RECON: TNO occultation with 342842

Event between (342842) 08YB3 and star GA1360:06040927 with event index number of 2201497

Geocentric closest approach at 2022/08/07 09:15:32 UTC

J2000 position of star is 19:59:33.8 +46:59:01
Equinox of date position of star is 20:00:13.9 +47:02:40
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 85 degrees from the moon. Moon is 71% illuminated.
TNO apparent brightness V=21.2

[RECON map]
TNO is 14.5 AU from the Sun and 14.1 AU from the Earth.
The TNO is moving 32.6 km/sec on the sky relative to the star, or, 11.5 arcsec/hr.
The 1-sigma error in the time of the event is 22 seconds.
The 1-sigma cross-track error in the shadow position is 973 km.
The sky-plane scale is 10206.4 km/arcsec.

The TNO has an absolute magnitude Hv=9.3
Diameter=83.2 km assuming a 5% albedo -- 2.5 sec chord
Diameter=34.0 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 342842, (2022/08/07 09:16UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:12.2 +45:21:43  1.3  7.44  89
PPM 059137     20:00:03.0 +45:50:06  5.9  1.21  84
PPM 059053     19:56:35.3 +47:09:04  7.3  0.63  84
PPM 059161     20:01:10.0 +46:43:44  9.7  0.35  85
PPM 059181     20:01:52.8 +47:00:29 10.6  0.28  85
342842         20:00:15.3 +47:02:47 16.5        85
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 28.6 km RECON observability=1.0 and success probability=55.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 09:13:52 -16.4 AT Down 58.7 280.3 Up 09:11:31 - 09:16:13 757
Kamloops 09:14:19 -21.4 Dark Down 67.4 274.0 Up 09:11:58 - 09:16:40 570
Kelowna 09:14:17 -22.0 Dark Down 66.7 276.5 Up 09:11:56 - 09:16:38 476
Peachland 09:14:18 -22.1 Dark Down 66.9 276.6 Up 09:11:57 - 09:16:39 465
Summerland 09:14:18 -22.2 Dark Down 66.8 277.0 Up 09:11:57 - 09:16:39 448
Penticton 09:14:18 -22.3 Dark Down 66.8 277.2 Up 09:11:57 - 09:16:39 441
Oliver 09:14:18 -22.6 Dark Down 66.7 278.0 Up 09:11:57 - 09:16:39 402
Anarchist Mountain Observatory 09:14:17 -22.7 Dark Down 66.6 278.5 Up 09:11:56 - 09:16:38 382
Victoria 09:14:26 -24.0 Dark Down 69.1 277.6 Up 09:12:05 - 09:16:47 353
Tonasket 09:14:18 -23.0 Dark Down 66.6 279.2 Up 09:11:57 - 09:16:39 348
Okanogan 09:14:18 -23.4 Dark Down 66.6 279.9 Up 09:11:57 - 09:16:39 312
Brewster 09:14:19 -23.7 Dark Down 66.7 280.4 Up 09:11:58 - 09:16:40 282
Manson/Chelan 09:14:19 -24.0 Dark Down 66.9 280.7 Up 09:11:58 - 09:16:40 261
Wenatchee 09:14:20 -24.5 Dark Down 66.9 281.7 Up 09:11:59 - 09:16:41 210
Ellensburg 09:14:21 -24.9 Dark Down 67.0 282.6 Up 09:12:00 - 09:16:42 165
Yakima 09:14:21 -25.3 Dark Down 66.9 283.5 Up 09:12:00 - 09:16:42 121
Toppenish/White Swan 09:14:20 -25.5 Dark Down 66.7 284.1 Up 09:11:59 - 09:16:41 96
Pasco 09:14:18 -25.3 Dark Down 65.9 284.7 Up 09:11:57 - 09:16:39 77
PNWRO 09:14:17 -25.5 Dark Down 65.6 285.3 Up 09:11:56 - 09:16:38 48
Goldendale 09:14:22 -26.1 Dark Down 66.9 285.2 Up 09:12:01 - 09:16:43 38
The Dalles 09:14:23 -26.4 Dark Down 67.1 285.6 Up 09:12:02 - 09:16:44 15
Maupin 09:14:22 -26.7 Dark Down 66.9 286.6 Up 09:12:01 - 09:16:43 -31
Sisters 09:14:24 -27.7 Dark Down 66.9 288.4 Up 09:12:03 - 09:16:45 -125
Redmond 09:14:23 -27.6 Dark Down 66.7 288.5 Up 09:12:02 - 09:16:44 -130
Bend 09:14:23 -27.9 Dark Down 66.7 289.0 Up 09:12:02 - 09:16:44 -152
Oregon Observatory 09:14:24 -28.1 Dark Down 66.7 289.4 Up 09:12:03 - 09:16:45 -170
