RECON: TNO occultation with 342842

Event between (342842) 08YB3 and star GA1300:06383514 with event index number of 1329924

Geocentric closest approach at 2023/09/02 10:06:42 UTC

J2000 position of star is 19:48:58.7 +40:25:33
Equinox of date position of star is 19:49:39.7 +40:28:36
Stellar brightness G=15.0, use SENSEUP=128
Star is 76 degrees from the moon. Moon is 92% illuminated.
TNO apparent brightness V=21.3

[RECON map]
TNO is 15.1 AU from the Sun and 14.6 AU from the Earth.
The TNO is moving 33.6 km/sec on the sky relative to the star, or, 11.4 arcsec/hr.
The 1-sigma error in the time of the event is 48 seconds.
The 1-sigma cross-track error in the shadow position is 1309 km.
The sky-plane scale is 10567.2 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, (2023/09/02 10:07UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:14.4 +45:21:57  1.3 10.75  68
37Gam Cyg      20:23:04.7 +40:20:01  2.2  6.34  70
PPM 083550     19:48:18.2 +38:28:03  5.6  2.04  76
PPM 058801     19:46:37.3 +40:36:51  7.3  0.62  77
PPM 058868     19:49:10.1 +40:28:40  9.8  0.12  76
342842         19:49:47.5 +40:29:11 15.0        76
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 24.3 km RECON observability=1.0 and success probability=24.4%
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 10:04:18 -25.6 Dark Up 38.2 290.2 Up 09:59:49 - 10:08:47 -801
Kelowna 10:04:18 -26.0 Dark Up 38.1 290.4 Up 09:59:49 - 10:08:47 -845
Summerland 10:04:18 -26.3 Dark Up 38.1 290.5 Up 09:59:49 - 10:08:47 -876
Penticton 10:04:18 -26.3 Dark Up 38.1 290.6 Up 09:59:49 - 10:08:47 -881
Oliver 10:04:19 -26.6 Dark Up 37.9 290.8 Up 09:59:50 - 10:08:48 -919
Anarchist Mountain Observatory 10:04:18 -26.6 Dark Up 37.7 291.1 Up 09:59:49 - 10:08:47 -935
Tonasket 10:04:18 -26.9 Dark Up 37.7 291.2 Up 09:59:49 - 10:08:47 -969
Okanogan 10:04:18 -27.2 Dark Up 37.7 291.4 Up 09:59:49 - 10:08:47 -1006
Victoria 10:04:24 -28.5 Dark Up 40.1 289.1 Up 09:59:55 - 10:08:53 -1036
Brewster 10:04:19 -27.5 Dark Up 37.7 291.5 Up 09:59:50 - 10:08:48 -1038
Manson/Chelan 10:04:19 -27.8 Dark Up 37.8 291.4 Up 09:59:50 - 10:08:48 -1066
Entiat 10:04:19 -28.1 Dark Up 37.8 291.5 Up 09:59:50 - 10:08:48 -1090
Wenatchee 10:04:20 -28.3 Dark Up 37.8 291.7 Up 09:59:51 - 10:08:49 -1118
Ellensburg 10:04:20 -28.7 Dark Up 37.7 291.9 Up 09:59:51 - 10:08:49 -1165
Yakima 10:04:20 -29.1 Dark Up 37.6 292.1 Up 09:59:51 - 10:08:49 -1208
Pasco 10:04:18 -28.8 Dark Up 36.6 293.1 Up 09:59:49 - 10:08:47 -1223
Toppenish/White Swan 10:04:20 -29.2 Dark Up 37.4 292.4 Up 09:59:51 - 10:08:49 -1229
PNWRO 10:04:18 -28.9 Dark Up 36.3 293.4 Up 09:59:49 - 10:08:47 -1246
Goldendale 10:04:21 -29.8 Dark Up 37.5 292.6 Up 09:59:52 - 10:08:50 -1293
The Dalles 10:04:22 -30.1 Dark Up 37.6 292.5 Up 09:59:53 - 10:08:51 -1322
Maupin 10:04:21 -30.4 Dark Up 37.4 292.9 Up 09:59:52 - 10:08:50 -1364
Redmond 10:04:22 -31.2 Dark Up 37.1 293.5 Up 09:59:53 - 10:08:51 -1461
Sisters 10:04:22 -31.3 Dark Up 37.4 293.3 Up 09:59:53 - 10:08:51 -1464
Bend 10:04:22 -31.4 Dark Up 37.1 293.5 Up 09:59:53 - 10:08:51 -1485
Niwot 10:04:00 -26.0 Dark Up 24.8 303.0 Low 09:59:31 - 10:08:29 -1503
Oregon Observatory 10:04:22 -31.6 Dark Up 37.1 293.6 Up 09:59:53 - 10:08:51 -1505
SwRI 10:04:00 -26.1 Dark Up 24.8 303.0 Low 09:59:31 - 10:08:29 -1517
La Pine/Gilchrist 10:04:23 -31.8 Dark Up 37.1 293.7 Up 09:59:54 - 10:08:52 -1527
