RECON: TNO occultation with 533398

Event between (533398) 14GA54 and star GA0780:06337560 with event index number of 1607449

Geocentric closest approach at 2022/05/30 08:34:51 UTC

J2000 position of star is 17:23:16.0 -10:52:50
Equinox of date position of star is 17:24:20.9 -10:53:52
Stellar brightness G=14.6, use SENSEUP=128
Star is 161 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=22.2

[RECON map]
TNO is 31.3 AU from the Sun and 30.3 AU from the Earth.
The TNO is moving 22.9 km/sec on the sky relative to the star, or, 3.7 arcsec/hr.
The 1-sigma error in the time of the event is 175 seconds.
The 1-sigma cross-track error in the shadow position is 1648 km.
The sky-plane scale is 22009.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=218.8 km assuming a 5% albedo -- 9.6 sec chord
Diameter=89.3 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is 8:5EEE
 
 
 
 
 
 

Star training set for 533398, (2022/05/30 08:35UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.1 -26:28:47  0.9 20.08 176
35Eta Oph      17:11:39.9 -15:45:04  2.6  5.77 167
53Nu Ser       17:22:05.4 -12:52:04  4.0  2.05 163
PPM 232976     17:22:56.8 -11:04:43  8.4  0.42 162
PPM 233010     17:24:44.3 -10:41:46  9.4  0.21 161
533398         17:24:30.6 -10:54:01 14.6       161
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 5.2 sigma about the mid-time.
The median site spacing is 16.2 km RECON observability=1.0 and success probability=19.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 08:35:22 -17.8 AT Down 29.1 176.0 Low 08:20:22 - 08:50:22 882
Summerland 08:35:23 -18.1 Dark Down 29.4 175.7 Low 08:20:23 - 08:50:23 864
Penticton 08:35:23 -18.1 Dark Down 29.5 175.8 Low 08:20:23 - 08:50:23 861
Okanagan Falls 08:35:23 -18.3 Dark Down 29.7 175.8 Low 08:20:23 - 08:50:23 850
Oliver 08:35:22 -18.5 Dark Down 29.9 175.8 Low 08:20:22 - 08:50:22 841
Anarchist Mountain Observatory 08:35:22 -18.6 Dark Down 30.0 176.0 Up 08:20:22 - 08:50:22 833
Oroville 08:35:22 -18.7 Dark Down 30.1 175.9 Up 08:20:22 - 08:50:22 828
Tonasket 08:35:22 -18.9 Dark Down 30.3 175.9 Up 08:20:22 - 08:50:22 815
Okanogan 08:35:23 -19.3 Dark Down 30.7 175.8 Up 08:20:23 - 08:50:23 795
Brewster 08:35:23 -19.6 Dark Down 30.9 175.5 Up 08:20:23 - 08:50:23 778
Manson/Chelan 08:35:24 -19.8 Dark Down 31.1 175.1 Up 08:20:24 - 08:50:24 764
Wenatchee 08:35:25 -20.3 Dark Down 31.6 174.9 Up 08:20:25 - 08:50:25 735
Ellensburg 08:35:26 -20.7 Dark Down 32.0 174.6 Up 08:20:26 - 08:50:26 709
Yakima 08:35:26 -21.1 Dark Down 32.4 174.6 Up 08:20:26 - 08:50:26 684
Pasco 08:35:21 -21.3 Dark Down 32.8 176.2 Up 08:20:21 - 08:50:21 674
Toppenish/White Swan 08:35:25 -21.3 Dark Down 32.6 174.7 Up 08:20:25 - 08:50:25 673
PNWRO 08:35:20 -21.5 Dark Down 33.0 176.4 Up 08:20:20 - 08:50:20 660
George/Umatilla 08:35:22 -21.7 Dark Down 33.1 175.9 Up 08:20:22 - 08:50:22 652
Goldendale 08:35:27 -21.9 Dark Down 33.1 174.2 Up 08:20:27 - 08:50:27 636
The Dalles 08:35:28 -22.2 Dark Down 33.3 173.8 Up 08:20:28 - 08:50:28 619
Maupin 08:35:28 -22.6 Dark Down 33.7 173.9 Up 08:20:28 - 08:50:28 594
Madras/Culver 08:35:28 -23.1 Dark Down 34.3 173.8 Up 08:20:28 - 08:50:28 559
Redmond 08:35:28 -23.5 Dark Down 34.6 173.7 Up 08:20:28 - 08:50:28 536
Sisters 08:35:30 -23.5 Dark Down 34.6 173.2 Up 08:20:30 - 08:50:30 535
Bend 08:35:29 -23.7 Dark Down 34.8 173.5 Up 08:20:29 - 08:50:29 521
Oregon Observatory 08:35:29 -23.9 Dark Down 35.0 173.3 Up 08:20:29 - 08:50:29 509
