RECON: TNO occultation with 10GX34

Event between 10GX34 and star GA0640:27376250 with event index number of 303598

Geocentric closest approach at 2019/07/22 05:09:12 UTC

J2000 position of star is 18:20:12.9 -24:01:50
Equinox of date position of star is 18:21:24.2 -24:01:14
Stellar brightness G=18.6, use SENSEUP=128
Star is 83 degrees from the moon. Moon is 76% illuminated.
TNO apparent brightness V=20.7

[RECON map]
TNO is 16.6 AU from the Sun and 15.6 AU from the Earth.
The TNO is moving 18.2 km/sec on the sky relative to the star, or, 5.8 arcsec/hr.
The 1-sigma error in the time of the event is 263 seconds.
The 1-sigma cross-track error in the shadow position is 1296 km.
The sky-plane scale is 11332.2 km/arcsec.

The TNO has an absolute magnitude Hv=8.5
Diameter=120.8 km assuming a 5% albedo -- 6.6 sec chord
Diameter=49.3 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 10GX34, (2019/07/22 05:09UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.6 -26:28:26  0.9 25.13 107
Nunki          18:56:28.6 -26:16:15  2.0  8.25  75
PPM 268291     18:22:43.6 -24:54:17  6.0  0.93  83
PPM 268251     18:21:06.2 -23:18:20  7.9  0.72  83
PPM 268272     18:22:03.6 -23:55:58  9.2  0.17  83
10GX34         18:21:24.7 -24:01:14 18.6        83
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 3.4 sigma about the mid-time.
The median site spacing is 11.7 km RECON observability=0.5 and success probability=0.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 05:10:41 -10.0 NT Down 14.5 163.9 Really Low 04:55:41 - 05:25:41 5179
Summerland 05:10:43 -10.1 NT Down 14.8 163.6 Really Low 04:55:43 - 05:25:43 5165
Penticton 05:10:42 -10.2 NT Down 14.8 163.7 Really Low 04:55:42 - 05:25:42 5165
Okanagan Falls 05:10:42 -10.3 NT Down 15.0 163.7 Really Low 04:55:42 - 05:25:42 5158
Oliver 05:10:43 -10.5 NT Down 15.2 163.7 Really Low 04:55:43 - 05:25:43 5152
Anarchist Mountain Observatory 05:10:42 -10.7 NT Down 15.4 163.9 Really Low 04:55:42 - 05:25:42 5149
Oroville 05:10:42 -10.7 NT Down 15.4 163.8 Really Low 04:55:42 - 05:25:42 5145
Tonasket 05:10:42 -10.9 NT Down 15.7 163.8 Really Low 04:55:42 - 05:25:42 5137
Okanogan 05:10:44 -11.1 NT Down 16.0 163.6 Really Low 04:55:44 - 05:25:44 5123
Brewster 05:10:45 -11.2 NT Down 16.2 163.4 Really Low 04:55:45 - 05:25:45 5110
Manson/Chelan 05:10:46 -11.2 NT Down 16.3 163.0 Really Low 04:55:46 - 05:25:46 5097
Entiat 05:10:47 -11.3 NT Down 16.5 163.0 Really Low 04:55:47 - 05:25:47 5087
Wenatchee 05:10:47 -11.5 NT Down 16.7 162.8 Really Low 04:55:47 - 05:25:47 5076
Ellensburg 05:10:49 -11.7 NT Down 17.1 162.6 Really Low 04:55:49 - 05:25:49 5057
Pasco 05:10:44 -12.9 AT Down 18.1 163.9 Really Low 04:55:44 - 05:25:44 5047
PNWRO 05:10:44 -13.2 AT Down 18.4 164.1 Really Low 04:55:44 - 05:25:44 5041
Yakima 05:10:50 -12.0 NT Down 17.5 162.6 Really Low 04:55:50 - 05:25:50 5041
Toppenish/White Swan 05:10:49 -12.2 AT Down 17.7 162.7 Really Low 04:55:49 - 05:25:49 5034
George/Umatilla 05:10:46 -13.0 AT Down 18.4 163.6 Really Low 04:55:46 - 05:25:46 5031
Goldendale 05:10:52 -12.4 AT Down 18.2 162.3 Really Low 04:55:52 - 05:25:52 5005
The Dalles 05:10:54 -12.4 AT Down 18.3 161.9 Really Low 04:55:54 - 05:25:54 4990
Maupin 05:10:53 -12.8 AT Down 18.7 162.0 Really Low 04:55:53 - 05:25:53 4974
Madras/Culver 05:10:54 -13.2 AT Down 19.2 161.9 Really Low 04:55:54 - 05:25:54 4950
Redmond 05:10:55 -13.4 AT Down 19.6 161.8 Really Low 04:55:55 - 05:25:55 4933
Sisters 05:10:56 -13.2 AT Down 19.4 161.4 Really Low 04:55:56 - 05:25:56 4928
Niwot 05:09:48 -23.7 Dark Down 25.8 176.9 Low 04:54:48 - 05:24:48 4927
Bend 05:10:56 -13.5 AT Down 19.7 161.6 Really Low 04:55:56 - 05:25:56 4922
