RECON: TNO occultation with 543734

Event between (543734) 14OL394 and star GA1020:00208190 with event index number of 1706846

Geocentric closest approach at 2023/12/30 05:11:14 UTC

J2000 position of star is 02:17:18.7 +12:55:17
Equinox of date position of star is 02:18:24.3 +13:00:50
Stellar brightness G=15.4, use SENSEUP=128
Star is 98 degrees from the moon. Moon is 90% illuminated.
TNO apparent brightness V=25.1

[RECON map]
TNO is 31.1 AU from the Sun and 30.6 AU from the Earth.
The TNO is moving 8.4 km/sec on the sky relative to the star, or, 1.4 arcsec/hr.
The 1-sigma error in the time of the event is 589 seconds.
The 1-sigma cross-track error in the shadow position is 3412 km.
The sky-plane scale is 22205.4 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=173.8 km assuming a 5% albedo -- 7.2 sec chord
Diameter=70.9 km assuming a 30% albedo -- 2.9 sec chord
Dynamical classification is 5:3EE
 
 
 
 
 
 

Star training set for 543734, (2023/12/30 05:11UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:18.0 +16:33:21  0.8 33.67  66
6Bet Ari       01:55:58.2 +20:55:28  2.6  9.57 100
19 Ari         02:14:22.1 +15:23:28  5.7  2.57  98
PPM 118118     02:20:10.5 +13:06:08  7.9  0.39  98
543734         02:18:36.7 +13:01:53 15.4        98
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 23.5 km RECON observability=1.0 and success probability=8.1%
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 05:05:59 -46.9 Dark Up 48.8 212.5 Up 04:50:59 - 05:20:59 6373
Kelowna 05:05:59 -46.9 Dark Up 49.2 212.5 Up 04:50:59 - 05:20:59 6340
Peachland 05:06:04 -46.8 Dark Up 49.4 212.2 Up 04:51:04 - 05:21:04 6334
Summerland 05:06:03 -46.9 Dark Up 49.5 212.4 Up 04:51:03 - 05:21:03 6319
Penticton 05:06:01 -47.0 Dark Up 49.5 212.6 Up 04:51:01 - 05:21:01 6311
Victoria 05:06:33 -45.0 Dark Up 51.6 207.8 Up 04:51:33 - 05:21:33 6286
Oliver 05:06:02 -47.1 Dark Up 49.8 212.8 Up 04:51:02 - 05:21:02 6278
Anarchist Mountain Observatory 05:06:00 -47.3 Dark Up 49.9 213.2 Up 04:51:00 - 05:21:00 6259
Tonasket 05:06:01 -47.4 Dark Up 50.2 213.3 Up 04:51:01 - 05:21:01 6231
Okanogan 05:06:03 -47.4 Dark Up 50.5 213.3 Up 04:51:03 - 05:21:03 6202
Brewster 05:06:03 -47.4 Dark Up 50.8 213.2 Up 04:51:03 - 05:21:03 6180
Manson/Chelan 05:06:07 -47.2 Dark Up 51.1 212.8 Up 04:51:07 - 05:21:07 6167
Entiat 05:06:07 -47.3 Dark Up 51.3 212.9 Up 04:51:07 - 05:21:07 6147
Wenatchee 05:06:08 -47.3 Dark Up 51.6 212.9 Up 04:51:08 - 05:21:08 6125
Ellensburg 05:06:11 -47.3 Dark Up 52.0 212.9 Up 04:51:11 - 05:21:11 6090
Yakima 05:06:12 -47.4 Dark Up 52.3 213.2 Up 04:51:12 - 05:21:12 6051
Toppenish/White Swan 05:06:09 -47.6 Dark Up 52.5 213.5 Up 04:51:09 - 05:21:09 6027
Pasco 05:06:00 -48.4 Dark Up 52.1 215.4 Up 04:51:00 - 05:21:00 5992
Goldendale 05:06:13 -47.5 Dark Up 53.1 213.3 Up 04:51:13 - 05:21:13 5982
The Dalles 05:06:18 -47.3 Dark Up 53.4 213.0 Up 04:51:18 - 05:21:18 5967
PNWRO 05:05:59 -48.6 Dark Up 52.2 215.9 Up 04:50:59 - 05:20:59 5965
Maupin 05:06:17 -47.5 Dark Up 53.7 213.4 Up 04:51:17 - 05:21:17 5925
Sisters 05:06:21 -47.4 Dark Up 54.6 213.4 Up 04:51:21 - 05:21:21 5850
Redmond 05:06:18 -47.6 Dark Up 54.5 214.0 Up 04:51:18 - 05:21:18 5840
Bend 05:06:20 -47.6 Dark Up 54.7 214.0 Up 04:51:20 - 05:21:20 5822
Oregon Observatory 05:06:20 -47.6 Dark Up 54.9 213.9 Up 04:51:20 - 05:21:20 5807
La Pine/Gilchrist 05:06:21 -47.6 Dark Up 55.1 214.0 Up 04:51:21 - 05:21:21 5789
