RECON: TNO occultation with 03UA414

Event between 03UA414 and star GA1000:00174079 with event index number of 1633266

Geocentric closest approach at 2026/11/15 08:05:25 UTC

J2000 position of star is 01:58:40.2 +11:39:02
Equinox of date position of star is 01:59:44.0 +11:44:48
Stellar brightness G=15.8, use SENSEUP=128
Star is 92 degrees from the moon. Moon is 30% illuminated.
TNO apparent brightness V=22.1

[RECON map]
TNO is 51.7 AU from the Sun and 50.8 AU from the Earth.
The TNO is moving 24.0 km/sec on the sky relative to the star, or, 2.3 arcsec/hr.
The 1-sigma error in the time of the event is 342 seconds.
The 1-sigma cross-track error in the shadow position is 2830 km.
The sky-plane scale is 36824.6 km/arcsec.

The TNO has an absolute magnitude Hv=5.0
Diameter=599.8 km assuming a 5% albedo -- 24.9 sec chord
Diameter=244.9 km assuming a 30% albedo -- 10.2 sec chord
Dynamical classification is 9:2EEEEEEE
 
 
 
 
 
 

Star training set for 03UA414, (2026/11/15 08:05UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:27.9 +16:33:41  0.8 38.38 130
6Bet Ari       01:56:07.8 +20:56:18  2.6  9.21  95
PPM 117850     02:00:52.5 +12:25:27  6.1  0.67  93
PPM 117823     01:59:06.2 +11:39:33 10.9  0.27  92
03UA414        02:00:06.5 +11:46:49 15.8        93
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 2.6 sigma about the mid-time.
The median site spacing is 22.8 km RECON observability=1.0 and success probability=9.0%
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 08:03:08 -58.0 Dark Down 45.8 218.4 Up 07:48:08 - 08:18:08 -3916
Kelowna 08:03:09 -58.4 Dark Down 46.2 218.4 Up 07:48:09 - 08:18:09 -3948
Summerland 08:03:09 -58.7 Dark Down 46.5 218.4 Up 07:48:09 - 08:18:09 -3969
Penticton 08:03:09 -58.7 Dark Down 46.5 218.5 Up 07:48:09 - 08:18:09 -3978
Victoria 08:03:19 -60.0 Dark Down 48.8 214.1 Up 07:48:19 - 08:18:19 -3990
Oliver 08:03:09 -59.1 Dark Down 46.7 218.8 Up 07:48:09 - 08:18:09 -4011
Anarchist Mountain Observatory 08:03:09 -59.2 Dark Down 46.8 219.1 Up 07:48:09 - 08:18:09 -4031
Tonasket 08:03:09 -59.5 Dark Down 47.1 219.3 Up 07:48:09 - 08:18:09 -4058
Okanogan 08:03:09 -59.9 Dark Down 47.4 219.3 Up 07:48:09 - 08:18:09 -4087
Brewster 08:03:10 -60.2 Dark Down 47.7 219.2 Up 07:48:10 - 08:18:10 -4109
Manson/Chelan 08:03:11 -60.4 Dark Down 48.0 218.9 Up 07:48:11 - 08:18:11 -4121
Entiat 08:03:11 -60.6 Dark Down 48.2 218.9 Up 07:48:11 - 08:18:11 -4140
Wenatchee 08:03:12 -60.9 Dark Down 48.4 219.0 Up 07:48:12 - 08:18:12 -4162
Ellensburg 08:03:12 -61.3 Dark Down 48.9 219.0 Up 07:48:12 - 08:18:12 -4197
Yakima 08:03:12 -61.7 Dark Down 49.2 219.3 Up 07:48:12 - 08:18:12 -4235
Toppenish/White Swan 08:03:12 -61.9 Dark Down 49.3 219.7 Up 07:48:12 - 08:18:12 -4260
Pasco 08:03:08 -61.9 Dark Down 48.8 221.4 Up 07:48:08 - 08:18:08 -4299
Goldendale 08:03:13 -62.5 Dark Down 49.9 219.5 Up 07:48:13 - 08:18:13 -4303
The Dalles 08:03:14 -62.8 Dark Down 50.2 219.2 Up 07:48:14 - 08:18:14 -4317
PNWRO 08:03:08 -62.1 Dark Down 48.9 221.9 Up 07:48:08 - 08:18:08 -4328
Maupin 08:03:14 -63.2 Dark Down 50.5 219.6 Up 07:48:14 - 08:18:14 -4359
Sisters 08:03:16 -64.1 Dark Down 51.4 219.7 Up 07:48:16 - 08:18:16 -4433
Redmond 08:03:15 -64.1 Dark Down 51.2 220.2 Up 07:48:15 - 08:18:15 -4445
Bend 08:03:15 -64.3 Dark Down 51.5 220.2 Up 07:48:15 - 08:18:15 -4462
Oregon Observatory 08:03:16 -64.5 Dark Down 51.6 220.2 Up 07:48:16 - 08:18:16 -4476
La Pine/Gilchrist 08:03:16 -64.7 Dark Down 51.8 220.3 Up 07:48:16 - 08:18:16 -4495
