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 15:43:28.9 -18:40:47
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 05:31:39 -13.1 AT Down 17.8 151.5 Really Low 05:16:39 - 05:46:39 14515
Tonasket 05:31:41 -13.3 AT Down 18.0 151.5 Really Low 05:16:41 - 05:46:41 14503
Okanogan 05:31:41 -13.5 AT Down 18.2 151.3 Really Low 05:16:41 - 05:46:41 14481
Brewster 05:31:41 -13.6 AT Down 18.4 151.1 Really Low 05:16:41 - 05:46:41 14461
Manson/Chelan 05:31:42 -13.7 AT Down 18.5 150.7 Really Low 05:16:42 - 05:46:42 14440
Entiat 05:31:43 -13.8 AT Down 18.7 150.6 Really Low 05:16:43 - 05:46:43 14426
Wenatchee 05:31:44 -14.0 AT Down 18.8 150.5 Really Low 05:16:44 - 05:46:44 14409
Ellensburg 05:31:45 -14.3 AT Down 19.1 150.2 Really Low 05:16:45 - 05:46:45 14380
Pasco 05:31:42 -15.4 AT Down 20.3 151.4 Low 05:16:42 - 05:46:42 14375
Niwot 05:31:06 -25.6 Dark Down 29.7 164.1 Low 05:16:06 - 05:46:06 14372
PNWRO 05:31:41 -15.7 AT Down 20.5 151.5 Low 05:16:41 - 05:46:41 14367
Yakima 05:31:46 -14.6 AT Down 19.5 150.1 Really Low 05:16:46 - 05:46:46 14356
George/Umatilla 05:31:42 -15.6 AT Down 20.5 151.1 Low 05:16:42 - 05:46:42 14350
Toppenish/White Swan 05:31:45 -14.8 AT Down 19.7 150.2 Really Low 05:16:45 - 05:46:45 14348
Goldendale 05:31:47 -15.1 AT Down 20.1 149.7 Low 05:16:47 - 05:46:47 14305
The Dalles 05:31:48 -15.1 AT Down 20.1 149.3 Low 05:16:48 - 05:46:48 14282
Maupin 05:31:47 -15.5 AT Down 20.5 149.4 Low 05:16:47 - 05:46:47 14260
Madras/Culver 05:31:48 -16.0 AT Down 21.0 149.2 Low 05:16:48 - 05:46:48 14226
Redmond 05:31:49 -16.2 AT Down 21.3 149.1 Low 05:16:49 - 05:46:49 14203
Sisters 05:31:50 -16.0 AT Down 21.1 148.7 Low 05:16:50 - 05:46:50 14194
Bend 05:31:51 -16.3 AT Down 21.4 148.9 Low 05:16:51 - 05:46:51 14186
Oregon Observatory 05:31:51 -16.4 AT Down 21.5 148.8 Low 05:16:51 - 05:46:51 14172
La Pine/Gilchrist 05:31:51 -16.6 AT Down 21.7 148.7 Low 05:16:51 - 05:46:51 14158
North Lake 05:31:49 -17.2 AT Down 22.2 149.1 Low 05:16:49 - 05:46:49 14148
Paisley 05:31:49 -17.8 AT Down 22.9 149.4 Low 05:16:49 - 05:46:49 14123
Lakeview 05:31:49 -18.3 Dark Down 23.4 149.4 Low 05:16:49 - 05:46:49 14096
Chiloquin 05:31:52 -17.3 AT Down 22.5 148.1 Low 05:16:52 - 05:46:52 14078
Cedarville 05:31:50 -18.9 Dark Down 24.0 149.5 Low 05:16:50 - 05:46:50 14059
Klamath Falls 05:31:53 -17.6 AT Down 22.8 148.1 Low 05:16:53 - 05:46:53 14058
Tulelake 05:31:52 -18.0 AT Down 23.1 148.3 Low 05:16:52 - 05:46:52 14049
Fall River/Burney 05:31:53 -18.7 Dark Down 23.9 148.2 Low 05:16:53 - 05:46:53 13992
