RECON: TNO occultation with 10GX34

Event between 10GX34 and star GA0660:36346830 with event index number of 304519

Geocentric closest approach at 2020/05/11 10:28:45 UTC

J2000 position of star is 19:00:09.2 -22:18:28
Equinox of date position of star is 19:01:20.5 -22:16:44
Stellar brightness G=17.2, use SENSEUP=128
Star is 2 degrees from the moon. Moon is 80% 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 9.1 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 766 seconds.
The 1-sigma cross-track error in the shadow position is 2192 km.
The sky-plane scale is 11567.5 km/arcsec.

The TNO has an absolute magnitude Hv=8.5
Diameter=120.8 km assuming a 5% albedo -- 13.3 sec chord
Diameter=49.3 km assuming a 30% albedo -- 5.4 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 10GX34, (2020/05/11 10:29UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:39.5 -26:28:32  0.9 34.46  34
Nunki          18:56:31.6 -26:16:11  2.0  4.14   3
PPM 269213     19:02:51.3 -22:39:54  6.2  0.52   1
PPM 269147     18:59:38.4 -22:30:02  6.6  0.46   2
PPM 269209     19:02:30.9 -22:05:14  9.2  0.33   2
10GX34         19:01:22.6 -22:16:41 17.2         2
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 1.2 sigma about the mid-time.
The median site spacing is 11.6 km RECON observability=0.7 and success probability=1.0%
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 10:32:01 -13.3 AT Up 16.0 164.0 Really Low 10:17:01 - 10:47:01 7000
Kelowna 10:32:03 -13.7 AT Up 16.3 163.8 Really Low 10:17:03 - 10:47:03 6983
Summerland 10:32:04 -14.0 AT Up 16.5 163.6 Really Low 10:17:04 - 10:47:04 6970
Penticton 10:32:04 -14.0 AT Up 16.6 163.7 Really Low 10:17:04 - 10:47:04 6969
Oliver 10:32:05 -14.2 AT Up 16.9 163.7 Really Low 10:17:05 - 10:47:05 6956
Anarchist Mountain Observatory 10:32:04 -14.3 AT Up 17.1 163.8 Really Low 10:17:04 - 10:47:04 6953
Tonasket 10:32:04 -14.6 AT Up 17.4 163.7 Really Low 10:17:04 - 10:47:04 6939
Okanogan 10:32:07 -14.9 AT Up 17.7 163.6 Really Low 10:17:07 - 10:47:07 6923
Brewster 10:32:08 -15.2 AT Up 17.9 163.4 Really Low 10:17:08 - 10:47:08 6909
Manson/Chelan 10:32:11 -15.5 AT Up 18.1 163.0 Really Low 10:17:11 - 10:47:11 6894
Entiat 10:32:13 -15.7 AT Up 18.3 162.9 Really Low 10:17:13 - 10:47:13 6884
Wenatchee 10:32:13 -15.9 AT Up 18.5 162.8 Really Low 10:17:13 - 10:47:13 6872
Victoria 10:32:33 -16.2 AT Up 16.8 160.1 Really Low 10:17:33 - 10:47:33 6868
Ellensburg 10:32:17 -16.3 AT Up 18.8 162.6 Really Low 10:17:17 - 10:47:17 6851
Pasco 10:32:08 -16.3 AT Up 19.8 163.8 Really Low 10:17:08 - 10:47:08 6840
PNWRO 10:32:06 -16.4 AT Up 20.1 164.0 Low 10:17:06 - 10:47:06 6833
Yakima 10:32:16 -16.7 AT Up 19.2 162.5 Really Low 10:17:16 - 10:47:16 6832
Toppenish/White Swan 10:32:17 -16.8 AT Up 19.5 162.7 Really Low 10:17:17 - 10:47:17 6826
Goldendale 10:32:21 -17.4 AT Up 19.9 162.2 Really Low 10:17:21 - 10:47:21 6794
The Dalles 10:32:25 -17.7 AT Up 20.1 161.8 Low 10:17:25 - 10:47:25 6777
Maupin 10:32:24 -18.0 AT Up 20.5 161.9 Low 10:17:24 - 10:47:24 6760
Niwot 10:30:17 -13.6 AT Up 27.5 176.9 Low 10:15:17 - 10:45:17 6734
SwRI 10:30:19 -13.7 AT Up 27.6 176.8 Low 10:15:19 - 10:45:19 6727
Redmond 10:32:27 -18.7 Dark Up 21.3 161.7 Low 10:17:27 - 10:47:27 6716
Sisters 10:32:31 -18.9 Dark Up 21.2 161.3 Low 10:17:31 - 10:47:31 6711
Bend 10:32:30 -19.0 Dark Up 21.5 161.6 Low 10:17:30 - 10:47:30 6704
