RECON: TNO occultation with 15VE169

Event between 15VE169 and star GA1060:00421731 with event index number of 2748114

Geocentric closest approach at 2022/10/01 07:24:46 UTC

J2000 position of star is 03:43:48.9 +17:24:21
Equinox of date position of star is 03:45:04.2 +17:28:27
Stellar brightness G=16.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 161 degrees from the moon. Moon is 31% illuminated.
TNO apparent brightness V=24.2

[RECON map]
TNO is 43.4 AU from the Sun and 42.8 AU from the Earth.
The TNO is moving 15.0 km/sec on the sky relative to the star, or, 1.7 arcsec/hr.
The 1-sigma error in the time of the event is 232 seconds.
The 1-sigma cross-track error in the shadow position is 1895 km.
The sky-plane scale is 31038.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.7
Diameter=177.8 km assuming a 5% albedo -- 11.8 sec chord
Diameter=72.6 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 15VE169, (2022/10/01 07:25UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:13.7 +16:33:12  0.8 12.49 170
44Zet Per      03:55:34.1 +31:56:58  2.8 14.66 165
PPM 119253     03:40:43.2 +16:36:33  6.2  1.36 160
PPM 119299     03:43:54.5 +17:21:53  7.6  0.31 161
15VE169        03:45:06.8 +17:28:35 16.2       161
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 3.9 sigma about the mid-time.
The median site spacing is 20.4 km RECON observability=1.0 and success probability=12.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 07:27:08 -42.3 Dark Down 35.6 107.1 Up 07:12:08 - 07:42:08 3623
Victoria 07:27:27 -44.0 Dark Down 34.3 103.0 Up 07:12:27 - 07:42:27 3576
Peachland 07:27:12 -43.2 Dark Down 36.3 107.0 Up 07:12:12 - 07:42:12 3549
Kelowna 07:27:10 -43.2 Dark Down 36.4 107.3 Up 07:12:10 - 07:42:10 3548
Summerland 07:27:12 -43.4 Dark Down 36.4 107.0 Up 07:12:12 - 07:42:12 3537
Penticton 07:27:12 -43.5 Dark Down 36.5 107.0 Up 07:12:12 - 07:42:12 3530
Oliver 07:27:15 -43.8 Dark Down 36.6 106.8 Up 07:12:15 - 07:42:15 3508
Anarchist Mountain Observatory 07:27:15 -44.0 Dark Down 36.7 106.9 Up 07:12:15 - 07:42:15 3492
Tonasket 07:27:17 -44.3 Dark Down 36.8 106.6 Up 07:12:17 - 07:42:17 3474
Okanogan 07:27:20 -44.6 Dark Down 36.8 106.2 Up 07:12:20 - 07:42:20 3456
Brewster 07:27:22 -44.9 Dark Down 36.7 105.8 Up 07:12:22 - 07:42:22 3445
Manson/Chelan 07:27:23 -45.1 Dark Down 36.6 105.4 Up 07:12:23 - 07:42:23 3442
Wenatchee 07:27:28 -45.5 Dark Down 36.6 104.9 Up 07:12:28 - 07:42:28 3416
Ellensburg 07:27:30 -45.9 Dark Down 36.6 104.4 Up 07:12:30 - 07:42:30 3396
Yakima 07:27:32 -46.3 Dark Down 36.7 104.1 Up 07:12:32 - 07:42:32 3369
Toppenish/White Swan 07:27:33 -46.5 Dark Down 36.8 104.1 Up 07:12:33 - 07:42:33 3350
Sleaford 07:25:55 -40.7 Dark Down 43.1 122.2 Up 07:10:55 - 07:40:55 3341
Goldendale 07:27:37 -47.0 Dark Down 36.7 103.4 Up 07:12:37 - 07:42:37 3326
The Dalles 07:27:39 -47.2 Dark Down 36.5 102.9 Up 07:12:39 - 07:42:39 3322
Maupin 07:27:41 -47.6 Dark Down 36.7 102.7 Up 07:12:41 - 07:42:41 3290
PNWRO 07:27:31 -47.0 Dark Down 37.9 105.1 Up 07:12:31 - 07:42:31 3280
Sisters 07:27:48 -48.5 Dark Down 36.5 101.7 Up 07:12:48 - 07:42:48 3246
