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 05:13:28 UTC

J2000 position of star is 16:23:01.8 -11:34:48
Equinox of date position of star is 16:23:59.9 -11:37:11
Stellar brightness R=12.9, use SENSEUP=32
Star is 10 degrees from the moon. Moon is 95% illuminated.
TNO apparent brightness V=21.1

[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 79 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=5.4
Diameter=501.2 km assuming a 5% albedo -- 21.7 sec chord
Diameter=204.6 km assuming a 30% albedo -- 8.8 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 444745, (2019/06/15 05:13UT)
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 05:15:09 -9.1 CT Up 26.1 154.5 Low 05:08:04 - 05:22:14 12608
Tonasket 05:15:10 -9.3 CT Up 26.3 154.5 Low 05:08:05 - 05:22:15 12594
Okanogan 05:15:12 -9.5 CT Up 26.6 154.3 Low 05:08:07 - 05:22:17 12572
Brewster 05:15:12 -9.7 CT Up 26.8 154.0 Low 05:08:07 - 05:22:17 12552
Manson/Chelan 05:15:14 -9.7 CT Up 26.9 153.6 Low 05:08:09 - 05:22:19 12533
Entiat 05:15:13 -9.8 CT Up 27.0 153.5 Low 05:08:08 - 05:22:18 12518
Wenatchee 05:15:14 -10.0 CT Up 27.2 153.3 Low 05:08:09 - 05:22:19 12501
Ellensburg 05:15:16 -10.2 CT Up 27.5 153.0 Low 05:08:11 - 05:22:21 12472
Pasco 05:15:11 -11.4 CT Up 28.6 154.3 Low 05:08:06 - 05:22:16 12447
Yakima 05:15:17 -10.5 CT Up 27.9 152.9 Low 05:08:12 - 05:22:22 12445
PNWRO 05:15:11 -11.7 CT Up 28.9 154.5 Low 05:08:06 - 05:22:16 12435
Toppenish/White Swan 05:15:16 -10.8 CT Up 28.1 153.0 Low 05:08:11 - 05:22:21 12434
George/Umatilla 05:15:13 -11.6 CT Up 28.9 154.0 Low 05:08:08 - 05:22:18 12421
Goldendale 05:15:17 -11.0 CT Up 28.5 152.4 Low 05:08:12 - 05:22:22 12391
The Dalles 05:15:18 -11.0 CT Up 28.6 152.0 Low 05:08:13 - 05:22:23 12370
Maupin 05:15:18 -11.4 CT Up 29.0 152.0 Low 05:08:13 - 05:22:23 12345
Madras/Culver 05:15:20 -11.8 CT Up 29.4 151.8 Low 05:08:15 - 05:22:25 12308
Redmond 05:15:20 -12.1 AT Up 29.7 151.6 Low 05:08:15 - 05:22:25 12283
Sisters 05:15:22 -11.9 CT Up 29.6 151.2 Low 05:08:17 - 05:22:27 12278
Bend 05:15:20 -12.2 AT Up 29.9 151.4 Low 05:08:15 - 05:22:25 12266
Oregon Observatory 05:15:22 -12.3 AT Up 30.0 151.3 Low 05:08:17 - 05:22:27 12252
Niwot 05:14:30 -21.9 Dark Up 37.6 168.7 Up 05:07:25 - 05:21:35 12252
La Pine/Gilchrist 05:15:22 -12.4 AT Up 30.2 151.1 Up 05:08:17 - 05:22:27 12237
North Lake 05:15:20 -13.0 AT Up 30.7 151.6 Up 05:08:15 - 05:22:25 12218
Paisley 05:15:19 -13.6 AT Up 31.4 151.9 Up 05:08:14 - 05:22:24 12185
Chiloquin 05:15:23 -13.1 AT Up 31.0 150.4 Up 05:08:18 - 05:22:28 12154
Lakeview 05:15:20 -14.1 AT Up 31.9 151.9 Up 05:08:15 - 05:22:25 12153
Klamath Falls 05:15:23 -13.4 AT Up 31.3 150.4 Up 05:08:18 - 05:22:28 12131
