RECON: TNO occultation with 342842

Event between (342842) 08YB3 and star GA1320:06100755 with event index number of 2201619

Geocentric closest approach at 2022/10/06 04:39:38 UTC

J2000 position of star is 19:44:37.5 +43:12:59
Equinox of date position of star is 19:45:20.1 +43:16:13
Stellar brightness G=15.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 68 degrees from the moon. Moon is 84% illuminated.
TNO apparent brightness V=21.2

[RECON map]
TNO is 14.6 AU from the Sun and 14.3 AU from the Earth.
The TNO is moving 33.5 km/sec on the sky relative to the star, or, 11.6 arcsec/hr.
The 1-sigma error in the time of the event is 35 seconds.
The 1-sigma cross-track error in the shadow position is 564 km.
The sky-plane scale is 10398.6 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, (2022/10/06 04:41UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:12.5 +45:21:45  1.3 10.37  65
37Gam Cyg      20:23:02.8 +40:19:50  2.2  7.61  62
18Del Cyg      19:45:41.3 +45:11:14  3.0  1.92  70
PPM 058729     19:43:34.7 +42:42:19  8.5  0.65  68
PPM 058786     19:45:53.1 +43:12:12  9.7  0.12  68
342842         19:45:21.9 +43:16:21 15.1        68
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 14.9 km RECON observability=1.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 04:39:04 -29.0 Dark Up 71.9 262.4 Up 04:35:41 - 04:42:27 -3772
Kamloops 04:38:55 -29.6 Dark Up 69.6 259.5 Up 04:35:32 - 04:42:18 -3836
Peachland 04:38:57 -30.4 Dark Up 69.4 262.6 Up 04:35:34 - 04:42:20 -3924
Kelowna 04:38:56 -30.5 Dark Up 69.2 262.6 Up 04:35:33 - 04:42:19 -3935
Summerland 04:38:57 -30.5 Dark Up 69.3 263.0 Up 04:35:34 - 04:42:20 -3938
Penticton 04:38:57 -30.6 Dark Up 69.3 263.3 Up 04:35:34 - 04:42:20 -3948
Oliver 04:38:58 -30.8 Dark Up 69.3 264.2 Up 04:35:35 - 04:42:21 -3969
Anarchist Mountain Observatory 04:38:59 -31.0 Dark Up 69.2 264.9 Up 04:35:36 - 04:42:22 -3991
Tonasket 04:38:59 -31.2 Dark Up 69.3 265.6 Up 04:35:36 - 04:42:22 -4004
Manson/Chelan 04:39:03 -31.2 Dark Up 69.8 267.2 Up 04:35:40 - 04:42:26 -4007
Okanogan 04:39:01 -31.2 Dark Up 69.4 266.4 Up 04:35:38 - 04:42:24 -4014
Brewster 04:39:02 -31.3 Dark Up 69.5 266.9 Up 04:35:39 - 04:42:25 -4018
Wenatchee 04:39:04 -31.3 Dark Up 69.9 268.4 Up 04:35:41 - 04:42:27 -4023
Ellensburg 04:39:06 -31.4 Dark Up 70.1 269.3 Up 04:35:43 - 04:42:29 -4033
Yakima 04:39:07 -31.6 Dark Up 70.1 270.4 Up 04:35:44 - 04:42:30 -4054
The Dalles 04:39:10 -31.7 Dark Up 70.5 272.8 Up 04:35:47 - 04:42:33 -4069
Toppenish/White Swan 04:39:07 -31.8 Dark Up 69.9 271.2 Up 04:35:44 - 04:42:30 -4077
Goldendale 04:39:09 -31.8 Dark Up 70.2 272.4 Up 04:35:46 - 04:42:32 -4080
Maupin 04:39:11 -32.0 Dark Up 70.4 274.0 Up 04:35:48 - 04:42:34 -4098
Sisters 04:39:14 -32.1 Dark Up 70.6 276.3 Up 04:35:51 - 04:42:37 -4113
Redmond 04:39:14 -32.4 Dark Up 70.3 276.5 Up 04:35:51 - 04:42:37 -4141
Bend 04:39:15 -32.4 Dark Up 70.4 277.1 Up 04:35:52 - 04:42:38 -4143
Oregon Observatory 04:39:15 -32.4 Dark Up 70.5 277.5 Up 04:35:52 - 04:42:38 -4143
La Pine/Gilchrist 04:39:16 -32.4 Dark Up 70.5 278.0 Up 04:35:53 - 04:42:39 -4150
Pasco 04:39:06 -32.6 Dark Up 69.1 272.3 Up 04:35:43 - 04:42:29 -4163
Chiloquin 04:39:19 -32.7 Dark Up 70.6 281.0 Up 04:35:56 - 04:42:42 -4184
PNWRO 04:39:06 -32.9 Dark Up 68.9 273.1 Up 04:35:43 - 04:42:29 -4191
