RECON: TNO occultation with 547616

Event between (547616) 10TR195 and star GA0980:00288212 with event index number of 2136567

Geocentric closest approach at 2024/09/01 09:43:42 UTC

J2000 position of star is 03:21:09.8 +09:19:13
Equinox of date position of star is 03:22:20.7 +09:23:51
Stellar brightness G=14.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 91 degrees from the moon. Moon is 3% illuminated.
TNO apparent brightness V=22.7

[RECON map]
TNO is 29.7 AU from the Sun and 29.4 AU from the Earth.
The TNO is moving 7.1 km/sec on the sky relative to the star, or, 1.2 arcsec/hr.
The 1-sigma error in the time of the event is 563 seconds.
The 1-sigma cross-track error in the shadow position is 4981 km.
The sky-plane scale is 21300.8 km/arcsec.

The TNO has an absolute magnitude Hv=7.8
Diameter=166.0 km assuming a 5% albedo -- 23.5 sec chord
Diameter=67.8 km assuming a 30% albedo -- 9.6 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 547616, (2024/09/01 09:44UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:20.3 +16:33:25  0.8 19.57  72
Menkar         03:03:34.3 +04:11:06  2.5  7.02  97
1Omi Tau       03:26:08.7 +09:06:51  3.6  0.95  90
PPM 146488     03:22:37.6 +09:44:50  8.0  0.34  91
PPM 146497     03:23:09.6 +09:19:07  8.8  0.19  91
PPM 146493     03:22:53.9 +09:26:55 10.7  0.11  91
547616         03:22:29.9 +09:24:27 14.4        91
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 1.6 sigma about the mid-time.
The median site spacing is 5.0 km RECON observability=1.0 and success probability=6.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
CPSLO 09:39:55 -41.0 Dark Down 41.6 111.3 Up 09:24:55 - 09:54:55 129
Klamath Falls 09:38:15 -35.6 Dark Down 37.7 115.2 Up 09:23:15 - 09:53:15 111
Chiloquin 09:38:10 -35.3 Dark Down 37.5 115.4 Up 09:23:10 - 09:53:10 109
Fall River/Burney 09:38:32 -36.5 Dark Down 38.6 114.8 Up 09:23:32 - 09:53:32 109
Quincy 09:38:47 -37.2 Dark Down 39.4 114.4 Up 09:23:47 - 09:53:47 99
Greenville 09:38:44 -37.1 Dark Down 39.3 114.6 Up 09:23:44 - 09:53:44 96
Gimple 09:38:44 -37.0 Dark Down 39.3 114.7 Up 09:23:44 - 09:53:44 92
Susanville 09:38:39 -36.7 Dark Down 39.4 115.0 Up 09:23:39 - 09:53:39 75
Portola 09:38:48 -37.2 Dark Down 39.8 114.8 Up 09:23:48 - 09:53:48 73
La Pine/Gilchrist 09:37:53 -34.2 Dark Down 37.2 116.4 Up 09:22:53 - 09:52:53 67
Oregon Observatory 09:37:51 -34.0 Dark Down 37.2 116.6 Up 09:22:51 - 09:52:51 60
Sisters 09:37:45 -33.7 Dark Down 36.9 116.7 Up 09:22:45 - 09:52:45 58
Bend 09:37:48 -33.9 Dark Down 37.2 116.8 Up 09:22:48 - 09:52:48 49
Victoria 09:36:48 -30.6 Dark Down 33.7 117.4 Up 09:21:48 - 09:51:48 47
North Lake 09:37:59 -34.4 Dark Down 37.8 116.7 Up 09:22:59 - 09:52:59 42
Gardnerville 09:38:59 -37.6 Dark Down 40.7 114.8 Up 09:23:59 - 09:53:59 40
Carson City 09:38:56 -37.4 Dark Down 40.5 114.9 Up 09:23:56 - 09:53:56 40
Reno 09:38:51 -37.1 Dark Down 40.3 115.2 Up 09:23:51 - 09:53:51 37
Redmond 09:37:45 -33.6 Dark Down 37.2 117.1 Up 09:22:45 - 09:52:45 37
Paisley 09:38:06 -34.8 Dark Down 38.3 116.7 Up 09:23:06 - 09:53:06 32
Cedarville 09:38:22 -35.6 Dark Down 39.1 116.2 Up 09:23:22 - 09:53:22 30
Lakeview 09:38:13 -35.1 Dark Down 38.7 116.5 Up 09:23:13 - 09:53:13 30
Maupin 09:37:31 -32.8 Dark Down 36.8 117.7 Up 09:22:31 - 09:52:31 12
Lee Vining 09:39:13 -38.1 Dark Down 41.6 114.7 Up 09:24:13 - 09:54:13 12
The Dalles 09:37:26 -32.5 Dark Down 36.5 117.9 Up 09:22:26 - 09:52:26 8
