RECON: TNO occultation with 385437

Event between (385437) 03GH55 and star GA0680:07340384 with event index number of 2755680

Geocentric closest approach at 2029/05/04 09:42:22 UTC

J2000 position of star is 16:30:30.5 -21:00:05
Equinox of date position of star is 16:31:49.2 -21:02:53
Stellar brightness G=16.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 53 degrees from the moon. Moon is 60% illuminated.
TNO apparent brightness V=22.2

[RECON map]
TNO is 41.6 AU from the Sun and 40.7 AU from the Earth.
The TNO is moving 21.7 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 226 seconds.
The 1-sigma cross-track error in the shadow position is 2212 km.
The sky-plane scale is 29489.5 km/arcsec.

The TNO has an absolute magnitude Hv=6.0
Diameter=382.0 km assuming a 5% albedo -- 17.6 sec chord
Diameter=155.9 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 385437, (2029/05/04 09:42UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.7 -26:29:40  0.9  5.44  53
8Bet1Sco       16:07:08.9 -19:53:00  2.6  5.99  59
4Psi Oph       16:25:49.5 -20:06:12  4.2  1.78  55
PPM 265647     16:34:10.2 -20:48:45  8.3  0.51  53
PPM 265612     16:32:36.3 -20:53:04  8.9  0.20  53
385437         16:32:14.7 -21:03:46 16.0        53
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 4.0 sigma about the mid-time.
The median site spacing is 14.5 km RECON observability=0.9 and success probability=9.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 09:42:21 -13.3 AT Up 15.8 194.2 Really Low 09:27:21 - 09:57:21 594
Kamloops 09:43:05 -19.4 Dark Up 18.3 180.3 Really Low 09:28:05 - 09:58:05 440
Kelowna 09:43:02 -19.8 Dark Up 19.1 181.2 Really Low 09:28:02 - 09:58:02 421
Peachland 09:43:03 -20.0 Dark Up 19.2 180.9 Really Low 09:28:03 - 09:58:03 414
Summerland 09:43:03 -20.1 Dark Up 19.4 181.0 Really Low 09:28:03 - 09:58:03 410
Penticton 09:43:02 -20.2 Dark Up 19.5 181.1 Really Low 09:28:02 - 09:58:02 408
Oliver 09:43:02 -20.5 Dark Up 19.8 181.1 Really Low 09:28:02 - 09:58:02 395
Anarchist Mountain Observatory 09:43:01 -20.6 Dark Up 20.0 181.3 Really Low 09:28:01 - 09:58:01 392
Tonasket 09:43:02 -20.9 Dark Up 20.3 181.3 Low 09:28:02 - 09:58:02 379
Okanogan 09:43:02 -21.2 Dark Up 20.6 181.1 Low 09:28:02 - 09:58:02 364
Brewster 09:43:03 -21.5 Dark Up 20.9 180.9 Low 09:28:03 - 09:58:03 351
Manson/Chelan 09:43:04 -21.8 Dark Up 21.1 180.5 Low 09:28:04 - 09:58:04 339
Victoria 09:43:15 -22.2 Dark Up 20.4 177.3 Low 09:28:15 - 09:58:15 325
Wenatchee 09:43:04 -22.3 Dark Up 21.6 180.4 Low 09:28:04 - 09:58:04 318
Ellensburg 09:43:05 -22.7 Dark Up 22.0 180.2 Low 09:28:05 - 09:58:05 299
Yakima 09:43:05 -23.1 Dark Up 22.4 180.1 Low 09:28:05 - 09:58:05 282
PNWRO 09:42:59 -23.1 Dark Up 23.0 181.8 Low 09:27:59 - 09:57:59 276
Toppenish/White Swan 09:43:04 -23.2 Dark Up 22.6 180.3 Low 09:28:04 - 09:58:04 275
Goldendale 09:43:05 -23.8 Dark Up 23.2 179.9 Low 09:28:05 - 09:58:05 246
The Dalles 09:43:07 -24.2 Dark Up 23.4 179.5 Low 09:28:07 - 09:58:07 232
Maupin 09:43:06 -24.5 Dark Up 23.8 179.6 Low 09:28:06 - 09:58:06 215
Sisters 09:43:08 -25.4 Dark Up 24.7 179.1 Low 09:28:08 - 09:58:08 169
Bend 09:43:07 -25.6 Dark Up 24.9 179.4 Low 09:28:07 - 09:58:07 162
