RECON: TNO occultation with 06QJ181

Event between 06QJ181 and star GA1060:01488798 with event index number of 223081

Geocentric closest approach at 2019/11/27 11:34:21 UTC

J2000 position of star is 05:58:20.9 +16:26:12
Equinox of date position of star is 05:59:26.2 +16:26:14
Stellar brightness G=14.6, use SENSEUP=128
Star is 166 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 32.2 AU from the Sun and 31.3 AU from the Earth.
The TNO is moving 21.8 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 168 seconds.
The 1-sigma cross-track error in the shadow position is 1745 km.
The sky-plane scale is 22690.6 km/arcsec.

The TNO has an absolute magnitude Hv=6.9
Diameter=245.5 km assuming a 5% albedo -- 11.3 sec chord
Diameter=100.2 km assuming a 30% albedo -- 4.6 sec chord
Dynamical classification is 3:1EE+3:1II
 
 
 
 
 
 

Star training set for 06QJ181, (2019/11/27 11:34UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:15.0 +07:24:33  0.4  9.06 161
Alhena         06:38:51.7 +16:22:50  1.9  9.44 156
137 Tau        05:53:30.2 +14:10:31  5.5  2.68 166
PPM 121693     06:00:06.4 +16:22:25  8.5  0.16 165
PPM 121671     05:59:21.4 +16:22:56  9.5  0.06 165
06QJ181        05:59:29.9 +16:26:14 14.6       165
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 22.4 km RECON observability=1.0 and success probability=11.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 11:32:21 -37.2 Dark Down 48.6 226.9 Up 11:17:51 - 11:46:51 4187
Summerland 11:32:22 -37.4 Dark Down 48.8 226.5 Up 11:17:52 - 11:46:52 4183
Penticton 11:32:21 -37.4 Dark Down 48.9 227.0 Up 11:17:51 - 11:46:51 4153
Okanagan Falls 11:32:21 -37.4 Dark Down 49.1 227.1 Up 11:17:51 - 11:46:51 4135
Oliver 11:32:21 -37.4 Dark Down 49.2 227.3 Up 11:17:51 - 11:46:51 4119
Anarchist Mountain Observatory 11:32:19 -37.3 Dark Down 49.2 227.7 Up 11:17:49 - 11:46:49 4102
Oroville 11:32:19 -37.4 Dark Down 49.3 227.6 Up 11:17:49 - 11:46:49 4095
Tonasket 11:32:19 -37.4 Dark Down 49.5 227.8 Up 11:17:49 - 11:46:49 4073
Okanogan 11:32:19 -37.6 Dark Down 49.8 227.9 Up 11:17:49 - 11:46:49 4040
Brewster 11:32:20 -37.8 Dark Down 50.0 227.9 Up 11:17:50 - 11:46:50 4014
Manson/Chelan 11:32:20 -38.1 Dark Down 50.4 227.6 Up 11:17:50 - 11:46:50 3994
Entiat 11:32:21 -38.1 Dark Down 50.5 227.7 Up 11:17:51 - 11:46:51 3972
Wenatchee 11:32:21 -38.3 Dark Down 50.8 227.8 Up 11:17:51 - 11:46:51 3948
Ellensburg 11:32:21 -38.5 Dark Down 51.2 227.9 Up 11:17:51 - 11:46:51 3907
Yakima 11:32:21 -38.6 Dark Down 51.4 228.3 Up 11:17:51 - 11:46:51 3867
Toppenish/White Swan 11:32:19 -38.5 Dark Down 51.5 228.7 Up 11:17:49 - 11:46:49 3846
Pasco 11:32:16 -37.6 Dark Down 50.9 230.4 Up 11:17:46 - 11:46:46 3833
PNWRO 11:32:15 -37.5 Dark Down 50.9 231.0 Up 11:17:45 - 11:46:45 3809
George/Umatilla 11:32:16 -37.8 Dark Down 51.2 230.5 Up 11:17:46 - 11:46:46 3800
Goldendale 11:32:21 -38.9 Dark Down 52.1 228.7 Up 11:17:51 - 11:46:51 3792
The Dalles 11:32:21 -39.2 Dark Down 52.4 228.4 Up 11:17:51 - 11:46:51 3770
Maupin 11:32:21 -39.2 Dark Down 52.6 229.0 Up 11:17:51 - 11:46:51 3728
Madras/Culver 11:32:20 -39.3 Dark Down 53.0 229.5 Up 11:17:50 - 11:46:50 3673
Sisters 11:32:21 -39.6 Dark Down 53.5 229.2 Up 11:17:51 - 11:46:51 3640
Redmond 11:32:21 -39.4 Dark Down 53.3 229.8 Up 11:17:51 - 11:46:51 3638
Bend 11:32:21 -39.5 Dark Down 53.5 229.8 Up 11:17:51 - 11:46:51 3616
Oregon Observatory 11:32:21 -39.6 Dark Down 53.7 229.8 Up 11:17:51 - 11:46:51 3599
La Pine/Gilchrist 11:32:21 -39.7 Dark Down 53.8 229.9 Up 11:17:51 - 11:46:51 3578
