RECON: TNO occultation with 32929

Event between (32929) 95QY9 and star GA1120:00412249 with event index number of 2295030

Geocentric closest approach at 2025/10/30 06:52:51 UTC

J2000 position of star is 03:26:37.4 +23:41:16
Equinox of date position of star is 03:27:56.2 +23:45:52
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 101 degrees from the moon. Moon is 56% illuminated.
TNO apparent brightness V=23.4

[RECON map]
TNO is 31.3 AU from the Sun and 30.4 AU from the Earth.
The TNO is moving 22.8 km/sec on the sky relative to the star, or, 3.7 arcsec/hr.
The 1-sigma error in the time of the event is 318 seconds.
The 1-sigma cross-track error in the shadow position is 2910 km.
The sky-plane scale is 22044.5 km/arcsec.

The TNO has an absolute magnitude Hv=8.4
Diameter=125.9 km assuming a 5% albedo -- 5.5 sec chord
Diameter=51.4 km assuming a 30% albedo -- 2.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 32929, (2025/10/30 06:53UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:24.3 +16:33:33  0.8 17.76 115
44Zet Per      03:55:45.7 +31:57:29  2.8 10.20 109
64 Ari         03:25:50.3 +24:48:49  5.5  1.16 101
66 Ari         03:29:57.5 +22:53:30  7.2  0.98 101
PPM 092520     03:29:21.3 +24:16:15  8.9  0.57 102
PPM 092494     03:27:13.3 +23:47:43 10.6  0.21 101
32929          03:28:08.8 +23:46:36 13.5       102
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 2.8 sigma about the mid-time.
The median site spacing is 25.7 km RECON observability=1.0 and success probability=12.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 06:53:51 -51.8 Dark Up 54.6 128.5 Up 06:38:51 - 07:08:51 4507
Kelowna 06:53:51 -52.7 Dark Up 55.5 128.8 Up 06:38:51 - 07:08:51 4414
Peachland 06:53:51 -52.8 Dark Up 55.4 128.2 Up 06:38:51 - 07:08:51 4413
Victoria 06:54:00 -53.0 Dark Up 54.2 122.1 Up 06:39:00 - 07:09:00 4411
Summerland 06:53:51 -52.9 Dark Up 55.6 128.2 Up 06:38:51 - 07:08:51 4398
Penticton 06:53:51 -53.0 Dark Up 55.7 128.3 Up 06:38:51 - 07:08:51 4389
Oliver 06:53:53 -53.4 Dark Up 55.9 127.9 Up 06:38:53 - 07:08:53 4359
Anarchist Mountain Observatory 06:53:52 -53.6 Dark Up 56.1 127.9 Up 06:38:52 - 07:08:52 4339
Tonasket 06:53:53 -53.8 Dark Up 56.3 127.5 Up 06:38:53 - 07:08:53 4314
Okanogan 06:53:55 -54.1 Dark Up 56.4 126.9 Up 06:38:55 - 07:08:55 4289
Sleaford 06:53:09 -51.8 Dark Down 59.2 151.5 Up 06:38:09 - 07:08:09 4287
Brewster 06:53:56 -54.3 Dark Up 56.4 126.3 Up 06:38:56 - 07:08:56 4271
Manson/Chelan 06:53:57 -54.4 Dark Up 56.4 125.5 Up 06:38:57 - 07:08:57 4263
Wenatchee 06:53:59 -54.8 Dark Up 56.6 124.7 Up 06:38:59 - 07:08:59 4227
Ellensburg 06:54:00 -55.2 Dark Up 56.7 123.9 Up 06:39:00 - 07:09:00 4197
Yakima 06:54:00 -55.5 Dark Up 56.9 123.4 Up 06:39:00 - 07:09:00 4162
Toppenish/White Swan 06:54:00 -55.8 Dark Up 57.1 123.3 Up 06:39:00 - 07:09:00 4138
Goldendale 06:54:00 -56.2 Dark Up 57.1 122.1 Up 06:39:00 - 07:09:00 4103
The Dalles 06:54:00 -56.3 Dark Up 57.0 121.3 Up 06:39:00 - 07:09:00 4095
PNWRO 06:53:59 -56.5 Dark Up 58.2 124.9 Up 06:38:59 - 07:08:59 4062
Maupin 06:54:00 -56.7 Dark Up 57.3 120.9 Up 06:39:00 - 07:09:00 4056
Sisters 06:54:00 -57.3 Dark Up 57.5 119.1 Up 06:39:00 - 07:09:00 3997
Bend 06:54:00 -57.6 Dark Up 57.7 119.1 Up 06:39:00 - 07:09:00 3967
