RECON: TNO occultation with 119951

Event between (119951) 02KX14 and star GA0660:11503516 with event index number of 304816

Geocentric closest approach at 2020/10/07 02:31:42 UTC

J2000 position of star is 17:19:02.9 -23:16:25
Equinox of date position of star is 17:20:17.8 -23:17:37
Stellar brightness G=15.3, use SENSEUP=128
Star is 171 degrees from the moon. Moon is 77% illuminated.
TNO apparent brightness V=26.1

[RECON map]
TNO is 39.0 AU from the Sun and 39.4 AU from the Earth.
The TNO is moving 17.0 km/sec on the sky relative to the star, or, 2.1 arcsec/hr.
The 1-sigma error in the time of the event is 106 seconds.
The 1-sigma cross-track error in the shadow position is 1430 km.
The sky-plane scale is 28545.2 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=691.9 km assuming a 5% albedo -- 3.5 sec chord
Diameter=282.4 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 119951, (2020/10/07 02:32UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:41.0 -26:28:35  0.9 11.69 174
35Eta Oph      17:11:34.2 -15:44:57  2.6  7.82 171
PPM 266836     17:26:22.5 -24:15:39  6.4  1.69 169
PPM 266759     17:23:22.2 -23:35:34  8.2  0.76 170
PPM 266687     17:20:46.3 -23:00:45  9.3  0.30 170
119951         17:20:18.5 -23:17:38 15.3       170
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 5.0 sigma about the mid-time.
The median site spacing is 25.6 km RECON observability=0.1 and success probability=0.5%
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 02:33:40 -12.1 AT Down 10.0 212.8 Really Low 02:24:18 - 02:43:02 4968
Peachland 02:33:40 -11.9 NT Down 10.6 212.5 Really Low 02:24:18 - 02:43:02 4956
Kelowna 02:33:40 -12.0 AT Down 10.4 212.8 Really Low 02:24:18 - 02:43:02 4956
Victoria 02:33:30 -9.5 NT Down 12.9 209.4 Really Low 02:24:08 - 02:42:52 4955
Summerland 02:33:41 -11.9 NT Down 10.7 212.6 Really Low 02:24:19 - 02:43:03 4950
Penticton 02:33:41 -12.0 AT Down 10.7 212.7 Really Low 02:24:19 - 02:43:03 4946
Oliver 02:33:42 -12.0 AT Down 11.0 212.7 Really Low 02:24:20 - 02:43:04 4933
Anarchist Mountain Observatory 02:33:44 -12.2 AT Down 11.1 212.9 Really Low 02:24:22 - 02:43:06 4925
Tonasket 02:33:44 -12.2 AT Down 11.4 212.9 Really Low 02:24:22 - 02:43:06 4914
Okanogan 02:33:45 -12.1 AT Down 11.7 212.8 Really Low 02:24:23 - 02:43:07 4903
Brewster 02:33:45 -12.0 AT Down 12.0 212.7 Really Low 02:24:23 - 02:43:07 4895
Manson/Chelan 02:33:44 -11.8 NT Down 12.3 212.4 Really Low 02:24:22 - 02:43:06 4892
Entiat 02:33:44 -11.7 NT Down 12.5 212.3 Really Low 02:24:22 - 02:43:06 4884
Wenatchee 02:33:44 -11.7 NT Down 12.8 212.3 Really Low 02:24:22 - 02:43:06 4875
Ellensburg 02:33:45 -11.6 NT Down 13.2 212.2 Really Low 02:24:23 - 02:43:07 4862
Yakima 02:33:46 -11.6 NT Down 13.6 212.2 Really Low 02:24:24 - 02:43:08 4846
Toppenish/White Swan 02:33:47 -11.7 NT Down 13.7 212.4 Really Low 02:24:25 - 02:43:09 4834
Goldendale 02:33:47 -11.5 NT Down 14.3 212.1 Really Low 02:24:25 - 02:43:09 4817
The Dalles 02:33:45 -11.2 NT Down 14.6 211.8 Really Low 02:24:23 - 02:43:07 4812
Pasco 02:33:52 -12.6 AT Down 13.3 213.5 Really Low 02:24:30 - 02:43:14 4812
PNWRO 02:33:54 -12.8 AT Down 13.4 213.7 Really Low 02:24:32 - 02:43:16 4798
Maupin 02:33:48 -11.3 NT Down 14.9 211.9 Really Low 02:24:26 - 02:43:10 4793
Sisters 02:33:48 -11.0 NT Down 15.9 211.6 Really Low 02:24:26 - 02:43:10 4761
Redmond 02:33:50 -11.3 NT Down 15.7 212.0 Really Low 02:24:28 - 02:43:12 4755
Bend 02:33:50 -11.2 NT Down 16.0 211.9 Really Low 02:24:28 - 02:43:12 4747
Oregon Observatory 02:33:50 -11.2 NT Down 16.2 211.8 Really Low 02:24:28 - 02:43:12 4741
La Pine/Gilchrist 02:33:50 -11.1 NT Down 16.4 211.8 Really Low 02:24:28 - 02:43:12 4733
