RECON: TNO occultation with 470593

Event between (470593) 08LP17 and star GA0660:07953804 with event index number of 190376

Geocentric closest approach at 2019/05/18 06:47:42 UTC

J2000 position of star is 16:47:18.2 -22:26:50
Equinox of date position of star is 16:48:27.1 -22:28:49
Stellar brightness G=15.2, use SENSEUP=128
Star is 24 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=21.0

[RECON map]
TNO is 30.3 AU from the Sun and 29.3 AU from the Earth.
The TNO is moving 21.5 km/sec on the sky relative to the star, or, 3.6 arcsec/hr.
The 1-sigma error in the time of the event is 158 seconds.
The 1-sigma cross-track error in the shadow position is 1724 km.
The sky-plane scale is 21272.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.2
Diameter=346.7 km assuming a 5% albedo -- 16.2 sec chord
Diameter=141.6 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 470593, (2019/05/18 06:48UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:35.9 -26:28:24  0.9  5.70  22
23Tau Sco      16:37:05.5 -28:15:17  2.8  6.32  24
PPM 266088     16:54:34.0 -20:26:47  5.7  2.48  25
PPM 265937     16:47:39.0 -22:39:44  8.4  0.26  24
PPM 265954     16:48:17.5 -22:32:19  9.9  0.07  24
470593         16:48:28.0 -22:28:50 15.2        24
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 12.0 km RECON observability=0.4 and success probability=0.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 06:49:37 -19.2 Dark Up 11.9 148.9 Really Low 06:35:56 - 07:03:19 8021
Summerland 06:49:38 -19.1 Dark Up 11.8 148.6 Really Low 06:35:57 - 07:03:20 8013
Penticton 06:49:39 -19.5 Dark Up 12.2 148.7 Really Low 06:35:57 - 07:03:20 8003
Okanagan Falls 06:49:39 -19.7 Dark Up 12.3 148.7 Really Low 06:35:57 - 07:03:20 7995
Oliver 06:49:39 -19.8 Dark Up 12.5 148.7 Really Low 06:35:57 - 07:03:20 7988
Anarchist Mountain Observatory 06:49:39 -20.0 Dark Up 12.7 148.8 Really Low 06:35:57 - 07:03:20 7984
Oroville 06:49:39 -20.1 Dark Up 12.7 148.8 Really Low 06:35:58 - 07:03:21 7980
Tonasket 06:49:40 -20.3 Dark Up 12.9 148.7 Really Low 06:35:58 - 07:03:21 7970
Okanogan 06:49:41 -20.6 Dark Up 13.2 148.6 Really Low 06:36:00 - 07:03:23 7953
Brewster 06:49:42 -20.8 Dark Up 13.3 148.4 Really Low 06:36:00 - 07:03:23 7937
Manson/Chelan 06:49:44 -20.9 Dark Up 13.4 148.0 Really Low 06:36:02 - 07:03:25 7921
Entiat 06:49:44 -21.1 Dark Up 13.5 147.9 Really Low 06:36:03 - 07:03:26 7910
Wenatchee 06:49:45 -21.4 Dark Up 13.7 147.8 Really Low 06:36:03 - 07:03:26 7896
Ellensburg 06:49:46 -21.7 Dark Up 14.0 147.6 Really Low 06:36:05 - 07:03:28 7873
Pasco 06:49:44 -22.7 Dark Up 15.1 148.7 Really Low 06:36:02 - 07:03:25 7865
PNWRO 06:49:44 -23.0 Dark Up 15.4 148.9 Really Low 06:36:02 - 07:03:25 7858
Yakima 06:49:47 -22.1 Dark Up 14.3 147.5 Really Low 06:36:06 - 07:03:29 7854
Toppenish/White Swan 06:49:47 -22.3 Dark Up 14.6 147.6 Really Low 06:36:06 - 07:03:29 7847
George/Umatilla 06:49:45 -23.0 Dark Up 15.3 148.5 Really Low 06:36:03 - 07:03:26 7845
Goldendale 06:49:50 -22.8 Dark Up 14.9 147.2 Really Low 06:36:08 - 07:03:31 7812
The Dalles 06:49:51 -22.9 Dark Up 14.9 146.8 Really Low 06:36:09 - 07:03:32 7794
Niwot 06:49:06 -30.4 Dark Up 25.0 160.6 Low 06:35:25 - 07:02:48 7788
SwRI 06:49:08 -30.5 Dark Up 25.0 160.5 Low 06:35:26 - 07:02:49 7781
Maupin 06:49:52 -23.3 Dark Up 15.3 146.9 Really Low 06:36:10 - 07:03:33 7776
Madras/Culver 06:49:53 -23.9 Dark Up 15.8 146.8 Really Low 06:36:12 - 07:03:35 7748
Redmond 06:49:54 -24.2 Dark Up 16.1 146.7 Really Low 06:36:12 - 07:03:35 7729
Sisters 06:49:55 -24.1 Dark Up 15.9 146.3 Really Low 06:36:14 - 07:03:37 7722
Bend 06:49:55 -24.4 Dark Up 16.2 146.5 Really Low 06:36:13 - 07:03:36 7715