Susanville 05:31:52 -19.6 Dark Down 24.8 148.8 Low 05:16:52 - 05:46:52 13972
Gimple 05:31:51 -19.7 Dark Down 24.9 148.5 Low 05:16:51 - 05:46:51 13947
Greenville 05:31:52 -19.6 Dark Down 24.9 148.4 Low 05:16:52 - 05:46:52 13945
Reno 05:31:49 -20.6 Dark Down 25.8 149.3 Low 05:16:49 - 05:46:49 13938
Portola 05:31:51 -20.1 Dark Down 25.4 148.8 Low 05:16:51 - 05:46:51 13937
Quincy 05:31:54 -19.8 Dark Down 25.1 148.4 Low 05:16:54 - 05:46:54 13931
Yerington 05:31:48 -21.4 Dark Down 26.6 149.8 Low 05:16:48 - 05:46:48 13920
Carson City 05:31:50 -20.9 Dark Down 26.2 149.3 Low 05:16:50 - 05:46:50 13915
Tonopah 05:31:43 -23.0 Dark Down 28.1 151.5 Low 05:16:43 - 05:46:43 13914
Hawthorne 05:31:47 -22.0 Dark Down 27.2 150.2 Low 05:16:47 - 05:46:47 13904
Gardnerville 05:31:50 -21.2 Dark Down 26.4 149.2 Low 05:16:50 - 05:46:50 13900
Indian Springs 05:31:40 -24.9 Dark Down 30.0 152.6 Up 05:16:40 - 05:46:40 13856
Lee Vining 05:31:49 -22.2 Dark Down 27.5 149.6 Low 05:16:49 - 05:46:49 13851
Beatty 05:31:43 -24.2 Dark Down 29.3 151.6 Low 05:16:43 - 05:46:43 13847
Henderson 05:31:37 -25.7 Dark Down 30.7 153.1 Up 05:16:37 - 05:46:37 13839
Bishop 05:31:47 -23.1 Dark Down 28.3 150.1 Low 05:16:47 - 05:46:47 13831
Patrick 05:31:34 -26.7 Dark Down 31.7 154.1 Up 05:16:34 - 05:46:34 13828
DCO 05:31:32 -27.2 Dark Down 32.2 154.8 Up 05:16:32 - 05:46:32 13827
Kingman/Dolan Springs 05:31:35 -26.8 Dark Down 31.8 153.9 Up 05:16:35 - 05:46:35 13806
Searchlight/Boulder City 05:31:37 -26.2 Dark Down 31.3 153.1 Up 05:16:37 - 05:46:37 13801
Laughlin/Bullhead City 05:31:36 -26.6 Dark Down 31.7 153.3 Up 05:16:36 - 05:46:36 13789
Lone Pine 05:31:46 -23.8 Dark Down 29.1 150.3 Low 05:16:46 - 05:46:46 13788
Mohave Valley 05:31:36 -26.8 Dark Down 31.9 153.2 Up 05:16:36 - 05:46:36 13770
Lake Havasu City 05:31:36 -27.3 Dark Down 32.4 153.4 Up 05:16:36 - 05:46:36 13748
Parker 05:31:36 -27.6 Dark Down 32.7 153.3 Up 05:16:36 - 05:46:36 13724
Blythe 05:31:38 -27.9 Dark Down 33.0 152.9 Up 05:16:38 - 05:46:38 13677
Idyllwild 05:31:44 -26.8 Dark Down 32.1 150.8 Up 05:16:44 - 05:46:44 13622
CPSLO 05:31:55 -23.6 Dark Down 29.1 147.4 Low 05:16:55 - 05:46:55 13614
Calipatria 05:31:40 -27.9 Dark Down 33.1 151.8 Up 05:16:40 - 05:46:40 13612
Yuma 05:31:38 -28.6 Dark Down 33.8 152.5 Up 05:16:38 - 05:46:38 13607
Wildwood 05:31:49 -25.6 Dark Down 31.0 149.0 Up 05:16:49 - 05:46:49 13589

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 2017/06/01 18:16:32 UT

Marc W. Buie, Southwest Research Institute

RECON