RECON: TNO occultation with 10RD188

Event between 10RD188 and star GA0780:00143773 with event index number of 1407947

Geocentric closest approach at 2024/10/31 07:00:45 UTC

J2000 position of star is 01:47:57.5 -11:04:54
Equinox of date position of star is 01:48:57.3 -10:58:53
Stellar brightness G=13.4, use SENSEUP=32
Star is 157 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=25.9

[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 206 seconds.
The 1-sigma cross-track error in the shadow position is 4546 km.
The sky-plane scale is 27383.4 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=363.1 km assuming a 5% albedo -- 2.5 sec chord
Diameter=148.2 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 10RD188, (2024/10/31 07:01UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:59:00.9 -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 4.4 sigma about the mid-time.
The median site spacing is 15.3 km RECON observability=1.0 and success probability=7.1%
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 07:00:09 -53.1 Dark Down 28.7 178.7 Low 06:45:09 - 07:15:09 3265
Kelowna 07:00:09 -53.4 Dark Down 29.0 178.5 Low 06:45:09 - 07:15:09 3246
Peachland 07:00:10 -53.5 Dark Down 29.2 178.2 Low 06:45:10 - 07:15:10 3244
Summerland 07:00:10 -53.7 Dark Down 29.3 178.3 Low 06:45:10 - 07:15:10 3235
Penticton 07:00:10 -53.7 Dark Down 29.4 178.4 Low 06:45:10 - 07:15:10 3230
Victoria 07:00:22 -53.8 Dark Down 30.2 174.0 Up 06:45:22 - 07:15:22 3223
Oliver 07:00:09 -54.1 Dark Down 29.7 178.4 Low 06:45:09 - 07:15:09 3211
Anarchist Mountain Observatory 07:00:09 -54.3 Dark Down 29.9 178.6 Low 06:45:09 - 07:15:09 3200
Tonasket 07:00:10 -54.6 Dark Down 30.2 178.5 Up 06:45:10 - 07:15:10 3183
Okanogan 07:00:10 -54.8 Dark Down 30.5 178.3 Up 06:45:10 - 07:15:10 3167
Brewster 07:00:11 -55.1 Dark Down 30.8 178.1 Up 06:45:11 - 07:15:11 3154
Manson/Chelan 07:00:12 -55.2 Dark Down 31.0 177.7 Up 06:45:12 - 07:15:12 3148
Entiat 07:00:12 -55.4 Dark Down 31.2 177.6 Up 06:45:12 - 07:15:12 3136
Wenatchee 07:00:13 -55.6 Dark Down 31.5 177.5 Up 06:45:13 - 07:15:13 3123
Ellensburg 07:00:14 -55.9 Dark Down 31.9 177.2 Up 06:45:14 - 07:15:14 3102
Yakima 07:00:14 -56.3 Dark Down 32.3 177.2 Up 06:45:14 - 07:15:14 3079
Toppenish/White Swan 07:00:14 -56.6 Dark Down 32.5 177.4 Up 06:45:14 - 07:15:14 3064
Pasco 07:00:10 -57.0 Dark Down 32.7 178.8 Up 06:45:10 - 07:15:10 3040
Goldendale 07:00:15 -57.0 Dark Down 33.0 176.9 Up 06:45:15 - 07:15:15 3038
The Dalles 07:00:17 -57.1 Dark Down 33.3 176.4 Up 06:45:17 - 07:15:17 3029
PNWRO 07:00:10 -57.2 Dark Down 32.9 179.1 Up 06:45:10 - 07:15:10 3022
Maupin 07:00:17 -57.5 Dark Down 33.7 176.6 Up 06:45:17 - 07:15:17 3002
Sisters 07:00:19 -58.2 Dark Down 34.5 175.9 Up 06:45:19 - 07:15:19 2956
Redmond 07:00:18 -58.3 Dark Down 34.6 176.4 Up 06:45:18 - 07:15:18 2949
Bend 07:00:18 -58.5 Dark Down 34.8 176.2 Up 06:45:18 - 07:15:18 2938
Oregon Observatory 07:00:18 -58.6 Dark Down 35.0 176.1 Up 06:45:18 - 07:15:18 2929
La Pine/Gilchrist 07:00:19 -58.8 Dark Down 35.2 176.0 Up 06:45:19 - 07:15:19 2917
