RECON: TNO occultation with 03TK58

Event between 03TK58 and star GA1140:02460200 with event index number of 2005480

Geocentric closest approach at 2028/01/09 06:42:01 UTC

J2000 position of star is 06:42:21.4 +24:55:22
Equinox of date position of star is 06:43:50.0 +24:53:52
Stellar brightness G=15.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 30 degrees from the moon. Moon is 89% illuminated.
Apparent brightness V=23.4

[RECON map]
Object is 45.9 AU from the Sun and 44.9 AU from the Earth.
Apparent velocity is 25.7 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 1711 seconds.
The 1-sigma cross-track error in the shadow position is 5656 km.
The sky-plane scale is 32572.2 km/arcsec.

The object has an absolute magnitude Hv=6.8
Diameter=259.4 km assuming a 5% albedo -- 10.1 sec chord
Diameter=105.9 km assuming a 30% albedo -- 4.1 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 03TK58, (2028/01/09 06:42UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:47:01.9 +27:57:22  1.1 14.41  44
Alhena         06:39:19.8 +16:22:23  1.9  8.59  32
PPM 096264     06:39:10.3 +24:33:54  6.5  1.16  29
PPM 096322     06:41:14.5 +24:34:24  6.9  0.72  30
PPM 096406     06:44:08.4 +24:42:56  9.6  0.18  30
03TK58         06:44:04.6 +24:53:37 15.3        31
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 0.5 sigma about the mid-time.
The median site spacing is 38.7 km RECON observability=1.0 and success probability=3.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 06:42:05 -59.6 Dark Up 62.8 184.7 Up 06:27:05 - 06:57:05 12114
Kamloops 06:42:43 -57.0 Dark Up 62.7 155.9 Up 06:27:43 - 06:57:43 11934
Kelowna 06:42:40 -57.9 Dark Up 63.6 157.0 Up 06:27:40 - 06:57:40 11851
Peachland 06:42:42 -57.9 Dark Up 63.7 156.3 Up 06:27:42 - 06:57:42 11840
Summerland 06:42:42 -58.1 Dark Up 63.8 156.4 Up 06:27:42 - 06:57:42 11825
Penticton 06:42:42 -58.2 Dark Up 63.9 156.6 Up 06:27:42 - 06:57:42 11818
Oliver 06:42:41 -58.4 Dark Up 64.2 156.3 Up 06:27:41 - 06:57:41 11782
Anarchist Mountain Observatory 06:42:41 -58.7 Dark Up 64.4 156.5 Up 06:27:41 - 06:57:41 11765
Victoria 06:42:53 -57.3 Dark Up 63.6 148.2 Up 06:27:53 - 06:57:53 11721
Okanogan 06:42:42 -59.1 Dark Up 65.0 155.5 Up 06:27:42 - 06:57:42 11699
Brewster 06:42:43 -59.2 Dark Up 65.2 154.9 Up 06:27:43 - 06:57:43 11671
Manson/Chelan 06:42:44 -59.2 Dark Up 65.2 153.9 Up 06:27:44 - 06:57:44 11650
Wenatchee 06:42:44 -59.5 Dark Up 65.6 153.1 Up 06:27:44 - 06:57:44 11601
Ellensburg 06:42:45 -59.7 Dark Up 65.9 152.2 Up 06:27:45 - 06:57:45 11559
Yakima 06:42:45 -60.0 Dark Up 66.3 151.8 Up 06:27:45 - 06:57:45 11517
Toppenish/White Swan 06:42:46 -60.2 Dark Up 66.5 151.9 Up 06:27:46 - 06:57:46 11494
PNWRO 06:42:41 -61.2 Dark Up 67.3 154.7 Up 06:27:41 - 06:57:41 11455
The Dalles 06:42:48 -60.4 Dark Up 66.9 149.3 Up 06:27:48 - 06:57:48 11415
