RECON: TNO occultation with 470593

Event between (470593) 08LP17 and star GA0660:08086664 with event index number of 186910

Geocentric closest approach at 2019/04/16 10:10:48 UTC

J2000 position of star is 16:50:03.8 -22:27:52
Equinox of date position of star is 16:51:10.3 -22:29:42
Stellar brightness G=15.1, use SENSEUP=128
Star is 89 degrees from the moon. Moon is 87% illuminated.
TNO apparent brightness V=21.1

[RECON map]
TNO is 30.3 AU from the Sun and 29.6 AU from the Earth.
The TNO is moving 12.9 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 181 seconds.
The 1-sigma cross-track error in the shadow position is 1379 km.
The sky-plane scale is 21473.8 km/arcsec.

The TNO has an absolute magnitude Hv=6.2
Diameter=346.7 km assuming a 5% albedo -- 26.9 sec chord
Diameter=141.6 km assuming a 30% albedo -- 11.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 470593, (2019/04/16 10:11UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:35.6 -26:28:23  0.9  6.15  86
23Tau Sco      16:37:05.2 -28:15:16  2.8  6.58  87
PPM 266088     16:54:33.7 -20:26:46  5.7  2.19  90
PPM 266012     16:50:44.2 -21:53:05  7.4  0.62  89
PPM 266026     16:51:32.1 -22:40:10  9.7  0.19  89
470593         16:51:13.3 -22:29:47 15.1        90
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 11.1 km RECON observability=0.7 and success probability=11.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 10:01:42 -24.5 Dark Up 16.4 163.3 Really Low 09:46:42 - 10:16:42 906
Oroville 10:01:43 -25.0 Dark Up 17.0 163.3 Really Low 09:46:43 - 10:16:43 885
Tonasket 10:01:43 -25.2 Dark Up 17.2 163.3 Really Low 09:46:43 - 10:16:43 876
Okanogan 10:01:45 -25.5 Dark Up 17.5 163.2 Really Low 09:46:45 - 10:16:45 863
Brewster 10:01:46 -25.8 Dark Up 17.7 162.9 Really Low 09:46:46 - 10:16:46 851
Manson/Chelan 10:01:49 -26.1 Dark Up 17.8 162.6 Really Low 09:46:49 - 10:16:49 840
Entiat 10:01:49 -26.3 Dark Up 18.0 162.5 Really Low 09:46:49 - 10:16:49 831
Wenatchee 10:01:50 -26.6 Dark Up 18.2 162.4 Really Low 09:46:50 - 10:16:50 820
Ellensburg 10:01:53 -27.0 Dark Up 18.6 162.1 Really Low 09:46:53 - 10:16:53 802
Yakima 10:01:53 -27.3 Dark Up 19.0 162.1 Really Low 09:46:53 - 10:16:53 785
Pasco 10:01:46 -27.1 Dark Up 19.6 163.4 Really Low 09:46:46 - 10:16:46 783
Toppenish/White Swan 10:01:53 -27.4 Dark Up 19.2 162.2 Really Low 09:46:53 - 10:16:53 778
PNWRO 10:01:45 -27.2 Dark Up 19.9 163.6 Really Low 09:46:45 - 10:16:45 774
George/Umatilla 10:01:48 -27.4 Dark Up 19.9 163.2 Really Low 09:46:48 - 10:16:48 767
Goldendale 10:01:56 -28.1 Dark Up 19.7 161.8 Really Low 09:46:56 - 10:16:56 751
The Dalles 10:01:59 -28.4 Dark Up 19.8 161.4 Really Low 09:46:59 - 10:16:59 739
Maupin 10:01:59 -28.7 Dark Up 20.2 161.5 Low 09:46:59 - 10:16:59 722
Madras/Culver 10:02:00 -29.2 Dark Up 20.7 161.4 Low 09:47:00 - 10:17:00 697
Redmond 10:02:01 -29.5 Dark Up 21.1 161.3 Low 09:47:01 - 10:17:01 681
Sisters 10:02:03 -29.6 Dark Up 20.9 160.9 Low 09:47:03 - 10:17:03 678
Bend 10:02:03 -29.7 Dark Up 21.2 161.1 Low 09:47:03 - 10:17:03 670
Oregon Observatory 10:02:03 -29.9 Dark Up 21.4 161.0 Low 09:47:03 - 10:17:03 661
La Pine/Gilchrist 10:02:04 -30.1 Dark Up 21.5 160.9 Low 09:47:04 - 10:17:04 651
North Lake 10:02:02 -30.2 Dark Up 22.1 161.4 Low 09:47:02 - 10:17:02 636
Paisley 10:02:01 -30.5 Dark Up 22.7 161.7 Low 09:47:01 - 10:17:01 613
