RECON: TNO occultation with 183595

Event between (183595) 03TG58 and star GA1120:02445977 with event index number of 2725602

Geocentric closest approach at 2029/02/17 02:37:13 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 2025 seconds.
The 1-sigma cross-track error in the shadow position is 4593 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=12.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 02:38:51 -21.8 Dark Up 57.7 146.9 Up 02:23:51 - 02:53:51 1740
Kamloops 02:39:53 -13.0 AT Up 52.5 125.2 Up 02:24:53 - 02:54:53 1717
Kelowna 02:39:52 -13.6 AT Up 53.5 125.5 Up 02:24:52 - 02:54:52 1628
Peachland 02:39:53 -13.4 AT Up 53.4 125.0 Up 02:24:53 - 02:54:53 1621
Summerland 02:39:53 -13.4 AT Up 53.5 125.0 Up 02:24:53 - 02:54:53 1606
Penticton 02:39:53 -13.5 AT Up 53.6 125.0 Up 02:24:53 - 02:54:53 1598
Oliver 02:39:54 -13.5 AT Up 53.8 124.6 Up 02:24:54 - 02:54:54 1563
Victoria 02:40:11 -11.0 NT Up 52.1 119.3 Up 02:25:11 - 02:55:11 1546
Anarchist Mountain Observatory 02:39:54 -13.6 AT Up 54.0 124.7 Up 02:24:54 - 02:54:54 1545
Okanogan 02:39:56 -13.4 AT Up 54.3 123.7 Up 02:24:56 - 02:54:56 1484
Brewster 02:39:58 -13.3 AT Up 54.3 123.1 Up 02:24:58 - 02:54:58 1460
Manson/Chelan 02:39:59 -13.0 AT Up 54.2 122.4 Up 02:24:59 - 02:54:59 1443
Wenatchee 02:40:02 -12.9 AT Up 54.4 121.7 Up 02:25:02 - 02:55:02 1398
Ellensburg 02:40:04 -12.7 AT Up 54.5 120.9 Up 02:25:04 - 02:55:04 1360
Yakima 02:40:05 -12.7 AT Up 54.7 120.4 Up 02:25:05 - 02:55:05 1320
Toppenish/White Swan 02:40:05 -12.8 AT Up 54.9 120.3 Up 02:25:05 - 02:55:05 1296
PNWRO 02:39:59 -13.8 AT Up 55.9 121.7 Up 02:24:59 - 02:54:59 1242
The Dalles 02:40:10 -12.2 AT Up 54.8 118.5 Up 02:25:10 - 02:55:10 1228
Maupin 02:40:10 -12.2 AT Up 55.1 118.1 Up 02:25:10 - 02:55:10 1185
Sisters 02:40:15 -11.8 NT Up 55.2 116.4 Up 02:25:15 - 02:55:15 1103
Bend 02:40:14 -12.0 NT Up 55.4 116.4 Up 02:25:14 - 02:55:14 1076
Oregon Observatory 02:40:15 -11.9 NT Up 55.4 116.0 Up 02:25:15 - 02:55:15 1060
Chiloquin 02:40:20 -11.5 NT Up 55.7 113.8 Up 02:25:20 - 02:55:20 931
Klamath Falls 02:40:20 -11.5 NT Up 55.9 113.4 Up 02:25:20 - 02:55:20 895
Cedarville 02:40:15 -12.6 AT Up 57.3 114.2 Up 02:25:15 - 02:55:15 802
Fall River/Burney 02:40:21 -11.7 NT Up 56.6 112.2 Up 02:25:21 - 02:55:21 769
Greenville 02:40:21 -11.9 NT Up 57.3 111.4 Up 02:25:21 - 02:55:21 669
Gimple 02:40:21 -12.0 NT Up 57.4 111.5 Up 02:25:21 - 02:55:21 667
Quincy 02:40:22 -11.9 NT Up 57.4 111.1 Up 02:25:22 - 02:55:22 648
Portola 02:40:20 -12.3 AT Up 57.8 111.5 Up 02:25:20 - 02:55:20 628
Reno 02:40:17 -12.7 AT Up 58.3 111.8 Up 02:25:17 - 02:55:17 592
Carson City 02:40:18 -12.7 AT Up 58.5 111.2 Up 02:25:18 - 02:55:18 554
Dunrhomin 02:39:02 -23.7 Dark Up 67.2 133.8 Up 02:24:02 - 02:54:02 532
Gardnerville 02:40:18 -12.7 AT Up 58.6 110.9 Up 02:25:18 - 02:55:18 528
Yerington 02:40:15 -13.2 AT Up 59.0 111.6 Up 02:25:15 - 02:55:15 525
Nikitin 02:39:02 -23.7 Dark Up 67.4 133.4 Up 02:24:02 - 02:54:02 512
CU-SBO 02:39:03 -23.7 Dark Up 67.4 133.1 Up 02:24:03 - 02:54:03 506
Hawthorne 02:40:13 -13.5 AT Up 59.5 111.5 Up 02:25:13 - 02:55:13 470
Lee Vining 02:40:17 -13.1 AT Up 59.4 110.1 Up 02:25:17 - 02:55:17 417
Bishop 02:40:14 -13.6 AT Up 60.1 109.9 Up 02:25:14 - 02:55:14 344
Beatty 02:40:07 -14.9 AT Up 61.5 110.9 Up 02:25:07 - 02:55:07 274
Patrick 02:39:54 -17.1 AT Up 64.2 111.4 Up 02:24:54 - 02:54:54 83
Laughlin/Bullhead City 02:39:58 -16.5 AT Up 63.7 110.2 Up 02:24:58 - 02:54:58 64
Wildwood 02:40:21 -13.2 AT Up 60.9 104.2 Up 02:25:21 - 02:55:21 -2
Lake Havasu City 02:39:58 -16.7 AT Up 64.1 109.2 Up 02:24:58 - 02:54:58 -11
Idyllwild 02:40:12 -14.7 AT Up 62.5 105.3 Up 02:25:12 - 02:55:12 -65
George/Scottsdale 02:39:45 -18.6 Dark Up 66.3 110.4 Up 02:24:45 - 02:54:45 -121
Calipatria 02:40:06 -15.6 AT Up 63.6 105.3 Up 02:25:06 - 02:55:06 -145
Yuma 02:40:02 -16.3 AT Up 64.4 105.3 Up 02:25:02 - 02:55:02 -202

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 02:03:33 UT

Marc W. Buie, Southwest Research Institute

RECON