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 07:49:42 UTC

J2000 position of star is 17:10:42.3 -33:16:21
Equinox of date position of star is 17:11:50.8 -33:17:34
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 132 seconds.
The 1-sigma cross-track error in the shadow position is 576 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 15.2 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 07:51:21 -21.3 Dark Up 5.4 161.2 Really Low 07:39:51 - 08:02:50 3123
Tonasket 07:51:21 -21.6 Dark Up 5.6 161.2 Really Low 07:39:52 - 08:02:51 3119
Okanogan 07:51:22 -21.9 Dark Up 5.9 161.1 Really Low 07:39:53 - 08:02:52 3109
Brewster 07:51:23 -22.2 Dark Up 6.1 160.9 Really Low 07:39:54 - 08:02:53 3100
Niwot 07:50:32 -28.9 Dark Up 16.2 172.6 Really Low 07:39:02 - 08:02:01 3093
Manson/Chelan 07:51:25 -22.4 Dark Up 6.2 160.6 Really Low 07:39:56 - 08:02:55 3089
Entiat 07:51:26 -22.6 Dark Up 6.4 160.5 Really Low 07:39:56 - 08:02:55 3083
Wenatchee 07:51:26 -22.8 Dark Up 6.6 160.4 Really Low 07:39:57 - 08:02:56 3075
Pasco 07:51:24 -24.0 Dark Up 8.0 161.4 Really Low 07:39:54 - 08:02:53 3070
PNWRO 07:51:23 -24.3 Dark Up 8.3 161.5 Really Low 07:39:54 - 08:02:53 3068
Ellensburg 07:51:28 -23.3 Dark Up 7.0 160.2 Really Low 07:39:59 - 08:02:58 3062
George/Umatilla 07:51:25 -24.4 Dark Up 8.2 161.2 Really Low 07:39:56 - 08:02:55 3058
Yakima 07:51:29 -23.7 Dark Up 7.3 160.2 Really Low 07:40:00 - 08:02:59 3052
Toppenish/White Swan 07:51:29 -23.9 Dark Up 7.6 160.3 Really Low 07:39:59 - 08:02:58 3050
Goldendale 07:51:31 -24.4 Dark Up 8.0 160.0 Really Low 07:40:02 - 08:03:01 3028
The Dalles 07:51:33 -24.6 Dark Up 8.1 159.7 Really Low 07:40:04 - 08:03:03 3015
Maupin 07:51:33 -25.1 Dark Up 8.5 159.8 Really Low 07:40:04 - 08:03:03 3006
Madras/Culver 07:51:34 -25.6 Dark Up 9.0 159.7 Really Low 07:40:05 - 08:03:04 2991
Redmond 07:51:35 -26.0 Dark Up 9.4 159.6 Really Low 07:40:06 - 08:03:05 2980
Sisters 07:51:37 -25.9 Dark Up 9.3 159.3 Really Low 07:40:07 - 08:03:06 2972
Bend 07:51:36 -26.2 Dark Up 9.5 159.5 Really Low 07:40:07 - 08:03:06 2971
Oregon Observatory 07:51:37 -26.3 Dark Up 9.7 159.4 Really Low 07:40:07 - 08:03:06 2963
La Pine/Gilchrist 07:51:37 -26.5 Dark Up 9.8 159.3 Really Low 07:40:08 - 08:03:07 2956
North Lake 07:51:36 -27.0 Dark Up 10.4 159.8 Really Low 07:40:06 - 08:03:05 2955
Paisley 07:51:35 -27.6 Dark Up 11.0 160.0 Really Low 07:40:06 - 08:03:05 2946
Lakeview 07:51:35 -28.1 Dark Up 11.5 160.2 Really Low 07:40:06 - 08:03:05 2933
Cedarville 07:51:36 -28.7 Dark Up 12.2 160.3 Really Low 07:40:06 - 08:03:05 2916
Chiloquin 07:51:41 -27.6 Dark Up 10.8 159.0 Really Low 07:40:11 - 08:03:10 2915
Klamath Falls 07:51:41 -28.0 Dark Up 11.1 159.0 Really Low 07:40:12 - 08:03:11 2905
Tulelake 07:51:40 -28.3 Dark Up 11.5 159.3 Really Low 07:40:11 - 08:03:10 2903
