RECON: TNO occultation with 13JP64

Event between 13JP64 and star GA0780:06407895 with event index number of 2059505

Geocentric closest approach at 2023/05/28 08:45:45 UTC

J2000 position of star is 17:25:04.0 -11:39:23
Equinox of date position of star is 17:26:22.0 -11:40:33
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 96 degrees from the moon. Moon is 57% illuminated.
Apparent brightness V=23.6

[RECON map]
Object is 33.3 AU from the Sun and 32.4 AU from the Earth.
Apparent velocity is 22.4 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 327 seconds.
The 1-sigma cross-track error in the shadow position is 1968 km.
The sky-plane scale is 23474.0 km/arcsec.

The object has an absolute magnitude Hv=8.4
Diameter=123.6 km assuming a 5% albedo -- 5.5 sec chord
Diameter=50.5 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 13JP64, (2023/05/28 08:46UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:50.8 -26:28:55  0.9 19.75  85
35Eta Oph      17:11:43.3 -15:45:08  2.6  5.41  93
53Nu Ser       17:22:08.7 -12:52:07  4.0  1.58  95
PPM 233017     17:25:21.2 -11:43:18  8.1  0.25  95
PPM 233031     17:26:03.9 -11:54:25  9.7  0.24  96
13JP64         17:26:22.3 -11:40:33 16.8        96
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 2.8 sigma about the mid-time.
The median site spacing is 20.1 km RECON observability=1.0 and success probability=5.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:45:58 -13.0 AT Down 25.7 190.8 Low 08:30:58 - 09:00:58 4313
Kamloops 08:46:41 -17.1 AT Up 27.6 175.2 Low 08:31:41 - 09:01:41 4088
Kelowna 08:46:38 -17.8 AT Up 28.4 176.2 Low 08:31:38 - 09:01:38 4056
Peachland 08:46:39 -17.9 AT Up 28.5 175.8 Low 08:31:39 - 09:01:39 4047
Summerland 08:46:38 -18.1 Dark Up 28.7 175.9 Low 08:31:38 - 09:01:38 4040
Penticton 08:46:37 -18.1 Dark Up 28.7 176.1 Low 08:31:37 - 09:01:37 4038
Oliver 08:46:37 -18.5 Dark Up 29.1 176.0 Low 08:31:37 - 09:01:37 4018
Anarchist Mountain Observatory 08:46:37 -18.6 Dark Up 29.3 176.3 Low 08:31:37 - 09:01:37 4012
Okanogan 08:46:37 -19.3 Dark Up 29.9 176.0 Low 08:31:37 - 09:01:37 3973
Brewster 08:46:38 -19.6 Dark Up 30.2 175.7 Up 08:31:38 - 09:01:38 3955
Manson/Chelan 08:46:40 -19.8 Dark Up 30.3 175.3 Up 08:31:40 - 09:01:40 3939
Victoria 08:46:49 -19.6 Dark Up 29.5 171.7 Low 08:31:49 - 09:01:49 3930
Wenatchee 08:46:40 -20.3 Dark Up 30.8 175.1 Up 08:31:40 - 09:01:40 3909
Ellensburg 08:46:41 -20.7 Dark Up 31.2 174.8 Up 08:31:41 - 09:01:41 3882
Yakima 08:46:40 -21.1 Dark Up 31.6 174.8 Up 08:31:40 - 09:01:40 3858
Toppenish/White Swan 08:46:40 -21.3 Dark Up 31.8 175.0 Up 08:31:40 - 09:01:40 3848
PNWRO 08:46:34 -21.5 Dark Up 32.3 176.7 Up 08:31:34 - 09:01:34 3847
The Dalles 08:46:42 -22.2 Dark Up 32.6 174.0 Up 08:31:42 - 09:01:42 3790