La Pine/Gilchrist 09:14:24 -28.3 Dark Down 66.7 289.8 Up 09:12:03 - 09:16:45 -192
North Lake 09:14:23 -28.5 Dark Down 66.1 290.8 Up 09:12:02 - 09:16:44 -244
Paisley 09:14:22 -29.0 Dark Down 65.7 292.0 Up 09:12:01 - 09:16:43 -306
Chiloquin 09:14:25 -29.4 Dark Down 66.5 292.2 Up 09:12:04 - 09:16:46 -311
Klamath Falls 09:14:26 -29.7 Dark Down 66.3 292.9 Up 09:12:05 - 09:16:47 -348
Lakeview 09:14:22 -29.4 Dark Down 65.4 293.0 Up 09:12:01 - 09:16:43 -362
Cedarville 09:14:22 -30.0 Dark Down 65.0 294.3 Up 09:12:01 - 09:16:43 -434
Fall River/Burney 09:14:25 -30.8 Dark Down 65.6 295.3 Up 09:12:04 - 09:16:46 -479
Dunrhomin 09:13:48 -26.1 Dark Down 54.3 297.6 Up 09:11:27 - 09:16:09 -524
Susanville 09:14:24 -31.2 Dark Down 64.8 296.5 Up 09:12:03 - 09:16:45 -552
Greenville 09:14:25 -31.5 Dark Down 64.9 297.0 Up 09:12:04 - 09:16:46 -579
Gimple 09:14:24 -31.5 Dark Down 64.8 297.0 Up 09:12:03 - 09:16:45 -580
Quincy 09:14:25 -31.7 Dark Down 64.8 297.4 Up 09:12:04 - 09:16:46 -601
Portola 09:14:24 -31.7 Dark Down 64.4 297.6 Up 09:12:03 - 09:16:45 -618
Reno 09:14:22 -31.8 Dark Down 63.9 298.0 Up 09:12:01 - 09:16:43 -650
Carson City 09:14:22 -32.1 Dark Down 63.7 298.7 Up 09:12:01 - 09:16:43 -689
Yerington 09:14:21 -32.1 Dark Down 63.1 298.9 Up 09:12:00 - 09:16:42 -713
Gardnerville 09:14:22 -32.3 Dark Down 63.5 299.1 Up 09:12:01 - 09:16:43 -715
Hawthorne 09:14:20 -32.4 Dark Down 62.6 299.7 Up 09:11:59 - 09:16:41 -765
Tonopah 09:14:17 -32.4 Dark Down 61.4 300.3 Up 09:11:56 - 09:16:38 -819
Lee Vining 09:14:21 -33.1 Dark Down 62.6 300.7 Up 09:12:00 - 09:16:42 -823
Bishop 09:14:20 -33.4 Dark Down 61.8 301.5 Up 09:11:59 - 09:16:41 -889
Beatty 09:14:16 -33.4 Dark Down 60.5 302.0 Up 09:11:55 - 09:16:37 -943
Indian Springs 09:14:14 -33.3 Dark Down 59.6 302.3 Up 09:11:53 - 09:16:35 -978
Henderson 09:14:12 -33.6 Dark Down 58.8 303.0 Up 09:11:51 - 09:16:33 -1035
CPSLO 09:14:27 -36.0 Dark Down 62.2 305.3 Up 09:12:06 - 09:16:48 -1095
Patrick 09:14:09 -33.7 Dark Down 57.7 303.7 Up 09:11:48 - 09:16:30 -1100
Kingman/Dolan Springs 09:14:10 -34.0 Dark Down 57.7 304.0 Up 09:11:49 - 09:16:31 -1123
Laughlin/Bullhead City 09:14:12 -34.2 Dark Down 58.1 304.1 Up 09:11:51 - 09:16:33 -1126
Mohave Valley 09:14:11 -34.4 Dark Down 57.9 304.4 Up 09:11:50 - 09:16:32 -1155
Lake Havasu City 09:14:11 -34.7 Dark Down 57.5 304.9 Up 09:11:50 - 09:16:32 -1196
Wildwood 09:14:22 -36.5 Dark Down 60.1 306.4 Up 09:12:01 - 09:16:43 -1232
Parker 09:14:11 -35.0 Dark Down 57.3 305.4 Up 09:11:50 - 09:16:32 -1233
George/Scottsdale 09:14:05 -34.4 Dark Down 55.4 305.5 Up 09:11:44 - 09:16:26 -1270
Idyllwild 09:14:18 -36.2 Dark Down 58.7 306.4 Up 09:11:57 - 09:16:39 -1276
Blythe 09:14:12 -35.6 Dark Down 57.2 306.1 Up 09:11:51 - 09:16:33 -1288
Calipatria 09:14:15 -36.4 Dark Down 57.5 306.9 Up 09:11:54 - 09:16:36 -1339
Yuma 09:14:13 -36.4 Dark Down 56.6 307.2 Up 09:11:52 - 09:16:34 -1384

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 342842, (2022/08/07 09:16UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3  7.44  89
PPM 059137     19:59:20.5 +45:46:20  5.9  1.21  84
PPM 059053     19:55:54.2 +47:05:24  7.3  0.63  84
PPM 059161     20:00:28.2 +46:39:56  9.7  0.35  85
PPM 059181     20:01:11.2 +46:56:40 10.6  0.28  85
342842         19:59:33.8 +46:59:01 16.5        85
Positions are for J2000

Event circumstances last updated at 2021/11/15 00:47:55 UT

Marc W. Buie, Southwest Research Institute

RECON