RECON: TNO occultation with 119951

Event between (119951) 02KX14 and star GA0660:11503516 with event index number of 295190

Geocentric closest approach at 2020/10/07 02:31:41 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 02:33:39 -12.1 AT Down 10.0 212.8 Really Low 02:24:17 - 02:43:01 4977
Peachland 02:33:38 -11.8 NT Down 10.6 212.5 Really Low 02:24:16 - 02:43:00 4966
Kelowna 02:33:38 -12.0 AT Down 10.4 212.7 Really Low 02:24:16 - 02:43:00 4966
Victoria 02:33:28 -9.5 NT Down 12.9 209.4 Really Low 02:24:06 - 02:42:50 4965
Summerland 02:33:39 -11.9 NT Down 10.7 212.6 Really Low 02:24:17 - 02:43:01 4959
Penticton 02:33:39 -12.0 AT Down 10.7 212.7 Really Low 02:24:17 - 02:43:01 4955
Oliver 02:33:40 -12.0 AT Down 11.0 212.7 Really Low 02:24:18 - 02:43:02 4942
Anarchist Mountain Observatory 02:33:42 -12.2 AT Down 11.1 212.9 Really Low 02:24:20 - 02:43:04 4934
Tonasket 02:33:42 -12.2 AT Down 11.4 212.9 Really Low 02:24:20 - 02:43:04 4923
Okanogan 02:33:43 -12.1 AT Down 11.7 212.8 Really Low 02:24:21 - 02:43:05 4912
Brewster 02:33:43 -12.0 NT Down 12.0 212.7 Really Low 02:24:21 - 02:43:05 4905
Manson/Chelan 02:33:42 -11.8 NT Down 12.3 212.4 Really Low 02:24:20 - 02:43:04 4901
Entiat 02:33:43 -11.7 NT Down 12.5 212.3 Really Low 02:24:21 - 02:43:05 4894
Wenatchee 02:33:43 -11.7 NT Down 12.8 212.3 Really Low 02:24:21 - 02:43:05 4885
Ellensburg 02:33:43 -11.6 NT Down 13.2 212.1 Really Low 02:24:21 - 02:43:05 4872
Yakima 02:33:44 -11.6 NT Down 13.6 212.2 Really Low 02:24:22 - 02:43:06 4855
Toppenish/White Swan 02:33:46 -11.7 NT Down 13.7 212.4 Really Low 02:24:24 - 02:43:08 4844
Goldendale 02:33:45 -11.5 NT Down 14.3 212.1 Really Low 02:24:23 - 02:43:07 4827
The Dalles 02:33:45 -11.2 NT Down 14.6 211.8 Really Low 02:24:23 - 02:43:07 4822
Pasco 02:33:50 -12.6 AT Down 13.3 213.5 Really Low 02:24:28 - 02:43:12 4821
PNWRO 02:33:52 -12.8 AT Down 13.4 213.7 Really Low 02:24:30 - 02:43:14 4808
Maupin 02:33:46 -11.3 NT Down 14.9 211.9 Really Low 02:24:24 - 02:43:08 4802
Sisters 02:33:46 -11.0 NT Down 15.9 211.6 Really Low 02:24:24 - 02:43:08 4771
Redmond 02:33:49 -11.3 NT Down 15.7 212.0 Really Low 02:24:27 - 02:43:11 4764
Bend 02:33:48 -11.2 NT Down 16.0 211.9 Really Low 02:24:26 - 02:43:10 4757
Oregon Observatory 02:33:48 -11.1 NT Down 16.2 211.8 Really Low 02:24:26 - 02:43:10 4751
La Pine/Gilchrist 02:33:49 -11.1 NT Down 16.4 211.8 Really Low 02:24:27 - 02:43:11 4742
North Lake 02:33:52 -11.6 NT Down 16.5 212.4 Really Low 02:24:30 - 02:43:14 4714
Paisley 02:33:55 -11.9 NT Down 16.8 212.8 Really Low 02:24:33 - 02:43:17 4683
Klamath Falls 02:33:51 -11.0 NT Down 17.7 211.8 Really Low 02:24:29 - 02:43:13 4677
Lakeview 02:33:57 -12.1 AT Down 17.2 213.1 Really Low 02:24:35 - 02:43:19 4656
Cedarville 02:34:01 -12.3 AT Down 17.6 213.4 Really Low 02:24:39 - 02:43:23 4621