SwRI 05:09:49 -23.7 Dark Down 25.9 176.8 Low 04:54:49 - 05:24:49 4921
Oregon Observatory 05:10:56 -13.6 AT Down 19.9 161.5 Really Low 04:55:56 - 05:25:56 4912
La Pine/Gilchrist 05:10:57 -13.7 AT Down 20.0 161.4 Low 04:55:57 - 05:25:57 4902
North Lake 05:10:55 -14.3 AT Down 20.6 161.9 Low 04:55:55 - 05:25:55 4891
Paisley 05:10:54 -14.9 AT Down 21.2 162.2 Low 04:55:54 - 05:25:54 4871
Lakeview 05:10:54 -15.3 AT Down 21.7 162.3 Low 04:55:54 - 05:25:54 4850
Chiloquin 05:11:00 -14.3 AT Down 21.0 160.9 Low 04:56:00 - 05:26:00 4844
Klamath Falls 05:11:00 -14.6 AT Down 21.4 161.0 Low 04:56:00 - 05:26:00 4829
Tulelake 05:10:59 -14.9 AT Down 21.7 161.2 Low 04:55:59 - 05:25:59 4821
Cedarville 05:10:54 -15.9 AT Down 22.4 162.4 Low 04:55:54 - 05:25:54 4821
Fall River/Burney 05:11:00 -15.6 AT Down 22.6 161.2 Low 04:56:00 - 05:26:00 4778
Susanville 05:10:57 -16.5 AT Down 23.3 161.8 Low 04:55:57 - 05:25:57 4758
Gimple 05:10:58 -16.6 AT Down 23.6 161.6 Low 04:55:58 - 05:25:58 4740
Greenville 05:10:59 -16.5 AT Down 23.5 161.5 Low 04:55:59 - 05:25:59 4739
Portola 05:10:57 -17.0 AT Down 24.0 161.9 Low 04:55:57 - 05:25:57 4730
Quincy 05:10:59 -16.7 AT Down 23.7 161.5 Low 04:55:59 - 05:25:59 4729
Reno 05:10:54 -17.6 AT Down 24.4 162.5 Low 04:55:54 - 05:25:54 4727
Carson City 05:10:54 -17.8 AT Down 24.7 162.5 Low 04:55:54 - 05:25:54 4708
Yerington 05:10:52 -18.3 Dark Down 25.0 163.0 Low 04:55:52 - 05:25:52 4708
Gardnerville 05:10:54 -18.0 Dark Down 25.0 162.5 Low 04:55:54 - 05:25:54 4696
Hawthorne 05:10:50 -18.9 Dark Down 25.6 163.5 Low 04:55:50 - 05:25:50 4691
Tonopah 05:10:44 -20.0 Dark Down 26.4 164.8 Low 04:55:44 - 05:25:44 4688
Lee Vining 05:10:52 -19.1 Dark Down 26.0 162.9 Low 04:55:52 - 05:25:52 4653
Bishop 05:10:50 -19.9 Dark Down 26.8 163.6 Low 04:55:50 - 05:25:50 4632
Beatty 05:10:43 -21.1 Dark Down 27.6 165.1 Low 04:55:43 - 05:25:43 4631
Indian Springs 05:10:38 -21.9 Dark Down 28.1 166.1 Low 04:55:38 - 05:25:38 4628
Henderson 05:10:35 -22.7 Dark Down 28.7 166.7 Low 04:55:35 - 05:25:35 4608
Lone Pine 05:10:49 -20.6 Dark Down 27.6 163.8 Low 04:55:49 - 05:25:49 4594
Patrick 05:10:30 -23.7 Dark Down 29.5 167.8 Low 04:55:30 - 05:25:30 4587
DCO 05:10:27 -24.3 Dark Down 30.0 168.5 Low 04:55:27 - 05:25:27 4578
Searchlight/Boulder City 05:10:35 -23.1 Dark Down 29.3 166.7 Low 04:55:35 - 05:25:35 4575
Kingman/Dolan Springs 05:10:31 -23.8 Dark Down 29.7 167.6 Low 04:55:31 - 05:25:31 4571
Laughlin/Bullhead City 05:10:33 -23.5 Dark Down 29.7 167.0 Low 04:55:33 - 05:25:33 4563
Mohave Valley 05:10:34 -23.8 Dark Down 29.9 167.0 Low 04:55:34 - 05:25:34 4547
Lake Havasu City 05:10:33 -24.2 Dark Down 30.4 167.2 Up 04:55:33 - 05:25:33 4527
Parker 05:10:33 -24.5 Dark Down 30.7 167.2 Up 04:55:33 - 05:25:33 4506
CPSLO 05:11:02 -20.2 Dark Down 28.2 161.0 Low 04:56:02 - 05:26:02 4477
Blythe 05:10:34 -24.7 Dark Down 31.2 166.8 Up 04:55:34 - 05:25:34 4471
Idyllwild 05:10:44 -23.5 Dark Down 30.6 164.7 Up 04:55:44 - 05:25:44 4447
Wildwood 05:10:53 -22.2 Dark Down 29.9 162.9 Low 04:55:53 - 05:25:53 4439
Calipatria 05:10:40 -24.6 Dark Down 31.5 165.8 Up 04:55:40 - 05:25:40 4427
Yuma 05:10:35 -25.4 Dark Down 32.1 166.7 Up 04:55:35 - 05:25:35 4413

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 10GX34, (2019/07/22 05:09UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 25.13 107
Nunki          18:55:15.9 -26:17:49  2.0  8.25  75
PPM 268291     18:21:31.4 -24:54:54  6.0  0.93  83
PPM 268251     18:19:54.9 -23:18:55  7.9  0.72  83
PPM 268272     18:20:51.9 -23:56:35  9.2  0.17  83
10GX34         18:20:12.9 -24:01:50 18.6        83
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:27:00 UT

Marc W. Buie, Southwest Research Institute

RECON