RECON: TNO occultation with 03QX111

Event between 03QX111 and star GA0900:00115903 with event index number of 1548988

Geocentric closest approach at 2022/01/30 02:49:09 UTC

J2000 position of star is 01:21:30.5 +01:34:20
Equinox of date position of star is 01:22:37.7 +01:41:08
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 98 degrees from the moon. Moon is 6% illuminated.
TNO apparent brightness V=23.3

[RECON map]
TNO is 41.6 AU from the Sun and 42.0 AU from the Earth.
The TNO is moving 15.0 km/sec on the sky relative to the star, or, 1.8 arcsec/hr.
The 1-sigma error in the time of the event is 202 seconds.
The 1-sigma cross-track error in the shadow position is 3184 km.
The sky-plane scale is 30429.1 km/arcsec.

The TNO has an absolute magnitude Hv=6.9
Diameter=237.7 km assuming a 5% albedo -- 16.6 sec chord
Diameter=97.0 km assuming a 30% albedo -- 6.8 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 03QX111, (2022/01/30 02:49UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:51.9 -29:30:17  1.2 46.39  54
68Omi Cet      02:20:27.8 -02:52:42  2.0 15.15 109
42 Cet         01:20:56.2 -00:23:36  6.5  2.12  97
PPM 144592     01:26:28.5 +01:34:29  8.0  0.96  99
PPM 144533     01:24:05.1 +01:51:19 10.0  0.40  98
PPM 144505     01:22:07.1 +01:19:26 10.9  0.39  98
03QX111        01:22:38.7 +01:41:14 16.9        98
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 4.5 sigma about the mid-time.
The median site spacing is 24.8 km RECON observability=1.0 and success probability=8.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 02:54:01 -20.4 Dark Down 33.8 221.1 Up 02:39:01 - 03:09:01 -4327
Victoria 02:53:45 -17.6 AT Down 36.9 217.2 Up 02:38:45 - 03:08:45 -4341
Kelowna 02:54:00 -20.3 Dark Down 34.2 221.1 Up 02:39:00 - 03:09:00 -4356
Peachland 02:54:00 -20.1 Dark Down 34.4 220.9 Up 02:39:00 - 03:09:00 -4356
Summerland 02:54:00 -20.1 Dark Down 34.4 221.0 Up 02:39:00 - 03:09:00 -4372
Penticton 02:54:00 -20.2 Dark Down 34.4 221.2 Up 02:39:00 - 03:09:00 -4381
Oliver 02:54:00 -20.2 Dark Down 34.7 221.3 Up 02:39:00 - 03:09:00 -4412
Anarchist Mountain Observatory 02:54:01 -20.3 Dark Down 34.8 221.6 Up 02:39:01 - 03:09:01 -4433
Tonasket 02:54:00 -20.2 Dark Down 35.0 221.7 Up 02:39:00 - 03:09:00 -4458
Okanogan 02:53:59 -20.1 Dark Down 35.3 221.7 Up 02:38:59 - 03:08:59 -4483
Brewster 02:53:59 -20.0 Dark Down 35.6 221.6 Up 02:38:59 - 03:08:59 -4500
Manson/Chelan 02:53:57 -19.7 Dark Down 35.9 221.3 Up 02:38:57 - 03:08:57 -4506
Wenatchee 02:53:56 -19.5 Dark Down 36.4 221.3 Up 02:38:56 - 03:08:56 -4542
Ellensburg 02:53:55 -19.3 Dark Down 36.8 221.3 Up 02:38:55 - 03:08:55 -4571
Yakima 02:53:55 -19.3 Dark Down 37.1 221.4 Up 02:38:55 - 03:08:55 -4607
Toppenish/White Swan 02:53:55 -19.4 Dark Down 37.2 221.7 Up 02:38:55 - 03:08:55 -4632
Goldendale 02:53:53 -19.0 Dark Down 37.8 221.5 Up 02:38:53 - 03:08:53 -4666
The Dalles 02:53:52 -18.7 Dark Down 38.1 221.2 Up 02:38:52 - 03:08:52 -4674
Pasco 02:54:01 -20.3 Dark Down 36.7 223.2 Up 02:39:01 - 03:09:01 -4687
Maupin 02:53:52 -18.8 Dark Down 38.4 221.6 Up 02:38:52 - 03:08:52 -4715
PNWRO 02:54:01 -20.4 Dark Down 36.7 223.6 Up 02:39:01 - 03:09:01 -4716
Sisters 02:53:50 -18.3 Dark Down 39.3 221.5 Up 02:38:50 - 03:08:50 -4776
Redmond 02:53:51 -18.6 Dark Down 39.1 221.9 Up 02:38:51 - 03:08:51 -4793
Bend 02:53:51 -18.5 Dark Down 39.4 221.9 Up 02:38:51 - 03:08:51 -4807
Oregon Observatory 02:53:50 -18.3 Dark Down 39.6 221.8 Up 02:38:50 - 03:08:50 -4818
