RECON: TNO occultation with 15VX164

Event between 15VX164 and star GA1040:00587906 with event index number of 2723925

Geocentric closest approach at 2023/01/27 02:18:01 UTC

J2000 position of star is 04:41:41.8 +15:21:56
Equinox of date position of star is 04:42:56.8 +15:24:22
Stellar brightness G=13.8, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 53 degrees from the moon. Moon is 34% illuminated.
TNO apparent brightness V=24.4

[RECON map]
TNO is 26.7 AU from the Sun and 26.2 AU from the Earth.
The TNO is moving 11.0 km/sec on the sky relative to the star, or, 2.1 arcsec/hr.
The 1-sigma error in the time of the event is 189 seconds.
The 1-sigma cross-track error in the shadow position is 1102 km.
The sky-plane scale is 18977.6 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=59.2 km assuming a 5% albedo -- 5.4 sec chord
Diameter=24.2 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 15VX164, (2023/01/27 02:18UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:14.8 +16:33:14  0.8  1.80  52
Bellatrix      05:26:22.2 +06:22:07  1.6 13.95  64
91Sig1Tau      04:40:28.4 +15:50:37  5.3  0.75  52
PPM 120174     04:44:19.3 +15:31:56  8.1  0.34  53
PPM 120140     04:42:38.8 +15:33:16  9.8  0.17  53
15VX164        04:43:00.7 +15:24:30 13.8        53
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 4.8 sigma about the mid-time.
The median site spacing is 28.4 km RECON observability=0.4 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 02:20:59 -15.3 AT Up 47.5 135.5 Up 02:05:59 - 02:35:59 8593
Sleaford 02:19:32 -24.2 Dark Up 51.3 155.9 Up 02:04:32 - 02:34:32 8591
Kelowna 02:20:57 -15.7 AT Up 48.5 136.0 Up 02:05:57 - 02:35:57 8512
Peachland 02:20:59 -15.5 AT Up 48.4 135.5 Up 02:05:59 - 02:35:59 8506
Summerland 02:20:58 -15.6 AT Up 48.6 135.5 Up 02:05:58 - 02:35:58 8491
Penticton 02:20:59 -15.6 AT Up 48.7 135.6 Up 02:05:59 - 02:35:59 8484
Oliver 02:20:59 -15.6 AT Up 48.9 135.3 Up 02:05:59 - 02:35:59 8453
Victoria 02:21:24 -13.0 AT Up 47.6 130.1 Up 02:06:24 - 02:36:24 8439
Anarchist Mountain Observatory 02:20:59 -15.7 AT Up 49.1 135.5 Up 02:05:59 - 02:35:59 8436
Tonasket 02:21:00 -15.6 AT Up 49.3 135.1 Up 02:06:00 - 02:36:00 8409
Okanogan 02:21:03 -15.4 AT Up 49.5 134.7 Up 02:06:03 - 02:36:03 8381
Brewster 02:21:06 -15.2 AT Up 49.6 134.2 Up 02:06:06 - 02:36:06 8358
Manson/Chelan 02:21:09 -15.0 AT Up 49.6 133.5 Up 02:06:09 - 02:36:09 8344
Wenatchee 02:21:10 -14.8 AT Up 49.8 132.9 Up 02:06:10 - 02:36:10 8303
Ellensburg 02:21:14 -14.5 AT Up 50.0 132.3 Up 02:06:14 - 02:36:14 8268
Yakima 02:21:16 -14.4 AT Up 50.3 131.9 Up 02:06:16 - 02:36:16 8231
Toppenish/White Swan 02:21:16 -14.5 AT Up 50.5 132.0 Up 02:06:16 - 02:36:16 8209
Pasco 02:21:08 -15.3 AT Up 51.2 133.5 Up 02:06:08 - 02:36:08 8183
Goldendale 02:21:20 -14.1 AT Up 50.6 130.9 Up 02:06:20 - 02:36:20 8164
PNWRO 02:21:07 -15.4 AT Up 51.5 133.5 Up 02:06:07 - 02:36:07 8158
The Dalles 02:21:24 -13.8 AT Up 50.6 130.3 Up 02:06:24 - 02:36:24 8147
Maupin 02:21:24 -13.8 AT Up 50.9 130.0 Up 02:06:24 - 02:36:24 8107
Sisters 02:21:31 -13.3 AT Up 51.2 128.6 Up 02:06:31 - 02:36:31 8032
Redmond 02:21:29 -13.6 AT Up 51.5 129.1 Up 02:06:29 - 02:36:29 8024
Bend 02:21:30 -13.4 AT Up 51.5 128.7 Up 02:06:30 - 02:36:30 8006
Oregon Observatory 02:21:31 -13.3 AT Up 51.6 128.3 Up 02:06:31 - 02:36:31 7992
