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 05:58:05 UTC

J2000 position of star is 18:54:40.3 -18:38:31
Equinox of date position of star is 18:55:43.3 -18:37:05
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, 4.5 arcsec/hr.
The 1-sigma error in the time of the event is 979 seconds.
The 1-sigma cross-track error in the shadow position is 3963 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 06:00:30 -13.4 AT Up 7.3 129.7 Really Low 05:45:30 - 06:15:30 9827
Tonasket 06:00:30 -13.6 AT Up 7.5 129.6 Really Low 05:45:30 - 06:15:30 9816
Okanogan 06:00:32 -13.9 AT Up 7.6 129.5 Really Low 05:45:32 - 06:15:32 9797
Brewster 06:00:33 -14.1 AT Up 7.7 129.3 Really Low 05:45:33 - 06:15:33 9780
Manson/Chelan 06:00:34 -14.1 AT Up 7.6 129.0 Really Low 05:45:34 - 06:15:34 9763
Entiat 06:00:35 -14.3 AT Up 7.7 128.9 Really Low 05:45:35 - 06:15:35 9751
Wenatchee 06:00:37 -14.5 AT Up 7.9 128.8 Really Low 05:45:37 - 06:15:37 9736
Ellensburg 06:00:38 -14.8 AT Up 8.0 128.6 Really Low 05:45:38 - 06:15:38 9710
Pasco 06:00:37 -15.9 AT Up 9.2 129.6 Really Low 05:45:37 - 06:15:37 9695
Yakima 06:00:40 -15.2 AT Up 8.2 128.5 Really Low 05:45:40 - 06:15:40 9689
PNWRO 06:00:38 -16.2 AT Up 9.5 129.8 Really Low 05:45:38 - 06:15:38 9686
Toppenish/White Swan 06:00:40 -15.4 AT Up 8.5 128.7 Really Low 05:45:40 - 06:15:40 9680
George/Umatilla 06:00:39 -16.1 AT Up 9.3 129.4 Really Low 05:45:39 - 06:15:39 9673
Goldendale 06:00:43 -15.7 AT Up 8.6 128.3 Really Low 05:45:43 - 06:15:43 9643
The Dalles 06:00:45 -15.8 AT Up 8.5 128.0 Really Low 05:45:45 - 06:15:45 9624
Maupin 06:00:45 -16.2 AT Up 8.9 128.0 Really Low 05:45:45 - 06:15:45 9603
Madras/Culver 06:00:47 -16.7 AT Up 9.2 127.9 Really Low 05:45:47 - 06:15:47 9571
Niwot 06:00:17 -25.3 Dark Up 20.7 139.9 Low 05:45:17 - 06:15:17 9560
Redmond 06:00:48 -17.0 AT Up 9.4 127.8 Really Low 05:45:48 - 06:15:48 9550
Sisters 06:00:49 -16.8 AT Up 9.1 127.5 Really Low 05:45:49 - 06:15:49 9544
Bend 06:00:49 -17.1 AT Up 9.4 127.7 Really Low 05:45:49 - 06:15:49 9535
Oregon Observatory 06:00:50 -17.2 AT Up 9.4 127.6 Really Low 05:45:50 - 06:15:50 9523
La Pine/Gilchrist 06:00:50 -17.4 AT Up 9.5 127.5 Really Low 05:45:50 - 06:15:50 9510
North Lake 06:00:50 -18.0 AT Up 10.2 127.9 Really Low 05:45:50 - 06:15:50 9495
Paisley 06:00:52 -18.6 Dark Up 10.7 128.1 Really Low 05:45:52 - 06:15:52 9469
Lakeview 06:00:53 -19.1 Dark Up 11.1 128.2 Really Low 05:45:53 - 06:15:53 9443
Chiloquin 06:00:55 -18.2 Dark Up 10.0 127.1 Really Low 05:45:55 - 06:15:55 9437
Klamath Falls 06:00:56 -18.5 Dark Up 10.3 127.1 Really Low 05:45:56 - 06:15:56 9418
Tulelake 06:00:56 -18.9 Dark Up 10.6 127.3 Really Low 05:45:56 - 06:15:56 9408
Cedarville 06:00:55 -19.7 Dark Up 11.6 128.2 Really Low 05:45:55 - 06:15:55 9406
