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 07:02:39 UTC

J2000 position of star is 01:47:57.5 -11:04:54
Equinox of date position of star is 01:48:56.6 -10:58:57
Stellar brightness G=13.4, use SENSEUP=32
Star is 157 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=22.0

[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 268 seconds.
The 1-sigma cross-track error in the shadow position is 5889 km.
The sky-plane scale is 27383.2 km/arcsec.

The TNO has an absolute magnitude Hv=6.1
Diameter=361.4 km assuming a 5% albedo -- 14.8 sec chord
Diameter=147.5 km assuming a 30% albedo -- 6.0 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 10RD188, (2024/10/31 07:03UT)
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 3.4 sigma about the mid-time.
The median site spacing is 16.3 km RECON observability=1.0 and success probability=5.9%
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 07:02:01 -53.2 Dark Down 28.7 179.2 Low 06:47:01 - 07:17:01 1165
Kelowna 07:02:02 -53.5 Dark Down 29.0 179.0 Low 06:47:02 - 07:17:02 1147
Summerland 07:02:02 -53.7 Dark Down 29.3 178.8 Low 06:47:02 - 07:17:02 1136
Penticton 07:02:02 -53.8 Dark Down 29.4 178.9 Low 06:47:02 - 07:17:02 1131
Victoria 07:02:14 -53.9 Dark Down 30.2 174.6 Up 06:47:14 - 07:17:14 1124
Oliver 07:02:02 -54.2 Dark Down 29.7 178.9 Low 06:47:02 - 07:17:02 1112
Anarchist Mountain Observatory 07:02:02 -54.4 Dark Down 29.9 179.1 Low 06:47:02 - 07:17:02 1100
Tonasket 07:02:02 -54.6 Dark Down 30.2 179.0 Up 06:47:02 - 07:17:02 1084
Okanogan 07:02:03 -54.9 Dark Down 30.5 178.9 Up 06:47:03 - 07:17:03 1067
Brewster 07:02:03 -55.2 Dark Down 30.8 178.6 Up 06:47:03 - 07:17:03 1055
Manson/Chelan 07:02:04 -55.3 Dark Down 31.0 178.2 Up 06:47:04 - 07:17:04 1048
Entiat 07:02:05 -55.5 Dark Down 31.2 178.1 Up 06:47:05 - 07:17:05 1036
Wenatchee 07:02:05 -55.7 Dark Down 31.5 178.0 Up 06:47:05 - 07:17:05 1023
Ellensburg 07:02:06 -56.0 Dark Down 31.9 177.8 Up 06:47:06 - 07:17:06 1003
Yakima 07:02:06 -56.4 Dark Down 32.3 177.7 Up 06:47:06 - 07:17:06 979
Toppenish/White Swan 07:02:06 -56.7 Dark Down 32.5 177.9 Up 06:47:06 - 07:17:06 964
Pasco 07:02:02 -57.1 Dark Down 32.7 179.4 Up 06:47:02 - 07:17:02 940
Goldendale 07:02:08 -57.1 Dark Down 33.1 177.4 Up 06:47:08 - 07:17:08 938
The Dalles 07:02:09 -57.2 Dark Down 33.3 177.0 Up 06:47:09 - 07:17:09 929
PNWRO 07:02:02 -57.3 Dark Down 32.9 179.7 Up 06:47:02 - 07:17:02 922
Maupin 07:02:09 -57.6 Dark Down 33.7 177.1 Up 06:47:09 - 07:17:09 903
Sisters 07:02:11 -58.3 Dark Down 34.6 176.5 Up 06:47:11 - 07:17:11 856
Redmond 07:02:10 -58.4 Dark Down 34.6 177.0 Up 06:47:10 - 07:17:10 849
Bend 07:02:10 -58.6 Dark Down 34.8 176.8 Up 06:47:10 - 07:17:10 838
Oregon Observatory 07:02:11 -58.7 Dark Down 35.0 176.6 Up 06:47:11 - 07:17:11 829
La Pine/Gilchrist 07:02:11 -58.9 Dark Down 35.2 176.6 Up 06:47:11 - 07:17:11 817
North Lake 07:02:10 -59.5 Dark Down 35.6 177.3 Up 06:47:10 - 07:17:10 782
Paisley 07:02:09 -60.1 Dark Down 36.2 177.7 Up 06:47:09 - 07:17:09 741
