RECON: TNO occultation with 342842

Event between (342842) 08YB3 and star GA1360:06621070 with event index number of 2201403

Geocentric closest approach at 2022/06/17 05:57:07 UTC

J2000 position of star is 20:19:27.2 +47:28:39
Equinox of date position of star is 20:20:08.3 +47:32:50
Stellar brightness G=16.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 71 degrees from the moon. Moon is 89% illuminated.
TNO apparent brightness V=21.2

[RECON map]
TNO is 14.5 AU from the Sun and 14.2 AU from the Earth.
The TNO is moving 25.2 km/sec on the sky relative to the star, or, 8.8 arcsec/hr.
The 1-sigma error in the time of the event is 24 seconds.
The 1-sigma cross-track error in the shadow position is 1032 km.
The sky-plane scale is 10318.3 km/arcsec.

The TNO has an absolute magnitude Hv=9.3
Diameter=83.2 km assuming a 5% albedo -- 3.3 sec chord
Diameter=34.0 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 342842, (2022/06/17 05:57UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:11.9 +45:21:41  1.3  4.38  69
PPM 059730     20:20:38.9 +46:54:33  6.1  0.65  71
PPM 059716     20:20:09.8 +47:21:25  9.3  0.19  71
342842         20:20:09.4 +47:32:57 16.1        71
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 26.7 km RECON observability=0.7 and success probability=34.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 06:00:00 -11.2 NT Down 45.9 65.7 Up 05:57:29 - 06:02:30 2012
Victoria 06:00:09 -12.1 AT Down 43.2 62.4 Up 05:57:38 - 06:02:39 1941
Peachland 06:00:00 -12.2 AT Down 45.9 65.1 Up 05:57:30 - 06:02:31 1903
Kelowna 06:00:00 -12.2 AT Down 46.1 65.4 Up 05:57:29 - 06:02:30 1902
Summerland 06:00:01 -12.3 AT Down 45.9 65.1 Up 05:57:30 - 06:02:31 1886
Penticton 06:00:01 -12.4 AT Down 45.9 65.0 Up 05:57:30 - 06:02:31 1875
Oliver 06:00:01 -12.7 AT Down 45.8 64.7 Up 05:57:31 - 06:02:32 1843
Anarchist Mountain Observatory 06:00:01 -13.0 AT Down 45.8 64.6 Up 05:57:31 - 06:02:32 1819
Tonasket 06:00:02 -13.2 AT Down 45.6 64.3 Up 05:57:31 - 06:02:32 1794
Okanogan 06:00:03 -13.5 AT Down 45.4 64.0 Up 05:57:32 - 06:02:33 1768
Brewster 06:00:04 -13.6 AT Down 45.2 63.6 Up 05:57:33 - 06:02:34 1751
Manson/Chelan 06:00:05 -13.7 AT Down 44.9 63.3 Up 05:57:34 - 06:02:35 1747
Wenatchee 06:00:06 -14.1 AT Down 44.5 62.8 Up 05:57:36 - 06:02:37 1710
Ellensburg 06:00:07 -14.4 AT Down 44.2 62.3 Up 05:57:37 - 06:02:38 1681
Sleaford 05:59:31 -13.2 AT Down 54.8 74.9 Up 05:57:01 - 06:02:02 1669
Yakima 06:00:08 -14.7 AT Down 44.0 62.0 Up 05:57:38 - 06:02:39 1645
Toppenish/White Swan 06:00:08 -15.0 AT Down 44.0 61.9 Up 05:57:38 - 06:02:39 1617
Goldendale 06:00:10 -15.3 AT Down 43.5 61.2 Up 05:57:40 - 06:02:41 1585
The Dalles 06:00:11 -15.4 AT Down 43.2 60.9 Up 05:57:41 - 06:02:42 1580
Pasco 06:00:07 -15.5 AT Down 44.7 62.3 Up 05:57:36 - 06:02:37 1553
Maupin 06:00:11 -15.8 AT Down 43.0 60.6 Up 05:57:41 - 06:02:42 1537
PNWRO 06:00:06 -15.8 AT Down 44.8 62.1 Up 05:57:36 - 06:02:37 1520
Sisters 06:00:14 -16.4 AT Down 42.3 59.7 Up 05:57:44 - 06:02:45 1477
Redmond 06:00:14 -16.5 AT Down 42.5 59.8 Up 05:57:43 - 06:02:44 1457
Bend 06:00:14 -16.7 AT Down 42.3 59.6 Up 05:57:43 - 06:02:44 1444
Oregon Observatory 06:00:15 -16.8 AT Down 42.2 59.4 Up 05:57:44 - 06:02:45 1434
