RECON: TNO occultation with 523700

Event between (523700) 14GM54 and star GA1060:16247790 with event index number of 1321836

Geocentric closest approach at 2024/06/02 07:36:15 UTC

J2000 position of star is 20:17:49.2 +17:04:52
Equinox of date position of star is 20:18:42.4 +17:08:33
Stellar brightness G=13.2, use SENSEUP=32
Star is 70 degrees from the moon. Moon is 22% illuminated.
TNO apparent brightness V=21.8

[RECON map]
TNO is 28.4 AU from the Sun and 28.0 AU from the Earth.
The TNO is moving 14.8 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 281 seconds.
The 1-sigma cross-track error in the shadow position is 3338 km.
The sky-plane scale is 20306.8 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=229.1 km assuming a 5% albedo -- 15.5 sec chord
Diameter=93.5 km assuming a 30% albedo -- 6.3 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 

Star training set for 523700, (2024/06/02 07:36UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:15.9 +45:22:07  1.3 28.63  68
Tarazed        19:47:25.2 +10:40:28  2.7 10.02  78
PPM 138344     20:27:30.1 +17:23:49  6.2  2.06  68
PPM 138084     20:19:41.8 +17:26:23  8.1  0.33  70
PPM 138051     20:18:39.7 +17:10:20 10.6  0.07  70
523700         20:18:56.1 +17:09:30 13.2        69
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 3.2 sigma about the mid-time.
The median site spacing is 25.2 km RECON observability=1.0 and success probability=15.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 07:41:52 -17.8 AT Down 34.0 104.5 Up 07:26:52 - 07:56:52 814
Summerland 07:41:53 -18.1 Dark Down 33.9 104.1 Up 07:26:53 - 07:56:53 781
Penticton 07:41:53 -18.1 Dark Down 34.0 104.1 Up 07:26:53 - 07:56:53 774
Okanagan Falls 07:41:53 -18.3 Dark Down 34.0 104.0 Up 07:26:53 - 07:56:53 754
Oliver 07:41:53 -18.5 Dark Down 34.1 103.9 Up 07:26:53 - 07:56:53 737
Anarchist Mountain Observatory 07:41:52 -18.7 Dark Down 34.2 104.0 Up 07:26:52 - 07:56:52 719
Oroville 07:41:53 -18.7 Dark Down 34.2 103.8 Up 07:26:53 - 07:56:53 711
Tonasket 07:41:54 -19.0 Dark Down 34.3 103.7 Up 07:26:54 - 07:56:54 686
Okanogan 07:41:54 -19.3 Dark Down 34.2 103.4 Up 07:26:54 - 07:56:54 649
Brewster 07:41:55 -19.6 Dark Down 34.2 103.0 Up 07:26:55 - 07:56:55 619
Manson/Chelan 07:41:57 -19.8 Dark Down 34.0 102.6 Up 07:26:57 - 07:56:57 596
Entiat 07:41:57 -20.0 Dark Down 34.0 102.4 Up 07:26:57 - 07:56:57 572
Wenatchee 07:41:58 -20.2 Dark Down 34.0 102.1 Up 07:26:58 - 07:56:58 544
Ellensburg 07:41:59 -20.6 Dark Down 33.9 101.7 Up 07:26:59 - 07:56:59 499
Yakima 07:42:00 -21.0 Dark Down 34.0 101.4 Up 07:27:00 - 07:57:00 455
Toppenish/White Swan 07:41:59 -21.2 Dark Down 34.1 101.4 Up 07:26:59 - 07:56:59 432
Pasco 07:41:56 -21.4 Dark Down 35.0 102.3 Up 07:26:56 - 07:56:56 423
PNWRO 07:41:55 -21.7 Dark Down 35.2 102.3 Up 07:26:55 - 07:56:55 397
George/Umatilla 07:41:56 -21.8 Dark Down 34.9 101.9 Up 07:26:56 - 07:56:56 386
Goldendale 07:42:01 -21.8 Dark Down 34.0 100.7 Up 07:27:01 - 07:57:01 371
The Dalles 07:42:03 -22.0 Dark Down 33.8 100.2 Up 07:27:03 - 07:57:03 346
Maupin 07:42:02 -22.4 Dark Down 33.9 100.0 Up 07:27:02 - 07:57:02 301
Madras/Culver 07:42:03 -22.9 Dark Down 34.0 99.6 Up 07:27:03 - 07:57:03 241
Sisters 07:42:05 -23.2 Dark Down 33.7 99.1 Up 07:27:05 - 07:57:05 203
Redmond 07:42:04 -23.3 Dark Down 34.0 99.4 Up 07:27:04 - 07:57:04 202
Bend 07:42:04 -23.5 Dark Down 33.9 99.1 Up 07:27:04 - 07:57:04 178
Oregon Observatory 07:42:05 -23.7 Dark Down 33.9 98.9 Up 07:27:05 - 07:57:05 159
La Pine/Gilchrist 07:42:05 -23.9 Dark Down 33.9 98.7 Up 07:27:05 - 07:57:05 136
