RECON: TNO occultation with 524460

Event between (524460) 02GF32 and star GA0680:06623911 with event index number of 1592332

Geocentric closest approach at 2020/06/12 08:32:31 UTC

J2000 position of star is 16:00:38.5 -21:31:57
Equinox of date position of star is 16:01:47.4 -21:35:11
Stellar brightness G=16.9, use SENSEUP=128
Star is 99 degrees from the moon. Moon is 59% illuminated.
TNO apparent brightness V=23.0

[RECON map]
TNO is 44.5 AU from the Sun and 43.5 AU from the Earth.
The TNO is moving 23.6 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 162 seconds.
The 1-sigma cross-track error in the shadow position is 1809 km.
The sky-plane scale is 31566.3 km/arcsec.

The TNO has an absolute magnitude Hv=6.5
Diameter=302.0 km assuming a 5% albedo -- 12.8 sec chord
Diameter=123.3 km assuming a 30% albedo -- 5.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 524460, (2020/06/12 08:33UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:39.9 -26:28:32  0.9  8.19  92
7Del Sco       16:01:32.8 -22:40:42  2.3  1.09  99
PPM 264922     15:58:52.4 -21:02:27  6.1  0.88 100
PPM 264995     16:02:17.9 -21:12:43  7.3  0.39  99
PPM 264981     16:01:33.5 -21:32:52  9.2  0.08  99
524460         16:01:50.7 -21:35:20 16.9        99
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 13.9 km RECON observability=0.6 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 08:31:55 -16.5 AT Up 13.9 208.2 Really Low 08:17:55 - 08:45:55 14185
Summerland 08:31:56 -16.8 AT Up 14.3 208.0 Really Low 08:17:56 - 08:45:56 14176
Penticton 08:31:55 -16.9 AT Up 14.3 208.1 Really Low 08:17:55 - 08:45:55 14174
Okanagan Falls 08:31:55 -17.1 AT Up 14.5 208.1 Really Low 08:17:55 - 08:45:55 14168
Oliver 08:31:55 -17.2 AT Up 14.6 208.1 Really Low 08:17:55 - 08:45:55 14163
Anarchist Mountain Observatory 08:31:54 -17.4 AT Up 14.7 208.3 Really Low 08:17:54 - 08:45:54 14157
Oroville 08:31:54 -17.5 AT Up 14.8 208.3 Really Low 08:17:54 - 08:45:54 14155
Tonasket 08:31:53 -17.7 AT Up 15.0 208.3 Really Low 08:17:53 - 08:45:53 14147
Okanogan 08:31:53 -18.1 Dark Up 15.3 208.2 Really Low 08:17:53 - 08:45:53 14136
Brewster 08:31:52 -18.3 Dark Up 15.6 208.1 Really Low 08:17:52 - 08:45:52 14127
Manson/Chelan 08:31:54 -18.6 Dark Up 15.9 207.8 Really Low 08:17:54 - 08:45:54 14120
Wenatchee 08:31:54 -19.1 Dark Up 16.4 207.7 Really Low 08:17:54 - 08:45:54 14104
Ellensburg 08:31:53 -19.5 Dark Up 16.8 207.5 Really Low 08:17:53 - 08:45:53 14089
Yakima 08:31:52 -19.9 Dark Up 17.2 207.6 Really Low 08:17:52 - 08:45:52 14074
Toppenish/White Swan 08:31:52 -20.1 Dark Up 17.3 207.8 Really Low 08:17:52 - 08:45:52 14066
Pasco 08:31:47 -20.1 Dark Up 17.0 208.9 Really Low 08:17:47 - 08:45:47 14061
PNWRO 08:31:46 -20.3 Dark Up 17.2 209.2 Really Low 08:17:46 - 08:45:46 14052
George/Umatilla 08:31:47 -20.5 Dark Up 17.4 208.8 Really Low 08:17:47 - 08:45:47 14049
Goldendale 08:31:51 -20.7 Dark Up 18.0 207.4 Really Low 08:17:51 - 08:45:51 14045
The Dalles 08:31:52 -20.9 Dark Up 18.3 207.1 Really Low 08:17:52 - 08:45:52 14037
Maupin 08:31:52 -21.3 Dark Up 18.6 207.3 Really Low 08:17:52 - 08:45:52 14021
Madras/Culver 08:31:50 -21.9 Dark Up 19.1 207.3 Really Low 08:17:50 - 08:45:50 13999
Sisters 08:31:52 -22.3 Dark Up 19.6 207.0 Really Low 08:17:52 - 08:45:52 13985
Redmond 08:31:49 -22.3 Dark Up 19.5 207.4 Really Low 08:17:49 - 08:45:49 13984
Bend 08:31:50 -22.5 Dark Up 19.7 207.3 Really Low 08:17:50 - 08:45:50 13975
Oregon Observatory 08:31:49 -22.7 Dark Up 19.9 207.2 Really Low 08:17:49 - 08:45:49 13968
