RECON: TNO occultation with 492338

Event between (492338) 14FW and star GA0660:22731329 with event index number of 2319932

Geocentric closest approach at 2022/07/19 05:11:10 UTC

J2000 position of star is 18:03:37.3 -22:06:23
Equinox of date position of star is 18:04:57.6 -22:06:15
Stellar brightness G=14.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 99 degrees from the moon. Moon is 64% illuminated.
TNO apparent brightness V=21.3

[RECON map]
TNO is 13.3 AU from the Sun and 12.3 AU from the Earth.
The TNO is moving 17.3 km/sec on the sky relative to the star, or, 7.0 arcsec/hr.
The 1-sigma error in the time of the event is 75 seconds.
The 1-sigma cross-track error in the shadow position is 537 km.
The sky-plane scale is 8951.1 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=59.4 km assuming a 5% albedo -- 3.4 sec chord
Diameter=24.3 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 492338, (2022/07/19 05:11UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.6 -26:28:48  0.9 21.87 120
Nunki          18:56:39.7 -26:16:00  2.0 12.49  87
PPM 267709     18:03:16.4 -22:46:45  5.8  0.78 100
PPM 267696     18:03:00.7 -22:07:50  7.9  0.46 100
PPM 267748     18:04:34.2 -22:02:08  9.6  0.12  99
492338         18:04:58.9 -22:06:15 14.6        99
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 14.6 km RECON observability=0.5 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 05:11:27 -8.6 NT Down 15.8 164.2 Really Low 05:04:44 - 05:18:10 4360
Kelowna 05:11:25 -9.6 NT Down 16.7 165.0 Really Low 05:04:42 - 05:18:08 4332
Peachland 05:11:27 -9.6 NT Down 16.8 164.7 Really Low 05:04:44 - 05:18:10 4330
Summerland 05:11:26 -9.7 NT Down 16.9 164.8 Really Low 05:04:43 - 05:18:09 4325
Sleaford 05:10:30 -12.5 AT Down 15.8 177.9 Really Low 05:03:47 - 05:17:13 4324
Penticton 05:11:26 -9.8 NT Down 17.0 164.9 Really Low 05:04:43 - 05:18:09 4322
Oliver 05:11:26 -10.1 NT Down 17.4 164.8 Really Low 05:04:43 - 05:18:09 4310
Anarchist Mountain Observatory 05:11:25 -10.3 NT Down 17.6 165.0 Really Low 05:04:42 - 05:18:08 4305
Victoria 05:11:43 -8.9 NT Down 17.3 161.2 Really Low 05:05:00 - 05:18:26 4294
Tonasket 05:11:27 -10.5 NT Down 17.8 164.9 Really Low 05:04:44 - 05:18:10 4294
Okanogan 05:11:28 -10.7 NT Down 18.1 164.8 Really Low 05:04:45 - 05:18:11 4283
Brewster 05:11:29 -10.8 NT Down 18.4 164.6 Really Low 05:04:46 - 05:18:12 4274
Manson/Chelan 05:11:31 -10.8 NT Down 18.5 164.2 Really Low 05:04:48 - 05:18:14 4267
Wenatchee 05:11:32 -11.1 NT Down 18.9 164.0 Really Low 05:04:49 - 05:18:15 4251
Ellensburg 05:11:34 -11.3 NT Down 19.3 163.7 Really Low 05:04:51 - 05:18:17 4236
Yakima 05:11:35 -11.6 NT Down 19.7 163.7 Really Low 05:04:52 - 05:18:18 4221
Toppenish/White Swan 05:11:34 -11.9 NT Down 19.9 163.8 Really Low 05:04:51 - 05:18:17 4212
PNWRO 05:11:28 -12.8 AT Down 20.6 165.2 Low 05:04:45 - 05:18:11 4194
Goldendale 05:11:37 -12.1 AT Down 20.4 163.4 Low 05:04:54 - 05:18:20 4192
The Dalles 05:11:38 -12.1 AT Down 20.5 163.0 Low 05:04:55 - 05:18:21 4183
Maupin 05:11:39 -12.4 AT Down 20.9 163.1 Low 05:04:56 - 05:18:22 4167
Sisters 05:11:43 -12.9 AT Down 21.7 162.5 Low 05:05:00 - 05:18:26 4132
Bend 05:11:42 -13.2 AT Down 22.0 162.7 Low 05:04:59 - 05:18:25 4121