North Lake 07:42:04 -24.3 Dark Down 34.4 98.9 Up 07:27:04 - 07:57:04 90
Paisley 07:42:03 -24.9 Dark Down 34.7 98.8 Up 07:27:03 - 07:57:03 31
Chiloquin 07:42:08 -24.9 Dark Down 33.8 97.7 Up 07:27:08 - 07:57:08 14
Klamath Falls 07:42:08 -25.3 Dark Down 33.9 97.6 Up 07:27:08 - 07:57:08 -24
Lakeview 07:42:03 -25.4 Dark Down 34.9 98.6 Up 07:27:03 - 07:57:03 -24
Tulelake 07:42:07 -25.6 Dark Down 34.1 97.6 Up 07:27:07 - 07:57:07 -53
Cedarville 07:42:03 -26.1 Dark Down 35.1 98.3 Up 07:27:03 - 07:57:03 -96
Niwot 07:41:07 -26.8 Dark Down 46.3 109.0 Up 07:26:07 - 07:56:07 -114
SwRI 07:41:08 -27.0 Dark Down 46.3 108.8 Up 07:26:08 - 07:56:08 -127
Fall River/Burney 07:42:07 -26.5 Dark Down 34.3 97.0 Up 07:27:07 - 07:57:07 -152
Susanville 07:42:05 -27.2 Dark Down 34.9 97.1 Up 07:27:05 - 07:57:05 -220
Gimple 07:42:06 -27.4 Dark Down 34.8 96.8 Up 07:27:06 - 07:57:06 -251
Greenville 07:42:06 -27.4 Dark Down 34.8 96.7 Up 07:27:06 - 07:57:06 -251
Quincy 07:42:06 -27.6 Dark Down 34.8 96.6 Up 07:27:06 - 07:57:06 -273
Portola 07:42:05 -27.8 Dark Down 35.2 96.8 Up 07:27:05 - 07:57:05 -286
Reno 07:42:03 -28.1 Dark Down 35.7 97.1 Up 07:27:03 - 07:57:03 -313
Carson City 07:42:03 -28.4 Dark Down 35.7 96.9 Up 07:27:03 - 07:57:03 -353
Yerington 07:42:01 -28.7 Dark Down 36.2 97.2 Up 07:27:01 - 07:57:01 -372
Gardnerville 07:42:03 -28.7 Dark Down 35.8 96.7 Up 07:27:03 - 07:57:03 -379
Hawthorne 07:41:59 -29.2 Dark Down 36.7 97.2 Up 07:26:59 - 07:56:59 -421
Tonopah 07:41:54 -29.7 Dark Down 37.9 97.8 Up 07:26:54 - 07:56:54 -465
Lee Vining 07:42:01 -29.7 Dark Down 36.4 96.4 Up 07:27:01 - 07:57:01 -485
Bishop 07:41:59 -30.3 Dark Down 37.0 96.5 Up 07:26:59 - 07:56:59 -548
Beatty 07:41:53 -30.8 Dark Down 38.4 97.2 Up 07:26:53 - 07:56:53 -590
Indian Springs 07:41:49 -31.2 Dark Down 39.2 97.7 Up 07:26:49 - 07:56:49 -619
Lone Pine 07:41:57 -31.1 Dark Down 37.4 96.1 Up 07:26:57 - 07:56:57 -630
Henderson 07:41:46 -31.7 Dark Down 39.9 97.7 Up 07:26:46 - 07:56:46 -673
Patrick 07:41:42 -32.3 Dark Down 40.8 97.9 Up 07:26:42 - 07:56:42 -732
Searchlight/Boulder City 07:41:46 -32.3 Dark Down 40.0 97.3 Up 07:26:46 - 07:56:46 -735
Kingman/Dolan Springs 07:41:42 -32.5 Dark Down 40.7 97.6 Up 07:26:42 - 07:56:42 -759
DCO 07:41:39 -32.6 Dark Down 41.4 98.1 Up 07:26:39 - 07:56:39 -760
Laughlin/Bullhead City 07:41:45 -32.6 Dark Down 40.3 97.3 Up 07:26:45 - 07:56:45 -766
CPSLO 07:42:07 -32.3 Dark Down 35.4 93.5 Up 07:27:07 - 07:57:07 -785
Mohave Valley 07:41:44 -32.8 Dark Down 40.3 97.0 Up 07:26:44 - 07:56:44 -796
Lake Havasu City 07:41:43 -33.2 Dark Down 40.6 96.9 Up 07:26:43 - 07:56:43 -838
Parker 07:41:43 -33.6 Dark Down 40.7 96.6 Up 07:26:43 - 07:56:43 -876
Wildwood 07:42:00 -33.6 Dark Down 37.2 93.9 Up 07:27:00 - 07:57:00 -911
Blythe 07:41:44 -34.1 Dark Down 40.5 95.9 Up 07:26:44 - 07:56:44 -937
Idyllwild 07:41:52 -34.0 Dark Down 38.7 94.7 Up 07:26:52 - 07:56:52 -940
Calipatria 07:41:48 -34.6 Dark Down 39.7 95.0 Up 07:26:48 - 07:56:48 -999
Yuma 07:41:44 -35.0 Dark Down 40.5 95.1 Up 07:26:44 - 07:56:44 -1039

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 523700, (2024/06/02 07:36UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 28.63  68
Tarazed        19:46:15.6 +10:36:48  2.7 10.02  78
PPM 138344     20:26:23.2 +17:18:56  6.2  2.06  68
PPM 138084     20:18:35.1 +17:21:43  8.1  0.33  70
PPM 138051     20:17:32.9 +17:05:43 10.6  0.07  70
523700         20:17:49.2 +17:04:52 13.2        70
Positions are for J2000

Event circumstances last updated at 2019/06/08 07:10:24 UT

Marc W. Buie, Southwest Research Institute

RECON