RECON: TNO occultation with 471136

Event between (471136) 10EO65 and star UC4-286-104894 with event index number of 201610

Geocentric closest approach at 2019/07/15 05:50:10 UTC

J2000 position of star is 16:58:31.7 -32:48:42
Equinox of date position of star is 16:59:40.4 -32:50:15
Stellar brightness R=11.6, use SENSEUP=8
Star is 20 degrees from the moon. Moon is 97% illuminated.
TNO apparent brightness V=21.3

[RECON map]
TNO is 14.7 AU from the Sun and 13.9 AU from the Earth.
The TNO is moving 15.2 km/sec on the sky relative to the star, or, 5.5 arcsec/hr.
The 1-sigma error in the time of the event is 119 seconds.
The 1-sigma cross-track error in the shadow position is 908 km.
The sky-plane scale is 10059.4 km/arcsec.

The TNO has an absolute magnitude Hv=9.5
Diameter=75.9 km assuming a 5% albedo -- 5.0 sec chord
Diameter=31.0 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 471136, (2019/07/15 05:50UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.5 -26:28:25  0.9  8.98  24
26Eps Sco      16:51:26.0 -34:19:37  2.3  2.29  22
27 Sco         16:58:27.8 -33:17:20  5.2  0.53  21
PPM 295699     16:58:13.8 -32:22:03  7.9  0.58  20
PPM 295729     16:59:45.8 -32:59:03  9.3  0.14  20
471136         16:59:48.0 -32:50:25 11.6        20
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 8.7 km RECON observability=0.3 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)
Niwot 05:50:43 -25.8 Dark Up 14.6 197.9 Really Low 05:40:17 - 06:01:08 4998
Oroville 05:52:06 -13.6 AT Up 8.0 185.7 Really Low 05:41:40 - 06:02:31 4901
Tonasket 05:52:05 -13.8 AT Up 8.3 185.7 Really Low 05:41:39 - 06:02:30 4899
Okanogan 05:52:06 -14.1 AT Up 8.6 185.6 Really Low 05:41:40 - 06:02:31 4891
Brewster 05:52:06 -14.2 AT Up 8.9 185.4 Really Low 05:41:40 - 06:02:31 4883
Manson/Chelan 05:52:08 -14.3 AT Up 9.1 185.1 Really Low 05:41:42 - 06:02:33 4872
PNWRO 05:52:00 -16.3 AT Up 10.9 186.2 Really Low 05:41:34 - 06:02:25 4871
Pasco 05:52:01 -16.0 AT Up 10.7 186.0 Really Low 05:41:35 - 06:02:26 4870
Entiat 05:52:08 -14.5 AT Up 9.3 185.1 Really Low 05:41:42 - 06:02:33 4868
Wenatchee 05:52:08 -14.6 AT Up 9.6 185.0 Really Low 05:41:42 - 06:02:33 4862
George/Umatilla 05:52:02 -16.2 AT Up 11.0 185.8 Really Low 05:41:36 - 06:02:27 4860
Ellensburg 05:52:08 -14.9 AT Up 10.0 184.8 Really Low 05:41:43 - 06:02:34 4851
Toppenish/White Swan 05:52:08 -15.5 AT Up 10.6 185.0 Really Low 05:41:42 - 06:02:33 4844
Yakima 05:52:08 -15.2 AT Up 10.4 184.8 Really Low 05:41:43 - 06:02:34 4843
Goldendale 05:52:09 -15.8 AT Up 11.2 184.6 Really Low 05:41:43 - 06:02:34 4824
The Dalles 05:52:10 -15.8 AT Up 11.5 184.3 Really Low 05:41:45 - 06:02:36 4811
Maupin 05:52:09 -16.2 AT Up 11.9 184.4 Really Low 05:41:44 - 06:02:35 4806
Madras/Culver 05:52:09 -16.7 AT Up 12.4 184.4 Really Low 05:41:43 - 06:02:34 4794
Redmond 05:52:08 -16.9 AT Up 12.8 184.3 Really Low 05:41:43 - 06:02:34 4786
Bend 05:52:09 -17.1 AT Up 13.0 184.2 Really Low 05:41:44 - 06:02:35 4778
Sisters 05:52:11 -16.8 AT Up 12.8 184.0 Really Low 05:41:45 - 06:02:36 4777
Oregon Observatory 05:52:10 -17.2 AT Up 13.2 184.1 Really Low 05:41:45 - 06:02:36 4771
North Lake 05:52:07 -17.9 AT Up 13.8 184.6 Really Low 05:41:41 - 06:02:32 4771
Paisley 05:52:04 -18.5 Dark Up 14.3 184.9 Really Low 05:41:39 - 06:02:30 4767
La Pine/Gilchrist 05:52:11 -17.3 AT Up 13.4 184.1 Really Low 05:41:45 - 06:02:36 4765