Oregon Observatory 05:11:43 -13.2 AT Down 22.1 162.6 Low 05:05:00 - 05:18:26 4114
North Lake 05:11:42 -14.0 AT Down 22.8 163.0 Low 05:04:59 - 05:18:25 4086
Chiloquin 05:11:47 -14.0 AT Down 23.3 162.0 Low 05:05:04 - 05:18:30 4057
Klamath Falls 05:11:47 -14.3 AT Down 23.6 162.0 Low 05:05:04 - 05:18:30 4042
Lakeview 05:11:41 -15.0 AT Down 24.0 163.4 Low 05:04:58 - 05:18:24 4037
Cedarville 05:11:41 -15.6 AT Down 24.6 163.5 Low 05:04:58 - 05:18:24 4006
Fall River/Burney 05:11:47 -15.3 AT Down 24.8 162.3 Low 05:05:04 - 05:18:30 3986
Susanville 05:11:45 -16.2 AT Down 25.6 162.9 Low 05:05:02 - 05:18:28 3954
Greenville 05:11:47 -16.2 AT Down 25.8 162.6 Low 05:05:04 - 05:18:30 3941
Gimple 05:11:46 -16.3 AT Down 25.8 162.7 Low 05:05:03 - 05:18:29 3940
Quincy 05:11:48 -16.4 AT Down 26.0 162.5 Low 05:05:05 - 05:18:31 3931
Portola 05:11:45 -16.7 AT Down 26.2 163.0 Low 05:05:02 - 05:18:28 3924
Reno 05:11:43 -17.2 AT Down 26.6 163.6 Low 05:05:00 - 05:18:26 3908
Carson City 05:11:43 -17.5 AT Down 27.0 163.6 Low 05:05:00 - 05:18:26 3890
Yerington 05:11:41 -18.0 AT Down 27.3 164.2 Low 05:04:58 - 05:18:24 3878
Gardnerville 05:11:43 -17.7 AT Down 27.2 163.6 Low 05:05:00 - 05:18:26 3878
Hawthorne 05:11:38 -18.6 Dark Down 27.8 164.6 Low 05:04:55 - 05:18:21 3852
Dunrhomin 05:10:32 -23.2 Dark Down 27.6 178.5 Low 05:03:49 - 05:17:15 3841
CU-SBO 05:10:33 -23.3 Dark Down 27.9 178.4 Low 05:03:50 - 05:17:16 3829
Lee Vining 05:11:42 -18.8 Dark Down 28.3 164.1 Low 05:04:59 - 05:18:25 3825
Tonopah 05:11:33 -19.7 Dark Down 28.6 166.0 Low 05:04:50 - 05:18:16 3822
Bishop 05:11:39 -19.6 Dark Down 29.0 164.7 Low 05:04:56 - 05:18:22 3789
Beatty 05:11:32 -20.8 Dark Down 29.8 166.3 Low 05:04:49 - 05:18:15 3757
Indian Springs 05:11:27 -21.6 Dark Down 30.3 167.4 Up 05:04:44 - 05:18:10 3733
Henderson 05:11:24 -22.4 Dark Down 30.9 168.1 Up 05:04:41 - 05:18:07 3699
Patrick 05:11:19 -23.4 Dark Down 31.7 169.1 Up 05:04:36 - 05:18:02 3656
Laughlin/Bullhead City 05:11:23 -23.2 Dark Down 31.8 168.4 Up 05:04:40 - 05:18:06 3646
Kingman/Dolan Springs 05:11:20 -23.5 Dark Down 31.9 168.9 Up 05:04:37 - 05:18:03 3644
Mohave Valley 05:11:23 -23.5 Dark Down 32.1 168.4 Up 05:04:40 - 05:18:06 3630
Lake Havasu City 05:11:23 -23.9 Dark Down 32.5 168.6 Up 05:04:40 - 05:18:06 3605
Wildwood 05:11:45 -21.9 Dark Down 32.1 164.0 Up 05:05:02 - 05:18:28 3604
Parker 05:11:23 -24.2 Dark Down 32.9 168.6 Up 05:04:40 - 05:18:06 3583
Idyllwild 05:11:36 -23.2 Dark Down 32.9 165.9 Up 05:04:53 - 05:18:19 3574
George/Scottsdale 05:11:11 -25.7 Dark Down 33.7 171.1 Up 05:04:28 - 05:17:54 3540
Calipatria 05:11:30 -24.3 Dark Down 33.7 167.1 Up 05:04:47 - 05:18:13 3529
Yuma 05:11:26 -25.1 Dark Down 34.3 168.0 Up 05:04:43 - 05:18:09 3497

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 492338, (2022/07/19 05:11UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 21.87 120
Nunki          18:55:15.9 -26:17:49  2.0 12.49  87
PPM 267709     18:01:54.4 -22:46:50  5.8  0.78 100
PPM 267696     18:01:39.1 -22:07:55  7.9  0.46 100
PPM 267748     18:03:12.7 -22:02:16  9.6  0.12  99
492338         18:03:37.3 -22:06:23 14.6        99
Positions are for J2000

Event circumstances last updated at 2022/03/15 01:07:08 UT

Marc W. Buie, Southwest Research Institute

RECON