RECON: TNO occultation with 11UQ62

Event between 11UQ62 and star GA1100:00735964 with event index number of 239675

Geocentric closest approach at 2020/01/05 02:09:00 UTC

J2000 position of star is 04:48:10.7 +21:38:45
Equinox of date position of star is 04:49:16.7 +21:40:38
Stellar brightness G=14.5, use SENSEUP=128
Star is 39 degrees from the moon. Moon is 68% illuminated.
TNO apparent brightness V=21.5

[RECON map]
TNO is 15.8 AU from the Sun and 15.0 AU from the Earth.
The TNO is moving 17.1 km/sec on the sky relative to the star, or, 5.7 arcsec/hr.
The 1-sigma error in the time of the event is 205 seconds.
The 1-sigma cross-track error in the shadow position is 1007 km.
The sky-plane scale is 10867.5 km/arcsec.

The TNO has an absolute magnitude Hv=9.4
Diameter=78.0 km assuming a 5% albedo -- 4.6 sec chord
Diameter=31.8 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 11UQ62, (2020/01/05 02:09UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:04.3 +16:32:53  0.8  5.90  35
Alnath         05:27:33.5 +28:37:21  1.6 11.08  49
PPM 093742     04:46:55.1 +23:39:48  6.1  2.06  38
PPM 093789     04:49:55.3 +21:20:58  7.3  0.35  39
PPM 093794     04:50:12.5 +21:49:31 11.8  0.24  39
11UQ62         04:49:22.4 +21:40:47 14.5        39
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 4.4 sigma about the mid-time.
The median site spacing is 20.4 km RECON observability=0.8 and success probability=9.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 02:09:52 -18.1 Dark Up 38.8 102.3 Up 01:54:52 - 02:24:52 3508
Oroville 02:09:55 -18.0 Dark Up 39.0 102.0 Up 01:54:55 - 02:24:55 3466
Tonasket 02:09:55 -18.0 AT Up 39.1 101.8 Up 01:54:55 - 02:24:55 3450
Okanogan 02:09:58 -17.8 AT Up 39.1 101.4 Up 01:54:58 - 02:24:58 3433
Brewster 02:09:59 -17.6 AT Up 39.0 101.0 Up 01:54:59 - 02:24:59 3421
Manson/Chelan 02:10:02 -17.3 AT Up 38.8 100.6 Up 01:55:02 - 02:25:02 3420
Entiat 02:10:02 -17.2 AT Up 38.8 100.3 Up 01:55:02 - 02:25:02 3407
Wenatchee 02:10:04 -17.1 AT Up 38.8 100.0 Up 01:55:04 - 02:25:04 3394
Ellensburg 02:10:06 -16.9 AT Up 38.7 99.5 Up 01:55:06 - 02:25:06 3373
Yakima 02:10:08 -16.7 AT Up 38.7 99.2 Up 01:55:08 - 02:25:08 3346
Toppenish/White Swan 02:10:08 -16.8 AT Up 38.9 99.2 Up 01:55:08 - 02:25:08 3326
Goldendale 02:10:08 -16.4 AT Up 38.7 98.4 Up 01:55:08 - 02:25:08 3304
The Dalles 02:10:08 -16.1 AT Up 38.5 97.9 Up 01:55:08 - 02:25:08 3302
Pasco 02:10:08 -17.6 AT Up 39.8 100.1 Up 01:55:08 - 02:25:08 3275
Maupin 02:10:08 -16.0 AT Up 38.6 97.7 Up 01:55:08 - 02:25:08 3271
George/Umatilla 02:10:08 -17.4 AT Up 39.7 99.7 Up 01:55:08 - 02:25:08 3259
PNWRO 02:10:08 -17.7 AT Up 40.0 100.1 Up 01:55:08 - 02:25:08 3250
Madras/Culver 02:10:08 -15.8 AT Up 38.6 97.2 Up 01:55:08 - 02:25:08 3237
Sisters 02:10:08 -15.4 AT Up 38.4 96.6 Up 01:55:08 - 02:25:08 3232
Redmond 02:10:08 -15.7 AT Up 38.6 96.9 Up 01:55:08 - 02:25:08 3216
Bend 02:10:08 -15.5 AT Up 38.6 96.6 Up 01:55:08 - 02:25:08 3207
Oregon Observatory 02:10:08 -15.4 AT Up 38.5 96.4 Up 01:55:08 - 02:25:08 3201
La Pine/Gilchrist 02:10:08 -15.3 AT Up 38.5 96.2 Up 01:55:08 - 02:25:08 3191
North Lake 02:10:08 -15.6 AT Up 39.0 96.3 Up 01:55:08 - 02:25:08 3140
Chiloquin 02:10:08 -14.7 AT Up 38.3 95.0 Up 01:55:08 - 02:25:08 3136
