.2 120.5 Up 04:54:35 - 05:24:35 1661
Blythe 05:09:36 -57.5 Dark Down 64.3 119.2 Up 04:54:36 - 05:24:36 1621
Calipatria 05:09:36 -56.8 Dark Down 63.8 117.0 Up 04:54:36 - 05:24:36 1609
George/Scottsdale 05:09:28 -59.7 Dark Down 66.2 123.4 Up 04:54:28 - 05:24:28 1542
Yuma 05:09:36 -57.7 Dark Down 64.7 117.4 Up 04:54:36 - 05:24:36 1534

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 10TJ182, (2026/12/02 05:08UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 11.21 102
44Zet Per      03:54:07.9 +31:53:01  2.8 13.09 109
PPM 119433     03:53:10.2 +17:19:37  6.0  1.69 112
PPM 119423     03:52:18.6 +18:55:03  8.5  0.59 112
PPM 119402     03:50:23.5 +19:15:15  8.7  0.45 112
10TJ182        03:49:51.7 +18:49:34 15.1       112
Positions are for J2000

Event circumstances last updated at 2020/04/03 21:35:25 UT

Marc W. Buie, Southwest Research Institute

RECON