RECON: TNO occultation with 14NX65

Event between 14NX65 and star GA0900:00173687 with event index number of 1512296

Geocentric closest approach at 2025/09/30 07:24:44 UTC

J2000 position of star is 02:05:19.7 +00:54:38
Equinox of date position of star is 02:06:19.7 +01:00:10
Stellar brightness G=13.4, use SENSEUP=32
Star is 107 degrees from the moon. Moon is 53% illuminated.
TNO apparent brightness V=22.7

[RECON map]
TNO is 20.1 AU from the Sun and 19.2 AU from the Earth.
The TNO is moving 20.8 km/sec on the sky relative to the star, or, 5.4 arcsec/hr.
The 1-sigma error in the time of the event is 372 seconds.
The 1-sigma cross-track error in the shadow position is 4974 km.
The sky-plane scale is 13908.1 km/arcsec.

The TNO has an absolute magnitude Hv=9.6
Diameter=71.8 km assuming a 5% albedo -- 3.5 sec chord
Diameter=29.3 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14NX65, (2025/09/30 07:25UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:24.0 +16:33:33  0.8 40.22 147
68Omi Cet      02:20:38.9 -02:51:42  2.0  5.23 108
60 Cet         02:04:31.0 +00:15:05  5.4  0.95 106
PPM 145295     02:08:08.0 +01:33:50  8.4  0.65 108
PPM 145281     02:07:08.3 +00:56:54  9.7  0.15 107
14NX65         02:06:39.2 +01:01:58 13.4       108
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 2.4 sigma about the mid-time.
The median site spacing is 12.7 km RECON observability=1.0 and success probability=5.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 07:24:42 -42.8 Dark Down 34.7 142.3 Up 07:09:42 - 07:39:42 5420
Summerland 07:24:43 -43.1 Dark Down 34.8 141.8 Up 07:09:43 - 07:39:43 5412
Penticton 07:24:43 -43.1 Dark Down 34.9 141.9 Up 07:09:43 - 07:39:43 5406
Okanagan Falls 07:24:44 -43.3 Dark Down 35.0 141.8 Up 07:09:44 - 07:39:44 5397
Oliver 07:24:44 -43.5 Dark Down 35.1 141.8 Up 07:09:44 - 07:39:44 5389
Anarchist Mountain Observatory 07:24:44 -43.7 Dark Down 35.4 141.9 Up 07:09:44 - 07:39:44 5375
Oroville 07:24:45 -43.7 Dark Down 35.4 141.8 Up 07:09:45 - 07:39:45 5373
Tonasket 07:24:46 -44.0 Dark Down 35.6 141.7 Up 07:09:46 - 07:39:46 5361
Okanogan 07:24:47 -44.3 Dark Down 35.8 141.4 Up 07:09:47 - 07:39:47 5348
Brewster 07:24:49 -44.5 Dark Down 35.9 141.0 Up 07:09:49 - 07:39:49 5340
Manson/Chelan 07:24:50 -44.7 Dark Down 35.9 140.5 Up 07:09:50 - 07:39:50 5339
Entiat 07:24:51 -44.9 Dark Down 36.1 140.4 Up 07:09:51 - 07:39:51 5329
Wenatchee 07:24:53 -45.2 Dark Down 36.2 140.1 Up 07:09:53 - 07:39:53 5319
Ellensburg 07:24:55 -45.5 Dark Down 36.4 139.7 Up 07:09:55 - 07:39:55 5303
Yakima 07:24:56 -45.9 Dark Down 36.7 139.5 Up 07:09:56 - 07:39:56 5282
Toppenish/White Swan 07:24:56 -46.2 Dark Down 37.0 139.6 Up 07:09:56 - 07:39:56 5265
Goldendale 07:24:59 -46.7 Dark Down 37.2 138.8 Up 07:09:59 - 07:39:59 5247
The Dalles 07:25:01 -46.8 Dark Down 37.2 138.3 Up 07:10:01 - 07:40:01 5245
Pasco 07:24:53 -46.4 Dark Down 37.6 140.9 Up 07:09:53 - 07:39:53 5224
Maupin 07:25:02 -47.3 Dark Down 37.6 138.2 Up 07:10:02 - 07:40:02 5219
George/Umatilla 07:24:55 -46.7 Dark Down 37.8 140.5 Up 07:09:55 - 07:39:55 5211
PNWRO 07:24:53 -46.7 Dark Down 37.9 141.1 Up 07:09:53 - 07:39:53 5204
Madras/Culver 07:25:04 -47.8 Dark Down 38.0 137.9 Up 07:10:04 - 07:40:04 5190
Sisters 07:25:07 -48.1 Dark Down 38.0 137.3 Up 07:10:07 - 07:40:07 5183
Redmond 07:25:05 -48.2 Dark Down 38.2 137.7 Up 07:10:05 - 07:40:05 5171
Bend 07:25:07 -48.3 Dark Down 38.3 137.4 Up 07:10:07 - 07:40:07 5163
Oregon Observatory 07:25:08 -48.5 Dark Down 38.4 137.2 Up 07:10:08 - 07:40:08 5156
La Pine/Gilchrist 07:25:08 -48.7 Dark Down 38.5 137.0 Up 07:10:08 - 07:40:08 5146
