RECON: TNO occultation with 136120

Event between (136120) 03LG7 and star GA0800:11973733 with event index number of 1474016

Geocentric closest approach at 2026/07/02 07:03:19 UTC

J2000 position of star is 18:42:34.1 -08:47:10
Equinox of date position of star is 18:43:37.2 -08:45:58
Stellar brightness G=15.1, use SENSEUP=128
Star is 30 degrees from the moon. Moon is 95% illuminated.
TNO apparent brightness V=23.8

[RECON map]
TNO is 39.2 AU from the Sun and 38.2 AU from the Earth.
The TNO is moving 24.2 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 639 seconds.
The 1-sigma cross-track error in the shadow position is 5666 km.
The sky-plane scale is 27680.3 km/arcsec.

The TNO has an absolute magnitude Hv=7.9
Diameter=158.5 km assuming a 5% albedo -- 6.5 sec chord
Diameter=64.7 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is 3:1EE
 
 
 
 
 
 

Star training set for 136120, (2026/07/02 07:03UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:02.2 -26:29:18  0.9 36.13  56
Nunki          18:56:54.4 -26:15:41  2.0 17.77  23
Eps Sct        18:44:57.8 -08:14:49  4.9  0.56  30
PPM 202030     18:42:57.2 -08:29:51  8.5  0.37  30
PPM 202066     18:44:44.4 -08:48:44  9.5  0.19  29
136120         18:44:01.0 -08:45:30 15.1        29
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 1.4 sigma about the mid-time.
The median site spacing is 15.5 km RECON observability=1.0 and success probability=6.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 07:03:56 -16.0 AT Up 30.1 164.3 Up 06:48:56 - 07:18:56 -213
Summerland 07:03:57 -16.2 AT Up 30.3 163.9 Up 06:48:57 - 07:18:57 -231
Penticton 07:03:57 -16.3 AT Up 30.4 164.0 Up 06:48:57 - 07:18:57 -235
Okanagan Falls 07:03:57 -16.5 AT Up 30.6 164.0 Up 06:48:57 - 07:18:57 -246
Oliver 07:03:57 -16.6 AT Up 30.8 164.0 Up 06:48:57 - 07:18:57 -255
Anarchist Mountain Observatory 07:03:56 -16.8 AT Up 31.0 164.2 Up 06:48:56 - 07:18:56 -265
Oroville 07:03:57 -16.9 AT Up 31.0 164.1 Up 06:48:57 - 07:18:57 -270
Tonasket 07:03:57 -17.1 AT Up 31.3 164.1 Up 06:48:57 - 07:18:57 -284
Okanogan 07:03:58 -17.4 AT Up 31.5 163.8 Up 06:48:58 - 07:18:58 -304
Brewster 07:03:59 -17.6 AT Up 31.8 163.6 Up 06:48:59 - 07:18:59 -321
Manson/Chelan 07:04:00 -17.8 AT Up 31.9 163.1 Up 06:49:00 - 07:19:00 -334
Entiat 07:04:00 -18.0 AT Up 32.1 163.0 Up 06:49:00 - 07:19:00 -348
Wenatchee 07:04:01 -18.2 Dark Up 32.3 162.8 Up 06:49:01 - 07:19:01 -364
Ellensburg 07:04:02 -18.6 Dark Up 32.7 162.5 Up 06:49:02 - 07:19:02 -390
Yakima 07:04:02 -19.0 Dark Up 33.1 162.4 Up 06:49:02 - 07:19:02 -415
Toppenish/White Swan 07:04:02 -19.2 Dark Up 33.3 162.6 Up 06:49:02 - 07:19:02 -429
Pasco 07:03:58 -19.5 Dark Up 33.7 164.0 Up 06:48:58 - 07:18:58 -435
PNWRO 07:03:58 -19.8 Dark Up 33.9 164.2 Up 06:48:58 - 07:18:58 -450
George/Umatilla 07:03:59 -19.8 Dark Up 33.9 163.7 Up 06:48:59 - 07:18:59 -456
Goldendale 07:04:04 -19.7 Dark Up 33.7 162.0 Up 06:49:04 - 07:19:04 -465
The Dalles 07:04:05 -19.8 Dark Up 33.9 161.5 Up 06:49:05 - 07:19:05 -480
Maupin 07:04:05 -20.2 Dark Up 34.3 161.5 Up 06:49:05 - 07:19:05 -507
Madras/Culver 07:04:06 -20.8 Dark Up 34.8 161.4 Up 06:49:06 - 07:19:06 -543
Sisters 07:04:07 -21.0 Dark Up 35.0 160.8 Up 06:49:07 - 07:19:07 -566
Redmond 07:04:06 -21.1 Dark Up 35.1 161.2 Up 06:49:06 - 07:19:06 -567
Bend 07:04:07 -21.3 Dark Up 35.3 161.0 Up 06:49:07 - 07:19:07 -582
Oregon Observatory 07:04:07 -21.4 Dark Up 35.4 160.8 Up 06:49:07 - 07:19:07 -594
La Pine/Gilchrist 07:04:08 -21.6 Dark Up 35.6 160.7 Up 06:49:08 - 07:19:08 -608
