RECON: TNO occultation with 09YG19

Event between 09YG19 and star GA1120:01470416 with event index number of 2075375

Geocentric closest approach at 2022/12/14 02:29:32 UTC

J2000 position of star is 05:47:58.0 +22:17:44
Equinox of date position of star is 05:49:20.4 +22:18:06
Stellar brightness G=13.7, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 60 degrees from the moon. Moon is 71% illuminated.
TNO apparent brightness V=21.7

[RECON map]
TNO is 36.2 AU from the Sun and 35.2 AU from the Earth.
The TNO is moving 24.5 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 129 seconds.
The 1-sigma cross-track error in the shadow position is 1381 km.
The sky-plane scale is 25558.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.1
Diameter=356.5 km assuming a 5% albedo -- 14.5 sec chord
Diameter=145.5 km assuming a 30% albedo -- 5.9 sec chord
Dynamical classification is 5:2EEE
 
 
 
 
 
 

Star training set for 09YG19, (2022/12/14 02:30UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:24.9 +07:24:34  0.4 14.99  61
Alnath         05:27:44.7 +28:37:29  1.6  7.98  64
PPM 094739     05:44:43.2 +23:12:47  5.9  1.40  61
PPM 094790     05:46:18.8 +21:28:08  8.5  1.09  61
PPM 094869     05:48:38.3 +22:32:08  8.7  0.29  60
PPM 094887     05:49:19.5 +22:13:54 11.0  0.07  60
09YG19         05:49:21.2 +22:18:06 13.7        60
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 52.9 km RECON observability=0.2 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 02:32:19 -23.4 Dark Down 19.2 78.0 Really Low 02:21:06 - 02:43:32 10446
Victoria 02:32:27 -21.1 Dark Down 16.8 75.1 Really Low 02:21:14 - 02:43:40 10383
Peachland 02:32:21 -23.6 Dark Down 19.4 78.1 Really Low 02:21:08 - 02:43:34 10367
Kelowna 02:32:22 -23.8 Dark Down 19.6 78.3 Really Low 02:21:09 - 02:43:35 10367
Summerland 02:32:22 -23.7 Dark Down 19.4 78.1 Really Low 02:21:09 - 02:43:35 10354
Penticton 02:32:22 -23.7 Dark Down 19.5 78.2 Really Low 02:21:09 - 02:43:35 10346
Oliver 02:32:24 -23.7 Dark Down 19.4 78.0 Really Low 02:21:11 - 02:43:37 10322
Anarchist Mountain Observatory 02:32:24 -23.8 Dark Down 19.5 78.1 Really Low 02:21:11 - 02:43:37 10305
Tonasket 02:32:25 -23.7 Dark Down 19.4 78.0 Really Low 02:21:12 - 02:43:38 10285
Okanogan 02:32:27 -23.6 Dark Down 19.2 77.7 Really Low 02:21:14 - 02:43:40 10265
Brewster 02:32:28 -23.4 Dark Down 19.1 77.5 Really Low 02:21:15 - 02:43:41 10252
Manson/Chelan 02:32:28 -23.1 Dark Down 18.8 77.2 Really Low 02:21:15 - 02:43:41 10247
Wenatchee 02:32:30 -22.9 Dark Down 18.6 76.9 Really Low 02:21:17 - 02:43:43 10218
Ellensburg 02:32:31 -22.7 Dark Down 18.3 76.6 Really Low 02:21:18 - 02:43:44 10195
Sleaford 02:32:07 -32.4 Dark Down 28.3 89.4 Low 02:20:54 - 02:43:20 10172
Yakima 02:32:32 -22.6 Dark Down 18.2 76.5 Really Low 02:21:19 - 02:43:45 10166
Toppenish/White Swan 02:32:33 -22.7 Dark Down 18.3 76.6 Really Low 02:21:20 - 02:43:46 10145
Goldendale 02:32:35 -22.3 Dark Down 17.9 76.1 Really Low 02:21:22 - 02:43:48 10117
The Dalles 02:32:36 -22.0 Dark Down 17.6 75.8 Really Low 02:21:23 - 02:43:49 10111
Maupin 02:32:37 -22.0 Dark Down 17.5 75.7 Really Low 02:21:24 - 02:43:50 10077
PNWRO 02:32:34 -23.7 Dark Down 19.2 77.4 Really Low 02:21:21 - 02:43:47 10074
Sisters 02:32:40 -21.5 Dark Down 17.0 75.2 Really Low 02:21:27 - 02:43:53 10027
Bend 02:32:41 -21.6 Dark Down 17.1 75.3 Really Low 02:21:28 - 02:43:54 10001
Oregon Observatory 02:32:41 -21.5 Dark Down 17.0 75.1 Really Low 02:21:28 - 02:43:54 9992
