RECON: TNO occultation with 149349

Event between (149349) 02VA131 and star GA1080:00553234 with event index number of 1641027

Geocentric closest approach at 2026/12/22 08:28:21 UTC

J2000 position of star is 04:23:01.0 +18:39:25
Equinox of date position of star is 04:24:25.3 +18:42:42
Stellar brightness G=13.5, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 8 degrees from the moon. Moon is 95% illuminated.
Apparent brightness V=22.1

[RECON map]
Object is 34.6 AU from the Sun and 33.7 AU from the Earth.
Apparent velocity is 22.4 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 165 seconds.
The 1-sigma cross-track error in the shadow position is 1278 km.
The sky-plane scale is 24472.8 km/arcsec.

The object has an absolute magnitude Hv=6.7
Diameter=302.0 km assuming a 5% albedo -- 12.1 sec chord
Diameter=123.3 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is 5:3EE
 
 
 
 
 
 

Star training set for 149349, (2026/12/22 08:47UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:28.3 +16:33:42  0.8  3.75  11
44Zet Per      03:55:50.1 +31:57:41  2.8 14.74   7
PPM 119867     04:26:31.6 +19:06:07  6.4  0.60   8
PPM 119815     04:23:06.3 +18:28:46  7.4  0.42   8
PPM 119829     04:24:10.5 +18:53:52 11.7  0.20   8
149349         04:24:35.1 +18:43:05 13.5         8
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 5.0 sigma about the mid-time.
The median site spacing is 35.3 km RECON observability=1.0 and success probability=73.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:25:50 -57.2 Dark Up 41.2 244.4 Up 08:11:34 - 08:40:05 331
Kamloops 08:26:23 -62.3 Dark Up 49.5 229.4 Up 08:12:08 - 08:40:39 129
Kelowna 08:26:20 -62.9 Dark Up 49.5 231.2 Up 08:12:04 - 08:40:35 52
Peachland 08:26:21 -63.1 Dark Up 49.8 231.0 Up 08:12:05 - 08:40:36 41
Summerland 08:26:20 -63.2 Dark Up 49.8 231.2 Up 08:12:04 - 08:40:35 26
Penticton 08:26:20 -63.3 Dark Up 49.8 231.4 Up 08:12:04 - 08:40:35 20
Oliver 08:26:19 -63.6 Dark Up 50.0 231.8 Up 08:12:04 - 08:40:35 -15
Anarchist Mountain Observatory 08:26:18 -63.7 Dark Up 50.0 232.2 Up 08:12:03 - 08:40:34 -31
Victoria 08:26:29 -64.8 Dark Up 52.4 227.5 Up 08:12:14 - 08:40:45 -84
Okanogan 08:26:18 -64.4 Dark Up 50.5 232.5 Up 08:12:03 - 08:40:34 -95
Brewster 08:26:19 -64.7 Dark Up 50.8 232.5 Up 08:12:03 - 08:40:34 -122
Manson/Chelan 08:26:19 -65.0 Dark Up 51.1 232.2 Up 08:12:04 - 08:40:35 -143
Wenatchee 08:26:19 -65.4 Dark Up 51.5 232.5 Up 08:12:04 - 08:40:35 -191
Ellensburg 08:26:19 -65.9 Dark Up 51.9 232.6 Up 08:12:04 - 08:40:35 -232
Yakima 08:26:19 -66.3 Dark Up 52.1 233.0 Up 08:12:04 - 08:40:35 -273
Toppenish/White Swan 08:26:18 -66.5 Dark Up 52.2 233.5 Up 08:12:03 - 08:40:34 -294
PNWRO 08:26:13 -66.5 Dark Up 51.6 235.7 Up 08:11:58 - 08:40:29 -328
The Dalles 08:26:20 -67.4 Dark Up 53.1 233.3 Up 08:12:04 - 08:40:35 -374
