RECON: TNO occultation with 555915

Event between (555915) 14GX53 and star GA0780:05250648 with event index number of 2747400

Geocentric closest approach at 2029/04/22 07:52:36 UTC

J2000 position of star is 16:06:45.1 -11:51:26
Equinox of date position of star is 16:07:58.8 -11:54:55
Stellar brightness G=11.9, use SENSEUP=8 with the MallinCam and and exposure time of 125 milli-seconds with the QHY174 camera.
Star is 113 degrees from the moon. Moon is 56% illuminated.
TNO apparent brightness V=20.9

[RECON map]
TNO is 35.2 AU from the Sun and 34.3 AU from the Earth.
The TNO is moving 20.2 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 127 seconds.
The 1-sigma cross-track error in the shadow position is 1828 km.
The sky-plane scale is 24882.4 km/arcsec.

The TNO has an absolute magnitude Hv=5.4
Diameter=494.3 km assuming a 5% albedo -- 24.4 sec chord
Diameter=201.8 km assuming a 30% albedo -- 10.0 sec chord
Dynamical classification is 11:7EEEE
 
 
 
 
 
 

Star training set for 555915, (2029/04/22 07:53UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.6 -26:29:40  0.9 15.52 121
13Zet Oph      16:38:46.5 -10:37:27  2.6  7.57 120
11 Sco         16:09:14.3 -12:49:19  6.1  0.91 114
PPM 231209     16:08:13.0 -11:58:58  7.9  0.06 113
555915         16:08:22.5 -11:56:03 11.9       114
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 18.0 km RECON observability=1.0 and success probability=21.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 07:54:46 -24.6 Dark Up 24.1 160.4 Low 07:43:41 - 08:05:51 -486
Kamloops 07:55:29 -27.0 Dark Up 21.3 145.6 Low 07:44:24 - 08:06:34 -878
Kelowna 07:55:28 -27.8 Dark Up 22.3 146.3 Low 07:44:23 - 08:06:33 -910
Peachland 07:55:29 -27.9 Dark Up 22.3 146.0 Low 07:44:24 - 08:06:34 -924
Summerland 07:55:29 -28.1 Dark Up 22.5 146.0 Low 07:44:24 - 08:06:34 -931
Penticton 07:55:29 -28.1 Dark Up 22.6 146.1 Low 07:44:24 - 08:06:34 -933
Oliver 07:55:29 -28.5 Dark Up 22.9 146.1 Low 07:44:24 - 08:06:34 -956
Anarchist Mountain Observatory 07:55:29 -28.7 Dark Up 23.1 146.2 Low 07:44:24 - 08:06:34 -962
Tonasket 07:55:30 -29.0 Dark Up 23.3 146.1 Low 07:44:25 - 08:06:35 -985
Okanogan 07:55:30 -29.3 Dark Up 23.5 145.8 Low 07:44:25 - 08:06:35 -1011
Brewster 07:55:31 -29.6 Dark Up 23.7 145.6 Low 07:44:26 - 08:06:36 -1034
Manson/Chelan 07:55:32 -29.8 Dark Up 23.7 145.2 Low 07:44:27 - 08:06:37 -1056
Victoria 07:55:41 -29.0 Dark Up 21.9 142.2 Low 07:44:36 - 08:06:46 -1089
Wenatchee 07:55:34 -30.3 Dark Up 24.1 144.9 Low 07:44:29 - 08:06:39 -1093
Ellensburg 07:55:35 -30.7 Dark Up 24.3 144.6 Low 07:44:30 - 08:06:40 -1126
Yakima 07:55:36 -31.1 Dark Up 24.6 144.4 Low 07:44:31 - 08:06:41 -1155
PNWRO 07:55:32 -31.7 Dark Up 25.8 145.9 Low 07:44:27 - 08:06:37 -1156
Toppenish/White Swan 07:55:36 -31.3 Dark Up 24.9 144.6 Low 07:44:31 - 08:06:41 -1166
Goldendale 07:55:38 -31.8 Dark Up 25.2 144.0 Low 07:44:33 - 08:06:43 -1215
Dunrhomin 07:54:48 -35.9 Dark Up 35.4 158.8 Up 07:43:43 - 08:05:53 -1223
The Dalles 07:55:39 -32.0 Dark Up 25.2 143.6 Low 07:44:34 - 08:06:44 -1240
CU-SBO 07:54:50 -36.1 Dark Up 35.6 158.7 Up 07:43:45 - 08:05:55 -1243
Maupin 07:55:39 -32.5 Dark Up 25.6 143.6 Low 07:44:34 - 08:06:44 -1267