Oregon Observatory 06:49:55 -24.5 Dark Up 16.3 146.4 Really Low 06:36:14 - 07:03:37 7703
La Pine/Gilchrist 06:49:56 -24.7 Dark Up 16.4 146.3 Really Low 06:36:15 - 07:03:38 7691
North Lake 06:49:55 -25.2 Dark Up 17.0 146.7 Really Low 06:36:14 - 07:03:37 7681
Paisley 06:49:55 -25.8 Dark Up 17.6 147.0 Really Low 06:36:14 - 07:03:37 7659
Lakeview 06:49:55 -26.4 Dark Up 18.1 147.0 Really Low 06:36:13 - 07:03:36 7636
Chiloquin 06:49:58 -25.6 Dark Up 17.2 145.8 Really Low 06:36:17 - 07:03:40 7625
Klamath Falls 06:50:00 -26.0 Dark Up 17.5 145.8 Really Low 06:36:18 - 07:03:41 7608
Cedarville 06:49:56 -27.0 Dark Up 18.8 147.1 Really Low 06:36:14 - 07:03:37 7603
Tulelake 06:49:59 -26.3 Dark Up 17.9 146.0 Really Low 06:36:18 - 07:03:41 7600
Fall River/Burney 06:50:01 -27.2 Dark Up 18.7 145.9 Really Low 06:36:19 - 07:03:42 7551
Susanville 06:50:00 -28.0 Dark Up 19.5 146.5 Really Low 06:36:18 - 07:03:41 7531
Gimple 06:50:00 -28.2 Dark Up 19.6 146.2 Really Low 06:36:18 - 07:03:41 7511
Greenville 06:50:01 -28.2 Dark Up 19.6 146.1 Really Low 06:36:19 - 07:03:42 7509
Portola 06:49:59 -28.6 Dark Up 20.1 146.5 Low 06:36:18 - 07:03:41 7500
Reno 06:49:58 -29.0 Dark Up 20.6 147.0 Low 06:36:17 - 07:03:40 7498
Quincy 06:50:01 -28.4 Dark Up 19.8 146.1 Really Low 06:36:19 - 07:03:42 7497
Yerington 06:49:57 -29.7 Dark Up 21.3 147.5 Low 06:36:15 - 07:03:38 7480
Carson City 06:49:58 -29.3 Dark Up 20.9 147.0 Low 06:36:17 - 07:03:40 7478
Tonopah 06:49:52 -31.0 Dark Up 22.9 149.0 Low 06:36:10 - 07:03:33 7465
Gardnerville 06:49:59 -29.6 Dark Up 21.1 146.9 Low 06:36:18 - 07:03:41 7465
Hawthorne 06:49:56 -30.2 Dark Up 21.9 147.8 Low 06:36:15 - 07:03:38 7464
Lee Vining 06:49:59 -30.7 Dark Up 22.2 147.3 Low 06:36:17 - 07:03:40 7419
Indian Springs 06:49:49 -32.7 Dark Up 24.8 150.0 Low 06:36:08 - 07:03:31 7406
Beatty 06:49:52 -32.2 Dark Up 24.1 149.1 Low 06:36:10 - 07:03:33 7404
Bishop 06:49:57 -31.4 Dark Up 23.0 147.8 Low 06:36:16 - 07:03:39 7398
Henderson 06:49:47 -33.4 Dark Up 25.5 150.6 Low 06:36:06 - 07:03:29 7386
Patrick 06:49:44 -34.2 Dark Up 26.5 151.4 Low 06:36:02 - 07:03:25 7369
DCO 06:49:42 -34.6 Dark Up 27.1 152.0 Low 06:36:00 - 07:03:23 7363
Lone Pine 06:49:57 -32.2 Dark Up 23.8 147.9 Low 06:36:15 - 07:03:38 7358
Searchlight/Boulder City 06:49:47 -33.9 Dark Up 26.1 150.5 Low 06:36:06 - 07:03:29 7352
Kingman/Dolan Springs 06:49:45 -34.4 Dark Up 26.6 151.2 Low 06:36:03 - 07:03:26 7351
Laughlin/Bullhead City 06:49:47 -34.3 Dark Up 26.5 150.7 Low 06:36:05 - 07:03:28 7340
Mohave Valley 06:49:47 -34.6 Dark Up 26.7 150.7 Low 06:36:06 - 07:03:29 7322
Lake Havasu City 06:49:47 -35.0 Dark Up 27.1 150.8 Low 06:36:05 - 07:03:28 7302
Parker 06:49:47 -35.4 Dark Up 27.5 150.7 Low 06:36:05 - 07:03:28 7279
Blythe 06:49:48 -35.8 Dark Up 27.8 150.3 Low 06:36:07 - 07:03:30 7239
CPSLO 06:50:08 -32.8 Dark Up 23.7 145.3 Low 06:36:26 - 07:03:49 7219
Idyllwild 06:49:56 -35.3 Dark Up 26.8 148.4 Low 06:36:15 - 07:03:38 7203
Calipatria 06:49:53 -36.1 Dark Up 27.8 149.3 Low 06:36:11 - 07:03:34 7187
Wildwood 06:50:02 -34.5 Dark Up 25.7 146.8 Low 06:36:21 - 07:03:44 7186
Yuma 06:49:50 -36.7 Dark Up 28.6 150.0 Low 06:36:08 - 07:03:31 7177

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, (2019/05/18 06:48UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  5.70  22
23Tau Sco      16:35:53.0 -28:12:58  2.8  6.32  24
PPM 266088     16:53:25.2 -20:24:57  5.7  2.48  25
PPM 265937     16:46:29.2 -22:37:43  8.4  0.26  24
PPM 265954     16:47:07.7 -22:30:19  9.9  0.07  24
470593         16:47:18.2 -22:26:50 15.2        24
Positions are for J2000

Event circumstances last updated at 2019/02/12 07:53:49 UT

Marc W. Buie, Southwest Research Institute

RECON