Chiloquin 10:02:09 -31.2 Dark Up 22.5 160.4 Low 09:47:09 - 10:17:09 595
Lakeview 10:02:00 -30.9 Dark Up 23.2 161.8 Low 09:47:00 - 10:17:00 590
Klamath Falls 10:02:09 -31.4 Dark Up 22.8 160.4 Low 09:47:09 - 10:17:09 579
Tulelake 10:02:07 -31.5 Dark Up 23.2 160.7 Low 09:47:07 - 10:17:07 569
Niwot 10:00:29 -24.8 Dark Up 27.4 176.6 Low 09:45:29 - 10:15:29 560
Cedarville 10:02:01 -31.3 Dark Up 23.9 161.9 Low 09:47:01 - 10:17:01 560
Fall River/Burney 10:02:09 -32.2 Dark Up 24.1 160.6 Low 09:47:09 - 10:17:09 524
Susanville 10:02:06 -32.4 Dark Up 24.8 161.3 Low 09:47:06 - 10:17:06 499
Gimple 10:02:07 -32.7 Dark Up 25.0 161.0 Low 09:47:07 - 10:17:07 482
Greenville 10:02:08 -32.8 Dark Up 25.0 160.9 Low 09:47:08 - 10:17:08 482
Quincy 10:02:08 -32.9 Dark Up 25.2 160.9 Low 09:47:08 - 10:17:08 471
Portola 10:02:06 -32.8 Dark Up 25.5 161.4 Low 09:47:06 - 10:17:06 469
Reno 10:02:02 -32.8 Dark Up 25.9 162.0 Low 09:47:02 - 10:17:02 461
Carson City 10:02:03 -33.0 Dark Up 26.2 161.9 Low 09:47:03 - 10:17:03 442
Yerington 10:01:59 -32.9 Dark Up 26.5 162.5 Low 09:46:59 - 10:16:59 437
Gardnerville 10:02:03 -33.2 Dark Up 26.4 161.9 Low 09:47:03 - 10:17:03 429
Hawthorne 10:01:56 -33.0 Dark Up 27.1 163.0 Low 09:46:56 - 10:16:56 416
Tonopah 10:01:48 -32.7 Dark Up 27.9 164.3 Low 09:46:48 - 10:16:48 401
Lee Vining 10:02:00 -33.7 Dark Up 27.5 162.4 Low 09:47:00 - 10:17:00 381
Bishop 10:01:56 -33.8 Dark Up 28.3 163.0 Low 09:46:56 - 10:16:56 353
Beatty 10:01:47 -33.3 Dark Up 29.1 164.6 Low 09:46:47 - 10:16:47 340
Indian Springs 10:01:40 -33.0 Dark Up 29.6 165.6 Low 09:46:40 - 10:16:40 329
Lone Pine 10:01:56 -34.2 Dark Up 29.1 163.2 Low 09:46:56 - 10:16:56 313
Henderson 10:01:36 -33.1 Dark Up 30.3 166.3 Up 09:46:36 - 10:16:36 302
Patrick 10:01:29 -32.9 Dark Up 31.1 167.3 Up 09:46:29 - 10:16:29 272
Searchlight/Boulder City 10:01:36 -33.4 Dark Up 30.8 166.2 Up 09:46:36 - 10:16:36 269
DCO 10:01:25 -32.7 Dark Up 31.5 168.0 Up 09:46:25 - 10:16:25 258
Kingman/Dolan Springs 10:01:31 -33.2 Dark Up 31.2 167.1 Up 09:46:31 - 10:16:31 258
Laughlin/Bullhead City 10:01:34 -33.5 Dark Up 31.2 166.6 Up 09:46:34 - 10:16:34 254
Mohave Valley 10:01:34 -33.7 Dark Up 31.4 166.5 Up 09:46:34 - 10:16:34 237
Lake Havasu City 10:01:33 -33.8 Dark Up 31.9 166.7 Up 09:46:33 - 10:16:33 215
CPSLO 10:02:14 -36.5 Dark Up 29.7 160.4 Low 09:47:14 - 10:17:14 213
Parker 10:01:34 -34.0 Dark Up 32.2 166.7 Up 09:46:34 - 10:16:34 193
Blythe 10:01:36 -34.6 Dark Up 32.7 166.3 Up 09:46:36 - 10:16:36 159
Wildwood 10:02:03 -36.4 Dark Up 31.3 162.3 Up 09:47:03 - 10:17:03 158
Idyllwild 10:01:50 -35.7 Dark Up 32.1 164.1 Up 09:46:50 - 10:16:50 151
Calipatria 10:01:43 -35.5 Dark Up 33.0 165.3 Up 09:46:43 - 10:16:43 122
Yuma 10:01:38 -35.3 Dark Up 33.6 166.1 Up 09:46:38 - 10:16:38 101

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 470593, (2019/04/16 10:11UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  6.15  86
23Tau Sco      16:35:53.0 -28:12:58  2.8  6.58  87
PPM 266088     16:53:25.2 -20:24:57  5.7  2.19  90
PPM 266012     16:49:35.0 -21:51:09  7.4  0.62  89
PPM 266026     16:50:22.6 -22:38:15  9.7  0.19  89
470593         16:50:03.8 -22:27:52 15.1        89
Positions are for J2000

Event circumstances last updated at 2018/06/11 22:58:58 UT

Marc W. Buie, Southwest Research Institute

RECON