RECON: TNO occultation with 14LU28

Event between 14LU28 and star GA0780:07256573 with event index number of 2506905

Geocentric closest approach at 2023/07/08 08:25:21 UTC

J2000 position of star is 17:40:54.2 -11:38:40
Equinox of date position of star is 17:42:12.3 -11:39:18
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 89 degrees from the moon. Moon is 69% illuminated.
Apparent brightness V=22.5

[RECON map]
Object is 37.4 AU from the Sun and 36.4 AU from the Earth.
Apparent velocity is 23.2 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 347 seconds.
The 1-sigma cross-track error in the shadow position is 5217 km.
The sky-plane scale is 26425.4 km/arcsec.

The object has an absolute magnitude Hv=6.8
Diameter=257.0 km assuming a 5% albedo -- 11.1 sec chord
Diameter=104.9 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 14LU28, (2023/07/08 08:25UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:51.2 -26:28:56  0.9 22.40 103
35Eta Oph      17:11:43.7 -15:45:09  2.6  8.46  96
PPM 233365     17:39:27.9 -10:56:18  5.7  0.98  90
PPM 233417     17:41:12.6 -11:28:38  8.5  0.30  89
PPM 233439     17:42:13.4 -11:32:42  9.6  0.11  89
14LU28         17:42:13.0 -11:39:18 16.7        89
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 2.6 sigma about the mid-time.
The median site spacing is 21.3 km RECON observability=1.0 and success probability=7.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 08:23:22 -16.7 AT Up 23.6 208.3 Low 08:08:22 - 08:38:22 -2678
Kelowna 08:23:19 -17.5 AT Up 24.0 209.3 Low 08:08:19 - 08:38:19 -2743
Peachland 08:23:20 -17.6 AT Up 24.2 209.1 Low 08:08:20 - 08:38:20 -2744
Victoria 08:23:28 -19.0 Dark Up 26.4 205.6 Low 08:08:28 - 08:38:28 -2755
Summerland 08:23:20 -17.8 AT Up 24.3 209.2 Low 08:08:20 - 08:38:20 -2755
Penticton 08:23:19 -17.8 AT Up 24.4 209.3 Low 08:08:19 - 08:38:19 -2761
Oliver 08:23:19 -18.2 Dark Up 24.7 209.4 Low 08:08:19 - 08:38:19 -2783
Anarchist Mountain Observatory 08:23:18 -18.4 Dark Up 24.8 209.6 Low 08:08:18 - 08:38:18 -2796
Okanogan 08:23:18 -19.0 Dark Up 25.4 209.5 Low 08:08:18 - 08:38:18 -2833
Brewster 08:23:18 -19.3 Dark Up 25.7 209.4 Low 08:08:18 - 08:38:18 -2847
Sleaford 08:22:51 -13.7 AT Up 17.3 221.9 Really Low 08:07:51 - 08:37:51 -2849
Manson/Chelan 08:23:19 -19.5 Dark Up 26.0 209.1 Low 08:08:19 - 08:38:19 -2853
Wenatchee 08:23:19 -20.0 Dark Up 26.5 209.0 Low 08:08:19 - 08:38:19 -2880
Ellensburg 08:23:19 -20.4 Dark Up 26.9 208.9 Low 08:08:19 - 08:38:19 -2903
Yakima 08:23:18 -20.8 Dark Up 27.3 209.0 Low 08:08:18 - 08:38:18 -2929
Toppenish/White Swan 08:23:18 -21.0 Dark Up 27.4 209.2 Low 08:08:18 - 08:38:18 -2946
The Dalles 08:23:19 -21.8 Dark Up 28.3 208.6 Low 08:08:19 - 08:38:19 -2983
PNWRO 08:23:13 -21.3 Dark Up 27.2 210.8 Low 08:08:13 - 08:38:13 -2999