Fall River/Burney 07:51:42 -29.2 Dark Up 12.3 159.3 Really Low 07:40:12 - 08:03:11 2874
Susanville 07:51:39 -29.8 Dark Up 13.1 159.8 Really Low 07:40:10 - 08:03:09 2868
Reno 07:51:37 -30.7 Dark Up 14.2 160.4 Really Low 07:40:08 - 08:03:07 2854
Gimple 07:51:41 -30.1 Dark Up 13.3 159.6 Really Low 07:40:11 - 08:03:10 2853
Greenville 07:51:41 -30.1 Dark Up 13.3 159.5 Really Low 07:40:11 - 08:03:10 2851
Portola 07:51:40 -30.4 Dark Up 13.7 159.9 Really Low 07:40:10 - 08:03:09 2850
Tonopah 07:51:28 -32.2 Dark Up 16.2 162.4 Really Low 07:39:58 - 08:02:57 2850
Yerington 07:51:35 -31.3 Dark Up 14.9 160.9 Really Low 07:40:06 - 08:03:05 2846
Quincy 07:51:41 -30.3 Dark Up 13.5 159.5 Really Low 07:40:12 - 08:03:11 2844
Carson City 07:51:37 -31.1 Dark Up 14.5 160.4 Really Low 07:40:08 - 08:03:07 2841
Hawthorne 07:51:33 -31.7 Dark Up 15.4 161.3 Really Low 07:40:04 - 08:03:03 2840
Gardnerville 07:51:38 -31.3 Dark Up 14.7 160.4 Really Low 07:40:08 - 08:03:07 2833
Indian Springs 07:51:22 -33.6 Dark Up 18.0 163.5 Really Low 07:39:53 - 08:02:52 2818
Beatty 07:51:27 -33.3 Dark Up 17.4 162.7 Really Low 07:39:57 - 08:02:56 2812
Lee Vining 07:51:36 -32.3 Dark Up 15.8 160.8 Really Low 07:40:07 - 08:03:06 2809
Henderson 07:51:20 -34.1 Dark Up 18.6 164.1 Really Low 07:39:51 - 08:02:50 2809
Patrick 07:51:16 -34.7 Dark Up 19.5 165.0 Really Low 07:39:46 - 08:02:45 2802
DCO 07:51:13 -34.9 Dark Up 19.9 165.5 Really Low 07:39:43 - 08:02:42 2801
Bishop 07:51:34 -32.9 Dark Up 16.6 161.4 Really Low 07:40:04 - 08:03:03 2799
Kingman/Dolan Springs 07:51:17 -34.9 Dark Up 19.7 164.8 Really Low 07:39:47 - 08:02:46 2789
Searchlight/Boulder City 07:51:20 -34.7 Dark Up 19.2 164.1 Really Low 07:39:51 - 08:02:50 2786
Laughlin/Bullhead City 07:51:19 -35.0 Dark Up 19.6 164.3 Really Low 07:39:49 - 08:02:48 2779
Lone Pine 07:51:33 -33.7 Dark Up 17.4 161.6 Really Low 07:40:04 - 08:03:03 2774
Mohave Valley 07:51:19 -35.2 Dark Up 19.8 164.3 Really Low 07:39:49 - 08:02:48 2767
Lake Havasu City 07:51:19 -35.6 Dark Up 20.3 164.5 Low 07:39:49 - 08:02:48 2754
Parker 07:51:19 -36.0 Dark Up 20.6 164.5 Low 07:39:49 - 08:02:48 2739
Blythe 07:51:20 -36.5 Dark Up 21.1 164.2 Low 07:39:51 - 08:02:50 2710
Idyllwild 07:51:30 -36.5 Dark Up 20.5 162.4 Low 07:40:01 - 08:03:00 2677
Calipatria 07:51:26 -37.1 Dark Up 21.3 163.3 Low 07:39:56 - 08:02:55 2670
Yuma 07:51:22 -37.4 Dark Up 21.9 164.0 Low 07:39:52 - 08:02:51 2666
CPSLO 07:51:47 -34.9 Dark Up 17.9 159.3 Really Low 07:40:17 - 08:03:16 2664
Wildwood 07:51:39 -36.2 Dark Up 19.6 160.9 Really Low 07:40:09 - 08:03:08 2654

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      16:50:09.0 -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 2017/06/01 18:14:00 UT

Marc W. Buie, Southwest Research Institute

RECON