RECON: TNO occultation with 10GX34

Event between 10GX34 and star UC4-330-157792 with event index number of 303388

Geocentric closest approach at 2019/06/01 07:14:10 UTC

J2000 position of star is 18:29:36.2 -24:07:32
Equinox of date position of star is 18:30:45.2 -24:06:43
Stellar brightness R=15.6, use SENSEUP=128
Star is 127 degrees from the moon. Moon is 5% 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 17.7 km/sec on the sky relative to the star, or, 5.6 arcsec/hr.
The 1-sigma error in the time of the event is 162 seconds.
The 1-sigma cross-track error in the shadow position is 971 km.
The sky-plane scale is 11345.4 km/arcsec.

The TNO has an absolute magnitude Hv=8.5
Diameter=120.8 km assuming a 5% albedo -- 6.8 sec chord
Diameter=49.3 km assuming a 30% albedo -- 2.8 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 10GX34, (2019/06/01 07:14UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.1 -26:28:24  0.9 27.21 153
Nunki          18:56:28.1 -26:16:15  2.0  6.20 121
PPM 268291     18:22:43.1 -24:54:17  6.0  2.00 129
PPM 268473     18:30:27.7 -24:26:23  8.3  0.34 127
PPM 268493     18:31:35.3 -24:02:56  8.6  0.19 127
10GX34         18:30:47.4 -24:06:41 15.6       127
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 11.1 km RECON observability=0.3 and success probability=6.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 07:16:45 -17.6 AT Down 8.6 145.3 Really Low 07:02:44 - 07:30:46 2511
Summerland 07:16:47 -17.6 AT Down 8.5 145.0 Really Low 07:02:46 - 07:30:48 2502
Penticton 07:16:47 -17.9 AT Down 8.9 145.1 Really Low 07:02:46 - 07:30:48 2493
Okanagan Falls 07:16:48 -18.1 Dark Down 9.0 145.1 Really Low 07:02:47 - 07:30:49 2484
Oliver 07:16:48 -18.3 Dark Down 9.2 145.1 Really Low 07:02:47 - 07:30:49 2478
Anarchist Mountain Observatory 07:16:48 -18.5 Dark Down 9.4 145.2 Really Low 07:02:47 - 07:30:49 2475
Oroville 07:16:49 -18.5 Dark Down 9.4 145.2 Really Low 07:02:48 - 07:30:50 2470
Tonasket 07:16:49 -18.7 Dark Down 9.6 145.1 Really Low 07:02:48 - 07:30:50 2461
Okanogan 07:16:51 -19.1 Dark Down 9.8 145.0 Really Low 07:02:50 - 07:30:52 2444
Brewster 07:16:52 -19.3 Dark Down 10.0 144.8 Really Low 07:02:51 - 07:30:53 2428
Manson/Chelan 07:16:54 -19.5 Dark Down 10.0 144.5 Really Low 07:02:53 - 07:30:55 2411
Entiat 07:16:55 -19.7 Dark Down 10.1 144.4 Really Low 07:02:54 - 07:30:56 2400
Wenatchee 07:16:56 -19.9 Dark Down 10.3 144.3 Really Low 07:02:55 - 07:30:57 2387
Ellensburg 07:16:58 -20.3 Dark Down 10.6 144.1 Really Low 07:02:57 - 07:30:59 2363
Pasco 07:16:55 -21.2 Dark Down 11.7 145.2 Really Low 07:02:54 - 07:30:56 2360
PNWRO 07:16:55 -21.5 Dark Down 12.0 145.3 Really Low 07:02:54 - 07:30:56 2354
Yakima 07:16:59 -20.7 Dark Down 10.9 144.0 Really Low 07:02:58 - 07:31:00 2345
George/Umatilla 07:16:56 -21.5 Dark Down 11.9 144.9 Really Low 07:02:55 - 07:30:57 2340
Toppenish/White Swan 07:16:59 -20.9 Dark Down 11.1 144.1 Really Low 07:02:58 - 07:31:00 2338
Niwot 07:16:15 -27.7 Dark Down 22.0 156.4 Low 07:02:14 - 07:30:16 2329
Goldendale 07:17:02 -21.4 Dark Down 11.4 143.7 Really Low 07:03:01 - 07:31:03 2303
The Dalles 07:17:04 -21.6 Dark Down 11.4 143.4 Really Low 07:03:03 - 07:31:05 2285
Maupin 07:17:04 -22.0 Dark Down 11.8 143.4 Really Low 07:03:03 - 07:31:05 2267
Madras/Culver 07:17:06 -22.6 Dark Down 12.2 143.3 Really Low 07:03:05 - 07:31:07 2239
Redmond 07:17:07 -22.9 Dark Down 12.5 143.2 Really Low 07:03:06 - 07:31:08 2220
Sisters 07:17:08 -22.8 Dark Down 12.3 142.9 Really Low 07:03:07 - 07:31:09 2212
Bend 07:17:08 -23.1 Dark Down 12.6 143.1 Really Low 07:03:07 - 07:31:09 2206
Oregon Observatory 07:17:09 -23.2 Dark Down 12.7 143.0 Really Low 07:03:08 - 07:31:10 2195