La Pine/Gilchrist 08:35:29 -24.1 Dark Down 35.2 173.3 Up 08:20:29 - 08:50:29 496
North Lake 08:35:27 -24.5 Dark Down 35.7 173.9 Up 08:20:27 - 08:50:27 472
Paisley 08:35:26 -25.0 Dark Down 36.3 174.3 Up 08:20:26 - 08:50:26 438
Chiloquin 08:35:31 -25.3 Dark Down 36.3 172.7 Up 08:20:31 - 08:50:31 420
Lakeview 08:35:26 -25.5 Dark Down 36.8 174.5 Up 08:20:26 - 08:50:26 406
Klamath Falls 08:35:31 -25.6 Dark Down 36.6 172.8 Up 08:20:31 - 08:50:31 397
Tulelake 08:35:30 -25.8 Dark Down 36.9 173.1 Up 08:20:30 - 08:50:30 382
Cedarville 08:35:25 -26.1 Dark Down 37.4 174.7 Up 08:20:25 - 08:50:25 363
SwRI 08:34:31 -24.3 Dark Down 38.2 193.0 Up 08:19:31 - 08:49:31 341
Fall River/Burney 08:35:29 -26.7 Dark Down 37.8 173.2 Up 08:20:29 - 08:50:29 320
Susanville 08:35:27 -27.3 Dark Down 38.5 174.0 Up 08:20:27 - 08:50:27 282
Gimple 08:35:28 -27.6 Dark Down 38.8 173.7 Up 08:20:28 - 08:50:28 261
Greenville 08:35:28 -27.6 Dark Down 38.8 173.6 Up 08:20:28 - 08:50:28 261
Quincy 08:35:28 -27.8 Dark Down 39.0 173.6 Up 08:20:28 - 08:50:28 246
Portola 08:35:26 -27.8 Dark Down 39.1 174.2 Up 08:20:26 - 08:50:26 241
Reno 08:35:24 -28.0 Dark Down 39.4 175.0 Up 08:20:24 - 08:50:24 227
Carson City 08:35:24 -28.4 Dark Down 39.8 175.0 Up 08:20:24 - 08:50:24 202
Yerington 08:35:21 -28.5 Dark Down 40.0 175.8 Up 08:20:21 - 08:50:21 193
Gardnerville 08:35:23 -28.6 Dark Down 40.0 175.0 Up 08:20:23 - 08:50:23 185
Hawthorne 08:35:19 -28.8 Dark Down 40.5 176.4 Up 08:20:19 - 08:50:19 163
Tonopah 08:35:14 -29.1 Dark Down 41.0 178.2 Up 08:20:14 - 08:50:14 140
Lee Vining 08:35:21 -29.5 Dark Down 41.1 175.8 Up 08:20:21 - 08:50:21 119
Bishop 08:35:18 -29.9 Dark Down 41.7 176.7 Up 08:20:18 - 08:50:18 80
Beatty 08:35:12 -30.1 Dark Down 42.2 178.8 Up 08:20:12 - 08:50:12 58
Indian Springs 08:35:08 -30.2 Dark Down 42.5 180.2 Up 08:20:08 - 08:50:08 41
Lone Pine 08:35:17 -30.6 Dark Down 42.5 177.1 Up 08:20:17 - 08:50:17 26
Henderson 08:35:05 -30.6 Dark Down 43.1 181.1 Up 08:20:05 - 08:50:05 5
Patrick 08:35:00 -30.9 Dark Down 43.7 182.6 Up 08:20:00 - 08:50:00 -35
Searchlight/Boulder City 08:35:05 -31.1 Dark Down 43.6 181.2 Up 08:20:05 - 08:50:05 -38
Kingman/Dolan Springs 08:35:01 -31.2 Dark Down 43.9 182.4 Up 08:20:01 - 08:50:01 -54
Laughlin/Bullhead City 08:35:03 -31.3 Dark Down 43.9 181.7 Up 08:20:03 - 08:50:03 -59
Mohave Valley 08:35:03 -31.6 Dark Down 44.2 181.7 Up 08:20:03 - 08:50:03 -80
CPSLO 08:35:27 -32.3 Dark Down 43.6 173.5 Up 08:20:27 - 08:50:27 -93
Lake Havasu City 08:35:02 -31.9 Dark Down 44.6 182.0 Up 08:20:02 - 08:50:02 -109
Parker 08:35:02 -32.3 Dark Down 45.0 182.1 Up 08:20:02 - 08:50:02 -136
Wildwood 08:35:19 -33.2 Dark Down 45.0 176.2 Up 08:20:19 - 08:50:19 -171
Blythe 08:35:03 -32.8 Dark Down 45.5 181.7 Up 08:20:03 - 08:50:03 -179
Idyllwild 08:35:11 -33.2 Dark Down 45.4 178.8 Up 08:20:11 - 08:50:11 -185
Calipatria 08:35:06 -33.5 Dark Down 46.0 180.4 Up 08:20:06 - 08:50:06 -225
Yuma 08:35:03 -33.7 Dark Down 46.4 181.7 Up 08:20:03 - 08:50:03 -253

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 533398, (2022/05/30 08:35UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 20.08 176
35Eta Oph      17:10:22.7 -15:43:29  2.6  5.77 167
53Nu Ser       17:20:49.7 -12:50:49  4.0  2.05 163
PPM 232976     17:21:42.1 -11:03:30  8.4  0.42 162
PPM 233010     17:23:29.8 -10:40:36  9.4  0.21 161
533398         17:23:16.0 -10:52:50 14.6       161
Positions are for J2000

Event circumstances last updated at 2019/07/04 21:55:51 UT

Marc W. Buie, Southwest Research Institute

RECON