RECON: TNO occultation with 183595

Event between (183595) 03TG58 and star GA1120:02326303 with event index number of 2701141

Geocentric closest approach at 2029/02/17 02:37:14 UTC

J2000 position of star is 06:38:34.2 +23:03:10
Equinox of date position of star is 06:40:03.1 +23:01:46
Stellar brightness G=14.3, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 90 degrees from the moon. Moon is 12% illuminated.
Apparent brightness V=22.9

[RECON map]
Object is 41.4 AU from the Sun and 40.8 AU from the Earth.
Apparent velocity is 15.1 km/sec on the sky relative to the star, or, 1.8 arcsec/hr.
The 1-sigma error in the time of the event is 2026 seconds.
The 1-sigma cross-track error in the shadow position is 4544 km.
The sky-plane scale is 29574.2 km/arcsec.

The object has an absolute magnitude Hv=6.6
Diameter=291.1 km assuming a 5% albedo -- 19.3 sec chord
Diameter=118.8 km assuming a 30% albedo -- 7.9 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 183595, (2029/02/17 02:37UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:47:06.0 +27:57:12  1.1 15.84 103
Alhena         06:39:23.6 +16:22:19  1.9  6.66  91
PPM 096308     06:40:50.4 +22:00:09  6.0  1.03  90
PPM 096248     06:38:28.3 +23:04:17  6.8  0.43  89
PPM 096299     06:40:35.7 +23:02:22  9.4  0.06  90
183595         06:40:20.1 +23:01:30 14.3        90
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 0.4 sigma about the mid-time.
The median site spacing is 57.1 km RECON observability=0.2 and success probability=12.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 02:38:52 -21.8 Dark Up 57.7 146.9 Up 02:23:52 - 02:53:52 1801
Kamloops 02:39:55 -13.1 AT Up 52.5 125.3 Up 02:24:55 - 02:54:55 1778
Kelowna 02:39:53 -13.6 AT Up 53.5 125.5 Up 02:24:53 - 02:54:53 1690
Peachland 02:39:54 -13.4 AT Up 53.4 125.0 Up 02:24:54 - 02:54:54 1682
Summerland 02:39:54 -13.4 AT Up 53.5 125.0 Up 02:24:54 - 02:54:54 1667
Penticton 02:39:54 -13.5 AT Up 53.6 125.0 Up 02:24:54 - 02:54:54 1659
Oliver 02:39:55 -13.5 AT Up 53.8 124.6 Up 02:24:55 - 02:54:55 1625
Victoria 02:40:12 -11.0 NT Up 52.1 119.3 Up 02:25:12 - 02:55:12 1607
Anarchist Mountain Observatory 02:39:55 -13.6 AT Up 54.0 124.7 Up 02:24:55 - 02:54:55 1606
Okanogan 02:39:57 -13.4 AT Up 54.3 123.7 Up 02:24:57 - 02:54:57 1545
Brewster 02:39:59 -13.3 AT Up 54.3 123.1 Up 02:24:59 - 02:54:59 1521
Manson/Chelan 02:40:01 -13.0 AT Up 54.2 122.4 Up 02:25:01 - 02:55:01 1505
Wenatchee 02:40:03 -12.9 AT Up 54.4 121.7 Up 02:25:03 - 02:55:03 1460
Ellensburg 02:40:05 -12.7 AT Up 54.5 120.9 Up 02:25:05 - 02:55:05 1422
Yakima 02:40:06 -12.7 AT Up 54.7 120.4 Up 02:25:06 - 02:55:06 1381
Toppenish/White Swan 02:40:06 -12.8 AT Up 54.9 120.3 Up 02:25:06 - 02:55:06 1358
PNWRO 02:40:00 -13.8 AT Up 56.0 121.7 Up 02:25:00 - 02:55:00 1303