Oregon Observatory 09:43:07 -25.8 Dark Up 25.1 179.2 Low 09:28:07 - 09:58:07 152
North Lake 09:43:05 -26.2 Dark Up 25.8 179.8 Low 09:28:05 - 09:58:05 129
Dunrhomin 09:42:04 -21.9 Dark Up 27.1 196.1 Low 09:27:04 - 09:57:04 122
CU-SBO 09:42:04 -22.1 Dark Up 27.4 196.0 Low 09:27:04 - 09:57:04 109
Lakeview 09:43:03 -26.9 Dark Up 26.8 180.4 Low 09:28:03 - 09:58:03 84
Chiloquin 09:43:08 -27.1 Dark Up 26.4 178.8 Low 09:28:08 - 09:58:08 83
Klamath Falls 09:43:08 -27.3 Dark Up 26.8 178.9 Low 09:28:08 - 09:58:08 68
Cedarville 09:43:02 -27.4 Dark Up 27.5 180.5 Low 09:28:02 - 09:58:02 54
Fall River/Burney 09:43:06 -28.3 Dark Up 27.9 179.3 Low 09:28:06 - 09:58:06 13
Susanville 09:43:03 -28.6 Dark Up 28.6 180.0 Low 09:28:03 - 09:58:03 -10
Gimple 09:43:04 -28.9 Dark Up 28.9 179.8 Low 09:28:04 - 09:58:04 -28
Greenville 09:43:04 -28.9 Dark Up 28.9 179.7 Low 09:28:04 - 09:58:04 -29
Quincy 09:43:04 -29.1 Dark Up 29.1 179.7 Low 09:28:04 - 09:58:04 -39
Portola 09:43:02 -29.0 Dark Up 29.2 180.2 Low 09:28:02 - 09:58:02 -39
Reno 09:43:00 -29.0 Dark Up 29.4 180.9 Low 09:28:00 - 09:58:00 -45
Carson City 09:42:59 -29.3 Dark Up 29.8 181.0 Low 09:27:59 - 09:57:59 -64
Yerington 09:42:57 -29.2 Dark Up 30.0 181.6 Low 09:27:57 - 09:57:57 -67
Gardnerville 09:42:59 -29.5 Dark Up 30.1 181.0 Up 09:27:59 - 09:57:59 -77
Hawthorne 09:42:55 -29.4 Dark Up 30.4 182.2 Up 09:27:55 - 09:57:55 -86
Tonopah 09:42:49 -29.3 Dark Up 30.9 183.7 Up 09:27:49 - 09:57:49 -94
Lee Vining 09:42:56 -30.1 Dark Up 31.0 181.7 Up 09:27:56 - 09:57:56 -123
Bishop 09:42:53 -30.3 Dark Up 31.6 182.5 Up 09:27:53 - 09:57:53 -148
Beatty 09:42:46 -30.0 Dark Up 32.0 184.3 Up 09:27:46 - 09:57:46 -155
Indian Springs 09:42:42 -29.8 Dark Up 32.2 185.4 Up 09:27:42 - 09:57:42 -162
Henderson 09:42:39 -30.0 Dark Up 32.7 186.2 Up 09:27:39 - 09:57:39 -186
Patrick 09:42:34 -29.9 Dark Up 33.2 187.5 Up 09:27:34 - 09:57:34 -211
Kingman/Dolan Springs 09:42:34 -30.2 Dark Up 33.5 187.3 Up 09:27:34 - 09:57:34 -226
Laughlin/Bullhead City 09:42:36 -30.5 Dark Up 33.5 186.7 Up 09:27:36 - 09:57:36 -234
Mohave Valley 09:42:36 -30.7 Dark Up 33.8 186.8 Up 09:27:36 - 09:57:36 -250
Lake Havasu City 09:42:35 -30.9 Dark Up 34.2 187.1 Up 09:27:35 - 09:57:35 -272
Parker 09:42:34 -31.2 Dark Up 34.5 187.1 Up 09:27:34 - 09:57:34 -293
George/Scottsdale 09:42:24 -30.3 Dark Up 34.7 189.9 Up 09:27:24 - 09:57:24 -295
Idyllwild 09:42:44 -32.6 Dark Up 35.1 184.5 Up 09:27:44 - 09:57:44 -345
Wildwood 09:42:52 -33.2 Dark Up 34.9 182.3 Up 09:27:52 - 09:57:52 -347
Calipatria 09:42:39 -32.6 Dark Up 35.7 185.8 Up 09:27:39 - 09:57:39 -371
Yuma 09:42:35 -32.5 Dark Up 36.0 186.9 Up 09:27:35 - 09:57:35 -388

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 385437, (2029/05/04 09:42UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  5.44  53
8Bet1Sco       16:05:26.2 -19:48:20  2.6  5.99  59
4Psi Oph       16:24:06.1 -20:02:15  4.2  1.78  55
PPM 265647     16:32:26.2 -20:45:08  8.3  0.51  53
PPM 265612     16:30:52.2 -20:49:23  8.9  0.20  53
385437         16:30:30.5 -21:00:05 16.0        53
Positions are for J2000

Event circumstances last updated at 2022/02/27 03:31:43 UT

Marc W. Buie, Southwest Research Institute

RECON