Oregon Observatory 06:54:00 -57.7 Dark Up 57.7 118.7 Up 06:39:00 - 07:09:00 3957
North Lake 06:54:00 -58.5 Dark Up 58.4 118.4 Up 06:39:00 - 07:09:00 3883
Chiloquin 06:54:00 -58.8 Dark Up 58.1 116.3 Up 06:39:00 - 07:09:00 3860
Klamath Falls 06:54:00 -59.1 Dark Up 58.3 115.9 Up 06:39:00 - 07:09:00 3828
Lakeview 06:54:00 -59.6 Dark Up 59.3 117.6 Up 06:39:00 - 07:09:00 3772
Cedarville 06:54:00 -60.3 Dark Up 59.7 116.8 Up 06:39:00 - 07:09:00 3708
Fall River/Burney 06:54:18 -60.3 Dark Up 59.1 114.7 Up 06:39:18 - 07:09:18 3688
Susanville 06:54:00 -61.1 Dark Up 59.8 114.5 Up 06:39:00 - 07:09:00 3630
Greenville 06:54:20 -61.3 Dark Up 59.8 113.8 Up 06:39:20 - 07:09:20 3590
Gimple 06:54:19 -61.3 Dark Up 59.8 113.9 Up 06:39:19 - 07:09:19 3587
Quincy 06:54:20 -61.5 Dark Up 59.9 113.5 Up 06:39:20 - 07:09:20 3571
Portola 06:54:19 -61.7 Dark Up 60.3 113.9 Up 06:39:19 - 07:09:19 3544
Reno 06:54:00 -62.2 Dark Up 60.8 114.1 Up 06:39:00 - 07:09:00 3522
Carson City 06:54:18 -62.5 Dark Up 61.0 113.6 Up 06:39:18 - 07:09:18 3464
Yerington 06:54:00 -62.9 Dark Up 61.5 114.0 Up 06:39:00 - 07:09:00 3447
Gardnerville 06:54:19 -62.8 Dark Up 61.1 113.3 Up 06:39:19 - 07:09:19 3439
Hawthorne 06:54:00 -63.5 Dark Up 62.0 113.8 Up 06:39:00 - 07:09:00 3385
Lee Vining 06:54:19 -63.9 Dark Up 62.0 112.4 Up 06:39:19 - 07:09:19 3326
Tonopah 06:54:00 -64.4 Dark Up 63.2 114.8 Up 06:39:00 - 07:09:00 3288
Bishop 06:54:18 -64.6 Dark Up 62.7 112.2 Up 06:39:18 - 07:09:18 3245
Beatty 06:54:00 -65.6 Dark Up 64.0 113.2 Up 06:39:00 - 07:09:00 3165
Dunrhomin 06:53:28 -63.6 Dark Down 69.4 139.0 Up 06:38:28 - 07:08:28 3146
CU-SBO 06:53:29 -63.8 Dark Down 69.5 138.4 Up 06:38:29 - 07:08:29 3124
Indian Springs 06:54:00 -66.2 Dark Up 65.0 114.0 Up 06:39:00 - 07:09:00 3093
Henderson 06:54:00 -66.9 Dark Up 65.7 113.8 Up 06:39:00 - 07:09:00 3016
Wildwood 06:54:26 -67.5 Dark Up 63.6 105.9 Up 06:39:26 - 07:09:26 2934
Laughlin/Bullhead City 06:54:00 -67.8 Dark Up 66.3 112.5 Up 06:39:00 - 07:09:00 2918
Patrick 06:54:00 -67.7 Dark Up 66.8 114.0 Up 06:39:00 - 07:09:00 2916
Kingman/Dolan Springs 06:54:00 -67.9 Dark Up 66.7 113.3 Up 06:39:00 - 07:09:00 2901
Mohave Valley 06:54:00 -68.1 Dark Up 66.4 112.0 Up 06:39:00 - 07:09:00 2892
Lake Havasu City 06:54:00 -68.5 Dark Up 66.8 111.4 Up 06:39:00 - 07:09:00 2845
Idyllwild 06:54:20 -68.5 Dark Up 65.2 107.1 Up 06:39:20 - 07:09:20 2836
Parker 06:54:00 -68.9 Dark Up 66.9 110.7 Up 06:39:00 - 07:09:00 2810
Calipatria 06:54:18 -69.5 Dark Up 66.3 107.1 Up 06:39:18 - 07:09:18 2736
Yuma 06:54:00 -70.1 Dark Up 67.1 107.1 Up 06:39:00 - 07:09:00 2688
George/Scottsdale 06:54:00 -69.8 Dark Up 69.0 112.9 Up 06:39:00 - 07:09:00 2680

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, (2025/10/30 06:53UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 17.76 115
44Zet Per      03:54:07.9 +31:53:01  2.8 10.20 109
64 Ari         03:24:18.5 +24:43:25  5.5  1.16 101
66 Ari         03:28:26.6 +22:48:13  7.2  0.98 101
PPM 092520     03:27:49.6 +24:10:58  8.9  0.57 102
PPM 092494     03:25:41.9 +23:42:21 10.6  0.21 101
32929          03:26:37.4 +23:41:16 13.5       101
Positions are for J2000

Event circumstances last updated at 2022/04/10 23:11:37 UT

Marc W. Buie, Southwest Research Institute

RECON