RECON: TNO occultation with 444745

Event between (444745) 07JF43 and star UC4-393-066121 with event index number of 199110

Geocentric closest approach at 2019/06/15 05:13:31 UTC

J2000 position of star is 16:23:01.8 -11:34:48
Equinox of date position of star is 16:24:01.4 -11:37:15
Stellar brightness R=12.9, use SENSEUP=32
Star is 10 degrees from the moon. Moon is 95% illuminated.
TNO apparent brightness V=21.0

[RECON map]
TNO is 37.2 AU from the Sun and 36.2 AU from the Earth.
The TNO is moving 23.1 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 84 seconds.
The 1-sigma cross-track error in the shadow position is 1316 km.
The sky-plane scale is 26285.0 km/arcsec.

The TNO has an absolute magnitude Hv=5.3
Diameter=524.8 km assuming a 5% albedo -- 22.7 sec chord
Diameter=214.3 km assuming a 30% albedo -- 9.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 444745, (2019/06/15 05:14UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.2 -26:28:25  0.9 14.93  15
13Zet Oph      16:38:13.9 -10:36:18  2.6  3.61  13
15Psi Sco      16:13:04.0 -10:06:48  4.9  3.10   9
PPM 231649     16:25:16.8 -11:56:30  8.0  0.43  10
PPM 231635     16:24:31.4 -11:38:21  9.7  0.10  10
444745         16:24:06.4 -11:37:27 12.9        10
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 14.9 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)
Oroville 05:15:15 -9.2 CT Up 26.1 154.6 Low 05:07:44 - 05:22:46 12322
Tonasket 05:15:16 -9.3 CT Up 26.3 154.5 Low 05:07:45 - 05:22:47 12308
Okanogan 05:15:16 -9.6 CT Up 26.6 154.3 Low 05:07:45 - 05:22:47 12285
Brewster 05:15:17 -9.7 CT Up 26.8 154.0 Low 05:07:46 - 05:22:48 12265
Manson/Chelan 05:15:19 -9.7 CT Up 26.9 153.6 Low 05:07:48 - 05:22:50 12247
Entiat 05:15:19 -9.8 CT Up 27.0 153.5 Low 05:07:48 - 05:22:50 12232
Wenatchee 05:15:20 -10.0 CT Up 27.2 153.3 Low 05:07:49 - 05:22:51 12214
Ellensburg 05:15:21 -10.2 CT Up 27.5 153.0 Low 05:07:50 - 05:22:52 12185
Pasco 05:15:17 -11.4 CT Up 28.6 154.3 Low 05:07:46 - 05:22:48 12160
Yakima 05:15:22 -10.6 CT Up 27.9 152.9 Low 05:07:51 - 05:22:53 12158
PNWRO 05:15:17 -11.7 CT Up 28.9 154.5 Low 05:07:46 - 05:22:48 12148
Toppenish/White Swan 05:15:21 -10.8 CT Up 28.1 153.0 Low 05:07:50 - 05:22:52 12147
George/Umatilla 05:15:18 -11.6 CT Up 28.9 154.0 Low 05:07:47 - 05:22:49 12135
Goldendale 05:15:23 -11.0 CT Up 28.5 152.4 Low 05:07:52 - 05:22:54 12104
The Dalles 05:15:23 -11.1 CT Up 28.6 152.0 Low 05:07:52 - 05:22:54 12084
Maupin 05:15:24 -11.4 CT Up 29.0 152.0 Low 05:07:53 - 05:22:55 12058
Madras/Culver 05:15:25 -11.8 CT Up 29.5 151.8 Low 05:07:54 - 05:22:56 12020
Redmond 05:15:25 -12.1 AT Up 29.8 151.7 Low 05:07:54 - 05:22:56 11995
Sisters 05:15:27 -11.9 CT Up 29.6 151.3 Low 05:07:56 - 05:22:58 11990
Bend 05:15:26 -12.2 AT Up 29.9 151.5 Low 05:07:55 - 05:22:57 11978
Oregon Observatory 05:15:26 -12.3 AT Up 30.0 151.3 Up 05:07:55 - 05:22:57 11964
Niwot 05:14:35 -21.9 Dark Up 37.6 168.8 Up 05:07:04 - 05:22:06 11963
La Pine/Gilchrist 05:15:26 -12.4 AT Up 30.2 151.2 Up 05:07:55 - 05:22:57 11949
North Lake 05:15:26 -13.0 AT Up 30.8 151.7 Up 05:07:55 - 05:22:57 11930
Paisley 05:15:24 -13.6 AT Up 31.4 151.9 Up 05:07:53 - 05:22:55 11897
Chiloquin 05:15:29 -13.1 AT Up 31.0 150.5 Up 05:07:58 - 05:23:00 11866
