RECON: TNO occultation with 469442

Event between (469442) 02GG166 and star GA0600:12413177 with event index number of 1103824

Geocentric closest approach at 2022/05/22 06:10:26 UTC

J2000 position of star is 16:58:13.4 -28:15:27
Equinox of date position of star is 16:59:37.1 -28:17:24
Stellar brightness G=12.9, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 68 degrees from the moon. Moon is 56% illuminated.
TNO apparent brightness V=20.4

[RECON map]
TNO is 16.5 AU from the Sun and 15.6 AU from the Earth.
The TNO is moving 19.8 km/sec on the sky relative to the star, or, 6.3 arcsec/hr.
The 1-sigma error in the time of the event is 55 seconds.
The 1-sigma cross-track error in the shadow position is 603 km.
The sky-plane scale is 11278.2 km/arcsec.

The TNO has an absolute magnitude Hv=8.2
Diameter=136.1 km assuming a 5% albedo -- 6.9 sec chord
Diameter=55.6 km assuming a 30% albedo -- 2.8 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 469442, (2022/05/22 06:10UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.0 -26:28:47  0.9  6.65  74
23Tau Sco      16:37:16.8 -28:15:38  2.8  4.92  73
PPM 295639     16:56:01.9 -30:37:19  6.5  2.46  68
PPM 266230     17:00:42.4 -28:29:35  8.1  0.31  67
PPM 266217     17:00:12.7 -28:29:53  8.9  0.24  68
469442         16:59:37.8 -28:17:25 12.9        67
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 0.0 km RECON observability=0.0 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)
Sleaford 06:12:04 -16.8 AT Down 6.1 155.8 Really Low 06:07:00 - 06:17:09 7686
Kamloops 06:12:33 -15.2 AT Down 2.8 143.9 Really Low 06:07:28 - 06:17:37 7365
Kelowna 06:12:33 -16.2 AT Down 3.8 144.6 Really Low 06:07:28 - 06:17:37 7359
Peachland 06:12:33 -16.2 AT Down 3.8 144.3 Really Low 06:07:28 - 06:17:37 7349
Penticton 06:12:33 -16.5 AT Down 4.0 144.5 Really Low 06:07:28 - 06:17:37 7347
Summerland 06:12:33 -16.4 AT Down 3.9 144.4 Really Low 06:07:28 - 06:17:37 7347
Oliver 06:12:33 -16.8 AT Down 4.3 144.5 Really Low 06:07:28 - 06:17:37 7335
Anarchist Mountain Observatory 06:12:33 -17.0 AT Down 4.5 144.6 Really Low 06:07:28 - 06:17:37 7335
Tonasket 06:12:33 -17.3 AT Down 4.8 144.6 Really Low 06:07:28 - 06:17:37 7322
Okanogan 06:12:33 -17.5 AT Down 5.0 144.4 Really Low 06:07:28 - 06:17:37 7308
Brewster 06:12:33 -17.7 AT Down 5.1 144.3 Really Low 06:07:28 - 06:17:37 7295
Dunrhomin 06:12:22 -28.5 Dark Down 17.1 155.5 Really Low 06:07:18 - 06:17:27 7291
CU-SBO 06:12:24 -28.7 Dark Down 17.3 155.4 Really Low 06:07:19 - 06:17:28 7278
Manson/Chelan 06:12:55 -17.8 AT Down 5.2 144.0 Really Low 06:07:50 - 06:17:59 7266
Wenatchee 06:12:57 -18.2 Dark Down 5.5 143.9 Really Low 06:07:53 - 06:18:02 7244
PNWRO 06:12:56 -19.9 Dark Down 7.2 144.9 Really Low 06:07:52 - 06:18:01 7224
Ellensburg 06:12:58 -18.5 Dark Down 5.8 143.7 Really Low 06:07:54 - 06:18:03 7222
Victoria 06:13:02 -16.3 AT Down 3.4 141.5 Really Low 06:07:57 - 06:18:06 7208
Yakima 06:13:00 -18.9 Dark Down 6.1 143.6 Really Low 06:07:55 - 06:18:04 7206
Toppenish/White Swan 06:13:00 -19.1 Dark Down 6.3 143.8 Really Low 06:07:55 - 06:18:04 7201
Goldendale 06:13:02 -19.5 Dark Down 6.6 143.4 Really Low 06:07:58 - 06:18:07 7168
The Dalles 06:13:04 -19.6 Dark Down 6.6 143.1 Really Low 06:07:59 - 06:18:08 7149
Maupin 06:13:05 -20.0 Dark Down 7.0 143.2 Really Low 06:08:01 - 06:18:10 7134
Sisters 06:13:08 -20.6 Dark Down 7.5 142.7 Really Low 06:08:04 - 06:18:13 7083
