RECON: TNO occultation with 342842

Event between (342842) 08YB3 and star GA1300:06649203 with event index number of 1329883

Geocentric closest approach at 2023/08/13 07:25:17 UTC

J2000 position of star is 19:54:51.0 +41:28:18
Equinox of date position of star is 19:55:31.5 +41:31:31
Stellar brightness G=14.8, use SENSEUP=128
Star is 111 degrees from the moon. Moon is 9% illuminated.
TNO apparent brightness V=21.3

[RECON map]
TNO is 15.0 AU from the Sun and 14.5 AU from the Earth.
The TNO is moving 33.0 km/sec on the sky relative to the star, or, 11.3 arcsec/hr.
The 1-sigma error in the time of the event is 36 seconds.
The 1-sigma cross-track error in the shadow position is 1642 km.
The sky-plane scale is 10518.8 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, (2023/08/13 07:25UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:14.3 +45:21:56  1.3  9.27 105
37Gam Cyg      20:23:04.6 +40:20:00  2.2  5.32 111
PPM 059108     19:58:43.8 +42:19:33  6.5  0.98 110
PPM 058992     19:54:26.7 +41:25:07  6.6  0.25 111
PPM 059031     19:55:58.4 +41:20:59  9.0  0.19 111
342842         19:55:39.1 +41:32:06 14.8       110
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 25.3 km RECON observability=1.0 and success probability=23.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 07:24:34 -24.5 Dark Down 76.6 234.6 Up 07:21:04 - 07:28:03 -932
Kelowna 07:24:34 -24.9 Dark Down 76.9 235.6 Up 07:21:05 - 07:28:04 -965
Victoria 07:24:44 -25.6 Dark Down 79.8 230.4 Up 07:21:15 - 07:28:14 -970
Summerland 07:24:35 -25.1 Dark Down 77.2 236.1 Up 07:21:06 - 07:28:05 -986
Penticton 07:24:35 -25.2 Dark Down 77.1 236.6 Up 07:21:06 - 07:28:05 -996
Oliver 07:24:35 -25.5 Dark Down 77.3 237.9 Up 07:21:06 - 07:28:05 -1031
Anarchist Mountain Observatory 07:24:35 -25.7 Dark Down 77.3 239.0 Up 07:21:06 - 07:28:05 -1055
Tonasket 07:24:36 -26.0 Dark Down 77.5 240.1 Up 07:21:06 - 07:28:05 -1084
Okanogan 07:24:37 -26.3 Dark Down 77.8 241.1 Up 07:21:08 - 07:28:07 -1113
Brewster 07:24:37 -26.6 Dark Down 78.0 241.7 Up 07:21:08 - 07:28:07 -1134
Manson/Chelan 07:24:39 -26.7 Dark Down 78.3 241.8 Up 07:21:09 - 07:28:08 -1143
Entiat 07:24:39 -26.9 Dark Down 78.5 242.6 Up 07:21:10 - 07:28:09 -1162
Wenatchee 07:24:39 -27.2 Dark Down 78.6 243.5 Up 07:21:10 - 07:28:09 -1185
Ellensburg 07:24:41 -27.6 Dark Down 79.0 244.9 Up 07:21:11 - 07:28:10 -1219
Yakima 07:24:41 -28.0 Dark Down 79.1 246.8 Up 07:21:12 - 07:28:11 -1259
Toppenish/White Swan 07:24:41 -28.2 Dark Down 79.1 248.2 Up 07:21:12 - 07:28:11 -1286
Goldendale 07:24:43 -28.7 Dark Down 79.6 250.0 Up 07:21:13 - 07:28:12 -1327
The Dalles 07:24:44 -28.8 Dark Down 79.9 250.5 Up 07:21:14 - 07:28:13 -1337
Pasco 07:24:39 -28.5 Dark Down 78.3 251.2 Up 07:21:09 - 07:28:08 -1340
PNWRO 07:24:39 -28.7 Dark Down 78.3 252.7 Up 07:21:09 - 07:28:08 -1373
Maupin 07:24:44 -29.3 Dark Down 79.9 252.9 Up 07:21:15 - 07:28:14 -1382
Sisters 07:24:46 -30.0 Dark Down 80.5 257.0 Up 07:21:17 - 07:28:16 -1452
Redmond 07:24:46 -30.1 Dark Down 80.2 257.8 Up 07:21:16 - 07:28:15 -1469
Bend 07:24:47 -30.3 Dark Down 80.4 258.8 Up 07:21:17 - 07:28:16 -1485
Oregon Observatory 07:24:47 -30.5 Dark Down 80.5 259.6 Up 07:21:17 - 07:28:16 -1498
La Pine/Gilchrist 07:24:47 -30.7 Dark Down 80.6 260.7 Up 07:21:18 - 07:28:17 -1516
North Lake 07:24:47 -31.2 Dark Down 80.2 264.0 Up 07:21:17 - 07:28:16 -1581