North Lake 02:32:44 -21.8 Dark Down 17.2 75.3 Really Low 02:21:31 - 02:43:57 9927
Chiloquin 02:32:46 -20.9 Dark Down 16.3 74.5 Really Low 02:21:33 - 02:43:59 9905
Klamath Falls 02:32:47 -20.9 Dark Down 16.3 74.4 Really Low 02:21:34 - 02:44:00 9876
Lakeview 02:32:47 -22.0 Dark Down 17.3 75.3 Really Low 02:21:34 - 02:44:00 9828
Fall River/Burney 02:32:50 -21.0 Dark Down 16.3 74.4 Really Low 02:21:37 - 02:44:03 9771
Cedarville 02:32:48 -22.0 Dark Down 17.3 75.2 Really Low 02:21:35 - 02:44:01 9771
Susanville 02:32:52 -21.4 Dark Down 16.7 74.6 Really Low 02:21:39 - 02:44:05 9698
Greenville 02:32:54 -21.1 Dark Down 16.4 74.4 Really Low 02:21:41 - 02:44:07 9685
Gimple 02:32:53 -21.2 Dark Down 16.4 74.4 Really Low 02:21:40 - 02:44:06 9682
Quincy 02:32:54 -21.1 Dark Down 16.3 74.3 Really Low 02:21:41 - 02:44:07 9668
Portola 02:32:54 -21.4 Dark Down 16.6 74.6 Really Low 02:21:41 - 02:44:07 9643
Reno 02:32:54 -21.8 Dark Down 17.1 74.9 Really Low 02:21:41 - 02:44:07 9600
Carson City 02:32:55 -21.8 Dark Down 17.0 74.8 Really Low 02:21:42 - 02:44:08 9570
Gardnerville 02:32:56 -21.7 Dark Down 17.0 74.7 Really Low 02:21:43 - 02:44:09 9549
Yerington 02:32:55 -22.2 Dark Down 17.4 75.1 Really Low 02:21:42 - 02:44:08 9534
Hawthorne 02:32:57 -22.5 Dark Down 17.7 75.2 Really Low 02:21:44 - 02:44:10 9478
Lee Vining 02:32:58 -22.0 Dark Down 17.2 74.8 Really Low 02:21:45 - 02:44:11 9447
Tonopah 02:32:58 -23.5 Dark Down 18.7 75.9 Really Low 02:21:45 - 02:44:11 9392
Bishop 02:33:00 -22.4 Dark Down 17.6 75.0 Really Low 02:21:47 - 02:44:13 9373
Beatty 02:33:00 -23.6 Dark Down 18.7 75.7 Really Low 02:21:47 - 02:44:13 9278
Indian Springs 02:33:01 -24.4 Dark Down 19.5 76.2 Really Low 02:21:48 - 02:44:14 9214
Dunrhomin 02:32:42 -33.0 Dark Down 28.2 83.7 Low 02:21:29 - 02:43:55 9196
CU-SBO 02:32:43 -32.9 Dark Down 28.1 83.5 Low 02:21:30 - 02:43:56 9177
Henderson 02:33:02 -24.8 Dark Down 19.9 76.4 Really Low 02:21:49 - 02:44:15 9144
Wildwood 02:33:09 -21.5 Dark Down 16.6 74.0 Really Low 02:21:56 - 02:44:22 9098
Laughlin/Bullhead City 02:33:04 -25.0 Dark Down 20.0 76.3 Low 02:21:51 - 02:44:17 9054
Patrick 02:33:03 -25.6 Dark Down 20.7 76.7 Low 02:21:50 - 02:44:16 9051
Kingman/Dolan Springs 02:33:04 -25.4 Dark Down 20.5 76.6 Low 02:21:51 - 02:44:17 9038
Mohave Valley 02:33:05 -24.9 Dark Down 20.0 76.2 Really Low 02:21:52 - 02:44:18 9029
Idyllwild 02:33:09 -23.0 Dark Down 18.0 74.8 Really Low 02:21:56 - 02:44:22 9001
Lake Havasu City 02:33:06 -25.1 Dark Down 20.1 76.2 Low 02:21:53 - 02:44:19 8985
Parker 02:33:06 -25.0 Dark Down 20.0 76.1 Low 02:21:53 - 02:44:19 8953
Calipatria 02:33:09 -23.8 Dark Down 18.8 75.1 Really Low 02:21:56 - 02:44:22 8905
Yuma 02:33:10 -24.4 Dark Down 19.4 75.4 Really Low 02:21:57 - 02:44:23 8835
George/Scottsdale 02:33:06 -26.9 Dark Down 21.9 77.1 Low 02:21:53 - 02:44:19 8831

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 09YG19, (2022/12/14 02:30UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 14.99  61
Alnath         05:26:17.6 +28:36:23  1.6  7.98  64
PPM 094739     05:43:19.5 +23:12:15  5.9  1.40  61
PPM 094790     05:44:56.2 +21:27:39  8.5  1.09  61
PPM 094869     05:47:15.0 +22:31:44  8.7  0.29  60
PPM 094887     05:47:56.4 +22:13:31 11.0  0.07  60
09YG19         05:47:58.0 +22:17:44 13.7        60
Positions are for J2000

Event circumstances last updated at 2022/10/01 04:17:47 UT

Marc W. Buie, Southwest Research Institute

RECON