RECON: TNO occultation with 471136

Event between (471136) 10EO65 and star GA0560:18823158 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 17:11:54.8 -33:17:39
Stellar brightness G=14.5, 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 -33:17:43 14.5        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=2.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 07:50:23 -20.7 Dark Up 4.7 160.9 Really Low 07:36:22 - 08:04:24 126
Oroville 07:50:24 -21.3 Dark Up 5.3 161.0 Really Low 07:36:23 - 08:04:25 117
Tonasket 07:50:24 -21.6 Dark Up 5.5 161.0 Really Low 07:36:23 - 08:04:25 112
Okanogan 07:50:25 -21.9 Dark Up 5.8 160.9 Really Low 07:36:24 - 08:04:26 103
Brewster 07:50:26 -22.2 Dark Up 6.0 160.7 Really Low 07:36:25 - 08:04:27 93
Niwot 07:49:35 -28.9 Dark Up 16.2 172.4 Really Low 07:35:34 - 08:03:36 89
Manson/Chelan 07:50:28 -22.4 Dark Up 6.2 160.4 Really Low 07:36:27 - 08:04:29 82
Entiat 07:50:29 -22.6 Dark Up 6.3 160.3 Really Low 07:36:28 - 08:04:30 76
Wenatchee 07:50:29 -22.8 Dark Up 6.6 160.2 Really Low 07:36:28 - 08:04:30 69
Pasco 07:50:27 -24.0 Dark Up 7.9 161.2 Really Low 07:36:26 - 08:04:28 64
PNWRO 07:50:27 -24.3 Dark Up 8.2 161.3 Really Low 07:36:26 - 08:04:28 62
Ellensburg 07:50:31 -23.3 Dark Up 6.9 160.1 Really Low 07:36:30 - 08:04:32 55
George/Umatilla 07:50:28 -24.4 Dark Up 8.2 161.0 Really Low 07:36:27 - 08:04:29 51
Yakima 07:50:32 -23.7 Dark Up 7.3 160.0 Really Low 07:36:31 - 08:04:33 45
Toppenish/White Swan 07:50:32 -23.9 Dark Up 7.5 160.2 Really Low 07:36:31 - 08:04:33 43
Goldendale 07:50:34 -24.4 Dark Up 7.9 159.8 Really Low 07:36:33 - 08:04:35 21
The Dalles 07:50:36 -24.6 Dark Up 8.1 159.5 Really Low 07:36:35 - 08:04:37 8
Maupin 07:50:36 -25.1 Dark Up 8.5 159.6 Really Low 07:36:35 - 08:04:37 -2
Madras/Culver 07:50:37 -25.6 Dark Up 9.0 159.5 Really Low 07:36:36 - 08:04:38 -18
Redmond 07:50:38 -26.0 Dark Up 9.3 159.4 Really Low 07:36:37 - 08:04:39 -29
Sisters 07:50:40 -25.9 Dark Up 9.2 159.1 Really Low 07:36:39 - 08:04:41 -36
Bend 07:50:39 -26.2 Dark Up 9.5 159.3 Really Low 07:36:38 - 08:04:40 -38
Oregon Observatory 07:50:40 -26.3 Dark Up 9.6 159.2 Really Low 07:36:39 - 08:04:41 -45
La Pine/Gilchrist 07:50:41 -26.5 Dark Up 9.8 159.1 Really Low 07:36:40 - 08:04:42 -53
North Lake 07:50:39 -27.0 Dark Up 10.3 159.6 Really Low 07:36:38 - 08:04:40 -54
Paisley 07:50:39 -27.6 Dark Up 11.0 159.9 Really Low 07:36:38 - 08:04:40 -63
Lakeview 07:50:39 -28.1 Dark Up 11.5 160.0 Really Low 07:36:38 - 08:04:40 -75
Cedarville 07:50:39 -28.7 Dark Up 12.1 160.1 Really Low 07:36:38 - 08:04:40 -93
Chiloquin 07:50:44 -27.6 Dark Up 10.7 158.8 Really Low 07:36:43 - 08:04:45 -95
Klamath Falls 07:50:44 -28.0 Dark Up 11.1 158.8 Really Low 07:36:43 - 08:04:45 -104
Tulelake 07:50:43 -28.3 Dark Up 11.4 159.1 Really Low 07:36:42 - 08:04:44 -106
