RECON: TNO occultation with 15VH165

Event between 15VH165 and star GA1160:00959758 with event index number of 2572390

Geocentric closest approach at 2028/12/23 04:49:12 UTC

J2000 position of star is 04:54:10.9 +27:26:01
Equinox of date position of star is 04:55:34.7 +27:28:07
Stellar brightness G=15.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 81 degrees from the moon. Moon is 43% illuminated.
TNO apparent brightness V=23.9

[RECON map]
TNO is 33.5 AU from the Sun and 32.6 AU from the Earth.
The TNO is moving 23.7 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 391 seconds.
The 1-sigma cross-track error in the shadow position is 4150 km.
The sky-plane scale is 23614.1 km/arcsec.

The TNO has an absolute magnitude Hv=8.6
Diameter=113.8 km assuming a 5% albedo -- 4.8 sec chord
Diameter=46.4 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 15VH165, (2028/12/23 04:49UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:35.2 +16:33:56  0.8 11.71  76
3Iot Aur       04:58:53.1 +33:12:33  2.7  5.76  82
PPM 093846     04:54:36.0 +27:56:36  6.2  0.56  81
PPM 093894     04:57:22.8 +27:14:47  8.4  0.39  81
15VH165        04:55:59.3 +27:28:43 15.3        81
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 2.3 sigma about the mid-time.
The median site spacing is 26.0 km RECON observability=1.0 and success probability=4.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 04:50:21 -44.4 Dark Up 58.0 125.6 Up 04:35:21 - 05:05:21 9248
Kelowna 04:50:21 -45.2 Dark Up 58.9 125.7 Up 04:35:21 - 05:05:21 9152
Peachland 04:50:21 -45.1 Dark Up 58.8 125.1 Up 04:35:21 - 05:05:21 9149
Summerland 04:50:21 -45.2 Dark Up 59.0 125.1 Up 04:35:21 - 05:05:21 9133
Sleaford 04:49:46 -51.7 Dark Up 63.0 150.1 Up 04:34:46 - 05:04:46 9127
Penticton 04:50:21 -45.3 Dark Up 59.1 125.1 Up 04:35:21 - 05:05:21 9124
Victoria 04:50:39 -43.2 Dark Up 57.5 118.8 Up 04:35:39 - 05:05:39 9114
Oliver 04:50:21 -45.4 Dark Up 59.3 124.7 Up 04:35:21 - 05:05:21 9091
Anarchist Mountain Observatory 04:50:21 -45.5 Dark Up 59.5 124.7 Up 04:35:21 - 05:05:21 9071
Tonasket 04:50:21 -45.6 Dark Up 59.6 124.2 Up 04:35:21 - 05:05:21 9043
Okanogan 04:50:21 -45.6 Dark Up 59.7 123.5 Up 04:35:21 - 05:05:21 9015
Brewster 04:50:21 -45.5 Dark Up 59.8 122.8 Up 04:35:21 - 05:05:21 8994
Manson/Chelan 04:50:32 -45.4 Dark Up 59.7 122.1 Up 04:35:32 - 05:05:32 8979
Wenatchee 04:50:34 -45.4 Dark Up 59.8 121.1 Up 04:35:34 - 05:05:34 8937
Ellensburg 04:50:35 -45.4 Dark Up 59.9 120.2 Up 04:35:35 - 05:05:35 8903
Yakima 04:50:36 -45.5 Dark Up 60.1 119.6 Up 04:35:36 - 05:05:36 8864
Toppenish/White Swan 04:50:37 -45.7 Dark Up 60.3 119.5 Up 04:35:37 - 05:05:37 8839
Goldendale 04:50:38 -45.5 Dark Up 60.3 118.1 Up 04:35:38 - 05:05:38 8796
The Dalles 04:50:40 -45.3 Dark Up 60.2 117.3 Up 04:35:40 - 05:05:40 8782
PNWRO 04:50:32 -46.7 Dark Up 61.4 120.9 Up 04:35:32 - 05:05:32 8769
Maupin 04:50:40 -45.5 Dark Up 60.5 116.8 Up 04:35:40 - 05:05:40 8739
Sisters 04:50:43 -45.3 Dark Up 60.6 114.8 Up 04:35:43 - 05:05:43 8666
Bend 04:50:43 -45.6 Dark Up 60.8 114.7 Up 04:35:43 - 05:05:43 8636
