RECON: TNO occultation with 523692

Event between (523692) 14EZ51 and star GA0640:07096413 with event index number of 307986

Geocentric closest approach at 2019/06/01 05:34:58 UTC

J2000 position of star is 15:44:36.7 -25:34:43
Equinox of date position of star is 15:45:45.7 -25:38:15
Stellar brightness G=16.8, use SENSEUP=128
Star is 161 degrees from the moon. Moon is 6% illuminated.
TNO apparent brightness V=21.2

[RECON map]
TNO is 55.5 AU from the Sun and 54.5 AU from the Earth.
The TNO is moving 25.2 km/sec on the sky relative to the star, or, 2.3 arcsec/hr.
The 1-sigma error in the time of the event is 148 seconds.
The 1-sigma cross-track error in the shadow position is 2434 km.
The sky-plane scale is 39536.4 km/arcsec.

The TNO has an absolute magnitude Hv=3.8
Diameter=1047.2 km assuming a 5% albedo -- 41.6 sec chord
Diameter=427.5 km assuming a 30% albedo -- 17.0 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 523692, (2019/06/01 05:35UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.1 -26:28:24  0.9 10.10 152
7Del Sco       16:01:29.1 -22:40:32  2.3  4.65 160
1 Sco          15:52:09.1 -25:48:32  4.4  1.45 160
PPM 264656     15:46:56.5 -25:33:19  7.6  0.28 161
PPM 264638     15:45:41.5 -25:23:36  9.0  0.25 161
523692         15:45:46.7 -25:38:19 16.8       160
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 6.5 km RECON observability=0.5 and success probability=2.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 05:36:50 -11.8 NT Down 12.1 159.9 Really Low 05:24:02 - 05:49:39 6187
Summerland 05:36:51 -11.7 NT Down 12.0 159.5 Really Low 05:24:02 - 05:49:39 6176
Penticton 05:36:51 -12.1 AT Down 12.4 159.7 Really Low 05:24:02 - 05:49:39 6169
Okanagan Falls 05:36:51 -12.2 AT Down 12.5 159.7 Really Low 05:24:02 - 05:49:39 6161
Oliver 05:36:51 -12.4 AT Down 12.7 159.7 Really Low 05:24:02 - 05:49:39 6156
Anarchist Mountain Observatory 05:36:51 -12.6 AT Down 12.9 159.8 Really Low 05:24:02 - 05:49:39 6154
Oroville 05:36:51 -12.6 AT Down 12.9 159.8 Really Low 05:24:03 - 05:49:40 6149
Tonasket 05:36:52 -12.8 AT Down 13.2 159.7 Really Low 05:24:03 - 05:49:40 6141
Niwot 05:36:15 -25.0 Dark Down 23.9 172.3 Low 05:23:27 - 05:49:04 6132
SwRI 05:36:14 -25.1 Dark Down 24.0 172.2 Low 05:23:26 - 05:49:03 6125
Okanogan 05:36:52 -13.0 AT Down 13.4 159.6 Really Low 05:24:04 - 05:49:41 6123
Brewster 05:36:53 -13.2 AT Down 13.7 159.4 Really Low 05:24:05 - 05:49:42 6107
Manson/Chelan 05:36:53 -13.2 AT Down 13.8 159.0 Really Low 05:24:05 - 05:49:42 6089
Entiat 05:36:54 -13.4 AT Down 14.0 159.0 Really Low 05:24:06 - 05:49:43 6078
Wenatchee 05:36:55 -13.6 AT Down 14.2 158.8 Really Low 05:24:07 - 05:49:44 6065
Pasco 05:36:54 -15.0 AT Down 15.5 159.8 Really Low 05:24:05 - 05:49:42 6049
PNWRO 05:36:52 -15.3 AT Down 15.8 160.0 Really Low 05:24:03 - 05:49:40 6045
Ellensburg 05:36:56 -13.8 AT Down 14.5 158.6 Really Low 05:24:07 - 05:49:44 6042
George/Umatilla 05:36:54 -15.2 AT Down 15.8 159.6 Really Low 05:24:05 - 05:49:42 6029
Yakima 05:36:57 -14.2 AT Down 14.9 158.6 Really Low 05:24:08 - 05:49:45 6024
Toppenish/White Swan 05:36:55 -14.4 AT Down 15.1 158.7 Really Low 05:24:07 - 05:49:44 6019
Goldendale 05:36:58 -14.7 AT Down 15.5 158.3 Really Low 05:24:09 - 05:49:46 5983
The Dalles 05:36:59 -14.7 AT Down 15.6 157.9 Really Low 05:24:10 - 05:49:47 5963
Maupin 05:36:59 -15.1 AT Down 16.1 158.0 Really Low 05:24:10 - 05:49:47 5947
Madras/Culver 05:36:59 -15.6 AT Down 16.6 157.9 Really Low 05:24:10 - 05:49:47 5921
Redmond 05:37:00 -15.8 AT Down 16.9 157.8 Really Low 05:24:11 - 05:49:48 5903
Sisters 05:37:00 -15.7 AT Down 16.7 157.4 Really Low 05:24:11 - 05:49:48 5892
Bend 05:37:00 -16.0 AT Down 17.0 157.6 Really Low 05:24:12 - 05:49:49 5888