The Dalles 02:40:11 -12.2 AT Up 54.8 118.5 Up 02:25:11 - 02:55:11 1290
Maupin 02:40:11 -12.3 AT Up 55.1 118.1 Up 02:25:11 - 02:55:11 1247
Sisters 02:40:16 -11.8 NT Up 55.2 116.4 Up 02:25:16 - 02:55:16 1164
Bend 02:40:15 -12.0 AT Up 55.4 116.4 Up 02:25:15 - 02:55:15 1137
Oregon Observatory 02:40:16 -11.9 NT Up 55.4 116.0 Up 02:25:16 - 02:55:16 1121
Chiloquin 02:40:21 -11.5 NT Up 55.7 113.8 Up 02:25:21 - 02:55:21 993
Klamath Falls 02:40:22 -11.5 NT Up 55.9 113.4 Up 02:25:22 - 02:55:22 957
Cedarville 02:40:16 -12.6 AT Up 57.3 114.3 Up 02:25:16 - 02:55:16 864
Fall River/Burney 02:40:22 -11.7 NT Up 56.6 112.2 Up 02:25:22 - 02:55:22 830
Greenville 02:40:22 -11.9 NT Up 57.3 111.4 Up 02:25:22 - 02:55:22 730
Gimple 02:40:22 -12.0 NT Up 57.4 111.5 Up 02:25:22 - 02:55:22 729
Quincy 02:40:23 -11.9 NT Up 57.4 111.1 Up 02:25:23 - 02:55:23 709
Portola 02:40:21 -12.3 AT Up 57.8 111.5 Up 02:25:21 - 02:55:21 690
Reno 02:40:18 -12.7 AT Up 58.3 111.8 Up 02:25:18 - 02:55:18 653
Carson City 02:40:19 -12.7 AT Up 58.5 111.2 Up 02:25:19 - 02:55:19 615
Dunrhomin 02:39:03 -23.7 Dark Up 67.2 133.8 Up 02:24:03 - 02:54:03 593
Gardnerville 02:40:19 -12.7 AT Up 58.6 110.9 Up 02:25:19 - 02:55:19 589
Yerington 02:40:16 -13.2 AT Up 59.0 111.6 Up 02:25:16 - 02:55:16 587
Nikitin 02:39:03 -23.7 Dark Up 67.4 133.4 Up 02:24:03 - 02:54:03 574
CU-SBO 02:39:04 -23.7 Dark Up 67.4 133.2 Up 02:24:04 - 02:54:04 567
Hawthorne 02:40:14 -13.5 AT Up 59.5 111.5 Up 02:25:14 - 02:55:14 531
Lee Vining 02:40:18 -13.1 AT Up 59.4 110.1 Up 02:25:18 - 02:55:18 478
Bishop 02:40:15 -13.6 AT Up 60.1 109.9 Up 02:25:15 - 02:55:15 405
Beatty 02:40:08 -14.9 AT Up 61.5 110.9 Up 02:25:08 - 02:55:08 336
Patrick 02:39:55 -17.1 AT Up 64.2 111.5 Up 02:24:55 - 02:54:55 144
Laughlin/Bullhead City 02:39:59 -16.5 AT Up 63.7 110.2 Up 02:24:59 - 02:54:59 125
Wildwood 02:40:22 -13.2 AT Up 60.9 104.2 Up 02:25:22 - 02:55:22 59
Lake Havasu City 02:39:59 -16.7 AT Up 64.1 109.2 Up 02:24:59 - 02:54:59 50
Idyllwild 02:40:13 -14.7 AT Up 62.5 105.3 Up 02:25:13 - 02:55:13 -4
George/Scottsdale 02:39:46 -18.6 Dark Up 66.3 110.4 Up 02:24:46 - 02:54:46 -59
Calipatria 02:40:07 -15.6 AT Up 63.6 105.3 Up 02:25:07 - 02:55:07 -84
Yuma 02:40:03 -16.3 AT Up 64.4 105.3 Up 02:25:03 - 02:55:03 -141

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 183595, (2029/02/17 02:37UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 15.84 103
Alhena         06:37:42.8 +16:23:56  1.9  6.66  91
PPM 096308     06:39:05.3 +22:01:51  6.0  1.03  90
PPM 096248     06:36:42.3 +23:05:52  6.8  0.43  89
PPM 096299     06:38:49.8 +23:04:02  9.4  0.06  90
183595         06:38:34.2 +23:03:10 14.3        90
Positions are for J2000

Event circumstances last updated at 2024/06/10 02:03:40 UT

Marc W. Buie, Southwest Research Institute

RECON