Bend 07:27:48 -48.7 Dark Down 36.8 101.7 Up 07:12:48 - 07:42:48 3221
Oregon Observatory 07:27:50 -48.9 Dark Down 36.7 101.5 Up 07:12:50 - 07:42:50 3214
North Lake 07:27:52 -49.6 Dark Down 37.2 101.5 Up 07:12:52 - 07:42:52 3152
Chiloquin 07:27:58 -50.1 Dark Down 36.7 100.2 Up 07:12:58 - 07:42:58 3134
Klamath Falls 07:27:59 -50.5 Dark Down 36.8 100.0 Up 07:12:59 - 07:42:59 3107
Lakeview 07:27:56 -50.7 Dark Down 37.8 101.1 Up 07:12:56 - 07:42:56 3059
Fall River/Burney 07:28:06 -51.7 Dark Down 37.3 99.5 Up 07:13:06 - 07:43:06 3010
Cedarville 07:28:00 -51.4 Dark Down 38.1 100.8 Up 07:13:00 - 07:43:00 3005
Susanville 07:28:07 -52.4 Dark Down 38.0 99.6 Up 07:13:07 - 07:43:07 2939
Greenville 07:28:09 -52.6 Dark Down 37.8 99.1 Up 07:13:09 - 07:43:09 2928
Gimple 07:28:09 -52.6 Dark Down 37.9 99.2 Up 07:13:09 - 07:43:09 2925
Quincy 07:28:10 -52.8 Dark Down 37.8 99.0 Up 07:13:10 - 07:43:10 2913
Portola 07:28:09 -53.0 Dark Down 38.2 99.2 Up 07:13:09 - 07:43:09 2888
Reno 07:28:09 -53.4 Dark Down 38.7 99.5 Up 07:13:09 - 07:43:09 2846
Carson City 07:28:11 -53.7 Dark Down 38.8 99.2 Up 07:13:11 - 07:43:11 2818
Gardnerville 07:28:12 -54.0 Dark Down 38.9 99.1 Up 07:13:12 - 07:43:12 2798
Yerington 07:28:11 -54.0 Dark Down 39.3 99.6 Up 07:13:11 - 07:43:11 2782
Hawthorne 07:28:11 -54.5 Dark Down 39.8 99.6 Up 07:13:11 - 07:43:11 2728
Lee Vining 07:28:16 -55.0 Dark Down 39.6 98.8 Up 07:13:16 - 07:43:16 2701
Tonopah 07:28:10 -55.1 Dark Down 41.0 100.2 Up 07:13:10 - 07:43:10 2643
Bishop 07:28:17 -55.7 Dark Down 40.2 98.8 Up 07:13:17 - 07:43:17 2629
Beatty 07:28:14 -56.3 Dark Down 41.6 99.6 Up 07:13:14 - 07:43:14 2535
Indian Springs 07:28:11 -56.6 Dark Down 42.5 100.0 Up 07:13:11 - 07:43:11 2471
Dunrhomin 07:27:16 -52.0 Dark Down 49.2 112.4 Up 07:12:16 - 07:42:16 2412
Henderson 07:28:12 -57.2 Dark Down 43.1 100.1 Up 07:13:12 - 07:43:12 2403
Wildwood 07:28:33 -58.9 Dark Down 40.5 95.9 Up 07:13:33 - 07:43:33 2372
Laughlin/Bullhead City 07:28:15 -58.0 Dark Down 43.6 99.5 Up 07:13:15 - 07:43:15 2316
Patrick 07:28:12 -57.8 Dark Down 44.1 100.3 Up 07:13:12 - 07:43:12 2311
Kingman/Dolan Springs 07:28:13 -58.0 Dark Down 44.0 99.9 Up 07:13:13 - 07:43:13 2300
Mohave Valley 07:28:16 -58.3 Dark Down 43.7 99.3 Up 07:13:16 - 07:43:16 2293
Idyllwild 07:28:28 -59.4 Dark Down 42.1 96.8 Up 07:13:28 - 07:43:28 2274
Lake Havasu City 07:28:17 -58.7 Dark Down 43.9 99.1 Up 07:13:17 - 07:43:17 2251
Parker 07:28:18 -59.1 Dark Down 44.0 98.8 Up 07:13:18 - 07:43:18 2220
Calipatria 07:28:28 -60.1 Dark Down 43.2 97.0 Up 07:13:28 - 07:43:28 2179
Yuma 07:28:26 -60.5 Dark Down 44.0 97.2 Up 07:13:26 - 07:43:26 2109
George/Scottsdale 07:28:12 -59.4 Dark Down 46.1 100.0 Up 07:13:12 - 07:43:12 2096

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 15VE169, (2022/10/01 07:25UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 12.49 170
44Zet Per      03:54:07.9 +31:53:01  2.8 14.66 165
PPM 119253     03:39:25.8 +16:32:11  6.2  1.36 160
PPM 119299     03:42:36.7 +17:17:37  7.6  0.31 161
15VE169        03:43:48.9 +17:24:21 16.2       161
Positions are for J2000

Event circumstances last updated at 2022/01/02 01:30:23 UT

Marc W. Buie, Southwest Research Institute

RECON