RECON: TNO occultation with 126155

Event between (126155) 01YJ140 and star GA1040:03281103 with event index number of 1746398

Geocentric closest approach at 2027/03/05 10:22:37 UTC

J2000 position of star is 09:18:46.8 +15:49:26
Equinox of date position of star is 09:19:55.1 +15:44:11
Stellar brightness G=15.2, use SENSEUP=128
Star is 174 degrees from the moon. Moon is 8% illuminated.
TNO apparent brightness V=24.9

[RECON map]
TNO is 30.3 AU from the Sun and 29.4 AU from the Earth.
The TNO is moving 21.1 km/sec on the sky relative to the star, or, 3.6 arcsec/hr.
The 1-sigma error in the time of the event is 219 seconds.
The 1-sigma cross-track error in the shadow position is 2863 km.
The sky-plane scale is 21308.8 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=208.9 km assuming a 5% albedo -- 2.9 sec chord
Diameter=85.3 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 126155, (2027/03/05 10:23UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:49.1 +11:50:00  1.3 12.63 161
PPM 126361     09:22:45.2 +15:15:16  6.4  0.75 173
PPM 126342     09:21:31.7 +15:49:16  8.9  0.32 174
PPM 126307     09:19:52.1 +15:48:03 11.3  0.14 174
126155         09:20:17.0 +15:42:29 15.2       174
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 4.1 sigma about the mid-time.
The median site spacing is 12.0 km RECON observability=1.0 and success probability=10.7%
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 10:20:50 -37.9 Dark Down 31.7 256.1 Up 10:05:50 - 10:35:50 325
Kelowna 10:20:49 -38.3 Dark Down 31.9 256.2 Up 10:05:49 - 10:35:49 299
Peachland 10:20:49 -38.5 Dark Down 32.1 256.0 Up 10:05:49 - 10:35:49 284
Summerland 10:20:48 -38.5 Dark Down 32.1 256.1 Up 10:05:48 - 10:35:48 278
Penticton 10:20:48 -38.5 Dark Down 32.0 256.3 Up 10:05:48 - 10:35:48 277
Oliver 10:20:46 -38.8 Dark Down 32.1 256.5 Up 10:05:46 - 10:35:46 256
Anarchist Mountain Observatory 10:20:45 -38.8 Dark Down 32.0 256.7 Up 10:05:45 - 10:35:45 252
Tonasket 10:20:44 -39.1 Dark Down 32.1 256.9 Up 10:05:44 - 10:35:44 231
Okanogan 10:20:42 -39.4 Dark Down 32.3 256.9 Up 10:05:42 - 10:35:42 206
Brewster 10:20:42 -39.7 Dark Down 32.5 256.9 Up 10:05:42 - 10:35:42 184
Manson/Chelan 10:20:41 -40.0 Dark Down 32.8 256.8 Up 10:05:41 - 10:35:41 162
Entiat 10:20:41 -40.2 Dark Down 32.9 256.8 Up 10:05:41 - 10:35:41 146
Wenatchee 10:20:40 -40.4 Dark Down 33.0 256.9 Up 10:05:40 - 10:35:40 127
Victoria 10:20:50 -41.0 Dark Down 34.7 253.6 Up 10:05:50 - 10:35:50 112
Ellensburg 10:20:38 -40.8 Dark Down 33.3 257.0 Up 10:05:38 - 10:35:38 96
Pasco 10:20:33 -40.7 Dark Down 32.5 258.6 Up 10:05:33 - 10:35:33 88
Niwot 10:19:49 -36.0 Dark Down 23.0 271.7 Low 10:04:49 - 10:34:49 87
PNWRO 10:20:31 -40.8 Dark Down 32.4 258.9 Up 10:05:31 - 10:35:31 79
SwRI 10:19:49 -36.1 Dark Down 23.0 271.7 Low 10:04:49 - 10:34:49 77
Yakima 10:20:37 -41.2 Dark Down 33.4 257.2 Up 10:05:37 - 10:35:37 69
Toppenish/White Swan 10:20:35 -41.2 Dark Down 33.3 257.5 Up 10:05:35 - 10:35:35 60
Goldendale 10:20:34 -41.8 Dark Down 33.7 257.5 Up 10:05:34 - 10:35:34 12
The Dalles 10:20:34 -42.2 Dark Down 34.0 257.3 Up 10:05:34 - 10:35:34 -13
Maupin 10:20:32 -42.4 Dark Down 34.0 257.7 Up 10:05:32 - 10:35:32 -37
Redmond 10:20:28 -43.1 Dark Down 34.3 258.2 Up 10:05:28 - 10:35:28 -100
Sisters 10:20:29 -43.3 Dark Down 34.6 257.9 Up 10:05:29 - 10:35:29 -110
Bend 10:20:27 -43.4 Dark Down 34.5 258.2 Up 10:05:27 - 10:35:27 -118
