RECON: TNO occultation with 10TN182

Event between 10TN182 and star GA1060:00237260 with event index number of 1158824

Geocentric closest approach at 2021/10/11 09:04:25 UTC

J2000 position of star is 02:23:56.9 +17:09:51
Equinox of date position of star is 02:25:06.9 +17:15:32
Stellar brightness G=16.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 134 degrees from the moon. Moon is 30% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 38.7 AU from the Sun and 37.7 AU from the Earth.
The TNO is moving 23.4 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 127 seconds.
The 1-sigma cross-track error in the shadow position is 2161 km.
The sky-plane scale is 27373.2 km/arcsec.

The TNO has an absolute magnitude Hv=6.9
Diameter=248.9 km assuming a 5% albedo -- 10.7 sec chord
Diameter=101.6 km assuming a 30% albedo -- 4.4 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 10TN182, (2021/10/11 09:04UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:10.4 +16:33:05  0.8 31.55 163
Hamal          02:08:24.4 +23:33:52  2.0  7.42 132
27 Ari         02:32:07.1 +17:47:57  6.2  1.75 136
PPM 118163     02:23:45.4 +16:58:06  7.0  0.44 134
PPM 118205     02:26:14.2 +16:57:46  9.4  0.40 134
PPM 118197     02:25:53.4 +17:08:53 11.3  0.21 134
10TN182        02:25:09.2 +17:15:43 16.0       134
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 23.6 km RECON observability=1.0 and success probability=17.0%
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 09:03:45 -43.8 Dark Down 56.9 181.4 Up 08:52:43 - 09:14:48 -1580
Kelowna 09:03:46 -44.2 Dark Down 57.3 181.2 Up 08:52:44 - 09:14:49 -1612
Peachland 09:03:47 -44.4 Dark Down 57.4 180.7 Up 08:52:45 - 09:14:50 -1617
Summerland 09:03:47 -44.5 Dark Down 57.6 180.8 Up 08:52:45 - 09:14:50 -1632
Penticton 09:03:47 -44.5 Dark Down 57.6 181.0 Up 08:52:44 - 09:14:49 -1640
Victoria 09:03:59 -46.5 Dark Down 58.5 174.1 Up 08:52:57 - 09:15:02 -1659
Oliver 09:03:47 -44.8 Dark Down 58.0 181.0 Up 08:52:45 - 09:14:50 -1673
Anarchist Mountain Observatory 09:03:47 -44.9 Dark Down 58.1 181.4 Up 08:52:44 - 09:14:49 -1692
Tonasket 09:03:47 -45.2 Dark Down 58.5 181.3 Up 08:52:45 - 09:14:50 -1719
Okanogan 09:03:48 -45.5 Dark Down 58.8 181.0 Up 08:52:46 - 09:14:51 -1747
Brewster 09:03:49 -45.8 Dark Down 59.1 180.7 Up 08:52:46 - 09:14:51 -1768
Manson/Chelan 09:03:50 -46.1 Dark Down 59.3 180.0 Up 08:52:48 - 09:14:53 -1781
Wenatchee 09:03:51 -46.6 Dark Down 59.8 179.7 Up 08:52:49 - 09:14:54 -1821
Ellensburg 09:03:53 -47.1 Dark Down 60.2 179.3 Up 08:52:50 - 09:14:55 -1855
Yakima 09:03:53 -47.4 Dark Down 60.6 179.2 Up 08:52:50 - 09:14:55 -1893
Toppenish/White Swan 09:03:52 -47.6 Dark Down 60.8 179.5 Up 08:52:50 - 09:14:55 -1917
Pasco 09:03:49 -47.2 Dark Down 60.9 182.0 Up 08:52:46 - 09:14:51 -1953
Goldendale 09:03:55 -48.2 Dark Down 61.3 178.7 Up 08:52:52 - 09:14:57 -1960
The Dalles 09:03:56 -48.5 Dark Down 61.6 178.0 Up 08:52:53 - 09:14:58 -1974
PNWRO 09:03:48 -47.4 Dark Down 61.1 182.5 Up 08:52:46 - 09:14:51 -1981
Maupin 09:03:56 -48.8 Dark Down 62.0 178.2 Up 08:52:54 - 09:14:59 -2016
Sisters 09:03:58 -49.8 Dark Down 62.8 177.1 Up 08:52:56 - 09:15:01 -2089
Redmond 09:03:57 -49.7 Dark Down 62.9 177.9 Up 08:52:55 - 09:15:00 -2099
Bend 09:03:58 -49.9 Dark Down 63.1 177.6 Up 08:52:55 - 09:15:00 -2117
Oregon Observatory 09:03:59 -50.1 Dark Down 63.3 177.3 Up 08:52:56 - 09:15:01 -2131