North Lake 02:33:54 -11.6 NT Down 16.5 212.4 Really Low 02:24:32 - 02:43:16 4704
Paisley 02:33:58 -11.9 NT Down 16.8 212.8 Really Low 02:24:36 - 02:43:20 4673
Klamath Falls 02:33:54 -11.0 NT Down 17.7 211.8 Really Low 02:24:32 - 02:43:16 4668
Lakeview 02:33:59 -12.1 AT Down 17.2 213.1 Really Low 02:24:37 - 02:43:21 4646
Cedarville 02:34:02 -12.3 AT Down 17.6 213.4 Really Low 02:24:40 - 02:43:24 4611
Fall River/Burney 02:33:58 -11.3 NT Down 18.5 212.4 Really Low 02:24:36 - 02:43:20 4604
Susanville 02:34:03 -12.0 NT Down 18.8 213.1 Really Low 02:24:41 - 02:43:25 4562
Greenville 02:34:02 -11.7 NT Down 19.1 212.9 Really Low 02:24:40 - 02:43:24 4551
Gimple 02:34:02 -11.8 NT Down 19.1 213.0 Really Low 02:24:40 - 02:43:24 4550
Quincy 02:34:02 -11.8 NT Down 19.3 213.0 Really Low 02:24:40 - 02:43:24 4541
Portola 02:34:05 -12.1 AT Down 19.2 213.4 Really Low 02:24:43 - 02:43:27 4528
Reno 02:34:09 -12.7 AT Down 19.1 214.1 Really Low 02:24:47 - 02:43:31 4504
Carson City 02:34:10 -12.7 AT Down 19.4 214.1 Really Low 02:24:48 - 02:43:32 4484
Gardnerville 02:34:11 -12.7 AT Down 19.6 214.2 Really Low 02:24:49 - 02:43:33 4470
Yerington 02:34:13 -13.2 AT Down 19.3 214.7 Really Low 02:24:51 - 02:43:35 4464
Hawthorne 02:34:16 -13.7 AT Down 19.4 215.3 Really Low 02:24:54 - 02:43:38 4430
Lee Vining 02:34:16 -13.3 AT Down 20.1 215.0 Low 02:24:54 - 02:43:38 4407
Tonopah 02:34:24 -14.8 AT Down 19.1 216.6 Really Low 02:25:02 - 02:43:46 4380
Bishop 02:34:20 -13.9 AT Down 20.2 215.8 Low 02:24:58 - 02:43:42 4360
Beatty 02:34:29 -15.3 AT Down 19.8 217.3 Really Low 02:25:07 - 02:43:51 4305
CPSLO 02:34:16 -12.2 AT Down 23.0 214.3 Low 02:24:54 - 02:43:38 4275
Indian Springs 02:34:34 -16.2 AT Down 19.5 218.2 Really Low 02:25:12 - 02:43:56 4267
Niwot 02:35:03 -23.9 Dark Down 11.3 225.9 Really Low 02:25:41 - 02:44:25 4256
SwRI 02:35:04 -23.8 Dark Down 11.5 225.8 Really Low 02:25:42 - 02:44:26 4252
Henderson 02:34:38 -16.8 AT Down 19.6 218.9 Really Low 02:25:16 - 02:44:00 4222
Searchlight/Boulder City 02:34:40 -16.9 AT Down 20.0 219.1 Low 02:25:18 - 02:44:02 4186
Wildwood 02:34:28 -14.0 AT Down 23.0 216.4 Low 02:25:06 - 02:43:50 4168
Patrick 02:34:45 -17.8 AT Down 19.5 220.0 Really Low 02:25:23 - 02:44:07 4162
Laughlin/Bullhead City 02:34:43 -17.3 AT Down 20.1 219.5 Low 02:25:21 - 02:44:05 4161
Kingman/Dolan Springs 02:34:45 -17.7 AT Down 19.8 219.9 Really Low 02:25:23 - 02:44:07 4153
Mohave Valley 02:34:44 -17.3 AT Down 20.3 219.6 Low 02:25:22 - 02:44:06 4144
DCO 02:34:49 -18.4 Dark Down 19.3 220.7 Really Low 02:25:27 - 02:44:11 4130
Lake Havasu City 02:34:45 -17.5 AT Down 20.4 219.9 Low 02:25:23 - 02:44:07 4114
Idyllwild 02:34:37 -15.6 AT Down 22.3 218.1 Low 02:25:15 - 02:43:59 4113
Parker 02:34:47 -17.6 AT Down 20.7 220.0 Low 02:25:25 - 02:44:09 4091
Blythe 02:34:47 -17.4 AT Down 21.3 219.9 Low 02:25:25 - 02:44:09 4064
Calipatria 02:34:45 -16.6 AT Down 22.1 219.2 Low 02:25:23 - 02:44:07 4050
George/Scottsdale 02:34:59 -19.7 Dark Down 19.7 222.0 Really Low 02:25:37 - 02:44:21 4015
Yuma 02:34:49 -17.4 AT Down 22.0 220.1 Low 02:25:27 - 02:44:11 4005

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 119951, (2020/10/07 02:32UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 11.69 174
35Eta Oph      17:10:22.7 -15:43:29  2.6  7.82 171
PPM 266836     17:25:06.3 -24:14:37  6.4  1.69 169
PPM 266759     17:22:06.4 -23:34:26  8.2  0.76 170
PPM 266687     17:19:30.9 -22:59:33  9.3  0.30 170
119951         17:19:02.9 -23:16:25 15.3       170
Positions are for J2000

Event circumstances last updated at 2020/07/30 22:19:19 UT

Marc W. Buie, Southwest Research Institute

RECON