North Lake 10:04:22 -31.9 Dark Up 36.5 294.3 Up 09:59:53 - 10:08:51 -1564
Paisley 10:04:21 -32.2 Dark Up 36.0 294.8 Up 09:59:52 - 10:08:50 -1617
Lakeview 10:04:22 -32.5 Dark Up 35.7 295.2 Up 09:59:53 - 10:08:51 -1666
Klamath Falls 10:04:23 -33.1 Dark Up 36.7 294.6 Up 09:59:54 - 10:08:52 -1682
Cedarville 10:04:21 -33.0 Dark Up 35.3 295.7 Up 09:59:52 - 10:08:50 -1731
Fall River/Burney 10:04:23 -33.9 Dark Up 35.9 295.5 Up 09:59:54 - 10:08:52 -1799
Susanville 10:04:22 -34.1 Dark Up 35.1 296.3 Up 09:59:53 - 10:08:51 -1853
Gimple 10:04:23 -34.4 Dark Up 35.1 296.3 Up 09:59:54 - 10:08:52 -1884
Greenville 10:04:23 -34.4 Dark Up 35.2 296.3 Up 09:59:54 - 10:08:52 -1885
Quincy 10:04:24 -34.6 Dark Up 35.1 296.4 Up 09:59:55 - 10:08:53 -1906
Portola 10:04:23 -34.5 Dark Up 34.7 296.7 Up 09:59:54 - 10:08:52 -1911
Reno 10:04:22 -34.4 Dark Up 34.2 297.1 Up 09:59:53 - 10:08:51 -1928
Carson City 10:04:22 -34.6 Dark Up 34.0 297.4 Up 09:59:53 - 10:08:51 -1964
Yerington 10:04:21 -34.5 Dark Up 33.5 297.7 Up 09:59:52 - 10:08:50 -1973
Gardnerville 10:04:22 -34.8 Dark Up 33.8 297.5 Up 09:59:53 - 10:08:51 -1988
Hawthorne 10:04:20 -34.6 Dark Up 32.9 298.2 Up 09:59:51 - 10:08:49 -2011
Tonopah 10:04:18 -34.2 Dark Up 31.7 299.0 Up 09:59:49 - 10:08:47 -2031
Lee Vining 10:04:21 -35.3 Dark Up 32.9 298.3 Up 09:59:52 - 10:08:50 -2076
Bishop 10:04:21 -35.3 Dark Up 32.2 298.9 Up 09:59:52 - 10:08:50 -2122
Beatty 10:04:18 -34.8 Dark Up 30.8 299.8 Up 09:59:49 - 10:08:47 -2136
Indian Springs 10:04:16 -34.5 Dark Up 29.9 300.3 Low 09:59:47 - 10:08:45 -2145
Henderson 10:04:16 -34.4 Dark Up 29.1 300.8 Low 09:59:47 - 10:08:45 -2181
Patrick 10:04:14 -34.2 Dark Up 28.0 301.5 Low 09:59:45 - 10:08:43 -2215
DCO 10:04:13 -34.0 Dark Up 27.4 301.9 Low 09:59:44 - 10:08:42 -2226
Searchlight/Boulder City 10:04:16 -34.8 Dark Up 28.8 301.1 Low 09:59:47 - 10:08:45 -2235
Kingman/Dolan Springs 10:04:15 -34.5 Dark Up 28.1 301.6 Low 09:59:46 - 10:08:44 -2241
Laughlin/Bullhead City 10:04:16 -34.8 Dark Up 28.4 301.4 Low 09:59:47 - 10:08:45 -2255
Mohave Valley 10:04:16 -35.0 Dark Up 28.3 301.5 Low 09:59:47 - 10:08:45 -2281
Lake Havasu City 10:04:16 -35.1 Dark Up 27.9 301.8 Low 09:59:47 - 10:08:45 -2314
George/Scottsdale 10:04:12 -34.1 Dark Up 25.7 302.9 Low 09:59:43 - 10:08:41 -2323
Parker 10:04:16 -35.4 Dark Up 27.7 301.9 Low 09:59:47 - 10:08:45 -2347
CPSLO 10:04:26 -38.1 Dark Up 32.7 299.3 Up 09:59:57 - 10:08:55 -2364
Blythe 10:04:16 -35.9 Dark Up 27.6 302.1 Low 09:59:47 - 10:08:45 -2404
Idyllwild 10:04:20 -37.1 Dark Up 29.1 301.4 Low 09:59:51 - 10:08:49 -2443
Wildwood 10:04:23 -37.9 Dark Up 30.7 300.6 Up 09:59:54 - 10:08:52 -2446
Calipatria 10:04:19 -36.8 Dark Up 28.0 302.0 Low 09:59:50 - 10:08:48 -2473
Yuma 10:04:17 -36.5 Dark Up 27.1 302.5 Low 09:59:48 - 10:08:46 -2493

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, (2023/09/02 10:07UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 10.75  68
37Gam Cyg      20:22:13.7 +40:15:24  2.2  6.34  70
PPM 083550     19:47:27.8 +38:24:28  5.6  2.04  76
PPM 058801     19:45:48.7 +40:33:19  7.3  0.62  77
PPM 058868     19:48:21.2 +40:25:04  9.8  0.12  76
342842         19:48:58.7 +40:25:33 15.0        76
Positions are for J2000

Event circumstances last updated at 2019/11/26 22:40:31 UT

Marc W. Buie, Southwest Research Institute

RECON