RECON: TNO occultation with 547893

Event between (547893) 10WN75 and star GA0860:01600496 with event index number of 2700329

Geocentric closest approach at 2029/02/16 05:43:38 UTC

J2000 position of star is 06:42:42.1 -02:05:15
Equinox of date position of star is 06:43:49.9 -02:06:39
Stellar brightness G=16.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 104 degrees from the moon. Moon is 7% illuminated.
TNO apparent brightness V=21.5

[RECON map]
TNO is 37.0 AU from the Sun and 36.4 AU from the Earth.
The TNO is moving 19.3 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 194 seconds.
The 1-sigma cross-track error in the shadow position is 3376 km.
The sky-plane scale is 26394.1 km/arcsec.

The TNO has an absolute magnitude Hv=5.7
Diameter=436.5 km assuming a 5% albedo -- 22.6 sec chord
Diameter=178.2 km assuming a 30% albedo -- 9.2 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 547893, (2029/02/16 05:44UT)
Object            RA         Dec     mag  sep  mel
Sirius         06:46:26.1 -16:45:21 -1.5 14.65 105
Saiph          05:49:08.3 -09:39:41  2.1 15.62  91
PPM 176439     06:49:47.7 -01:21:12  5.6  1.60 105
PPM 176376     06:42:51.4 -02:22:50  8.3  0.42 104
PPM 176393     06:44:28.6 -02:07:51  8.7  0.08 104
547893         06:44:10.2 -02:07:05 16.0       104
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 4.6 sigma about the mid-time.
The median site spacing is 10.0 km RECON observability=1.0 and success probability=11.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 05:45:07 -46.0 Dark Down 31.5 211.1 Up 05:30:07 - 06:00:07 2253
Dunrhomin 05:44:20 -55.6 Dark Down 41.1 216.7 Up 05:29:20 - 05:59:20 1825
CU-SBO 05:44:20 -55.8 Dark Down 41.4 216.7 Up 05:29:20 - 05:59:20 1809
Kelowna 05:45:35 -41.9 Dark Down 36.9 196.0 Up 05:30:35 - 06:00:35 1647
Kamloops 05:45:40 -41.0 Dark Down 36.3 194.8 Up 05:30:40 - 06:00:40 1647
Peachland 05:45:37 -41.8 Dark Down 37.1 195.7 Up 05:30:37 - 06:00:37 1630
Penticton 05:45:35 -42.1 Dark Down 37.2 196.0 Up 05:30:35 - 06:00:35 1629
Summerland 05:45:36 -42.0 Dark Down 37.2 195.8 Up 05:30:36 - 06:00:36 1627
Anarchist Mountain Observatory 05:45:33 -42.5 Dark Down 37.7 196.3 Up 05:30:33 - 06:00:33 1614
Oliver 05:45:35 -42.3 Dark Down 37.6 196.1 Up 05:30:35 - 06:00:35 1613
Tonasket 05:45:32 -42.6 Dark Down 38.0 196.3 Up 05:30:32 - 06:00:32 1596
Okanogan 05:45:32 -42.7 Dark Down 38.4 196.2 Up 05:30:32 - 06:00:32 1574
Brewster 05:45:32 -42.8 Dark Down 38.7 196.0 Up 05:30:32 - 06:00:32 1553
Manson/Chelan 05:45:32 -42.7 Dark Down 38.9 195.6 Up 05:30:32 - 06:00:32 1527
Wenatchee 05:45:31 -42.9 Dark Down 39.4 195.5 Up 05:30:31 - 06:00:31 1497
PNWRO 05:45:24 -44.5 Dark Down 40.5 197.6 Up 05:30:24 - 06:00:24 1491
Ellensburg 05:45:32 -43.0 Dark Down 39.9 195.3 Up 05:30:32 - 06:00:32 1467
Yakima 05:45:29 -43.3 Dark Down 40.3 195.3 Up 05:30:29 - 06:00:29 1446
Toppenish/White Swan 05:45:29 -43.5 Dark Down 40.4 195.6 Up 05:30:29 - 06:00:29 1443
Victoria 05:45:44 -40.6 Dark Down 38.8 191.4 Up 05:30:44 - 06:00:44 1418
Goldendale 05:45:28 -43.5 Dark Down 41.0 195.2 Up 05:30:28 - 06:00:28 1396
The Dalles 05:45:28 -43.4 Dark Down 41.3 194.7 Up 05:30:28 - 06:00:28 1368
Maupin 05:45:27 -43.7 Dark Down 41.7 195.0 Up 05:30:27 - 06:00:27 1351
