RECON: TNO occultation with 600217

Event between (600217) 11QY100 and star GA0860:01300264 with event index number of 2730009

Geocentric closest approach at 2022/09/27 10:06:03 UTC

J2000 position of star is 06:25:16.8 -02:11:59
Equinox of date position of star is 06:26:23.1 -02:12:49
Stellar brightness G=15.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 105 degrees from the moon. Moon is 3% illuminated.
TNO apparent brightness V=21.4

[RECON map]
TNO is 19.7 AU from the Sun and 19.7 AU from the Earth.
The TNO is moving 15.4 km/sec on the sky relative to the star, or, 3.9 arcsec/hr.
The 1-sigma error in the time of the event is 58 seconds.
The 1-sigma cross-track error in the shadow position is 1029 km.
The sky-plane scale is 14307.2 km/arcsec.

The TNO has an absolute magnitude Hv=8.2
Diameter=137.4 km assuming a 5% albedo -- 8.9 sec chord
Diameter=56.1 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 600217, (2022/09/27 10:06UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:24.2 +07:24:34  0.4 12.19 113
Saiph          05:48:50.1 -09:39:48  2.1 11.95 113
PPM 176266     06:27:48.7 -01:31:21  5.9  0.77 105
PPM 176257     06:27:08.0 -01:49:42  8.5  0.42 105
PPM 176259     06:27:11.9 -02:28:19  8.7  0.32 105
600217         06:26:25.6 -02:12:50 15.6       105
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 15.6 km RECON observability=0.5 and success probability=37.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 09:59:46 -26.6 Dark Down 23.3 128.4 Low 09:54:28 - 10:05:04 2564
Kamloops 09:59:25 -34.2 Dark Down 16.3 114.8 Really Low 09:54:07 - 10:04:43 1940
Kelowna 09:59:27 -34.4 Dark Down 17.2 115.4 Really Low 09:54:09 - 10:04:45 1884
Peachland 09:59:26 -34.6 Dark Down 17.0 115.1 Really Low 09:54:08 - 10:04:44 1864
Summerland 09:59:27 -34.7 Dark Down 17.2 115.1 Really Low 09:54:09 - 10:04:45 1851
Penticton 09:59:27 -34.7 Dark Down 17.3 115.2 Really Low 09:54:09 - 10:04:45 1848
Oliver 09:59:27 -35.0 Dark Down 17.4 115.1 Really Low 09:54:09 - 10:04:45 1812
Anarchist Mountain Observatory 09:59:27 -35.0 Dark Down 17.6 115.2 Really Low 09:54:09 - 10:04:45 1801
Tonasket 09:59:27 -35.3 Dark Down 17.7 115.1 Really Low 09:54:09 - 10:04:45 1768
Okanogan 09:59:28 -35.6 Dark Down 17.7 114.9 Really Low 09:54:10 - 10:04:46 1729
Brewster 09:59:28 -35.9 Dark Down 17.7 114.6 Really Low 09:54:10 - 10:04:46 1695
Manson/Chelan 09:59:28 -36.2 Dark Down 17.6 114.3 Really Low 09:54:10 - 10:04:46 1663
Victoria 09:59:23 -37.1 Dark Down 15.3 111.7 Really Low 09:54:05 - 10:04:41 1634
Wenatchee 09:59:27 -36.6 Dark Down 17.7 114.0 Really Low 09:54:09 - 10:04:45 1609
Ellensburg 09:59:28 -37.1 Dark Down 17.7 113.7 Really Low 09:54:10 - 10:04:46 1560
Pasco 09:59:30 -36.9 Dark Down 18.9 114.6 Really Low 09:54:12 - 10:04:48 1530
Dunrhomin 10:00:06 -32.6 Dark Down 30.8 124.3 Up 09:54:48 - 10:05:24 1519
Yakima 09:59:28 -37.4 Dark Down 17.9 113.5 Really Low 09:54:10 - 10:04:46 1518
PNWRO 09:59:31 -37.0 Dark Down 19.2 114.7 Really Low 09:54:13 - 10:04:49 1512
Toppenish/White Swan 09:59:28 -37.5 Dark Down 18.1 113.6 Really Low 09:54:10 - 10:04:46 1502
Goldendale 09:59:28 -38.1 Dark Down 18.0 113.1 Really Low 09:54:10 - 10:04:46 1432
The Dalles 09:59:28 -38.4 Dark Down 17.9 112.7 Really Low 09:54:10 - 10:04:46 1398
Maupin 09:59:29 -38.7 Dark Down 18.1 112.7 Really Low 09:54:11 - 10:04:47 1359
Redmond 09:59:30 -39.4 Dark Down 18.4 112.4 Really Low 09:54:12 - 10:04:48 1263
Sisters 09:59:29 -39.6 Dark Down 18.1 112.0 Really Low 09:54:11 - 10:04:47 1253
