RECON: TNO occultation with 10GX34

Event between 10GX34 and star UC4-330-161662 with event index number of 303343

Geocentric closest approach at 2019/05/06 09:42:37 UTC

J2000 position of star is 18:32:54.1 -24:09:50
Equinox of date position of star is 18:34:03.1 -24:08:55
Stellar brightness R=16.0, use SENSEUP=128
Star is 146 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=20.9

[RECON map]
TNO is 16.6 AU from the Sun and 15.9 AU from the Earth.
The TNO is moving 9.3 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 315 seconds.
The 1-sigma cross-track error in the shadow position is 943 km.
The sky-plane scale is 11545.9 km/arcsec.

The TNO has an absolute magnitude Hv=8.5
Diameter=120.8 km assuming a 5% albedo -- 13.0 sec chord
Diameter=49.3 km assuming a 30% albedo -- 5.3 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 10GX34, (2019/05/06 09:43UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:35.8 -26:28:24  0.9 27.94 170
Nunki          18:56:27.8 -26:16:16  2.0  5.49 140
PPM 268694     18:39:41.3 -23:29:13  6.3  1.44 144
25 Sgr         18:35:43.7 -24:12:21  6.7  0.38 145
PPM 268529     18:33:15.0 -24:09:35  9.8  0.19 146
10GX34         18:34:05.0 -24:08:53 16.0       145
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 2.9 sigma about the mid-time.
The median site spacing is 7.1 km RECON observability=0.5 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 09:46:48 -19.1 Dark Down 12.2 155.0 Really Low 09:31:48 - 10:01:48 8302
Summerland 09:46:50 -19.2 Dark Down 12.1 154.7 Really Low 09:31:50 - 10:01:50 8294
Penticton 09:46:49 -19.5 Dark Down 12.5 154.8 Really Low 09:31:49 - 10:01:49 8285
Okanagan Falls 09:46:51 -19.6 Dark Down 12.6 154.8 Really Low 09:31:51 - 10:01:51 8278
Oliver 09:46:51 -19.8 Dark Down 12.8 154.8 Really Low 09:31:51 - 10:01:51 8272
Anarchist Mountain Observatory 09:46:50 -19.9 Dark Down 13.0 154.9 Really Low 09:31:50 - 10:01:50 8269
Oroville 09:46:51 -20.0 Dark Down 13.0 154.9 Really Low 09:31:51 - 10:01:51 8264
Tonasket 09:46:52 -20.2 Dark Down 13.2 154.8 Really Low 09:31:52 - 10:01:52 8255
Okanogan 09:46:54 -20.5 Dark Down 13.5 154.7 Really Low 09:31:54 - 10:01:54 8239
Brewster 09:46:56 -20.8 Dark Down 13.7 154.5 Really Low 09:31:56 - 10:01:56 8224
Manson/Chelan 09:47:00 -21.1 Dark Down 13.8 154.1 Really Low 09:32:00 - 10:02:00 8209
Entiat 09:47:01 -21.3 Dark Down 14.0 154.1 Really Low 09:32:01 - 10:02:01 8198
Wenatchee 09:47:02 -21.6 Dark Down 14.2 153.9 Really Low 09:32:02 - 10:02:02 8185
Ellensburg 09:47:05 -22.0 Dark Down 14.5 153.7 Really Low 09:32:05 - 10:02:05 8163
Pasco 09:46:58 -22.2 Dark Down 15.6 154.9 Really Low 09:31:58 - 10:01:58 8160
PNWRO 09:46:58 -22.3 Dark Down 15.8 155.0 Really Low 09:31:58 - 10:01:58 8153
Yakima 09:47:07 -22.4 Dark Down 14.8 153.7 Really Low 09:32:07 - 10:02:07 8146
George/Umatilla 09:47:01 -22.5 Dark Down 15.8 154.6 Really Low 09:32:01 - 10:02:01 8141
Toppenish/White Swan 09:47:07 -22.5 Dark Down 15.1 153.8 Really Low 09:32:07 - 10:02:07 8140
Niwot 09:45:26 -21.2 Dark Down 24.6 166.9 Low 09:30:26 - 10:00:26 8116
Goldendale 09:47:12 -23.1 Dark Down 15.4 153.4 Really Low 09:32:12 - 10:02:12 8106
The Dalles 09:47:15 -23.4 Dark Down 15.5 153.0 Really Low 09:32:15 - 10:02:15 8089
Maupin 09:47:15 -23.8 Dark Down 15.9 153.1 Really Low 09:32:15 - 10:02:15 8072
Madras/Culver 09:47:18 -24.3 Dark Down 16.4 153.0 Really Low 09:32:18 - 10:02:18 8045
Redmond 09:47:20 -24.6 Dark Down 16.7 152.9 Really Low 09:32:20 - 10:02:20 8027
Sisters 09:47:21 -24.7 Dark Down 16.6 152.5 Really Low 09:32:21 - 10:02:21 8020
Bend 09:47:21 -24.8 Dark Down 16.9 152.7 Really Low 09:32:21 - 10:02:21 8014