Sisters 05:45:26 -43.9 Dark Down 42.7 194.5 Up 05:30:26 - 06:00:26 1283
Bend 05:45:25 -44.2 Dark Down 42.8 194.9 Up 05:30:25 - 06:00:25 1282
Oregon Observatory 05:45:25 -44.2 Dark Down 43.0 194.8 Up 05:30:25 - 06:00:25 1267
North Lake 05:45:21 -44.9 Dark Down 43.5 195.6 Up 05:30:21 - 06:00:21 1257
Lakeview 05:45:16 -45.8 Dark Down 44.5 196.6 Up 05:30:16 - 06:00:16 1225
Cedarville 05:45:13 -46.2 Dark Down 45.1 197.0 Up 05:30:13 - 06:00:13 1197
Chiloquin 05:45:22 -44.6 Dark Down 44.4 194.5 Up 05:30:22 - 06:00:22 1174
Klamath Falls 05:45:21 -44.8 Dark Down 44.7 194.7 Up 05:30:21 - 06:00:21 1159
George/Scottsdale 05:44:18 -55.7 Dark Down 49.5 211.9 Up 05:29:18 - 05:59:18 1154
Patrick 05:44:32 -53.5 Dark Down 48.9 208.2 Up 05:29:32 - 05:59:32 1154
Henderson 05:44:47 -52.4 Dark Down 48.7 206.3 Up 05:29:47 - 05:59:47 1149
Tonopah 05:44:52 -49.9 Dark Down 47.6 202.3 Up 05:29:52 - 05:59:52 1143
Indian Springs 05:44:47 -51.7 Dark Down 48.5 205.1 Up 05:29:47 - 05:59:47 1136
Kingman/Dolan Springs 05:44:31 -53.5 Dark Down 49.1 208.0 Up 05:29:31 - 05:59:31 1131
Fall River/Burney 05:45:16 -45.7 Dark Down 45.8 195.5 Up 05:30:16 - 06:00:16 1110
Susanville 05:45:12 -46.4 Dark Down 46.2 196.7 Up 05:30:12 - 06:00:12 1110
Laughlin/Bullhead City 05:44:33 -53.1 Dark Down 49.3 207.3 Up 05:29:33 - 05:59:33 1103
Yerington 05:45:02 -48.1 Dark Down 47.2 199.2 Up 05:30:02 - 06:00:02 1101
Reno 05:45:06 -47.4 Dark Down 46.9 198.1 Up 05:30:06 - 06:00:06 1101
Hawthorne 05:44:59 -48.7 Dark Down 47.5 200.1 Up 05:29:59 - 05:59:59 1100
Beatty 05:44:47 -50.8 Dark Down 48.5 203.4 Up 05:29:47 - 05:59:47 1097
Mohave Valley 05:44:33 -53.3 Dark Down 49.6 207.4 Up 05:29:33 - 05:59:33 1087
Portola 05:45:09 -46.9 Dark Down 46.8 197.1 Up 05:30:09 - 06:00:09 1084
Gimple 05:45:12 -46.4 Dark Down 46.5 196.5 Up 05:30:12 - 06:00:12 1084
Carson City 05:45:05 -47.6 Dark Down 47.2 198.3 Up 05:30:05 - 06:00:05 1081
Greenville 05:45:12 -46.4 Dark Down 46.6 196.4 Up 05:30:12 - 06:00:12 1080
Lake Havasu City 05:44:30 -53.6 Dark Down 49.8 208.0 Up 05:29:30 - 05:59:30 1075
Gardnerville 05:45:04 -47.7 Dark Down 47.4 198.4 Up 05:30:04 - 06:00:04 1069
Quincy 05:45:11 -46.5 Dark Down 46.7 196.4 Up 05:30:11 - 06:00:11 1068
Parker 05:44:28 -53.8 Dark Down 50.1 208.2 Up 05:29:28 - 05:59:28 1055
Bishop 05:44:55 -49.4 Dark Down 48.6 200.9 Up 05:29:55 - 05:59:55 1043
Lee Vining 05:44:58 -48.6 Dark Down 48.2 199.6 Up 05:29:58 - 05:59:58 1042
Yuma 05:44:25 -54.3 Dark Down 51.6 208.6 Up 05:29:25 - 05:59:25 948
Idyllwild 05:44:47 -52.3 Dark Down 51.4 205.0 Up 05:29:47 - 05:59:47 929
Calipatria 05:44:29 -53.4 Dark Down 51.5 207.0 Up 05:29:29 - 05:59:29 928
Wildwood 05:44:47 -50.7 Dark Down 51.7 202.0 Up 05:29:47 - 05:59:47 830

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 547893, (2029/02/16 05:44UT)
Object            RA         Dec     mag  sep  mel
Sirius         06:45:08.0 -16:43:25 -1.5 14.65 105
Saiph          05:47:45.4 -09:40:11  2.1 15.62  91
PPM 176439     06:48:19.0 -01:19:08  5.6  1.60 105
PPM 176376     06:41:23.4 -02:21:03  8.3  0.42 104
PPM 176393     06:43:00.4 -02:06:00  8.7  0.08 104
547893         06:42:42.1 -02:05:15 16.0       104
Positions are for J2000

Event circumstances last updated at 2022/06/04 23:23:09 UT

Marc W. Buie, Southwest Research Institute

RECON