RECON: TNO occultation with 342842

Event between (342842) 08YB3 and star GA1280:06334199 with event index number of 2201709

Geocentric closest approach at 2022/11/23 02:18:02 UTC

J2000 position of star is 19:48:06.8 +39:51:16
Equinox of date position of star is 19:48:52.3 +39:54:36
Stellar brightness G=14.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 87 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=21.3

[RECON map]
TNO is 14.7 AU from the Sun and 14.8 AU from the Earth.
The TNO is moving 31.0 km/sec on the sky relative to the star, or, 10.4 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 808 km.
The sky-plane scale is 10731.7 km/arcsec.

The TNO has an absolute magnitude Hv=9.3
Diameter=83.2 km assuming a 5% albedo -- 2.7 sec chord
Diameter=34.0 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 342842, (2022/11/23 02:19UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:12.8 +45:21:47  1.3 11.20  98
37Gam Cyg      20:23:03.0 +40:19:52  2.2  6.54  93
PPM 083550     19:48:16.6 +38:27:56  5.6  1.45  87
PPM 083502     19:46:42.8 +39:56:45  7.0  0.42  87
PPM 083589     19:49:14.4 +39:55:28  9.0  0.07  87
342842         19:48:54.4 +39:54:45 14.4        88
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 5.8 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)
Dunrhomin 02:18:36 -30.2 Dark Down 49.0 287.8 Up 02:15:09 - 02:22:03 5350
Sleaford 02:17:54 -29.3 Dark Down 51.8 273.2 Up 02:14:27 - 02:21:21 5242
George/Scottsdale 02:19:00 -24.3 Dark Down 51.6 293.5 Up 02:15:33 - 02:22:27 4819
Patrick 02:18:54 -22.9 Dark Down 53.8 291.1 Up 02:15:27 - 02:22:21 4691
Kingman/Dolan Springs 02:18:55 -22.8 Dark Down 53.9 291.3 Up 02:15:28 - 02:22:22 4674
Lake Havasu City 02:18:57 -22.4 Dark Down 53.8 292.2 Up 02:15:30 - 02:22:24 4642
Parker 02:18:58 -22.4 Dark Down 53.6 292.6 Up 02:15:31 - 02:22:25 4638
Laughlin/Bullhead City 02:18:55 -22.3 Dark Down 54.2 291.3 Up 02:15:28 - 02:22:22 4633
Mohave Valley 02:18:56 -22.3 Dark Down 54.1 291.6 Up 02:15:29 - 02:22:23 4629
Henderson 02:18:52 -22.1 Dark Down 54.9 290.1 Up 02:15:25 - 02:22:19 4616
Blythe 02:19:00 -22.1 Dark Down 53.7 293.3 Up 02:15:33 - 02:22:27 4606
Yuma 02:19:04 -21.9 Dark Down 53.3 294.4 Up 02:15:37 - 02:22:31 4586
Indian Springs 02:18:49 -21.7 Dark Down 55.6 289.2 Up 02:15:22 - 02:22:16 4572
Calipatria 02:19:02 -21.2 Dark Down 54.2 293.8 Up 02:15:35 - 02:22:29 4524
Beatty 02:18:49 -20.9 Dark Down 56.5 288.5 Up 02:15:22 - 02:22:16 4495
Tonopah 02:18:45 -20.7 Dark Down 57.2 286.7 Up 02:15:18 - 02:22:12 4479
PNWRO 02:18:16 -20.7 Dark Down 59.9 273.0 Up 02:14:49 - 02:21:43 4462
Anarchist Mountain Observatory 02:18:05 -20.7 Dark Down 60.3 267.4 Up 02:14:38 - 02:21:32 4459
Kelowna 02:18:03 -20.8 Dark Down 60.3 265.8 Up 02:14:36 - 02:21:30 4458
Tonasket 02:18:06 -20.6 Dark Down 60.3 267.9 Up 02:14:39 - 02:21:33 4451
Penticton 02:18:04 -20.7 Dark Down 60.4 266.3 Up 02:14:37 - 02:21:31 4450
Pasco 02:18:15 -20.5 Dark Down 60.1 272.4 Up 02:14:48 - 02:21:42 4449
Oliver 02:18:05 -20.6 Dark Down 60.4 267.0 Up 02:14:38 - 02:21:32 4447
Summerland 02:18:04 -20.6 Dark Down 60.5 266.1 Up 02:14:37 - 02:21:31 4444
Idyllwild 02:18:59 -20.4 Dark Down 55.3 292.9 Up 02:15:32 - 02:22:26 4442
Peachland 02:18:03 -20.6 Dark Down 60.5 265.8 Up 02:14:36 - 02:21:30 4439
Okanogan 02:18:08 -20.5 Dark Down 60.4 268.4 Up 02:14:41 - 02:21:35 4439
