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 16:59:41.7 -32:50:16
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 181 seconds.
The 1-sigma cross-track error in the shadow position is 1280 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 8.8 km RECON observability=0.3 and success probability=0.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Niwot 05:50:44 -25.8 Dark Up 14.6 197.9 Really Low 05:35:44 - 06:05:44 4992
Oroville 05:52:07 -13.6 AT Up 8.0 185.7 Really Low 05:37:07 - 06:07:07 4895
Tonasket 05:52:06 -13.8 AT Up 8.3 185.7 Really Low 05:37:06 - 06:07:06 4892
Okanogan 05:52:07 -14.1 AT Up 8.6 185.6 Really Low 05:37:07 - 06:07:07 4885
Brewster 05:52:08 -14.2 AT Up 8.9 185.5 Really Low 05:37:08 - 06:07:08 4877
Manson/Chelan 05:52:10 -14.3 AT Up 9.1 185.2 Really Low 05:37:10 - 06:07:10 4866
PNWRO 05:52:02 -16.3 AT Up 10.9 186.2 Really Low 05:37:02 - 06:07:02 4865
Pasco 05:52:03 -16.0 AT Up 10.7 186.0 Really Low 05:37:03 - 06:07:03 4864
Entiat 05:52:09 -14.5 AT Up 9.3 185.1 Really Low 05:37:09 - 06:07:09 4861
Wenatchee 05:52:10 -14.6 AT Up 9.6 185.0 Really Low 05:37:10 - 06:07:10 4855
George/Umatilla 05:52:04 -16.3 AT Up 11.0 185.9 Really Low 05:37:04 - 06:07:04 4853
Ellensburg 05:52:09 -14.9 AT Up 10.0 184.8 Really Low 05:37:09 - 06:07:09 4844
Toppenish/White Swan 05:52:09 -15.5 AT Up 10.6 185.0 Really Low 05:37:09 - 06:07:09 4837
Yakima 05:52:09 -15.2 AT Up 10.4 184.8 Really Low 05:37:09 - 06:07:09 4837
Goldendale 05:52:10 -15.8 AT Up 11.2 184.6 Really Low 05:37:10 - 06:07:10 4817
The Dalles 05:52:12 -15.8 AT Up 11.5 184.3 Really Low 05:37:12 - 06:07:12 4804
Maupin 05:52:10 -16.2 AT Up 11.9 184.4 Really Low 05:37:10 - 06:07:10 4799
Madras/Culver 05:52:11 -16.7 AT Up 12.4 184.4 Really Low 05:37:11 - 06:07:11 4787
Redmond 05:52:11 -17.0 AT Up 12.8 184.3 Really Low 05:37:11 - 06:07:11 4778
Bend 05:52:11 -17.1 AT Up 13.0 184.2 Really Low 05:37:11 - 06:07:11 4770
Sisters 05:52:12 -16.8 AT Up 12.8 184.0 Really Low 05:37:12 - 06:07:12 4769
Oregon Observatory 05:52:12 -17.2 AT Up 13.2 184.1 Really Low 05:37:12 - 06:07:12 4763
North Lake 05:52:09 -17.9 AT Up 13.8 184.6 Really Low 05:37:09 - 06:07:09 4762
Paisley 05:52:06 -18.5 Dark Up 14.3 184.9 Really Low 05:37:06 - 06:07:06 4758
La Pine/Gilchrist 05:52:11 -17.3 AT Up 13.4 184.1 Really Low 05:37:11 - 06:07:11 4757
Lakeview 05:52:04 -19.0 Dark Up 14.8 185.1 Really Low 05:37:04 - 06:07:04 4751
Cedarville 05:52:03 -19.6 Dark Up 15.5 185.2 Really Low 05:37:03 - 06:07:03 4739
Chiloquin 05:52:12 -18.1 Dark Up 14.5 183.8 Really Low 05:37:12 - 06:07:12 4722
Tulelake 05:52:09 -18.7 Dark Up 15.1 184.1 Really Low 05:37:09 - 06:07:09 4717
