RECON: TNO occultation with 363330

Event between (363330) 02PQ145 and star UC4-393-132709 with event index number of 149011

Geocentric closest approach at 2018/09/01 09:40:44 UTC

J2000 position of star is 21:55:27.7 -11:34:17
Equinox of date position of star is 21:56:23.5 -11:29:19
Stellar brightness R=14.9, use SENSEUP=128
Star is 81 degrees from the moon. Moon is 68% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 45.6 AU from the Sun and 44.6 AU from the Earth.
The TNO is moving 24.5 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 171 seconds.
The 1-sigma cross-track error in the shadow position is 2426 km.
The sky-plane scale is 32370.3 km/arcsec.

The TNO has an absolute magnitude Hv=5.8
Diameter=416.9 km assuming a 5% albedo -- 17.0 sec chord
Diameter=170.2 km assuming a 30% albedo -- 6.9 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 363330, (2018/09/01 09:41UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:40.7 -29:31:22  1.2 23.13  73
PPM 239401     21:50:41.4 -12:38:06  6.5  1.82  82
PPM 239519     21:56:02.0 -11:52:53  8.2  0.41  81
PPM 239512     21:55:26.3 -11:35:24  9.2  0.27  81
363330         21:56:27.7 -11:28:57 14.9        80
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 19.1 km RECON observability=1.0 and success probability=12.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 09:37:52 -28.8 Dark Up 21.4 218.9 Low 09:23:08 - 09:52:37 3449
Tonasket 09:37:52 -29.0 Dark Up 21.6 219.0 Low 09:23:08 - 09:52:37 3432
Okanogan 09:37:52 -29.3 Dark Up 21.9 218.9 Low 09:23:08 - 09:52:37 3412
Brewster 09:37:52 -29.6 Dark Up 22.2 218.8 Low 09:23:08 - 09:52:37 3398
Manson/Chelan 09:37:52 -29.9 Dark Up 22.5 218.5 Low 09:23:07 - 09:52:36 3394
Entiat 09:37:52 -30.1 Dark Up 22.7 218.5 Low 09:23:08 - 09:52:37 3380
Wenatchee 09:37:52 -30.4 Dark Up 23.0 218.5 Low 09:23:07 - 09:52:36 3364
Ellensburg 09:37:53 -30.8 Dark Up 23.4 218.4 Low 09:23:08 - 09:52:37 3341
Yakima 09:37:52 -31.2 Dark Up 23.7 218.5 Low 09:23:07 - 09:52:36 3311
Toppenish/White Swan 09:37:52 -31.3 Dark Up 23.8 218.7 Low 09:23:08 - 09:52:37 3290
Goldendale 09:37:52 -32.0 Dark Up 24.4 218.4 Low 09:23:07 - 09:52:36 3261
The Dalles 09:37:53 -32.3 Dark Up 24.8 218.1 Low 09:23:09 - 09:52:38 3255
Pasco 09:37:49 -31.0 Dark Up 23.3 219.9 Low 09:23:04 - 09:52:33 3242
George/Umatilla 09:37:49 -31.4 Dark Up 23.7 219.8 Low 09:23:04 - 09:52:33 3223
Maupin 09:37:52 -32.6 Dark Up 25.0 218.4 Low 09:23:08 - 09:52:37 3220
PNWRO 09:37:47 -31.1 Dark Up 23.4 220.2 Low 09:23:03 - 09:52:32 3216
Madras/Culver 09:37:52 -33.1 Dark Up 25.5 218.5 Low 09:23:07 - 09:52:36 3180
Sisters 09:37:53 -33.5 Dark Up 25.9 218.1 Low 09:23:09 - 09:52:38 3169
Redmond 09:37:52 -33.4 Dark Up 25.8 218.5 Low 09:23:08 - 09:52:37 3155
Bend 09:37:52 -33.7 Dark Up 26.0 218.5 Low 09:23:07 - 09:52:36 3143
Oregon Observatory 09:37:52 -33.9 Dark Up 26.2 218.4 Low 09:23:08 - 09:52:37 3134
La Pine/Gilchrist 09:37:52 -34.1 Dark Up 26.4 218.4 Low 09:23:07 - 09:52:36 3120
North Lake 09:37:51 -34.2 Dark Up 26.5 219.1 Low 09:23:06 - 09:52:35 3067
Chiloquin 09:37:53 -35.2 Dark Up 27.4 218.4 Low 09:23:08 - 09:52:37 3045
Klamath Falls 09:37:52 -35.5 Dark Up 27.7 218.6 Low 09:23:07 - 09:52:36 3015
