RECON: TNO occultation with 10RD188

Event between 10RD188 and star GA0780:00143773 with event index number of 2102334

Geocentric closest approach at 2024/10/31 07:03:00 UTC

J2000 position of star is 01:47:57.5 -11:04:54
Equinox of date position of star is 01:49:02.5 -10:58:22
Stellar brightness G=13.4, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 157 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=21.7

[RECON map]
TNO is 38.6 AU from the Sun and 37.8 AU from the Earth.
The TNO is moving 24.4 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 75 seconds.
The 1-sigma cross-track error in the shadow position is 1748 km.
The sky-plane scale is 27383.3 km/arcsec.

The TNO has an absolute magnitude Hv=5.8
Diameter=416.9 km assuming a 5% albedo -- 17.2 sec chord
Diameter=170.2 km assuming a 30% albedo -- 7.0 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 10RD188, (2024/10/31 07:01UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:59:01.0 -29:29:24  1.2 43.68 125
68Omi Cet      02:20:36.2 -02:51:57  2.0 11.23 161
53Chi Cet      01:50:48.4 -10:33:52  4.7  0.56 158
PPM 210682     01:50:36.6 -10:34:53  7.2  0.52 158
PPM 210649     01:48:57.8 -10:51:42  8.8  0.11 157
10RD188        01:49:10.9 -10:57:31 13.4       157
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 18.2 km RECON observability=1.0 and success probability=12.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 07:02:23 -52.6 Dark Down 28.2 178.1 Low 06:55:38 - 07:09:09 -1907
Kelowna 07:02:21 -53.5 Dark Down 29.1 179.1 Low 06:55:36 - 07:09:07 -1960
Peachland 07:02:22 -53.6 Dark Down 29.2 178.8 Low 06:55:36 - 07:09:07 -1962
Summerland 07:02:22 -53.8 Dark Down 29.3 178.9 Low 06:55:36 - 07:09:07 -1972
Penticton 07:02:22 -53.8 Dark Down 29.4 179.0 Low 06:55:36 - 07:09:07 -1977
Victoria 07:02:33 -54.0 Dark Down 30.3 174.7 Up 06:55:48 - 07:09:19 -1983
Oliver 07:02:21 -54.2 Dark Down 29.7 179.0 Low 06:55:36 - 07:09:07 -1996
Anarchist Mountain Observatory 07:02:21 -54.4 Dark Down 29.9 179.2 Low 06:55:36 - 07:09:07 -2007
Tonasket 07:02:21 -54.7 Dark Down 30.2 179.1 Up 06:55:36 - 07:09:07 -2023
Sleaford 07:01:44 -52.1 Dark Down 25.9 193.8 Low 06:54:59 - 07:08:30 -2030
Okanogan 07:02:22 -55.0 Dark Down 30.5 179.0 Up 06:55:36 - 07:09:07 -2040
Brewster 07:02:23 -55.2 Dark Down 30.8 178.7 Up 06:55:37 - 07:09:08 -2053
Manson/Chelan 07:02:24 -55.3 Dark Down 31.0 178.3 Up 06:55:38 - 07:09:09 -2059
Wenatchee 07:02:25 -55.7 Dark Down 31.5 178.1 Up 06:55:39 - 07:09:10 -2084
Ellensburg 07:02:26 -56.1 Dark Down 31.9 177.9 Up 06:55:40 - 07:09:11 -2105
Yakima 07:02:26 -56.4 Dark Down 32.3 177.8 Up 06:55:40 - 07:09:11 -2128
Toppenish/White Swan 07:02:25 -56.7 Dark Down 32.5 178.0 Up 06:55:40 - 07:09:11 -2143
Goldendale 07:02:27 -57.1 Dark Down 33.1 177.5 Up 06:55:42 - 07:09:13 -2169
The Dalles 07:02:29 -57.2 Dark Down 33.3 177.1 Up 06:55:43 - 07:09:14 -2178
PNWRO 07:02:21 -57.4 Dark Down 32.9 179.7 Up 06:55:36 - 07:09:07 -2185
Maupin 07:02:28 -57.6 Dark Down 33.7 177.2 Up 06:55:43 - 07:09:14 -2205
Sisters 07:02:30 -58.3 Dark Down 34.6 176.6 Up 06:55:45 - 07:09:16 -2251
Bend 07:02:30 -58.6 Dark Down 34.8 176.9 Up 06:55:44 - 07:09:15 -2269
