RECON: TNO occultation with 558093

Event between (558093) 14WW535 and star GA0820:03921711 with event index number of 2414809

Geocentric closest approach at 2022/12/05 09:19:12 UTC

J2000 position of star is 09:54:20.3 -06:21:02
Equinox of date position of star is 09:55:25.6 -06:27:15
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 110 degrees from the moon. Moon is 93% illuminated.
TNO apparent brightness V=23.1

[RECON map]
TNO is 24.2 AU from the Sun and 24.0 AU from the Earth.
The TNO is moving 8.4 km/sec on the sky relative to the star, or, 1.7 arcsec/hr.
The 1-sigma error in the time of the event is 184 seconds.
The 1-sigma cross-track error in the shadow position is 4900 km.
The sky-plane scale is 17418.9 km/arcsec.

The TNO has an absolute magnitude Hv=9.0
Diameter=95.1 km assuming a 5% albedo -- 11.3 sec chord
Diameter=38.8 km assuming a 30% albedo -- 4.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 558093, (2022/12/05 09:19UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:35.5 +11:51:15  1.3 18.65 108
Alphard        09:28:42.9 -08:45:33  2.0  7.02 105
8Gam Sex       09:53:38.6 -08:12:50  4.8  1.81 110
PPM 192894     09:56:52.7 -06:15:59  8.5  0.40 111
PPM 192884     09:56:21.5 -06:46:12  9.4  0.38 111
558093         09:55:29.0 -06:27:35 15.4       111
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 4.9 sigma about the mid-time.
The median site spacing is 8.6 km RECON observability=0.4 and success probability=3.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
CPSLO 09:13:32 -68.2 Dark Up 22.4 116.0 Low 08:58:32 - 09:28:32 6648
Wildwood 09:13:41 -67.3 Dark Up 24.5 117.1 Low 08:58:41 - 09:28:41 6588
Idyllwild 09:13:43 -66.0 Dark Up 26.1 118.3 Low 08:58:43 - 09:28:43 6502
Quincy 09:12:38 -65.8 Dark Up 20.0 117.2 Really Low 08:57:38 - 09:27:38 6488
Lee Vining 09:12:56 -65.9 Dark Up 22.2 118.0 Low 08:57:56 - 09:27:56 6484
Greenville 09:12:36 -65.7 Dark Up 19.9 117.3 Really Low 08:57:36 - 09:27:36 6480
Gimple 09:12:35 -65.7 Dark Up 19.9 117.4 Really Low 08:57:35 - 09:27:35 6477
Gardnerville 09:12:52 -65.7 Dark Up 21.3 117.9 Low 08:57:52 - 09:27:52 6476
Portola 09:12:45 -65.6 Dark Up 20.4 117.6 Low 08:57:45 - 09:27:45 6473
Bishop 09:13:04 -65.7 Dark Up 23.0 118.4 Low 08:58:04 - 09:28:04 6471
Carson City 09:12:45 -65.6 Dark Up 21.1 117.9 Low 08:57:45 - 09:27:45 6468
Fall River/Burney 09:12:27 -65.4 Dark Up 19.1 117.2 Really Low 08:57:27 - 09:27:27 6461
Susanville 09:12:32 -65.4 Dark Up 19.9 117.6 Really Low 08:57:32 - 09:27:32 6456
Reno 09:12:43 -65.4 Dark Up 20.9 118.0 Low 08:57:43 - 09:27:43 6455
Calipatria 09:13:46 -65.3 Dark Up 27.2 119.0 Low 08:58:46 - 09:28:46 6454
Yerington 09:12:48 -65.3 Dark Up 21.7 118.3 Low 08:57:48 - 09:27:48 6447
Hawthorne 09:12:48 -65.3 Dark Up 22.3 118.6 Low 08:57:48 - 09:27:48 6440
Klamath Falls 09:12:16 -64.8 Dark Up 18.3 117.2 Really Low 08:57:16 - 09:27:16 6424
Yuma 09:13:48 -64.7 Dark Up 28.1 119.5 Low 08:58:48 - 09:28:48 6416
Chiloquin 09:12:12 -64.6 Dark Up 18.1 117.3 Really Low 08:57:12 - 09:27:12 6412
Beatty 09:13:02 -64.8 Dark Up 24.4 119.5 Low 08:58:02 - 09:28:02 6406
Blythe 09:13:37 -64.4 Dark Up 27.6 119.9 Low 08:58:37 - 09:28:37 6390
Tonopah 09:12:53 -64.6 Dark Up 23.5 119.5 Low 08:57:53 - 09:27:53 6389
Cedarville 09:12:19 -64.4 Dark Up 19.7 118.3 Really Low 08:57:19 - 09:27:19 6388
Lakeview 09:12:13 -64.1 Dark Up 19.3 118.3 Really Low 08:57:13 - 09:27:13 6367
Indian Springs 09:13:08 -64.2 Dark Up 25.3 120.2 Low 08:58:08 - 09:28:08 6361