North Lake 07:00:17 -59.3 Dark Down 35.6 176.7 Up 06:45:17 - 07:15:17 2882
Paisley 07:00:16 -60.0 Dark Down 36.2 177.1 Up 06:45:16 - 07:15:16 2842
Klamath Falls 07:00:21 -60.0 Dark Down 36.6 175.6 Up 06:45:21 - 07:15:21 2829
Lakeview 07:00:16 -60.5 Dark Down 36.7 177.3 Up 06:45:16 - 07:15:16 2806
Cedarville 07:00:16 -61.1 Dark Down 37.4 177.5 Up 06:45:16 - 07:15:16 2761
Fall River/Burney 07:00:20 -61.2 Dark Down 37.8 176.0 Up 06:45:20 - 07:15:20 2746
Susanville 07:00:18 -62.0 Dark Down 38.5 176.9 Up 06:45:18 - 07:15:18 2693
Greenville 07:00:19 -62.2 Dark Down 38.7 176.5 Up 06:45:19 - 07:15:19 2679
Gimple 07:00:19 -62.2 Dark Down 38.7 176.6 Up 06:45:19 - 07:15:19 2677
Quincy 07:00:20 -62.4 Dark Down 38.9 176.5 Up 06:45:20 - 07:15:20 2665
Portola 07:00:18 -62.6 Dark Down 39.1 177.1 Up 06:45:18 - 07:15:18 2649
Reno 07:00:16 -63.1 Dark Down 39.3 177.9 Up 06:45:16 - 07:15:16 2621
Carson City 07:00:16 -63.4 Dark Down 39.7 177.9 Up 06:45:16 - 07:15:16 2596
Gardnerville 07:00:16 -63.6 Dark Down 40.0 178.0 Up 06:45:16 - 07:15:16 2578
Yerington 07:00:14 -63.8 Dark Down 39.9 178.7 Up 06:45:14 - 07:15:14 2573
Hawthorne 07:00:13 -64.4 Dark Down 40.4 179.4 Up 06:45:13 - 07:15:13 2532
Lee Vining 07:00:15 -64.7 Dark Down 40.9 178.7 Up 06:45:15 - 07:15:15 2500
Tonopah 07:00:08 -65.2 Dark Down 40.9 181.2 Up 06:45:08 - 07:15:08 2477
Bishop 07:00:12 -65.5 Dark Down 41.6 179.7 Up 06:45:12 - 07:15:12 2445
Niwot 06:59:27 -64.0 Dark Down 37.5 195.9 Up 06:44:27 - 07:14:27 2415
SwRI 06:59:27 -64.1 Dark Down 37.6 195.8 Up 06:44:27 - 07:14:27 2409
Beatty 07:00:07 -66.4 Dark Down 42.0 181.8 Up 06:45:07 - 07:15:07 2385
Indian Springs 07:00:03 -67.0 Dark Down 42.3 183.2 Up 06:45:03 - 07:15:03 2342
CPSLO 07:00:22 -66.6 Dark Down 43.6 176.6 Up 06:45:22 - 07:15:22 2328
Henderson 07:00:01 -67.6 Dark Down 42.8 184.2 Up 06:45:01 - 07:15:01 2291
Searchlight/Boulder City 07:00:01 -68.2 Dark Down 43.4 184.3 Up 06:45:01 - 07:15:01 2247
Patrick 06:59:57 -68.4 Dark Down 43.3 185.7 Up 06:44:57 - 07:14:57 2224
Laughlin/Bullhead City 07:00:00 -68.5 Dark Down 43.6 184.8 Up 06:45:00 - 07:15:00 2217
Kingman/Dolan Springs 06:59:58 -68.6 Dark Down 43.6 185.5 Up 06:44:58 - 07:14:58 2210
Wildwood 07:00:15 -68.4 Dark Down 44.8 179.4 Up 06:45:15 - 07:15:15 2203
Mohave Valley 07:00:00 -68.8 Dark Down 43.9 184.8 Up 06:45:00 - 07:15:00 2196
DCO 06:59:55 -68.9 Dark Down 43.6 186.7 Up 06:44:55 - 07:14:55 2188
Lake Havasu City 06:59:59 -69.3 Dark Down 44.3 185.2 Up 06:44:59 - 07:14:59 2161
Idyllwild 07:00:08 -69.4 Dark Down 45.2 182.0 Up 06:45:08 - 07:15:08 2145
Parker 06:59:59 -69.6 Dark Down 44.6 185.2 Up 06:44:59 - 07:14:59 2133
Blythe 07:00:01 -70.0 Dark Down 45.2 184.9 Up 06:45:01 - 07:15:01 2098
Calipatria 07:00:04 -70.3 Dark Down 45.7 183.6 Up 06:45:04 - 07:15:04 2075
George/Scottsdale 06:59:50 -70.4 Dark Down 44.8 188.6 Up 06:44:50 - 07:14:50 2056
Yuma 07:00:01 -70.9 Dark Down 46.1 184.9 Up 06:45:01 - 07:15:01 2025

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 -29:37:23  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 2020/03/25 01:30:49 UT

Marc W. Buie, Southwest Research Institute

RECON