Oregon Observatory 10:20:27 -43.5 Dark Down 34.6 258.3 Up 10:05:27 - 10:35:27 -134
La Pine/Gilchrist 10:20:26 -43.7 Dark Down 34.7 258.3 Up 10:05:26 - 10:35:26 -150
North Lake 10:20:23 -43.7 Dark Down 34.3 259.1 Up 10:05:23 - 10:35:23 -161
Paisley 10:20:21 -43.9 Dark Down 34.2 259.7 Up 10:05:21 - 10:35:21 -189
Lakeview 10:20:18 -44.2 Dark Down 34.1 260.2 Up 10:05:18 - 10:35:18 -218
Klamath Falls 10:20:21 -44.9 Dark Down 35.2 259.1 Up 10:05:21 - 10:35:21 -259
Cedarville 10:20:15 -44.5 Dark Down 34.1 260.8 Up 10:05:15 - 10:35:15 -259
Fall River/Burney 10:20:16 -45.5 Dark Down 35.1 260.2 Up 10:05:16 - 10:35:16 -331
Susanville 10:20:12 -45.6 Dark Down 34.7 261.2 Up 10:05:12 - 10:35:12 -353
Gimple 10:20:11 -45.9 Dark Down 34.9 261.2 Up 10:05:11 - 10:35:11 -380
Greenville 10:20:11 -45.9 Dark Down 34.9 261.1 Up 10:05:11 - 10:35:11 -382
Reno 10:20:07 -45.7 Dark Down 34.2 262.3 Up 10:05:07 - 10:35:07 -390
Portola 10:20:09 -45.9 Dark Down 34.6 261.7 Up 10:05:09 - 10:35:09 -391
Quincy 10:20:10 -46.0 Dark Down 35.0 261.3 Up 10:05:10 - 10:35:10 -397
Yerington 10:20:04 -45.6 Dark Down 33.8 263.2 Up 10:05:04 - 10:35:04 -410
Carson City 10:20:06 -45.9 Dark Down 34.2 262.6 Up 10:05:06 - 10:35:06 -416
Tonopah 10:19:56 -45.0 Dark Down 32.4 265.1 Up 10:04:56 - 10:34:56 -417
Hawthorne 10:20:01 -45.6 Dark Down 33.4 263.8 Up 10:05:01 - 10:35:01 -428
Gardnerville 10:20:04 -46.0 Dark Down 34.2 262.8 Up 10:05:04 - 10:35:04 -432
Indian Springs 10:19:48 -44.9 Dark Down 31.3 266.9 Up 10:04:48 - 10:34:48 -479
Lee Vining 10:19:59 -46.3 Dark Down 33.8 263.9 Up 10:04:59 - 10:34:59 -485
Beatty 10:19:51 -45.4 Dark Down 32.1 266.1 Up 10:04:51 - 10:34:51 -489
Henderson 10:19:45 -44.7 Dark Down 30.7 267.7 Up 10:04:45 - 10:34:45 -497
Bishop 10:19:56 -46.2 Dark Down 33.3 264.7 Up 10:04:56 - 10:34:56 -507
Patrick 10:19:41 -44.3 Dark Down 29.9 268.7 Low 10:04:41 - 10:34:41 -509
DCO 10:19:38 -44.0 Dark Down 29.3 269.3 Low 10:04:38 - 10:34:38 -509
Kingman/Dolan Springs 10:19:40 -44.5 Dark Down 30.0 268.7 Up 10:04:40 - 10:34:40 -532
Searchlight/Boulder City 10:19:43 -45.0 Dark Down 30.7 268.1 Up 10:04:43 - 10:34:43 -538
Laughlin/Bullhead City 10:19:41 -44.9 Dark Down 30.5 268.4 Up 10:04:41 - 10:34:41 -550
Mohave Valley 10:19:40 -45.1 Dark Down 30.5 268.6 Up 10:04:40 - 10:34:40 -571
George/Scottsdale 10:19:32 -43.7 Dark Down 28.2 270.8 Low 10:04:32 - 10:34:32 -574
Lake Havasu City 10:19:38 -45.1 Dark Down 30.3 269.0 Up 10:04:38 - 10:34:38 -594
Parker 10:19:37 -45.2 Dark Down 30.3 269.2 Up 10:04:37 - 10:34:37 -620
Blythe 10:19:35 -45.7 Dark Down 30.5 269.3 Up 10:04:35 - 10:34:35 -671
Idyllwild 10:19:39 -47.2 Dark Down 32.3 268.1 Up 10:04:39 - 10:34:39 -731
CPSLO 10:19:53 -48.9 Dark Down 35.4 264.7 Up 10:04:53 - 10:34:53 -739
Calipatria 10:19:35 -46.7 Dark Down 31.3 269.1 Up 10:04:35 - 10:34:35 -740
Yuma 10:19:32 -46.2 Dark Down 30.6 269.8 Up 10:04:32 - 10:34:32 -745
Wildwood 10:19:44 -48.3 Dark Down 33.8 266.7 Up 10:04:44 - 10:34:44 -766

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 126155, (2027/03/05 10:23UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:22.0 +11:58:02  1.3 12.63 161
PPM 126361     09:21:15.3 +15:22:17  6.4  0.75 173
PPM 126342     09:20:01.5 +15:56:14  8.9  0.32 174
PPM 126307     09:18:21.9 +15:54:58 11.3  0.14 174
126155         09:18:46.8 +15:49:26 15.2       174
Positions are for J2000

Event circumstances last updated at 2020/07/27 22:38:16 UT

Marc W. Buie, Southwest Research Institute

RECON