Klamath Falls 04:39:20 -32.9 Dark Up 70.4 282.0 Up 04:35:57 - 04:42:43 -4207
North Lake 04:39:17 -33.0 Dark Up 70.0 279.5 Up 04:35:54 - 04:42:40 -4213
Paisley 04:39:17 -33.5 Dark Up 69.6 281.1 Up 04:35:54 - 04:42:40 -4266
Fall River/Burney 04:39:24 -33.7 Dark Up 69.9 285.2 Up 04:36:01 - 04:42:47 -4294
Lakeview 04:39:19 -33.9 Dark Up 69.4 282.4 Up 04:35:56 - 04:42:42 -4306
Cedarville 04:39:21 -34.3 Dark Up 69.1 284.2 Up 04:35:58 - 04:42:44 -4353
Greenville 04:39:26 -34.4 Dark Up 69.3 287.6 Up 04:36:03 - 04:42:49 -4371
Gimple 04:39:25 -34.5 Dark Up 69.2 287.6 Up 04:36:02 - 04:42:48 -4377
Susanville 04:39:24 -34.5 Dark Up 69.1 286.9 Up 04:36:01 - 04:42:47 -4377
Quincy 04:39:26 -34.5 Dark Up 69.2 288.1 Up 04:36:03 - 04:42:49 -4381
Portola 04:39:27 -34.9 Dark Up 68.8 288.4 Up 04:36:04 - 04:42:50 -4421
Reno 04:39:26 -35.5 Dark Up 68.3 289.1 Up 04:36:03 - 04:42:49 -4480
Sleaford 04:38:36 -35.6 Dark Up 60.6 269.6 Up 04:35:13 - 04:41:59 -4484
Carson City 04:39:27 -35.7 Dark Up 68.1 289.9 Up 04:36:04 - 04:42:50 -4500
Gardnerville 04:39:27 -35.8 Dark Up 68.0 290.5 Up 04:36:04 - 04:42:50 -4516
Yerington 04:39:27 -36.2 Dark Up 67.6 290.4 Up 04:36:04 - 04:42:50 -4555
Lee Vining 04:39:30 -36.7 Dark Up 67.2 292.7 Up 04:36:07 - 04:42:53 -4611
Hawthorne 04:39:27 -36.8 Dark Up 67.0 291.4 Up 04:36:04 - 04:42:50 -4616
CPSLO 04:39:39 -36.7 Dark Up 67.1 298.7 Up 04:36:16 - 04:43:02 -4630
Bishop 04:39:30 -37.5 Dark Up 66.4 293.8 Up 04:36:07 - 04:42:53 -4692
Tonopah 04:39:27 -38.0 Dark Up 65.8 292.3 Up 04:36:04 - 04:42:50 -4738
Beatty 04:39:30 -38.8 Dark Up 65.0 294.6 Up 04:36:07 - 04:42:53 -4830
Wildwood 04:39:40 -38.7 Dark Up 65.0 300.3 Up 04:36:17 - 04:43:03 -4841
Indian Springs 04:39:29 -39.7 Dark Up 64.1 295.1 Up 04:36:06 - 04:42:52 -4922
Idyllwild 04:39:38 -40.3 Dark Up 63.5 300.4 Up 04:36:15 - 04:43:01 -4996
Henderson 04:39:30 -40.5 Dark Up 63.4 296.0 Up 04:36:07 - 04:42:53 -4997
Laughlin/Bullhead City 04:39:31 -41.2 Dark Up 62.7 297.5 Up 04:36:08 - 04:42:54 -5072
Mohave Valley 04:39:32 -41.3 Dark Up 62.5 297.9 Up 04:36:09 - 04:42:55 -5086
Kingman/Dolan Springs 04:39:30 -41.6 Dark Up 62.3 297.3 Up 04:36:07 - 04:42:53 -5106
Patrick 04:39:30 -41.6 Dark Up 62.3 296.9 Up 04:36:07 - 04:42:53 -5107
Calipatria 04:39:38 -41.4 Dark Up 62.3 301.1 Up 04:36:15 - 04:43:01 -5110
Lake Havasu City 04:39:34 -41.7 Dark Up 62.2 298.6 Up 04:36:11 - 04:42:57 -5125
Parker 04:39:34 -41.9 Dark Up 62.0 299.1 Up 04:36:11 - 04:42:57 -5145
Blythe 04:39:35 -41.9 Dark Up 61.9 300.1 Up 04:36:12 - 04:42:58 -5151
Yuma 04:39:39 -42.3 Dark Up 61.5 301.5 Up 04:36:16 - 04:43:02 -5196
George/Scottsdale 04:39:32 -43.9 Dark Up 60.0 299.4 Up 04:36:09 - 04:42:55 -5333
Dunrhomin 04:39:04 -44.3 Dark Up 57.9 289.8 Up 04:35:41 - 04:42:27 -5350

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, (2022/10/06 04:41UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 10.37  65
37Gam Cyg      20:22:13.7 +40:15:24  2.2  7.61  62
18Del Cyg      19:44:58.7 +45:07:51  3.0  1.92  70
PPM 058729     19:42:49.9 +42:39:01  8.5  0.65  68
PPM 058786     19:45:08.6 +43:08:49  9.7  0.12  68
342842         19:44:37.5 +43:12:59 15.1        68
Positions are for J2000

Event circumstances last updated at 2021/11/15 00:49:00 UT

Marc W. Buie, Southwest Research Institute

RECON