Fall River/Burney 02:33:56 -11.3 NT Down 18.5 212.4 Really Low 02:24:34 - 02:43:18 4614
Susanville 02:34:01 -11.9 NT Down 18.8 213.1 Really Low 02:24:39 - 02:43:23 4571
Greenville 02:34:00 -11.7 NT Down 19.1 212.9 Really Low 02:24:38 - 02:43:22 4561
Gimple 02:34:01 -11.8 NT Down 19.1 213.0 Really Low 02:24:39 - 02:43:23 4560
Quincy 02:34:01 -11.7 NT Down 19.3 213.0 Really Low 02:24:39 - 02:43:23 4550
Portola 02:34:03 -12.1 AT Down 19.2 213.4 Really Low 02:24:41 - 02:43:25 4537
Reno 02:34:07 -12.7 AT Down 19.1 214.0 Really Low 02:24:45 - 02:43:29 4513
Carson City 02:34:08 -12.7 AT Down 19.4 214.1 Really Low 02:24:46 - 02:43:30 4494
Gardnerville 02:34:08 -12.7 AT Down 19.6 214.2 Really Low 02:24:46 - 02:43:30 4480
Yerington 02:34:11 -13.2 AT Down 19.3 214.7 Really Low 02:24:49 - 02:43:33 4473
Hawthorne 02:34:14 -13.7 AT Down 19.4 215.3 Really Low 02:24:52 - 02:43:36 4439
Lee Vining 02:34:14 -13.3 AT Down 20.1 215.0 Low 02:24:52 - 02:43:36 4416
Tonopah 02:34:22 -14.8 AT Down 19.1 216.6 Really Low 02:25:00 - 02:43:44 4390
Bishop 02:34:18 -13.9 AT Down 20.3 215.7 Low 02:24:56 - 02:43:40 4370
Beatty 02:34:26 -15.3 AT Down 19.8 217.2 Really Low 02:25:04 - 02:43:48 4315
CPSLO 02:34:13 -12.2 AT Down 23.0 214.3 Low 02:24:51 - 02:43:35 4285
Indian Springs 02:34:33 -16.2 AT Down 19.5 218.2 Really Low 02:25:11 - 02:43:55 4276
Niwot 02:35:02 -23.9 Dark Down 11.3 225.9 Really Low 02:25:40 - 02:44:24 4266
SwRI 02:35:02 -23.8 Dark Down 11.5 225.8 Really Low 02:25:40 - 02:44:24 4261
Henderson 02:34:37 -16.8 AT Down 19.6 218.9 Really Low 02:25:15 - 02:43:59 4231
Searchlight/Boulder City 02:34:38 -16.9 AT Down 20.0 219.1 Low 02:25:16 - 02:44:00 4196
Wildwood 02:34:26 -14.0 AT Down 23.0 216.4 Low 02:25:04 - 02:43:48 4177
Patrick 02:34:43 -17.8 AT Down 19.5 220.0 Really Low 02:25:21 - 02:44:05 4172
Laughlin/Bullhead City 02:34:41 -17.2 AT Down 20.1 219.5 Low 02:25:19 - 02:44:03 4170
Kingman/Dolan Springs 02:34:43 -17.7 AT Down 19.8 219.9 Really Low 02:25:21 - 02:44:05 4162
Mohave Valley 02:34:41 -17.3 AT Down 20.3 219.5 Low 02:25:19 - 02:44:03 4153
DCO 02:34:47 -18.4 Dark Down 19.4 220.6 Really Low 02:25:25 - 02:44:09 4139
Lake Havasu City 02:34:44 -17.5 AT Down 20.4 219.8 Low 02:25:22 - 02:44:06 4123
Idyllwild 02:34:35 -15.6 AT Down 22.3 218.1 Low 02:25:13 - 02:43:57 4122
Parker 02:34:45 -17.6 AT Down 20.7 220.0 Low 02:25:23 - 02:44:07 4101
Blythe 02:34:45 -17.4 AT Down 21.3 219.8 Low 02:25:23 - 02:44:07 4073
Calipatria 02:34:42 -16.6 AT Down 22.1 219.2 Low 02:25:20 - 02:44:04 4060
George/Scottsdale 02:34:56 -19.7 Dark Down 19.7 222.0 Really Low 02:25:34 - 02:44:18 4024
Yuma 02:34:47 -17.4 AT Down 22.0 220.1 Low 02:25:25 - 02:44:09 4014

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 22:20:05 UT

Marc W. Buie, Southwest Research Institute

RECON