RECON: TNO occultation with 556067

Event between (556067) 14JK80 and star GA0860:05240775 with event index number of 2488048

Geocentric closest approach at 2023/04/18 06:53:41 UTC

J2000 position of star is 17:02:12.0 -02:23:04
Equinox of date position of star is 17:03:20.2 -02:24:52
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 109 degrees from the moon. Moon is 5% illuminated.
TNO apparent brightness V=21.8

[RECON map]
TNO is 34.2 AU from the Sun and 33.5 AU from the Earth.
The TNO is moving 16.3 km/sec on the sky relative to the star, or, 2.4 arcsec/hr.
The 1-sigma error in the time of the event is 108 seconds.
The 1-sigma cross-track error in the shadow position is 1484 km.
The sky-plane scale is 24318.8 km/arcsec.

The TNO has an absolute magnitude Hv=6.4
Diameter=319.2 km assuming a 5% albedo -- 19.6 sec chord
Diameter=130.3 km assuming a 30% albedo -- 8.0 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 556067, (2023/04/18 06:54UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:50.4 -26:28:54  0.9 25.30 113
13Zet Oph      16:38:26.6 -10:36:45  2.6 10.28 114
PPM 179990     17:06:44.3 -00:55:20  5.4  1.71 108
PPM 200207     16:58:51.6 -03:03:05  7.8  1.30 110
PPM 179981     17:03:16.8 -02:20:07  9.7  0.09 109
556067         17:03:24.9 -02:25:00 16.8       108
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 5.0 sigma about the mid-time.
The median site spacing is 28.6 km RECON observability=0.3 and success probability=18.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 06:59:34 -27.7 Dark Down 14.5 112.2 Really Low 06:50:04 - 07:09:03 2062
Kelowna 06:59:36 -28.1 Dark Down 14.5 112.0 Really Low 06:50:06 - 07:09:05 2020
Peachland 06:59:36 -28.1 Dark Down 14.4 111.7 Really Low 06:50:06 - 07:09:05 2003
Summerland 06:59:35 -28.3 Dark Down 14.5 111.7 Really Low 06:50:06 - 07:09:05 1990
Penticton 06:59:35 -28.4 Dark Down 14.6 111.8 Really Low 06:50:06 - 07:09:05 1985
Oliver 06:59:37 -28.7 Dark Down 14.7 111.7 Really Low 06:50:07 - 07:09:06 1950
Anarchist Mountain Observatory 06:59:36 -28.9 Dark Down 14.9 111.8 Really Low 06:50:06 - 07:09:05 1936
Tonasket 06:59:37 -29.2 Dark Down 15.0 111.7 Really Low 06:50:07 - 07:09:06 1904
Okanogan 06:59:37 -29.5 Dark Down 15.0 111.5 Really Low 06:50:07 - 07:09:06 1867
Brewster 06:59:39 -29.7 Dark Down 15.0 111.3 Really Low 06:50:09 - 07:09:08 1835
Victoria 06:59:43 -28.5 Dark Down 12.6 108.5 Really Low 06:50:14 - 07:09:13 1812
Manson/Chelan 06:59:40 -29.8 Dark Down 14.8 110.9 Really Low 06:50:10 - 07:09:09 1807
Wenatchee 06:59:40 -30.3 Dark Down 14.9 110.7 Really Low 06:50:11 - 07:09:10 1755
Ellensburg 06:59:41 -30.6 Dark Down 14.9 110.4 Really Low 06:50:12 - 07:09:11 1708
Yakima 06:59:42 -31.0 Dark Down 15.0 110.3 Really Low 06:50:12 - 07:09:11 1667
Pasco 06:59:40 -31.6 Dark Down 16.1 111.3 Really Low 06:50:11 - 07:09:10 1661
Toppenish/White Swan 06:59:42 -31.2 Dark Down 15.2 110.4 Really Low 06:50:12 - 07:09:11 1647
PNWRO 06:59:39 -31.9 Dark Down 16.3 111.4 Really Low 06:50:09 - 07:09:08 1640
Goldendale 06:59:43 -31.7 Dark Down 15.1 109.9 Really Low 06:50:14 - 07:09:13 1582
The Dalles 06:59:44 -31.8 Dark Down 15.0 109.6 Really Low 06:50:15 - 07:09:14 1552
Maupin 06:59:45 -32.2 Dark Down 15.2 109.5 Really Low 06:50:15 - 07:09:14 1511
Dunrhomin 06:59:14 -39.0 Dark Down 27.8 120.5 Low 06:49:44 - 07:08:43 1421
Redmond 06:59:45 -33.1 Dark Down 15.4 109.2 Really Low 06:50:15 - 07:09:14 1415
Sisters 06:59:46 -32.9 Dark Down 15.1 108.9 Really Low 06:50:17 - 07:09:16 1409
Bend 06:59:46 -33.2 Dark Down 15.4 109.1 Really Low 06:50:17 - 07:09:16 1390
