RECON: TNO occultation with 10GX34

Event between 10GX34 and star UC4-330-150690 with event index number of 303486

Geocentric closest approach at 2019/07/01 09:03:34 UTC

J2000 position of star is 18:24:02.7 -24:04:41
Equinox of date position of star is 18:25:11.7 -24:04:01
Stellar brightness R=16.2, use SENSEUP=128
Star is 165 degrees from the moon. Moon is 3% illuminated.
TNO apparent brightness V=20.6

[RECON map]
TNO is 16.6 AU from the Sun and 15.5 AU from the Earth.
The TNO is moving 20.7 km/sec on the sky relative to the star, or, 6.6 arcsec/hr.
The 1-sigma error in the time of the event is 139 seconds.
The 1-sigma cross-track error in the shadow position is 875 km.
The sky-plane scale is 11271.8 km/arcsec.

The TNO has an absolute magnitude Hv=8.5
Diameter=120.8 km assuming a 5% albedo -- 5.8 sec chord
Diameter=49.3 km assuming a 30% albedo -- 2.4 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 10GX34, (2019/07/01 09:04UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.4 -26:28:25  0.9 25.97 167
Nunki          18:56:28.4 -26:16:15  2.0  7.40 157
PPM 268291     18:22:43.4 -24:54:17  6.0  1.01 165
PPM 268419     18:27:52.9 -23:25:22  8.4  0.88 164
PPM 268340     18:24:32.2 -24:00:29  9.1  0.17 165
10GX34         18:25:14.2 -24:03:59 16.2       164
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 12.7 km RECON observability=0.6 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)
Summerland 09:02:43 -15.8 AT Down 14.2 197.9 Really Low 08:50:40 - 09:14:46 6409
Kelowna 09:02:42 -15.7 AT Down 14.0 198.2 Really Low 08:50:39 - 09:14:45 6408
Penticton 09:02:42 -16.1 AT Down 14.4 198.1 Really Low 08:50:39 - 09:14:45 6397
Okanagan Falls 09:02:41 -16.3 AT Down 14.6 198.1 Really Low 08:50:38 - 09:14:44 6391
Oliver 09:02:41 -16.5 AT Down 14.8 198.1 Really Low 08:50:38 - 09:14:44 6386
Anarchist Mountain Observatory 09:02:41 -16.6 AT Down 14.9 198.3 Really Low 08:50:38 - 09:14:44 6379
Oroville 09:02:41 -16.7 AT Down 15.0 198.3 Really Low 08:50:38 - 09:14:44 6377
Tonasket 09:02:41 -16.9 AT Down 15.2 198.3 Really Low 08:50:38 - 09:14:44 6369
Okanogan 09:02:41 -17.2 AT Down 15.5 198.2 Really Low 08:50:38 - 09:14:44 6359
Brewster 09:02:41 -17.5 AT Down 15.8 198.0 Really Low 08:50:38 - 09:14:44 6351
Manson/Chelan 09:02:42 -17.8 AT Down 16.1 197.7 Really Low 08:50:39 - 09:14:45 6346
Entiat 09:02:42 -18.0 Dark Down 16.3 197.6 Really Low 08:50:39 - 09:14:45 6339
Wenatchee 09:02:42 -18.3 Dark Down 16.6 197.6 Really Low 08:50:39 - 09:14:45 6330
Ellensburg 09:02:42 -18.7 Dark Down 17.0 197.4 Really Low 08:50:39 - 09:14:45 6317
Yakima 09:02:41 -19.1 Dark Down 17.4 197.4 Really Low 08:50:38 - 09:14:44 6302
Toppenish/White Swan 09:02:41 -19.3 Dark Down 17.6 197.6 Really Low 08:50:38 - 09:14:44 6293
Pasco 09:02:36 -19.2 Dark Down 17.4 198.8 Really Low 08:50:33 - 09:14:39 6279
Goldendale 09:02:41 -19.9 Dark Down 18.2 197.3 Really Low 08:50:38 - 09:14:44 6274
PNWRO 09:02:35 -19.4 Dark Down 17.6 199.0 Really Low 08:50:32 - 09:14:38 6268
George/Umatilla 09:02:37 -19.6 Dark Down 17.8 198.6 Really Low 08:50:34 - 09:14:40 6268
The Dalles 09:02:43 -20.2 Dark Down 18.5 196.9 Really Low 08:50:40 - 09:14:46 6268
Maupin 09:02:42 -20.6 Dark Down 18.9 197.1 Really Low 08:50:39 - 09:14:45 6251
Madras/Culver 09:02:41 -21.1 Dark Down 19.4 197.1 Really Low 08:50:38 - 09:14:44 6229
Sisters 09:02:42 -21.5 Dark Down 19.8 196.7 Really Low 08:50:39 - 09:14:45 6218
Redmond 09:02:41 -21.5 Dark Down 19.8 197.1 Really Low 08:50:38 - 09:14:44 6215
Bend 09:02:41 -21.7 Dark Down 20.0 197.0 Low 08:50:38 - 09:14:44 6207
Oregon Observatory 09:02:41 -21.9 Dark Down 20.2 196.9 Low 08:50:38 - 09:14:44 6200
