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 04:51:53 UTC

J2000 position of star is 03:49:51.7 +18:49:34
Equinox of date position of star is 03:51:03.5 +18:53:17
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 187 seconds.
The 1-sigma cross-track error in the shadow position is 1240 km.
The sky-plane scale is 20313.9 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=140.0 km assuming a 5% albedo -- 2.6 sec chord
Diameter=57.1 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 10TJ182, (2026/12/02 04:52UT)
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 4.8 sigma about the mid-time.
The median site spacing is 18.3 km RECON observability=1.0 and success probability=30.6%
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 04:52:47 -45.9 Dark Down 49.3 128.7 Up 04:37:47 - 05:07:47 -251
Victoria 04:53:01 -44.0 Dark Down 48.2 122.2 Up 04:38:01 - 05:08:01 -270
Kelowna 04:52:49 -46.0 Dark Down 49.5 128.1 Up 04:37:49 - 05:07:49 -277
Peachland 04:52:50 -45.8 Dark Down 49.4 127.7 Up 04:37:50 - 05:07:50 -277
Summerland 04:52:50 -45.9 Dark Down 49.5 127.6 Up 04:37:50 - 05:07:50 -291
Penticton 04:52:50 -46.0 Dark Down 49.6 127.7 Up 04:37:50 - 05:07:50 -299
Oliver 04:52:51 -46.2 Dark Down 49.9 127.4 Up 04:37:51 - 05:07:51 -326
Anarchist Mountain Observatory 04:52:51 -46.4 Dark Down 50.1 127.5 Up 04:37:51 - 05:07:51 -345
Tonasket 04:52:52 -46.4 Dark Down 50.2 127.1 Up 04:37:52 - 05:07:52 -367
Okanogan 04:52:53 -46.5 Dark Down 50.3 126.6 Up 04:37:53 - 05:07:53 -389
Brewster 04:52:54 -46.4 Dark Down 50.4 126.1 Up 04:37:54 - 05:07:54 -405
Manson/Chelan 04:52:56 -46.3 Dark Down 50.3 125.4 Up 04:37:56 - 05:07:56 -411
Entiat 04:52:56 -46.3 Dark Down 50.4 125.1 Up 04:37:56 - 05:07:56 -427
Wenatchee 04:52:58 -46.4 Dark Down 50.5 124.8 Up 04:37:58 - 05:07:58 -444
Ellensburg 04:52:59 -46.4 Dark Down 50.6 124.1 Up 04:37:59 - 05:07:59 -470
Yakima 04:53:00 -46.5 Dark Down 50.8 123.7 Up 04:38:00 - 05:08:00 -502
Toppenish/White Swan 04:53:00 -46.7 Dark Down 51.1 123.7 Up 04:38:00 - 05:08:00 -525
Goldendale 04:53:03 -46.6 Dark Down 51.1 122.6 Up 04:38:03 - 05:08:03 -557
The Dalles 04:53:05 -46.4 Dark Down 51.0 121.9 Up 04:38:05 - 05:08:05 -564
Pasco 04:52:58 -47.5 Dark Down 51.8 125.1 Up 04:37:58 - 05:07:58 -571
PNWRO 04:52:58 -47.8 Dark Down 52.1 125.1 Up 04:37:58 - 05:07:58 -598
Maupin 04:53:06 -46.6 Dark Down 51.3 121.6 Up 04:38:06 - 05:08:06 -601
Sisters 04:53:09 -46.5 Dark Down 51.5 120.1 Up 04:38:09 - 05:08:09 -658
Redmond 04:53:08 -46.8 Dark Down 51.7 120.5 Up 04:38:08 - 05:08:08 -672
Bend 04:53:09 -46.8 Dark Down 51.8 120.2 Up 04:38:09 - 05:08:09 -685
Oregon Observatory 04:53:10 -46.7 Dark Down 51.8 119.8 Up 04:38:10 - 05:08:10 -696
La Pine/Gilchrist 04:53:11 -46.7 Dark Down 51.8 119.5 Up 04:38:11 - 05:08:11 -711
North Lake 04:53:11 -47.3 Dark Down 52.4 119.7 Up 04:38:11 - 05:08:11 -765
Paisley 04:53:11 -47.7 Dark Down 52.9 119.5 Up 04:38:11 - 05:08:11 -823
Klamath Falls 04:53:15 -46.9 Dark Down 52.4 117.6 Up 04:38:15 - 05:08:15 -824