North Lake 08:03:14 -65.1 Dark Down 51.9 221.5 Up 07:48:14 - 08:18:14 -4551
Paisley 08:03:13 -65.6 Dark Down 52.1 222.4 Up 07:48:13 - 08:18:13 -4614
Klamath Falls 08:03:17 -66.2 Dark Down 53.1 221.1 Up 07:48:17 - 08:18:17 -4631
Lakeview 08:03:13 -66.0 Dark Down 52.4 223.1 Up 07:48:13 - 08:18:13 -4669
Cedarville 08:03:13 -66.7 Dark Down 52.8 224.0 Up 07:48:13 - 08:18:13 -4738
Fall River/Burney 08:03:17 -67.3 Dark Down 53.7 222.7 Up 07:48:17 - 08:18:17 -4757
Susanville 08:03:15 -67.8 Dark Down 53.8 224.3 Up 07:48:15 - 08:18:15 -4838
Greenville 08:03:15 -68.1 Dark Down 54.2 224.2 Up 07:48:15 - 08:18:15 -4858
Gimple 08:03:15 -68.1 Dark Down 54.1 224.3 Up 07:48:15 - 08:18:15 -4861
Quincy 08:03:16 -68.3 Dark Down 54.3 224.4 Up 07:48:16 - 08:18:16 -4879
Portola 08:03:14 -68.4 Dark Down 54.2 225.2 Up 07:48:14 - 08:18:14 -4903
Reno 08:03:12 -68.6 Dark Down 54.0 226.3 Up 07:48:12 - 08:18:12 -4946
Carson City 08:03:12 -68.9 Dark Down 54.2 226.7 Up 07:48:12 - 08:18:12 -4982
Gardnerville 08:03:12 -69.1 Dark Down 54.4 227.0 Up 07:48:12 - 08:18:12 -5008
Yerington 08:03:10 -69.0 Dark Down 54.0 227.8 Up 07:48:10 - 08:18:10 -5018
Hawthorne 08:03:09 -69.3 Dark Down 54.0 229.0 Up 07:48:09 - 08:18:09 -5078
Lee Vining 08:03:11 -70.0 Dark Down 54.7 228.9 Up 07:48:11 - 08:18:11 -5123
Tonopah 08:03:05 -69.4 Dark Down 53.5 231.3 Up 07:48:05 - 08:18:05 -5159
Niwot 08:02:31 -62.7 Dark Down 44.6 242.6 Up 07:47:31 - 08:17:31 -5185
SwRI 08:02:31 -62.9 Dark Down 44.7 242.6 Up 07:47:31 - 08:17:31 -5194
Bishop 08:03:09 -70.4 Dark Down 54.6 230.5 Up 07:48:09 - 08:18:09 -5202
Beatty 08:03:04 -70.4 Dark Down 53.9 233.1 Up 07:48:04 - 08:18:04 -5289
Indian Springs 08:03:01 -70.3 Dark Down 53.4 234.8 Up 07:48:01 - 08:18:01 -5348
CPSLO 08:03:17 -72.8 Dark Down 57.3 229.8 Up 07:48:17 - 08:18:17 -5357
Henderson 08:02:58 -70.5 Dark Down 53.2 236.2 Up 07:47:58 - 08:17:58 -5420
Searchlight/Boulder City 08:02:59 -71.0 Dark Down 53.5 236.9 Up 07:47:59 - 08:17:59 -5481
Patrick 08:02:56 -70.6 Dark Down 52.8 238.2 Up 07:47:56 - 08:17:56 -5510
Laughlin/Bullhead City 08:02:58 -71.1 Dark Down 53.4 237.7 Up 07:47:58 - 08:17:58 -5520
Kingman/Dolan Springs 08:02:56 -70.9 Dark Down 53.1 238.2 Up 07:47:56 - 08:17:56 -5529
Wildwood 08:03:11 -73.5 Dark Down 56.7 234.0 Up 07:48:11 - 08:18:11 -5535
Mohave Valley 08:02:58 -71.4 Dark Down 53.6 238.0 Up 07:47:58 - 08:17:58 -5549
DCO 08:02:53 -70.6 Dark Down 52.5 239.3 Up 07:47:53 - 08:17:53 -5558
Lake Havasu City 08:02:58 -71.6 Dark Down 53.6 238.7 Up 07:47:58 - 08:17:58 -5596
Idyllwild 08:03:05 -73.2 Dark Down 55.7 236.8 Up 07:48:05 - 08:18:05 -5619
Parker 08:02:58 -71.9 Dark Down 53.8 239.2 Up 07:47:58 - 08:17:58 -5634
Blythe 08:02:59 -72.4 Dark Down 54.2 239.4 Up 07:47:59 - 08:17:59 -5682
Calipatria 08:03:02 -73.3 Dark Down 55.2 239.0 Up 07:48:02 - 08:18:02 -5712
George/Scottsdale 08:02:50 -71.0 Dark Down 52.2 242.3 Up 07:47:50 - 08:17:50 -5733
Yuma 08:03:00 -73.2 Dark Down 54.7 240.5 Up 07:48:00 - 08:18:00 -5779

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 03UA414, (2026/11/15 08:05UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 38.38 130
6Bet Ari       01:54:38.5 +20:48:27  2.6  9.21  95
PPM 117850     01:59:25.9 +12:17:40  6.1  0.67  93
PPM 117823     01:57:40.0 +11:31:44 10.9  0.27  92
03UA414        01:58:40.2 +11:39:02 15.8        92
Positions are for J2000

Event circumstances last updated at 2019/11/13 22:01:25 UT

Marc W. Buie, Southwest Research Institute

RECON