Klamath Falls 02:10:08 -14.7 AT Up 38.4 94.8 Up 01:55:08 - 02:25:08 3113
Paisley 02:10:08 -15.7 AT Up 39.3 96.1 Up 01:55:08 - 02:25:08 3091
Tulelake 02:10:08 -14.8 AT Up 38.7 94.8 Up 01:55:08 - 02:25:08 3084
Lakeview 02:10:08 -15.7 AT Up 39.5 95.8 Up 01:55:08 - 02:25:08 3052
Cedarville 02:10:08 -15.6 AT Up 39.7 95.4 Up 01:55:08 - 02:25:08 3004
Fall River/Burney 02:10:38 -14.7 AT Up 38.9 94.2 Up 01:55:38 - 02:25:38 2982
Susanville 02:10:39 -15.0 AT Up 39.5 94.2 Up 01:55:39 - 02:25:39 2907
Greenville 02:10:41 -14.7 AT Up 39.3 93.8 Up 01:55:41 - 02:25:41 2897
Gimple 02:10:41 -14.8 AT Up 39.4 93.9 Up 01:55:41 - 02:25:41 2894
Quincy 02:10:42 -14.7 AT Up 39.3 93.7 Up 01:55:42 - 02:25:42 2882
Portola 02:10:42 -15.0 AT Up 39.7 93.9 Up 01:55:42 - 02:25:42 2854
Reno 02:10:41 -15.4 AT Up 40.2 94.1 Up 01:55:41 - 02:25:41 2809
Carson City 02:10:43 -15.3 AT Up 40.3 93.8 Up 01:55:43 - 02:25:43 2781
Gardnerville 02:10:44 -15.3 AT Up 40.3 93.6 Up 01:55:44 - 02:25:44 2760
Yerington 02:10:42 -15.7 AT Up 40.8 94.1 Up 01:55:42 - 02:25:42 2742
Hawthorne 02:10:43 -16.0 AT Up 41.2 94.0 Up 01:55:43 - 02:25:43 2685
Lee Vining 02:10:47 -15.5 AT Up 40.9 93.2 Up 01:55:47 - 02:25:47 2660
Tonopah 02:10:42 -16.9 AT Up 42.3 94.6 Up 01:55:42 - 02:25:42 2594
Bishop 02:10:48 -15.9 AT Up 41.5 93.2 Up 01:55:48 - 02:25:48 2584
Lone Pine 02:10:50 -15.9 AT Up 41.8 92.7 Up 01:55:50 - 02:25:50 2510
CPSLO 02:11:03 -13.5 AT Up 39.8 90.1 Up 01:56:03 - 02:26:03 2508
Beatty 02:10:46 -17.0 AT Up 42.8 93.8 Up 01:55:46 - 02:25:46 2484
Indian Springs 02:10:44 -17.7 AT Up 43.7 94.2 Up 01:55:44 - 02:25:44 2415
Henderson 02:10:44 -18.1 Dark Up 44.3 94.2 Up 01:55:44 - 02:25:44 2343
Wildwood 02:11:03 -14.8 AT Up 41.5 90.2 Up 01:56:03 - 02:26:03 2326
Niwot 02:09:57 -26.4 Dark Up 51.0 105.9 Up 01:54:57 - 02:24:57 2312
Searchlight/Boulder City 02:10:46 -18.0 Dark Up 44.4 93.6 Up 01:55:46 - 02:25:46 2293
Laughlin/Bullhead City 02:10:47 -18.2 Dark Up 44.7 93.6 Up 01:55:47 - 02:25:47 2255
Patrick 02:10:44 -18.8 Dark Up 45.2 94.3 Up 01:55:44 - 02:25:44 2247
Kingman/Dolan Springs 02:10:45 -18.6 Dark Up 45.1 93.9 Up 01:55:45 - 02:25:45 2236
Mohave Valley 02:10:48 -18.1 Dark Up 44.7 93.3 Up 01:55:48 - 02:25:48 2231
Idyllwild 02:10:59 -16.2 AT Up 43.0 90.9 Up 01:55:59 - 02:25:59 2219
DCO 02:10:42 -19.3 Dark Up 45.8 94.4 Up 01:55:42 - 02:25:42 2193
Lake Havasu City 02:10:49 -18.2 Dark Up 44.9 93.1 Up 01:55:49 - 02:25:49 2188
Parker 02:10:50 -18.2 Dark Up 45.0 92.7 Up 01:55:50 - 02:25:50 2156
Blythe 02:10:53 -17.8 AT Up 44.8 92.0 Up 01:55:53 - 02:25:53 2124
Calipatria 02:10:58 -16.9 AT Up 44.0 91.0 Up 01:55:58 - 02:25:58 2120
Yuma 02:10:57 -17.5 AT Up 44.8 91.1 Up 01:55:57 - 02:25:57 2046

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, (2020/01/05 02:09UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  5.90  35
Alnath         05:26:17.5 +28:36:23  1.6 11.08  49
PPM 093742     04:45:42.5 +23:37:41  6.1  2.06  38
PPM 093789     04:48:43.8 +21:18:56  7.3  0.35  39
PPM 093794     04:49:00.8 +21:47:30 11.8  0.24  39
11UQ62         04:48:10.7 +21:38:45 14.5        38
Positions are for J2000

Event circumstances last updated at 2018/06/12 19:49:17 UT

Marc W. Buie, Southwest Research Institute

RECON