RECON: TNO occultation with 01HA59

Event between 01HA59 and star UC4-357-073577 with event index number of 189447

Geocentric closest approach at 2019/05/26 05:29:33 UTC

J2000 position of star is 15:42:28.9 -18:37:31
Equinox of date position of star is 15:43:30.7 -18:40:53
Stellar brightness R=12.0, use SENSEUP=16
Star is 92 degrees from the moon. Moon is 55% illuminated.
TNO apparent brightness V=23.1

[RECON map]
TNO is 45.8 AU from the Sun and 44.8 AU from the Earth.
The TNO is moving 24.9 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 470 seconds.
The 1-sigma cross-track error in the shadow position is 5743 km.
The sky-plane scale is 32500.1 km/arcsec.

The TNO has an absolute magnitude Hv=6.5
Diameter=299.2 km assuming a 5% albedo -- 12.0 sec chord
Diameter=122.2 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 01HA59, (2019/05/26 05:30UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.0 -26:28:24  0.9 13.34  80
8Bet1Sco       16:06:34.1 -19:51:25  2.6  5.55  87
43Kap Lib      15:43:04.1 -19:44:25  4.7  1.06  92
PPM 230627     15:43:45.0 -18:40:04  7.9  0.04  92
01HA59         15:43:35.8 -18:41:09 12.0        92
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 1.9 sigma about the mid-time.
The median site spacing is 10.2 km RECON observability=0.8 and success probability=0.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 05:31:40 -13.1 AT Down 17.8 151.5 Really Low 05:16:40 - 05:46:40 14508
Tonasket 05:31:40 -13.3 AT Down 18.0 151.5 Really Low 05:16:40 - 05:46:40 14495
Okanogan 05:31:41 -13.5 AT Down 18.2 151.3 Really Low 05:16:41 - 05:46:41 14473
Brewster 05:31:42 -13.6 AT Down 18.4 151.1 Really Low 05:16:42 - 05:46:42 14453
Manson/Chelan 05:31:43 -13.7 AT Down 18.5 150.7 Really Low 05:16:43 - 05:46:43 14432
Entiat 05:31:44 -13.8 AT Down 18.7 150.6 Really Low 05:16:44 - 05:46:44 14418
Wenatchee 05:31:44 -14.0 AT Down 18.8 150.5 Really Low 05:16:44 - 05:46:44 14401
Ellensburg 05:31:45 -14.3 AT Down 19.1 150.2 Really Low 05:16:45 - 05:46:45 14372
Pasco 05:31:42 -15.4 AT Down 20.3 151.4 Low 05:16:42 - 05:46:42 14367
Niwot 05:31:07 -25.6 Dark Down 29.7 164.1 Low 05:16:07 - 05:46:07 14363
PNWRO 05:31:42 -15.7 AT Down 20.5 151.6 Low 05:16:42 - 05:46:42 14359
Yakima 05:31:46 -14.6 AT Down 19.5 150.1 Really Low 05:16:46 - 05:46:46 14349
George/Umatilla 05:31:43 -15.6 AT Down 20.5 151.1 Low 05:16:43 - 05:46:43 14342
Toppenish/White Swan 05:31:45 -14.8 AT Down 19.7 150.2 Really Low 05:16:45 - 05:46:45 14341
Goldendale 05:31:47 -15.1 AT Down 20.1 149.7 Low 05:16:47 - 05:46:47 14297
The Dalles 05:31:48 -15.1 AT Down 20.1 149.3 Low 05:16:48 - 05:46:48 14274
Maupin 05:31:48 -15.5 AT Down 20.5 149.4 Low 05:16:48 - 05:46:48 14252
Madras/Culver 05:31:49 -16.0 AT Down 21.0 149.2 Low 05:16:49 - 05:46:49 14218
Redmond 05:31:50 -16.2 AT Down 21.3 149.1 Low 05:16:50 - 05:46:50 14195
Sisters 05:31:51 -16.0 AT Down 21.1 148.7 Low 05:16:51 - 05:46:51 14185
Bend 05:31:50 -16.3 AT Down 21.4 148.9 Low 05:16:50 - 05:46:50 14178
Oregon Observatory 05:31:51 -16.4 AT Down 21.5 148.8 Low 05:16:51 - 05:46:51 14163
La Pine/Gilchrist 05:31:51 -16.6 AT Down 21.7 148.7 Low 05:16:51 - 05:46:51 14149
North Lake 05:31:50 -17.2 AT Down 22.2 149.1 Low 05:16:50 - 05:46:50 14139
Paisley 05:31:50 -17.8 AT Down 22.9 149.4 Low 05:16:50 - 05:46:50 14114
