RECON: TNO occultation with 15VR164

Event between 15VR164 and star GA1100:00644560 with event index number of 2724791

Geocentric closest approach at 2022/12/15 09:21:53 UTC

J2000 position of star is 04:28:28.9 +20:53:02
Equinox of date position of star is 04:29:46.6 +20:55:52
Stellar brightness G=17.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 94 degrees from the moon. Moon is 60% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 31.3 AU from the Sun and 30.3 AU from the Earth.
The TNO is moving 23.4 km/sec on the sky relative to the star, or, 3.8 arcsec/hr.
The 1-sigma error in the time of the event is 74 seconds.
The 1-sigma cross-track error in the shadow position is 1161 km.
The sky-plane scale is 21996.0 km/arcsec.

The TNO has an absolute magnitude Hv=8.0
Diameter=150.7 km assuming a 5% albedo -- 6.4 sec chord
Diameter=61.5 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 15VR164, (2022/12/15 09:22UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:14.4 +16:33:13  0.8  4.72  93
44Zet Per      03:55:34.8 +31:57:00  2.8 13.41  98
PPM 093535     04:29:22.7 +21:40:09  5.9  0.74  94
PPM 093543     04:30:03.4 +20:43:36  8.1  0.21  94
PPM 093542     04:29:59.0 +20:52:51  9.1  0.06  94
15VR164        04:29:50.3 +20:56:00 17.0        93
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 26.0 km RECON observability=1.0 and success probability=1.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 09:19:22 -50.6 Dark Up 40.1 251.2 Up 09:12:44 - 09:26:00 5858
Kamloops 09:19:51 -58.2 Dark Up 48.7 237.4 Up 09:13:13 - 09:26:29 5585
Kelowna 09:19:47 -58.4 Dark Up 48.7 239.2 Up 09:13:09 - 09:26:25 5512
Peachland 09:19:48 -58.7 Dark Up 48.9 239.0 Up 09:13:10 - 09:26:26 5499
Summerland 09:19:47 -58.7 Dark Up 48.9 239.2 Up 09:13:09 - 09:26:25 5485
Penticton 09:19:47 -58.7 Dark Up 48.9 239.4 Up 09:13:09 - 09:26:25 5479
Oliver 09:19:47 -59.0 Dark Up 49.1 239.8 Up 09:13:09 - 09:26:25 5445
Anarchist Mountain Observatory 09:19:46 -59.0 Dark Up 49.1 240.2 Up 09:13:08 - 09:26:24 5430
Tonasket 09:19:45 -59.3 Dark Up 49.3 240.4 Up 09:13:07 - 09:26:23 5399
Okanogan 09:19:45 -59.6 Dark Up 49.5 240.6 Up 09:13:07 - 09:26:23 5364
Victoria 09:19:56 -61.1 Dark Up 51.6 236.0 Up 09:13:18 - 09:26:34 5355
Brewster 09:19:45 -59.9 Dark Up 49.8 240.6 Up 09:13:07 - 09:26:23 5336
Manson/Chelan 09:19:46 -60.2 Dark Up 50.1 240.4 Up 09:13:08 - 09:26:24 5312
Wenatchee 09:19:46 -60.7 Dark Up 50.4 240.7 Up 09:13:08 - 09:26:24 5264
Ellensburg 09:19:46 -61.1 Dark Up 50.7 240.9 Up 09:13:08 - 09:26:24 5221
Yakima 09:19:45 -61.4 Dark Up 51.0 241.3 Up 09:13:07 - 09:26:23 5180
Toppenish/White Swan 09:19:44 -61.5 Dark Up 51.0 241.8 Up 09:13:06 - 09:26:22 5160
Pasco 09:19:41 -60.9 Dark Up 50.2 243.3 Up 09:13:03 - 09:26:19 5157
PNWRO 09:19:40 -61.0 Dark Up 50.2 243.8 Up 09:13:02 - 09:26:18 5134
Goldendale 09:19:45 -62.1 Dark Up 51.5 241.9 Up 09:13:07 - 09:26:23 5101
The Dalles 09:19:46 -62.4 Dark Up 51.8 241.7 Up 09:13:08 - 09:26:24 5075
Maupin 09:19:45 -62.7 Dark Up 51.9 242.3 Up 09:13:07 - 09:26:23 5034
Redmond 09:19:44 -63.4 Dark Up 52.4 243.2 Up 09:13:06 - 09:26:22 4941
Sisters 09:19:45 -63.5 Dark Up 52.7 242.8 Up 09:13:07 - 09:26:23 4941
Bend 09:19:44 -63.6 Dark Up 52.6 243.3 Up 09:13:06 - 09:26:22 4918
Oregon Observatory 09:19:44 -63.8 Dark Up 52.8 243.4 Up 09:13:06 - 09:26:22 4900
