RECON: TNO occultation with 01QX322

Event between 01QX322 and star GA1200:00297002 with event index number of 211269

Geocentric closest approach at 2019/10/02 09:49:56 UTC

J2000 position of star is 01:47:23.7 +31:44:45
Equinox of date position of star is 01:48:28.7 +31:50:22
Stellar brightness G=16.1, 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 752 seconds.
The 1-sigma cross-track error in the shadow position is 3643 km.
The sky-plane scale is 31384.7 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 09:50UT)
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 16.1       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 1.2 sigma about the mid-time.
The median site spacing is 24.8 km RECON observability=1.0 and success probability=13.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 09:48:57 -36.9 Dark Down 69.8 210.4 Up 09:33:57 - 10:03:57 -1208
Summerland 09:48:59 -37.1 Dark Down 70.0 209.6 Up 09:33:59 - 10:03:59 -1208
Penticton 09:48:58 -37.3 Dark Down 70.2 210.5 Up 09:33:58 - 10:03:58 -1244
Okanagan Falls 09:48:58 -37.5 Dark Down 70.4 210.7 Up 09:33:58 - 10:03:58 -1264
Oliver 09:48:58 -37.6 Dark Down 70.5 211.0 Up 09:33:58 - 10:03:58 -1282
Anarchist Mountain Observatory 09:48:58 -37.6 Dark Down 70.6 211.7 Up 09:33:58 - 10:03:58 -1302
Oroville 09:48:58 -37.7 Dark Down 70.7 211.6 Up 09:33:58 - 10:03:58 -1309
Tonasket 09:48:58 -37.9 Dark Down 70.9 212.0 Up 09:33:58 - 10:03:58 -1334
Okanogan 09:48:59 -38.2 Dark Down 71.2 212.2 Up 09:33:59 - 10:03:59 -1368
Brewster 09:48:59 -38.5 Dark Down 71.5 212.1 Up 09:33:59 - 10:03:59 -1394
Manson/Chelan 09:49:01 -38.8 Dark Down 71.8 211.5 Up 09:34:01 - 10:04:01 -1412
Entiat 09:49:01 -39.0 Dark Down 72.0 211.7 Up 09:34:01 - 10:04:01 -1435
Wenatchee 09:49:02 -39.3 Dark Down 72.3 211.9 Up 09:34:02 - 10:04:02 -1461
Ellensburg 09:49:02 -39.7 Dark Down 72.7 212.0 Up 09:34:02 - 10:04:02 -1502
Yakima 09:49:03 -40.0 Dark Down 73.0 212.7 Up 09:34:03 - 10:04:03 -1546
Toppenish/White Swan 09:49:02 -40.1 Dark Down 73.2 213.5 Up 09:34:02 - 10:04:02 -1571
Pasco 09:48:58 -39.6 Dark Down 72.8 217.0 Up 09:33:58 - 10:03:58 -1599
Goldendale 09:49:04 -40.7 Dark Down 73.8 213.4 Up 09:34:04 - 10:04:04 -1625
PNWRO 09:48:58 -39.7 Dark Down 72.9 218.0 Up 09:33:58 - 10:03:58 -1628
George/Umatilla 09:48:59 -40.0 Dark Down 73.1 217.1 Up 09:33:59 - 10:03:59 -1633
The Dalles 09:49:06 -41.0 Dark Down 74.1 212.9 Up 09:34:06 - 10:04:06 -1644
Maupin 09:49:05 -41.3 Dark Down 74.4 214.0 Up 09:34:05 - 10:04:05 -1690
Madras/Culver 09:49:06 -41.7 Dark Down 74.9 215.0 Up 09:34:06 - 10:04:06 -1748
Sisters 09:49:07 -42.2 Dark Down 75.3 214.4 Up 09:34:07 - 10:04:07 -1778