Maupin 08:46:42 -22.6 Dark Up 33.0 174.1 Up 08:31:42 - 09:01:42 3766
Sisters 08:46:44 -23.5 Dark Up 33.8 173.5 Up 08:31:44 - 09:01:44 3705
Bend 08:46:43 -23.7 Dark Up 34.1 173.8 Up 08:31:43 - 09:01:43 3694
Oregon Observatory 08:46:44 -23.9 Dark Up 34.2 173.6 Up 08:31:44 - 09:01:44 3681
Dunrhomin 08:45:43 -23.4 Dark Down 37.2 193.1 Up 08:30:43 - 09:00:43 3656
Nikitin 08:45:43 -23.6 Dark Down 37.3 193.1 Up 08:30:43 - 09:00:43 3643
CU-SBO 08:45:43 -23.6 Dark Down 37.4 193.0 Up 08:30:43 - 09:00:43 3638
Chiloquin 08:46:44 -25.3 Dark Up 35.5 173.0 Up 08:31:44 - 09:01:44 3590
Klamath Falls 08:46:44 -25.6 Dark Up 35.9 173.1 Up 08:31:44 - 09:01:44 3569
Cedarville 08:46:38 -26.0 Dark Up 36.7 174.9 Up 08:31:38 - 09:01:38 3547
Fall River/Burney 08:46:43 -26.7 Dark Up 37.1 173.4 Up 08:31:43 - 09:01:43 3496
Gimple 08:46:41 -27.5 Dark Up 38.0 174.0 Up 08:31:41 - 09:01:41 3442
Greenville 08:46:41 -27.5 Dark Up 38.0 173.9 Up 08:31:41 - 09:01:41 3441
Quincy 08:46:41 -27.7 Dark Up 38.2 173.9 Up 08:31:41 - 09:01:41 3427
Portola 08:46:39 -27.7 Dark Up 38.4 174.5 Up 08:31:39 - 09:01:39 3426
Reno 08:46:37 -27.9 Dark Up 38.7 175.2 Up 08:31:37 - 09:01:37 3417
Carson City 08:46:37 -28.2 Dark Up 39.0 175.2 Up 08:31:37 - 09:01:37 3393
Yerington 08:46:34 -28.3 Dark Up 39.3 176.0 Up 08:31:34 - 09:01:34 3389
Gardnerville 08:46:36 -28.5 Dark Up 39.3 175.3 Up 08:31:36 - 09:01:36 3376
Hawthorne 08:46:32 -28.7 Dark Up 39.8 176.7 Up 08:31:32 - 09:01:32 3364
Lee Vining 08:46:33 -29.3 Dark Up 40.3 176.0 Up 08:31:33 - 09:01:33 3317
Bishop 08:46:30 -29.7 Dark Up 40.9 176.9 Up 08:31:30 - 09:01:30 3284
Beatty 08:46:24 -29.8 Dark Up 41.4 179.0 Up 08:31:24 - 09:01:24 3275
Patrick 08:46:12 -30.5 Dark Up 42.9 182.8 Up 08:31:12 - 09:01:12 3208
Laughlin/Bullhead City 08:46:15 -31.0 Dark Up 43.2 181.8 Up 08:31:15 - 09:01:15 3179
Lake Havasu City 08:46:13 -31.5 Dark Up 43.8 182.2 Up 08:31:13 - 09:01:13 3132
George/Scottsdale 08:46:03 -31.5 Dark Down 44.5 185.5 Up 08:31:03 - 09:01:03 3108
Idyllwild 08:46:22 -32.9 Dark Up 44.6 179.0 Up 08:31:22 - 09:01:22 3039
Wildwood 08:46:30 -33.0 Dark Up 44.2 176.4 Up 08:31:30 - 09:01:30 3037
Calipatria 08:46:17 -33.1 Dark Up 45.2 180.6 Up 08:31:17 - 09:01:17 3009
Yuma 08:46:13 -33.3 Dark Up 45.6 181.8 Up 08:31:13 - 09:01:13 2989

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 13JP64, (2023/05/28 08:46UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 19.75  85
35Eta Oph      17:10:22.7 -15:43:29  2.6  5.41  93
53Nu Ser       17:20:49.7 -12:50:49  4.0  1.58  95
PPM 233017     17:24:02.8 -11:42:06  8.1  0.25  95
PPM 233031     17:24:45.4 -11:53:15  9.7  0.24  96
13JP64         17:25:04.0 -11:39:23 16.8        96
Positions are for J2000

Event circumstances last updated at 2023/04/19 02:36:00 UT

Marc W. Buie, Southwest Research Institute

RECON