Parker 09:13:30 -64.0 Dark Up 27.6 120.3 Low 08:58:30 - 09:28:30 6359
Mohave Valley 09:13:25 -64.0 Dark Up 27.0 120.4 Low 08:58:25 - 09:28:25 6353
Paisley 09:12:08 -63.8 Dark Up 18.9 118.3 Really Low 08:57:08 - 09:27:08 6353
Lake Havasu City 09:13:31 -63.9 Dark Up 27.4 120.5 Low 08:58:31 - 09:28:31 6351
La Pine/Gilchrist 09:12:00 -63.6 Dark Up 17.8 117.8 Really Low 08:57:00 - 09:27:00 6346
Laughlin/Bullhead City 09:13:24 -63.9 Dark Up 26.8 120.5 Low 08:58:24 - 09:28:24 6346
North Lake 09:12:03 -63.6 Dark Up 18.4 118.2 Really Low 08:57:03 - 09:27:03 6342
Henderson 09:13:09 -63.9 Dark Up 26.1 120.5 Low 08:58:09 - 09:28:09 6342
Oregon Observatory 09:11:57 -63.4 Dark Up 17.7 117.9 Really Low 08:56:57 - 09:26:57 6334
Bend 09:11:55 -63.2 Dark Up 17.7 118.1 Really Low 08:56:55 - 09:26:55 6320
Sisters 09:11:54 -63.2 Dark Up 17.4 117.9 Really Low 08:56:54 - 09:26:54 6319
Kingman/Dolan Springs 09:13:23 -63.5 Dark Up 27.2 121.0 Low 08:58:23 - 09:28:23 6317
Redmond 09:11:53 -63.0 Dark Up 17.7 118.2 Really Low 08:56:53 - 09:26:53 6304
Patrick 09:13:20 -63.3 Dark Up 27.2 121.2 Low 08:58:20 - 09:28:20 6300
Maupin 09:11:44 -62.3 Dark Up 17.3 118.5 Really Low 08:56:44 - 09:26:44 6256
The Dalles 09:11:40 -62.1 Dark Up 17.0 118.5 Really Low 08:56:40 - 09:26:40 6240
George/Scottsdale 09:13:27 -62.2 Dark Up 29.5 122.0 Low 08:58:27 - 09:28:27 6232
Goldendale 09:11:37 -61.7 Dark Up 17.1 118.9 Really Low 08:56:37 - 09:26:37 6214
Toppenish/White Swan 09:11:30 -61.1 Dark Up 17.1 119.4 Really Low 08:56:30 - 09:26:30 6169
Victoria 09:11:10 -60.7 Dark Up 14.2 117.3 Really Low 08:56:10 - 09:26:10 6166
Yakima 09:11:28 -61.0 Dark Up 16.9 119.3 Really Low 08:56:28 - 09:26:28 6165
Ellensburg 09:11:22 -60.7 Dark Up 16.7 119.4 Really Low 08:56:22 - 09:26:22 6144
PNWRO 09:11:31 -60.7 Dark Up 18.2 120.5 Really Low 08:56:31 - 09:26:31 6128
Pasco 09:11:28 -60.6 Dark Up 17.9 120.4 Really Low 08:56:28 - 09:26:28 6125
Wenatchee 09:11:20 -60.3 Dark Up 16.6 119.7 Really Low 08:56:20 - 09:26:20 6113
Manson/Chelan 09:11:15 -59.9 Dark Up 16.4 119.9 Really Low 08:56:15 - 09:26:15 6082
Brewster 09:11:12 -59.6 Dark Up 16.6 120.3 Really Low 08:56:12 - 09:26:12 6057
Okanogan 09:11:09 -59.3 Dark Up 16.5 120.5 Really Low 08:56:09 - 09:26:09 6035
Tonasket 09:11:06 -59.0 Dark Up 16.4 120.7 Really Low 08:56:06 - 09:26:06 6011
Anarchist Mountain Observatory 09:11:02 -58.7 Dark Up 16.3 120.8 Really Low 08:56:02 - 09:26:02 5993
Oliver 09:11:01 -58.7 Dark Up 16.1 120.7 Really Low 08:56:01 - 09:26:01 5990
Summerland 09:10:57 -58.4 Dark Up 15.8 120.7 Really Low 08:55:57 - 09:25:57 5972
Penticton 09:10:58 -58.4 Dark Up 15.9 120.8 Really Low 08:55:58 - 09:25:58 5971
Peachland 09:10:57 -58.3 Dark Up 15.7 120.6 Really Low 08:55:57 - 09:25:57 5967
Kelowna 09:10:55 -58.1 Dark Up 15.8 120.9 Really Low 08:55:55 - 09:25:55 5950
Clarence Fulton 09:10:51 -57.7 Dark Up 15.7 121.1 Really Low 08:55:51 - 09:25:51 5922
Dunrhomin 09:12:08 -55.3 Dark Up 29.7 130.6 Low 08:57:08 - 09:27:08 5657

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 558093, (2022/12/05 09:19UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3 18.65 108
Alphard        09:27:35.2 -08:39:30  2.0  7.02 105
8Gam Sex       09:52:30.4 -08:06:19  4.8  1.81 110
PPM 192894     09:55:43.9 -06:09:25  8.5  0.40 111
PPM 192884     09:55:12.9 -06:39:38  9.4  0.38 111
558093         09:54:20.3 -06:21:02 15.4       110
Positions are for J2000

Event circumstances last updated at 2021/10/15 01:17:56 UT

Marc W. Buie, Southwest Research Institute

RECON