Paisley 07:24:47 -31.8 Dark Down 80.0 267.5 Up 07:21:17 - 07:28:16 -1649
Klamath Falls 07:24:50 -32.0 Dark Down 80.9 269.4 Up 07:21:21 - 07:28:20 -1650
Lakeview 07:24:47 -32.3 Dark Down 79.8 270.5 Up 07:21:18 - 07:28:17 -1706
Cedarville 07:24:48 -33.0 Dark Down 79.7 274.3 Up 07:21:18 - 07:28:17 -1778
Fall River/Burney 07:24:51 -33.2 Dark Down 80.5 276.7 Up 07:21:22 - 07:28:21 -1781
Susanville 07:24:50 -34.0 Dark Down 79.9 280.3 Up 07:21:21 - 07:28:20 -1871
Greenville 07:24:52 -34.2 Dark Down 80.1 281.9 Up 07:21:22 - 07:28:21 -1887
Gimple 07:24:52 -34.2 Dark Down 80.0 281.9 Up 07:21:22 - 07:28:21 -1890
Quincy 07:24:52 -34.4 Dark Down 80.0 283.1 Up 07:21:22 - 07:28:21 -1907
Portola 07:24:51 -34.6 Dark Down 79.6 283.6 Up 07:21:21 - 07:28:20 -1938
Reno 07:24:50 -35.0 Dark Down 79.1 284.7 Up 07:21:20 - 07:28:19 -1988
Carson City 07:24:50 -35.3 Dark Down 79.0 286.5 Up 07:21:21 - 07:28:20 -2025
Gardnerville 07:24:51 -35.6 Dark Down 78.9 287.6 Up 07:21:21 - 07:28:20 -2051
Yerington 07:24:49 -35.6 Dark Down 78.4 287.1 Up 07:21:20 - 07:28:19 -2067
Hawthorne 07:24:48 -36.1 Dark Down 77.9 288.9 Up 07:21:19 - 07:28:18 -2133
Lee Vining 07:24:51 -36.6 Dark Down 78.1 291.7 Up 07:21:21 - 07:28:20 -2171
Tonopah 07:24:46 -36.8 Dark Down 76.7 290.1 Up 07:21:16 - 07:28:15 -2230
Bishop 07:24:50 -37.3 Dark Down 77.3 293.7 Up 07:21:20 - 07:28:19 -2257
Niwot 07:24:15 -35.0 Dark Down 68.4 283.0 Up 07:20:46 - 07:27:45 -2359
Beatty 07:24:47 -38.0 Dark Down 75.9 294.2 Up 07:21:17 - 07:28:16 -2362
SwRI 07:24:16 -35.1 Dark Down 68.4 283.2 Up 07:20:46 - 07:27:45 -2367
CPSLO 07:24:58 -39.0 Dark Down 77.9 304.6 Up 07:21:29 - 07:28:28 -2374
Indian Springs 07:24:44 -38.4 Dark Down 75.0 294.7 Up 07:21:15 - 07:28:14 -2432
Henderson 07:24:43 -39.0 Dark Down 74.3 296.0 Up 07:21:14 - 07:28:13 -2509
Searchlight/Boulder City 07:24:44 -39.6 Dark Down 74.0 297.7 Up 07:21:15 - 07:28:14 -2569
Wildwood 07:24:55 -40.5 Dark Down 75.8 305.8 Up 07:21:25 - 07:28:24 -2573
Patrick 07:24:42 -39.7 Dark Down 73.2 297.2 Up 07:21:12 - 07:28:11 -2609
Laughlin/Bullhead City 07:24:44 -39.9 Dark Down 73.6 298.4 Up 07:21:14 - 07:28:13 -2610
Kingman/Dolan Springs 07:24:42 -39.9 Dark Down 73.2 297.9 Up 07:21:13 - 07:28:12 -2626
Mohave Valley 07:24:44 -40.2 Dark Down 73.5 299.2 Up 07:21:14 - 07:28:13 -2638
DCO 07:24:40 -40.1 Dark Down 72.5 297.6 Up 07:21:11 - 07:28:10 -2663
Idyllwild 07:24:51 -41.1 Dark Down 74.3 304.6 Up 07:21:21 - 07:28:20 -2679
Lake Havasu City 07:24:44 -40.6 Dark Down 73.1 300.1 Up 07:21:14 - 07:28:13 -2686
Parker 07:24:45 -41.0 Dark Down 72.9 301.1 Up 07:21:15 - 07:28:14 -2722
Blythe 07:24:46 -41.5 Dark Down 72.8 302.8 Up 07:21:16 - 07:28:15 -2765
Calipatria 07:24:49 -41.9 Dark Down 73.2 305.0 Up 07:21:19 - 07:28:18 -2781
George/Scottsdale 07:24:39 -41.5 Dark Down 70.9 300.4 Up 07:21:09 - 07:28:08 -2844
Yuma 07:24:47 -42.4 Dark Down 72.3 305.3 Up 07:21:18 - 07:28:17 -2855

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, (2023/08/13 07:25UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3  9.27 105
37Gam Cyg      20:22:13.7 +40:15:24  2.2  5.32 111
PPM 059108     19:57:56.1 +42:15:39  6.5  0.98 110
PPM 058992     19:53:38.5 +41:21:21  6.6  0.25 111
PPM 059031     19:55:10.1 +41:17:11  9.0  0.19 111
342842         19:54:51.0 +41:28:18 14.8       111
Positions are for J2000

Event circumstances last updated at 2019/11/26 22:39:59 UT

Marc W. Buie, Southwest Research Institute

RECON