RECON: TNO occultation with 11UQ62

Event between 11UQ62 and star GA1120:00845385 with event index number of 236021

Geocentric closest approach at 2019/12/01 13:40:19 UTC

J2000 position of star is 04:54:38.2 +22:01:12
Equinox of date position of star is 04:55:44.5 +22:02:55
Stellar brightness G=16.6, use SENSEUP=128
Star is 126 degrees from the moon. Moon is 25% illuminated.
TNO apparent brightness V=21.3

[RECON map]
TNO is 15.8 AU from the Sun and 14.8 AU from the Earth.
The TNO is moving 21.2 km/sec on the sky relative to the star, or, 7.1 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 1140 km.
The sky-plane scale is 10741.3 km/arcsec.

The TNO has an absolute magnitude Hv=9.4
Diameter=78.0 km assuming a 5% albedo -- 3.7 sec chord
Diameter=31.8 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 11UQ62, (2019/12/01 13:40UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:03.9 +16:32:52  0.8  7.06 120
Alnath         05:27:33.2 +28:37:21  1.6  9.72 134
102Iot Tau     05:04:17.3 +21:37:00  4.6  2.01 128
PPM 093881     04:56:01.0 +22:10:38  8.5  0.13 126
PPM 093871     04:55:34.5 +21:56:43 10.2  0.12 126
11UQ62         04:55:49.8 +22:03:03 16.6       126
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 26.6 km RECON observability=0.7 and success probability=1.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 13:35:01 -18.3 Dark Down 22.5 278.0 Low 13:21:01 - 13:49:01 5486
Oroville 13:34:59 -18.1 Dark Down 22.4 278.3 Low 13:20:59 - 13:48:59 5435
Tonasket 13:34:58 -18.1 Dark Down 22.3 278.4 Low 13:20:58 - 13:48:58 5414
Okanogan 13:34:57 -18.1 Dark Down 22.4 278.5 Low 13:20:57 - 13:48:57 5380
Brewster 13:34:57 -18.2 Dark Down 22.5 278.4 Low 13:20:57 - 13:48:57 5350
Manson/Chelan 13:34:57 -18.4 Dark Down 22.7 278.3 Low 13:20:57 - 13:48:57 5322
Entiat 13:34:56 -18.4 Dark Down 22.7 278.3 Low 13:20:56 - 13:48:56 5301
Wenatchee 13:34:55 -18.4 Dark Down 22.7 278.3 Low 13:20:55 - 13:48:55 5275
Ellensburg 13:34:54 -18.4 Dark Down 22.8 278.3 Low 13:20:54 - 13:48:54 5231
Pasco 13:34:51 -17.3 AT Down 21.7 279.6 Low 13:20:51 - 13:48:51 5197
Yakima 13:34:54 -18.4 Dark Down 22.8 278.5 Low 13:20:54 - 13:48:54 5193
PNWRO 13:34:50 -17.1 AT Down 21.6 279.9 Low 13:20:50 - 13:48:50 5179
Toppenish/White Swan 13:34:53 -18.2 Dark Down 22.6 278.7 Low 13:20:53 - 13:48:53 5177
George/Umatilla 13:34:50 -17.4 AT Down 21.8 279.6 Low 13:20:50 - 13:48:50 5160
Goldendale 13:34:52 -18.4 Dark Down 22.8 278.6 Low 13:20:52 - 13:48:52 5115
The Dalles 13:34:52 -18.6 Dark Down 23.1 278.5 Low 13:20:52 - 13:48:52 5085
Maupin 13:34:50 -18.4 Dark Down 22.9 278.7 Low 13:20:50 - 13:48:50 5048
Niwot 13:34:28 -5.8 CT Down 10.4 290.1 Really Low 13:20:28 - 13:48:28 5032
Madras/Culver 13:34:49 -18.3 Dark Down 22.9 278.9 Low 13:20:49 - 13:48:49 4995
Redmond 13:34:48 -18.3 Dark Down 22.9 279.0 Low 13:20:48 - 13:48:48 4960
Sisters 13:34:48 -18.6 Dark Down 23.1 278.8 Low 13:20:48 - 13:48:48 4952
Bend 13:34:47 -18.3 Dark Down 22.9 279.0 Low 13:20:47 - 13:48:47 4936
Oregon Observatory 13:34:47 -18.4 Dark Down 23.0 279.0 Low 13:20:47 - 13:48:47 4916
La Pine/Gilchrist 13:34:46 -18.4 Dark Down 23.0 279.1 Low 13:20:46 - 13:48:46 4895
North Lake 13:34:45 -17.9 AT Down 22.5 279.6 Low 13:20:45 - 13:48:45 4868
Paisley 13:34:43 -17.5 AT Down 22.2 280.1 Low 13:20:43 - 13:48:43 4824
Lakeview 13:34:41 -17.2 AT Down 21.9 280.4 Low 13:20:41 - 13:48:41 4780