North Lake 07:04:06 -22.1 Dark Up 36.2 161.3 Up 06:49:06 - 07:19:06 -636
Paisley 07:04:06 -22.7 Dark Up 36.8 161.6 Up 06:49:06 - 07:19:06 -673
Chiloquin 07:04:10 -22.6 Dark Up 36.6 160.0 Up 06:49:10 - 07:19:10 -685
Klamath Falls 07:04:10 -22.9 Dark Up 36.9 160.0 Up 06:49:10 - 07:19:10 -708
Lakeview 07:04:05 -23.3 Dark Up 37.3 161.7 Up 06:49:05 - 07:19:05 -708
Tulelake 07:04:09 -23.3 Dark Up 37.2 160.3 Up 06:49:09 - 07:19:09 -727
Cedarville 07:04:05 -23.9 Dark Up 38.0 161.8 Up 06:49:05 - 07:19:05 -754
Fall River/Burney 07:04:10 -24.1 Dark Up 38.1 160.2 Up 06:49:10 - 07:19:10 -791
Susanville 07:04:08 -24.9 Dark Up 38.9 160.9 Up 06:49:08 - 07:19:08 -835
Gimple 07:04:09 -25.1 Dark Up 39.1 160.6 Up 06:49:09 - 07:19:09 -856
Greenville 07:04:09 -25.1 Dark Up 39.1 160.5 Up 06:49:09 - 07:19:09 -856
Niwot 07:03:15 -26.9 Dark Up 41.1 180.5 Up 06:48:15 - 07:18:15 -856
SwRI 07:03:15 -27.0 Dark Up 41.2 180.3 Up 06:48:15 - 07:18:15 -864
Quincy 07:04:09 -25.3 Dark Up 39.3 160.4 Up 06:49:09 - 07:19:09 -871
Portola 07:04:08 -25.5 Dark Up 39.5 161.0 Up 06:49:08 - 07:19:08 -879
Reno 07:04:06 -25.9 Dark Up 39.9 161.7 Up 06:49:06 - 07:19:06 -897
Carson City 07:04:06 -26.3 Dark Up 40.3 161.6 Up 06:49:06 - 07:19:06 -924
Yerington 07:04:04 -26.6 Dark Up 40.6 162.4 Up 06:49:04 - 07:19:04 -938
Gardnerville 07:04:06 -26.5 Dark Up 40.5 161.6 Up 06:49:06 - 07:19:06 -942
Hawthorne 07:04:02 -27.1 Dark Up 41.2 162.9 Up 06:49:02 - 07:19:02 -972
Tonopah 07:03:58 -27.8 Dark Up 41.9 164.6 Up 06:48:58 - 07:18:58 -1005
Lee Vining 07:04:05 -27.6 Dark Up 41.6 162.2 Up 06:49:05 - 07:19:05 -1015
Bishop 07:04:02 -28.3 Dark Up 42.3 162.9 Up 06:49:02 - 07:19:02 -1060
Beatty 07:03:57 -29.0 Dark Up 43.1 164.9 Up 06:48:57 - 07:18:57 -1093
Indian Springs 07:03:53 -29.5 Dark Up 43.7 166.3 Up 06:48:53 - 07:18:53 -1118
Lone Pine 07:04:02 -29.1 Dark Up 43.2 163.1 Up 06:49:02 - 07:19:02 -1118
Henderson 07:03:51 -30.2 Dark Up 44.3 167.1 Up 06:48:51 - 07:18:51 -1159
Searchlight/Boulder City 07:03:51 -30.7 Dark Up 44.9 167.0 Up 06:48:51 - 07:18:51 -1205
Patrick 07:03:47 -31.0 Dark Up 45.1 168.4 Up 06:48:47 - 07:18:47 -1208
CPSLO 07:04:12 -29.8 Dark Up 43.7 159.4 Up 06:49:12 - 07:19:12 -1225
Kingman/Dolan Springs 07:03:48 -31.1 Dark Up 45.3 168.1 Up 06:48:48 - 07:18:48 -1226
Laughlin/Bullhead City 07:03:50 -31.1 Dark Up 45.2 167.4 Up 06:48:50 - 07:18:50 -1228
DCO 07:03:45 -31.3 Dark Up 45.5 169.4 Up 06:48:45 - 07:18:45 -1233
Mohave Valley 07:03:50 -31.4 Dark Up 45.5 167.4 Up 06:48:50 - 07:18:50 -1250
Lake Havasu City 07:03:49 -31.8 Dark Up 45.9 167.6 Up 06:48:49 - 07:18:49 -1282
Parker 07:03:49 -32.1 Dark Up 46.3 167.6 Up 06:48:49 - 07:18:49 -1311
Wildwood 07:04:05 -31.4 Dark Up 45.4 161.7 Up 06:49:05 - 07:19:05 -1319
Idyllwild 07:03:59 -32.1 Dark Up 46.2 164.2 Up 06:48:59 - 07:18:59 -1346
Blythe 07:03:51 -32.6 Dark Up 46.8 167.1 Up 06:48:51 - 07:18:51 -1354
Calipatria 07:03:54 -33.0 Dark Up 47.1 165.6 Up 06:48:54 - 07:18:54 -1395
Yuma 07:03:51 -33.5 Dark Up 47.6 166.8 Up 06:48:51 - 07:18:51 -1430

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 136120, (2026/07/02 07:03UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 36.13  56
Nunki          18:55:15.9 -26:17:49  2.0 17.77  23
Eps Sct        18:43:31.3 -08:16:31  4.9  0.56  30
PPM 202030     18:41:30.5 -08:31:29  8.5  0.37  30
PPM 202066     18:43:17.5 -08:50:25  9.5  0.19  29
136120         18:42:34.1 -08:47:10 15.1        30
Positions are for J2000

Event circumstances last updated at 2019/03/25 05:02:26 UT

Marc W. Buie, Southwest Research Institute

RECON