La Pine/Gilchrist 09:03:59 -50.3 Dark Down 63.5 177.2 Up 08:52:57 - 09:15:02 -2149
North Lake 09:03:58 -50.5 Dark Down 63.9 178.4 Up 08:52:55 - 09:15:00 -2203
Paisley 09:03:57 -50.8 Dark Down 64.5 179.2 Up 08:52:55 - 09:15:00 -2264
Klamath Falls 09:04:02 -51.7 Dark Down 64.9 176.4 Up 08:52:59 - 09:15:04 -2283
Lakeview 09:03:57 -51.2 Dark Down 65.0 179.6 Up 08:52:55 - 09:15:00 -2317
Cedarville 09:03:57 -51.7 Dark Down 65.6 180.0 Up 08:52:55 - 09:15:00 -2385
Fall River/Burney 09:04:02 -52.5 Dark Down 66.1 177.2 Up 08:52:59 - 09:15:04 -2406
Susanville 09:04:00 -52.8 Dark Down 66.7 178.9 Up 08:52:57 - 09:15:02 -2484
Greenville 09:04:02 -53.1 Dark Down 67.0 178.2 Up 08:52:59 - 09:15:04 -2505
Gimple 09:04:01 -53.1 Dark Down 67.0 178.4 Up 08:52:59 - 09:15:04 -2507
Quincy 09:04:02 -53.3 Dark Down 67.2 178.2 Up 08:52:59 - 09:15:04 -2525
Portola 09:04:00 -53.2 Dark Down 67.4 179.3 Up 08:52:58 - 09:15:03 -2548
Reno 09:03:58 -53.2 Dark Down 67.6 180.9 Up 08:52:56 - 09:15:01 -2589
Carson City 09:03:58 -53.5 Dark Down 68.0 181.0 Up 08:52:56 - 09:15:01 -2625
Gardnerville 09:03:58 -53.7 Dark Down 68.2 181.1 Up 08:52:56 - 09:15:01 -2650
Yerington 09:03:57 -53.4 Dark Down 68.2 182.6 Up 08:52:54 - 09:14:59 -2658
Hawthorne 09:03:55 -53.5 Dark Down 68.6 184.0 Up 08:52:52 - 09:14:57 -2716
Lee Vining 09:03:57 -54.2 Dark Down 69.2 182.8 Up 08:52:55 - 09:15:00 -2762
Dunrhomin 09:03:07 -45.1 Dark Down 63.6 213.3 Up 08:52:04 - 09:14:09 -2786
Tonopah 09:03:50 -53.2 Dark Down 68.9 187.8 Up 08:52:48 - 09:14:53 -2793
Bishop 09:03:55 -54.3 Dark Down 69.7 184.9 Up 08:52:53 - 09:14:58 -2839
Beatty 09:03:50 -53.9 Dark Down 70.0 189.5 Up 08:52:47 - 09:14:52 -2921
Indian Springs 09:03:46 -53.6 Dark Down 70.2 192.7 Up 08:52:44 - 09:14:49 -2977
CPSLO 09:04:06 -57.0 Dark Down 71.9 178.6 Up 08:53:03 - 09:15:08 -2997
Henderson 09:03:44 -53.6 Dark Down 70.6 194.9 Up 08:52:41 - 09:14:46 -3046
Patrick 09:03:41 -53.4 Dark Down 70.9 198.6 Up 08:52:38 - 09:14:43 -3134
Laughlin/Bullhead City 09:03:43 -54.0 Dark Down 71.3 196.8 Up 08:52:41 - 09:14:46 -3145
Kingman/Dolan Springs 09:03:42 -53.7 Dark Down 71.2 198.2 Up 08:52:39 - 09:14:44 -3153
Wildwood 09:04:00 -57.0 Dark Down 73.0 185.2 Up 08:52:57 - 09:15:02 -3168
Mohave Valley 09:03:44 -54.2 Dark Down 71.6 197.0 Up 08:52:41 - 09:14:46 -3173
Lake Havasu City 09:03:43 -54.3 Dark Down 71.9 198.1 Up 08:52:41 - 09:14:46 -3220
Idyllwild 09:03:53 -56.2 Dark Down 73.1 191.4 Up 08:52:50 - 09:14:55 -3248
Parker 09:03:43 -54.5 Dark Down 72.2 198.6 Up 08:52:41 - 09:14:46 -3257
Blythe 09:03:45 -55.1 Dark Down 72.8 198.2 Up 08:52:42 - 09:14:47 -3306
Calipatria 09:03:49 -56.0 Dark Down 73.5 195.7 Up 08:52:46 - 09:14:51 -3337
George/Scottsdale 09:03:34 -53.3 Dark Down 71.9 206.1 Up 08:52:32 - 09:14:37 -3351
Yuma 09:03:46 -55.7 Dark Down 73.7 199.1 Up 08:52:43 - 09:14:48 -3401

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 10TN182, (2021/10/11 09:04UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 31.55 163
Hamal          02:07:10.7 +23:27:42  2.0  7.42 132
27 Ari         02:30:54.4 +17:42:12  6.2  1.75 136
PPM 118163     02:22:33.3 +16:52:12  7.0  0.44 134
PPM 118205     02:25:01.9 +16:51:55  9.4  0.40 134
PPM 118197     02:24:41.1 +17:03:01 11.3  0.21 134
10TN182        02:23:56.9 +17:09:51 16.0       134
Positions are for J2000

Event circumstances last updated at 2021/01/26 21:10:34 UT

Marc W. Buie, Southwest Research Institute

RECON