RECON: TNO occultation with 471136

Event between (471136) 10EO65 and star UC4-284-113778 with event index number of 190329

Geocentric closest approach at 2019/05/19 07:49:43 UTC

J2000 position of star is 17:10:42.3 -33:16:21
Equinox of date position of star is 17:11:52.8 -33:17:36
Stellar brightness R=15.2, use SENSEUP=128
Star is 21 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=21.2

[RECON map]
TNO is 14.6 AU from the Sun and 13.7 AU from the Earth.
The TNO is moving 18.2 km/sec on the sky relative to the star, or, 6.6 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 613 km.
The sky-plane scale is 9949.6 km/arcsec.

The TNO has an absolute magnitude Hv=9.5
Diameter=75.9 km assuming a 5% albedo -- 4.2 sec chord
Diameter=31.0 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 471136, (2019/05/19 07:50UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:35.9 -26:28:24  0.9 11.26  10
26Eps Sco      16:51:25.4 -34:19:36  2.3  4.39  19
PPM 296042     17:14:14.3 -32:27:36  6.2  0.96  21
PPM 296038     17:14:03.4 -33:22:59  8.2  0.44  21
PPM 295994     17:11:42.1 -33:02:40  9.1  0.26  21
471136         17:11:58.5 -33:17:42 15.2        21
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 15.1 km RECON observability=0.1 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)
Oroville 07:51:22 -21.3 Dark Up 5.4 161.2 Really Low 07:37:21 - 08:05:23 3118
Tonasket 07:51:22 -21.6 Dark Up 5.6 161.2 Really Low 07:37:21 - 08:05:23 3113
Okanogan 07:51:23 -21.9 Dark Up 5.9 161.1 Really Low 07:37:22 - 08:05:24 3104
Brewster 07:51:25 -22.2 Dark Up 6.1 160.9 Really Low 07:37:24 - 08:05:26 3095
Niwot 07:50:34 -28.9 Dark Up 16.2 172.6 Really Low 07:36:33 - 08:04:35 3088
Manson/Chelan 07:51:26 -22.4 Dark Up 6.2 160.6 Really Low 07:37:25 - 08:05:27 3083
Entiat 07:51:27 -22.6 Dark Up 6.4 160.5 Really Low 07:37:26 - 08:05:28 3077
Wenatchee 07:51:28 -22.8 Dark Up 6.6 160.4 Really Low 07:37:27 - 08:05:29 3070
Pasco 07:51:25 -24.0 Dark Up 8.0 161.4 Really Low 07:37:24 - 08:05:26 3065
PNWRO 07:51:25 -24.3 Dark Up 8.3 161.5 Really Low 07:37:24 - 08:05:26 3063
Ellensburg 07:51:30 -23.3 Dark Up 7.0 160.3 Really Low 07:37:29 - 08:05:31 3056
George/Umatilla 07:51:26 -24.4 Dark Up 8.2 161.2 Really Low 07:37:25 - 08:05:27 3052
Yakima 07:51:30 -23.7 Dark Up 7.3 160.2 Really Low 07:37:29 - 08:05:31 3046
Toppenish/White Swan 07:51:30 -23.9 Dark Up 7.6 160.4 Really Low 07:37:29 - 08:05:31 3044
Goldendale 07:51:33 -24.4 Dark Up 8.0 160.0 Really Low 07:37:32 - 08:05:34 3022
The Dalles 07:51:34 -24.6 Dark Up 8.1 159.7 Really Low 07:37:33 - 08:05:35 3009
Maupin 07:51:34 -25.1 Dark Up 8.5 159.8 Really Low 07:37:33 - 08:05:35 3000
Madras/Culver 07:51:36 -25.6 Dark Up 9.0 159.7 Really Low 07:37:35 - 08:05:37 2984
Redmond 07:51:37 -26.0 Dark Up 9.4 159.6 Really Low 07:37:36 - 08:05:38 2973
Sisters 07:51:38 -25.9 Dark Up 9.3 159.3 Really Low 07:37:37 - 08:05:39 2966
Bend 07:51:37 -26.2 Dark Up 9.5 159.5 Really Low 07:37:36 - 08:05:38 2964
Oregon Observatory 07:51:38 -26.3 Dark Up 9.7 159.4 Really Low 07:37:37 - 08:05:39 2956
La Pine/Gilchrist 07:51:39 -26.5 Dark Up 9.8 159.3 Really Low 07:37:38 - 08:05:40 2949
North Lake 07:51:37 -27.0 Dark Up 10.4 159.8 Really Low 07:37:36 - 08:05:38 2948
Paisley 07:51:37 -27.6 Dark Up 11.0 160.1 Really Low 07:37:36 - 08:05:38 2939
Lakeview 07:51:37 -28.1 Dark Up 11.5 160.2 Really Low 07:37:36 - 08:05:38 2926