Lakeview 04:53:12 -47.9 Dark Down 53.3 119.2 Up 04:38:12 - 05:08:12 -872
Cedarville 04:53:13 -48.2 Dark Down 53.7 118.6 Up 04:38:13 - 05:08:13 -933
Fall River/Burney 04:53:17 -47.4 Dark Down 53.2 116.6 Up 04:38:17 - 05:08:17 -936
Susanville 04:53:18 -48.1 Dark Down 53.9 116.7 Up 04:38:18 - 05:08:18 -1014
Greenville 04:53:19 -48.0 Dark Down 53.9 116.1 Up 04:38:19 - 05:08:19 -1028
Gimple 04:53:19 -48.0 Dark Down 53.9 116.1 Up 04:38:19 - 05:08:19 -1031
Quincy 04:53:19 -48.0 Dark Down 54.0 115.8 Up 04:38:19 - 05:08:19 -1046
Portola 04:53:18 -48.4 Dark Down 54.3 116.2 Up 04:38:18 - 05:08:18 -1072
Reno 04:53:17 -48.9 Dark Down 54.9 116.6 Up 04:38:17 - 05:08:17 -1116
Carson City 04:53:18 -49.0 Dark Down 55.1 116.1 Up 04:38:18 - 05:08:18 -1149
Gardnerville 04:53:19 -49.1 Dark Down 55.2 115.9 Up 04:38:19 - 05:08:19 -1172
Yerington 04:53:17 -49.6 Dark Down 55.6 116.6 Up 04:38:17 - 05:08:17 -1187
Hawthorne 04:53:17 -50.1 Dark Down 56.2 116.6 Up 04:38:17 - 05:08:17 -1245
Lee Vining 04:53:20 -49.8 Dark Down 56.1 115.3 Up 04:38:20 - 05:08:20 -1279
Tonopah 04:53:14 -51.2 Dark Down 57.4 117.6 Up 04:38:14 - 05:08:14 -1333
Bishop 04:53:19 -50.5 Dark Down 56.9 115.3 Up 04:38:19 - 05:08:19 -1357
Beatty 04:53:16 -51.8 Dark Down 58.2 116.5 Up 04:38:16 - 05:08:16 -1453
CPSLO 04:53:31 -49.0 Dark Down 56.0 110.1 Up 04:38:31 - 05:08:31 -1468
Niwot 04:52:32 -59.2 Dark Down 63.5 137.9 Up 04:37:32 - 05:07:32 -1512
Indian Springs 04:53:13 -52.7 Dark Down 59.1 117.3 Up 04:38:13 - 05:08:13 -1519
SwRI 04:52:33 -59.2 Dark Down 63.5 137.6 Up 04:37:33 - 05:07:33 -1519
Henderson 04:53:12 -53.4 Dark Down 59.9 117.3 Up 04:38:12 - 05:08:12 -1591
Searchlight/Boulder City 04:53:13 -53.6 Dark Down 60.2 116.5 Up 04:38:13 - 05:08:13 -1646
Wildwood 04:53:27 -50.8 Dark Down 58.0 110.4 Up 04:38:27 - 05:08:27 -1650
Laughlin/Bullhead City 04:53:13 -53.9 Dark Down 60.6 116.5 Up 04:38:13 - 05:08:13 -1686
Patrick 04:53:10 -54.4 Dark Down 61.0 117.7 Up 04:38:10 - 05:08:10 -1686
Kingman/Dolan Springs 04:53:11 -54.3 Dark Down 60.9 117.1 Up 04:38:11 - 05:08:11 -1701
Mohave Valley 04:53:13 -54.0 Dark Down 60.7 116.0 Up 04:38:13 - 05:08:13 -1712
DCO 04:53:09 -55.0 Dark Down 61.6 118.1 Up 04:38:09 - 05:08:09 -1738
Idyllwild 04:53:23 -52.4 Dark Down 59.6 111.8 Up 04:38:23 - 05:08:23 -1748
Lake Havasu City 04:53:13 -54.2 Dark Down 61.1 115.7 Up 04:38:13 - 05:08:13 -1758
Parker 04:53:14 -54.3 Dark Down 61.2 115.2 Up 04:38:14 - 05:08:14 -1792
Blythe 04:53:16 -54.2 Dark Down 61.2 113.9 Up 04:38:16 - 05:08:16 -1831
Calipatria 04:53:20 -53.5 Dark Down 60.7 112.1 Up 04:38:20 - 05:08:20 -1846
George/Scottsdale 04:53:07 -56.4 Dark Down 63.2 117.5 Up 04:38:07 - 05:08:07 -1913
Yuma 04:53:18 -54.3 Dark Down 61.6 112.4 Up 04:38:18 - 05:08:18 -1918

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 04:52UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  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 2020/09/27 20:31:35 UT

Marc W. Buie, Southwest Research Institute

RECON