RECON: TNO occultation with 14WE510

Event between 14WE510 and star GA1120:02351991 with event index number of 2571236

Geocentric closest approach at 2027/12/30 06:08:50 UTC

J2000 position of star is 06:40:13.9 +23:10:53
Equinox of date position of star is 06:41:37.2 +23:09:31
Stellar brightness G=16.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 154 degrees from the moon. Moon is 5% illuminated.
TNO apparent brightness V=22.3

[RECON map]
TNO is 28.7 AU from the Sun and 27.7 AU from the Earth.
The TNO is moving 24.9 km/sec on the sky relative to the star, or, 4.5 arcsec/hr.
The 1-sigma error in the time of the event is 240 seconds.
The 1-sigma cross-track error in the shadow position is 2901 km.
The sky-plane scale is 20070.2 km/arcsec.

The TNO has an absolute magnitude Hv=7.8
Diameter=160.7 km assuming a 5% albedo -- 6.6 sec chord
Diameter=65.6 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 14WE510, (2027/12/30 06:09UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:47:01.8 +27:57:23  1.1 15.43 166
Alhena         06:39:19.7 +16:22:23  1.9  6.81 153
PPM 096308     06:40:46.3 +22:00:13  6.0  1.18 154
PPM 096281     06:39:34.6 +23:34:42  7.7  0.69 154
PPM 096365     06:42:38.5 +23:08:49  9.1  0.16 154
14WE510        06:41:55.7 +23:09:13 16.0       155
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 3.7 sigma about the mid-time.
The median site spacing is 37.6 km RECON observability=1.0 and success probability=14.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 06:09:55 -59.2 Dark Down 58.9 152.5 Up 05:54:55 - 06:24:55 4335
Kamloops 06:10:33 -54.8 Dark Down 54.3 129.5 Up 05:55:33 - 06:25:33 4172
Kelowna 06:10:32 -55.8 Dark Down 55.3 129.8 Up 05:55:32 - 06:25:32 4088
Peachland 06:10:32 -55.7 Dark Down 55.2 129.3 Up 05:55:32 - 06:25:32 4078
Summerland 06:10:32 -55.9 Dark Down 55.4 129.2 Up 05:55:32 - 06:25:32 4063
Penticton 06:10:32 -56.0 Dark Down 55.5 129.3 Up 05:55:32 - 06:25:32 4056
Oliver 06:10:32 -56.2 Dark Down 55.7 128.9 Up 05:55:32 - 06:25:32 4020
Anarchist Mountain Observatory 06:10:31 -56.4 Dark Down 55.9 129.0 Up 05:55:31 - 06:25:31 4002
Victoria 06:10:43 -54.6 Dark Down 54.0 123.2 Up 05:55:43 - 06:25:43 3963
Okanogan 06:10:33 -56.7 Dark Down 56.2 127.9 Up 05:55:33 - 06:25:33 3937
Brewster 06:10:34 -56.8 Dark Down 56.2 127.3 Up 05:55:34 - 06:25:34 3909
Manson/Chelan 06:10:34 -56.7 Dark Down 56.2 126.6 Up 05:55:34 - 06:25:34 3888
Wenatchee 06:10:36 -56.9 Dark Down 56.4 125.8 Up 05:55:36 - 06:25:36 3840
Ellensburg 06:10:36 -57.0 Dark Down 56.5 125.0 Up 05:55:36 - 06:25:36 3798
Yakima 06:10:37 -57.3 Dark Down 56.7 124.5 Up 05:55:37 - 06:25:37 3756
Toppenish/White Swan 06:10:37 -57.5 Dark Down 56.9 124.4 Up 05:55:37 - 06:25:37 3733
PNWRO 06:10:33 -58.5 Dark Down 58.0 125.9 Up 05:55:33 - 06:25:33 3692
