RECON: TNO occultation with 10TG192

Event between 10TG192 and star GA1120:00823563 with event index number of 1498907

Geocentric closest approach at 2026/01/05 02:32:49 UTC

J2000 position of star is 04:52:00.3 +23:51:11
Equinox of date position of star is 04:53:10.3 +23:53:02
Stellar brightness G=15.4, use SENSEUP=128
Star is 53 degrees from the moon. Moon is 96% illuminated.
TNO apparent brightness V=23.2

[RECON map]
TNO is 42.9 AU from the Sun and 42.0 AU from the Earth.
The TNO is moving 21.6 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 485 seconds.
The 1-sigma cross-track error in the shadow position is 3540 km.
The sky-plane scale is 30478.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.8
Diameter=267.9 km assuming a 5% albedo -- 12.4 sec chord
Diameter=109.4 km assuming a 30% albedo -- 5.1 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 10TG192, (2026/01/05 02:33UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:25.0 +16:33:35  0.8  8.26  58
Alnath         05:27:56.3 +28:37:38  1.6  9.04  45
PPM 093742     04:47:16.9 +23:40:26  6.1  1.46  55
PPM 093861     04:55:18.6 +23:35:43  8.5  0.50  53
PPM 093837     04:53:57.2 +23:47:35  9.9  0.13  53
10TG192        04:53:35.0 +23:53:41 15.4        53
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 16.5 km RECON observability=1.0 and success probability=3.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 02:34:53 -22.2 Dark Up 44.1 106.1 Up 02:19:53 - 02:49:53 9368
Summerland 02:34:55 -21.9 Dark Up 44.0 105.5 Up 02:19:55 - 02:49:55 9352
Penticton 02:34:56 -22.0 Dark Up 44.1 105.6 Up 02:19:56 - 02:49:56 9343
Okanagan Falls 02:34:56 -22.0 Dark Up 44.2 105.4 Up 02:19:56 - 02:49:56 9329
Oliver 02:34:56 -21.9 Dark Up 44.2 105.3 Up 02:19:56 - 02:49:56 9315
Anarchist Mountain Observatory 02:34:56 -22.0 Dark Up 44.4 105.3 Up 02:19:56 - 02:49:56 9296
Oroville 02:34:57 -22.0 Dark Up 44.4 105.1 Up 02:19:57 - 02:49:57 9292
Tonasket 02:34:58 -21.9 Dark Up 44.4 104.9 Up 02:19:58 - 02:49:58 9273
Okanogan 02:34:59 -21.8 Dark Up 44.4 104.5 Up 02:19:59 - 02:49:59 9251
Brewster 02:35:00 -21.6 Dark Up 44.4 104.0 Up 02:20:00 - 02:50:00 9234
Manson/Chelan 02:35:02 -21.3 Dark Up 44.2 103.5 Up 02:20:02 - 02:50:02 9228
Entiat 02:35:03 -21.3 Dark Up 44.2 103.3 Up 02:20:03 - 02:50:03 9212
Wenatchee 02:35:04 -21.1 Dark Up 44.2 102.9 Up 02:20:04 - 02:50:04 9195
Ellensburg 02:35:06 -20.9 Dark Up 44.1 102.3 Up 02:20:06 - 02:50:06 9167
Yakima 02:35:07 -20.8 Dark Up 44.2 102.0 Up 02:20:07 - 02:50:07 9135
Toppenish/White Swan 02:35:07 -20.9 Dark Up 44.4 101.9 Up 02:20:07 - 02:50:07 9112
Goldendale 02:35:10 -20.5 Dark Up 44.2 101.0 Up 02:20:10 - 02:50:10 9079
The Dalles 02:35:12 -20.2 Dark Up 44.0 100.5 Up 02:20:12 - 02:50:12 9071
Pasco 02:35:05 -21.7 Dark Up 45.2 102.9 Up 02:20:05 - 02:50:05 9064
George/Umatilla 02:35:06 -21.5 Dark Up 45.2 102.4 Up 02:20:06 - 02:50:06 9042
PNWRO 02:35:06 -21.9 Dark Up 45.4 102.8 Up 02:20:06 - 02:50:06 9036
Maupin 02:35:13 -20.2 Dark Up 44.1 100.2 Up 02:20:13 - 02:50:13 9033
Madras/Culver 02:35:15 -20.1 Dark Up 44.2 99.6 Up 02:20:15 - 02:50:15 8989
Sisters 02:35:17 -19.7 Dark Up 43.9 99.0 Up 02:20:17 - 02:50:17 8975
Redmond 02:35:16 -20.0 Dark Up 44.2 99.3 Up 02:20:16 - 02:50:16 8960
Bend 02:35:17 -19.8 Dark Up 44.2 98.9 Up 02:20:17 - 02:50:17 8947
Oregon Observatory 02:35:18 -19.7 Dark Up 44.1 98.7 Up 02:20:18 - 02:50:18 8936
La Pine/Gilchrist 02:35:18 -19.6 Dark Up 44.1 98.4 Up 02:20:18 - 02:50:18 8921