Maupin 08:23:19 -22.3 Dark Up 28.7 208.8 Low 08:08:19 - 08:38:19 -3013
Sisters 08:23:19 -23.2 Dark Up 29.6 208.5 Low 08:08:19 - 08:38:19 -3063
Bend 08:23:18 -23.4 Dark Up 29.7 208.8 Low 08:08:18 - 08:38:18 -3084
Oregon Observatory 08:23:19 -23.6 Dark Up 29.9 208.8 Low 08:08:19 - 08:38:19 -3093
Chiloquin 08:23:19 -24.9 Dark Up 31.2 208.7 Up 08:08:19 - 08:38:19 -3177
Klamath Falls 08:23:19 -25.2 Dark Up 31.5 208.9 Up 08:08:19 - 08:38:19 -3203
Cedarville 08:23:13 -25.9 Dark Up 31.5 210.8 Up 08:08:13 - 08:38:13 -3286
Fall River/Burney 08:23:17 -26.4 Dark Up 32.4 209.6 Up 08:08:17 - 08:38:17 -3296
Greenville 08:23:14 -27.3 Dark Up 33.0 210.4 Up 08:08:14 - 08:38:14 -3372
Gimple 08:23:13 -27.3 Dark Up 33.0 210.5 Up 08:08:13 - 08:38:13 -3374
Quincy 08:23:14 -27.5 Dark Up 33.2 210.5 Up 08:08:14 - 08:38:14 -3387
Portola 08:23:12 -27.6 Dark Up 33.1 211.0 Up 08:08:12 - 08:38:12 -3406
Reno 08:23:10 -27.8 Dark Up 33.1 211.8 Up 08:08:10 - 08:38:10 -3440
Carson City 08:23:10 -28.2 Dark Up 33.4 211.9 Up 08:08:10 - 08:38:10 -3468
Gardnerville 08:23:10 -28.4 Dark Up 33.6 212.1 Up 08:08:10 - 08:38:10 -3487
Yerington 08:23:08 -28.3 Dark Up 33.3 212.7 Up 08:08:08 - 08:38:08 -3496
Hawthorne 08:23:05 -28.7 Dark Up 33.4 213.4 Up 08:08:05 - 08:38:05 -3543
Lee Vining 08:23:07 -29.3 Dark Up 34.1 213.1 Up 08:08:07 - 08:38:07 -3576
Bishop 08:23:04 -29.9 Dark Up 34.3 214.1 Up 08:08:04 - 08:38:04 -3639
Dunrhomin 08:22:28 -24.8 Dark Up 25.6 225.7 Low 08:07:28 - 08:37:28 -3705
Beatty 08:22:58 -30.2 Dark Up 34.0 215.9 Up 08:07:58 - 08:37:58 -3712
Nikitin 08:22:28 -24.9 Dark Up 25.7 225.8 Low 08:07:28 - 08:37:28 -3719
CU-SBO 08:22:28 -25.0 Dark Up 25.8 225.7 Low 08:07:28 - 08:37:28 -3722
Patrick 08:22:48 -31.2 Dark Up 33.7 219.4 Up 08:07:48 - 08:37:48 -3898
Wildwood 08:23:03 -33.1 Dark Up 37.1 215.2 Up 08:08:03 - 08:38:03 -3899
Laughlin/Bullhead City 08:22:50 -31.6 Dark Up 34.3 218.8 Up 08:07:50 - 08:37:50 -3903
Lake Havasu City 08:22:48 -32.2 Dark Up 34.7 219.4 Up 08:07:48 - 08:37:48 -3964
Idyllwild 08:22:56 -33.3 Dark Up 36.5 217.3 Up 08:07:56 - 08:37:56 -3971
Calipatria 08:22:51 -33.7 Dark Up 36.4 218.8 Up 08:07:51 - 08:37:51 -4051
George/Scottsdale 08:22:40 -32.5 Dark Up 33.9 222.1 Up 08:07:40 - 08:37:40 -4088
Yuma 08:22:48 -34.0 Dark Up 36.2 219.9 Up 08:07:48 - 08:37:48 -4109

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 14LU28, (2023/07/08 08:25UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 22.40 103
35Eta Oph      17:10:22.7 -15:43:29  2.6  8.46  96
PPM 233365     17:38:09.5 -10:55:35  5.7  0.98  90
PPM 233417     17:39:53.9 -11:27:58  8.5  0.30  89
PPM 233439     17:40:54.7 -11:32:04  9.6  0.11  89
14LU28         17:40:54.2 -11:38:40 16.7        89
Positions are for J2000

Event circumstances last updated at 2023/04/19 02:40:37 UT

Marc W. Buie, Southwest Research Institute

RECON