RECON: TNO occultation with 14FX61

Event between 14FX61 and star GA0860:04195689 with event index number of 1562264

Geocentric closest approach at 2021/04/08 12:07:06 UTC

J2000 position of star is 13:22:20.3 -03:52:31
Equinox of date position of star is 13:23:25.8 -03:59:06
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 138 degrees from the moon. Moon is 12% illuminated.
TNO apparent brightness V=23.5

[RECON map]
TNO is 37.5 AU from the Sun and 36.5 AU from the Earth.
The TNO is moving 25.0 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 331 seconds.
The 1-sigma cross-track error in the shadow position is 3269 km.
The sky-plane scale is 26449.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.8
Diameter=166.7 km assuming a 5% albedo -- 6.7 sec chord
Diameter=68.1 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 14FX61, (2021/04/08 12:07UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:19.0 -11:16:18  1.0  7.32 134
65 Vir         13:24:25.1 -05:02:06  5.9  1.08 137
PPM 196462     13:24:33.5 -04:06:13  8.5  0.30 138
PPM 196444     13:23:35.6 -03:53:11  9.2  0.11 138
14FX61         13:23:26.4 -03:59:10 16.5       138
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 2.7 sigma about the mid-time.
The median site spacing is 9.2 km RECON observability=0.5 and success probability=0.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 12:06:29 -11.5 NT Down 16.2 242.6 Really Low 11:51:29 - 12:21:29 11068
Kelowna 12:06:28 -11.8 NT Down 16.5 242.6 Really Low 11:51:28 - 12:21:28 11054
Peachland 12:06:28 -12.0 AT Down 16.7 242.4 Really Low 11:51:28 - 12:21:28 11047
Summerland 12:06:27 -12.0 AT Down 16.7 242.5 Really Low 11:51:27 - 12:21:27 11044
Penticton 12:06:27 -12.0 AT Down 16.7 242.6 Really Low 11:51:27 - 12:21:27 11044
Oliver 12:06:26 -12.2 AT Down 16.9 242.7 Really Low 11:51:26 - 12:21:26 11033
Anarchist Mountain Observatory 12:06:25 -12.1 AT Down 16.8 242.9 Really Low 11:51:25 - 12:21:25 11031
Tonasket 12:06:25 -12.3 AT Down 17.0 242.9 Really Low 11:51:25 - 12:21:25 11020
Okanogan 12:06:22 -12.6 AT Down 17.3 242.9 Really Low 11:51:22 - 12:21:22 11007
Brewster 12:06:22 -12.8 AT Down 17.5 242.8 Really Low 11:51:22 - 12:21:22 10995
Manson/Chelan 12:06:21 -13.1 AT Down 17.8 242.5 Really Low 11:51:21 - 12:21:21 10984
Wenatchee 12:06:20 -13.4 AT Down 18.2 242.5 Really Low 11:51:20 - 12:21:20 10965
Victoria 12:06:29 -14.7 AT Down 19.4 239.6 Really Low 11:51:29 - 12:21:29 10957
Ellensburg 12:06:19 -13.8 AT Down 18.5 242.4 Really Low 11:51:19 - 12:21:19 10948
Pasco 12:06:14 -13.2 AT Down 18.0 243.8 Really Low 11:51:14 - 12:21:14 10941
PNWRO 12:06:13 -13.2 AT Down 17.9 244.1 Really Low 11:51:13 - 12:21:13 10936
Yakima 12:06:18 -14.0 AT Down 18.7 242.5 Really Low 11:51:18 - 12:21:18 10933
Toppenish/White Swan 12:06:16 -14.0 AT Down 18.7 242.7 Really Low 11:51:16 - 12:21:16 10928
Goldendale 12:06:15 -14.5 AT Down 19.2 242.5 Really Low 11:51:15 - 12:21:15 10902
The Dalles 12:06:15 -14.8 AT Down 19.5 242.3 Really Low 11:51:15 - 12:21:15 10888
Maupin 12:06:14 -14.9 AT Down 19.7 242.5 Really Low 11:51:14 - 12:21:14 10874
Dunrhomin 12:05:33 -5.9 CT Up 10.6 255.6 Really Low 11:50:33 - 12:20:33 10847
Redmond 12:06:11 -15.4 AT Down 20.1 242.7 Low 11:51:11 - 12:21:11 10837
Sisters 12:06:11 -15.7 AT Down 20.4 242.4 Low 11:51:11 - 12:21:11 10832
Bend 12:06:10 -15.6 AT Down 20.3 242.7 Low 11:51:10 - 12:21:10 10827