Klamath Falls 05:52:11 -18.4 Dark Up 14.9 183.9 Really Low 05:37:11 - 06:07:11 4716
Tonopah 05:51:43 -23.7 Dark Up 18.6 187.9 Really Low 05:36:43 - 06:06:43 4713
DCO 05:51:20 -27.9 Dark Up 21.0 191.6 Low 05:36:20 - 06:06:20 4708
Patrick 05:51:21 -27.3 Dark Up 20.8 190.9 Low 05:36:21 - 06:06:21 4703
Indian Springs 05:51:32 -25.6 Dark Up 19.9 189.3 Really Low 05:36:32 - 06:06:32 4702
Henderson 05:51:27 -26.4 Dark Up 20.4 189.9 Low 05:36:27 - 06:06:27 4700
Susanville 05:52:04 -20.4 Dark Up 16.6 184.8 Really Low 05:37:04 - 06:07:04 4697
Fall River/Burney 05:52:08 -19.5 Dark Up 16.0 184.2 Really Low 05:37:08 - 06:07:08 4695
Yerington 05:51:54 -22.2 Dark Up 17.9 186.2 Really Low 05:36:54 - 06:06:54 4694
Reno 05:51:58 -21.4 Dark Up 17.4 185.6 Really Low 05:36:58 - 06:06:58 4694
Hawthorne 05:51:51 -22.8 Dark Up 18.3 186.6 Really Low 05:36:51 - 06:06:51 4693
Kingman/Dolan Springs 05:51:21 -27.5 Dark Up 21.1 190.8 Low 05:36:21 - 06:06:21 4691
Beatty 05:51:39 -24.9 Dark Up 19.7 188.3 Really Low 05:36:39 - 06:06:39 4687
Portola 05:52:02 -20.9 Dark Up 17.2 185.0 Really Low 05:37:02 - 06:07:02 4685
Gimple 05:52:04 -20.5 Dark Up 16.9 184.7 Really Low 05:37:04 - 06:07:04 4684
Carson City 05:51:58 -21.7 Dark Up 17.8 185.6 Really Low 05:36:58 - 06:06:58 4684
Greenville 05:52:05 -20.5 Dark Up 16.9 184.6 Really Low 05:37:05 - 06:07:05 4681
Searchlight/Boulder City 05:51:26 -26.9 Dark Up 20.9 190.0 Low 05:36:26 - 06:06:26 4681
Laughlin/Bullhead City 05:51:24 -27.3 Dark Up 21.2 190.3 Low 05:36:24 - 06:06:24 4679
Gardnerville 05:51:57 -22.0 Dark Up 18.0 185.7 Really Low 05:36:57 - 06:06:57 4677
Quincy 05:52:04 -20.6 Dark Up 17.1 184.6 Really Low 05:37:04 - 06:07:04 4676
Mohave Valley 05:51:23 -27.5 Dark Up 21.4 190.3 Low 05:36:23 - 06:06:23 4669
Lee Vining 05:51:53 -23.0 Dark Up 18.9 186.2 Really Low 05:36:53 - 06:06:53 4663
Bishop 05:51:48 -23.9 Dark Up 19.5 186.9 Really Low 05:36:48 - 06:06:48 4662
Lake Havasu City 05:51:21 -28.0 Dark Up 21.8 190.6 Low 05:36:21 - 06:06:21 4661
Parker 05:51:21 -28.3 Dark Up 22.1 190.6 Low 05:36:21 - 06:06:21 4648
Lone Pine 05:51:45 -24.6 Dark Up 20.2 187.2 Low 05:36:45 - 06:06:45 4645
Blythe 05:51:21 -28.6 Dark Up 22.7 190.4 Low 05:36:21 - 06:06:21 4622
Yuma 05:51:20 -29.4 Dark Up 23.6 190.4 Low 05:36:20 - 06:06:20 4585
Calipatria 05:51:25 -28.6 Dark Up 23.3 189.6 Low 05:36:25 - 06:06:25 4581
Idyllwild 05:51:34 -27.6 Dark Up 22.9 188.5 Low 05:36:34 - 06:06:34 4576
Wildwood 05:51:44 -26.5 Dark Up 22.7 186.8 Low 05:36:44 - 06:06:44 4541
CPSLO 05:51:57 -24.6 Dark Up 21.7 185.0 Low 05:36:57 - 06:06:57 4531

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 2017/12/06 19:08:05 UT

Marc W. Buie, Southwest Research Institute

RECON