RECON: TNO occultation with 03UN292

Event between 03UN292 and star GA1120:00953880 with event index number of 231517

Geocentric closest approach at 2019/12/18 10:40:31 UTC

J2000 position of star is 05:05:45.0 +23:35:30
Equinox of date position of star is 05:06:53.6 +23:36:58
Stellar brightness G=16.2, use SENSEUP=128
Star is 89 degrees from the moon. Moon is 59% illuminated.
TNO apparent brightness V=23.4

[RECON map]
TNO is 40.3 AU from the Sun and 39.3 AU from the Earth.
The TNO is moving 25.0 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 850 seconds.
The 1-sigma cross-track error in the shadow position is 4463 km.
The sky-plane scale is 28496.3 km/arcsec.

The TNO has an absolute magnitude Hv=7.4
Diameter=196.8 km assuming a 5% albedo -- 7.9 sec chord
Diameter=80.3 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 03UN292, (2019/12/18 10:41UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:04.1 +16:32:52  0.8  9.96  97
Alnath         05:27:33.3 +28:37:21  1.6  6.81  83
PPM 094053     05:06:50.1 +23:05:13  6.5  0.53  89
PPM 094048     05:06:24.8 +23:49:30  8.3  0.24  89
03UN292        05:06:57.7 +23:37:03 16.2        88
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 1.1 sigma about the mid-time.
The median site spacing is 22.0 km RECON observability=1.0 and success probability=6.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 10:38:11 -48.5 Dark Up 43.0 255.1 Up 10:23:11 - 10:53:11 6347
Summerland 10:38:12 -48.8 Dark Up 43.2 254.8 Up 10:23:12 - 10:53:12 6337
Penticton 10:38:11 -48.8 Dark Up 43.2 255.3 Up 10:23:11 - 10:53:11 6310
Okanagan Falls 10:38:10 -48.9 Dark Up 43.2 255.4 Up 10:23:10 - 10:53:10 6292
Oliver 10:38:10 -48.9 Dark Up 43.3 255.6 Up 10:23:10 - 10:53:10 6277
Anarchist Mountain Observatory 10:38:10 -48.9 Dark Up 43.2 255.9 Up 10:23:10 - 10:53:10 6264
Oroville 10:38:09 -49.0 Dark Up 43.3 255.9 Up 10:23:09 - 10:53:09 6256
Tonasket 10:38:09 -49.1 Dark Up 43.3 256.1 Up 10:23:09 - 10:53:09 6234
Okanogan 10:38:09 -49.3 Dark Up 43.5 256.3 Up 10:23:09 - 10:53:09 6199
Brewster 10:38:08 -49.5 Dark Up 43.7 256.4 Up 10:23:08 - 10:53:08 6170
Manson/Chelan 10:38:09 -49.8 Dark Up 44.0 256.2 Up 10:23:09 - 10:53:09 6143
Entiat 10:38:08 -49.9 Dark Up 44.1 256.4 Up 10:23:08 - 10:53:08 6121
Wenatchee 10:38:08 -50.1 Dark Up 44.2 256.5 Up 10:23:08 - 10:53:08 6095
Ellensburg 10:38:07 -50.4 Dark Up 44.4 256.7 Up 10:23:07 - 10:53:07 6051
Yakima 10:38:06 -50.6 Dark Up 44.6 257.1 Up 10:23:06 - 10:53:06 6012
Pasco 10:38:02 -49.8 Dark Up 43.7 258.6 Up 10:23:02 - 10:53:02 6006
Toppenish/White Swan 10:38:06 -50.5 Dark Up 44.5 257.4 Up 10:23:06 - 10:53:06 5994
PNWRO 10:38:02 -49.7 Dark Up 43.6 259.1 Up 10:23:02 - 10:53:02 5987
George/Umatilla 10:38:02 -50.0 Dark Up 43.9 258.8 Up 10:23:02 - 10:53:02 5970
Goldendale 10:38:05 -51.0 Dark Up 44.9 257.6 Up 10:23:05 - 10:53:05 5932
The Dalles 10:38:06 -51.3 Dark Up 45.2 257.5 Up 10:23:06 - 10:53:06 5904
Maupin 10:38:05 -51.4 Dark Up 45.2 258.0 Up 10:23:05 - 10:53:05 5865
Madras/Culver 10:38:04 -51.7 Dark Up 45.4 258.5 Up 10:23:04 - 10:53:04 5810
Redmond 10:38:04 -51.8 Dark Up 45.5 258.8 Up 10:23:04 - 10:53:04 5774
Sisters 10:38:05 -52.1 Dark Up 45.7 258.5 Up 10:23:05 - 10:53:05 5769
Bend 10:38:03 -52.0 Dark Up 45.6 258.9 Up 10:23:03 - 10:53:03 5750
Niwot 10:37:24 -41.1 Dark Up 34.0 273.6 Up 10:22:24 - 10:52:24 5736
Oregon Observatory 10:38:03 -52.1 Dark Up 45.7 259.0 Up 10:23:03 - 10:53:03 5731