Oregon Observatory 06:59:47 -33.4 Dark Down 15.4 108.9 Really Low 06:50:17 - 07:09:16 1369
La Pine/Gilchrist 06:59:47 -33.5 Dark Down 15.4 108.8 Really Low 06:50:17 - 07:09:16 1346
North Lake 06:59:46 -34.1 Dark Down 16.0 109.2 Really Low 06:50:17 - 07:09:16 1313
Paisley 06:59:46 -34.7 Dark Down 16.4 109.3 Really Low 06:50:17 - 07:09:16 1263
Chiloquin 06:59:48 -34.5 Dark Down 15.5 108.3 Really Low 06:50:18 - 07:09:17 1223
Lakeview 06:59:46 -35.2 Dark Down 16.7 109.3 Really Low 06:50:17 - 07:09:16 1215
Klamath Falls 06:59:49 -34.8 Dark Down 15.7 108.2 Really Low 06:50:19 - 07:09:18 1189
Cedarville 06:59:46 -35.9 Dark Down 17.0 109.2 Really Low 06:50:17 - 07:09:16 1149
Fall River/Burney 06:59:49 -36.1 Dark Down 16.3 108.2 Really Low 06:50:19 - 07:09:18 1072
Susanville 06:59:48 -36.8 Dark Down 17.0 108.6 Really Low 06:50:19 - 07:09:18 1022
Gimple 06:59:49 -37.0 Dark Down 17.0 108.3 Really Low 06:50:19 - 07:09:18 988
Greenville 06:59:48 -37.0 Dark Down 16.9 108.3 Really Low 06:50:19 - 07:09:18 986
Quincy 06:59:49 -37.2 Dark Down 17.0 108.2 Really Low 06:50:19 - 07:09:18 965
Portola 06:59:48 -37.5 Dark Down 17.4 108.5 Really Low 06:50:19 - 07:09:18 962
Reno 06:59:47 -37.9 Dark Down 17.9 108.9 Really Low 06:50:17 - 07:09:16 949
Carson City 06:59:47 -38.2 Dark Down 18.1 108.8 Really Low 06:50:18 - 07:09:17 911
Yerington 06:59:46 -38.5 Dark Down 18.6 109.2 Really Low 06:50:17 - 07:09:16 906
Gardnerville 06:59:47 -38.5 Dark Down 18.2 108.8 Really Low 06:50:17 - 07:09:16 887
Hawthorne 06:59:45 -39.1 Dark Down 19.1 109.4 Really Low 06:50:15 - 07:09:14 869
Tonopah 06:59:43 -39.9 Dark Down 20.3 110.3 Low 06:50:13 - 07:09:12 854
Lee Vining 06:59:46 -39.5 Dark Down 19.0 108.9 Really Low 06:50:17 - 07:09:16 798
Bishop 06:59:45 -40.3 Dark Down 19.7 109.2 Really Low 06:50:16 - 07:09:15 752
Beatty 06:59:42 -41.1 Dark Down 21.1 110.2 Low 06:50:12 - 07:09:11 744
Indian Springs 06:59:40 -41.6 Dark Down 22.0 110.8 Low 06:50:10 - 07:09:09 738
Henderson 06:59:38 -42.3 Dark Down 22.7 111.1 Low 06:50:09 - 07:09:08 700
Patrick 06:59:35 -43.1 Dark Down 23.8 111.6 Low 06:50:05 - 07:09:04 666
Kingman/Dolan Springs 06:59:36 -43.3 Dark Down 23.7 111.4 Low 06:50:06 - 07:09:05 637
Laughlin/Bullhead City 06:59:37 -43.2 Dark Down 23.3 111.0 Low 06:50:08 - 07:09:07 620
Mohave Valley 06:59:37 -43.5 Dark Down 23.4 110.9 Low 06:50:08 - 07:09:07 592
Lake Havasu City 06:59:36 -43.9 Dark Down 23.7 110.9 Low 06:50:07 - 07:09:06 557
George/Scottsdale 06:59:30 -45.1 Dark Down 25.9 112.3 Low 06:50:01 - 07:09:00 547
Parker 06:59:36 -44.2 Dark Down 23.9 110.8 Low 06:50:07 - 07:09:06 521
CPSLO 06:59:50 -41.6 Dark Down 18.6 107.0 Really Low 06:50:20 - 07:09:19 479
Blythe 06:59:37 -44.7 Dark Down 23.9 110.4 Low 06:50:07 - 07:09:06 457
Idyllwild 06:59:41 -44.1 Dark Down 22.2 109.0 Low 06:50:12 - 07:09:11 411
Wildwood 06:59:46 -43.3 Dark Down 20.6 107.9 Low 06:50:16 - 07:09:15 400
Calipatria 06:59:39 -45.0 Dark Down 23.3 109.6 Low 06:50:09 - 07:09:08 379
Yuma 06:59:37 -45.6 Dark Down 24.1 110.0 Low 06:50:07 - 07:09:06 359

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 556067, (2023/04/18 06:54UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 25.30 113
13Zet Oph      16:37:09.6 -10:34:01  2.6 10.28 114
PPM 179990     17:05:32.2 -00:53:32  5.4  1.71 108
PPM 200207     16:57:38.3 -03:01:01  7.8  1.30 110
PPM 179981     17:02:04.0 -02:18:11  9.7  0.09 109
556067         17:02:12.0 -02:23:04 16.8       109
Positions are for J2000

Event circumstances last updated at 2021/10/17 01:11:30 UT

Marc W. Buie, Southwest Research Institute

RECON