North Lake 05:06:16 -48.1 Dark Up 55.2 215.2 Up 04:51:16 - 05:21:16 5734
Paisley 05:06:14 -48.5 Dark Up 55.5 216.3 Up 04:51:14 - 05:21:14 5673
Klamath Falls 05:06:25 -47.7 Dark Up 56.4 214.8 Up 04:51:25 - 05:21:25 5651
Lakeview 05:06:13 -48.7 Dark Up 55.9 217.0 Up 04:51:13 - 05:21:13 5619
Cedarville 05:06:11 -49.0 Dark Up 56.3 217.8 Up 04:51:11 - 05:21:11 5550
Fall River/Burney 05:06:22 -48.2 Dark Up 57.2 216.4 Up 04:51:22 - 05:21:22 5527
Susanville 05:06:18 -48.9 Dark Up 57.4 218.2 Up 04:51:18 - 05:21:18 5449
Greenville 05:06:21 -48.7 Dark Up 57.7 218.0 Up 04:51:21 - 05:21:21 5427
Gimple 05:06:20 -48.8 Dark Up 57.7 218.1 Up 04:51:20 - 05:21:20 5425
Quincy 05:06:21 -48.8 Dark Up 57.9 218.2 Up 04:51:21 - 05:21:21 5407
Portola 05:06:18 -49.1 Dark Up 57.8 219.1 Up 04:51:18 - 05:21:18 5384
Reno 05:06:09 -49.6 Dark Up 57.7 220.3 Up 04:51:09 - 05:21:09 5344
Carson City 05:06:11 -49.7 Dark Up 57.9 220.7 Up 04:51:11 - 05:21:11 5307
Gardnerville 05:06:11 -49.8 Dark Up 58.1 221.0 Up 04:51:11 - 05:21:11 5282
Yerington 05:06:04 -50.2 Dark Up 57.8 221.9 Up 04:51:04 - 05:21:04 5275
Hawthorne 05:06:01 -50.7 Dark Up 57.8 223.2 Up 04:51:01 - 05:21:01 5217
Lee Vining 05:06:07 -50.4 Dark Up 58.5 223.1 Up 04:51:07 - 05:21:07 5169
Niwot 05:04:04 -59.8 Dark Up 49.1 238.3 Up 04:49:04 - 05:19:04 5156
SwRI 05:04:05 -59.8 Dark Up 49.2 238.3 Up 04:49:05 - 05:19:05 5147
Tonopah 05:05:50 -51.8 Dark Up 57.4 225.7 Up 04:50:50 - 05:20:50 5141
Bishop 05:06:02 -51.1 Dark Up 58.5 224.8 Up 04:51:02 - 05:21:02 5093
Beatty 05:05:45 -52.4 Dark Up 58.0 227.7 Up 04:50:45 - 05:20:45 5013
Indian Springs 05:05:36 -53.3 Dark Up 57.6 229.6 Up 04:50:36 - 05:20:36 4958
CPSLO 05:06:23 -49.6 Dark Up 61.2 223.9 Up 04:51:23 - 05:21:23 4928
Henderson 05:05:30 -53.9 Dark Up 57.5 231.2 Up 04:50:30 - 05:20:30 4889
Searchlight/Boulder City 05:05:30 -54.0 Dark Up 57.8 232.0 Up 04:50:30 - 05:20:30 4828
Patrick 05:05:20 -54.9 Dark Up 57.2 233.4 Up 04:50:20 - 05:20:20 4803
Laughlin/Bullhead City 05:05:27 -54.4 Dark Up 57.8 232.8 Up 04:50:27 - 05:20:27 4790
Kingman/Dolan Springs 05:05:21 -54.8 Dark Up 57.4 233.5 Up 04:50:21 - 05:20:21 4783
Mohave Valley 05:05:27 -54.4 Dark Up 57.9 233.2 Up 04:50:27 - 05:20:27 4761
Wildwood 05:06:07 -51.3 Dark Up 60.9 228.6 Up 04:51:07 - 05:21:07 4759
DCO 05:05:13 -55.5 Dark Up 56.9 234.7 Up 04:50:13 - 05:20:13 4758
Lake Havasu City 05:05:26 -54.7 Dark Up 58.0 234.0 Up 04:50:26 - 05:20:26 4715
Idyllwild 05:05:50 -52.9 Dark Up 60.0 231.8 Up 04:50:50 - 05:20:50 4682
Parker 05:05:27 -54.7 Dark Up 58.2 234.5 Up 04:50:27 - 05:20:27 4677
Blythe 05:05:30 -54.6 Dark Up 58.7 234.8 Up 04:50:30 - 05:20:30 4628
Calipatria 05:05:38 -53.9 Dark Up 59.6 234.3 Up 04:50:38 - 05:20:38 4594
George/Scottsdale 05:05:03 -56.7 Dark Up 56.8 238.1 Up 04:50:03 - 05:20:03 4587
Yuma 05:05:30 -54.6 Dark Up 59.2 236.0 Up 04:50:30 - 05:20:30 4531

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 543734, (2023/12/30 05:11UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 33.67  66
6Bet Ari       01:54:38.5 +20:48:27  2.6  9.57 100
19 Ari         02:13:03.4 +15:16:47  5.7  2.57  98
PPM 118118     02:18:52.5 +12:59:33  7.9  0.39  98
543734         02:17:18.7 +12:55:17 15.4        98
Positions are for J2000

Event circumstances last updated at 2020/03/02 00:09:48 UT

Marc W. Buie, Southwest Research Institute

RECON