La Pine/Gilchrist 06:00:15 -16.9 AT Down 42.0 59.3 Up 05:57:45 - 06:02:46 1418
North Lake 06:00:15 -17.5 AT Down 42.2 59.1 Up 05:57:44 - 06:02:45 1350
Chiloquin 06:00:18 -17.7 AT Down 41.2 58.3 Up 05:57:47 - 06:02:48 1332
Klamath Falls 06:00:18 -18.1 Dark Down 41.1 58.1 Up 05:57:48 - 06:02:49 1296
Paisley 06:00:15 -18.1 Dark Down 42.1 58.8 Up 05:57:45 - 06:02:46 1283
Lakeview 06:00:16 -18.6 Dark Down 42.0 58.5 Up 05:57:45 - 06:02:46 1227
Fall River/Burney 06:00:20 -19.2 Dark Down 40.7 57.3 Up 05:57:49 - 06:02:50 1170
Cedarville 06:00:17 -19.3 Dark Down 41.8 58.1 Up 05:57:46 - 06:02:47 1158
Susanville 06:00:19 -20.1 Dark Down 40.9 57.1 Up 05:57:49 - 06:02:50 1077
Greenville 06:00:20 -20.2 Dark Down 40.5 56.8 Up 05:57:50 - 06:02:51 1065
Gimple 06:00:20 -20.2 Dark Down 40.6 56.8 Up 05:57:49 - 06:02:50 1061
Quincy 06:00:20 -20.4 Dark Down 40.4 56.7 Up 05:57:50 - 06:02:51 1046
Portola 06:00:20 -20.7 Dark Down 40.6 56.7 Up 05:57:49 - 06:02:50 1012
Reno 06:00:19 -21.1 Dark Down 40.9 56.7 Up 05:57:48 - 06:02:49 957
Carson City 06:00:19 -21.5 Dark Down 40.7 56.4 Up 05:57:49 - 06:02:50 922
Gardnerville 06:00:20 -21.7 Dark Down 40.6 56.3 Up 05:57:49 - 06:02:50 897
Yerington 06:00:19 -21.9 Dark Down 41.0 56.5 Up 05:57:48 - 06:02:49 874
Hawthorne 06:00:18 -22.5 Dark Down 41.1 56.3 Up 05:57:48 - 06:02:49 806
Lee Vining 06:00:20 -22.8 Dark Down 40.5 55.7 Up 05:57:50 - 06:02:51 776
Tonopah 06:00:16 -23.4 Dark Down 41.8 56.2 Up 05:57:46 - 06:02:47 697
Bishop 06:00:19 -23.6 Dark Down 40.6 55.5 Up 05:57:49 - 06:02:50 686
CPSLO 06:00:26 -24.5 Dark Down 38.0 53.6 Up 05:57:56 - 06:02:57 604
Beatty 06:00:16 -24.6 Dark Up 41.4 55.5 Up 05:57:46 - 06:02:47 567
Indian Springs 06:00:15 -25.3 Dark Up 42.0 55.5 Up 05:57:44 - 06:02:45 486
Dunrhomin 05:59:46 -24.8 Dark Up 50.8 60.7 Up 05:57:15 - 06:02:16 439
Henderson 06:00:14 -26.0 Dark Up 42.1 55.2 Up 05:57:43 - 06:02:44 404
Wildwood 06:00:24 -26.4 Dark Up 38.6 53.2 Up 05:57:53 - 06:02:54 389
Laughlin/Bullhead City 06:00:14 -26.9 Dark Up 41.9 54.6 Up 05:57:43 - 06:02:44 302
Patrick 06:00:12 -27.0 Dark Up 42.5 54.9 Up 05:57:41 - 06:02:42 294
Kingman/Dolan Springs 06:00:13 -27.1 Dark Up 42.2 54.7 Up 05:57:42 - 06:02:43 281
Mohave Valley 06:00:14 -27.2 Dark Up 41.7 54.4 Up 05:57:44 - 06:02:45 276
Idyllwild 06:00:20 -27.4 Dark Up 39.6 53.3 Up 05:57:50 - 06:02:51 264
Lake Havasu City 06:00:14 -27.6 Dark Up 41.7 54.2 Up 05:57:44 - 06:02:45 227
Parker 06:00:14 -28.0 Dark Up 41.5 53.9 Up 05:57:44 - 06:02:45 192
Blythe 06:00:16 -28.3 Dark Up 41.0 53.5 Up 05:57:45 - 06:02:46 155
Calipatria 06:00:18 -28.4 Dark Up 40.1 53.0 Up 05:57:48 - 06:02:49 151
Yuma 06:00:17 -29.1 Dark Up 40.4 52.9 Up 05:57:46 - 06:02:47 69
George/Scottsdale 06:00:09 -29.2 Dark Up 42.8 53.9 Up 05:57:39 - 06:02:40 43

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, (2022/06/17 05:57UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3  4.38  69
PPM 059730     20:19:56.1 +46:50:14  6.1  0.65  71
PPM 059716     20:19:27.5 +47:17:07  9.3  0.19  71
342842         20:19:27.2 +47:28:39 16.1        71
Positions are for J2000

Event circumstances last updated at 2021/11/15 00:47:32 UT

Marc W. Buie, Southwest Research Institute

RECON