La Pine/Gilchrist 10:38:02 -52.2 Dark Up 45.8 259.1 Up 10:23:02 - 10:53:02 5709
North Lake 10:38:01 -52.0 Dark Up 45.5 260.1 Up 10:23:01 - 10:53:01 5678
Paisley 10:37:59 -51.9 Dark Up 45.3 260.9 Up 10:22:59 - 10:52:59 5630
Chiloquin 10:38:02 -52.9 Dark Up 46.3 260.0 Up 10:23:02 - 10:53:02 5592
Lakeview 10:37:58 -51.9 Dark Up 45.2 261.6 Up 10:22:58 - 10:52:58 5583
Klamath Falls 10:38:01 -52.9 Dark Up 46.3 260.4 Up 10:23:01 - 10:53:01 5559
Tulelake 10:37:59 -52.8 Dark Up 46.1 260.9 Up 10:22:59 - 10:52:59 5538
Cedarville 10:37:55 -52.0 Dark Up 45.2 262.3 Up 10:22:55 - 10:52:55 5521
Fall River/Burney 10:37:58 -53.0 Dark Up 46.2 261.9 Up 10:22:58 - 10:52:58 5448
Susanville 10:37:55 -52.6 Dark Up 45.7 263.1 Up 10:22:55 - 10:52:55 5399
Gimple 10:37:55 -52.9 Dark Up 45.9 263.2 Up 10:22:55 - 10:52:55 5367
Greenville 10:37:55 -52.9 Dark Up 46.0 263.2 Up 10:22:55 - 10:52:55 5365
Quincy 10:37:55 -53.0 Dark Up 46.0 263.4 Up 10:22:55 - 10:52:55 5345
Portola 10:37:54 -52.6 Dark Up 45.6 263.8 Up 10:22:54 - 10:52:54 5341
Reno 10:37:51 -52.2 Dark Up 45.2 264.6 Up 10:22:51 - 10:52:51 5328
Carson City 10:37:51 -52.3 Dark Up 45.2 264.9 Up 10:22:51 - 10:52:51 5292
Yerington 10:37:49 -51.9 Dark Up 44.7 265.6 Up 10:22:49 - 10:52:49 5286
Gardnerville 10:37:50 -52.3 Dark Up 45.2 265.2 Up 10:22:50 - 10:52:50 5268
Hawthorne 10:37:47 -51.6 Dark Up 44.4 266.4 Up 10:22:47 - 10:52:47 5250
Tonopah 10:37:43 -50.5 Dark Up 43.3 267.8 Up 10:22:43 - 10:52:43 5233
Lee Vining 10:37:47 -52.0 Dark Up 44.8 266.6 Up 10:22:47 - 10:52:47 5181
Bishop 10:37:44 -51.6 Dark Up 44.2 267.7 Up 10:22:44 - 10:52:44 5136
Beatty 10:37:40 -50.4 Dark Up 43.0 269.1 Up 10:22:40 - 10:52:40 5126
Indian Springs 10:37:37 -49.6 Dark Up 42.1 270.1 Up 10:22:37 - 10:52:37 5118
Henderson 10:37:34 -49.1 Dark Up 41.6 270.9 Up 10:22:34 - 10:52:34 5080
Lone Pine 10:37:42 -51.4 Dark Up 44.0 268.6 Up 10:22:42 - 10:52:42 5066
Patrick 10:37:31 -48.2 Dark Up 40.6 272.1 Up 10:22:31 - 10:52:31 5043
DCO 10:37:29 -47.7 Dark Up 40.1 272.8 Up 10:22:29 - 10:52:29 5030
Searchlight/Boulder City 10:37:33 -49.1 Dark Up 41.5 271.5 Up 10:22:33 - 10:52:33 5023
Kingman/Dolan Springs 10:37:30 -48.4 Dark Up 40.8 272.2 Up 10:22:30 - 10:52:30 5016
Laughlin/Bullhead City 10:37:32 -48.8 Dark Up 41.2 271.9 Up 10:22:32 - 10:52:32 5001
Mohave Valley 10:37:31 -48.8 Dark Up 41.2 272.2 Up 10:22:31 - 10:52:31 4973
Lake Havasu City 10:37:30 -48.6 Dark Up 41.0 272.7 Up 10:22:30 - 10:52:30 4938
Parker 10:37:29 -48.6 Dark Up 40.9 273.0 Up 10:22:29 - 10:52:29 4903
CPSLO 10:37:46 -53.7 Dark Up 46.1 268.3 Up 10:22:46 - 10:52:46 4874
Blythe 10:37:29 -48.9 Dark Up 41.2 273.3 Up 10:22:29 - 10:52:29 4841
Idyllwild 10:37:34 -50.6 Dark Up 42.9 272.1 Up 10:22:34 - 10:52:34 4801
Wildwood 10:37:40 -52.2 Dark Up 44.5 270.7 Up 10:22:40 - 10:52:40 4794
Calipatria 10:37:31 -49.7 Dark Up 41.9 273.2 Up 10:22:31 - 10:52:31 4767
Yuma 10:37:28 -49.0 Dark Up 41.1 274.1 Up 10:22:28 - 10:52:28 4745

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 03UN292, (2019/12/18 10:41UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  9.96  97
Alnath         05:26:17.5 +28:36:23  1.6  6.81  83
PPM 094053     05:05:37.7 +23:03:40  6.5  0.53  89
PPM 094048     05:05:12.0 +23:47:56  8.3  0.24  89
03UN292        05:05:45.0 +23:35:30 16.2        89
Positions are for J2000

Event circumstances last updated at 2018/10/25 20:41:14 UT

Marc W. Buie, Southwest Research Institute

RECON