La Pine/Gilchrist 07:17:10 -23.4 Dark Down 12.9 142.9 Really Low 07:03:09 - 07:31:11 2183
North Lake 07:17:09 -23.9 Dark Down 13.5 143.3 Really Low 07:03:08 - 07:31:10 2175
Paisley 07:17:09 -24.5 Dark Down 14.1 143.5 Really Low 07:03:08 - 07:31:10 2154
Lakeview 07:17:10 -25.1 Dark Down 14.6 143.6 Really Low 07:03:09 - 07:31:11 2132
Chiloquin 07:17:14 -24.5 Dark Down 13.6 142.5 Really Low 07:03:13 - 07:31:15 2117
Cedarville 07:17:11 -25.7 Dark Down 15.2 143.7 Really Low 07:03:10 - 07:31:12 2101
Klamath Falls 07:17:15 -24.8 Dark Down 13.9 142.5 Really Low 07:03:14 - 07:31:16 2101
Tulelake 07:17:15 -25.1 Dark Down 14.2 142.7 Really Low 07:03:14 - 07:31:16 2093
Fall River/Burney 07:17:16 -26.0 Dark Down 15.0 142.6 Really Low 07:03:15 - 07:31:17 2046
Susanville 07:17:15 -26.8 Dark Down 15.8 143.1 Really Low 07:03:14 - 07:31:16 2029
Gimple 07:17:17 -27.0 Dark Down 16.0 142.9 Really Low 07:03:16 - 07:31:18 2008
Greenville 07:17:17 -27.0 Dark Down 15.9 142.8 Really Low 07:03:16 - 07:31:18 2006
Reno 07:17:15 -27.7 Dark Down 16.9 143.6 Really Low 07:03:14 - 07:31:16 2000
Portola 07:17:16 -27.4 Dark Down 16.4 143.2 Really Low 07:03:15 - 07:31:17 1999
Quincy 07:17:18 -27.2 Dark Down 16.1 142.8 Really Low 07:03:17 - 07:31:19 1995
Yerington 07:17:13 -28.4 Dark Down 17.7 144.1 Really Low 07:03:12 - 07:31:14 1984
Carson City 07:17:15 -28.1 Dark Down 17.2 143.6 Really Low 07:03:14 - 07:31:16 1980
Tonopah 07:17:08 -29.5 Dark Down 19.3 145.5 Really Low 07:03:07 - 07:31:09 1975
Hawthorne 07:17:12 -28.9 Dark Down 18.3 144.4 Really Low 07:03:11 - 07:31:13 1969
Gardnerville 07:17:15 -28.3 Dark Down 17.4 143.6 Really Low 07:03:14 - 07:31:16 1967
Lee Vining 07:17:15 -29.4 Dark Down 18.5 143.9 Really Low 07:03:14 - 07:31:16 1925
Indian Springs 07:17:05 -31.1 Dark Down 21.2 146.5 Low 07:03:04 - 07:31:06 1923
Beatty 07:17:08 -30.7 Dark Down 20.5 145.7 Low 07:03:07 - 07:31:09 1918
Bishop 07:17:14 -30.1 Dark Down 19.3 144.4 Really Low 07:03:13 - 07:31:15 1907
Henderson 07:17:03 -31.7 Dark Down 22.0 147.0 Low 07:03:02 - 07:31:04 1906
Patrick 07:17:00 -32.4 Dark Down 23.0 147.8 Low 07:02:59 - 07:31:01 1893
DCO 07:16:57 -32.8 Dark Down 23.5 148.3 Low 07:02:56 - 07:30:58 1890
Kingman/Dolan Springs 07:17:01 -32.6 Dark Down 23.1 147.6 Low 07:03:00 - 07:31:02 1875
Searchlight/Boulder City 07:17:04 -32.3 Dark Down 22.5 146.9 Low 07:03:03 - 07:31:05 1873
Lone Pine 07:17:15 -30.9 Dark Down 20.1 144.5 Low 07:03:14 - 07:31:16 1869
Laughlin/Bullhead City 07:17:03 -32.6 Dark Down 22.9 147.1 Low 07:03:02 - 07:31:04 1862
Mohave Valley 07:17:04 -32.9 Dark Down 23.1 147.1 Low 07:03:03 - 07:31:05 1845
Lake Havasu City 07:17:03 -33.3 Dark Down 23.6 147.2 Low 07:03:02 - 07:31:04 1826
Parker 07:17:04 -33.7 Dark Down 23.9 147.1 Low 07:03:03 - 07:31:05 1804
Blythe 07:17:06 -34.2 Dark Down 24.2 146.8 Low 07:03:05 - 07:31:07 1764
CPSLO 07:17:27 -31.8 Dark Down 19.9 142.1 Really Low 07:03:26 - 07:31:28 1723
Idyllwild 07:17:15 -33.9 Dark Down 23.1 145.0 Low 07:03:14 - 07:31:16 1721
Calipatria 07:17:11 -34.6 Dark Down 24.2 145.9 Low 07:03:10 - 07:31:12 1710
Yuma 07:17:07 -35.1 Dark Down 24.9 146.5 Low 07:03:06 - 07:31:08 1703
Wildwood 07:17:22 -33.3 Dark Down 21.9 143.5 Low 07:03:21 - 07:31:23 1698

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, (2019/06/01 07:14UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 27.21 153
Nunki          18:55:15.9 -26:17:49  2.0  6.20 121
PPM 268291     18:21:31.4 -24:54:54  6.0  2.00 129
PPM 268473     18:29:16.3 -24:27:13  8.3  0.34 127
PPM 268493     18:30:24.1 -24:03:48  8.6  0.19 127
10GX34         18:29:36.2 -24:07:32 15.6       127
Positions are for J2000

Event circumstances last updated at 2018/10/24 21:32:17 UT

Marc W. Buie, Southwest Research Institute

RECON