RECON: TNO occultation with 15VB166

Event between 15VB166 and star GA1100:00618639 with event index number of 2571830

Geocentric closest approach at 2022/11/14 11:46:11 UTC

J2000 position of star is 04:29:11.9 +21:09:50
Equinox of date position of star is 04:30:30.8 +21:12:40
Stellar brightness G=15.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 51 degrees from the moon. Moon is 69% illuminated.
TNO apparent brightness V=23.8

[RECON map]
TNO is 32.2 AU from the Sun and 31.2 AU from the Earth.
The TNO is moving 22.8 km/sec on the sky relative to the star, or, 3.6 arcsec/hr.
The 1-sigma error in the time of the event is 147 seconds.
The 1-sigma cross-track error in the shadow position is 1341 km.
The sky-plane scale is 22640.9 km/arcsec.

The TNO has an absolute magnitude Hv=8.7
Diameter=111.2 km assuming a 5% albedo -- 4.9 sec chord
Diameter=45.4 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is 2:1E
 
 
 
 
 
 

Star training set for 15VB166, (2022/11/14 11:46UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:14.1 +16:33:12  0.8  4.92  51
44Zet Per      03:55:34.5 +31:56:59  2.8 13.27  56
PPM 093535     04:29:22.4 +21:40:08  5.9  0.53  51
PPM 093543     04:30:03.1 +20:43:36  8.1  0.50  51
PPM 093542     04:29:58.7 +20:52:50  9.1  0.36  51
PPM 093539     04:29:47.0 +21:05:25 10.6  0.22  51
15VB166        04:30:33.1 +21:12:46 15.1        51
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 31.1 km RECON observability=1.0 and success probability=28.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 11:43:23 -24.2 Dark Up 37.1 256.4 Up 11:30:39 - 11:56:08 2796
Kamloops 11:43:51 -33.2 Dark Up 46.0 243.6 Up 11:31:06 - 11:56:35 2495
Kelowna 11:43:47 -32.8 Dark Up 45.8 245.3 Up 11:31:02 - 11:56:31 2424
Peachland 11:43:47 -33.1 Dark Up 46.1 245.1 Up 11:31:03 - 11:56:32 2410
Summerland 11:43:47 -33.0 Dark Up 46.1 245.4 Up 11:31:02 - 11:56:31 2397
Penticton 11:43:47 -33.0 Dark Up 46.0 245.5 Up 11:31:02 - 11:56:31 2391
Oliver 11:43:46 -33.0 Dark Up 46.2 245.9 Up 11:31:01 - 11:56:30 2357
Anarchist Mountain Observatory 11:43:45 -32.9 Dark Up 46.1 246.2 Up 11:31:00 - 11:56:29 2342
Tonasket 11:43:45 -33.0 Dark Up 46.3 246.4 Up 11:31:01 - 11:56:30 2311
Okanogan 11:43:45 -33.2 Dark Up 46.5 246.6 Up 11:31:00 - 11:56:29 2276
Victoria 11:43:54 -35.6 Dark Up 48.7 242.4 Up 11:31:10 - 11:56:39 2259
Brewster 11:43:44 -33.4 Dark Up 46.8 246.7 Up 11:31:00 - 11:56:29 2247
Manson/Chelan 11:43:45 -33.7 Dark Up 47.1 246.5 Up 11:31:00 - 11:56:29 2223
Wenatchee 11:43:45 -33.8 Dark Up 47.4 246.8 Up 11:31:00 - 11:56:29 2175
Ellensburg 11:43:45 -34.1 Dark Up 47.7 247.0 Up 11:31:00 - 11:56:29 2131
Yakima 11:43:44 -34.1 Dark Up 47.8 247.4 Up 11:31:00 - 11:56:29 2091
Toppenish/White Swan 11:43:43 -34.1 Dark Up 47.8 247.8 Up 11:30:59 - 11:56:28 2070
PNWRO 11:43:39 -33.1 Dark Up 47.0 249.6 Up 11:30:54 - 11:56:23 2048
Goldendale 11:43:43 -34.5 Dark Up 48.3 247.9 Up 11:30:59 - 11:56:28 2011
The Dalles 11:43:44 -34.7 Dark Up 48.6 247.8 Up 11:31:00 - 11:56:29 1985
Maupin 11:43:43 -34.7 Dark Up 48.7 248.3 Up 11:30:59 - 11:56:28 1943
Sisters 11:43:43 -35.2 Dark Up 49.4 248.8 Up 11:30:59 - 11:56:28 1849
Bend 11:43:42 -35.1 Dark Up 49.3 249.3 Up 11:30:57 - 11:56:26 1827
