RECON: TNO occultation with 14JE80

Event between 14JE80 and star GA0740:21174139 with event index number of 1111281

Geocentric closest approach at 2021/07/20 05:50:08 UTC

J2000 position of star is 18:37:47.2 -14:14:27
Equinox of date position of star is 18:38:59.7 -14:13:16
Stellar brightness G=15.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 35 degrees from the moon. Moon is 81% illuminated.
TNO apparent brightness V=22.3

[RECON map]
TNO is 18.2 AU from the Sun and 17.3 AU from the Earth.
The TNO is moving 20.3 km/sec on the sky relative to the star, or, 5.8 arcsec/hr.
The 1-sigma error in the time of the event is 168 seconds.
The 1-sigma cross-track error in the shadow position is 2187 km.
The sky-plane scale is 12525.4 km/arcsec.

The TNO has an absolute magnitude Hv=9.7
Diameter=70.1 km assuming a 5% albedo -- 3.5 sec chord
Diameter=28.6 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14JE80, (2021/07/20 05:50UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:43.9 -26:28:41  0.9 32.35   7
Nunki          18:56:36.0 -26:16:05  2.0 12.73  37
PPM 234707     18:34:52.9 -14:50:09  6.1  1.17  34
PPM 234820     18:39:17.8 -13:59:05  6.9  0.25  35
14JE80         18:39:00.7 -14:13:15 15.7        35
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 15.1 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)
Victoria 05:49:33 -13.1 AT Up 25.4 161.5 Low 05:35:03 - 06:04:03 7681
Clarence Fulton 05:49:17 -13.2 AT Up 24.5 165.9 Low 05:34:47 - 06:03:47 7671
Peachland 05:49:19 -13.4 AT Up 24.9 165.4 Low 05:34:49 - 06:03:49 7660
Kelowna 05:49:18 -13.5 AT Up 24.8 165.7 Low 05:34:48 - 06:03:48 7659
Summerland 05:49:18 -13.6 AT Up 25.0 165.5 Low 05:34:48 - 06:03:48 7653
Penticton 05:49:19 -13.7 AT Up 25.1 165.6 Low 05:34:49 - 06:03:49 7647
Oliver 05:49:20 -14.0 AT Up 25.5 165.6 Low 05:34:50 - 06:03:50 7633
Anarchist Mountain Observatory 05:49:19 -14.2 AT Up 25.7 165.7 Low 05:34:49 - 06:03:49 7623
Tonasket 05:49:20 -14.4 AT Up 26.0 165.6 Low 05:34:50 - 06:03:50 7611
Okanogan 05:49:21 -14.7 AT Up 26.3 165.4 Low 05:34:51 - 06:03:51 7600
Brewster 05:49:22 -14.8 AT Up 26.5 165.2 Low 05:34:52 - 06:03:52 7593
Manson/Chelan 05:49:24 -14.9 AT Up 26.6 164.8 Low 05:34:54 - 06:03:54 7591
Wenatchee 05:49:25 -15.2 AT Up 27.1 164.5 Low 05:34:55 - 06:03:55 7574
Ellensburg 05:49:27 -15.5 AT Up 27.4 164.3 Low 05:34:57 - 06:03:57 7561
Yakima 05:49:27 -15.8 AT Up 27.8 164.2 Low 05:34:57 - 06:03:57 7543
Toppenish/White Swan 05:49:28 -16.1 AT Up 28.0 164.3 Low 05:34:58 - 06:03:58 7530
Goldendale 05:49:30 -16.4 AT Up 28.5 163.8 Low 05:35:00 - 06:04:00 7514
The Dalles 05:49:31 -16.4 AT Up 28.6 163.4 Low 05:35:01 - 06:04:01 7511
Pasco 05:49:23 -16.6 AT Up 28.4 165.7 Low 05:34:53 - 06:03:53 7497
Maupin 05:49:32 -16.8 AT Up 29.1 163.4 Low 05:35:02 - 06:04:02 7489
PNWRO 05:49:23 -16.9 AT Up 28.7 165.9 Low 05:34:53 - 06:03:53 7482
Sisters 05:49:36 -17.3 AT Up 29.8 162.8 Low 05:35:06 - 06:04:06 7458
Redmond 05:49:34 -17.5 AT Up 29.9 163.2 Low 05:35:04 - 06:04:04 7449
Bend 05:49:35 -17.6 AT Up 30.1 163.0 Up 05:35:05 - 06:04:05 7441
Oregon Observatory 05:49:36 -17.7 AT Up 30.2 162.8 Up 05:35:06 - 06:04:06 7436
La Pine/Gilchrist 05:49:37 -17.9 AT Up 30.4 162.7 Up 05:35:07 - 06:04:07 7427