Oregon Observatory 12:06:09 -15.8 AT Down 20.5 242.6 Low 11:51:09 - 12:21:09 10818
La Pine/Gilchrist 12:06:08 -15.9 AT Down 20.6 242.6 Low 11:51:08 - 12:21:08 10809
North Lake 12:06:05 -15.7 AT Down 20.5 243.3 Low 11:51:05 - 12:21:05 10800
Paisley 12:06:02 -15.7 AT Down 20.5 243.7 Low 11:51:02 - 12:21:02 10782
Lakeview 12:06:01 -15.8 AT Down 20.6 244.1 Low 11:51:01 - 12:21:01 10764
Klamath Falls 12:06:05 -16.8 AT Down 21.5 242.9 Low 11:51:05 - 12:21:05 10743
Cedarville 12:05:58 -16.0 AT Down 20.7 244.4 Low 11:50:58 - 12:20:58 10738
Fall River/Burney 12:05:58 -17.1 AT Down 21.8 243.6 Low 11:50:58 - 12:20:58 10696
Susanville 12:05:56 -16.8 AT Down 21.6 244.4 Low 11:50:56 - 12:20:56 10679
Gimple 12:05:55 -17.1 AT Down 21.8 244.3 Low 11:50:55 - 12:20:55 10663
Greenville 12:05:54 -17.2 AT Down 21.9 244.3 Low 11:50:54 - 12:20:54 10661
Portola 12:05:52 -17.0 AT Down 21.7 244.8 Low 11:50:52 - 12:20:52 10654
Quincy 12:05:53 -17.3 AT Down 22.0 244.3 Low 11:50:53 - 12:20:53 10652
Reno 12:05:50 -16.6 AT Down 21.4 245.3 Low 11:50:50 - 12:20:50 10652
Yerington 12:05:48 -16.4 AT Down 21.1 246.0 Low 11:50:48 - 12:20:48 10635
Carson City 12:05:50 -16.8 AT Down 21.5 245.5 Low 11:50:50 - 12:20:50 10635
Gardnerville 12:05:48 -16.9 AT Down 21.6 245.6 Low 11:50:48 - 12:20:48 10624
Hawthorne 12:05:45 -16.2 AT Down 21.0 246.6 Low 11:50:45 - 12:20:45 10620
Tonopah 12:05:41 -15.4 AT Down 20.1 247.8 Low 11:50:41 - 12:20:41 10619
Lee Vining 12:05:43 -16.8 AT Down 21.5 246.4 Low 11:50:43 - 12:20:43 10585
Beatty 12:05:35 -15.5 AT Down 20.2 248.5 Low 11:50:35 - 12:20:35 10566
Bishop 12:05:40 -16.6 AT Down 21.3 247.2 Low 11:50:40 - 12:20:40 10566
Indian Springs 12:05:32 -14.9 AT Up 19.6 249.3 Really Low 11:50:32 - 12:20:32 10564
Henderson 12:05:30 -14.5 AT Up 19.2 250.0 Really Low 11:50:30 - 12:20:30 10545
Patrick 12:05:27 -13.9 AT Up 18.6 250.9 Really Low 11:50:27 - 12:20:27 10527
Kingman/Dolan Springs 12:05:25 -14.1 AT Up 18.8 250.9 Really Low 11:50:25 - 12:20:25 10513
Laughlin/Bullhead City 12:05:26 -14.5 AT Up 19.2 250.5 Really Low 11:50:26 - 12:20:26 10504
Mohave Valley 12:05:27 -14.6 AT Up 19.3 250.6 Really Low 11:50:27 - 12:20:27 10489
Lake Havasu City 12:05:23 -14.6 AT Up 19.2 250.9 Really Low 11:50:23 - 12:20:23 10471
George/Scottsdale 12:05:17 -12.9 AT Up 17.6 252.8 Really Low 11:50:17 - 12:20:17 10459
Parker 12:05:23 -14.7 AT Up 19.3 251.1 Really Low 11:50:23 - 12:20:23 10451
CPSLO 12:05:37 -19.1 Dark Down 23.8 246.3 Low 11:50:37 - 12:20:37 10418
Blythe 12:05:21 -15.1 AT Up 19.8 251.0 Really Low 11:50:21 - 12:20:21 10418
Idyllwild 12:05:24 -16.7 AT Up 21.4 249.6 Low 11:50:24 - 12:20:24 10395
Wildwood 12:05:29 -18.0 Dark Down 22.7 248.2 Low 11:50:29 - 12:20:29 10386
Calipatria 12:05:20 -16.0 AT Up 20.7 250.6 Low 11:50:20 - 12:20:20 10377
Yuma 12:05:16 -15.5 AT Up 20.1 251.3 Low 11:50:16 - 12:20:16 10364

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 14FX61, (2021/04/08 12:07UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0  7.32 134
65 Vir         13:23:18.9 -04:55:28  5.9  1.08 137
PPM 196462     13:23:27.3 -03:59:35  8.5  0.30 138
PPM 196444     13:22:29.5 -03:46:33  9.2  0.11 138
14FX61         13:22:20.3 -03:52:31 16.5       138
Positions are for J2000

Event circumstances last updated at 2021/01/19 21:54:46 UT

Marc W. Buie, Southwest Research Institute

RECON