Oregon Observatory 11:43:42 -35.2 Dark Up 49.4 249.3 Up 11:30:58 - 11:56:27 1809
North Lake 11:43:39 -34.9 Dark Up 49.3 250.6 Up 11:30:55 - 11:56:24 1748
Chiloquin 11:43:41 -35.7 Dark Up 50.2 250.4 Up 11:30:57 - 11:56:26 1669
Dunrhomin 11:42:55 -23.4 Dark Up 38.5 266.0 Up 11:30:11 - 11:55:40 1661
Lakeview 11:43:36 -34.6 Dark Up 49.2 252.2 Up 11:30:52 - 11:56:21 1644
Klamath Falls 11:43:40 -35.7 Dark Up 50.2 250.8 Up 11:30:56 - 11:56:25 1634
CU-SBO 11:42:55 -23.4 Dark Up 38.6 266.2 Up 11:30:10 - 11:55:39 1634
Cedarville 11:43:35 -34.6 Dark Up 49.3 253.1 Up 11:30:50 - 11:56:19 1578
Fall River/Burney 11:43:38 -35.5 Dark Up 50.3 252.5 Up 11:30:53 - 11:56:22 1515
Susanville 11:43:35 -35.0 Dark Up 50.0 253.9 Up 11:30:50 - 11:56:19 1457
Gimple 11:43:35 -35.2 Dark Up 50.2 254.1 Up 11:30:50 - 11:56:19 1426
Greenville 11:43:36 -35.3 Dark Up 50.3 254.0 Up 11:30:51 - 11:56:20 1425
Quincy 11:43:35 -35.3 Dark Up 50.3 254.2 Up 11:30:50 - 11:56:19 1404
Portola 11:43:33 -35.0 Dark Up 50.0 254.8 Up 11:30:49 - 11:56:18 1396
Reno 11:43:31 -34.5 Dark Up 49.6 255.7 Up 11:30:46 - 11:56:15 1375
Carson City 11:43:31 -34.5 Dark Up 49.7 256.1 Up 11:30:46 - 11:56:15 1337
Yerington 11:43:28 -34.0 Dark Up 49.2 256.8 Up 11:30:44 - 11:56:13 1324
Gardnerville 11:43:30 -34.5 Dark Up 49.7 256.4 Up 11:30:45 - 11:56:14 1312
Hawthorne 11:43:26 -33.6 Dark Up 49.0 257.8 Up 11:30:42 - 11:56:11 1281
Tonopah 11:43:22 -32.6 Dark Up 48.0 259.4 Up 11:30:37 - 11:56:06 1249
Lee Vining 11:43:27 -34.1 Dark Up 49.4 258.0 Up 11:30:42 - 11:56:11 1216
Bishop 11:43:24 -33.5 Dark Up 49.0 259.3 Up 11:30:40 - 11:56:09 1161
Beatty 11:43:19 -32.2 Dark Up 47.8 261.0 Up 11:30:34 - 11:56:03 1132
Indian Springs 11:43:15 -31.4 Dark Up 47.0 262.1 Up 11:30:31 - 11:56:00 1112
Henderson 11:43:13 -30.8 Dark Up 46.5 263.2 Up 11:30:28 - 11:55:57 1064
Patrick 11:43:09 -29.9 Dark Up 45.7 264.6 Up 11:30:24 - 11:55:53 1014
Kingman/Dolan Springs 11:43:09 -30.1 Dark Up 45.9 264.7 Up 11:30:24 - 11:55:53 988
Laughlin/Bullhead City 11:43:10 -30.5 Dark Up 46.3 264.4 Up 11:30:26 - 11:55:55 978
Mohave Valley 11:43:10 -30.5 Dark Up 46.3 264.6 Up 11:30:25 - 11:55:54 949
Lake Havasu City 11:43:09 -30.3 Dark Up 46.2 265.2 Up 11:30:24 - 11:55:53 910
Parker 11:43:08 -30.2 Dark Up 46.2 265.6 Up 11:30:24 - 11:55:53 873
George/Scottsdale 11:43:01 -28.2 Dark Up 44.2 267.5 Up 11:30:16 - 11:55:45 865
Wildwood 11:43:21 -33.7 Dark Up 49.7 262.9 Up 11:30:36 - 11:56:05 809
Idyllwild 11:43:15 -32.2 Dark Up 48.2 264.5 Up 11:30:30 - 11:55:59 795
Calipatria 11:43:10 -31.2 Dark Up 47.3 265.9 Up 11:30:26 - 11:55:55 746
Yuma 11:43:07 -30.4 Dark Up 46.6 266.9 Up 11:30:23 - 11:55:52 712

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 15VB166, (2022/11/14 11:46UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8  4.92  51
44Zet Per      03:54:07.9 +31:53:01  2.8 13.27  56
PPM 093535     04:28:00.9 +21:37:10  5.9  0.53  51
PPM 093543     04:28:42.2 +20:40:39  8.1  0.50  51
PPM 093542     04:28:37.7 +20:49:54  9.1  0.36  51
PPM 093539     04:28:25.8 +21:02:28 10.6  0.22  51
15VB166        04:29:11.9 +21:09:50 15.1        51
Positions are for J2000

Event circumstances last updated at 2022/03/16 01:02:04 UT

Marc W. Buie, Southwest Research Institute

RECON