La Pine/Gilchrist 09:19:45 -64.0 Dark Up 52.9 243.6 Up 09:13:07 - 09:26:23 4878
North Lake 09:19:41 -64.0 Dark Up 52.7 244.7 Up 09:13:03 - 09:26:19 4838
Paisley 09:19:40 -64.1 Dark Up 52.7 245.8 Up 09:13:02 - 09:26:18 4783
Chiloquin 09:19:44 -64.9 Dark Up 53.6 244.5 Up 09:13:06 - 09:26:22 4761
Lakeview 09:19:39 -64.4 Dark Up 52.8 246.6 Up 09:13:01 - 09:26:17 4732
Klamath Falls 09:19:43 -65.1 Dark Up 53.7 245.0 Up 09:13:05 - 09:26:21 4726
Dunrhomin 09:18:55 -55.5 Dark Up 42.4 261.9 Up 09:12:17 - 09:25:33 4711
Cedarville 09:19:38 -64.7 Dark Up 52.9 247.6 Up 09:13:00 - 09:26:16 4665
Fall River/Burney 09:19:40 -65.7 Dark Up 53.9 246.9 Up 09:13:02 - 09:26:18 4606
Susanville 09:19:37 -65.7 Dark Up 53.7 248.4 Up 09:12:59 - 09:26:15 4545
Gimple 09:19:38 -66.0 Dark Up 53.9 248.6 Up 09:13:00 - 09:26:16 4514
Greenville 09:19:38 -66.0 Dark Up 54.0 248.5 Up 09:13:00 - 09:26:16 4514
Quincy 09:19:38 -66.2 Dark Up 54.0 248.8 Up 09:13:00 - 09:26:16 4493
Portola 09:19:36 -65.9 Dark Up 53.7 249.4 Up 09:12:58 - 09:26:14 4483
Reno 09:19:34 -65.7 Dark Up 53.4 250.4 Up 09:12:56 - 09:26:12 4461
Carson City 09:19:33 -65.9 Dark Up 53.5 250.8 Up 09:12:55 - 09:26:11 4423
Yerington 09:19:31 -65.6 Dark Up 53.1 251.7 Up 09:12:53 - 09:26:09 4408
Gardnerville 09:19:33 -66.0 Dark Up 53.5 251.2 Up 09:12:55 - 09:26:11 4398
Hawthorne 09:19:29 -65.5 Dark Up 52.8 252.8 Up 09:12:51 - 09:26:07 4363
Tonopah 09:19:25 -64.8 Dark Up 51.9 254.6 Up 09:12:47 - 09:26:03 4327
Lee Vining 09:19:30 -66.1 Dark Up 53.4 253.0 Up 09:12:52 - 09:26:08 4299
Bishop 09:19:27 -66.0 Dark Up 53.0 254.5 Up 09:12:49 - 09:26:05 4242
Beatty 09:19:22 -65.0 Dark Up 51.9 256.4 Up 09:12:44 - 09:26:00 4209
Indian Springs 09:19:18 -64.4 Dark Up 51.1 257.7 Up 09:12:40 - 09:25:56 4186
Henderson 09:19:15 -64.1 Dark Up 50.7 258.9 Up 09:12:37 - 09:25:53 4137
Patrick 09:19:11 -63.5 Dark Up 49.9 260.5 Up 09:12:33 - 09:25:49 4083
Kingman/Dolan Springs 09:19:11 -63.7 Dark Up 50.1 260.6 Up 09:12:33 - 09:25:49 4057
Laughlin/Bullhead City 09:19:13 -64.1 Dark Up 50.5 260.3 Up 09:12:35 - 09:25:51 4048
Mohave Valley 09:19:13 -64.2 Dark Up 50.6 260.6 Up 09:12:35 - 09:25:51 4019
CPSLO 09:19:32 -68.5 Dark Up 55.3 255.2 Up 09:12:54 - 09:26:10 4002
Lake Havasu City 09:19:11 -64.2 Dark Up 50.4 261.2 Up 09:12:33 - 09:25:49 3979
Parker 09:19:11 -64.2 Dark Up 50.4 261.7 Up 09:12:33 - 09:25:49 3942
George/Scottsdale 09:19:04 -62.4 Dark Up 48.5 263.8 Up 09:12:26 - 09:25:42 3927
Wildwood 09:19:25 -67.6 Dark Up 53.9 258.6 Up 09:12:47 - 09:26:03 3890
Blythe 09:19:11 -64.6 Dark Up 50.8 262.1 Up 09:12:33 - 09:25:49 3882
Idyllwild 09:19:18 -66.3 Dark Up 52.5 260.5 Up 09:12:40 - 09:25:56 3871
Calipatria 09:19:14 -65.5 Dark Up 51.6 262.1 Up 09:12:36 - 09:25:52 3818
Yuma 09:19:11 -64.9 Dark Up 50.9 263.2 Up 09:12:33 - 09:25:49 3782

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 15VR164, (2022/12/15 09:22UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8  4.72  93
44Zet Per      03:54:07.9 +31:53:01  2.8 13.41  98
PPM 093535     04:28:00.9 +21:37:10  5.9  0.74  94
PPM 093543     04:28:42.2 +20:40:39  8.1  0.21  94
PPM 093542     04:28:37.7 +20:49:54  9.1  0.06  94
15VR164        04:28:28.9 +20:53:02 17.0        94
Positions are for J2000

Event circumstances last updated at 2021/12/02 01:11:44 UT

Marc W. Buie, Southwest Research Institute

RECON