Lakeview 05:52:03 -19.0 Dark Up 14.8 185.1 Really Low 05:41:37 - 06:02:28 4759
Cedarville 05:52:01 -19.6 Dark Up 15.5 185.2 Really Low 05:41:35 - 06:02:26 4747
Chiloquin 05:52:11 -18.1 Dark Up 14.5 183.8 Really Low 05:41:46 - 06:02:37 4731
Tulelake 05:52:08 -18.7 Dark Up 15.1 184.1 Really Low 05:41:43 - 06:02:34 4725
Klamath Falls 05:52:10 -18.4 Dark Up 14.9 183.9 Really Low 05:41:45 - 06:02:36 4724
Tonopah 05:51:42 -23.7 Dark Up 18.6 187.9 Really Low 05:41:16 - 06:02:07 4722
DCO 05:51:20 -27.9 Dark Up 21.0 191.6 Low 05:40:55 - 06:01:46 4716
Patrick 05:51:20 -27.3 Dark Up 20.8 190.9 Low 05:40:55 - 06:01:46 4710
Indian Springs 05:51:31 -25.6 Dark Up 19.9 189.3 Really Low 05:41:06 - 06:01:57 4709
Henderson 05:51:25 -26.4 Dark Up 20.4 189.9 Low 05:41:00 - 06:01:51 4707
Susanville 05:52:03 -20.4 Dark Up 16.6 184.8 Really Low 05:41:37 - 06:02:28 4705
Fall River/Burney 05:52:06 -19.5 Dark Up 16.0 184.2 Really Low 05:41:41 - 06:02:32 4703
Yerington 05:51:53 -22.2 Dark Up 17.9 186.2 Really Low 05:41:27 - 06:02:18 4702
Reno 05:51:56 -21.4 Dark Up 17.4 185.6 Really Low 05:41:31 - 06:02:22 4702
Hawthorne 05:51:49 -22.8 Dark Up 18.3 186.6 Really Low 05:41:24 - 06:02:15 4701
Kingman/Dolan Springs 05:51:20 -27.5 Dark Up 21.1 190.7 Low 05:40:55 - 06:01:46 4698
Beatty 05:51:37 -24.9 Dark Up 19.7 188.3 Really Low 05:41:12 - 06:02:03 4695
Portola 05:52:00 -20.9 Dark Up 17.2 185.0 Really Low 05:41:34 - 06:02:25 4693
Carson City 05:51:57 -21.7 Dark Up 17.8 185.6 Really Low 05:41:31 - 06:02:22 4692
Gimple 05:52:02 -20.5 Dark Up 16.9 184.7 Really Low 05:41:37 - 06:02:28 4692
Greenville 05:52:02 -20.5 Dark Up 16.9 184.6 Really Low 05:41:37 - 06:02:28 4690
Searchlight/Boulder City 05:51:25 -26.9 Dark Up 20.9 190.0 Low 05:40:59 - 06:01:50 4689
Gardnerville 05:51:56 -22.0 Dark Up 18.0 185.7 Really Low 05:41:30 - 06:02:21 4686
Laughlin/Bullhead City 05:51:23 -27.3 Dark Up 21.2 190.3 Low 05:40:57 - 06:01:48 4685
Quincy 05:52:04 -20.6 Dark Up 17.1 184.6 Really Low 05:41:38 - 06:02:29 4684
Mohave Valley 05:51:22 -27.5 Dark Up 21.4 190.3 Low 05:40:56 - 06:01:47 4676
Lee Vining 05:51:51 -23.0 Dark Up 18.9 186.2 Really Low 05:41:26 - 06:02:17 4672
Bishop 05:51:46 -23.8 Dark Up 19.5 186.9 Really Low 05:41:21 - 06:02:12 4671
Lake Havasu City 05:51:20 -28.0 Dark Up 21.8 190.6 Low 05:40:55 - 06:01:46 4667
Parker 05:51:20 -28.3 Dark Up 22.1 190.6 Low 05:40:55 - 06:01:46 4655
Lone Pine 05:51:44 -24.6 Dark Up 20.2 187.2 Low 05:41:18 - 06:02:09 4654
Blythe 05:51:20 -28.6 Dark Up 22.7 190.4 Low 05:40:55 - 06:01:46 4628
Yuma 05:51:20 -29.4 Dark Up 23.6 190.4 Low 05:40:55 - 06:01:46 4592
Calipatria 05:51:24 -28.6 Dark Up 23.3 189.6 Low 05:40:58 - 06:01:49 4588
Idyllwild 05:51:32 -27.6 Dark Up 22.9 188.5 Low 05:41:06 - 06:01:57 4584
Wildwood 05:51:43 -26.5 Dark Up 22.7 186.8 Low 05:41:18 - 06:02:09 4549
CPSLO 05:51:56 -24.6 Dark Up 21.7 185.0 Low 05:41:31 - 06:02:22 4539

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 471136, (2019/07/15 05:50UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  8.98  24
26Eps Sco      16:50:08.9 -34:17:40  2.3  2.29  22
27 Sco         16:57:11.2 -33:15:35  5.2  0.53  21
PPM 295699     16:56:57.8 -32:20:17  7.9  0.58  20
PPM 295729     16:58:29.4 -32:57:20  9.3  0.14  20
471136         16:58:31.7 -32:48:42 11.6        20
Positions are for J2000

Event circumstances last updated at 2017/08/04 18:10:52 UT

Marc W. Buie, Southwest Research Institute

RECON