North Lake 05:49:35 -18.5 Dark Up 31.0 163.3 Up 05:35:05 - 06:04:05 7393
Chiloquin 05:49:40 -18.6 Dark Up 31.4 162.2 Up 05:35:10 - 06:04:10 7379
Klamath Falls 05:49:40 -18.9 Dark Up 31.7 162.2 Up 05:35:10 - 06:04:10 7360
Paisley 05:49:35 -19.1 Dark Up 31.6 163.6 Up 05:35:05 - 06:04:05 7357
Lakeview 05:49:35 -19.6 Dark Up 32.1 163.7 Up 05:35:05 - 06:04:05 7326
Fall River/Burney 05:49:41 -20.1 Dark Up 33.0 162.4 Up 05:35:11 - 06:04:11 7289
Cedarville 05:49:36 -20.2 Dark Up 32.8 163.8 Up 05:35:06 - 06:04:06 7288
Susanville 05:49:39 -20.9 Dark Up 33.7 163.1 Up 05:35:09 - 06:04:09 7239
Greenville 05:49:41 -21.0 Dark Up 33.9 162.7 Up 05:35:11 - 06:04:11 7230
Gimple 05:49:41 -21.0 Dark Up 33.9 162.8 Up 05:35:11 - 06:04:11 7228
Quincy 05:49:41 -21.2 Dark Up 34.1 162.7 Up 05:35:11 - 06:04:11 7219
Portola 05:49:40 -21.5 Dark Up 34.3 163.2 Up 05:35:10 - 06:04:10 7201
Reno 05:49:38 -22.0 Dark Up 34.7 163.9 Up 05:35:08 - 06:04:08 7171
Carson City 05:49:38 -22.3 Dark Up 35.1 163.8 Up 05:35:08 - 06:04:08 7150
Gardnerville 05:49:39 -22.5 Dark Up 35.3 163.8 Up 05:35:09 - 06:04:09 7135
Yerington 05:49:37 -22.7 Dark Up 35.4 164.5 Up 05:35:07 - 06:04:07 7124
Hawthorne 05:49:36 -23.3 Dark Up 36.0 165.0 Up 05:35:06 - 06:04:06 7084
Lee Vining 05:49:38 -23.6 Dark Up 36.4 164.4 Up 05:35:08 - 06:04:08 7063
Tonopah 05:49:31 -24.3 Dark Up 36.7 166.6 Up 05:35:01 - 06:04:01 7022
Bishop 05:49:36 -24.4 Dark Up 37.1 165.1 Up 05:35:06 - 06:04:06 7009
Beatty 05:49:32 -25.5 Dark Up 37.9 167.0 Up 05:35:02 - 06:04:02 6939
CPSLO 05:49:49 -25.1 Dark Up 38.6 162.0 Up 05:35:19 - 06:04:19 6937
Indian Springs 05:49:28 -26.2 Dark Up 38.4 168.2 Up 05:34:58 - 06:03:58 6891
Henderson 05:49:25 -27.0 Dark Up 39.0 168.9 Up 05:34:55 - 06:03:55 6838
Dunrhomin 05:48:40 -26.5 Dark Up 35.5 180.9 Up 05:34:10 - 06:03:10 6827
Wildwood 05:49:43 -27.0 Dark Up 40.2 164.2 Up 05:35:13 - 06:04:13 6808
Laughlin/Bullhead City 05:49:25 -27.9 Dark Up 39.9 169.3 Up 05:34:55 - 06:03:55 6771
Patrick 05:49:21 -28.0 Dark Up 39.8 170.2 Up 05:34:51 - 06:03:51 6768
Kingman/Dolan Springs 05:49:22 -28.1 Dark Up 40.0 170.0 Up 05:34:52 - 06:03:52 6759
Mohave Valley 05:49:25 -28.1 Dark Up 40.2 169.3 Up 05:34:55 - 06:03:55 6753
Idyllwild 05:49:36 -28.2 Dark Up 41.0 166.4 Up 05:35:06 - 06:04:06 6736
Lake Havasu City 05:49:25 -28.6 Dark Up 40.6 169.5 Up 05:34:55 - 06:03:55 6720
Parker 05:49:27 -28.9 Dark Up 41.0 169.5 Up 05:34:57 - 06:03:57 6696
Blythe 05:49:27 -29.2 Dark Up 41.5 169.1 Up 05:34:57 - 06:03:57 6669
Calipatria 05:49:32 -29.2 Dark Up 41.8 167.8 Up 05:35:02 - 06:04:02 6662
Yuma 05:49:29 -30.0 Dark Up 42.4 168.9 Up 05:34:59 - 06:03:59 6608
George/Scottsdale 05:49:15 -30.2 Dark Up 41.7 172.5 Up 05:34:45 - 06:03:45 6599

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 14JE80, (2021/07/20 05:50UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 32.35   7
Nunki          18:55:15.9 -26:17:49  2.0 12.73  37
PPM 234707     18:33:39.1 -14:51:14  6.1  1.17  34
PPM 234820     18:38:04.5 -14:00:18  6.9  0.25  35
14JE80         18:37:47.2 -14:14:27 15.7        35
Positions are for J2000

Event circumstances last updated at 2021/04/08 23:41:48 UT

Marc W. Buie, Southwest Research Institute

RECON