Tulelake 05:15:23 -13.7 AT Up 31.7 150.7 Up 05:08:18 - 05:22:28 12117
Cedarville 05:15:20 -14.7 AT Up 32.5 151.9 Up 05:08:15 - 05:22:25 12110
Fall River/Burney 05:15:23 -14.5 AT Up 32.5 150.5 Up 05:08:18 - 05:22:28 12053
Susanville 05:15:21 -15.3 AT Up 33.3 151.1 Up 05:08:16 - 05:22:26 12021
Gimple 05:15:23 -15.4 AT Up 33.5 150.8 Up 05:08:18 - 05:22:28 11996
Greenville 05:15:23 -15.4 AT Up 33.5 150.7 Up 05:08:18 - 05:22:28 11995
Quincy 05:15:23 -15.5 AT Up 33.6 150.6 Up 05:08:18 - 05:22:28 11980
Portola 05:15:21 -15.9 AT Up 33.9 151.1 Up 05:08:16 - 05:22:26 11980
Reno 05:15:20 -16.4 AT Up 34.4 151.7 Up 05:08:15 - 05:22:25 11972
Carson City 05:15:20 -16.7 AT Up 34.7 151.6 Up 05:08:15 - 05:22:25 11945
Yerington 05:15:18 -17.1 AT Up 35.1 152.2 Up 05:08:13 - 05:22:23 11942
Gardnerville 05:15:20 -16.9 AT Up 34.9 151.6 Up 05:08:15 - 05:22:25 11928
Hawthorne 05:15:16 -17.8 AT Up 35.7 152.7 Up 05:08:11 - 05:22:21 11917
Tonopah 05:15:12 -18.8 Dark Up 36.6 154.1 Up 05:08:07 - 05:22:17 11907
Lee Vining 05:15:19 -18.0 AT Up 36.0 151.9 Up 05:08:14 - 05:22:24 11866
Bishop 05:15:16 -18.8 Dark Up 36.8 152.5 Up 05:08:11 - 05:22:21 11833
Beatty 05:15:11 -19.9 Dark Up 37.8 154.2 Up 05:08:06 - 05:22:16 11827
Indian Springs 05:15:07 -20.7 Dark Up 38.5 155.4 Up 05:08:02 - 05:22:12 11821
Henderson 05:15:05 -21.5 Dark Up 39.2 156.0 Up 05:08:00 - 05:22:10 11791
Lone Pine 05:15:16 -19.5 Dark Up 37.6 152.7 Up 05:08:11 - 05:22:21 11780
Patrick 05:15:02 -22.5 Dark Up 40.1 157.1 Up 05:07:57 - 05:22:07 11763
DCO 05:14:59 -23.1 Dark Up 40.6 157.9 Up 05:07:54 - 05:22:04 11751
Searchlight/Boulder City 05:15:05 -22.0 Dark Up 39.7 155.9 Up 05:08:00 - 05:22:10 11748
Kingman/Dolan Springs 05:15:02 -22.6 Dark Up 40.3 156.8 Up 05:07:57 - 05:22:07 11742
Laughlin/Bullhead City 05:15:04 -22.4 Dark Up 40.1 156.2 Up 05:07:59 - 05:22:09 11730
Mohave Valley 05:15:04 -22.6 Dark Up 40.4 156.1 Up 05:07:59 - 05:22:09 11709
Lake Havasu City 05:15:03 -23.0 Dark Up 40.8 156.3 Up 05:07:58 - 05:22:08 11682
Parker 05:15:03 -23.3 Dark Up 41.2 156.2 Up 05:07:58 - 05:22:08 11654
CPSLO 05:15:25 -19.2 Dark Up 37.8 149.3 Up 05:08:20 - 05:22:30 11629
Blythe 05:15:05 -23.6 Dark Up 41.5 155.6 Up 05:08:00 - 05:22:10 11606
Idyllwild 05:15:12 -22.5 Dark Up 40.7 153.2 Up 05:08:07 - 05:22:17 11578
Wildwood 05:15:19 -21.2 Dark Up 39.6 151.1 Up 05:08:14 - 05:22:24 11571
Calipatria 05:15:08 -23.6 Dark Up 41.7 154.3 Up 05:08:03 - 05:22:13 11549
Yuma 05:15:05 -24.3 Dark Up 42.4 155.3 Up 05:08:00 - 05:22:10 11530

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 05:13UT)
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 2017/07/01 17:44:51 UT

Marc W. Buie, Southwest Research Institute

RECON