RECON: TNO occultation with 32929

Event between (32929) 95QY9 and star GA1140:00488594 with event index number of 2295062

Geocentric closest approach at 2026/10/04 07:23:56 UTC

J2000 position of star is 03:38:36.4 +24:22:20
Equinox of date position of star is 03:39:56.0 +24:26:38
Stellar brightness G=15.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 53 degrees from the moon. Moon is 42% illuminated.
TNO apparent brightness V=23.5

[RECON map]
TNO is 31.5 AU from the Sun and 30.8 AU from the Earth.
The TNO is moving 14.9 km/sec on the sky relative to the star, or, 2.4 arcsec/hr.
The 1-sigma error in the time of the event is 608 seconds.
The 1-sigma cross-track error in the shadow position is 2696 km.
The sky-plane scale is 22366.6 km/arcsec.

The TNO has an absolute magnitude Hv=8.4
Diameter=125.9 km assuming a 5% albedo -- 8.4 sec chord
Diameter=51.4 km assuming a 30% albedo -- 3.4 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 32929, (2026/10/04 07:24UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:27.5 +16:33:40  0.8 15.54  42
44Zet Per      03:55:49.3 +31:57:39  2.8  8.25  48
11 Tau         03:42:22.6 +25:24:50  6.1  1.08  52
PPM 092688     03:40:11.6 +24:41:15  8.5  0.23  53
32929          03:40:11.9 +24:27:29 15.5        52
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 1.5 sigma about the mid-time.
The median site spacing is 27.0 km RECON observability=1.0 and success probability=16.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 07:27:01 -43.5 Dark Up 43.5 105.1 Up 07:12:01 - 07:42:01 -797
Victoria 07:27:20 -45.2 Dark Up 42.1 100.5 Up 07:12:20 - 07:42:20 -885
Kelowna 07:27:03 -44.3 Dark Up 44.3 105.2 Up 07:12:03 - 07:42:03 -887
Peachland 07:27:04 -44.4 Dark Up 44.1 104.8 Up 07:12:04 - 07:42:04 -887
Summerland 07:27:04 -44.6 Dark Up 44.2 104.8 Up 07:12:04 - 07:42:04 -902
Penticton 07:27:04 -44.7 Dark Up 44.3 104.8 Up 07:12:04 - 07:42:04 -911
Oliver 07:27:06 -45.0 Dark Up 44.4 104.5 Up 07:12:06 - 07:42:06 -940
Anarchist Mountain Observatory 07:27:06 -45.2 Dark Up 44.6 104.5 Up 07:12:06 - 07:42:06 -959
Tonasket 07:27:08 -45.5 Dark Up 44.6 104.1 Up 07:12:08 - 07:42:08 -983
Okanogan 07:27:10 -45.8 Dark Up 44.6 103.7 Up 07:12:10 - 07:42:10 -1006
Brewster 07:27:11 -46.1 Dark Up 44.5 103.3 Up 07:12:11 - 07:42:11 -1023
Manson/Chelan 07:27:14 -46.2 Dark Up 44.3 102.7 Up 07:12:14 - 07:42:14 -1030
Sleaford 07:26:09 -41.8 Dark Up 51.1 121.4 Up 07:11:09 - 07:41:09 -1033
Wenatchee 07:27:17 -46.7 Dark Up 44.3 102.1 Up 07:12:17 - 07:42:17 -1065
Ellensburg 07:27:19 -47.1 Dark Up 44.3 101.6 Up 07:12:19 - 07:42:19 -1093
Yakima 07:27:21 -47.5 Dark Up 44.3 101.2 Up 07:12:21 - 07:42:21 -1127
Toppenish/White Swan 07:27:22 -47.7 Dark Up 44.5 101.1 Up 07:12:22 - 07:42:22 -1150
Goldendale 07:27:26 -48.2 Dark Up 44.3 100.2 Up 07:12:26 - 07:42:26 -1185
The Dalles 07:27:28 -48.4 Dark Up 44.1 99.7 Up 07:12:28 - 07:42:28 -1193
PNWRO 07:27:19 -48.2 Dark Up 45.6 102.0 Up 07:12:19 - 07:42:19 -1225
Maupin 07:27:29 -48.8 Dark Up 44.3 99.4 Up 07:12:29 - 07:42:29 -1232
Sisters 07:27:35 -49.6 Dark Up 44.1 98.2 Up 07:12:35 - 07:42:35 -1292
Bend 07:27:35 -49.9 Dark Up 44.3 98.2 Up 07:12:35 - 07:42:35 -1321