Oregon Observatory 07:02:30 -58.8 Dark Down 35.0 176.7 Up 06:55:45 - 07:09:16 -2278
North Lake 07:02:29 -59.5 Dark Down 35.6 177.4 Up 06:55:43 - 07:09:14 -2326
Chiloquin 07:02:32 -59.9 Dark Down 36.3 176.2 Up 06:55:47 - 07:09:18 -2355
Klamath Falls 07:02:32 -60.2 Dark Down 36.6 176.3 Up 06:55:47 - 07:09:18 -2379
Lakeview 07:02:27 -60.6 Dark Down 36.7 178.0 Up 06:55:42 - 07:09:13 -2401
Cedarville 07:02:27 -61.3 Dark Down 37.4 178.2 Up 06:55:42 - 07:09:13 -2447
Fall River/Burney 07:02:32 -61.4 Dark Down 37.8 176.7 Up 06:55:46 - 07:09:17 -2462
Susanville 07:02:30 -62.2 Dark Down 38.5 177.6 Up 06:55:44 - 07:09:15 -2515
Greenville 07:02:31 -62.3 Dark Down 38.7 177.2 Up 06:55:45 - 07:09:16 -2529
Gimple 07:02:31 -62.4 Dark Down 38.7 177.3 Up 06:55:45 - 07:09:16 -2531
Quincy 07:02:31 -62.5 Dark Down 38.9 177.2 Up 06:55:45 - 07:09:16 -2543
Portola 07:02:30 -62.8 Dark Down 39.1 177.8 Up 06:55:44 - 07:09:15 -2558
Reno 07:02:27 -63.2 Dark Down 39.4 178.6 Up 06:55:42 - 07:09:13 -2587
Carson City 07:02:28 -63.6 Dark Down 39.7 178.6 Up 06:55:42 - 07:09:13 -2612
Gardnerville 07:02:27 -63.8 Dark Down 40.0 178.7 Up 06:55:42 - 07:09:13 -2630
Yerington 07:02:25 -63.9 Dark Down 39.9 179.4 Up 06:55:40 - 07:09:11 -2635
Hawthorne 07:02:24 -64.5 Dark Down 40.4 180.1 Up 06:55:38 - 07:09:09 -2676
Lee Vining 07:02:26 -64.9 Dark Down 41.0 179.4 Up 06:55:40 - 07:09:11 -2708
Tonopah 07:02:19 -65.3 Dark Down 40.8 181.9 Up 06:55:34 - 07:09:05 -2732
Bishop 07:02:24 -65.7 Dark Down 41.6 180.4 Up 06:55:38 - 07:09:09 -2764
Dunrhomin 07:01:44 -63.8 Dark Down 37.2 196.5 Up 06:54:58 - 07:08:29 -2789
Beatty 07:02:18 -66.5 Dark Down 42.0 182.5 Up 06:55:33 - 07:09:04 -2824
Indian Springs 07:02:14 -67.1 Dark Down 42.3 183.9 Up 06:55:29 - 07:09:00 -2866
Henderson 07:02:12 -67.7 Dark Down 42.8 184.9 Up 06:55:27 - 07:08:58 -2919
Patrick 07:02:08 -68.5 Dark Down 43.3 186.4 Up 06:55:23 - 07:08:54 -2985
Laughlin/Bullhead City 07:02:11 -68.7 Dark Down 43.6 185.5 Up 06:55:26 - 07:08:57 -2992
Kingman/Dolan Springs 07:02:09 -68.7 Dark Down 43.5 186.2 Up 06:55:24 - 07:08:55 -2999
Wildwood 07:02:26 -68.6 Dark Down 44.8 180.1 Up 06:55:41 - 07:09:12 -3005
Mohave Valley 07:02:11 -68.9 Dark Down 43.9 185.5 Up 06:55:26 - 07:08:57 -3013
Lake Havasu City 07:02:10 -69.4 Dark Down 44.2 185.9 Up 06:55:25 - 07:08:56 -3048
Idyllwild 07:02:19 -69.5 Dark Down 45.1 182.7 Up 06:55:34 - 07:09:05 -3064
Parker 07:02:10 -69.7 Dark Down 44.6 186.0 Up 06:55:25 - 07:08:56 -3076
Calipatria 07:02:15 -70.4 Dark Down 45.7 184.4 Up 06:55:30 - 07:09:01 -3134
George/Scottsdale 07:02:02 -70.5 Dark Down 44.7 189.3 Up 06:55:16 - 07:08:47 -3154
Yuma 07:02:13 -71.0 Dark Down 46.1 185.7 Up 06:55:27 - 07:08:58 -3184

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 10RD188, (2024/10/31 07:01UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 43.68 125
68Omi Cet      02:19:20.8 -02:58:45  2.0 11.23 161
53Chi Cet      01:49:34.9 -10:41:13  4.7  0.56 158
PPM 210682     01:49:23.1 -10:42:15  7.2  0.52 158
PPM 210649     01:47:44.4 -10:59:05  8.8  0.11 157
10RD188        01:47:57.5 -11:04:54 13.4       157
Positions are for J2000

Event circumstances last updated at 2021/12/25 23:55:48 UT

Marc W. Buie, Southwest Research Institute

RECON