Paisley 09:37:49 -34.6 Dark Up 26.7 219.6 Low 09:23:04 - 09:52:33 3012
Tulelake 09:37:51 -35.6 Dark Up 27.7 219.0 Low 09:23:07 - 09:52:36 2984
Lakeview 09:37:48 -35.0 Dark Up 27.0 220.0 Low 09:23:04 - 09:52:33 2966
Fall River/Burney 09:37:50 -36.4 Dark Up 28.4 219.4 Low 09:23:06 - 09:52:35 2909
Cedarville 09:37:48 -35.5 Dark Up 27.4 220.4 Low 09:23:03 - 09:52:32 2907
Susanville 09:37:47 -36.6 Dark Up 28.5 220.3 Low 09:23:03 - 09:52:32 2833
Greenville 09:37:49 -37.0 Dark Up 28.9 220.1 Low 09:23:04 - 09:52:33 2821
Gimple 09:37:49 -37.0 Dark Up 28.8 220.2 Low 09:23:04 - 09:52:33 2818
Quincy 09:37:49 -37.2 Dark Up 29.0 220.2 Low 09:23:04 - 09:52:33 2804
Portola 09:37:47 -37.1 Dark Up 28.9 220.7 Low 09:23:03 - 09:52:32 2778
Reno 09:37:45 -37.1 Dark Up 28.8 221.4 Low 09:23:01 - 09:52:30 2734
Carson City 09:37:45 -37.4 Dark Up 29.0 221.5 Low 09:23:01 - 09:52:30 2704
Gardnerville 09:37:45 -37.6 Dark Up 29.2 221.7 Low 09:23:00 - 09:52:29 2682
Yerington 09:37:43 -37.3 Dark Up 28.9 222.2 Low 09:22:59 - 09:52:28 2666
Hawthorne 09:37:42 -37.4 Dark Up 28.9 222.9 Low 09:22:58 - 09:52:27 2609
Lee Vining 09:37:43 -38.1 Dark Up 29.6 222.6 Low 09:22:58 - 09:52:27 2578
Tonopah 09:37:38 -37.2 Dark Up 28.5 224.4 Low 09:22:54 - 09:52:23 2521
Bishop 09:37:41 -38.3 Dark Up 29.6 223.5 Low 09:22:56 - 09:52:25 2502
Lone Pine 09:37:40 -38.8 Dark Up 30.0 224.1 Up 09:22:55 - 09:52:24 2425
Beatty 09:37:37 -38.0 Dark Up 29.1 225.2 Low 09:22:52 - 09:52:21 2406
CPSLO 09:37:46 -41.0 Dark Up 32.4 222.2 Up 09:23:01 - 09:52:30 2404
Indian Springs 09:37:33 -37.7 Dark Up 28.7 226.3 Low 09:22:49 - 09:52:18 2340
Niwot 09:37:14 -29.7 Dark Up 20.2 234.0 Low 09:22:29 - 09:51:58 2306
Henderson 09:37:31 -37.8 Dark Up 28.7 227.1 Low 09:22:47 - 09:52:16 2268
Wildwood 09:37:40 -41.1 Dark Up 32.1 224.7 Up 09:22:56 - 09:52:25 2225
Searchlight/Boulder City 09:37:31 -38.2 Dark Up 29.0 227.4 Low 09:22:47 - 09:52:16 2216
Laughlin/Bullhead City 09:37:30 -38.3 Dark Up 29.0 227.9 Low 09:22:46 - 09:52:15 2177
Patrick 09:37:29 -37.7 Dark Up 28.4 228.4 Low 09:22:44 - 09:52:13 2174
Kingman/Dolan Springs 09:37:29 -38.0 Dark Up 28.7 228.3 Low 09:22:44 - 09:52:13 2161
Mohave Valley 09:37:29 -38.5 Dark Up 29.2 228.0 Low 09:22:45 - 09:52:14 2152
Idyllwild 09:37:35 -40.5 Dark Up 31.3 226.6 Up 09:22:50 - 09:52:19 2125
DCO 09:37:26 -37.6 Dark Up 28.2 229.1 Low 09:22:42 - 09:52:11 2122
Lake Havasu City 09:37:29 -38.7 Dark Up 29.3 228.3 Low 09:22:45 - 09:52:14 2108
Parker 09:37:29 -38.9 Dark Up 29.5 228.5 Low 09:22:44 - 09:52:13 2075
Blythe 09:37:29 -39.5 Dark Up 30.0 228.5 Up 09:22:45 - 09:52:14 2038
Calipatria 09:37:31 -40.4 Dark Up 31.0 227.9 Up 09:22:47 - 09:52:16 2027
Yuma 09:37:29 -40.2 Dark Up 30.7 228.9 Up 09:22:45 - 09:52:14 1955

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 363330, (2018/09/01 09:41UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.5 -29:37:23  1.2 23.13  73
PPM 239401     21:49:41.0 -12:43:22  6.5  1.82  82
PPM 239519     21:55:01.9 -11:58:13  8.2  0.41  81
PPM 239512     21:54:26.2 -11:40:44  9.2  0.27  81
363330         21:55:27.7 -11:34:17 14.9        81
Positions are for J2000

Event circumstances last updated at 2017/05/19 18:02:31 UT

Marc W. Buie, Southwest Research Institute

RECON