RECON: TNO occultation with 579077

Event between (579077) 14LP28 and star GA0840:19891830 with event index number of 2557881

Geocentric closest approach at 2022/12/07 02:14:39 UTC

J2000 position of star is 22:15:45.4 -04:16:27
Equinox of date position of star is 22:16:56.3 -04:09:37
Stellar brightness G=12.2, use SENSEUP=16 with the MallinCam and and exposure time of 250 milli-seconds with the QHY174 camera.
Star is 88 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 39.3 AU from the Sun and 39.4 AU from the Earth.
The TNO is moving 11.3 km/sec on the sky relative to the star, or, 1.4 arcsec/hr.
The 1-sigma error in the time of the event is 216 seconds.
The 1-sigma cross-track error in the shadow position is 1486 km.
The sky-plane scale is 28611.3 km/arcsec.

The TNO has an absolute magnitude Hv=6.3
Diameter=332.7 km assuming a 5% albedo -- 29.8 sec chord
Diameter=135.8 km assuming a 30% albedo -- 12.2 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 579077, (2022/12/07 02:15UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:54.7 -29:30:01  1.2 27.22  90
Markab         23:05:54.3 +15:19:45  2.5 22.95  70
44 Aqr         22:18:18.3 -05:16:19  5.7  1.16  88
PPM 206121     22:15:03.1 -04:20:13  7.2  0.51  89
PPM 206151     22:16:24.6 -04:02:22  9.6  0.18  88
579077         22:16:56.9 -04:09:33 12.2        88
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 4.2 sigma about the mid-time.
The median site spacing is 18.9 km RECON observability=1.0 and success probability=26.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 02:17:20 -30.2 Dark Up 28.0 214.8 Low 02:02:20 - 02:32:20 1138
Kamloops 02:16:00 -20.9 Dark Up 33.5 198.7 Up 02:01:00 - 02:31:00 1049
Kelowna 02:16:07 -21.3 Dark Up 34.0 199.9 Up 02:01:07 - 02:31:07 997
Peachland 02:16:06 -21.1 Dark Up 34.2 199.6 Up 02:01:06 - 02:31:06 990
Summerland 02:16:07 -21.1 Dark Up 34.3 199.8 Up 02:01:07 - 02:31:07 980
Penticton 02:16:07 -21.2 Dark Up 34.3 199.9 Up 02:01:07 - 02:31:07 976
Oliver 02:16:08 -21.1 Dark Up 34.7 200.0 Up 02:01:08 - 02:31:08 953
Anarchist Mountain Observatory 02:16:10 -21.2 Dark Up 34.8 200.3 Up 02:01:10 - 02:31:10 942
Tonasket 02:16:10 -21.1 Dark Up 35.1 200.3 Up 02:01:10 - 02:31:10 921
Victoria 02:15:44 -18.5 Dark Up 36.1 195.4 Up 02:00:44 - 02:30:44 905
Okanogan 02:16:10 -21.0 Dark Up 35.5 200.2 Up 02:01:10 - 02:31:10 898
Brewster 02:16:09 -20.8 Dark Up 35.8 200.0 Up 02:01:09 - 02:31:09 880
Manson/Chelan 02:16:07 -20.5 Dark Up 36.0 199.6 Up 02:01:07 - 02:31:07 866
Wenatchee 02:16:07 -20.3 Dark Up 36.5 199.5 Up 02:01:07 - 02:31:07 833
Ellensburg 02:16:06 -20.1 Dark Up 37.0 199.3 Up 02:01:06 - 02:31:06 805
Yakima 02:16:07 -20.0 Dark Up 37.3 199.4 Up 02:01:07 - 02:31:07 776
Toppenish/White Swan 02:16:09 -20.0 Dark Up 37.5 199.7 Up 02:01:09 - 02:31:09 761
PNWRO 02:16:13 -21.0 Dark Up 37.5 201.6 Up 02:01:13 - 02:31:13 741
Goldendale 02:16:07 -19.6 Dark Up 38.1 199.3 Up 02:01:07 - 02:31:07 722
The Dalles 02:16:05 -19.3 Dark Up 38.4 198.9 Up 02:01:05 - 02:31:05 705
Maupin 02:16:07 -19.3 Dark Up 38.8 199.1 Up 02:01:07 - 02:31:07 676
Sisters 02:16:05 -18.8 Dark Up 39.7 198.8 Up 02:01:05 - 02:31:05 612
Bend 02:16:07 -18.9 Dark Up 39.9 199.2 Up 02:01:07 - 02:31:07 594