Bend 06:13:08 -20.9 Dark Down 7.8 142.9 Really Low 06:08:04 - 06:18:13 7080
Oregon Observatory 06:13:09 -21.0 Dark Down 7.9 142.8 Really Low 06:08:05 - 06:18:14 7069
North Lake 06:13:09 -21.8 Dark Down 8.6 143.2 Really Low 06:08:05 - 06:18:14 7055
Lakeview 06:13:10 -22.9 Dark Down 9.7 143.5 Really Low 06:08:06 - 06:18:15 7021
Chiloquin 06:13:14 -22.1 Dark Down 8.8 142.4 Really Low 06:08:10 - 06:18:19 6997
Cedarville 06:13:11 -23.5 Dark Down 10.3 143.6 Really Low 06:08:07 - 06:18:16 6994
Klamath Falls 06:13:15 -22.4 Dark Down 9.1 142.4 Really Low 06:08:10 - 06:18:19 6983
Fall River/Burney 06:13:16 -23.6 Dark Down 10.2 142.6 Really Low 06:08:12 - 06:18:21 6937
Susanville 06:13:16 -24.4 Dark Down 11.0 143.1 Really Low 06:08:11 - 06:18:20 6926
Gimple 06:13:17 -24.6 Dark Down 11.1 142.9 Really Low 06:08:12 - 06:18:21 6906
Reno 06:13:15 -25.4 Dark Down 12.1 143.6 Really Low 06:08:11 - 06:18:20 6906
Greenville 06:13:17 -24.5 Dark Down 11.1 142.8 Really Low 06:08:12 - 06:18:21 6904
Tonopah 06:13:10 -27.7 Dark Down 14.5 145.4 Really Low 06:08:06 - 06:18:15 6901
Portola 06:13:16 -25.0 Dark Down 11.6 143.1 Really Low 06:08:12 - 06:18:21 6901
Yerington 06:13:14 -26.2 Dark Down 12.8 144.0 Really Low 06:08:10 - 06:18:19 6896
Quincy 06:13:18 -24.7 Dark Down 11.3 142.8 Really Low 06:08:13 - 06:18:22 6894
Carson City 06:13:15 -25.8 Dark Down 12.4 143.6 Really Low 06:08:11 - 06:18:20 6888
Hawthorne 06:13:14 -26.8 Dark Down 13.5 144.4 Really Low 06:08:09 - 06:18:18 6887
Gardnerville 06:13:16 -26.0 Dark Down 12.6 143.6 Really Low 06:08:11 - 06:18:20 6877
Indian Springs 06:13:07 -29.5 Dark Down 16.4 146.4 Really Low 06:08:02 - 06:18:11 6863
Henderson 06:13:06 -30.2 Dark Down 17.1 146.8 Really Low 06:08:01 - 06:18:10 6852
Beatty 06:13:11 -28.9 Dark Down 15.6 145.6 Really Low 06:08:06 - 06:18:15 6852
Patrick 06:13:02 -31.1 Dark Down 18.2 147.6 Really Low 06:07:58 - 06:18:07 6848
Lee Vining 06:13:16 -27.1 Dark Down 13.7 143.9 Really Low 06:08:12 - 06:18:21 6844
Bishop 06:13:15 -27.9 Dark Down 14.5 144.4 Really Low 06:08:11 - 06:18:20 6831
Kingman/Dolan Springs 06:13:04 -31.3 Dark Down 18.3 147.4 Really Low 06:07:59 - 06:18:08 6830
Laughlin/Bullhead City 06:13:06 -31.1 Dark Down 18.1 147.0 Really Low 06:08:01 - 06:18:10 6815
George/Scottsdale 06:12:58 -33.3 Dark Down 20.5 148.9 Low 06:07:54 - 06:18:03 6804
Mohave Valley 06:13:06 -31.4 Dark Down 18.3 147.0 Really Low 06:08:01 - 06:18:10 6799
Lake Havasu City 06:13:06 -31.9 Dark Down 18.7 147.1 Really Low 06:08:02 - 06:18:11 6783
Parker 06:13:07 -32.2 Dark Down 19.0 147.1 Really Low 06:08:02 - 06:18:11 6764
Idyllwild 06:13:16 -31.8 Dark Down 18.3 145.1 Really Low 06:08:12 - 06:18:21 6674
Calipatria 06:13:13 -32.7 Dark Down 19.3 145.9 Really Low 06:08:09 - 06:18:18 6670
Yuma 06:13:11 -33.4 Dark Down 20.1 146.5 Low 06:08:06 - 06:18:15 6670
Wildwood 06:13:22 -30.8 Dark Down 17.1 143.7 Really Low 06:08:18 - 06:18:27 6640

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 469442, (2022/05/22 06:10UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  6.65  74
23Tau Sco      16:35:52.9 -28:12:58  2.8  4.92  73
PPM 295639     16:54:36.0 -30:35:14  6.5  2.46  68
PPM 266230     16:59:17.9 -28:27:39  8.1  0.31  67
PPM 266217     16:58:48.1 -28:27:56  8.9  0.24  68
469442         16:58:13.4 -28:15:27 12.9        68
Positions are for J2000

Event circumstances last updated at 2022/03/15 01:02:40 UT

Marc W. Buie, Southwest Research Institute

RECON