RECON: TNO occultation with 03QW113

Event between 03QW113 and star UC4-440-000050 with event index number of 201108

Geocentric closest approach at 2019/07/21 11:25:43 UTC

J2000 position of star is 00:01:58.5 -02:07:24
Equinox of date position of star is 00:02:52.6 -02:01:31
Stellar brightness R=15.2, use SENSEUP=128
Star is 11 degrees from the moon. Moon is 82% illuminated.
TNO apparent brightness V=22.3

[RECON map]
TNO is 30.8 AU from the Sun and 30.3 AU from the Earth.
The TNO is moving 8.2 km/sec on the sky relative to the star, or, 1.3 arcsec/hr.
The 1-sigma error in the time of the event is 1312 seconds.
The 1-sigma cross-track error in the shadow position is 4786 km.
The sky-plane scale is 21953.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=206.1 km assuming a 5% albedo -- 25.1 sec chord
Diameter=84.1 km assuming a 30% albedo -- 10.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 03QW113, (2019/07/21 11:26UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:43.6 -29:31:05  1.2 31.46  22
Algenib        00:14:14.7 +15:17:32  2.8 17.53  27
29 Psc         00:02:49.6 -02:55:07  5.4  0.91  11
PPM 208213     00:00:49.4 -02:00:14  8.5  0.54  11
PPM 181780     00:03:17.4 -02:01:50  9.6  0.08  11
03QW113        00:02:58.6 -02:00:52 15.2        11
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 0.7 sigma about the mid-time.
The median site spacing is 73.9 km RECON observability=0.1 and success probability=3.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 11:21:13 -7.9 CT Up 38.1 166.4 Up 11:06:13 - 11:36:13 -996
Tonasket 11:21:16 -8.1 CT Up 38.3 166.4 Up 11:06:16 - 11:36:16 -1007
Okanogan 11:21:19 -8.4 CT Up 38.6 166.1 Up 11:06:19 - 11:36:19 -1018
Manson/Chelan 11:21:25 -9.0 CT Up 39.0 165.3 Up 11:06:25 - 11:36:25 -1019
Brewster 11:21:21 -8.7 CT Up 38.9 165.8 Up 11:06:21 - 11:36:21 -1024
Entiat 11:21:27 -9.2 CT Up 39.2 165.2 Up 11:06:27 - 11:36:27 -1028
Wenatchee 11:21:29 -9.4 CT Up 39.5 165.0 Up 11:06:29 - 11:36:29 -1037
Ellensburg 11:21:34 -9.8 CT Up 39.8 164.7 Up 11:06:34 - 11:36:34 -1049
Yakima 11:21:36 -10.1 CT Up 40.2 164.6 Up 11:06:36 - 11:36:36 -1069
Toppenish/White Swan 11:21:36 -10.1 CT Up 40.4 164.8 Up 11:06:36 - 11:36:36 -1087
The Dalles 11:21:48 -11.0 CT Up 41.1 163.6 Up 11:06:48 - 11:36:48 -1095
Goldendale 11:21:43 -10.7 CT Up 40.9 164.1 Up 11:06:43 - 11:36:43 -1099
Maupin 11:21:49 -11.3 CT Up 41.5 163.7 Up 11:06:49 - 11:36:49 -1122
Pasco 11:21:28 -9.6 CT Up 40.8 166.3 Up 11:06:28 - 11:36:28 -1147
Sisters 11:21:59 -12.1 AT Up 42.2 162.8 Up 11:06:59 - 11:36:59 -1148
Madras/Culver 11:21:53 -11.7 CT Up 42.0 163.5 Up 11:06:53 - 11:36:53 -1149
George/Umatilla 11:21:31 -9.9 CT Up 41.1 166.0 Up 11:06:31 - 11:36:31 -1156
Redmond 11:21:56 -12.0 CT Up 42.3 163.3 Up 11:06:56 - 11:36:56 -1167
PNWRO 11:21:28 -9.7 CT Up 41.1 166.6 Up 11:06:28 - 11:36:28 -1170
Bend 11:21:59 -12.2 AT Up 42.5 163.1 Up 11:06:59 - 11:36:59 -1172
Oregon Observatory 11:22:01 -12.4 AT Up 42.6 162.9 Up 11:07:01 - 11:37:01 -1176
La Pine/Gilchrist 11:22:03 -12.5 AT Up 42.8 162.8 Up 11:07:03 - 11:37:03 -1185
Chiloquin 11:22:12 -13.5 AT Up 43.8 162.0 Up 11:07:12 - 11:37:12 -1231
North Lake 11:22:01 -12.5 AT Up 43.4 163.5 Up 11:07:01 - 11:37:01 -1235
