RECON: TNO occultation with 13UG17

Event between 13UG17 and star GA0960:00130906 with event index number of 220027

Geocentric closest approach at 2019/09/16 08:57:01 UTC

J2000 position of star is 01:30:38.7 +07:16:27
Equinox of date position of star is 01:31:37.8 +07:22:14
Stellar brightness G=12.0, use SENSEUP=16
Star is 7 degrees from the moon. Moon is 96% illuminated.
TNO apparent brightness V=24.5

[RECON map]
TNO is 41.4 AU from the Sun and 40.5 AU from the Earth.
The TNO is moving 21.0 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 121 seconds.
The 1-sigma cross-track error in the shadow position is 1682 km.
The sky-plane scale is 29406.1 km/arcsec.

The TNO has an absolute magnitude Hv=8.3
Diameter=133.0 km assuming a 5% albedo -- 6.3 sec chord
Diameter=54.3 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 13UG17, (2019/09/16 08:57UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:03.2 +16:32:51  0.8 46.15  52
6Bet Ari       01:55:44.0 +20:54:13  2.6 14.73  22
PPM 144653     01:30:05.0 +07:23:43  6.4  0.40   7
PPM 144661     01:30:25.0 +07:08:34  9.5  0.39   7
PPM 144682     01:31:37.7 +07:09:54 11.0  0.21   7
13UG17         01:31:40.6 +07:22:31 12.0         7
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 16.7 km RECON observability=1.0 and success probability=19.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 08:56:18 -35.8 Dark Up 46.0 160.8 Up 08:45:42 - 09:06:54 -946
Kelowna 08:56:17 -35.6 Dark Up 46.0 161.3 Up 08:45:41 - 09:06:53 -955
Penticton 08:56:18 -36.0 Dark Up 46.3 161.0 Up 08:45:42 - 09:06:54 -974
Okanagan Falls 08:56:19 -36.2 Dark Up 46.5 160.9 Up 08:45:43 - 09:06:55 -985
Oliver 08:56:19 -36.4 Dark Up 46.7 160.9 Up 08:45:43 - 09:06:55 -997
Anarchist Mountain Observatory 08:56:19 -36.5 Dark Up 46.9 161.1 Up 08:45:43 - 09:06:55 -1015
Oroville 08:56:19 -36.6 Dark Up 46.9 160.9 Up 08:45:43 - 09:06:55 -1018
Tonasket 08:56:20 -36.8 Dark Up 47.1 160.9 Up 08:45:44 - 09:06:56 -1034
Okanogan 08:56:21 -37.1 Dark Up 47.4 160.5 Up 08:45:45 - 09:06:57 -1052
Brewster 08:56:23 -37.4 Dark Up 47.6 160.2 Up 08:45:47 - 09:06:59 -1064
Manson/Chelan 08:56:24 -37.7 Dark Up 47.8 159.6 Up 08:45:48 - 09:07:00 -1066
Entiat 08:56:25 -37.9 Dark Up 47.9 159.4 Up 08:45:49 - 09:07:01 -1079
Wenatchee 08:56:26 -38.2 Dark Up 48.2 159.1 Up 08:45:50 - 09:07:02 -1094
Ellensburg 08:56:27 -38.6 Dark Up 48.5 158.7 Up 08:45:51 - 09:07:03 -1115
Yakima 08:56:29 -39.0 Dark Up 48.9 158.5 Up 08:45:53 - 09:07:05 -1143
Toppenish/White Swan 08:56:29 -39.2 Dark Up 49.1 158.6 Up 08:45:53 - 09:07:05 -1164
Goldendale 08:56:31 -39.8 Dark Up 49.5 157.8 Up 08:45:55 - 09:07:07 -1189
The Dalles 08:56:33 -40.1 Dark Up 49.6 157.2 Up 08:45:57 - 09:07:09 -1193
Pasco 08:56:25 -39.0 Dark Up 49.5 160.4 Up 08:45:49 - 09:07:01 -1214
Maupin 08:56:34 -40.5 Dark Up 50.0 157.1 Up 08:45:58 - 09:07:10 -1226
George/Umatilla 08:56:26 -39.4 Dark Up 49.8 160.0 Up 08:45:50 - 09:07:02 -1231
PNWRO 08:56:25 -39.2 Dark Up 49.8 160.7 Up 08:45:49 - 09:07:01 -1240
Madras/Culver 08:56:35 -41.0 Dark Up 50.5 156.8 Up 08:45:59 - 09:07:11 -1264
Sisters 08:56:37 -41.4 Dark Up 50.7 156.0 Up 08:46:01 - 09:07:13 -1273
Redmond 08:56:36 -41.3 Dark Up 50.9 156.6 Up 08:46:00 - 09:07:12 -1288
Bend 08:56:37 -41.6 Dark Up 51.0 156.3 Up 08:46:01 - 09:07:13 -1299
Oregon Observatory 08:56:38 -41.8 Dark Up 51.1 156.0 Up 08:46:02 - 09:07:14 -1307
La Pine/Gilchrist 08:56:39 -42.0 Dark Up 51.3 155.8 Up 08:46:03 - 09:07:15 -1320
