RECON: TNO occultation with 03QX90

Event between 03QX90 and star GA0760:24279566 with event index number of 1031743

Geocentric closest approach at 2019/11/07 03:41:54 UTC

J2000 position of star is 22:24:18.4 -13:25:44
Equinox of date position of star is 22:25:19.5 -13:19:54
Stellar brightness G=10.6, use SENSEUP=4
Star is 11 degrees from the moon. Moon is 75% illuminated.
TNO apparent brightness V=23.2

[RECON map]
TNO is 44.8 AU from the Sun and 44.4 AU from the Earth.
The TNO is moving 5.1 km/sec on the sky relative to the star, or, 0.6 arcsec/hr.
The 1-sigma error in the time of the event is 1291 seconds.
The 1-sigma cross-track error in the shadow position is 5043 km.
The sky-plane scale is 32219.2 km/arcsec.

The TNO has an absolute magnitude Hv=6.6
Diameter=285.8 km assuming a 5% albedo -- 56.0 sec chord
Diameter=116.7 km assuming a 30% albedo -- 22.9 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 03QX90, (2019/11/07 03:42UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:44.6 -29:31:00  1.2 17.94  19
50 Aqr         22:25:30.7 -13:25:42  5.8  0.11  11
PPM 240227     22:25:47.6 -12:51:24  8.0  0.48  11
50 Aqr         22:25:30.7 -13:25:42  5.8  0.11  11
03QX90         22:25:22.0 -13:19:40 10.6        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 13.4 km RECON observability=1.0 and success probability=6.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 03:39:40 -31.3 Dark Up 26.5 186.0 Low 03:24:40 - 03:54:40 -1186
Summerland 03:39:47 -31.0 Dark Up 26.6 185.6 Low 03:24:47 - 03:54:47 -1186
Penticton 03:39:45 -31.2 Dark Up 26.9 185.8 Low 03:24:45 - 03:54:45 -1203
Okanagan Falls 03:39:43 -31.3 Dark Up 27.0 185.8 Low 03:24:43 - 03:54:43 -1213
Oliver 03:39:43 -31.3 Dark Up 27.2 185.9 Low 03:24:43 - 03:54:43 -1221
Anarchist Mountain Observatory 03:39:40 -31.5 Dark Up 27.4 186.1 Low 03:24:40 - 03:54:40 -1231
Oroville 03:39:40 -31.4 Dark Up 27.4 186.0 Low 03:24:40 - 03:54:40 -1235
Tonasket 03:39:42 -31.5 Dark Up 27.7 186.0 Low 03:24:42 - 03:54:42 -1247
Okanogan 03:39:42 -31.4 Dark Up 28.0 185.9 Low 03:24:42 - 03:54:42 -1264
Brewster 03:39:44 -31.4 Dark Up 28.3 185.7 Low 03:24:44 - 03:54:44 -1277
Manson/Chelan 03:39:50 -31.2 Dark Up 28.5 185.3 Low 03:24:50 - 03:54:50 -1287
Entiat 03:39:51 -31.2 Dark Up 28.8 185.2 Low 03:24:51 - 03:54:51 -1298
Wenatchee 03:39:51 -31.2 Dark Up 29.0 185.1 Low 03:24:51 - 03:54:51 -1312
Ellensburg 03:39:55 -31.1 Dark Up 29.4 184.9 Low 03:24:55 - 03:54:55 -1333
Yakima 03:39:55 -31.2 Dark Up 29.9 184.9 Low 03:24:55 - 03:54:55 -1356
Toppenish/White Swan 03:39:52 -31.3 Dark Up 30.1 185.1 Up 03:24:52 - 03:54:52 -1369
Pasco 03:39:33 -32.1 Dark Up 30.1 186.5 Up 03:24:33 - 03:54:33 -1382
PNWRO 03:39:31 -32.3 Dark Up 30.3 186.7 Up 03:24:31 - 03:54:31 -1398
Goldendale 03:39:57 -31.1 Dark Up 30.6 184.7 Up 03:24:57 - 03:54:57 -1398
George/Umatilla 03:39:37 -32.0 Dark Up 30.4 186.3 Up 03:24:37 - 03:54:37 -1400
The Dalles 03:40:04 -30.9 Dark Up 30.9 184.3 Up 03:25:04 - 03:55:04 -1409
Maupin 03:40:01 -31.0 Dark Up 31.3 184.4 Up 03:25:01 - 03:55:01 -1434
Madras/Culver 03:40:03 -31.1 Dark Up 31.8 184.4 Up 03:25:03 - 03:55:03 -1466
Sisters 03:40:09 -30.8 Dark Up 32.2 184.0 Up 03:25:09 - 03:55:09 -1484
Redmond 03:40:03 -31.1 Dark Up 32.2 184.4 Up 03:25:03 - 03:55:03 -1487
Bend 03:40:04 -31.0 Dark Up 32.4 184.2 Up 03:25:04 - 03:55:04 -1499
Oregon Observatory 03:40:06 -31.0 Dark Up 32.6 184.1 Up 03:25:06 - 03:55:06 -1509
La Pine/Gilchrist 03:40:06 -30.9 Dark Up 32.8 184.1 Up 03:25:06 - 03:55:06 -1521