Maupin 08:26:19 -67.7 Dark Up 53.3 233.9 Up 08:12:04 - 08:40:35 -416
Sisters 08:26:20 -68.7 Dark Up 54.1 234.2 Up 08:12:04 - 08:40:35 -506
Bend 08:26:19 -68.9 Dark Up 54.1 234.8 Up 08:12:03 - 08:40:34 -530
Oregon Observatory 08:26:19 -69.1 Dark Up 54.2 234.8 Up 08:12:03 - 08:40:34 -548
Chiloquin 08:26:19 -70.4 Dark Up 55.2 235.8 Up 08:12:03 - 08:40:34 -683
Klamath Falls 08:26:18 -70.7 Dark Up 55.4 236.4 Up 08:12:03 - 08:40:34 -719
Cedarville 08:26:12 -71.0 Dark Up 54.7 239.2 Up 08:11:57 - 08:40:28 -788
Dunrhomin 08:25:26 -65.3 Dark Up 44.9 255.4 Up 08:11:11 - 08:39:42 -832
Fall River/Burney 08:26:16 -71.8 Dark Up 55.8 238.3 Up 08:12:01 - 08:40:32 -841
Nikitin 08:25:26 -65.4 Dark Up 45.0 255.6 Up 08:11:11 - 08:39:42 -851
CU-SBO 08:25:26 -65.5 Dark Up 45.0 255.6 Up 08:11:11 - 08:39:42 -859
Greenville 08:26:14 -72.6 Dark Up 56.0 240.0 Up 08:11:58 - 08:40:29 -935
Gimple 08:26:13 -72.5 Dark Up 55.9 240.1 Up 08:11:58 - 08:40:29 -935
Quincy 08:26:13 -72.7 Dark Up 56.1 240.2 Up 08:11:58 - 08:40:29 -956
Portola 08:26:12 -72.7 Dark Up 55.8 240.9 Up 08:11:56 - 08:40:27 -968
Reno 08:26:10 -72.8 Dark Up 55.5 242.0 Up 08:11:54 - 08:40:25 -995
Carson City 08:26:09 -73.1 Dark Up 55.6 242.5 Up 08:11:54 - 08:40:25 -1032
Yerington 08:26:07 -73.1 Dark Up 55.3 243.5 Up 08:11:51 - 08:40:22 -1051
Gardnerville 08:26:09 -73.3 Dark Up 55.7 242.9 Up 08:11:53 - 08:40:24 -1058
Hawthorne 08:26:05 -73.3 Dark Up 55.1 244.7 Up 08:11:49 - 08:40:20 -1099
Lee Vining 08:26:06 -74.0 Dark Up 55.7 244.9 Up 08:11:50 - 08:40:21 -1160
Bishop 08:26:03 -74.3 Dark Up 55.5 246.5 Up 08:11:47 - 08:40:18 -1221
Beatty 08:25:57 -74.0 Dark Up 54.4 248.7 Up 08:11:42 - 08:40:13 -1265
Patrick 08:25:46 -73.6 Dark Up 52.8 253.3 Up 08:11:31 - 08:40:02 -1410
Laughlin/Bullhead City 08:25:48 -74.2 Dark Up 53.4 253.0 Up 08:11:32 - 08:40:03 -1440
Lake Havasu City 08:25:47 -74.5 Dark Up 53.4 254.1 Up 08:11:31 - 08:40:02 -1511
Wildwood 08:26:01 -77.1 Dark Up 56.8 250.8 Up 08:11:46 - 08:40:17 -1573
George/Scottsdale 08:25:38 -73.4 Dark Up 51.6 257.1 Up 08:11:23 - 08:39:54 -1579
Idyllwild 08:25:54 -76.4 Dark Up 55.5 253.0 Up 08:11:39 - 08:40:10 -1604
Calipatria 08:25:50 -76.1 Dark Up 54.7 254.9 Up 08:11:34 - 08:40:05 -1665
Yuma 08:25:46 -75.8 Dark Up 54.1 256.2 Up 08:11:31 - 08:40:02 -1707

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 149349, (2026/12/22 08:47UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8  3.75  11
44Zet Per      03:54:07.9 +31:53:01  2.8 14.74   7
PPM 119867     04:24:57.3 +19:02:31  6.4  0.60   8
PPM 119815     04:21:32.4 +18:25:03  7.4  0.42   8
PPM 119829     04:22:36.3 +18:50:11 11.7  0.20   8
149349         04:23:01.0 +18:39:25 13.5         8
Positions are for J2000

Event circumstances last updated at 2024/02/24 04:10:54 UT

Marc W. Buie, Southwest Research Institute

RECON