North Lake 02:35:19 -19.9 Dark Up 44.6 98.5 Up 02:20:19 - 02:50:19 8865
Chiloquin 02:35:24 -19.1 Dark Up 44.0 97.1 Up 02:20:24 - 02:50:24 8837
Paisley 02:35:20 -20.1 Dark Up 44.9 98.2 Up 02:20:20 - 02:50:20 8806
Klamath Falls 02:35:24 -19.1 Dark Up 44.1 96.8 Up 02:20:24 - 02:50:24 8805
Tulelake 02:35:24 -19.3 Dark Up 44.4 96.8 Up 02:20:24 - 02:50:24 8772
Lakeview 02:35:21 -20.1 Dark Up 45.1 97.9 Up 02:20:21 - 02:50:21 8756
Cedarville 02:35:22 -20.1 Dark Up 45.4 97.4 Up 02:20:22 - 02:50:22 8693
Fall River/Burney 02:35:28 -19.1 Dark Up 44.5 96.0 Up 02:20:28 - 02:50:28 8691
Susanville 02:35:28 -19.5 Dark Up 45.2 95.9 Up 02:20:28 - 02:50:28 8611
Greenville 02:35:29 -19.2 Dark Up 45.0 95.4 Up 02:20:29 - 02:50:29 8596
Gimple 02:35:28 -19.3 Dark Up 45.0 95.5 Up 02:20:28 - 02:50:28 8593
Quincy 02:35:29 -19.2 Dark Up 45.0 95.2 Up 02:20:29 - 02:50:29 8578
Portola 02:35:30 -19.5 Dark Up 45.4 95.4 Up 02:20:30 - 02:50:30 8551
Reno 02:35:28 -19.9 Dark Up 45.9 95.6 Up 02:20:28 - 02:50:28 8506
Carson City 02:35:29 -19.9 Dark Up 45.9 95.3 Up 02:20:29 - 02:50:29 8473
Gardnerville 02:35:29 -19.8 Dark Up 46.0 95.1 Up 02:20:29 - 02:50:29 8449
Yerington 02:35:28 -20.3 Dark Up 46.4 95.5 Up 02:20:28 - 02:50:28 8434
Hawthorne 02:35:28 -20.6 Dark Up 46.9 95.4 Up 02:20:28 - 02:50:28 8375
Lee Vining 02:35:31 -20.1 Dark Up 46.6 94.5 Up 02:20:31 - 02:50:31 8340
Tonopah 02:35:26 -21.6 Dark Up 48.0 95.9 Up 02:20:26 - 02:50:26 8285
Bishop 02:35:30 -20.5 Dark Up 47.2 94.3 Up 02:20:30 - 02:50:30 8260
Lone Pine 02:35:33 -20.6 Dark Up 47.5 93.7 Up 02:20:33 - 02:50:33 8179
Beatty 02:35:28 -21.7 Dark Up 48.5 94.9 Up 02:20:28 - 02:50:28 8162
CPSLO 02:35:44 -18.3 Dark Down 45.5 90.8 Up 02:20:44 - 02:50:44 8149
Niwot 02:34:47 -31.0 Dark Up 56.6 108.5 Up 02:19:47 - 02:49:47 8104
SwRI 02:34:47 -30.9 Dark Up 56.6 108.3 Up 02:19:47 - 02:49:47 8097
Indian Springs 02:35:26 -22.4 Dark Up 49.4 95.3 Up 02:20:26 - 02:50:26 8096
Henderson 02:35:26 -22.9 Dark Up 50.0 95.1 Up 02:20:26 - 02:50:26 8022
Searchlight/Boulder City 02:35:27 -22.8 Dark Up 50.1 94.5 Up 02:20:27 - 02:50:27 7966
Wildwood 02:35:41 -19.6 Dark Down 47.2 90.7 Up 02:20:41 - 02:50:41 7963
Laughlin/Bullhead City 02:35:27 -23.0 Dark Up 50.4 94.4 Up 02:20:27 - 02:50:27 7926
Patrick 02:35:24 -23.6 Dark Up 51.0 95.1 Up 02:20:24 - 02:50:24 7925
Kingman/Dolan Springs 02:35:25 -23.4 Dark Up 50.8 94.7 Up 02:20:25 - 02:50:25 7911
Mohave Valley 02:35:27 -23.0 Dark Up 50.4 94.0 Up 02:20:27 - 02:50:27 7900
DCO 02:35:23 -24.1 Dark Up 51.6 95.2 Up 02:20:23 - 02:50:23 7872
Idyllwild 02:35:37 -21.0 Dark Up 48.8 91.4 Up 02:20:37 - 02:50:37 7863
Lake Havasu City 02:35:27 -23.1 Dark Up 50.7 93.7 Up 02:20:27 - 02:50:27 7853
Parker 02:35:29 -23.0 Dark Up 50.7 93.3 Up 02:20:29 - 02:50:29 7818
Blythe 02:35:31 -22.7 Dark Up 50.5 92.5 Up 02:20:31 - 02:50:31 7778
Calipatria 02:35:35 -21.8 Dark Up 49.8 91.4 Up 02:20:35 - 02:50:35 7763
Yuma 02:35:33 -22.5 Dark Up 50.5 91.3 Up 02:20:33 - 02:50:33 7690

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 10TG192, (2026/01/05 02:33UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  8.26  58
Alnath         05:26:17.5 +28:36:23  1.6  9.04  45
PPM 093742     04:45:42.5 +23:37:41  6.1  1.46  55
PPM 093861     04:53:44.0 +23:33:16  8.5  0.50  53
PPM 093837     04:52:22.5 +23:45:06  9.9  0.13  53
10TG192        04:52:00.3 +23:51:11 15.4        53
Positions are for J2000

Event circumstances last updated at 2019/03/25 01:07:10 UT

Marc W. Buie, Southwest Research Institute

RECON