RECON: TNO occultation with 01QX322

Event between 01QX322 and star UC4-609-004955 with event index number of 211269

Geocentric closest approach at 2019/10/02 09:47:57 UTC

J2000 position of star is 01:47:23.7 +31:44:45
Equinox of date position of star is 01:48:25.5 +31:50:06
Stellar brightness R=16.2, use SENSEUP=128
Star is 148 degrees from the moon. Moon is 18% illuminated.
TNO apparent brightness V=22.3

[RECON map]
TNO is 44.1 AU from the Sun and 43.3 AU from the Earth.
The TNO is moving 22.3 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 260 seconds.
The 1-sigma cross-track error in the shadow position is 3548 km.
The sky-plane scale is 31385.0 km/arcsec.

The TNO has an absolute magnitude Hv=5.8
Diameter=411.2 km assuming a 5% albedo -- 18.4 sec chord
Diameter=167.9 km assuming a 30% albedo -- 7.5 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 01QX322, (2019/10/02 09:48UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:03.4 +16:32:51  0.8 41.05 169
Hamal          02:08:17.5 +23:33:18  2.0  9.37 155
PPM 066632     01:49:49.8 +32:47:22  6.2  0.98 148
PPM 066569     01:44:58.2 +32:17:27  7.3  0.88 147
PPM 066597     01:47:16.8 +31:35:06  9.8  0.37 148
PPM 066601     01:47:22.1 +31:59:31 10.9  0.29 148
01QX322        01:48:31.8 +31:50:38 16.2       149
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 3.5 sigma about the mid-time.
The median site spacing is 25.3 km RECON observability=1.0 and success probability=5.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 09:46:59 -37.9 Dark Down 70.8 210.5 Up 09:31:59 - 10:01:59 -5940
Tonasket 09:47:00 -38.1 Dark Down 71.0 210.8 Up 09:32:00 - 10:02:00 -5965
Okanogan 09:47:00 -38.4 Dark Down 71.4 211.0 Up 09:32:00 - 10:02:00 -5999
Brewster 09:47:01 -38.7 Dark Down 71.7 210.9 Up 09:32:01 - 10:02:01 -6025
Manson/Chelan 09:47:03 -39.0 Dark Down 72.0 210.3 Up 09:32:03 - 10:02:03 -6043
Entiat 09:47:03 -39.2 Dark Down 72.2 210.5 Up 09:32:03 - 10:02:03 -6065
Wenatchee 09:47:04 -39.5 Dark Down 72.4 210.6 Up 09:32:04 - 10:02:04 -6091
Ellensburg 09:47:04 -39.9 Dark Down 72.9 210.7 Up 09:32:04 - 10:02:04 -6133
Yakima 09:47:05 -40.2 Dark Down 73.2 211.4 Up 09:32:05 - 10:02:05 -6176
Toppenish/White Swan 09:47:04 -40.3 Dark Down 73.3 212.2 Up 09:32:04 - 10:02:04 -6201
Pasco 09:47:00 -39.8 Dark Down 73.0 215.7 Up 09:32:00 - 10:02:00 -6230
Goldendale 09:47:06 -40.9 Dark Down 74.0 212.1 Up 09:32:06 - 10:02:06 -6255
PNWRO 09:46:59 -39.9 Dark Down 73.1 216.8 Up 09:31:59 - 10:01:59 -6259
George/Umatilla 09:47:01 -40.2 Dark Down 73.3 215.8 Up 09:32:01 - 10:02:01 -6263
The Dalles 09:47:07 -41.2 Dark Down 74.3 211.5 Up 09:32:07 - 10:02:07 -6274
Maupin 09:47:07 -41.5 Dark Down 74.6 212.6 Up 09:32:07 - 10:02:07 -6320
Madras/Culver 09:47:08 -42.0 Dark Down 75.1 213.6 Up 09:32:08 - 10:02:08 -6378
Sisters 09:47:10 -42.4 Dark Down 75.5 212.9 Up 09:32:10 - 10:02:10 -6408
Redmond 09:47:08 -42.3 Dark Down 75.4 214.2 Up 09:32:08 - 10:02:08 -6416
Bend 09:47:09 -42.5 Dark Down 75.6 214.2 Up 09:32:09 - 10:02:09 -6437
Oregon Observatory 09:47:09 -42.7 Dark Down 75.8 214.2 Up 09:32:09 - 10:02:09 -6454
La Pine/Gilchrist 09:47:10 -42.9 Dark Down 76.0 214.5 Up 09:32:10 - 10:02:10 -6475
North Lake 09:47:08 -42.9 Dark Down 76.1 217.4 Up 09:32:08 - 10:02:08 -6530
Chiloquin 09:47:11 -43.9 Dark Down 77.1 216.1 Up 09:32:11 - 10:02:11 -6590
Paisley 09:47:06 -43.2 Dark Down 76.4 219.8 Up 09:32:06 - 10:02:06 -6595