Maupin 06:42:48 -60.7 Dark Up 67.3 149.1 Up 06:27:48 - 06:57:48 11371
Sisters 06:42:49 -61.1 Dark Up 67.9 146.9 Up 06:27:49 - 06:57:49 11279
Bend 06:42:48 -61.4 Dark Up 68.2 147.1 Up 06:27:48 - 06:57:48 11254
Oregon Observatory 06:42:50 -61.4 Dark Up 68.3 146.6 Up 06:27:50 - 06:57:50 11236
Chiloquin 06:42:51 -62.1 Dark Up 69.2 143.7 Up 06:27:51 - 06:57:51 11098
Klamath Falls 06:42:51 -62.4 Dark Up 69.5 143.4 Up 06:27:51 - 06:57:51 11061
Cedarville 06:42:46 -63.7 Dark Up 70.8 146.0 Up 06:27:46 - 06:57:46 10985
Fall River/Burney 06:42:51 -63.3 Dark Up 70.6 142.3 Up 06:27:51 - 06:57:51 10935
Dunrhomin 06:41:56 -71.1 Dark Up 74.5 190.5 Up 06:26:56 - 06:56:56 10903
Nikitin 06:41:57 -71.3 Dark Up 74.6 190.5 Up 06:26:57 - 06:56:57 10883
CU-SBO 06:41:57 -71.3 Dark Up 74.7 190.3 Up 06:26:57 - 06:56:57 10876
Greenville 06:42:49 -64.1 Dark Up 71.5 141.7 Up 06:27:49 - 06:57:49 10837
Gimple 06:42:48 -64.2 Dark Up 71.6 141.9 Up 06:27:48 - 06:57:48 10837
Quincy 06:42:49 -64.3 Dark Up 71.7 141.4 Up 06:27:49 - 06:57:49 10815
Portola 06:42:47 -64.6 Dark Up 72.0 142.3 Up 06:27:47 - 06:57:47 10801
Reno 06:42:45 -65.2 Dark Up 72.5 143.4 Up 06:27:45 - 06:57:45 10772
Carson City 06:42:45 -65.4 Dark Up 72.8 142.8 Up 06:27:45 - 06:57:45 10733
Yerington 06:42:43 -65.9 Dark Up 73.3 144.1 Up 06:27:43 - 06:57:43 10712
Gardnerville 06:42:45 -65.6 Dark Up 73.0 142.4 Up 06:27:45 - 06:57:45 10707
Hawthorne 06:42:41 -66.5 Dark Up 73.9 144.6 Up 06:27:41 - 06:57:41 10662
Lee Vining 06:42:43 -66.6 Dark Up 74.1 142.1 Up 06:27:43 - 06:57:43 10601
Bishop 06:42:41 -67.4 Dark Up 74.9 142.8 Up 06:27:41 - 06:57:41 10536
Beatty 06:42:35 -68.7 Dark Up 76.1 146.8 Up 06:27:35 - 06:57:35 10486
Patrick 06:42:25 -71.4 Dark Up 78.5 154.2 Up 06:27:25 - 06:57:25 10330
Laughlin/Bullhead City 06:42:28 -71.1 Dark Up 78.4 150.7 Up 06:27:28 - 06:57:28 10302
Lake Havasu City 06:42:27 -71.7 Dark Up 79.1 150.1 Up 06:27:27 - 06:57:27 10229
Wildwood 06:42:43 -69.0 Dark Up 77.3 133.4 Up 06:27:43 - 06:57:43 10179
George/Scottsdale 06:42:18 -73.7 Dark Up 80.7 159.9 Up 06:27:18 - 06:57:18 10153
Idyllwild 06:42:35 -70.5 Dark Up 78.6 138.5 Up 06:27:35 - 06:57:35 10141
Calipatria 06:42:31 -71.7 Dark Up 79.7 140.9 Up 06:27:31 - 06:57:31 10076
Yuma 06:42:28 -72.6 Dark Up 80.5 143.2 Up 06:27:28 - 06:57:28 10030

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 03TK58, (2028/01/09 06:42UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 14.41  44
Alhena         06:37:42.8 +16:23:57  1.9  8.59  32
PPM 096264     06:37:27.2 +24:35:27  6.5  1.16  29
PPM 096322     06:39:31.5 +24:36:03  6.9  0.72  30
PPM 096406     06:42:25.3 +24:44:41  9.6  0.18  30
03TK58         06:42:21.4 +24:55:22 15.3        30
Positions are for J2000

Event circumstances last updated at 2024/01/16 22:22:31 UT

Marc W. Buie, Southwest Research Institute

RECON