Oregon Observatory 04:50:43 -45.5 Dark Up 60.8 114.3 Up 04:35:43 - 05:05:43 8622
North Lake 04:50:44 -46.0 Dark Up 61.4 113.9 Up 04:35:44 - 05:05:44 8546
Chiloquin 04:50:48 -45.4 Dark Up 61.1 111.6 Up 04:35:48 - 05:05:48 8503
Klamath Falls 04:50:48 -45.6 Dark Up 61.2 111.1 Up 04:35:48 - 05:05:48 8467
Lakeview 04:50:44 -46.6 Dark Up 62.2 112.7 Up 04:35:44 - 05:05:44 8427
Cedarville 04:50:45 -46.8 Dark Up 62.6 111.8 Up 04:35:45 - 05:05:45 8357
Fall River/Burney 04:50:49 -46.0 Dark Up 61.9 109.5 Up 04:35:49 - 05:05:49 8340
Susanville 04:50:49 -46.7 Dark Up 62.7 109.2 Up 04:35:49 - 05:05:49 8258
Greenville 04:50:50 -46.5 Dark Up 62.5 108.4 Up 04:35:50 - 05:05:50 8238
Gimple 04:50:49 -46.6 Dark Up 62.6 108.5 Up 04:35:49 - 05:05:49 8235
Quincy 04:50:50 -46.5 Dark Up 62.6 108.0 Up 04:35:50 - 05:05:50 8217
Portola 04:50:49 -46.9 Dark Up 63.0 108.3 Up 04:35:49 - 05:05:49 8192
Reno 04:50:47 -47.4 Dark Up 63.6 108.6 Up 04:35:47 - 05:05:47 8149
Carson City 04:50:48 -47.5 Dark Up 63.7 107.9 Up 04:35:48 - 05:05:48 8112
Gardnerville 04:50:47 -47.6 Dark Up 63.8 107.5 Up 04:35:47 - 05:05:47 8086
Yerington 04:50:46 -48.0 Dark Up 64.2 108.2 Up 04:35:46 - 05:05:46 8076
Hawthorne 04:50:45 -48.5 Dark Up 64.7 107.9 Up 04:35:45 - 05:05:45 8015
Lee Vining 04:50:48 -48.2 Dark Up 64.5 106.2 Up 04:35:48 - 05:05:48 7970
Tonopah 04:50:41 -49.6 Dark Up 65.9 108.5 Up 04:35:41 - 05:05:41 7932
Dunrhomin 04:49:58 -58.0 Dark Up 72.8 133.8 Up 04:34:58 - 05:04:58 7912
Bishop 04:50:47 -48.8 Dark Up 65.3 105.8 Up 04:35:47 - 05:05:47 7890
CU-SBO 04:49:59 -58.0 Dark Up 72.9 132.9 Up 04:34:59 - 05:04:59 7887
Beatty 04:50:41 -50.1 Dark Up 66.6 106.6 Up 04:35:41 - 05:05:41 7801
Indian Springs 04:50:39 -51.0 Dark Up 67.5 107.0 Up 04:35:39 - 05:05:39 7741
Henderson 04:50:37 -51.6 Dark Up 68.2 106.6 Up 04:35:37 - 05:05:37 7668
Patrick 04:50:34 -52.6 Dark Up 69.3 106.3 Up 04:35:34 - 05:05:34 7576
Laughlin/Bullhead City 04:50:37 -52.1 Dark Up 68.8 104.9 Up 04:35:37 - 05:05:37 7567
Kingman/Dolan Springs 04:50:36 -52.5 Dark Up 69.2 105.6 Up 04:35:36 - 05:05:36 7557
Wildwood 04:50:52 -48.9 Dark Up 65.8 98.6 Up 04:35:52 - 05:05:52 7556
Mohave Valley 04:50:38 -52.1 Dark Up 68.9 104.3 Up 04:35:38 - 05:05:38 7538
Lake Havasu City 04:50:37 -52.4 Dark Up 69.1 103.5 Up 04:35:37 - 05:05:37 7490
Idyllwild 04:50:47 -50.5 Dark Up 67.4 99.3 Up 04:35:47 - 05:05:47 7470
Parker 04:50:38 -52.4 Dark Up 69.3 102.6 Up 04:35:38 - 05:05:38 7453
Calipatria 04:50:44 -51.5 Dark Up 68.5 98.9 Up 04:35:44 - 05:05:44 7376
George/Scottsdale 04:50:21 -54.4 Dark Up 71.3 104.1 Up 04:35:21 - 05:05:21 7354
Yuma 04:50:41 -52.3 Dark Up 69.3 98.6 Up 04:35:41 - 05:05:41 7308

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 15VH165, (2028/12/23 04:49UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 11.71  76
3Iot Aur       04:56:59.6 +33:09:58  2.7  5.76  82
PPM 093846     04:52:47.2 +27:53:51  6.2  0.56  81
PPM 093894     04:55:34.5 +27:12:08  8.4  0.39  81
15VH165        04:54:10.9 +27:26:01 15.3        81
Positions are for J2000

Event circumstances last updated at 2022/06/02 23:01:46 UT

Marc W. Buie, Southwest Research Institute

RECON