RECON: TNO occultation with 05UN524

Event between 05UN524 and star GA1280:03384885 with event index number of 238240

Geocentric closest approach at 2020/01/19 12:33:42 UTC

J2000 position of star is 07:22:23.1 +39:41:53
Equinox of date position of star is 07:23:42.9 +39:39:35
Stellar brightness G=13.9, use SENSEUP=64
Star is 124 degrees from the moon. Moon is 29% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 18.8 AU from the Sun and 17.9 AU from the Earth.
The TNO is moving 22.4 km/sec on the sky relative to the star, or, 6.2 arcsec/hr.
The 1-sigma error in the time of the event is 350 seconds.
The 1-sigma cross-track error in the shadow position is 676 km.
The sky-plane scale is 12981.4 km/arcsec.

The TNO has an absolute magnitude Hv=9.2
Diameter=86.3 km assuming a 5% albedo -- 3.8 sec chord
Diameter=35.2 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 05UN524, (2020/01/19 12:34UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:32.4 +27:58:34  1.1 12.60 120
66 Aur         07:25:31.6 +40:37:55  5.2  1.03 124
PPM 072717     07:23:29.8 +39:06:16  8.2  0.56 124
PPM 072714     07:23:22.5 +39:55:13  8.8  0.27 124
PPM 072704     07:22:55.9 +39:49:06 11.1  0.23 124
05UN524        07:23:45.5 +39:39:30 13.9       124
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 2.6 sigma about the mid-time.
The median site spacing is 13.8 km RECON observability=1.0 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)
Niwot 12:30:16 -20.6 Dark Up 24.2 302.5 Low 12:15:16 - 12:45:16 7157
SwRI 12:30:16 -20.6 Dark Up 24.2 302.5 Low 12:15:16 - 12:45:16 7146
Kelowna 12:30:56 -31.0 Dark Up 37.4 289.9 Up 12:15:56 - 12:45:56 7019
Penticton 12:30:55 -31.1 Dark Up 37.4 290.1 Up 12:15:55 - 12:45:55 6989
Summerland 12:30:55 -31.2 Dark Up 37.5 289.9 Up 12:15:55 - 12:45:55 6988
Okanagan Falls 12:30:54 -31.2 Dark Up 37.3 290.2 Up 12:15:54 - 12:45:54 6977
Oliver 12:30:54 -31.2 Dark Up 37.3 290.3 Up 12:15:54 - 12:45:54 6968
Anarchist Mountain Observatory 12:30:53 -31.0 Dark Up 37.1 290.5 Up 12:15:53 - 12:45:53 6966
Oroville 12:30:53 -31.1 Dark Up 37.1 290.5 Up 12:15:53 - 12:45:53 6958
Tonasket 12:30:52 -31.1 Dark Up 37.0 290.7 Up 12:15:52 - 12:45:52 6944
Okanogan 12:30:50 -31.2 Dark Up 37.0 290.9 Up 12:15:50 - 12:45:50 6916
Brewster 12:30:49 -31.4 Dark Up 37.0 290.9 Up 12:15:49 - 12:45:49 6890
Manson/Chelan 12:30:48 -31.7 Dark Up 37.2 290.9 Up 12:15:48 - 12:45:48 6859
Entiat 12:30:47 -31.7 Dark Up 37.2 291.0 Up 12:15:47 - 12:45:47 6842
Wenatchee 12:30:47 -31.8 Dark Up 37.1 291.1 Up 12:15:47 - 12:45:47 6821
Pasco 12:30:41 -31.1 Dark Up 36.0 292.5 Up 12:15:41 - 12:45:41 6805
PNWRO 12:30:41 -30.9 Dark Up 35.7 292.8 Up 12:15:41 - 12:45:41 6801
Ellensburg 12:30:46 -32.0 Dark Up 37.1 291.3 Up 12:15:46 - 12:45:46 6783
George/Umatilla 12:30:40 -31.2 Dark Up 36.0 292.6 Up 12:15:40 - 12:45:40 6773
Yakima 12:30:44 -32.0 Dark Up 37.0 291.5 Up 12:15:44 - 12:45:44 6756
Toppenish/White Swan 12:30:43 -31.9 Dark Up 36.8 291.8 Up 12:15:43 - 12:45:43 6751
Goldendale 12:30:41 -32.3 Dark Up 36.9 291.9 Up 12:15:41 - 12:45:41 6693
The Dalles 12:30:41 -32.5 Dark Up 37.0 291.9 Up 12:15:41 - 12:45:41 6660
Maupin 12:30:39 -32.5 Dark Up 36.8 292.3 Up 12:15:39 - 12:45:39 6638
Madras/Culver 12:30:37 -32.6 Dark Up 36.6 292.6 Up 12:15:37 - 12:45:37 6599
Redmond 12:30:36 -32.6 Dark Up 36.5 292.8 Up 12:15:36 - 12:45:36 6573
Sisters 12:30:36 -32.9 Dark Up 36.8 292.6 Up 12:15:36 - 12:45:36 6554
Bend 12:30:35 -32.7 Dark Up 36.6 292.9 Up 12:15:35 - 12:45:35 6551