Klamath Falls 09:47:11 -44.1 Dark Down 77.3 217.3 Up 09:32:11 - 10:02:11 -6628
Lakeview 09:47:06 -43.5 Dark Down 76.7 221.8 Up 09:32:06 - 10:02:06 -6653
Tulelake 09:47:11 -44.2 Dark Down 77.4 219.0 Up 09:32:11 - 10:02:11 -6662
Cedarville 09:47:06 -43.9 Dark Down 77.1 224.2 Up 09:32:06 - 10:02:06 -6726
Fall River/Burney 09:47:11 -44.8 Dark Down 78.0 222.0 Up 09:32:11 - 10:02:11 -6761
Susanville 09:47:09 -44.9 Dark Down 78.1 226.4 Up 09:32:09 - 10:02:09 -6840
Greenville 09:47:11 -45.3 Dark Down 78.5 226.5 Up 09:32:11 - 10:02:11 -6866
Gimple 09:47:10 -45.2 Dark Down 78.4 226.7 Up 09:32:10 - 10:02:10 -6868
Quincy 09:47:11 -45.4 Dark Down 78.6 227.2 Up 09:32:11 - 10:02:11 -6888
Portola 09:47:09 -45.3 Dark Down 78.4 229.1 Up 09:32:09 - 10:02:09 -6909
Reno 09:47:06 -45.1 Dark Down 78.2 232.1 Up 09:32:06 - 10:02:06 -6947
Carson City 09:47:07 -45.3 Dark Down 78.4 233.5 Up 09:32:07 - 10:02:07 -6986
Niwot 09:46:14 -36.0 Dark Down 67.9 255.7 Up 09:31:14 - 10:01:14 -7000
Gardnerville 09:47:07 -45.5 Dark Down 78.5 234.6 Up 09:32:07 - 10:02:07 -7014
Yerington 09:47:04 -45.1 Dark Down 78.1 236.0 Up 09:32:04 - 10:02:04 -7016
Hawthorne 09:47:03 -45.2 Dark Down 78.0 239.2 Up 09:32:03 - 10:02:03 -7074
Lee Vining 09:47:05 -45.8 Dark Down 78.6 240.4 Up 09:32:05 - 10:02:05 -7130
Tonopah 09:46:59 -44.7 Dark Down 77.3 244.3 Up 09:31:59 - 10:01:59 -7143
Bishop 09:47:03 -45.8 Dark Down 78.4 244.7 Up 09:32:03 - 10:02:03 -7205
Beatty 09:46:56 -45.2 Dark Down 77.4 250.0 Up 09:31:56 - 10:01:56 -7276
Lone Pine 09:47:02 -46.1 Dark Down 78.5 248.8 Up 09:32:02 - 10:02:02 -7292
Indian Springs 09:46:53 -44.7 Dark Down 76.7 253.1 Up 09:31:53 - 10:01:53 -7324
Henderson 09:46:50 -44.6 Dark Down 76.3 256.3 Up 09:31:50 - 10:01:50 -7390
CPSLO 09:47:13 -48.5 Dark Down 80.8 250.0 Up 09:32:13 - 10:02:13 -7398
Searchlight/Boulder City 09:46:51 -44.9 Dark Down 76.4 258.7 Up 09:31:51 - 10:01:51 -7454
Patrick 09:46:47 -44.3 Dark Down 75.5 260.1 Up 09:31:47 - 10:01:47 -7471
Laughlin/Bullhead City 09:46:50 -44.9 Dark Down 76.1 260.3 Up 09:31:50 - 10:01:50 -7491
Kingman/Dolan Springs 09:46:48 -44.5 Dark Down 75.7 260.8 Up 09:31:48 - 10:01:48 -7493
DCO 09:46:45 -44.0 Dark Down 75.0 262.0 Up 09:31:45 - 10:01:45 -7511
Mohave Valley 09:46:50 -45.0 Dark Down 76.2 261.4 Up 09:31:50 - 10:01:50 -7521
Wildwood 09:47:06 -48.1 Dark Down 79.5 260.4 Up 09:32:06 - 10:02:06 -7560
Lake Havasu City 09:46:49 -45.1 Dark Down 76.0 263.2 Up 09:31:49 - 10:01:49 -7567
Parker 09:46:48 -45.3 Dark Down 76.1 264.7 Up 09:31:48 - 10:01:48 -7606
Idyllwild 09:46:58 -47.1 Dark Down 78.1 264.3 Up 09:31:58 - 10:01:58 -7624
Blythe 09:46:51 -45.8 Dark Down 76.3 266.6 Up 09:31:51 - 10:01:51 -7661
Calipatria 09:46:54 -46.7 Dark Down 77.1 268.0 Up 09:31:54 - 10:01:54 -7705
Yuma 09:46:50 -46.4 Dark Down 76.4 270.3 Up 09:31:50 - 10:01:50 -7763

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 01QX322, (2019/10/02 09:48UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 41.05 169
Hamal          02:07:10.7 +23:27:42  2.0  9.37 155
PPM 066632     01:48:41.3 +32:41:30  6.2  0.98 148
PPM 066569     01:43:50.1 +32:11:31  7.3  0.88 147
PPM 066597     01:46:08.8 +31:29:12  9.8  0.37 148
PPM 066601     01:46:13.9 +31:53:37 10.9  0.29 148
01QX322        01:47:23.7 +31:44:45 16.2       148
Positions are for J2000

Event circumstances last updated at 2017/12/06 19:20:53 UT

Marc W. Buie, Southwest Research Institute

RECON