North Lake 08:56:38 -42.2 Dark Up 51.9 156.5 Up 08:46:02 - 09:07:14 -1373
Chiloquin 08:56:43 -43.1 Dark Up 52.2 154.7 Up 08:46:07 - 09:07:19 -1389
Klamath Falls 08:56:44 -43.4 Dark Up 52.5 154.6 Up 08:46:08 - 09:07:20 -1418
Paisley 08:56:38 -42.7 Dark Up 52.5 156.8 Up 08:46:02 - 09:07:14 -1426
Tulelake 08:56:43 -43.6 Dark Up 52.9 154.9 Up 08:46:07 - 09:07:19 -1449
Lakeview 08:56:39 -43.1 Dark Up 53.0 156.8 Up 08:46:03 - 09:07:15 -1471
Fall River/Burney 08:56:45 -44.4 Dark Up 53.7 154.6 Up 08:46:09 - 09:07:21 -1520
Cedarville 08:56:40 -43.7 Dark Up 53.7 156.7 Up 08:46:04 - 09:07:16 -1527
Susanville 08:56:45 -44.8 Dark Up 54.5 155.4 Up 08:46:09 - 09:07:21 -1595
Greenville 08:56:46 -45.2 Dark Up 54.7 154.7 Up 08:46:10 - 09:07:22 -1606
Gimple 08:56:46 -45.1 Dark Up 54.7 154.9 Up 08:46:10 - 09:07:22 -1609
Quincy 08:56:46 -45.3 Dark Up 54.9 154.6 Up 08:46:10 - 09:07:22 -1622
Portola 08:56:45 -45.3 Dark Up 55.2 155.3 Up 08:46:09 - 09:07:21 -1649
Reno 08:56:44 -45.4 Dark Up 55.6 156.2 Up 08:46:08 - 09:07:20 -1694
Carson City 08:56:45 -45.7 Dark Up 55.9 156.1 Up 08:46:09 - 09:07:21 -1723
Gardnerville 08:56:45 -45.9 Dark Up 56.2 156.0 Up 08:46:09 - 09:07:21 -1744
Yerington 08:56:43 -45.7 Dark Up 56.3 157.0 Up 08:46:07 - 09:07:19 -1762
Hawthorne 08:56:42 -46.0 Dark Up 56.9 157.6 Up 08:46:06 - 09:07:18 -1819
Lee Vining 08:56:45 -46.6 Dark Up 57.3 156.5 Up 08:46:09 - 09:07:21 -1846
Tonopah 08:56:38 -45.9 Dark Up 57.7 159.8 Up 08:46:02 - 09:07:14 -1909
Bishop 08:56:44 -46.9 Dark Up 58.0 157.4 Up 08:46:08 - 09:07:20 -1922
Lone Pine 08:56:45 -47.5 Dark Up 58.8 157.5 Up 08:46:09 - 09:07:21 -1997
CPSLO 08:56:57 -49.5 Dark Up 59.1 152.0 Up 08:46:21 - 09:07:33 -2004
Beatty 08:56:39 -46.8 Dark Up 58.9 160.0 Up 08:46:03 - 09:07:15 -2021
Indian Springs 08:56:36 -46.6 Dark Up 59.5 161.8 Up 08:46:00 - 09:07:12 -2090
Henderson 08:56:34 -46.8 Dark Up 60.2 162.9 Up 08:45:58 - 09:07:10 -2161
Niwot 08:55:50 -39.1 Dark Up 57.1 182.1 Up 08:45:14 - 09:06:26 -2173
Wildwood 08:56:52 -49.9 Dark Up 61.0 154.8 Up 08:46:16 - 09:07:28 -2186
Searchlight/Boulder City 08:56:35 -47.3 Dark Up 60.8 162.7 Up 08:45:59 - 09:07:11 -2212
Laughlin/Bullhead City 08:56:35 -47.4 Dark Up 61.1 163.2 Up 08:45:59 - 09:07:11 -2251
Patrick 08:56:32 -46.9 Dark Up 61.1 164.8 Up 08:45:56 - 09:07:08 -2257
Kingman/Dolan Springs 08:56:33 -47.2 Dark Up 61.2 164.3 Up 08:45:57 - 09:07:09 -2269
Mohave Valley 08:56:35 -47.6 Dark Up 61.4 163.1 Up 08:45:59 - 09:07:11 -2275
Idyllwild 08:56:46 -49.5 Dark Up 61.9 158.2 Up 08:46:10 - 09:07:22 -2291
DCO 08:56:30 -46.8 Dark Up 61.5 166.0 Up 08:45:54 - 09:07:06 -2311
Lake Havasu City 08:56:35 -47.9 Dark Up 61.8 163.4 Up 08:45:59 - 09:07:11 -2319
Parker 08:56:36 -48.1 Dark Up 62.2 163.3 Up 08:46:00 - 09:07:12 -2350
Blythe 08:56:38 -48.7 Dark Up 62.6 162.4 Up 08:46:02 - 09:07:14 -2384
Calipatria 08:56:43 -49.5 Dark Up 62.8 160.2 Up 08:46:07 - 09:07:19 -2390
Yuma 08:56:41 -49.5 Dark Up 63.5 161.8 Up 08:46:05 - 09:07:17 -2464

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 13UG17, (2019/09/16 08:57UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 46.15  52
6Bet Ari       01:54:38.5 +20:48:27  2.6 14.73  22
PPM 144653     01:29:03.1 +07:17:38  6.4  0.40   7
PPM 144661     01:29:23.1 +07:02:29  9.5  0.39   7
PPM 144682     01:30:35.9 +07:03:50 11.0  0.21   7
13UG17         01:30:38.7 +07:16:27 12.0         7
Positions are for J2000

Event circumstances last updated at 2018/10/24 21:56:06 UT

Marc W. Buie, Southwest Research Institute

RECON