Klamath Falls 11:22:14 -13.7 AT Up 44.2 162.1 Up 11:07:14 - 11:37:14 -1254
Paisley 11:22:02 -12.7 AT Up 44.0 163.8 Up 11:07:02 - 11:37:02 -1282
Tulelake 11:22:14 -13.7 AT Up 44.5 162.4 Up 11:07:14 - 11:37:14 -1283
Lakeview 11:22:04 -13.0 AT Up 44.5 163.9 Up 11:07:04 - 11:37:04 -1320
Fall River/Burney 11:22:19 -14.3 AT Up 45.4 162.3 Up 11:07:19 - 11:37:19 -1340
Cedarville 11:22:07 -13.3 AT Up 45.2 164.0 Up 11:07:07 - 11:37:07 -1366
Susanville 11:22:18 -14.3 AT Up 46.2 163.1 Up 11:07:18 - 11:37:18 -1411
Greenville 11:22:21 -14.7 AT Up 46.4 162.6 Up 11:07:21 - 11:37:21 -1414
Gimple 11:22:21 -14.6 AT Up 46.4 162.7 Up 11:07:21 - 11:37:21 -1418
Quincy 11:22:23 -14.8 AT Up 46.5 162.6 Up 11:07:23 - 11:37:23 -1427
Portola 11:22:20 -14.6 AT Up 46.8 163.2 Up 11:07:20 - 11:37:20 -1456
Reno 11:22:16 -14.5 AT Up 47.2 164.0 Up 11:07:16 - 11:37:16 -1503
Carson City 11:22:18 -14.7 AT Up 47.5 163.9 Up 11:07:18 - 11:37:18 -1526
Gardnerville 11:22:20 -14.8 AT Up 47.8 163.9 Up 11:07:20 - 11:37:20 -1543
Yerington 11:22:14 -14.5 AT Up 47.8 164.8 Up 11:07:14 - 11:37:14 -1568
Hawthorne 11:22:14 -14.5 AT Up 48.4 165.4 Up 11:07:14 - 11:37:14 -1622
Lee Vining 11:22:21 -15.1 AT Up 48.8 164.6 Up 11:07:21 - 11:37:21 -1635
Bishop 11:22:19 -15.1 AT Up 49.6 165.5 Up 11:07:19 - 11:37:19 -1709
Tonopah 11:22:05 -14.0 AT Up 49.1 167.4 Up 11:07:05 - 11:37:05 -1720
CPSLO 11:22:53 -17.8 AT Up 51.1 161.5 Up 11:07:53 - 11:37:53 -1735
Lone Pine 11:22:21 -15.4 AT Up 50.4 165.8 Up 11:07:21 - 11:37:21 -1775
Beatty 11:22:08 -14.4 AT Up 50.3 167.8 Up 11:07:08 - 11:37:08 -1819
Indian Springs 11:22:01 -14.0 AT Up 50.8 169.3 Up 11:07:01 - 11:37:01 -1893
Wildwood 11:22:43 -17.3 AT Up 52.7 164.2 Up 11:07:43 - 11:37:43 -1919
Henderson 11:21:58 -13.9 AT Up 51.4 170.3 Up 11:06:58 - 11:36:58 -1964
Searchlight/Boulder City 11:22:01 -14.2 AT Up 52.0 170.3 Up 11:07:01 - 11:37:01 -2007
Idyllwild 11:22:28 -16.4 AT Up 53.4 167.1 Up 11:07:28 - 11:37:28 -2038
Laughlin/Bullhead City 11:22:00 -14.2 AT Up 52.3 170.8 Up 11:07:00 - 11:37:00 -2046
Patrick 11:21:52 -13.6 AT Up 52.2 171.9 Up 11:06:52 - 11:36:52 -2063
Mohave Valley 11:22:02 -14.4 AT Up 52.6 170.7 Up 11:07:02 - 11:37:02 -2065
Kingman/Dolan Springs 11:21:55 -13.9 AT Up 52.4 171.6 Up 11:06:55 - 11:36:55 -2070
Lake Havasu City 11:22:02 -14.4 AT Up 53.0 171.1 Up 11:07:02 - 11:37:02 -2106
DCO 11:21:47 -13.3 AT Up 52.6 173.0 Up 11:06:47 - 11:36:47 -2120
Parker 11:22:04 -14.6 AT Up 53.4 171.1 Up 11:07:04 - 11:37:04 -2133
Calipatria 11:22:21 -16.0 AT Up 54.2 168.9 Up 11:07:21 - 11:37:21 -2143
Niwot 11:20:11 -5.6 CT Up 47.7 184.9 Up 11:05:11 - 11:35:11 -2155
Blythe 11:22:10 -15.1 AT Up 53.9 170.5 Up 11:07:10 - 11:37:10 -2155
Yuma 11:22:16 -15.7 AT Up 54.8 170.2 Up 11:07:16 - 11:37:16 -2220

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 03QW113, (2019/07/21 11:26UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.5 -29:37:23  1.2 31.46  22
Algenib        00:13:14.2 +15:11:01  2.8 17.53  27
29 Psc         00:01:49.5 -03:01:39  5.4  0.91  11
PPM 208213     23:59:49.2 -02:06:46  8.5  0.54  11
PPM 181780     00:02:17.3 -02:08:22  9.6  0.08  11
03QW113        00:01:58.5 -02:07:24 15.2        11
Positions are for J2000

Event circumstances last updated at 2017/08/05 16:40:08 UT

Marc W. Buie, Southwest Research Institute

RECON