Chiloquin 13:34:44 -18.4 Dark Down 23.1 279.3 Low 13:20:44 - 13:48:44 4779
Klamath Falls 13:34:43 -18.3 Dark Down 23.0 279.5 Low 13:20:43 - 13:48:43 4747
Tulelake 13:34:42 -18.0 AT Down 22.7 279.8 Low 13:20:42 - 13:48:42 4729
Cedarville 13:34:40 -16.9 AT Down 21.7 280.8 Low 13:20:40 - 13:48:40 4721
Fall River/Burney 13:34:40 -17.7 AT Down 22.5 280.2 Low 13:20:40 - 13:48:40 4642
Susanville 13:34:38 -17.0 AT Down 21.8 280.9 Low 13:20:38 - 13:48:38 4600
Gimple 13:34:37 -17.1 AT Down 22.0 280.9 Low 13:20:37 - 13:48:37 4567
Greenville 13:34:38 -17.2 AT Down 22.0 280.8 Low 13:20:38 - 13:48:38 4565
Portola 13:34:36 -16.7 AT Down 21.6 281.2 Low 13:20:36 - 13:48:36 4546
Quincy 13:34:37 -17.1 AT Down 22.0 280.9 Low 13:20:37 - 13:48:37 4545
Reno 13:34:35 -16.2 AT Down 21.1 281.7 Low 13:20:35 - 13:48:35 4537
Carson City 13:34:34 -16.1 AT Down 21.0 281.9 Low 13:20:34 - 13:48:34 4503
Yerington 13:34:33 -15.6 AT Down 20.4 282.3 Low 13:20:33 - 13:48:33 4501
Gardnerville 13:34:34 -16.0 AT Down 20.9 282.0 Low 13:20:34 - 13:48:34 4480
Hawthorne 13:34:31 -15.0 AT Down 19.9 282.8 Really Low 13:20:31 - 13:48:31 4470
Tonopah 13:34:29 -13.9 AT Down 18.8 283.7 Really Low 13:20:29 - 13:48:29 4465
Lee Vining 13:34:30 -15.3 AT Down 20.2 282.7 Low 13:20:30 - 13:48:30 4401
Indian Springs 13:34:24 -12.3 AT Down 17.2 285.0 Really Low 13:20:24 - 13:48:24 4364
Beatty 13:34:26 -13.2 AT Down 18.1 284.3 Really Low 13:20:26 - 13:48:26 4364
Bishop 13:34:29 -14.5 AT Down 19.5 283.3 Really Low 13:20:29 - 13:48:29 4362
Henderson 13:34:23 -11.6 CT Down 16.6 285.5 Really Low 13:20:23 - 13:48:23 4333
Patrick 13:34:21 -10.5 CT Down 15.5 286.3 Really Low 13:20:21 - 13:48:21 4306
DCO 13:34:19 -9.9 CT Down 14.9 286.7 Really Low 13:20:19 - 13:48:19 4298
Lone Pine 13:34:27 -14.1 AT Down 19.1 283.7 Really Low 13:20:27 - 13:48:27 4296
Searchlight/Boulder City 13:34:22 -11.3 CT Down 16.4 285.7 Really Low 13:20:22 - 13:48:22 4278
Kingman/Dolan Springs 13:34:20 -10.6 CT Down 15.6 286.2 Really Low 13:20:20 - 13:48:20 4278
Laughlin/Bullhead City 13:34:21 -11.0 CT Down 16.0 286.0 Really Low 13:20:21 - 13:48:21 4260
Mohave Valley 13:34:20 -10.9 CT Down 15.9 286.0 Really Low 13:20:20 - 13:48:20 4233
Lake Havasu City 13:34:19 -10.6 CT Down 15.6 286.3 Really Low 13:20:19 - 13:48:19 4201
Parker 13:34:19 -10.4 CT Down 15.5 286.4 Really Low 13:20:19 - 13:48:19 4167
Blythe 13:34:18 -10.5 CT Down 15.6 286.4 Really Low 13:20:18 - 13:48:18 4105
CPSLO 13:34:27 -15.7 AT Down 20.8 282.8 Low 13:20:27 - 13:48:27 4091
Idyllwild 13:34:20 -12.2 AT Down 17.3 285.3 Really Low 13:20:20 - 13:48:20 4050
Wildwood 13:34:23 -13.8 AT Down 18.9 284.3 Really Low 13:20:23 - 13:48:23 4029
Calipatria 13:34:18 -11.1 CT Down 16.2 286.1 Really Low 13:20:18 - 13:48:18 4026
Yuma 13:34:16 -10.2 CT Down 15.4 286.6 Really Low 13:20:16 - 13:48:16 4011

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 11UQ62, (2019/12/01 13:40UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  7.06 120
Alnath         05:26:17.5 +28:36:23  1.6  9.72 134
102Iot Tau     05:03:05.8 +21:35:23  4.6  2.01 128
PPM 093881     04:54:49.3 +22:08:47  8.5  0.13 126
PPM 093871     04:54:23.0 +21:54:52 10.2  0.12 126
11UQ62         04:54:38.2 +22:01:12 16.6       126
Positions are for J2000

Event circumstances last updated at 2018/06/12 07:52:16 UT

Marc W. Buie, Southwest Research Institute

RECON