Bend 09:59:30 -39.6 Dark Down 18.4 112.2 Really Low 09:54:12 - 10:04:48 1237
Oregon Observatory 09:59:30 -39.8 Dark Down 18.3 112.0 Really Low 09:54:12 - 10:04:48 1215
La Pine/Gilchrist 09:59:30 -40.0 Dark Down 18.4 111.9 Really Low 09:54:12 - 10:04:48 1193
North Lake 09:59:32 -40.0 Dark Down 19.0 112.3 Really Low 09:54:14 - 10:04:50 1168
Paisley 09:59:33 -40.2 Dark Down 19.4 112.4 Really Low 09:54:15 - 10:04:51 1124
Lakeview 09:59:34 -40.5 Dark Down 19.7 112.3 Really Low 09:54:16 - 10:04:52 1079
Chiloquin 09:59:31 -41.0 Dark Down 18.6 111.3 Really Low 09:54:13 - 10:04:49 1068
Klamath Falls 09:59:32 -41.2 Dark Down 18.7 111.3 Really Low 09:54:14 - 10:04:50 1036
Cedarville 09:59:35 -40.9 Dark Down 20.1 112.3 Low 09:54:17 - 10:04:53 1018
Fall River/Burney 09:59:34 -41.9 Dark Down 19.4 111.2 Really Low 09:54:16 - 10:04:52 928
Susanville 09:59:36 -41.9 Dark Down 20.2 111.5 Low 09:54:18 - 10:04:54 889
Gimple 09:59:37 -42.2 Dark Down 20.1 111.3 Low 09:54:19 - 10:04:55 854
Greenville 09:59:36 -42.3 Dark Down 20.1 111.2 Low 09:54:18 - 10:04:54 852
Portola 09:59:38 -42.3 Dark Down 20.6 111.5 Low 09:54:20 - 10:04:56 835
Quincy 09:59:37 -42.4 Dark Down 20.2 111.1 Low 09:54:19 - 10:04:55 831
Reno 09:59:39 -42.1 Dark Down 21.1 111.9 Low 09:54:21 - 10:04:57 831
Yerington 09:59:41 -42.1 Dark Down 21.8 112.2 Low 09:54:23 - 10:04:59 799
Carson City 09:59:40 -42.3 Dark Down 21.3 111.7 Low 09:54:22 - 10:04:58 796
Tonopah 09:59:47 -41.5 Dark Down 23.6 113.3 Low 09:54:29 - 10:05:05 780
Gardnerville 09:59:41 -42.5 Dark Down 21.4 111.7 Low 09:54:23 - 10:04:59 773
Hawthorne 09:59:43 -42.1 Dark Down 22.4 112.4 Low 09:54:25 - 10:05:01 773
Lee Vining 09:59:43 -42.7 Dark Down 22.2 111.8 Low 09:54:25 - 10:05:01 698
Indian Springs 09:59:53 -41.5 Dark Down 25.3 113.8 Low 09:54:35 - 10:05:11 697
Beatty 09:59:50 -42.0 Dark Down 24.4 113.1 Low 09:54:32 - 10:05:08 685
Henderson 09:59:55 -41.4 Dark Down 26.1 114.1 Low 09:54:37 - 10:05:13 674
Bishop 09:59:46 -42.7 Dark Down 23.0 112.1 Low 09:54:28 - 10:05:04 666
Patrick 09:59:59 -41.0 Dark Down 27.2 114.7 Low 09:54:41 - 10:05:17 662
Kingman/Dolan Springs 09:59:59 -41.2 Dark Down 27.1 114.4 Low 09:54:41 - 10:05:17 632
Laughlin/Bullhead City 09:59:58 -41.6 Dark Down 26.7 114.0 Low 09:54:40 - 10:05:16 608
George/Scottsdale 10:00:08 -40.5 Dark Down 29.4 115.4 Low 09:54:50 - 10:05:26 592
Mohave Valley 09:59:59 -41.7 Dark Down 26.8 113.9 Low 09:54:41 - 10:05:17 582
Lake Havasu City 10:00:00 -41.8 Dark Down 27.2 113.9 Low 09:54:42 - 10:05:18 554
Parker 10:00:01 -42.0 Dark Down 27.4 113.8 Low 09:54:43 - 10:05:19 522
Blythe 10:00:02 -42.5 Dark Down 27.3 113.3 Low 09:54:44 - 10:05:20 459
Idyllwild 09:59:58 -43.9 Dark Down 25.7 111.8 Low 09:54:40 - 10:05:16 379
CPSLO 09:59:47 -45.4 Dark Down 22.0 109.7 Low 09:54:29 - 10:05:05 378
Calipatria 10:00:02 -43.4 Dark Down 26.8 112.4 Low 09:54:44 - 10:05:20 371
Yuma 10:00:05 -43.0 Dark Down 27.7 112.8 Low 09:54:47 - 10:05:23 369
Wildwood 09:59:53 -44.9 Dark Down 24.1 110.7 Low 09:54:35 - 10:05:11 337

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 600217, (2022/09/27 10:06UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 12.19 113
Saiph          05:47:45.4 -09:40:11  2.1 11.95 113
PPM 176266     06:26:39.6 -01:30:27  5.9  0.77 105
PPM 176257     06:25:59.0 -01:48:49  8.5  0.42 105
PPM 176259     06:26:03.2 -02:27:26  8.7  0.32 105
600217         06:25:16.8 -02:11:59 15.6       105
Positions are for J2000

Event circumstances last updated at 2021/12/02 01:01:25 UT

Marc W. Buie, Southwest Research Institute

RECON