Oregon Observatory 12:30:34 -32.8 Dark Up 36.6 292.9 Up 12:15:34 - 12:45:34 6532
North Lake 12:30:32 -32.5 Dark Up 36.0 293.6 Up 12:15:32 - 12:45:32 6517
La Pine/Gilchrist 12:30:34 -32.9 Dark Up 36.5 293.1 Up 12:15:34 - 12:45:34 6515
Paisley 12:30:29 -32.2 Dark Up 35.5 294.2 Up 12:15:29 - 12:45:29 6498
Lakeview 12:30:27 -32.1 Dark Up 35.2 294.6 Up 12:15:27 - 12:45:27 6473
Cedarville 12:30:25 -32.0 Dark Up 34.8 295.1 Up 12:15:25 - 12:45:25 6437
Chiloquin 12:30:30 -33.2 Dark Up 36.3 293.6 Up 12:15:30 - 12:45:30 6420
Klamath Falls 12:30:29 -33.2 Dark Up 36.2 293.9 Up 12:15:29 - 12:45:29 6400
Tulelake 12:30:28 -32.9 Dark Up 35.8 294.2 Up 12:15:28 - 12:45:28 6397
DCO 12:30:00 -26.2 Dark Up 27.0 301.2 Low 12:15:00 - 12:45:00 6385
Patrick 12:30:01 -26.8 Dark Up 27.6 300.8 Low 12:15:01 - 12:45:01 6365
Tonopah 12:30:11 -29.7 Dark Up 31.2 298.3 Up 12:15:11 - 12:45:11 6358
Henderson 12:30:04 -27.7 Dark Up 28.7 300.1 Low 12:15:04 - 12:45:04 6344
Indian Springs 12:30:06 -28.3 Dark Up 29.5 299.6 Low 12:15:06 - 12:45:06 6341
Kingman/Dolan Springs 12:30:00 -26.9 Dark Up 27.6 300.9 Low 12:15:00 - 12:45:00 6338
Fall River/Burney 12:30:24 -32.9 Dark Up 35.4 294.8 Up 12:15:24 - 12:45:24 6338
Susanville 12:30:22 -32.4 Dark Up 34.6 295.6 Up 12:15:22 - 12:45:22 6333
Reno 12:30:18 -31.7 Dark Up 33.7 296.4 Up 12:15:18 - 12:45:18 6317
Yerington 12:30:16 -31.2 Dark Up 33.0 297.0 Up 12:15:16 - 12:45:16 6315
Hawthorne 12:30:14 -30.8 Dark Up 32.4 297.5 Up 12:15:14 - 12:45:14 6311
Searchlight/Boulder City 12:30:02 -27.6 Dark Up 28.4 300.4 Low 12:15:02 - 12:45:02 6307
Laughlin/Bullhead City 12:30:00 -27.3 Dark Up 28.0 300.7 Low 12:15:00 - 12:45:00 6307
Beatty 12:30:07 -29.2 Dark Up 30.4 299.1 Up 12:15:07 - 12:45:07 6302
Gimple 12:30:21 -32.5 Dark Up 34.7 295.6 Up 12:15:21 - 12:45:21 6302
Portola 12:30:19 -32.2 Dark Up 34.3 296.0 Up 12:15:19 - 12:45:19 6301
Greenville 12:30:21 -32.6 Dark Up 34.7 295.6 Up 12:15:21 - 12:45:21 6298
Carson City 12:30:17 -31.7 Dark Up 33.5 296.6 Up 12:15:17 - 12:45:17 6293
Mohave Valley 12:30:00 -27.3 Dark Up 27.9 300.8 Low 12:15:00 - 12:45:00 6288
Quincy 12:30:20 -32.6 Dark Up 34.6 295.7 Up 12:15:20 - 12:45:20 6284
Gardnerville 12:30:16 -31.7 Dark Up 33.4 296.8 Up 12:15:16 - 12:45:16 6278
Lake Havasu City 12:29:58 -27.0 Dark Up 27.5 301.1 Low 12:14:58 - 12:44:58 6274
Parker 12:29:57 -27.0 Dark Up 27.3 301.2 Low 12:14:57 - 12:44:57 6251
Lee Vining 12:30:12 -31.1 Dark Up 32.5 297.6 Up 12:15:12 - 12:45:12 6244
Bishop 12:30:10 -30.6 Dark Up 31.7 298.2 Up 12:15:10 - 12:45:10 6242
Lone Pine 12:30:07 -30.2 Dark Up 31.1 298.7 Up 12:15:07 - 12:45:07 6207
Blythe 12:29:56 -27.2 Dark Up 27.2 301.4 Low 12:14:56 - 12:44:56 6196
Yuma 12:29:53 -27.1 Dark Up 26.8 301.8 Low 12:14:53 - 12:44:53 6126
Calipatria 12:29:55 -27.9 Dark Up 27.6 301.3 Low 12:14:55 - 12:44:55 6104
Idyllwild 12:29:57 -28.9 Dark Up 28.8 300.6 Low 12:14:57 - 12:44:57 6078
Wildwood 12:30:00 -30.5 Dark Up 30.3 299.8 Up 12:15:00 - 12:45:00 5992
CPSLO 12:30:05 -32.3 Dark Up 32.4 298.5 Up 12:15:05 - 12:45:05 5962

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 05UN524, (2020/01/19 12:34UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1 12.60 120
66 Aur         07:24:08.5 +40:40:20  5.2  1.03 124
PPM 072717     07:22:07.8 +39:08:38  8.2  0.56 124
PPM 072714     07:21:59.9 +39:57:35  8.8  0.27 124
PPM 072704     07:21:33.3 +39:51:27 11.1  0.23 124
05UN524        07:22:23.1 +39:41:53 13.9       124
Positions are for J2000

Event circumstances last updated at 2019/06/01 22:10:58 UT

Marc W. Buie, Southwest Research Institute

RECON