Fall River/Burney 06:00:58 -19.7 Dark Up 11.2 127.2 Really Low 05:45:58 - 06:15:58 9353
Susanville 06:00:59 -20.5 Dark Up 12.1 127.7 Really Low 05:45:59 - 06:15:59 9328
Gimple 06:01:00 -20.7 Dark Up 12.1 127.5 Really Low 05:46:00 - 06:16:00 9306
Greenville 06:01:00 -20.7 Dark Up 12.0 127.4 Really Low 05:46:00 - 06:16:00 9305
Portola 06:01:00 -21.1 Dark Up 12.5 127.7 Really Low 05:46:00 - 06:16:00 9293
Quincy 06:01:02 -20.8 Dark Up 12.2 127.4 Really Low 05:46:02 - 06:16:02 9292
Reno 06:01:00 -21.6 Dark Up 13.1 128.1 Really Low 05:46:00 - 06:16:00 9288
Carson City 06:01:00 -21.9 Dark Up 13.3 128.1 Really Low 05:46:00 - 06:16:00 9266
Yerington 06:00:59 -22.3 Dark Up 13.8 128.5 Really Low 05:45:59 - 06:15:59 9265
Gardnerville 06:01:01 -22.2 Dark Up 13.5 128.1 Really Low 05:46:01 - 06:16:01 9251
Hawthorne 06:00:59 -22.9 Dark Up 14.5 128.8 Really Low 05:45:59 - 06:15:59 9245
Tonopah 06:00:57 -23.9 Dark Up 15.6 129.8 Really Low 05:45:57 - 06:15:57 9241
Lee Vining 06:01:03 -23.3 Dark Up 14.5 128.4 Really Low 05:46:03 - 06:16:03 9198
Bishop 06:01:02 -24.1 Dark Up 15.3 128.8 Really Low 05:46:02 - 06:16:02 9172
Beatty 06:00:59 -25.1 Dark Up 16.6 129.9 Really Low 05:45:59 - 06:15:59 9172
Indian Springs 06:00:57 -25.7 Dark Up 17.5 130.6 Really Low 05:45:57 - 06:15:57 9170
Henderson 06:00:57 -26.5 Dark Up 18.3 131.0 Really Low 05:45:57 - 06:15:57 9146
Lone Pine 06:01:03 -24.9 Dark Up 16.0 128.9 Really Low 05:46:03 - 06:16:03 9127
Patrick 06:00:55 -27.4 Dark Up 19.4 131.7 Really Low 05:45:55 - 06:15:55 9123
DCO 06:00:54 -27.9 Dark Up 20.0 132.2 Really Low 05:45:54 - 06:15:54 9115
Searchlight/Boulder City 06:00:57 -27.0 Dark Up 18.7 130.9 Really Low 05:45:57 - 06:15:57 9108
Kingman/Dolan Springs 06:00:56 -27.6 Dark Up 19.4 131.5 Really Low 05:45:56 - 06:15:56 9104
Laughlin/Bullhead City 06:00:58 -27.4 Dark Up 19.1 131.1 Really Low 05:45:58 - 06:15:58 9094
Mohave Valley 06:00:59 -27.7 Dark Up 19.3 131.1 Really Low 05:45:59 - 06:15:59 9075
Lake Havasu City 06:00:59 -28.1 Dark Up 19.7 131.1 Really Low 05:45:59 - 06:15:59 9051
Parker 06:00:59 -28.4 Dark Up 19.9 131.1 Really Low 05:45:59 - 06:15:59 9027
CPSLO 06:01:13 -25.0 Dark Up 15.2 126.7 Really Low 05:46:13 - 06:16:13 8986
Blythe 06:01:01 -28.8 Dark Up 20.1 130.7 Low 05:46:01 - 06:16:01 8984
Idyllwild 06:01:07 -27.9 Dark Up 18.7 129.2 Really Low 05:46:07 - 06:16:07 8953
Wildwood 06:01:12 -26.9 Dark Up 17.3 127.9 Really Low 05:46:12 - 06:16:12 8942
Calipatria 06:01:06 -28.9 Dark Up 19.8 129.9 Really Low 05:46:06 - 06:16:06 8931
Yuma 06:01:03 -29.6 Dark Up 20.7 130.4 Low 05:46:03 - 06:16:03 8917

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 2017/12/06 19:01:14 UT

Marc W. Buie, Southwest Research Institute

RECON