Lakeview 05:31:50 -18.3 Dark Down 23.4 149.4 Low 05:16:50 - 05:46:50 14087
Chiloquin 05:31:53 -17.3 AT Down 22.5 148.1 Low 05:16:53 - 05:46:53 14068
Cedarville 05:31:50 -18.9 Dark Down 24.0 149.5 Low 05:16:50 - 05:46:50 14050
Klamath Falls 05:31:53 -17.6 AT Down 22.8 148.1 Low 05:16:53 - 05:46:53 14049
Tulelake 05:31:52 -18.0 AT Down 23.1 148.3 Low 05:16:52 - 05:46:52 14040
Fall River/Burney 05:31:54 -18.7 Dark Down 23.9 148.2 Low 05:16:54 - 05:46:54 13983
Susanville 05:31:52 -19.6 Dark Down 24.8 148.8 Low 05:16:52 - 05:46:52 13963
Gimple 05:31:53 -19.7 Dark Down 24.9 148.5 Low 05:16:53 - 05:46:53 13938
Greenville 05:31:53 -19.6 Dark Down 24.9 148.4 Low 05:16:53 - 05:46:53 13936
Reno 05:31:51 -20.6 Dark Down 25.8 149.3 Low 05:16:51 - 05:46:51 13929
Portola 05:31:52 -20.1 Dark Down 25.4 148.8 Low 05:16:52 - 05:46:52 13928
Quincy 05:31:53 -19.8 Dark Down 25.1 148.4 Low 05:16:53 - 05:46:53 13922
Yerington 05:31:49 -21.4 Dark Down 26.6 149.8 Low 05:16:49 - 05:46:49 13911
Carson City 05:31:51 -20.9 Dark Down 26.2 149.3 Low 05:16:51 - 05:46:51 13905
Tonopah 05:31:43 -23.0 Dark Down 28.1 151.5 Low 05:16:43 - 05:46:43 13905
Hawthorne 05:31:48 -22.0 Dark Down 27.2 150.2 Low 05:16:48 - 05:46:48 13895
Gardnerville 05:31:50 -21.2 Dark Down 26.4 149.2 Low 05:16:50 - 05:46:50 13890
Indian Springs 05:31:40 -24.9 Dark Down 30.0 152.6 Up 05:16:40 - 05:46:40 13847
Lee Vining 05:31:49 -22.2 Dark Down 27.5 149.6 Low 05:16:49 - 05:46:49 13842
Beatty 05:31:43 -24.2 Dark Down 29.3 151.6 Low 05:16:43 - 05:46:43 13838
Henderson 05:31:39 -25.7 Dark Down 30.7 153.1 Up 05:16:39 - 05:46:39 13830
Bishop 05:31:48 -23.1 Dark Down 28.3 150.1 Low 05:16:48 - 05:46:48 13822
Patrick 05:31:35 -26.7 Dark Down 31.7 154.1 Up 05:16:35 - 05:46:35 13819
DCO 05:31:33 -27.2 Dark Down 32.2 154.8 Up 05:16:33 - 05:46:33 13818
Kingman/Dolan Springs 05:31:35 -26.8 Dark Down 31.8 153.9 Up 05:16:35 - 05:46:35 13797
Searchlight/Boulder City 05:31:39 -26.2 Dark Down 31.3 153.1 Up 05:16:39 - 05:46:39 13791
Laughlin/Bullhead City 05:31:36 -26.6 Dark Down 31.7 153.3 Up 05:16:36 - 05:46:36 13781
Lone Pine 05:31:47 -23.8 Dark Down 29.1 150.3 Low 05:16:47 - 05:46:47 13778
Mohave Valley 05:31:38 -26.8 Dark Down 31.9 153.3 Up 05:16:38 - 05:46:38 13761
Lake Havasu City 05:31:37 -27.3 Dark Down 32.4 153.4 Up 05:16:37 - 05:46:37 13740
Parker 05:31:37 -27.6 Dark Down 32.7 153.3 Up 05:16:37 - 05:46:37 13715
Blythe 05:31:38 -27.9 Dark Down 33.0 152.9 Up 05:16:38 - 05:46:38 13668
Idyllwild 05:31:45 -26.8 Dark Down 32.1 150.8 Up 05:16:45 - 05:46:45 13612
CPSLO 05:31:55 -23.6 Dark Down 29.1 147.4 Low 05:16:55 - 05:46:55 13605
Calipatria 05:31:41 -27.9 Dark Down 33.1 151.8 Up 05:16:41 - 05:46:41 13603
Yuma 05:31:39 -28.6 Dark Down 33.8 152.5 Up 05:16:39 - 05:46:39 13598
Wildwood 05:31:50 -25.6 Dark Down 31.0 149.0 Up 05:16:50 - 05:46:50 13580

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 01HA59, (2019/05/26 05:30UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 13.34  80
8Bet1Sco       16:05:26.2 -19:48:20  2.6  5.55  87
43Kap Lib      15:41:56.8 -19:40:46  4.7  1.06  92
PPM 230627     15:42:38.1 -18:36:26  7.9  0.04  92
01HA59         15:42:28.9 -18:37:31 12.0        92
Positions are for J2000

Event circumstances last updated at 2017/12/06 18:58:49 UT

Marc W. Buie, Southwest Research Institute

RECON