North Lake 03:39:58 -31.4 Dark Up 33.2 184.7 Up 03:24:58 - 03:54:58 -1551
Paisley 03:39:52 -31.7 Dark Up 33.7 185.2 Up 03:24:52 - 03:54:52 -1587
Chiloquin 03:40:13 -30.8 Dark Up 33.9 183.7 Up 03:25:13 - 03:55:13 -1588
Klamath Falls 03:40:11 -30.9 Dark Up 34.3 183.8 Up 03:25:11 - 03:55:11 -1610
Lakeview 03:39:49 -31.9 Dark Up 34.2 185.4 Up 03:24:49 - 03:54:49 -1619
Tulelake 03:40:06 -31.2 Dark Up 34.5 184.2 Up 03:25:06 - 03:55:06 -1628
Cedarville 03:39:46 -32.1 Dark Up 34.9 185.6 Up 03:24:46 - 03:54:46 -1662
Fall River/Burney 03:40:04 -31.3 Dark Up 35.4 184.3 Up 03:25:04 - 03:55:04 -1687
Susanville 03:39:53 -31.9 Dark Up 36.0 185.2 Up 03:24:53 - 03:54:53 -1732
Greenville 03:39:57 -31.7 Dark Up 36.3 184.9 Up 03:24:57 - 03:54:57 -1749
Gimple 03:39:57 -31.8 Dark Up 36.3 185.0 Up 03:24:57 - 03:54:57 -1749
Quincy 03:39:58 -31.7 Dark Up 36.5 184.9 Up 03:24:58 - 03:54:58 -1762
Portola 03:39:50 -32.1 Dark Up 36.6 185.4 Up 03:24:50 - 03:54:50 -1773
Reno 03:39:40 -32.6 Dark Up 36.8 186.2 Up 03:24:40 - 03:54:40 -1795
Carson City 03:39:39 -32.6 Dark Up 37.2 186.2 Up 03:24:39 - 03:54:39 -1819
Gardnerville 03:39:40 -32.7 Dark Up 37.4 186.3 Up 03:24:40 - 03:54:40 -1836
Yerington 03:39:29 -33.1 Dark Up 37.3 187.0 Up 03:24:29 - 03:54:29 -1836
Niwot 03:35:55 -42.8 Dark Up 33.7 202.1 Up 03:20:55 - 03:50:55 -1871
Hawthorne 03:39:21 -33.5 Dark Up 37.7 187.6 Up 03:24:21 - 03:54:21 -1871
SwRI 03:35:57 -42.8 Dark Up 33.8 202.1 Up 03:20:57 - 03:50:57 -1877
Lee Vining 03:39:27 -33.2 Dark Up 38.3 187.1 Up 03:24:27 - 03:54:27 -1907
Tonopah 03:38:57 -34.6 Dark Up 38.0 189.3 Up 03:23:57 - 03:53:57 -1913
Bishop 03:39:15 -33.8 Dark Up 38.9 188.0 Up 03:24:15 - 03:54:15 -1954
Beatty 03:38:48 -35.1 Dark Up 39.1 190.0 Up 03:23:48 - 03:53:48 -1997
Lone Pine 03:39:10 -34.1 Dark Up 39.6 188.5 Up 03:24:10 - 03:54:10 -2010
Indian Springs 03:38:30 -35.9 Dark Up 39.3 191.3 Up 03:23:30 - 03:53:30 -2028
Henderson 03:38:20 -36.5 Dark Up 39.7 192.2 Up 03:23:20 - 03:53:20 -2072
CPSLO 03:39:52 -32.3 Dark Up 41.1 185.5 Up 03:24:52 - 03:54:52 -2088
Searchlight/Boulder City 03:38:17 -36.6 Dark Up 40.3 192.3 Up 03:23:17 - 03:53:17 -2115
Patrick 03:38:00 -37.4 Dark Up 40.1 193.6 Up 03:23:00 - 03:53:00 -2127
Laughlin/Bullhead City 03:38:12 -36.9 Dark Up 40.5 192.8 Up 03:23:12 - 03:53:12 -2139
Kingman/Dolan Springs 03:38:01 -37.3 Dark Up 40.4 193.4 Up 03:23:01 - 03:53:01 -2142
DCO 03:37:48 -38.0 Dark Up 40.3 194.4 Up 03:22:48 - 03:52:48 -2155
Mohave Valley 03:38:12 -36.9 Dark Up 40.8 192.8 Up 03:23:12 - 03:53:12 -2160
Wildwood 03:39:18 -33.9 Dark Up 42.1 188.2 Up 03:24:18 - 03:54:18 -2191
Lake Havasu City 03:38:06 -37.1 Dark Up 41.1 193.2 Up 03:23:06 - 03:53:06 -2192
Parker 03:38:05 -37.2 Dark Up 41.4 193.3 Up 03:23:05 - 03:53:05 -2218
Idyllwild 03:38:45 -35.4 Dark Up 42.2 190.5 Up 03:23:45 - 03:53:45 -2231
Blythe 03:38:09 -37.0 Dark Up 42.0 193.1 Up 03:23:09 - 03:53:09 -2256
Calipatria 03:38:24 -36.3 Dark Up 42.6 192.0 Up 03:23:24 - 03:53:24 -2286
Yuma 03:38:10 -37.0 Dark Up 42.9 193.2 Up 03:23:10 - 03:53:10 -2327

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 03QX90, (2019/11/07 03:42UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.5 -29:37:23  1.2 17.94  19
50 Aqr         22:24:27.1 -13:31:46  5.8  0.11  11
PPM 240227     22:24:44.2 -12:57:28  8.0  0.48  11
50 Aqr         22:24:27.1 -13:31:46  5.8  0.11  11
03QX90         22:24:18.4 -13:25:44 10.6        11
Positions are for J2000

Event circumstances last updated at 2019/01/29 21:44:20 UT

Marc W. Buie, Southwest Research Institute

RECON