Yerington 09:38:58 -37.3 Dark Down 41.1 115.4 Up 09:23:58 - 09:53:58 3
Wildwood 09:40:09 -41.0 Dark Down 43.7 112.1 Up 09:25:09 - 09:55:09 2
Goldendale 09:37:22 -32.2 Dark Down 36.6 118.3 Up 09:22:22 - 09:52:22 -16
Hawthorne 09:39:03 -37.5 Dark Down 41.6 115.5 Up 09:24:03 - 09:54:03 -25
Bishop 09:39:20 -38.3 Dark Down 42.4 114.9 Up 09:24:20 - 09:54:20 -29
Yakima 09:37:11 -31.4 Dark Down 36.4 119.0 Up 09:22:11 - 09:52:11 -48
Toppenish/White Swan 09:37:14 -31.6 Dark Down 36.6 119.1 Up 09:22:14 - 09:52:14 -52
Ellensburg 09:37:05 -31.1 Dark Down 36.2 119.3 Up 09:22:05 - 09:52:05 -58
Wenatchee 09:36:59 -30.6 Dark Down 36.1 119.8 Up 09:21:59 - 09:51:59 -80
Manson/Chelan 09:36:52 -30.2 Dark Down 35.9 120.2 Up 09:21:52 - 09:51:52 -100
Tonopah 09:39:07 -37.2 Dark Down 42.9 116.5 Up 09:24:07 - 09:54:07 -110
Pasco 09:37:13 -31.2 Dark Down 37.4 120.3 Up 09:22:13 - 09:52:13 -118
Idyllwild 09:40:10 -40.3 Dark Down 45.2 113.4 Up 09:25:10 - 09:55:10 -124
PNWRO 09:37:16 -31.4 Dark Down 37.7 120.3 Up 09:22:16 - 09:52:16 -125
Brewster 09:36:49 -29.9 Dark Down 36.0 120.7 Up 09:21:49 - 09:51:49 -125
Beatty 09:39:23 -37.9 Dark Down 43.7 116.0 Up 09:24:23 - 09:54:23 -132
Okanogan 09:36:45 -29.6 Dark Down 36.0 121.0 Up 09:21:45 - 09:51:45 -142
Tonasket 09:36:40 -29.2 Dark Down 35.9 121.4 Up 09:21:40 - 09:51:40 -158
Oliver 09:36:33 -28.9 Dark Down 35.5 121.5 Up 09:21:33 - 09:51:33 -164
Peachland 09:36:26 -28.4 Dark Down 35.1 121.6 Up 09:21:26 - 09:51:26 -169
Anarchist Mountain Observatory 09:36:35 -29.0 Dark Down 35.7 121.6 Up 09:21:35 - 09:51:35 -169
Summerland 09:36:28 -28.5 Dark Down 35.3 121.6 Up 09:21:28 - 09:51:28 -170
Penticton 09:36:29 -28.6 Dark Down 35.3 121.7 Up 09:21:29 - 09:51:29 -174
Kelowna 09:36:24 -28.2 Dark Down 35.2 122.0 Up 09:21:24 - 09:51:24 -187
Indian Springs 09:39:26 -37.7 Dark Down 44.7 116.7 Up 09:24:26 - 09:54:26 -202
Clarence Fulton 09:36:18 -27.9 Dark Down 35.1 122.3 Up 09:21:18 - 09:51:18 -206
Calipatria 09:40:17 -40.2 Dark Down 46.4 113.9 Up 09:25:17 - 09:55:17 -207
Henderson 09:39:32 -37.7 Dark Down 45.4 116.9 Up 09:24:32 - 09:54:32 -248
Yuma 09:40:21 -40.0 Dark Down 47.3 114.3 Up 09:25:21 - 09:55:21 -271
Blythe 09:40:07 -39.3 Dark Down 46.9 115.2 Up 09:25:07 - 09:55:07 -272
Laughlin/Bullhead City 09:39:44 -38.2 Dark Down 46.2 116.6 Up 09:24:44 - 09:54:44 -274
Mohave Valley 09:39:48 -38.4 Dark Down 46.3 116.4 Up 09:24:48 - 09:54:48 -274
Lake Havasu City 09:39:53 -38.5 Dark Down 46.7 116.2 Up 09:24:53 - 09:54:53 -291
Parker 09:39:59 -38.8 Dark Down 46.9 115.9 Up 09:24:59 - 09:54:59 -293
Kingman/Dolan Springs 09:39:42 -37.9 Dark Down 46.5 117.1 Up 09:24:42 - 09:54:42 -309
Patrick 09:39:38 -37.6 Dark Down 46.5 117.5 Up 09:24:38 - 09:54:38 -323
George/Scottsdale 09:39:58 -37.7 Dark Down 48.9 117.9 Up 09:24:58 - 09:54:58 -468
Dunrhomin 09:38:05 -29.6 Dark Down 49.3 131.1 Up 09:23:05 - 09:53:05 -935

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 547616, (2024/09/01 09:44UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 19.57  72
Menkar         03:02:16.8 +04:05:21  2.5  7.02  97
1Omi Tau       03:24:48.7 +09:01:42  3.6  0.95  90
PPM 146488     03:21:17.4 +09:39:35  8.0  0.34  91
PPM 146497     03:21:49.6 +09:13:54  8.8  0.19  91
PPM 146493     03:21:33.8 +09:21:41 10.7  0.11  91
547616         03:21:09.8 +09:19:13 14.4        91
Positions are for J2000

Event circumstances last updated at 2021/10/29 23:10:50 UT

Marc W. Buie, Southwest Research Institute

RECON