RECON: TNO occultation with 10370

Event between (10370) Hylonome and star UC4-357-168382 with event index number of 196528

Geocentric closest approach at 2019/06/11 05:58:04 UTC

J2000 position of star is 18:54:40.3 -18:38:31
Equinox of date position of star is 18:55:41.8 -18:37:07
Stellar brightness R=16.0, use SENSEUP=128
Star is 99 degrees from the moon. Moon is 61% illuminated.
TNO apparent brightness V=22.5

[RECON map]
TNO is 24.3 AU from the Sun and 23.4 AU from the Earth.
The TNO is moving 21.0 km/sec on the sky relative to the star, or, 4.4 arcsec/hr.
The 1-sigma error in the time of the event is 1033 seconds.
The 1-sigma cross-track error in the shadow position is 4172 km.
The sky-plane scale is 16965.3 km/arcsec.

The TNO has an absolute magnitude Hv=8.6
Diameter=114.8 km assuming a 5% albedo -- 5.5 sec chord
Diameter=46.9 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 10370, (2019/06/11 05:58UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.2 -26:28:25  0.9 34.31  67
Nunki          18:56:28.2 -26:16:15  2.0  7.66  99
PPM 235314     19:00:32.4 -19:15:05  6.5  1.29 100
PPM 235159     18:54:04.2 -18:14:03  7.6  0.56  99
PPM 235249     18:56:58.1 -18:30:26  8.6  0.30 100
10370          18:55:48.6 -18:36:58 16.0       100
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 0.9 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.0 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)
Oroville 06:00:29 -13.4 AT Up 7.3 129.7 Really Low 05:45:29 - 06:15:29 9832
Tonasket 06:00:29 -13.6 AT Up 7.5 129.6 Really Low 05:45:29 - 06:15:29 9821
Okanogan 06:00:31 -13.9 AT Up 7.6 129.5 Really Low 05:45:31 - 06:15:31 9802
Brewster 06:00:32 -14.1 AT Up 7.7 129.3 Really Low 05:45:32 - 06:15:32 9785
Manson/Chelan 06:00:34 -14.1 AT Up 7.6 129.0 Really Low 05:45:34 - 06:15:34 9768
Entiat 06:00:34 -14.3 AT Up 7.7 128.9 Really Low 05:45:34 - 06:15:34 9755
Wenatchee 06:00:35 -14.5 AT Up 7.8 128.8 Really Low 05:45:35 - 06:15:35 9741
Ellensburg 06:00:38 -14.8 AT Up 8.0 128.6 Really Low 05:45:38 - 06:15:38 9716
Pasco 06:00:37 -15.9 AT Up 9.2 129.6 Really Low 05:45:37 - 06:15:37 9700
Yakima 06:00:39 -15.2 AT Up 8.2 128.5 Really Low 05:45:39 - 06:15:39 9694
PNWRO 06:00:37 -16.2 AT Up 9.5 129.8 Really Low 05:45:37 - 06:15:37 9691
Toppenish/White Swan 06:00:39 -15.4 AT Up 8.5 128.7 Really Low 05:45:39 - 06:15:39 9685
George/Umatilla 06:00:38 -16.1 AT Up 9.3 129.4 Really Low 05:45:38 - 06:15:38 9678
Goldendale 06:00:41 -15.7 AT Up 8.6 128.3 Really Low 05:45:41 - 06:15:41 9648
The Dalles 06:00:43 -15.8 AT Up 8.5 128.0 Really Low 05:45:43 - 06:15:43 9629
Maupin 06:00:45 -16.2 AT Up 8.8 128.0 Really Low 05:45:45 - 06:15:45 9608
Madras/Culver 06:00:46 -16.7 AT Up 9.2 127.9 Really Low 05:45:46 - 06:15:46 9577
Niwot 06:00:17 -25.3 Dark Up 20.7 139.9 Low 05:45:17 - 06:15:17 9566
Redmond 06:00:47 -17.0 AT Up 9.4 127.8 Really Low 05:45:47 - 06:15:47 9556
Sisters 06:00:48 -16.8 AT Up 9.1 127.5 Really Low 05:45:48 - 06:15:48 9550
Bend 06:00:48 -17.1 AT Up 9.4 127.7 Really Low 05:45:48 - 06:15:48 9541
Oregon Observatory 06:00:49 -17.2 AT Up 9.4 127.6 Really Low 05:45:49 - 06:15:49 9529
La Pine/Gilchrist 06:00:50 -17.4 AT Up 9.5 127.5 Really Low 05:45:50 - 06:15:50 9516
North Lake 06:00:50 -18.0 AT Up 10.2 127.9 Really Low 05:45:50 - 06:15:50 9502
Paisley 06:00:51 -18.6 Dark Up 10.7 128.1 Really Low 05:45:51 - 06:15:51 9476
Lakeview 06:00:52 -19.1 Dark Up 11.1 128.2 Really Low 05:45:52 - 06:15:52 9449