North Lake 07:25:08 -49.2 Dark Down 39.1 137.5 Up 07:10:08 - 07:40:08 5104
Chiloquin 07:25:13 -49.7 Dark Down 39.1 136.0 Up 07:10:13 - 07:40:13 5092
Klamath Falls 07:25:14 -50.1 Dark Down 39.4 135.9 Up 07:10:14 - 07:40:14 5069
Paisley 07:25:09 -49.8 Dark Down 39.7 137.6 Up 07:10:09 - 07:40:09 5061
Tulelake 07:25:14 -50.4 Dark Down 39.8 136.1 Up 07:10:14 - 07:40:14 5044
Lakeview 07:25:10 -50.3 Dark Down 40.2 137.5 Up 07:10:10 - 07:40:10 5025
Fall River/Burney 07:25:17 -51.3 Dark Down 40.5 135.7 Up 07:10:17 - 07:40:17 4987
Cedarville 07:25:12 -51.0 Dark Down 40.8 137.3 Up 07:10:12 - 07:40:12 4980
Susanville 07:25:17 -52.0 Dark Down 41.3 136.1 Up 07:10:17 - 07:40:17 4925
Greenville 07:25:19 -52.2 Dark Down 41.4 135.6 Up 07:10:19 - 07:40:19 4917
Gimple 07:25:18 -52.3 Dark Down 41.4 135.7 Up 07:10:18 - 07:40:18 4914
Quincy 07:25:19 -52.4 Dark Down 41.5 135.5 Up 07:10:19 - 07:40:19 4904
Portola 07:25:18 -52.6 Dark Down 41.9 136.0 Up 07:10:18 - 07:40:18 4881
Reno 07:25:17 -53.0 Dark Down 42.4 136.5 Up 07:10:17 - 07:40:17 4844
Carson City 07:25:18 -53.3 Dark Down 42.7 136.4 Up 07:10:18 - 07:40:18 4820
Gardnerville 07:25:19 -53.6 Dark Down 42.9 136.3 Up 07:10:19 - 07:40:19 4803
Yerington 07:25:17 -53.6 Dark Down 43.1 137.0 Up 07:10:17 - 07:40:17 4788
Hawthorne 07:25:17 -54.1 Dark Down 43.8 137.3 Up 07:10:17 - 07:40:17 4741
Lee Vining 07:25:20 -54.6 Dark Down 43.9 136.3 Up 07:10:20 - 07:40:20 4718
Tonopah 07:25:14 -54.7 Dark Down 44.9 138.6 Up 07:10:14 - 07:40:14 4664
Bishop 07:25:20 -55.3 Dark Down 44.8 136.8 Up 07:10:20 - 07:40:20 4655
Lone Pine 07:25:21 -56.1 Dark Down 45.5 136.7 Up 07:10:21 - 07:40:21 4592
CPSLO 07:25:34 -57.0 Dark Down 44.9 132.8 Up 07:10:34 - 07:40:34 4586
Beatty 07:25:16 -55.9 Dark Down 46.0 138.4 Up 07:10:16 - 07:40:16 4570
Indian Springs 07:25:13 -56.3 Dark Down 46.8 139.5 Up 07:10:13 - 07:40:13 4511
Henderson 07:25:12 -56.9 Dark Down 47.5 140.0 Up 07:10:12 - 07:40:12 4450
Wildwood 07:25:30 -58.5 Dark Down 47.0 134.2 Up 07:10:30 - 07:40:30 4432
Searchlight/Boulder City 07:25:14 -57.5 Dark Down 48.0 139.7 Up 07:10:14 - 07:40:14 4407
Niwot 07:24:26 -52.0 Dark Down 48.2 155.5 Up 07:09:26 - 07:39:26 4406
SwRI 07:24:27 -52.2 Dark Down 48.2 155.3 Up 07:09:27 - 07:39:27 4402
Laughlin/Bullhead City 07:25:13 -57.8 Dark Down 48.4 139.9 Up 07:10:13 - 07:40:13 4374
Patrick 07:25:10 -57.5 Dark Down 48.6 141.0 Up 07:10:10 - 07:40:10 4367
Kingman/Dolan Springs 07:25:11 -57.7 Dark Down 48.7 140.6 Up 07:10:11 - 07:40:11 4358
Mohave Valley 07:25:14 -58.0 Dark Down 48.6 139.7 Up 07:10:14 - 07:40:14 4354
Idyllwild 07:25:25 -59.1 Dark Down 48.3 136.2 Up 07:10:25 - 07:40:25 4342
DCO 07:25:08 -57.8 Dark Down 49.2 141.7 Up 07:10:08 - 07:40:08 4321
Lake Havasu City 07:25:14 -58.4 Dark Down 49.1 139.8 Up 07:10:14 - 07:40:14 4316
Parker 07:25:15 -58.8 Dark Down 49.4 139.5 Up 07:10:15 - 07:40:15 4289
Blythe 07:25:18 -59.3 Dark Down 49.6 138.8 Up 07:10:18 - 07:40:18 4261
Calipatria 07:25:23 -59.8 Dark Down 49.5 137.2 Up 07:10:23 - 07:40:23 4256
Yuma 07:25:21 -60.2 Dark Down 50.3 138.0 Up 07:10:21 - 07:40:21 4193

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 14NX65, (2025/09/30 07:25UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 40.22 147
68Omi Cet      02:19:20.8 -02:58:45  2.0  5.23 108
60 Cet         02:03:11.8 +00:07:43  5.4  0.95 106
PPM 145295     02:06:48.3 +01:26:32  8.4  0.65 108
PPM 145281     02:05:48.8 +00:49:34  9.7  0.15 107
14NX65         02:05:19.7 +00:54:38 13.4       107
Positions are for J2000

Event circumstances last updated at 2019/06/08 13:00:25 UT

Marc W. Buie, Southwest Research Institute

RECON