Sisters 07:55:42 -33.3 Dark Up 26.1 142.8 Low 07:44:37 - 08:06:47 -1343
Bend 07:55:41 -33.6 Dark Up 26.4 143.0 Low 07:44:36 - 08:06:46 -1354
Oregon Observatory 07:55:42 -33.7 Dark Up 26.5 142.8 Low 07:44:37 - 08:06:47 -1370
North Lake 07:55:41 -34.4 Dark Up 27.2 143.2 Low 07:44:36 - 08:06:46 -1403
Lakeview 07:55:40 -35.5 Dark Up 28.3 143.4 Low 07:44:35 - 08:06:45 -1468
Chiloquin 07:55:44 -35.1 Dark Up 27.3 142.0 Low 07:44:39 - 08:06:49 -1479
Klamath Falls 07:55:45 -35.4 Dark Up 27.6 142.0 Low 07:44:40 - 08:06:50 -1503
Cedarville 07:55:41 -36.1 Dark Up 28.9 143.3 Low 07:44:36 - 08:06:46 -1514
Fall River/Burney 07:55:45 -36.6 Dark Up 28.7 142.0 Low 07:44:40 - 08:06:50 -1583
Susanville 07:55:43 -37.2 Dark Up 29.6 142.5 Low 07:44:38 - 08:06:48 -1612
Gimple 07:55:44 -37.5 Dark Up 29.7 142.2 Low 07:44:39 - 08:06:49 -1640
Greenville 07:55:45 -37.5 Dark Up 29.7 142.1 Low 07:44:40 - 08:06:50 -1642
Portola 07:55:44 -37.8 Dark Up 30.1 142.5 Up 07:44:39 - 08:06:49 -1654
Quincy 07:55:45 -37.7 Dark Up 29.8 142.1 Low 07:44:40 - 08:06:50 -1657
Reno 07:55:42 -38.1 Dark Up 30.6 143.0 Up 07:44:37 - 08:06:47 -1658
Yerington 07:55:40 -38.7 Dark Up 31.4 143.5 Up 07:44:35 - 08:06:45 -1684
Carson City 07:55:42 -38.5 Dark Up 30.9 142.9 Up 07:44:37 - 08:06:47 -1685
Gardnerville 07:55:42 -38.7 Dark Up 31.2 142.9 Up 07:44:37 - 08:06:47 -1703
Tonopah 07:55:34 -39.6 Dark Up 33.0 145.1 Up 07:44:29 - 08:06:39 -1704
Hawthorne 07:55:38 -39.1 Dark Up 32.0 143.8 Up 07:44:33 - 08:06:43 -1706
Lee Vining 07:55:40 -39.7 Dark Up 32.2 143.1 Up 07:44:35 - 08:06:45 -1764
Indian Springs 07:55:30 -41.0 Dark Up 34.9 146.1 Up 07:44:25 - 08:06:35 -1781
Beatty 07:55:33 -40.7 Dark Up 34.2 145.1 Up 07:44:28 - 08:06:38 -1785
Bishop 07:55:39 -40.3 Dark Up 33.1 143.6 Up 07:44:34 - 08:06:44 -1792
Henderson 07:55:27 -41.5 Dark Up 35.7 146.7 Up 07:44:22 - 08:06:32 -1805
Patrick 07:55:24 -42.0 Dark Up 36.7 147.6 Up 07:44:19 - 08:06:29 -1825
Kingman/Dolan Springs 07:55:24 -42.2 Dark Up 36.8 147.3 Up 07:44:19 - 08:06:29 -1848
Laughlin/Bullhead City 07:55:26 -42.3 Dark Up 36.6 146.7 Up 07:44:21 - 08:06:31 -1865
Mohave Valley 07:55:27 -42.6 Dark Up 36.8 146.6 Up 07:44:22 - 08:06:32 -1887
George/Scottsdale 07:55:16 -43.4 Dark Up 39.0 149.1 Up 07:44:11 - 08:06:21 -1907
Lake Havasu City 07:55:25 -42.9 Dark Up 37.3 146.7 Up 07:44:20 - 08:06:30 -1913
Parker 07:55:25 -43.3 Dark Up 37.6 146.6 Up 07:44:20 - 08:06:30 -1941
Idyllwild 07:55:35 -43.9 Dark Up 36.8 143.9 Up 07:44:30 - 08:06:40 -2044
Calipatria 07:55:31 -44.4 Dark Up 37.8 144.9 Up 07:44:26 - 08:06:36 -2062
Wildwood 07:55:42 -43.6 Dark Up 35.6 142.1 Up 07:44:37 - 08:06:47 -2068
Yuma 07:55:27 -44.8 Dark Up 38.6 145.6 Up 07:44:22 - 08:06:32 -2073

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 555915, (2029/04/22 07:53UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 15.52 121
13Zet Oph      16:37:09.6 -10:34:01  2.6  7.57 120
11 Sco         16:07:36.3 -12:44:44  6.1  0.91 114
PPM 231209     16:06:35.5 -11:54:21  7.9  0.06 113
555915         16:06:45.1 -11:51:26 11.9       113
Positions are for J2000

Event circumstances last updated at 2022/02/27 02:03:45 UT

Marc W. Buie, Southwest Research Institute

RECON