La Pine/Gilchrist 02:53:50 -18.3 Dark Down 39.7 221.9 Up 02:38:50 - 03:08:50 -4834
North Lake 02:53:51 -18.7 Dark Down 39.8 222.8 Up 02:38:51 - 03:08:51 -4895
Chiloquin 02:53:47 -17.9 AT Down 40.7 222.1 Up 02:38:47 - 03:08:47 -4921
Klamath Falls 02:53:47 -17.9 AT Down 41.0 222.4 Up 02:38:47 - 03:08:47 -4956
Paisley 02:53:53 -18.9 Dark Down 40.0 223.5 Up 02:38:53 - 03:08:53 -4959
Lakeview 02:53:53 -18.9 Dark Down 40.2 224.1 Up 02:38:53 - 03:08:53 -5013
Fall River/Burney 02:53:47 -18.0 AT Down 41.6 223.5 Up 02:38:47 - 03:08:47 -5078
Cedarville 02:53:53 -19.0 Dark Down 40.6 224.7 Up 02:38:53 - 03:08:53 -5080
Susanville 02:53:50 -18.5 Dark Down 41.7 224.8 Up 02:38:50 - 03:08:50 -5165
Greenville 02:53:48 -18.2 Dark Down 42.0 224.6 Up 02:38:48 - 03:08:48 -5179
Gimple 02:53:49 -18.3 Dark Down 42.0 224.7 Up 02:38:49 - 03:08:49 -5183
Quincy 02:53:48 -18.2 Dark Down 42.2 224.7 Up 02:38:48 - 03:08:48 -5198
Portola 02:53:50 -18.5 Dark Down 42.0 225.4 Up 02:38:50 - 03:08:50 -5228
Reno 02:53:53 -19.0 Dark Down 41.8 226.3 Up 02:38:53 - 03:08:53 -5278
Carson City 02:53:52 -19.0 Dark Down 42.1 226.5 Up 02:38:52 - 03:08:52 -5313
Gardnerville 02:53:52 -19.0 Dark Down 42.2 226.8 Up 02:38:52 - 03:08:52 -5338
Yerington 02:53:55 -19.4 Dark Down 41.8 227.4 Up 02:38:55 - 03:08:55 -5356
Hawthorne 02:53:57 -19.8 Dark Down 41.8 228.3 Up 02:38:57 - 03:08:57 -5420
Lee Vining 02:53:54 -19.3 Dark Down 42.5 228.1 Up 02:38:54 - 03:08:54 -5455
Tonopah 02:54:02 -20.9 Dark Down 41.3 230.1 Up 02:39:02 - 03:09:02 -5518
Bishop 02:53:56 -19.8 Dark Down 42.5 229.3 Up 02:38:56 - 03:08:56 -5540
CPSLO 02:53:43 -17.7 AT Down 45.2 228.3 Up 02:38:43 - 03:08:43 -5647
Beatty 02:54:02 -21.1 Dark Down 41.7 231.4 Up 02:39:02 - 03:09:02 -5647
Dunrhomin 02:54:49 -30.4 Dark Down 32.2 240.6 Up 02:39:49 - 03:09:49 -5710
Indian Springs 02:54:07 -21.9 Dark Down 41.2 232.8 Up 02:39:07 - 03:09:07 -5720
Henderson 02:54:09 -22.4 Dark Down 41.1 233.9 Up 02:39:09 - 03:09:09 -5799
Wildwood 02:53:50 -19.2 Dark Down 44.7 231.5 Up 02:38:50 - 03:08:50 -5847
Laughlin/Bullhead City 02:54:10 -22.7 Dark Down 41.3 234.9 Up 02:39:10 - 03:09:10 -5900
Patrick 02:54:13 -23.3 Dark Down 40.7 235.4 Up 02:39:13 - 03:09:13 -5902
Kingman/Dolan Springs 02:54:12 -23.1 Dark Down 41.0 235.4 Up 02:39:12 - 03:09:12 -5917
Mohave Valley 02:54:09 -22.6 Dark Down 41.5 235.1 Up 02:39:09 - 03:09:09 -5927
Idyllwild 02:53:58 -20.7 Dark Down 43.6 233.8 Up 02:38:58 - 03:08:58 -5958
Lake Havasu City 02:54:10 -22.8 Dark Down 41.5 235.6 Up 02:39:10 - 03:09:10 -5976
Parker 02:54:09 -22.8 Dark Down 41.7 235.9 Up 02:39:09 - 03:09:09 -6012
Blythe 02:54:07 -22.5 Dark Down 42.2 236.0 Up 02:39:07 - 03:09:07 -6053
Calipatria 02:54:03 -21.6 Dark Down 43.2 235.5 Up 02:39:03 - 03:09:03 -6065
Yuma 02:54:06 -22.3 Dark Down 42.8 236.7 Up 02:39:06 - 03:09:06 -6143
George/Scottsdale 02:54:19 -24.8 Dark Down 40.2 238.6 Up 02:39:19 - 03:09:19 -6146

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 03QX111, (2022/01/30 02:49UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 46.39  54
68Omi Cet      02:19:20.8 -02:58:45  2.0 15.15 109
42 Cet         01:19:48.4 -00:30:32  6.5  2.12  97
PPM 144592     01:25:20.3 +01:27:37  8.0  0.96  99
PPM 144533     01:22:56.9 +01:44:26 10.0  0.40  98
PPM 144505     01:20:59.0 +01:12:32 10.9  0.39  98
03QX111        01:21:30.5 +01:34:20 16.9        98
Positions are for J2000

Event circumstances last updated at 2021/10/03 01:37:41 UT

Marc W. Buie, Southwest Research Institute

RECON