The Dalles 06:10:39 -57.5 Dark Down 56.9 122.4 Up 05:55:39 - 06:25:39 3654
Maupin 06:10:39 -57.8 Dark Down 57.2 122.0 Up 05:55:39 - 06:25:39 3610
Sisters 06:10:42 -58.0 Dark Down 57.3 120.2 Up 05:55:42 - 06:25:42 3520
Bend 06:10:41 -58.2 Dark Down 57.6 120.2 Up 05:55:41 - 06:25:41 3494
Oregon Observatory 06:10:42 -58.3 Dark Down 57.6 119.8 Up 05:55:42 - 06:25:42 3476
Chiloquin 06:10:44 -58.7 Dark Down 58.0 117.5 Up 05:55:44 - 06:25:44 3338
Klamath Falls 06:10:44 -58.9 Dark Down 58.2 117.1 Up 05:55:44 - 06:25:44 3302
Cedarville 06:10:39 -60.2 Dark Down 59.6 118.0 Up 05:55:39 - 06:25:39 3223
Fall River/Burney 06:10:43 -59.7 Dark Down 59.0 115.8 Up 05:55:43 - 06:25:43 3175
Dunrhomin 06:09:53 -69.6 Dark Down 69.1 140.5 Up 05:54:53 - 06:24:53 3120
CU-SBO 06:09:54 -69.7 Dark Down 69.3 139.9 Up 05:54:54 - 06:24:54 3092
Greenville 06:10:43 -60.4 Dark Down 59.7 115.0 Up 05:55:43 - 06:25:43 3077
Gimple 06:10:42 -60.4 Dark Down 59.7 115.0 Up 05:55:42 - 06:25:42 3076
Quincy 06:10:43 -60.5 Dark Down 59.8 114.6 Up 05:55:43 - 06:25:43 3055
Portola 06:10:42 -60.9 Dark Down 60.1 115.0 Up 05:55:42 - 06:25:42 3040
Reno 06:10:40 -61.4 Dark Down 60.7 115.4 Up 05:55:40 - 06:25:40 3010
Carson City 06:10:41 -61.6 Dark Down 60.9 114.8 Up 05:55:41 - 06:25:41 2971
Yerington 06:10:38 -62.1 Dark Down 61.4 115.3 Up 05:55:38 - 06:25:38 2949
Gardnerville 06:10:40 -61.7 Dark Down 61.0 114.5 Up 05:55:40 - 06:25:40 2945
Hawthorne 06:10:37 -62.7 Dark Down 62.0 115.1 Up 05:55:37 - 06:25:37 2898
Lee Vining 06:10:39 -62.6 Dark Down 61.9 113.6 Up 05:55:39 - 06:25:39 2837
Bishop 06:10:37 -63.4 Dark Down 62.6 113.4 Up 05:55:37 - 06:25:37 2771
Beatty 06:10:32 -64.7 Dark Down 64.0 114.6 Up 05:55:32 - 06:25:32 2720
Patrick 06:10:23 -67.4 Dark Down 66.7 115.5 Up 05:55:23 - 06:25:23 2559
Laughlin/Bullhead City 06:10:25 -67.0 Dark Down 66.3 114.0 Up 05:55:25 - 06:25:25 2531
Lake Havasu City 06:10:24 -67.5 Dark Down 66.7 112.9 Up 05:55:24 - 06:25:24 2458
Wildwood 06:10:39 -64.4 Dark Down 63.6 107.1 Up 05:55:39 - 06:25:39 2415
George/Scottsdale 06:10:16 -69.7 Dark Down 68.9 114.5 Up 05:55:16 - 06:25:16 2378
Idyllwild 06:10:32 -66.0 Dark Down 65.2 108.4 Up 05:55:32 - 06:25:32 2373
Calipatria 06:10:29 -67.1 Dark Down 66.3 108.5 Up 05:55:29 - 06:25:29 2306
Yuma 06:10:26 -68.0 Dark Down 67.1 108.6 Up 05:55:26 - 06:25:26 2260

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 14WE510, (2027/12/30 06:09UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 15.43 166
Alhena         06:37:42.8 +16:23:56  1.9  6.81 153
PPM 096308     06:39:05.3 +22:01:51  6.0  1.18 154
PPM 096281     06:37:52.4 +23:36:17  7.7  0.69 154
PPM 096365     06:40:56.7 +23:10:31  9.1  0.16 154
14WE510        06:40:13.9 +23:10:53 16.0       154
Positions are for J2000

Event circumstances last updated at 2022/11/26 02:51:06 UT

Marc W. Buie, Southwest Research Institute

RECON