RECON: TNO occultation with 527328

Event between (527328) 07TK422 and star GA1060:00346234 with event index number of 2136272

Geocentric closest approach at 2022/11/18 10:33:46 UTC

J2000 position of star is 03:23:03.2 +17:51:38
Equinox of date position of star is 03:24:20.8 +17:56:25
Stellar brightness G=16.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 114 degrees from the moon. Moon is 32% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 24.3 AU from the Sun and 23.3 AU from the Earth.
The TNO is moving 24.5 km/sec on the sky relative to the star, or, 5.2 arcsec/hr.
The 1-sigma error in the time of the event is 173 seconds.
The 1-sigma cross-track error in the shadow position is 1757 km.
The sky-plane scale is 16899.5 km/arcsec.

The TNO has an absolute magnitude Hv=9.1
Diameter=83.2 km assuming a 5% albedo -- 3.8 sec chord
Diameter=34.0 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 527328, (2022/11/18 10:34UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:14.2 +16:33:13  0.8 17.45  98
Menkar         03:03:28.7 +04:10:41  2.5 14.68 123
63Tau2Ari      03:24:04.5 +20:49:20  6.2  2.88 113
PPM 119006     03:21:17.1 +17:34:58  8.2  0.81 115
PPM 119035     03:23:50.6 +17:48:20  9.1  0.18 114
527328         03:24:21.2 +17:56:27 16.4       114
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 29.4 km RECON observability=1.0 and success probability=32.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:30:54 -36.1 Dark Up 33.2 255.9 Up 10:16:00 - 10:45:49 801
Kamloops 10:31:19 -44.9 Dark Up 42.1 243.3 Up 10:16:24 - 10:46:13 582
Kelowna 10:31:15 -44.7 Dark Up 41.9 244.8 Up 10:16:21 - 10:46:10 504
Peachland 10:31:16 -45.0 Dark Up 42.1 244.6 Up 10:16:21 - 10:46:10 493
Summerland 10:31:16 -45.0 Dark Up 42.1 244.8 Up 10:16:21 - 10:46:10 478
Penticton 10:31:15 -44.9 Dark Up 42.1 245.0 Up 10:16:21 - 10:46:10 472
Oliver 10:31:15 -45.1 Dark Up 42.3 245.3 Up 10:16:20 - 10:46:09 437
Anarchist Mountain Observatory 10:31:14 -45.1 Dark Up 42.2 245.6 Up 10:16:19 - 10:46:08 421
Tonasket 10:31:14 -45.3 Dark Up 42.4 245.8 Up 10:16:19 - 10:46:08 390
Victoria 10:31:22 -47.6 Dark Up 44.8 241.9 Up 10:16:28 - 10:46:17 363
Okanogan 10:31:14 -45.5 Dark Up 42.6 245.9 Up 10:16:19 - 10:46:08 356
Brewster 10:31:14 -45.7 Dark Up 42.8 246.0 Up 10:16:19 - 10:46:08 328
Manson/Chelan 10:31:14 -46.0 Dark Up 43.2 245.8 Up 10:16:20 - 10:46:09 306
Wenatchee 10:31:14 -46.4 Dark Up 43.5 246.0 Up 10:16:19 - 10:46:08 258
Ellensburg 10:31:14 -46.7 Dark Up 43.8 246.2 Up 10:16:19 - 10:46:08 216
Yakima 10:31:13 -46.9 Dark Up 43.9 246.5 Up 10:16:19 - 10:46:08 174
Toppenish/White Swan 10:31:13 -46.8 Dark Up 43.9 246.9 Up 10:16:18 - 10:46:07 153
PNWRO 10:31:09 -46.0 Dark Up 43.1 248.6 Up 10:16:14 - 10:46:03 120
Goldendale 10:31:13 -47.3 Dark Up 44.4 246.9 Up 10:16:18 - 10:46:07 95
The Dalles 10:31:14 -47.7 Dark Up 44.7 246.8 Up 10:16:19 - 10:46:08 72
Maupin 10:31:13 -47.8 Dark Up 44.8 247.3 Up 10:16:18 - 10:46:07 29
Sisters 10:31:13 -48.5 Dark Up 45.5 247.6 Up 10:16:18 - 10:46:07 -62
Bend 10:31:12 -48.4 Dark Up 45.4 248.1 Up 10:16:18 - 10:46:07 -86
Oregon Observatory 10:31:12 -48.5 Dark Up 45.6 248.1 Up 10:16:18 - 10:46:07 -104