La Pine/Gilchrist 02:21:33 -13.2 AT Up 51.7 128.1 Up 02:06:33 - 02:36:33 7973
North Lake 02:21:30 -13.5 AT Up 52.3 128.4 Up 02:06:30 - 02:36:30 7925
Chiloquin 02:21:40 -12.7 AT Up 52.1 126.5 Up 02:06:40 - 02:36:40 7873
Paisley 02:21:30 -13.7 AT Up 52.8 128.3 Up 02:06:30 - 02:36:30 7868
Klamath Falls 02:21:40 -12.7 AT Up 52.4 126.3 Up 02:06:40 - 02:36:40 7839
Lakeview 02:21:30 -13.7 AT Up 53.2 128.0 Up 02:06:30 - 02:36:30 7817
Cedarville 02:21:33 -13.7 AT Up 53.8 127.5 Up 02:06:33 - 02:36:33 7752
Fall River/Burney 02:21:42 -12.7 AT Up 53.3 125.5 Up 02:06:42 - 02:36:42 7721
Susanville 02:21:39 -13.1 AT Up 54.1 125.7 Up 02:06:39 - 02:36:39 7650
Greenville 02:21:42 -12.8 AT Up 54.1 125.1 Up 02:06:42 - 02:36:42 7627
Gimple 02:21:41 -12.9 AT Up 54.2 125.2 Up 02:06:41 - 02:36:41 7625
Quincy 02:21:42 -12.8 AT Up 54.2 124.8 Up 02:06:42 - 02:36:42 7607
Portola 02:21:39 -13.1 AT Up 54.6 125.3 Up 02:06:39 - 02:36:39 7589
Reno 02:21:36 -13.5 AT Up 55.2 125.8 Up 02:06:36 - 02:36:36 7554
Carson City 02:21:37 -13.5 AT Up 55.4 125.4 Up 02:06:37 - 02:36:37 7519
Gardnerville 02:21:38 -13.4 AT Up 55.6 125.2 Up 02:06:38 - 02:36:38 7494
Yerington 02:21:34 -13.9 AT Up 55.9 126.0 Up 02:06:34 - 02:36:34 7491
Dunrhomin 02:19:50 -24.4 Dark Up 62.1 148.9 Up 02:04:50 - 02:34:50 7473
Hawthorne 02:21:31 -14.2 AT Up 56.5 126.1 Up 02:06:31 - 02:36:31 7439
Lee Vining 02:21:36 -13.7 AT Up 56.5 124.8 Up 02:06:36 - 02:36:36 7389
Tonopah 02:21:23 -15.1 AT Up 57.6 127.4 Up 02:06:23 - 02:36:23 7375
Bishop 02:21:33 -14.1 AT Up 57.3 125.0 Up 02:06:33 - 02:36:33 7320
Beatty 02:21:22 -15.2 AT Up 58.6 126.5 Up 02:06:22 - 02:36:22 7253
Indian Springs 02:21:16 -16.0 AT Up 59.5 127.5 Up 02:06:16 - 02:36:16 7207
Henderson 02:21:13 -16.4 AT Up 60.3 127.8 Up 02:06:13 - 02:36:13 7144
CPSLO 02:21:55 -11.9 NT Up 56.9 119.5 Up 02:06:55 - 02:36:55 7142
Patrick 02:21:05 -17.2 AT Up 61.3 128.5 Up 02:06:05 - 02:36:05 7067
Laughlin/Bullhead City 02:21:12 -16.6 AT Up 61.0 127.2 Up 02:06:12 - 02:36:12 7050
Kingman/Dolan Springs 02:21:07 -17.0 AT Up 61.4 127.9 Up 02:06:07 - 02:36:07 7047
Mohave Valley 02:21:13 -16.5 AT Up 61.2 126.8 Up 02:06:13 - 02:36:13 7022
Wildwood 02:21:44 -13.2 AT Up 59.0 120.3 Up 02:06:44 - 02:36:44 6991
Lake Havasu City 02:21:11 -16.7 AT Up 61.6 126.5 Up 02:06:11 - 02:36:11 6978
Parker 02:21:12 -16.6 AT Up 61.8 126.1 Up 02:06:12 - 02:36:12 6941
Idyllwild 02:21:31 -14.6 AT Up 60.5 122.2 Up 02:06:31 - 02:36:31 6929
Blythe 02:21:15 -16.3 AT Up 62.0 124.8 Up 02:06:15 - 02:36:15 6891
George/Scottsdale 02:20:54 -18.5 Dark Up 63.7 129.1 Up 02:05:54 - 02:35:54 6870
Calipatria 02:21:23 -15.4 AT Up 61.6 122.8 Up 02:06:23 - 02:36:23 6851
Yuma 02:21:18 -16.1 AT Up 62.5 123.4 Up 02:06:18 - 02:36:18 6795

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 15VX164, (2023/01/27 02:18UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8  1.80  52
Bellatrix      05:25:07.8 +06:20:58  1.6 13.95  64
91Sig1Tau      04:39:09.2 +15:47:58  5.3  0.75  52
PPM 120174     04:43:00.2 +15:29:25  8.1  0.34  53
PPM 120140     04:41:19.7 +15:30:42  9.8  0.17  53
15VX164        04:41:41.8 +15:21:56 13.8        53
Positions are for J2000

Event circumstances last updated at 2021/12/02 01:16:52 UT

Marc W. Buie, Southwest Research Institute

RECON