Klamath Falls 07:02:13 -60.2 Dark Down 36.6 176.2 Up 06:47:13 - 07:17:13 729
Lakeview 07:02:08 -60.6 Dark Down 36.7 177.9 Up 06:47:08 - 07:17:08 706
Cedarville 07:02:08 -61.3 Dark Down 37.4 178.1 Up 06:47:08 - 07:17:08 660
Fall River/Burney 07:02:12 -61.4 Dark Down 37.8 176.6 Up 06:47:12 - 07:17:12 646
Susanville 07:02:10 -62.2 Dark Down 38.5 177.5 Up 06:47:10 - 07:17:10 593
Greenville 07:02:11 -62.3 Dark Down 38.7 177.1 Up 06:47:11 - 07:17:11 578
Gimple 07:02:11 -62.3 Dark Down 38.7 177.2 Up 06:47:11 - 07:17:11 577
Quincy 07:02:12 -62.5 Dark Down 38.9 177.1 Up 06:47:12 - 07:17:12 564
Portola 07:02:10 -62.8 Dark Down 39.1 177.7 Up 06:47:10 - 07:17:10 549
Reno 07:02:08 -63.2 Dark Down 39.4 178.5 Up 06:47:08 - 07:17:08 521
Carson City 07:02:08 -63.5 Dark Down 39.7 178.5 Up 06:47:08 - 07:17:08 496
Gardnerville 07:02:08 -63.8 Dark Down 40.0 178.6 Up 06:47:08 - 07:17:08 478
Yerington 07:02:06 -63.9 Dark Down 39.9 179.3 Up 06:47:06 - 07:17:06 472
Hawthorne 07:02:04 -64.5 Dark Down 40.4 180.0 Up 06:47:04 - 07:17:04 431
Lee Vining 07:02:07 -64.9 Dark Down 41.0 179.3 Up 06:47:07 - 07:17:07 399
Tonopah 07:02:00 -65.3 Dark Down 40.8 181.8 Up 06:47:00 - 07:17:00 376
Bishop 07:02:04 -65.6 Dark Down 41.6 180.3 Up 06:47:04 - 07:17:04 344
Niwot 07:01:19 -63.9 Dark Down 37.4 196.4 Up 06:46:19 - 07:16:19 313
SwRI 07:01:19 -64.0 Dark Down 37.5 196.3 Up 06:46:19 - 07:16:19 307
Beatty 07:01:59 -66.5 Dark Down 42.0 182.4 Up 06:46:59 - 07:16:59 283
Indian Springs 07:01:55 -67.1 Dark Down 42.3 183.8 Up 06:46:55 - 07:16:55 241
CPSLO 07:02:14 -66.8 Dark Down 43.6 177.3 Up 06:47:14 - 07:17:14 227
Henderson 07:01:53 -67.7 Dark Down 42.8 184.8 Up 06:46:53 - 07:16:53 189
Searchlight/Boulder City 07:01:53 -68.3 Dark Down 43.3 184.9 Up 06:46:53 - 07:16:53 145
Patrick 07:01:49 -68.5 Dark Down 43.3 186.3 Up 06:46:49 - 07:16:49 122
Laughlin/Bullhead City 07:01:52 -68.6 Dark Down 43.6 185.4 Up 06:46:52 - 07:16:52 116
Kingman/Dolan Springs 07:01:50 -68.7 Dark Down 43.5 186.1 Up 06:46:50 - 07:16:50 109
Wildwood 07:02:07 -68.6 Dark Down 44.8 180.0 Up 06:47:07 - 07:17:07 102
Mohave Valley 07:01:52 -68.9 Dark Down 43.9 185.4 Up 06:46:52 - 07:16:52 95
DCO 07:01:47 -68.9 Dark Down 43.5 187.3 Up 06:46:47 - 07:16:47 87
Lake Havasu City 07:01:51 -69.3 Dark Down 44.2 185.8 Up 06:46:51 - 07:16:51 59
Idyllwild 07:02:00 -69.5 Dark Down 45.1 182.6 Up 06:47:00 - 07:17:00 43
Parker 07:01:51 -69.7 Dark Down 44.6 185.9 Up 06:46:51 - 07:16:51 32
Blythe 07:01:52 -70.1 Dark Down 45.1 185.5 Up 06:46:52 - 07:16:52 -4
Calipatria 07:01:56 -70.4 Dark Down 45.7 184.3 Up 06:46:56 - 07:16:56 -26
George/Scottsdale 07:01:42 -70.5 Dark Down 44.8 189.2 Up 06:46:42 - 07:16:42 -46
Yuma 07:01:53 -71.0 Dark Down 46.1 185.6 Up 06:46:53 - 07:16:53 -77

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 07:03UT)
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     01:49:23.2 -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 2019/12/31 22:19:09 UT

Marc W. Buie, Southwest Research Institute

RECON