Oregon Observatory 10:32:30 -19.2 Dark Up 21.6 161.4 Low 10:17:30 - 10:47:30 6693
La Pine/Gilchrist 10:32:31 -19.3 Dark Up 21.8 161.3 Low 10:17:31 - 10:47:31 6682
North Lake 10:32:26 -19.4 Dark Up 22.4 161.8 Low 10:17:26 - 10:47:26 6671
Paisley 10:32:26 -19.7 Dark Up 23.0 162.1 Low 10:17:26 - 10:47:26 6650
Lakeview 10:32:24 -20.0 Dark Up 23.5 162.2 Low 10:17:24 - 10:47:24 6627
Klamath Falls 10:32:36 -20.6 Dark Up 23.1 160.9 Low 10:17:36 - 10:47:36 6604
Cedarville 10:32:23 -20.4 Dark Up 24.1 162.3 Low 10:17:23 - 10:47:23 6596
Fall River/Burney 10:32:35 -21.4 Dark Up 24.3 161.1 Low 10:17:35 - 10:47:35 6549
Susanville 10:32:30 -21.5 Dark Up 25.1 161.7 Low 10:17:30 - 10:47:30 6528
Gimple 10:32:33 -21.8 Dark Up 25.3 161.5 Low 10:17:33 - 10:47:33 6509
Greenville 10:32:32 -21.9 Dark Up 25.3 161.4 Low 10:17:32 - 10:47:32 6508
Portola 10:32:29 -21.9 Dark Up 25.7 161.8 Low 10:17:29 - 10:47:29 6499
Quincy 10:32:33 -22.0 Dark Up 25.5 161.4 Low 10:17:33 - 10:47:33 6497
Reno 10:32:25 -21.8 Dark Up 26.1 162.4 Low 10:17:25 - 10:47:25 6496
Yerington 10:32:20 -21.9 Dark Up 26.8 162.9 Low 10:17:20 - 10:47:20 6476
Carson City 10:32:25 -22.0 Dark Up 26.5 162.4 Low 10:17:25 - 10:47:25 6476
Gardnerville 10:32:25 -22.2 Dark Up 26.7 162.4 Low 10:17:25 - 10:47:25 6463
Hawthorne 10:32:16 -22.0 Dark Up 27.4 163.4 Low 10:17:16 - 10:47:16 6459
Tonopah 10:32:05 -21.6 Dark Up 28.1 164.7 Low 10:17:05 - 10:47:05 6457
Lee Vining 10:32:22 -22.6 Dark Up 27.8 162.8 Low 10:17:22 - 10:47:22 6419
Beatty 10:32:01 -22.2 Dark Up 29.3 165.0 Low 10:17:01 - 10:47:01 6397
Bishop 10:32:15 -22.7 Dark Up 28.5 163.4 Low 10:17:15 - 10:47:15 6396
Indian Springs 10:31:53 -21.8 Dark Up 29.8 166.0 Low 10:16:53 - 10:46:53 6396
Henderson 10:31:46 -21.8 Dark Up 30.5 166.7 Up 10:16:46 - 10:46:46 6375
Patrick 10:31:37 -21.6 Dark Up 31.3 167.7 Up 10:16:37 - 10:46:37 6355
DCO 10:31:31 -21.4 Dark Up 31.7 168.4 Up 10:16:31 - 10:46:31 6348
Searchlight/Boulder City 10:31:47 -22.2 Dark Up 31.1 166.7 Up 10:16:47 - 10:46:47 6341
Kingman/Dolan Springs 10:31:40 -21.9 Dark Up 31.5 167.5 Up 10:16:40 - 10:46:40 6338
Laughlin/Bullhead City 10:31:44 -22.2 Dark Up 31.4 167.0 Up 10:16:44 - 10:46:44 6328
Mohave Valley 10:31:43 -22.4 Dark Up 31.7 166.9 Up 10:16:43 - 10:46:43 6311
Lake Havasu City 10:31:42 -22.5 Dark Up 32.1 167.1 Up 10:16:42 - 10:46:42 6291
George/Scottsdale 10:31:21 -21.6 Dark Up 33.3 169.6 Up 10:16:21 - 10:46:21 6281
Parker 10:31:42 -22.8 Dark Up 32.5 167.1 Up 10:16:42 - 10:46:42 6269
Blythe 10:31:44 -23.3 Dark Up 32.9 166.7 Up 10:16:44 - 10:46:44 6231
CPSLO 10:32:38 -25.4 Dark Up 29.9 160.9 Low 10:17:38 - 10:47:38 6229
Idyllwild 10:32:05 -24.4 Dark Up 32.4 164.6 Up 10:17:05 - 10:47:05 6203
Wildwood 10:32:21 -25.2 Dark Up 31.6 162.7 Up 10:17:21 - 10:47:21 6192
Calipatria 10:31:54 -24.2 Dark Up 33.2 165.7 Up 10:16:54 - 10:46:54 6183
Yuma 10:31:46 -24.0 Dark Up 33.8 166.6 Up 10:16:46 - 10:46:46 6171

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, (2020/05/11 10:29UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 34.46  34
Nunki          18:55:15.9 -26:17:49  2.0  4.14   3
PPM 269213     19:01:37.8 -22:41:43  6.2  0.52   1
PPM 269147     18:58:24.8 -22:31:45  6.6  0.46   2
PPM 269209     19:01:17.6 -22:07:03  9.2  0.33   2
10GX34         19:00:09.2 -22:18:28 17.2         2
Positions are for J2000

Event circumstances last updated at 2019/10/15 22:19:56 UT

Marc W. Buie, Southwest Research Institute

RECON