North Lake 11:32:18 -39.3 Dark Down 53.8 231.2 Up 11:17:48 - 11:46:48 3534
Paisley 11:32:17 -39.1 Dark Down 53.9 232.2 Up 11:17:47 - 11:46:47 3477
Chiloquin 11:32:21 -40.1 Dark Down 54.7 230.7 Up 11:17:51 - 11:46:51 3466
Klamath Falls 11:32:21 -40.1 Dark Down 54.9 231.1 Up 11:17:51 - 11:46:51 3431
Lakeview 11:32:15 -39.0 Dark Down 54.1 233.0 Up 11:17:45 - 11:46:45 3426
Tulelake 11:32:19 -39.9 Dark Down 54.9 231.8 Up 11:17:49 - 11:46:49 3403
Cedarville 11:32:14 -39.0 Dark Down 54.4 234.0 Up 11:17:44 - 11:46:44 3358
Fall River/Burney 11:32:18 -39.9 Dark Down 55.4 233.0 Up 11:17:48 - 11:46:48 3310
Niwot 11:31:26 -27.8 Dark Down 45.1 251.3 Up 11:16:56 - 11:45:56 3254
Susanville 11:32:15 -39.5 Dark Down 55.3 234.7 Up 11:17:45 - 11:46:45 3244
Greenville 11:32:16 -39.7 Dark Down 55.7 234.6 Up 11:17:46 - 11:46:46 3216
Gimple 11:32:16 -39.6 Dark Down 55.6 234.7 Up 11:17:46 - 11:46:46 3216
Quincy 11:32:16 -39.7 Dark Down 55.8 234.9 Up 11:17:46 - 11:46:46 3195
Portola 11:32:14 -39.4 Dark Down 55.6 235.6 Up 11:17:44 - 11:46:44 3181
Reno 11:32:12 -38.9 Dark Down 55.3 236.7 Up 11:17:42 - 11:46:42 3153
Carson City 11:32:11 -38.9 Dark Down 55.5 237.2 Up 11:17:41 - 11:46:41 3116
Yerington 11:32:09 -38.4 Dark Down 55.2 238.2 Up 11:17:39 - 11:46:39 3095
Gardnerville 11:32:11 -38.9 Dark Down 55.6 237.6 Up 11:17:41 - 11:46:41 3090
Hawthorne 11:32:06 -38.0 Dark Down 55.1 239.4 Up 11:17:36 - 11:46:36 3047
Tonopah 11:32:01 -37.0 Dark Down 54.4 241.6 Up 11:17:31 - 11:46:31 2998
Lee Vining 11:32:08 -38.4 Dark Down 55.7 239.5 Up 11:17:38 - 11:46:38 2988
Bishop 11:32:04 -37.9 Dark Down 55.5 241.1 Up 11:17:34 - 11:46:34 2925
Beatty 11:31:59 -36.6 Dark Down 54.6 243.6 Up 11:17:29 - 11:46:29 2877
Lone Pine 11:32:03 -37.6 Dark Down 55.6 242.5 Up 11:17:33 - 11:46:33 2845
Indian Springs 11:31:55 -35.8 Dark Down 54.0 245.1 Up 11:17:25 - 11:46:25 2844
Henderson 11:31:52 -35.2 Dark Down 53.7 246.5 Up 11:17:22 - 11:46:22 2788
Searchlight/Boulder City 11:31:51 -35.1 Dark Down 53.9 247.3 Up 11:17:21 - 11:46:21 2727
Patrick 11:31:48 -34.3 Dark Down 53.1 248.4 Up 11:17:18 - 11:46:18 2724
CPSLO 11:32:12 -39.7 Dark Down 58.1 241.2 Up 11:17:42 - 11:46:42 2708
Kingman/Dolan Springs 11:31:48 -34.4 Dark Down 53.3 248.5 Up 11:17:18 - 11:46:18 2700
Laughlin/Bullhead City 11:31:50 -34.8 Dark Down 53.7 248.0 Up 11:17:20 - 11:46:20 2696
DCO 11:31:45 -33.7 Dark Down 52.7 249.4 Up 11:17:15 - 11:46:15 2693
Mohave Valley 11:31:50 -34.8 Dark Down 53.8 248.3 Up 11:17:20 - 11:46:20 2667
Lake Havasu City 11:31:48 -34.6 Dark Down 53.8 249.1 Up 11:17:18 - 11:46:18 2625
Parker 11:31:48 -34.5 Dark Down 53.9 249.6 Up 11:17:18 - 11:46:18 2588
Wildwood 11:32:03 -38.1 Dark Down 57.1 245.3 Up 11:17:33 - 11:46:33 2577
Idyllwild 11:31:56 -36.5 Dark Down 55.9 247.7 Up 11:17:26 - 11:46:26 2540
Blythe 11:31:49 -34.8 Dark Down 54.3 250.0 Up 11:17:19 - 11:46:19 2531
Calipatria 11:31:51 -35.5 Dark Down 55.2 249.7 Up 11:17:21 - 11:46:21 2476
Yuma 11:31:48 -34.7 Dark Down 54.6 251.1 Up 11:17:18 - 11:46:18 2431

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 06QJ181, (2019/11/27 11:34UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  9.06 161
Alhena         06:37:42.8 +16:23:57  1.9  9.44 156
137 Tau        05:52:22.2 +14:10:18  5.5  2.68 166
PPM 121693     05:58:57.3 +16:22:24  8.5  0.16 165
PPM 121671     05:58:12.3 +16:22:54  9.5  0.06 165
06QJ181        05:58:20.9 +16:26:12 14.6       165
Positions are for J2000

Event circumstances last updated at 2018/10/25 20:35:20 UT

Marc W. Buie, Southwest Research Institute

RECON