La Pine/Gilchrist 09:02:41 -22.1 Dark Down 20.4 196.8 Low 08:50:38 - 09:14:44 6192
North Lake 09:02:39 -22.4 Dark Down 20.7 197.4 Low 08:50:36 - 09:14:42 6169
Chiloquin 09:02:41 -23.3 Dark Down 21.5 196.6 Low 08:50:38 - 09:14:44 6146
Paisley 09:02:37 -22.9 Dark Down 21.1 197.8 Low 08:50:34 - 09:14:40 6143
Klamath Falls 09:02:41 -23.6 Dark Down 21.9 196.7 Low 08:50:38 - 09:14:44 6130
Lakeview 09:02:35 -23.4 Dark Down 21.6 198.1 Low 08:50:32 - 09:14:38 6119
Tulelake 09:02:39 -23.8 Dark Down 22.1 197.0 Low 08:50:36 - 09:14:42 6116
Cedarville 09:02:34 -24.0 Dark Down 22.2 198.3 Low 08:50:31 - 09:14:37 6087
Fall River/Burney 09:02:38 -24.7 Dark Down 22.9 197.2 Low 08:50:35 - 09:14:41 6073
Susanville 09:02:34 -25.1 Dark Down 23.3 198.0 Low 08:50:31 - 09:14:37 6038
Greenville 09:02:35 -25.5 Dark Down 23.7 197.8 Low 08:50:32 - 09:14:38 6027
Gimple 09:02:35 -25.4 Dark Down 23.7 197.8 Low 08:50:32 - 09:14:38 6026
Quincy 09:02:35 -25.7 Dark Down 23.9 197.8 Low 08:50:32 - 09:14:38 6017
Portola 09:02:33 -25.7 Dark Down 23.9 198.3 Low 08:50:30 - 09:14:36 6007
Reno 09:02:30 -25.8 Dark Down 24.0 198.9 Low 08:50:27 - 09:14:33 5989
Carson City 09:02:30 -26.2 Dark Down 24.3 199.0 Low 08:50:27 - 09:14:33 5971
Gardnerville 09:02:29 -26.4 Dark Down 24.5 199.1 Low 08:50:26 - 09:14:32 5958
Yerington 09:02:27 -26.2 Dark Down 24.3 199.6 Low 08:50:24 - 09:14:30 5956
Hawthorne 09:02:24 -26.6 Dark Down 24.6 200.2 Low 08:50:21 - 09:14:27 5928
Lee Vining 09:02:26 -27.2 Dark Down 25.3 199.8 Low 08:50:23 - 09:14:29 5902
Tonopah 09:02:19 -26.7 Dark Down 24.7 201.6 Low 08:50:16 - 09:14:22 5891
Bishop 09:02:22 -27.6 Dark Down 25.7 200.6 Low 08:50:19 - 09:14:25 5865
Niwot 09:01:38 -21.1 Dark Down 18.7 212.0 Really Low 08:49:35 - 09:13:41 5845
Beatty 09:02:15 -27.7 Dark Down 25.6 202.2 Low 08:50:12 - 09:14:18 5824
Lone Pine 09:02:20 -28.3 Dark Down 26.3 201.0 Low 08:50:17 - 09:14:23 5820
Indian Springs 09:02:11 -27.7 Dark Down 25.6 203.3 Low 08:50:08 - 09:14:14 5795
CPSLO 09:02:29 -30.1 Dark Down 28.2 198.8 Low 08:50:26 - 09:14:32 5769
Henderson 09:02:07 -28.0 Dark Down 25.9 204.0 Low 08:50:04 - 09:14:10 5758
Searchlight/Boulder City 09:02:06 -28.5 Dark Down 26.4 204.2 Low 08:50:03 - 09:14:09 5725
Patrick 09:02:02 -28.3 Dark Down 26.1 205.2 Low 08:49:59 - 09:14:05 5710
Laughlin/Bullhead City 09:02:04 -28.7 Dark Down 26.5 204.6 Low 08:50:01 - 09:14:07 5704
Kingman/Dolan Springs 09:02:02 -28.5 Dark Down 26.3 205.1 Low 08:49:59 - 09:14:05 5699
Mohave Valley 09:02:04 -29.0 Dark Down 26.8 204.7 Low 08:50:01 - 09:14:07 5688
DCO 09:01:59 -28.3 Dark Down 26.1 205.9 Low 08:49:56 - 09:14:02 5684
Wildwood 09:02:19 -30.8 Dark Down 28.8 201.0 Low 08:50:16 - 09:14:22 5682
Lake Havasu City 09:02:02 -29.3 Dark Down 27.0 205.0 Low 08:49:59 - 09:14:05 5662
Idyllwild 09:02:11 -30.7 Dark Down 28.5 202.9 Low 08:50:08 - 09:14:14 5643
Parker 09:02:02 -29.6 Dark Down 27.4 205.1 Low 08:49:59 - 09:14:05 5641
Blythe 09:02:02 -30.2 Dark Down 27.9 204.9 Low 08:49:59 - 09:14:05 5613
Calipatria 09:02:06 -30.9 Dark Down 28.7 204.1 Low 08:50:03 - 09:14:09 5593
Yuma 09:02:01 -31.0 Dark Down 28.8 205.1 Low 08:49:58 - 09:14:04 5557

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, (2019/07/01 09:04UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 25.97 167
Nunki          18:55:15.9 -26:17:49  2.0  7.40 157
PPM 268291     18:21:31.4 -24:54:54  6.0  1.01 165
PPM 268419     18:26:41.7 -23:26:08  8.4  0.88 164
PPM 268340     18:23:20.7 -24:01:10  9.1  0.17 165
10GX34         18:24:02.7 -24:04:41 16.2       165
Positions are for J2000

Event circumstances last updated at 2018/10/24 21:42:57 UT

Marc W. Buie, Southwest Research Institute

RECON