Oregon Observatory 05:37:00 -16.0 AT Down 17.2 157.5 Really Low 05:24:12 - 05:49:49 5876
La Pine/Gilchrist 05:37:00 -16.2 AT Down 17.3 157.4 Really Low 05:24:12 - 05:49:49 5865
North Lake 05:37:00 -16.8 AT Down 17.9 157.9 Really Low 05:24:12 - 05:49:49 5862
Paisley 05:36:59 -17.4 AT Down 18.5 158.2 Really Low 05:24:10 - 05:49:47 5846
Lakeview 05:36:59 -17.9 AT Down 19.0 158.3 Really Low 05:24:10 - 05:49:47 5826
Chiloquin 05:37:03 -16.9 AT Down 18.3 157.0 Really Low 05:24:14 - 05:49:51 5800
Cedarville 05:36:59 -18.5 Dark Down 19.7 158.3 Really Low 05:24:11 - 05:49:48 5799
Klamath Falls 05:37:03 -17.3 AT Down 18.6 157.0 Really Low 05:24:15 - 05:49:52 5785
Tulelake 05:37:03 -17.6 AT Down 18.9 157.2 Really Low 05:24:14 - 05:49:51 5781
Fall River/Burney 05:37:02 -18.4 Dark Down 19.8 157.2 Really Low 05:24:14 - 05:49:51 5736
Susanville 05:37:01 -19.2 Dark Down 20.6 157.8 Low 05:24:13 - 05:49:50 5726
Reno 05:36:59 -20.3 Dark Down 21.6 158.4 Low 05:24:10 - 05:49:47 5706
Gimple 05:37:02 -19.4 Dark Down 20.8 157.5 Low 05:24:14 - 05:49:51 5705
Tonopah 05:36:53 -22.6 Dark Down 23.7 160.6 Low 05:24:05 - 05:49:42 5705
Greenville 05:37:02 -19.3 Dark Down 20.8 157.5 Low 05:24:14 - 05:49:51 5703
Portola 05:37:01 -19.8 Dark Down 21.2 157.8 Low 05:24:12 - 05:49:49 5700
Yerington 05:36:58 -21.0 Dark Down 22.3 158.9 Low 05:24:09 - 05:49:46 5696
Quincy 05:37:02 -19.5 Dark Down 20.9 157.4 Low 05:24:13 - 05:49:50 5692
Hawthorne 05:36:57 -21.7 Dark Down 22.9 159.3 Low 05:24:09 - 05:49:46 5687
Carson City 05:37:00 -20.6 Dark Down 22.0 158.4 Low 05:24:12 - 05:49:49 5687
Gardnerville 05:37:00 -20.8 Dark Down 22.2 158.4 Low 05:24:11 - 05:49:48 5675
Indian Springs 05:36:49 -24.5 Dark Down 25.5 161.8 Low 05:24:00 - 05:49:37 5669
DCO 05:36:40 -26.8 Dark Down 27.5 164.0 Low 05:23:52 - 05:49:29 5660
Henderson 05:36:46 -25.3 Dark Down 26.2 162.4 Low 05:23:58 - 05:49:35 5659
Patrick 05:36:43 -26.3 Dark Down 27.1 163.4 Low 05:23:55 - 05:49:32 5657
Beatty 05:36:52 -23.8 Dark Down 24.9 160.8 Low 05:24:03 - 05:49:40 5655
Lee Vining 05:36:58 -21.9 Dark Down 23.3 158.8 Low 05:24:09 - 05:49:46 5641
Kingman/Dolan Springs 05:36:44 -26.4 Dark Down 27.2 163.2 Low 05:23:55 - 05:49:32 5638
Bishop 05:36:57 -22.7 Dark Down 24.1 159.4 Low 05:24:08 - 05:49:45 5630
Searchlight/Boulder City 05:36:47 -25.8 Dark Down 26.8 162.4 Low 05:23:59 - 05:49:36 5628
Laughlin/Bullhead City 05:36:45 -26.2 Dark Down 27.1 162.6 Low 05:23:56 - 05:49:33 5622
Mohave Valley 05:36:45 -26.4 Dark Down 27.4 162.6 Low 05:23:57 - 05:49:34 5606
Lone Pine 05:36:55 -23.5 Dark Down 24.9 159.6 Low 05:24:07 - 05:49:44 5597
Lake Havasu City 05:36:44 -26.9 Dark Down 27.8 162.8 Low 05:23:56 - 05:49:33 5590
Parker 05:36:45 -27.2 Dark Down 28.2 162.8 Low 05:23:57 - 05:49:34 5570
Blythe 05:36:46 -27.5 Dark Down 28.6 162.4 Low 05:23:57 - 05:49:34 5529
Yuma 05:36:46 -28.3 Dark Down 29.5 162.2 Low 05:23:58 - 05:49:35 5471
Calipatria 05:36:48 -27.5 Dark Down 28.8 161.4 Low 05:24:00 - 05:49:37 5470
Idyllwild 05:36:53 -26.5 Dark Down 27.9 160.4 Low 05:24:05 - 05:49:42 5470
CPSLO 05:37:05 -23.4 Dark Down 25.3 156.9 Low 05:24:16 - 05:49:53 5437
Wildwood 05:36:59 -25.3 Dark Down 27.1 158.6 Low 05:24:10 - 05:49:47 5431

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 523692, (2019/06/01 05:35UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 10.10 152
7Del Sco       16:00:20.0 -22:37:18  2.3  4.65 160
1 Sco          15:50:58.8 -25:45:06  4.4  1.45 160
PPM 264656     15:45:46.4 -25:29:44  7.6  0.28 161
PPM 264638     15:44:31.6 -25:20:00  9.0  0.25 161
523692         15:44:36.7 -25:34:43 16.8       161
Positions are for J2000

Event circumstances last updated at 2019/02/12 08:16:16 UT

Marc W. Buie, Southwest Research Institute

RECON