Oregon Observatory 02:16:07 -18.8 Dark Up 40.1 199.0 Up 02:01:07 - 02:31:07 582
North Lake 02:16:12 -19.0 Dark Up 40.6 199.9 Up 02:01:12 - 02:31:12 535
Chiloquin 02:16:06 -18.1 Dark Up 41.5 198.9 Up 02:01:06 - 02:31:06 483
Lakeview 02:16:13 -19.2 Dark Up 41.4 201.0 Up 02:01:13 - 02:31:13 459
Klamath Falls 02:16:07 -18.1 Dark Up 41.8 199.1 Up 02:01:07 - 02:31:07 457
Cedarville 02:16:13 -19.1 Dark Up 42.0 201.4 Up 02:01:13 - 02:31:13 414
Fall River/Burney 02:16:12 -18.1 Dark Up 42.8 200.0 Up 02:01:12 - 02:31:12 366
Bishop 02:16:13 -19.5 Dark Up 45.3 205.3 Up 02:01:13 - 02:31:13 336
Hawthorne 02:16:13 -19.6 Dark Up 44.3 204.5 Up 02:01:13 - 02:31:13 328
Susanville 02:16:13 -18.5 Dark Up 43.2 201.1 Up 02:01:13 - 02:31:13 326
Yerington 02:16:13 -19.3 Dark Up 44.0 203.6 Up 02:01:13 - 02:31:13 306
Dunrhomin 02:18:10 -30.5 Dark Up 37.0 220.4 Up 02:03:10 - 02:33:10 305
Gimple 02:16:13 -18.3 Dark Up 43.5 201.0 Up 02:01:13 - 02:31:13 302
Greenville 02:16:13 -18.2 Dark Up 43.5 200.8 Up 02:01:13 - 02:31:13 300
Reno 02:16:13 -18.9 Dark Up 43.7 202.6 Up 02:01:13 - 02:31:13 296
Portola 02:16:13 -18.5 Dark Up 43.7 201.6 Up 02:01:13 - 02:31:13 288
Quincy 02:16:13 -18.2 Dark Up 43.7 200.9 Up 02:01:13 - 02:31:13 286
CU-SBO 02:18:10 -30.4 Dark Up 37.3 220.5 Up 02:03:10 - 02:33:10 285
Lee Vining 02:16:13 -19.1 Dark Up 45.0 204.1 Up 02:01:13 - 02:31:13 281
Carson City 02:16:13 -18.8 Dark Up 44.1 202.7 Up 02:01:13 - 02:31:13 278
Gardnerville 02:16:13 -18.8 Dark Up 44.3 202.9 Up 02:01:13 - 02:31:13 269
Tonopah 02:16:50 -20.7 Dark Up 44.2 206.8 Up 02:01:50 - 02:31:50 132
Beatty 02:16:56 -20.8 Dark Up 45.0 207.9 Up 02:01:56 - 02:31:56 36
Indian Springs 02:17:05 -21.6 Dark Up 44.9 209.5 Up 02:02:05 - 02:32:05 9
Henderson 02:17:12 -22.0 Dark Up 45.1 210.7 Up 02:02:12 - 02:32:12 -36
Patrick 02:17:22 -22.8 Dark Up 45.1 212.5 Up 02:02:22 - 02:32:22 -89
Kingman/Dolan Springs 02:17:21 -22.6 Dark Up 45.4 212.4 Up 02:02:21 - 02:32:21 -108
Laughlin/Bullhead City 02:17:17 -22.2 Dark Up 45.6 211.7 Up 02:02:17 - 02:32:17 -110
Mohave Valley 02:17:18 -22.1 Dark Up 45.9 211.9 Up 02:02:18 - 02:32:18 -133
Lake Havasu City 02:17:21 -22.2 Dark Up 46.1 212.5 Up 02:02:21 - 02:32:21 -168
Parker 02:17:22 -22.2 Dark Up 46.4 212.7 Up 02:02:22 - 02:32:22 -198
Wildwood 02:16:48 -18.6 Dark Up 48.2 206.8 Up 02:01:48 - 02:31:48 -204
Idyllwild 02:17:03 -20.1 Dark Up 47.8 209.6 Up 02:02:03 - 02:32:03 -234
George/Scottsdale 02:17:42 -24.1 Dark Up 45.5 216.1 Up 02:02:42 - 02:32:42 -235
Calipatria 02:17:14 -20.9 Dark Up 47.8 211.6 Up 02:02:14 - 02:32:14 -287
Yuma 02:17:22 -21.6 Dark Up 47.7 213.1 Up 02:02:22 - 02:32:22 -325

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 579077, (2022/12/07 02:15UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 27.22  90
Markab         23:04:45.8 +15:12:18  2.5 22.95  70
44 Aqr         22:17:06.5 -05:23:13  5.7  1.16  88
PPM 206121     22:13:51.5 -04:27:05  7.2  0.51  89
PPM 206151     22:15:13.1 -04:09:14  9.6  0.18  88
579077         22:15:45.4 -04:16:27 12.2        88
Positions are for J2000

Event circumstances last updated at 2022/10/03 04:13:38 UT

Marc W. Buie, Southwest Research Institute

RECON