RECON: TNO occultation with 15874

Event between (15874) 96TL66 and star UC4-486-011020 with event index number of 321219

Geocentric closest approach at 2019/09/11 09:50:42 UTC

J2000 position of star is 05:17:51.6 +07:09:16
Equinox of date position of star is 05:18:52.6 +07:10:25
Stellar brightness R=12.4, use SENSEUP=16
Star is 119 degrees from the moon. Moon is 93% illuminated.
TNO apparent brightness V=21.3

[RECON map]
TNO is 37.9 AU from the Sun and 37.9 AU from the Earth.
The TNO is moving 11.3 km/sec on the sky relative to the star, or, 1.5 arcsec/hr.
The 1-sigma error in the time of the event is 354 seconds.
The 1-sigma cross-track error in the shadow position is 3727 km.
The sky-plane scale is 27519.1 km/arcsec.

The TNO has an absolute magnitude Hv=5.3
Diameter=524.8 km assuming a 5% albedo -- 46.3 sec chord
Diameter=214.3 km assuming a 30% albedo -- 18.9 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 15874, (2019/09/11 09:51UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:14.3 +07:24:33  0.4  9.26 128
Bellatrix      05:26:11.3 +06:21:57  1.6  1.98 120
PPM 148951     05:27:42.5 +06:53:03  6.5  2.20 121
PPM 148714     05:18:42.7 +07:10:14  8.4  0.05 119
15874          05:18:55.4 +07:10:28 12.4       119
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 2.5 sigma about the mid-time.
The median site spacing is 21.0 km RECON observability=1.0 and success probability=5.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 09:42:09 -30.7 Dark Up 22.6 106.5 Low 09:27:09 - 09:57:09 -5591
Summerland 09:42:06 -30.9 Dark Up 22.3 106.2 Low 09:27:06 - 09:57:06 -5604
Penticton 09:42:06 -31.1 Dark Up 22.5 106.2 Low 09:27:06 - 09:57:06 -5633
Okanagan Falls 09:42:07 -31.3 Dark Up 22.6 106.1 Low 09:27:07 - 09:57:07 -5654
Oliver 09:42:09 -31.4 Dark Up 22.6 106.1 Low 09:27:09 - 09:57:09 -5670
Anarchist Mountain Observatory 09:42:13 -31.5 Dark Up 22.8 106.2 Low 09:27:13 - 09:57:13 -5684
Oroville 09:42:11 -31.6 Dark Up 22.8 106.1 Low 09:27:11 - 09:57:11 -5694
Tonasket 09:42:13 -31.8 Dark Up 22.9 106.0 Low 09:27:13 - 09:57:13 -5718
Okanogan 09:42:11 -32.1 Dark Up 22.9 105.7 Low 09:27:11 - 09:57:11 -5757
Brewster 09:42:13 -32.4 Dark Up 22.8 105.4 Low 09:27:13 - 09:57:13 -5790
Manson/Chelan 09:42:13 -32.7 Dark Up 22.6 105.1 Low 09:27:13 - 09:57:13 -5820
Entiat 09:42:13 -32.9 Dark Up 22.6 104.9 Low 09:27:13 - 09:57:13 -5845
Wenatchee 09:42:13 -33.2 Dark Up 22.6 104.7 Low 09:27:13 - 09:57:13 -5874
Ellensburg 09:42:12 -33.6 Dark Up 22.6 104.4 Low 09:27:12 - 09:57:12 -5922
Yakima 09:42:10 -34.0 Dark Up 22.7 104.2 Low 09:27:10 - 09:57:10 -5966
Pasco 09:42:18 -33.7 Dark Up 23.7 105.2 Low 09:27:18 - 09:57:18 -5967
Toppenish/White Swan 09:42:16 -34.1 Dark Up 22.9 104.3 Low 09:27:16 - 09:57:16 -5984
PNWRO 09:42:20 -33.8 Dark Up 24.0 105.3 Low 09:27:20 - 09:57:20 -5987
George/Umatilla 09:42:20 -34.1 Dark Up 23.7 104.9 Low 09:27:20 - 09:57:20 -6007
Goldendale 09:42:16 -34.7 Dark Up 22.7 103.7 Low 09:27:16 - 09:57:16 -6052
The Dalles 09:42:16 -35.0 Dark Up 22.5 103.3 Low 09:27:16 - 09:57:16 -6084
Niwot 09:43:20 -31.3 Dark Up 35.6 113.7 Up 09:28:20 - 09:58:20 -6110
Maupin 09:42:16 -35.3 Dark Up 22.7 103.2 Low 09:27:16 - 09:57:16 -6125
Madras/Culver 09:42:13 -35.8 Dark Up 22.8 103.0 Low 09:27:13 - 09:57:13 -6184
Redmond 09:42:19 -36.1 Dark Up 22.8 102.8 Low 09:27:19 - 09:57:19 -6222
Sisters 09:42:16 -36.3 Dark Up 22.5 102.5 Low 09:27:16 - 09:57:16 -6229
Bend 09:42:20 -36.4 Dark Up 22.8 102.6 Low 09:27:20 - 09:57:20 -6248