Chiloquin 06:00:54 -18.2 Dark Up 10.0 127.1 Really Low 05:45:54 - 06:15:54 9444
Klamath Falls 06:00:56 -18.5 Dark Up 10.3 127.1 Really Low 05:45:56 - 06:15:56 9425
Tulelake 06:00:56 -18.9 Dark Up 10.6 127.3 Really Low 05:45:56 - 06:15:56 9414
Cedarville 06:00:54 -19.7 Dark Up 11.6 128.2 Really Low 05:45:54 - 06:15:54 9412
Fall River/Burney 06:00:58 -19.7 Dark Up 11.2 127.2 Really Low 05:45:58 - 06:15:58 9359
Susanville 06:00:58 -20.5 Dark Up 12.1 127.7 Really Low 05:45:58 - 06:15:58 9334
Gimple 06:00:59 -20.7 Dark Up 12.1 127.5 Really Low 05:45:59 - 06:15:59 9312
Greenville 06:01:00 -20.7 Dark Up 12.0 127.4 Really Low 05:46:00 - 06:16:00 9311
Portola 06:01:00 -21.1 Dark Up 12.5 127.7 Really Low 05:46:00 - 06:16:00 9300
Quincy 06:01:00 -20.8 Dark Up 12.2 127.4 Really Low 05:46:00 - 06:16:00 9298
Reno 06:00:59 -21.6 Dark Up 13.1 128.1 Really Low 05:45:59 - 06:15:59 9295
Carson City 06:01:00 -21.9 Dark Up 13.3 128.1 Really Low 05:46:00 - 06:16:00 9272
Yerington 06:00:59 -22.3 Dark Up 13.8 128.5 Really Low 05:45:59 - 06:15:59 9271
Gardnerville 06:01:00 -22.2 Dark Up 13.5 128.1 Really Low 05:46:00 - 06:16:00 9257
Hawthorne 06:00:59 -22.9 Dark Up 14.4 128.8 Really Low 05:45:59 - 06:15:59 9251
Tonopah 06:00:56 -23.9 Dark Up 15.6 129.8 Really Low 05:45:56 - 06:15:56 9247
Lee Vining 06:01:02 -23.3 Dark Up 14.5 128.4 Really Low 05:46:02 - 06:16:02 9205
Bishop 06:01:01 -24.1 Dark Up 15.3 128.8 Really Low 05:46:01 - 06:16:01 9179
Beatty 06:00:59 -25.1 Dark Up 16.6 129.9 Really Low 05:45:59 - 06:15:59 9178
Indian Springs 06:00:56 -25.7 Dark Up 17.5 130.6 Really Low 05:45:56 - 06:15:56 9176
Henderson 06:00:56 -26.5 Dark Up 18.3 131.0 Really Low 05:45:56 - 06:15:56 9152
Lone Pine 06:01:03 -24.9 Dark Up 16.0 128.9 Really Low 05:46:03 - 06:16:03 9134
Patrick 06:00:54 -27.4 Dark Up 19.4 131.7 Really Low 05:45:54 - 06:15:54 9129
DCO 06:00:53 -27.9 Dark Up 20.0 132.2 Really Low 05:45:53 - 06:15:53 9120
Searchlight/Boulder City 06:00:57 -27.0 Dark Up 18.7 130.9 Really Low 05:45:57 - 06:15:57 9114
Kingman/Dolan Springs 06:00:55 -27.6 Dark Up 19.4 131.5 Really Low 05:45:55 - 06:15:55 9110
Laughlin/Bullhead City 06:00:56 -27.4 Dark Up 19.1 131.1 Really Low 05:45:56 - 06:15:56 9099
Mohave Valley 06:00:58 -27.7 Dark Up 19.3 131.1 Really Low 05:45:58 - 06:15:58 9080
Lake Havasu City 06:00:57 -28.1 Dark Up 19.7 131.1 Really Low 05:45:57 - 06:15:57 9057
Parker 06:00:58 -28.4 Dark Up 19.9 131.1 Really Low 05:45:58 - 06:15:58 9032
CPSLO 06:01:13 -25.0 Dark Up 15.2 126.7 Really Low 05:46:13 - 06:16:13 8992
Blythe 06:01:01 -28.8 Dark Up 20.1 130.7 Low 05:46:01 - 06:16:01 8989
Idyllwild 06:01:07 -27.9 Dark Up 18.7 129.2 Really Low 05:46:07 - 06:16:07 8959
Wildwood 06:01:11 -26.9 Dark Up 17.3 127.9 Really Low 05:46:11 - 06:16:11 8948
Calipatria 06:01:04 -28.9 Dark Up 19.8 129.9 Really Low 05:46:04 - 06:16:04 8937
Yuma 06:01:03 -29.6 Dark Up 20.7 130.4 Low 05:46:03 - 06:16:03 8922

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 10370, (2019/06/11 05:58UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 34.31  67
Nunki          18:55:15.9 -26:17:49  2.0  7.66  99
PPM 235314     18:59:23.9 -19:16:46  6.5  1.29 100
PPM 235159     18:52:56.0 -18:15:33  7.6  0.56  99
PPM 235249     18:55:49.9 -18:32:01  8.6  0.30 100
10370          18:54:40.3 -18:38:31 16.0        99
Positions are for J2000

Event circumstances last updated at 2017/07/01 17:43:44 UT

Marc W. Buie, Southwest Research Institute

RECON