Oregon Observatory 09:47:23 -25.0 Dark Down 17.0 152.6 Really Low 09:32:23 - 10:02:23 8003
La Pine/Gilchrist 09:47:23 -25.2 Dark Down 17.1 152.5 Really Low 09:32:23 - 10:02:23 7992
North Lake 09:47:21 -25.4 Dark Down 17.7 153.0 Really Low 09:32:21 - 10:02:21 7983
Paisley 09:47:20 -25.8 Dark Down 18.3 153.2 Really Low 09:32:20 - 10:02:20 7964
Lakeview 09:47:20 -26.1 Dark Down 18.9 153.3 Really Low 09:32:20 - 10:02:20 7942
Chiloquin 09:47:30 -26.3 Dark Down 18.0 152.0 Really Low 09:32:30 - 10:02:30 7929
Klamath Falls 09:47:30 -26.6 Dark Down 18.4 152.1 Really Low 09:32:30 - 10:02:30 7913
Cedarville 09:47:20 -26.6 Dark Down 19.5 153.4 Really Low 09:32:20 - 10:02:20 7912
Tulelake 09:47:29 -26.7 Dark Down 18.7 152.3 Really Low 09:32:29 - 10:02:29 7906
Fall River/Burney 09:47:31 -27.5 Dark Down 19.5 152.2 Really Low 09:32:31 - 10:02:31 7860
Susanville 09:47:28 -27.8 Dark Down 20.3 152.8 Low 09:32:28 - 10:02:28 7843
Gimple 09:47:29 -28.1 Dark Down 20.5 152.5 Low 09:32:29 - 10:02:29 7823
Greenville 09:47:30 -28.1 Dark Down 20.5 152.5 Low 09:32:30 - 10:02:30 7822
Portola 09:47:28 -28.2 Dark Down 20.9 152.8 Low 09:32:28 - 10:02:28 7814
Reno 09:47:24 -28.2 Dark Down 21.4 153.4 Low 09:32:24 - 10:02:24 7814
Quincy 09:47:31 -28.3 Dark Down 20.7 152.4 Low 09:32:31 - 10:02:31 7811
Yerington 09:47:20 -28.4 Dark Down 22.1 153.8 Low 09:32:20 - 10:02:20 7798
Carson City 09:47:25 -28.5 Dark Down 21.7 153.3 Low 09:32:25 - 10:02:25 7795
Tonopah 09:47:08 -28.4 Dark Down 23.6 155.4 Low 09:32:08 - 10:02:08 7788
Hawthorne 09:47:17 -28.6 Dark Down 22.7 154.2 Low 09:32:17 - 10:02:17 7784
Gardnerville 09:47:25 -28.7 Dark Down 22.0 153.3 Low 09:32:25 - 10:02:25 7782
Lee Vining 09:47:22 -29.3 Dark Down 23.1 153.7 Low 09:32:22 - 10:02:22 7741
Indian Springs 09:46:59 -29.0 Dark Down 25.4 156.6 Low 09:31:59 - 10:01:59 7736
Beatty 09:47:07 -29.2 Dark Down 24.8 155.6 Low 09:32:07 - 10:02:07 7732
Bishop 09:47:19 -29.5 Dark Down 23.8 154.2 Low 09:32:19 - 10:02:19 7723
Henderson 09:46:55 -29.1 Dark Down 26.1 157.1 Low 09:31:55 - 10:01:55 7719
Patrick 09:46:46 -29.1 Dark Down 27.1 158.0 Low 09:31:46 - 10:01:46 7704
DCO 09:46:40 -29.0 Dark Down 27.6 158.6 Low 09:31:40 - 10:01:40 7700
Kingman/Dolan Springs 09:46:48 -29.3 Dark Down 27.2 157.8 Low 09:31:48 - 10:01:48 7687
Searchlight/Boulder City 09:46:54 -29.5 Dark Down 26.7 157.0 Low 09:31:54 - 10:01:54 7686
Lone Pine 09:47:18 -30.0 Dark Down 24.6 154.4 Low 09:32:18 - 10:02:18 7686
Laughlin/Bullhead City 09:46:52 -29.6 Dark Down 27.1 157.3 Low 09:31:52 - 10:01:52 7675
Mohave Valley 09:46:53 -29.8 Dark Down 27.3 157.3 Low 09:31:53 - 10:01:53 7659
Lake Havasu City 09:46:52 -30.0 Dark Down 27.8 157.4 Low 09:31:52 - 10:01:52 7640
Parker 09:46:52 -30.3 Dark Down 28.1 157.4 Low 09:31:52 - 10:01:52 7618
Blythe 09:46:57 -30.8 Dark Down 28.5 157.0 Low 09:31:57 - 10:01:57 7580
CPSLO 09:47:42 -32.2 Dark Down 24.9 151.8 Low 09:32:42 - 10:02:42 7548
Idyllwild 09:47:13 -31.7 Dark Down 27.7 155.0 Low 09:32:13 - 10:02:13 7541
Calipatria 09:47:05 -31.7 Dark Down 28.7 156.0 Low 09:32:05 - 10:02:05 7528
Wildwood 09:47:28 -32.3 Dark Down 26.7 153.4 Low 09:32:28 - 10:02:28 7521
Yuma 09:46:57 -31.6 Dark Down 29.3 156.8 Low 09:31:57 - 10:01:57 7520

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, (2019/05/06 09:43UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 27.94 170
Nunki          18:55:15.9 -26:17:49  2.0  5.49 140
PPM 268694     18:38:30.7 -23:30:18  6.3  1.44 144
25 Sgr         18:34:32.8 -24:13:21  6.7  0.38 145
PPM 268529     18:32:04.1 -24:10:30  9.8  0.19 146
10GX34         18:32:54.1 -24:09:50 16.0       146
Positions are for J2000

Event circumstances last updated at 2018/10/24 21:22:39 UT

Marc W. Buie, Southwest Research Institute

RECON