La Pine/Gilchrist 08:31:49 -22.9 Dark Up 20.1 207.1 Low 08:17:49 - 08:45:49 13960
North Lake 08:31:48 -23.3 Dark Up 20.3 207.8 Low 08:17:48 - 08:45:48 13942
Paisley 08:31:44 -23.8 Dark Up 20.7 208.2 Low 08:17:44 - 08:45:44 13918
Chiloquin 08:31:49 -24.0 Dark Up 21.2 207.0 Low 08:17:49 - 08:45:49 13912
Klamath Falls 08:31:48 -24.3 Dark Up 21.5 207.1 Low 08:17:48 - 08:45:48 13897
Lakeview 08:31:43 -24.3 Dark Up 21.0 208.4 Low 08:17:43 - 08:45:43 13896
Tulelake 08:31:46 -24.6 Dark Up 21.6 207.5 Low 08:17:46 - 08:45:46 13885
Cedarville 08:31:42 -24.9 Dark Up 21.6 208.7 Low 08:17:42 - 08:45:42 13866
Fall River/Burney 08:31:44 -25.5 Dark Up 22.4 207.7 Low 08:17:44 - 08:45:44 13843
Susanville 08:31:41 -26.0 Dark Up 22.7 208.5 Low 08:17:41 - 08:45:41 13814
Greenville 08:31:41 -26.3 Dark Up 23.1 208.3 Low 08:17:41 - 08:45:41 13801
Gimple 08:31:40 -26.3 Dark Up 23.0 208.3 Low 08:17:40 - 08:45:40 13801
Quincy 08:31:41 -26.5 Dark Up 23.2 208.3 Low 08:17:41 - 08:45:41 13791
Portola 08:31:39 -26.6 Dark Up 23.2 208.8 Low 08:17:39 - 08:45:39 13785
Reno 08:31:35 -26.8 Dark Up 23.2 209.4 Low 08:17:35 - 08:45:35 13772
Carson City 08:31:36 -27.2 Dark Up 23.5 209.5 Low 08:17:36 - 08:45:36 13754
Yerington 08:31:33 -27.3 Dark Up 23.4 210.1 Low 08:17:33 - 08:45:33 13744
Gardnerville 08:31:35 -27.4 Dark Up 23.7 209.6 Low 08:17:35 - 08:45:35 13742
SwRI 08:30:55 -23.4 Dark Up 16.3 221.8 Really Low 08:16:55 - 08:44:55 13727
Hawthorne 08:31:31 -27.7 Dark Up 23.6 210.7 Low 08:17:31 - 08:45:31 13720
Tonopah 08:31:25 -27.9 Dark Up 23.4 212.1 Low 08:17:25 - 08:45:25 13694
Lee Vining 08:31:31 -28.3 Dark Up 24.3 210.4 Low 08:17:31 - 08:45:31 13692
Bishop 08:31:28 -28.8 Dark Up 24.5 211.2 Low 08:17:28 - 08:45:28 13660
Beatty 08:31:20 -29.0 Dark Up 24.2 212.8 Low 08:17:20 - 08:45:20 13632
Lone Pine 08:31:25 -29.5 Dark Up 25.0 211.7 Low 08:17:25 - 08:45:25 13618
Indian Springs 08:31:18 -29.1 Dark Up 24.0 213.8 Low 08:17:18 - 08:45:18 13612
Henderson 08:31:15 -29.5 Dark Up 24.1 214.5 Low 08:17:15 - 08:45:15 13581
Searchlight/Boulder City 08:31:14 -30.1 Dark Up 24.6 214.7 Low 08:17:14 - 08:45:14 13548
CPSLO 08:31:32 -31.1 Dark Up 27.2 209.6 Low 08:17:32 - 08:45:32 13548
Patrick 08:31:11 -29.9 Dark Up 24.1 215.7 Low 08:17:11 - 08:45:11 13542
Laughlin/Bullhead City 08:31:11 -30.3 Dark Up 24.7 215.1 Low 08:17:11 - 08:45:11 13530
Kingman/Dolan Springs 08:31:10 -30.2 Dark Up 24.4 215.6 Low 08:17:10 - 08:45:10 13530
Mohave Valley 08:31:10 -30.6 Dark Up 24.9 215.2 Low 08:17:10 - 08:45:10 13515
Lake Havasu City 08:31:09 -30.9 Dark Up 25.1 215.5 Low 08:17:09 - 08:45:09 13491
Wildwood 08:31:23 -32.0 Dark Up 27.4 211.8 Low 08:17:23 - 08:45:23 13478
Parker 08:31:09 -31.2 Dark Up 25.4 215.6 Low 08:17:09 - 08:45:09 13470
Idyllwild 08:31:16 -32.1 Dark Up 26.9 213.6 Low 08:17:16 - 08:45:16 13454
Blythe 08:31:09 -31.8 Dark Up 26.0 215.5 Low 08:17:09 - 08:45:09 13441
Calipatria 08:31:12 -32.5 Dark Up 26.8 214.8 Low 08:17:12 - 08:45:12 13415
Yuma 08:31:07 -32.7 Dark Up 26.7 215.8 Low 08:17:07 - 08:45:07 13385

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 524460, (2020/06/12 08:33UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  8.19  92
7Del Sco       16:00:20.0 -22:37:18  2.3  1.09  99
PPM 264922     15:57:40.5 -20:58:59  6.1  0.88 100
PPM 264995     16:01:05.8 -21:09:20  7.3  0.39  99
PPM 264981     16:00:21.2 -21:29:29  9.2  0.08  99
524460         16:00:38.5 -21:31:57 16.9        99
Positions are for J2000

Event circumstances last updated at 2019/07/02 02:41:35 UT

Marc W. Buie, Southwest Research Institute

RECON