Cedarville 07:51:37 -28.7 Dark Up 12.2 160.3 Really Low 07:37:36 - 08:05:38 2909
Chiloquin 07:51:42 -27.6 Dark Up 10.8 159.0 Really Low 07:37:41 - 08:05:43 2907
Klamath Falls 07:51:42 -28.0 Dark Up 11.1 159.0 Really Low 07:37:41 - 08:05:43 2898
Tulelake 07:51:41 -28.3 Dark Up 11.5 159.3 Really Low 07:37:40 - 08:05:42 2896
Fall River/Burney 07:51:43 -29.2 Dark Up 12.3 159.3 Really Low 07:37:42 - 08:05:44 2867
Susanville 07:51:40 -29.8 Dark Up 13.1 159.8 Really Low 07:37:39 - 08:05:41 2860
Reno 07:51:38 -30.7 Dark Up 14.2 160.4 Really Low 07:37:37 - 08:05:39 2847
Gimple 07:51:42 -30.1 Dark Up 13.3 159.6 Really Low 07:37:41 - 08:05:43 2846
Greenville 07:51:42 -30.1 Dark Up 13.3 159.5 Really Low 07:37:41 - 08:05:43 2844
Portola 07:51:41 -30.4 Dark Up 13.7 159.9 Really Low 07:37:40 - 08:05:42 2843
Tonopah 07:51:30 -32.2 Dark Up 16.2 162.4 Really Low 07:37:29 - 08:05:31 2842
Yerington 07:51:37 -31.3 Dark Up 14.9 160.9 Really Low 07:37:36 - 08:05:38 2840
Quincy 07:51:43 -30.3 Dark Up 13.5 159.5 Really Low 07:37:42 - 08:05:44 2837
Carson City 07:51:39 -31.1 Dark Up 14.5 160.4 Really Low 07:37:38 - 08:05:40 2834
Hawthorne 07:51:35 -31.7 Dark Up 15.4 161.3 Really Low 07:37:34 - 08:05:36 2833
Gardnerville 07:51:39 -31.3 Dark Up 14.8 160.4 Really Low 07:37:38 - 08:05:40 2826
Indian Springs 07:51:24 -33.6 Dark Up 18.0 163.5 Really Low 07:37:23 - 08:05:25 2812
Beatty 07:51:29 -33.3 Dark Up 17.4 162.7 Really Low 07:37:28 - 08:05:30 2805
Henderson 07:51:22 -34.1 Dark Up 18.6 164.1 Really Low 07:37:21 - 08:05:23 2803
Lee Vining 07:51:38 -32.3 Dark Up 15.8 160.8 Really Low 07:37:37 - 08:05:39 2801
Patrick 07:51:17 -34.7 Dark Up 19.5 165.0 Really Low 07:37:16 - 08:05:18 2796
DCO 07:51:14 -34.9 Dark Up 19.9 165.5 Really Low 07:37:13 - 08:05:15 2795
Bishop 07:51:35 -32.9 Dark Up 16.6 161.4 Really Low 07:37:34 - 08:05:36 2792
Kingman/Dolan Springs 07:51:18 -34.9 Dark Up 19.7 164.8 Really Low 07:37:17 - 08:05:19 2783
Searchlight/Boulder City 07:51:22 -34.7 Dark Up 19.2 164.1 Really Low 07:37:21 - 08:05:23 2780
Laughlin/Bullhead City 07:51:20 -35.0 Dark Up 19.6 164.3 Really Low 07:37:19 - 08:05:21 2773
Lone Pine 07:51:35 -33.7 Dark Up 17.4 161.6 Really Low 07:37:34 - 08:05:36 2768
Mohave Valley 07:51:21 -35.2 Dark Up 19.8 164.3 Really Low 07:37:20 - 08:05:22 2762
Lake Havasu City 07:51:20 -35.6 Dark Up 20.3 164.5 Low 07:37:19 - 08:05:21 2749
Parker 07:51:20 -36.0 Dark Up 20.6 164.5 Low 07:37:19 - 08:05:21 2734
Blythe 07:51:22 -36.5 Dark Up 21.1 164.2 Low 07:37:21 - 08:05:23 2704
Idyllwild 07:51:32 -36.5 Dark Up 20.5 162.4 Low 07:37:31 - 08:05:33 2670
Calipatria 07:51:27 -37.1 Dark Up 21.3 163.3 Low 07:37:26 - 08:05:28 2664
Yuma 07:51:23 -37.4 Dark Up 21.9 164.0 Low 07:37:22 - 08:05:24 2661
CPSLO 07:51:48 -34.9 Dark Up 17.9 159.3 Really Low 07:37:47 - 08:05:49 2657
Wildwood 07:51:40 -36.2 Dark Up 19.6 160.9 Really Low 07:37:39 - 08:05:41 2648

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, (2019/05/19 07:50UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 11.26  10
26Eps Sco      16:50:08.9 -34:17:40  2.3  4.39  19
PPM 296042     17:12:58.5 -32:26:18  6.2  0.96  21
PPM 296038     17:12:47.1 -33:21:40  8.2  0.44  21
PPM 295994     17:10:26.1 -33:01:17  9.1  0.26  21
471136         17:10:42.3 -33:16:21 15.2        21
Positions are for J2000

Event circumstances last updated at 2017/12/06 18:57:26 UT

Marc W. Buie, Southwest Research Institute

RECON