Fall River/Burney 07:50:45 -29.2 Dark Up 12.3 159.1 Really Low 07:36:44 - 08:04:46 -135
Susanville 07:50:42 -29.8 Dark Up 13.1 159.6 Really Low 07:36:41 - 08:04:43 -141
Reno 07:50:40 -30.7 Dark Up 14.1 160.2 Really Low 07:36:39 - 08:04:41 -155
Gimple 07:50:44 -30.1 Dark Up 13.3 159.4 Really Low 07:36:43 - 08:04:45 -156
Greenville 07:50:44 -30.1 Dark Up 13.2 159.4 Really Low 07:36:43 - 08:04:45 -158
Tonopah 07:50:31 -32.2 Dark Up 16.2 162.2 Really Low 07:36:30 - 08:04:32 -159
Portola 07:50:42 -30.4 Dark Up 13.7 159.7 Really Low 07:36:41 - 08:04:43 -159
Yerington 07:50:38 -31.3 Dark Up 14.8 160.7 Really Low 07:36:37 - 08:04:39 -162
Quincy 07:50:44 -30.3 Dark Up 13.4 159.3 Really Low 07:36:43 - 08:04:45 -165
Carson City 07:50:41 -31.1 Dark Up 14.4 160.2 Really Low 07:36:40 - 08:04:42 -168
Hawthorne 07:50:37 -31.7 Dark Up 15.4 161.1 Really Low 07:36:36 - 08:04:38 -169
Gardnerville 07:50:41 -31.3 Dark Up 14.7 160.2 Really Low 07:36:40 - 08:04:42 -176
Indian Springs 07:50:26 -33.6 Dark Up 17.9 163.3 Really Low 07:36:25 - 08:04:27 -189
Beatty 07:50:31 -33.3 Dark Up 17.4 162.5 Really Low 07:36:30 - 08:04:32 -196
Henderson 07:50:23 -34.1 Dark Up 18.6 163.9 Really Low 07:36:22 - 08:04:24 -198
Lee Vining 07:50:39 -32.3 Dark Up 15.8 160.6 Really Low 07:36:38 - 08:04:40 -201
Patrick 07:50:19 -34.7 Dark Up 19.4 164.7 Really Low 07:36:18 - 08:04:20 -205
DCO 07:50:16 -34.9 Dark Up 19.9 165.3 Really Low 07:36:15 - 08:04:17 -206
Bishop 07:50:37 -32.9 Dark Up 16.5 161.2 Really Low 07:36:36 - 08:04:38 -210
Kingman/Dolan Springs 07:50:20 -34.9 Dark Up 19.6 164.6 Really Low 07:36:19 - 08:04:21 -218
Searchlight/Boulder City 07:50:24 -34.7 Dark Up 19.2 163.9 Really Low 07:36:23 - 08:04:25 -221
Laughlin/Bullhead City 07:50:22 -35.0 Dark Up 19.5 164.1 Really Low 07:36:21 - 08:04:23 -228
Lone Pine 07:50:37 -33.7 Dark Up 17.3 161.4 Really Low 07:36:36 - 08:04:38 -234
Mohave Valley 07:50:23 -35.3 Dark Up 19.8 164.1 Really Low 07:36:22 - 08:04:24 -239
Lake Havasu City 07:50:22 -35.6 Dark Up 20.2 164.3 Low 07:36:21 - 08:04:23 -252
Parker 07:50:22 -36.0 Dark Up 20.6 164.3 Low 07:36:21 - 08:04:23 -268
Blythe 07:50:24 -36.5 Dark Up 21.0 164.0 Low 07:36:23 - 08:04:25 -297
Idyllwild 07:50:34 -36.5 Dark Up 20.4 162.2 Low 07:36:33 - 08:04:35 -332
Calipatria 07:50:29 -37.1 Dark Up 21.3 163.1 Low 07:36:28 - 08:04:30 -337
Yuma 07:50:25 -37.5 Dark Up 21.9 163.8 Low 07:36:24 - 08:04:26 -340
CPSLO 07:50:50 -34.9 Dark Up 17.9 159.1 Really Low 07:36:49 - 08:04:51 -345
Wildwood 07:50:42 -36.2 Dark Up 19.6 160.7 Really Low 07:36:41 - 08:04:43 -354

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 14.5        21
Positions are for J2000

Event circumstances last updated at 2018/06/11 23:14:04 UT

Marc W. Buie, Southwest Research Institute

RECON