North Lake 10:31:10 -48.4 Dark Up 45.4 249.2 Up 10:16:15 - 10:46:04 -169
Chiloquin 10:31:12 -49.3 Dark Up 46.3 249.0 Up 10:16:17 - 10:46:06 -242
Klamath Falls 10:31:11 -49.4 Dark Up 46.4 249.4 Up 10:16:17 - 10:46:06 -278
Lakeview 10:31:07 -48.4 Dark Up 45.4 250.7 Up 10:16:13 - 10:46:02 -278
Cedarville 10:31:06 -48.5 Dark Up 45.5 251.5 Up 10:16:12 - 10:46:01 -346
Dunrhomin 10:30:31 -37.9 Dark Up 34.8 264.3 Up 10:15:36 - 10:45:25 -373
CU-SBO 10:30:31 -38.0 Dark Up 34.9 264.4 Up 10:15:36 - 10:45:25 -400
Fall River/Burney 10:31:09 -49.6 Dark Up 46.5 250.9 Up 10:16:14 - 10:46:03 -401
Susanville 10:31:06 -49.3 Dark Up 46.2 252.2 Up 10:16:12 - 10:46:01 -465
Greenville 10:31:07 -49.6 Dark Up 46.5 252.2 Up 10:16:12 - 10:46:01 -495
Gimple 10:31:07 -49.5 Dark Up 46.4 252.3 Up 10:16:12 - 10:46:01 -495
Quincy 10:31:07 -49.6 Dark Up 46.6 252.4 Up 10:16:12 - 10:46:01 -516
Portola 10:31:05 -49.3 Dark Up 46.2 252.9 Up 10:16:11 - 10:46:00 -528
Reno 10:31:03 -48.9 Dark Up 45.9 253.8 Up 10:16:09 - 10:45:58 -555
Carson City 10:31:03 -49.0 Dark Up 45.9 254.1 Up 10:16:08 - 10:45:57 -593
Yerington 10:31:01 -48.6 Dark Up 45.5 254.9 Up 10:16:07 - 10:45:56 -611
Gardnerville 10:31:03 -49.1 Dark Up 46.0 254.4 Up 10:16:08 - 10:45:57 -618
Hawthorne 10:30:59 -48.3 Dark Up 45.2 255.8 Up 10:16:05 - 10:45:54 -658
Tonopah 10:30:55 -47.4 Dark Up 44.3 257.3 Up 10:16:01 - 10:45:50 -702
Lee Vining 10:31:00 -48.9 Dark Up 45.8 255.9 Up 10:16:05 - 10:45:54 -720
Bishop 10:30:58 -48.4 Dark Up 45.3 257.1 Up 10:16:03 - 10:45:52 -782
Beatty 10:30:53 -47.3 Dark Up 44.2 258.8 Up 10:15:58 - 10:45:47 -824
Indian Springs 10:30:50 -46.5 Dark Up 43.4 259.9 Up 10:15:55 - 10:45:44 -853
Henderson 10:30:47 -46.1 Dark Up 42.9 260.9 Up 10:15:53 - 10:45:42 -906
Patrick 10:30:44 -45.3 Dark Up 42.1 262.2 Up 10:15:50 - 10:45:39 -966
Kingman/Dolan Springs 10:30:44 -45.5 Dark Up 42.3 262.3 Up 10:15:50 - 10:45:39 -991
Laughlin/Bullhead City 10:30:46 -45.9 Dark Up 42.7 261.9 Up 10:15:51 - 10:45:40 -997
Mohave Valley 10:30:45 -45.9 Dark Up 42.8 262.2 Up 10:15:51 - 10:45:40 -1027
Lake Havasu City 10:30:45 -45.8 Dark Up 42.6 262.7 Up 10:15:50 - 10:45:39 -1068
Parker 10:30:44 -45.8 Dark Up 42.7 263.1 Up 10:15:50 - 10:45:39 -1106
George/Scottsdale 10:30:37 -43.9 Dark Up 40.7 265.0 Up 10:15:43 - 10:45:32 -1134
Wildwood 10:30:55 -49.3 Dark Up 46.2 260.2 Up 10:16:01 - 10:45:50 -1135
Idyllwild 10:30:50 -47.8 Dark Up 44.7 261.9 Up 10:15:55 - 10:45:44 -1165
Calipatria 10:30:46 -46.9 Dark Up 43.8 263.2 Up 10:15:52 - 10:45:41 -1224
Yuma 10:30:44 -46.2 Dark Up 43.1 264.2 Up 10:15:49 - 10:45:38 -1266

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 527328, (2022/11/18 10:34UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 17.45  98
Menkar         03:02:16.8 +04:05:21  2.5 14.68 123
63Tau2Ari      03:22:45.2 +20:44:31  6.2  2.88 113
PPM 119006     03:19:59.3 +17:30:04  8.2  0.81 115
PPM 119035     03:22:32.6 +17:43:30  9.1  0.18 114
527328         03:23:03.2 +17:51:38 16.4       114
Positions are for J2000

Event circumstances last updated at 2022/10/03 04:12:57 UT

Marc W. Buie, Southwest Research Institute

RECON