Lakeview 05:15:25 -14.1 AT Up 31.9 152.0 Up 05:07:54 - 05:22:56 11865
Klamath Falls 05:15:29 -13.4 AT Up 31.3 150.5 Up 05:07:58 - 05:23:00 11843
Tulelake 05:15:28 -13.7 AT Up 31.7 150.7 Up 05:07:57 - 05:22:59 11829
Cedarville 05:15:24 -14.7 AT Up 32.5 152.0 Up 05:07:53 - 05:22:55 11822
Fall River/Burney 05:15:29 -14.5 AT Up 32.5 150.5 Up 05:07:58 - 05:23:00 11765
Susanville 05:15:27 -15.3 AT Up 33.3 151.1 Up 05:07:56 - 05:22:58 11733
Gimple 05:15:29 -15.4 AT Up 33.5 150.8 Up 05:07:58 - 05:23:00 11708
Greenville 05:15:28 -15.4 AT Up 33.5 150.7 Up 05:07:57 - 05:22:59 11707
Quincy 05:15:28 -15.6 AT Up 33.6 150.6 Up 05:07:57 - 05:22:59 11692
Portola 05:15:27 -15.9 AT Up 33.9 151.1 Up 05:07:56 - 05:22:58 11691
Reno 05:15:24 -16.4 AT Up 34.4 151.7 Up 05:07:53 - 05:22:55 11684
Carson City 05:15:26 -16.7 AT Up 34.7 151.6 Up 05:07:55 - 05:22:57 11657
Yerington 05:15:23 -17.1 AT Up 35.1 152.3 Up 05:07:52 - 05:22:54 11654
Gardnerville 05:15:25 -16.9 AT Up 35.0 151.6 Up 05:07:54 - 05:22:56 11640
Hawthorne 05:15:22 -17.8 AT Up 35.7 152.7 Up 05:07:51 - 05:22:53 11629
Tonopah 05:15:17 -18.8 Dark Up 36.6 154.1 Up 05:07:46 - 05:22:48 11619
Lee Vining 05:15:24 -18.0 AT Up 36.0 152.0 Up 05:07:53 - 05:22:55 11577
Bishop 05:15:22 -18.8 Dark Up 36.8 152.6 Up 05:07:51 - 05:22:53 11545
Beatty 05:15:17 -19.9 Dark Up 37.8 154.3 Up 05:07:46 - 05:22:48 11539
Indian Springs 05:15:13 -20.7 Dark Up 38.5 155.4 Up 05:07:42 - 05:22:44 11533
Henderson 05:15:11 -21.5 Dark Up 39.2 156.0 Up 05:07:40 - 05:22:42 11504
Lone Pine 05:15:21 -19.6 Dark Up 37.6 152.7 Up 05:07:50 - 05:22:52 11492
Patrick 05:15:07 -22.5 Dark Up 40.1 157.2 Up 05:07:36 - 05:22:38 11475
DCO 05:15:05 -23.1 Dark Up 40.6 157.9 Up 05:07:34 - 05:22:36 11463
Searchlight/Boulder City 05:15:11 -22.0 Dark Up 39.7 155.9 Up 05:07:40 - 05:22:42 11460
Kingman/Dolan Springs 05:15:08 -22.6 Dark Up 40.3 156.9 Up 05:07:37 - 05:22:39 11454
Laughlin/Bullhead City 05:15:09 -22.4 Dark Up 40.1 156.2 Up 05:07:38 - 05:22:40 11443
Mohave Valley 05:15:10 -22.6 Dark Up 40.4 156.1 Up 05:07:39 - 05:22:41 11422
Lake Havasu City 05:15:09 -23.0 Dark Up 40.8 156.3 Up 05:07:38 - 05:22:40 11394
Parker 05:15:09 -23.3 Dark Up 41.2 156.2 Up 05:07:38 - 05:22:40 11367
CPSLO 05:15:31 -19.2 Dark Up 37.8 149.3 Up 05:08:00 - 05:23:02 11341
Blythe 05:15:10 -23.6 Dark Up 41.5 155.7 Up 05:07:39 - 05:22:41 11319
Idyllwild 05:15:19 -22.5 Dark Up 40.7 153.2 Up 05:07:48 - 05:22:50 11289
Wildwood 05:15:25 -21.2 Dark Up 39.6 151.1 Up 05:07:54 - 05:22:56 11283
Calipatria 05:15:14 -23.6 Dark Up 41.7 154.4 Up 05:07:43 - 05:22:45 11262
Yuma 05:15:11 -24.4 Dark Up 42.4 155.3 Up 05:07:40 - 05:22:42 11243

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 444745, (2019/06/15 05:14UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 14.93  15
13Zet Oph      16:37:09.6 -10:34:01  2.6  3.61  13
15Psi Sco      16:12:00.0 -10:03:51  4.9  3.10   9
PPM 231649     16:24:12.0 -11:53:53  8.0  0.43  10
PPM 231635     16:23:26.7 -11:35:43  9.7  0.10  10
444745         16:23:01.8 -11:34:48 12.9        10
Positions are for J2000

Event circumstances last updated at 2017/12/06 19:01:55 UT

Marc W. Buie, Southwest Research Institute

RECON