Oregon Observatory 09:42:18 -36.6 Dark Up 22.7 102.4 Low 09:27:18 - 09:57:18 -6269
La Pine/Gilchrist 09:42:18 -36.8 Dark Up 22.7 102.3 Low 09:27:18 - 09:57:18 -6291
North Lake 09:42:23 -36.9 Dark Up 23.3 102.6 Low 09:27:23 - 09:57:23 -6323
Paisley 09:42:22 -37.2 Dark Up 23.6 102.6 Low 09:27:22 - 09:57:22 -6371
Chiloquin 09:42:22 -37.8 Dark Up 22.7 101.6 Low 09:27:22 - 09:57:22 -6415
Lakeview 09:42:24 -37.6 Dark Up 23.9 102.6 Low 09:27:24 - 09:57:24 -6419
Klamath Falls 09:42:23 -38.1 Dark Up 22.8 101.5 Low 09:27:23 - 09:57:23 -6449
Tulelake 09:42:23 -38.2 Dark Up 23.1 101.6 Low 09:27:23 - 09:57:23 -6470
Cedarville 09:42:29 -38.0 Dark Up 24.2 102.4 Low 09:27:29 - 09:57:29 -6482
Fall River/Burney 09:42:25 -38.9 Dark Up 23.4 101.3 Low 09:27:25 - 09:57:25 -6562
Susanville 09:42:30 -39.2 Dark Up 24.1 101.6 Low 09:27:30 - 09:57:30 -6609
Gimple 09:42:27 -39.5 Dark Up 23.9 101.3 Low 09:27:27 - 09:57:27 -6642
Greenville 09:42:33 -39.5 Dark Up 23.9 101.3 Low 09:27:33 - 09:57:33 -6644
Quincy 09:42:34 -39.7 Dark Up 23.9 101.2 Low 09:27:34 - 09:57:34 -6665
Portola 09:42:31 -39.6 Dark Up 24.3 101.5 Low 09:27:31 - 09:57:31 -6666
Reno 09:42:34 -39.5 Dark Up 24.9 101.8 Low 09:27:34 - 09:57:34 -6676
Carson City 09:42:36 -39.8 Dark Up 25.0 101.7 Low 09:27:36 - 09:57:36 -6712
Yerington 09:42:38 -39.6 Dark Up 25.5 102.0 Low 09:27:38 - 09:57:38 -6714
Gardnerville 09:42:37 -39.9 Dark Up 25.1 101.6 Low 09:27:37 - 09:57:37 -6735
Hawthorne 09:42:43 -39.8 Dark Up 26.0 102.2 Low 09:27:43 - 09:57:43 -6746
Tonopah 09:42:50 -39.4 Dark Up 27.2 103.0 Low 09:27:50 - 09:57:50 -6751
Lee Vining 09:42:43 -40.4 Dark Up 25.7 101.6 Low 09:27:43 - 09:57:43 -6817
Indian Springs 09:43:01 -39.7 Dark Up 28.8 103.3 Low 09:28:01 - 09:58:01 -6850
Beatty 09:42:56 -40.1 Dark Up 27.9 102.7 Low 09:27:56 - 09:57:56 -6852
Bishop 09:42:48 -40.5 Dark Up 26.5 101.8 Low 09:27:48 - 09:57:48 -6856
Henderson 09:43:02 -39.7 Dark Up 29.5 103.5 Low 09:28:02 - 09:58:02 -6879
Patrick 09:43:13 -39.6 Dark Up 30.5 104.0 Up 09:28:13 - 09:58:13 -6901
DCO 09:43:16 -39.4 Dark Up 31.2 104.3 Up 09:28:16 - 09:58:16 -6905
Lone Pine 09:42:50 -41.0 Dark Up 26.9 101.7 Low 09:27:50 - 09:57:50 -6922
Kingman/Dolan Springs 09:43:11 -39.8 Dark Up 30.4 103.7 Up 09:28:11 - 09:58:11 -6929
Searchlight/Boulder City 09:43:08 -40.1 Dark Up 29.7 103.3 Low 09:28:08 - 09:58:08 -6933
Laughlin/Bullhead City 09:43:10 -40.1 Dark Up 30.0 103.4 Up 09:28:10 - 09:58:10 -6950
Mohave Valley 09:43:11 -40.3 Dark Up 30.1 103.2 Up 09:28:11 - 09:58:11 -6976
Lake Havasu City 09:43:15 -40.5 Dark Up 30.4 103.2 Up 09:28:15 - 09:58:15 -7006
Parker 09:43:17 -40.7 Dark Up 30.5 103.0 Up 09:28:17 - 09:58:17 -7039
Blythe 09:43:16 -41.2 Dark Up 30.4 102.5 Up 09:28:16 - 09:58:16 -7100
CPSLO 09:42:48 -43.3 Dark Up 25.0 99.3 Low 09:27:48 - 09:57:48 -7125
Idyllwild 09:43:09 -42.4 Dark Up 28.6 101.1 Low 09:28:09 - 09:58:09 -7161
Calipatria 09:43:18 -42.1 Dark Up 29.7 101.6 Low 09:28:18 - 09:58:18 -7180
Wildwood 09:43:02 -43.2 Dark Up 27.0 100.1 Low 09:28:02 - 09:58:02 -7185
Yuma 09:43:16 -41.9 Dark Up 30.5 101.9 Up 09:28:16 - 09:58:16 -7190

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 15874, (2019/09/11 09:51UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  9.26 128
Bellatrix      05:25:07.8 +06:20:58  1.6  1.98 120
PPM 148951     05:26:38.8 +06:52:06  6.5  2.20 121
PPM 148714     05:17:38.9 +07:09:02  8.4  0.05 119
15874          05:17:51.6 +07:09:16 12.4       119
Positions are for J2000

Event circumstances last updated at 2018/10/24 21:55:24 UT

Marc W. Buie, Southwest Research Institute

RECON