Brewster 02:18:09 -20.3 Dark Down 60.6 268.7 Up 02:14:42 - 02:21:36 4423
Kamloops 02:17:59 -20.3 Dark Down 60.8 263.6 Up 02:14:32 - 02:21:26 4409
Manson/Chelan 02:18:10 -20.1 Dark Down 60.8 268.8 Up 02:14:43 - 02:21:37 4397
Wenatchee 02:18:11 -19.9 Dark Down 60.9 269.5 Up 02:14:44 - 02:21:38 4381
Hawthorne 02:18:43 -19.7 Dark Down 58.4 285.6 Up 02:15:16 - 02:22:10 4380
Bishop 02:18:47 -19.7 Dark Down 57.9 287.5 Up 02:15:20 - 02:22:14 4378
Toppenish/White Swan 02:18:15 -19.7 Dark Down 61.0 271.3 Up 02:14:48 - 02:21:42 4365
Ellensburg 02:18:12 -19.7 Dark Down 61.1 270.1 Up 02:14:45 - 02:21:39 4362
Yakima 02:18:15 -19.6 Dark Down 61.1 270.8 Up 02:14:48 - 02:21:42 4356
Yerington 02:18:41 -19.4 Dark Down 59.0 284.7 Up 02:15:14 - 02:22:08 4348
Lee Vining 02:18:45 -19.2 Dark Down 58.6 286.4 Up 02:15:18 - 02:22:12 4333
Goldendale 02:18:16 -19.3 Dark Down 61.3 272.1 Up 02:14:49 - 02:21:43 4329
Cedarville 02:18:32 -19.1 Dark Down 60.3 280.1 Up 02:15:05 - 02:21:59 4315
Lakeview 02:18:30 -19.0 Dark Down 60.5 278.9 Up 02:15:03 - 02:21:57 4312
Reno 02:18:39 -19.0 Dark Down 59.6 283.6 Up 02:15:12 - 02:22:06 4308
Paisley 02:18:28 -19.0 Dark Down 60.7 277.9 Up 02:15:01 - 02:21:55 4306
Carson City 02:18:40 -18.9 Dark Down 59.5 284.2 Up 02:15:13 - 02:22:07 4304
Maupin 02:18:19 -19.0 Dark Down 61.4 273.1 Up 02:14:52 - 02:21:46 4303
Gardnerville 02:18:41 -18.9 Dark Down 59.4 284.6 Up 02:15:14 - 02:22:08 4303
The Dalles 02:18:17 -19.0 Dark Down 61.5 272.2 Up 02:14:50 - 02:21:44 4301
Wildwood 02:18:58 -18.9 Dark Down 56.9 292.3 Up 02:15:31 - 02:22:25 4299
North Lake 02:18:26 -18.8 Dark Down 61.1 276.7 Up 02:14:59 - 02:21:53 4289
Redmond 02:18:23 -18.8 Dark Down 61.4 274.7 Up 02:14:56 - 02:21:50 4284
Bend 02:18:22 -18.7 Dark Down 61.5 275.0 Up 02:14:55 - 02:21:49 4271
Portola 02:18:38 -18.5 Dark Down 60.1 282.9 Up 02:15:11 - 02:22:05 4264
Susanville 02:18:36 -18.5 Dark Down 60.4 281.8 Up 02:15:09 - 02:22:03 4261
Oregon Observatory 02:18:24 -18.6 Dark Down 61.5 275.2 Up 02:14:57 - 02:21:51 4260
Sisters 02:18:22 -18.5 Dark Down 61.7 274.4 Up 02:14:55 - 02:21:49 4257
La Pine/Gilchrist 02:18:24 -18.5 Dark Down 61.6 275.6 Up 02:14:57 - 02:21:51 4252
Gimple 02:18:37 -18.3 Dark Down 60.5 282.2 Up 02:15:10 - 02:22:04 4240
Greenville 02:18:36 -18.2 Dark Down 60.6 282.2 Up 02:15:09 - 02:22:03 4234
Quincy 02:18:37 -18.2 Dark Down 60.5 282.5 Up 02:15:10 - 02:22:04 4231
Fall River/Burney 02:18:33 -18.1 Dark Down 61.1 280.4 Up 02:15:06 - 02:22:00 4217
Klamath Falls 02:18:29 -18.0 Dark Down 61.6 278.1 Up 02:15:02 - 02:21:56 4209
Chiloquin 02:18:28 -18.0 Dark Down 61.7 277.4 Up 02:15:01 - 02:21:55 4209
Victoria 02:18:06 -18.0 Dark Down 63.0 264.9 Up 02:14:39 - 02:21:33 4192
CPSLO 02:18:53 -17.5 AT Down 58.9 290.3 Up 02:15:26 - 02:22:20 4161

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, (2022/11/23 02:19UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 11.20  98
37Gam Cyg      20:22:13.7 +40:15:24  2.2  6.54  93
PPM 083550     19:47:27.8 +38:24:28  5.6  1.45  87
PPM 083502     19:45:55.3 +39:53:20  7.0  0.42  87
PPM 083589     19:48:26.8 +39:51:58  9.0  0.07  87
342842         19:48:06.8 +39:51:16 14.4        87
Positions are for J2000

Event circumstances last updated at 2021/11/15 00:51:35 UT

Marc W. Buie, Southwest Research Institute

RECON