Oregon Observatory 07:27:36 -50.1 Dark Up 44.2 97.9 Up 07:12:36 - 07:42:36 -1332
North Lake 07:27:38 -50.8 Dark Up 44.7 97.7 Up 07:12:38 - 07:42:38 -1404
Chiloquin 07:27:44 -51.3 Dark Up 44.1 96.3 Up 07:12:44 - 07:42:44 -1433
Klamath Falls 07:27:45 -51.6 Dark Up 44.2 96.1 Up 07:12:45 - 07:42:45 -1466
Lakeview 07:27:40 -51.9 Dark Up 45.3 97.1 Up 07:12:40 - 07:42:40 -1514
Cedarville 07:27:43 -52.5 Dark Up 45.5 96.6 Up 07:12:43 - 07:42:43 -1579
Fall River/Burney 07:27:49 -52.9 Dark Up 44.6 95.2 Up 07:12:49 - 07:42:49 -1583
Susanville 07:27:49 -53.6 Dark Up 45.2 95.1 Up 07:12:49 - 07:42:49 -1663
Greenville 07:27:51 -53.8 Dark Up 45.0 94.6 Up 07:12:51 - 07:42:51 -1679
Gimple 07:27:51 -53.8 Dark Up 45.1 94.7 Up 07:12:51 - 07:42:51 -1682
Quincy 07:27:52 -54.0 Dark Up 45.1 94.4 Up 07:12:52 - 07:42:52 -1697
Portola 07:27:51 -54.2 Dark Up 45.4 94.6 Up 07:12:51 - 07:42:51 -1724
Reno 07:27:50 -54.5 Dark Up 46.0 94.8 Up 07:12:50 - 07:42:50 -1769
Carson City 07:27:51 -54.9 Dark Up 46.0 94.5 Up 07:12:51 - 07:42:51 -1803
Gardnerville 07:27:52 -55.2 Dark Up 46.1 94.2 Up 07:12:52 - 07:42:52 -1827
Yerington 07:27:50 -55.2 Dark Up 46.5 94.7 Up 07:12:50 - 07:42:50 -1841
Hawthorne 07:27:50 -55.7 Dark Up 47.0 94.6 Up 07:12:50 - 07:42:50 -1901
Lee Vining 07:27:54 -56.2 Dark Up 46.6 93.7 Up 07:12:54 - 07:42:54 -1938
Tonopah 07:27:47 -56.3 Dark Up 48.1 95.0 Up 07:12:47 - 07:42:47 -1991
Bishop 07:27:53 -56.9 Dark Up 47.2 93.5 Up 07:12:53 - 07:42:53 -2017
Beatty 07:27:49 -57.4 Dark Up 48.6 94.1 Up 07:12:49 - 07:42:49 -2115
Dunrhomin 07:26:49 -53.2 Dark Up 56.7 107.6 Up 07:11:49 - 07:41:49 -2138
CU-SBO 07:26:51 -53.4 Dark Up 56.7 107.2 Up 07:11:51 - 07:41:51 -2160
Indian Springs 07:27:47 -57.8 Dark Up 49.4 94.4 Up 07:12:47 - 07:42:47 -2181
Henderson 07:27:46 -58.3 Dark Up 50.0 94.2 Up 07:12:46 - 07:42:46 -2254
Wildwood 07:28:06 -60.1 Dark Up 47.2 89.9 Up 07:13:06 - 07:43:06 -2321
Patrick 07:27:43 -59.0 Dark Up 51.0 94.2 Up 07:12:43 - 07:42:43 -2351
Laughlin/Bullhead City 07:27:47 -59.2 Dark Up 50.4 93.4 Up 07:12:47 - 07:42:47 -2352
Kingman/Dolan Springs 07:27:45 -59.2 Dark Up 50.8 93.8 Up 07:12:45 - 07:42:45 -2366
Mohave Valley 07:27:48 -59.5 Dark Up 50.5 93.1 Up 07:12:48 - 07:42:48 -2378
Idyllwild 07:28:01 -60.6 Dark Up 48.8 90.5 Up 07:13:01 - 07:43:01 -2419
Lake Havasu City 07:27:48 -59.9 Dark Up 50.7 92.8 Up 07:12:48 - 07:42:48 -2425
Parker 07:27:50 -60.2 Dark Up 50.7 92.4 Up 07:12:50 - 07:42:50 -2461
Calipatria 07:27:58 -61.3 Dark Up 49.8 90.5 Up 07:12:58 - 07:42:58 -2519
George/Scottsdale 07:27:41 -60.6 Dark Up 52.7 93.3 Up 07:12:41 - 07:42:41 -2581
Yuma 07:27:56 -61.7 Dark Up 50.5 90.4 Up 07:12:56 - 07:42:56 -2591

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 32929, (2026/10/04 07:24UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 15.54  42
44Zet Per      03:54:07.9 +31:53:01  2.8  8.25  48
11 Tau         03:40:46.3 +25:19:46  6.1  1.08  52
PPM 092688     03:38:35.9 +24:36:06  8.5  0.23  53
32929          03:38:36.4 +24:22:20 15.5        53
Positions are for J2000

Event circumstances last updated at 2022/04/22 23:08:14 UT

Marc W. Buie, Southwest Research Institute

RECON