Redmond 09:49:06 -42.0 Dark Down 75.2 215.6 Up 09:34:06 - 10:04:06 -1786
Bend 09:49:07 -42.3 Dark Down 75.4 215.7 Up 09:34:07 - 10:04:07 -1807
Oregon Observatory 09:49:07 -42.5 Dark Down 75.6 215.7 Up 09:34:07 - 10:04:07 -1824
La Pine/Gilchrist 09:49:07 -42.6 Dark Down 75.8 216.0 Up 09:34:07 - 10:04:07 -1846
North Lake 09:49:06 -42.7 Dark Down 75.9 218.8 Up 09:34:06 - 10:04:06 -1901
Chiloquin 09:49:10 -43.7 Dark Down 76.9 217.7 Up 09:34:10 - 10:04:10 -1960
Paisley 09:49:05 -42.9 Dark Down 76.1 221.3 Up 09:34:05 - 10:04:05 -1965
Klamath Falls 09:49:10 -43.9 Dark Down 77.1 218.9 Up 09:34:10 - 10:04:10 -1999
Lakeview 09:49:05 -43.2 Dark Down 76.4 223.3 Up 09:34:05 - 10:04:05 -2023
Tulelake 09:49:07 -43.9 Dark Down 77.2 220.5 Up 09:34:07 - 10:04:07 -2033
Cedarville 09:49:05 -43.6 Dark Down 76.8 225.7 Up 09:34:05 - 10:04:05 -2096
Fall River/Burney 09:49:07 -44.6 Dark Down 77.8 223.5 Up 09:34:07 - 10:04:07 -2133
Susanville 09:49:07 -44.7 Dark Down 77.8 227.9 Up 09:34:07 - 10:04:07 -2211
Greenville 09:49:07 -45.0 Dark Down 78.2 228.0 Up 09:34:07 - 10:04:07 -2237
Gimple 09:49:07 -45.0 Dark Down 78.1 228.3 Up 09:34:07 - 10:04:07 -2238
Quincy 09:49:07 -45.2 Dark Down 78.3 228.7 Up 09:34:07 - 10:04:07 -2259
Portola 09:49:07 -45.0 Dark Down 78.1 230.6 Up 09:34:07 - 10:04:07 -2279
Reno 09:49:05 -44.8 Dark Down 77.9 233.5 Up 09:34:05 - 10:04:05 -2317
Carson City 09:49:05 -45.1 Dark Down 78.1 234.9 Up 09:34:05 - 10:04:05 -2357
Niwot 09:48:12 -35.7 Dark Down 67.5 256.3 Up 09:33:12 - 10:03:12 -2365
Gardnerville 09:49:05 -45.2 Dark Down 78.2 236.0 Up 09:34:05 - 10:04:05 -2384
Yerington 09:49:02 -44.9 Dark Down 77.8 237.3 Up 09:34:02 - 10:04:02 -2386
Hawthorne 09:49:01 -44.9 Dark Down 77.7 240.4 Up 09:34:01 - 10:04:01 -2444
Lee Vining 09:49:03 -45.6 Dark Down 78.3 241.6 Up 09:34:03 - 10:04:03 -2500
Tonopah 09:48:56 -44.4 Dark Down 76.9 245.4 Up 09:33:56 - 10:03:56 -2513
Bishop 09:49:01 -45.5 Dark Down 78.0 245.8 Up 09:34:01 - 10:04:01 -2574
Beatty 09:48:55 -44.9 Dark Down 77.0 250.9 Up 09:33:55 - 10:03:55 -2645
Lone Pine 09:49:00 -45.8 Dark Down 78.1 249.8 Up 09:34:00 - 10:04:00 -2662
Indian Springs 09:48:51 -44.4 Dark Down 76.3 253.9 Up 09:33:51 - 10:03:51 -2693
Henderson 09:48:48 -44.3 Dark Down 75.9 257.0 Up 09:33:48 - 10:03:48 -2759
CPSLO 09:49:11 -48.3 Dark Down 80.5 251.1 Up 09:34:11 - 10:04:11 -2769
Searchlight/Boulder City 09:48:49 -44.6 Dark Down 76.0 259.3 Up 09:33:49 - 10:03:49 -2823
Patrick 09:48:44 -44.0 Dark Down 75.1 260.7 Up 09:33:44 - 10:03:44 -2839
Laughlin/Bullhead City 09:48:48 -44.6 Dark Down 75.7 260.8 Up 09:33:48 - 10:03:48 -2859
Kingman/Dolan Springs 09:48:45 -44.2 Dark Down 75.3 261.3 Up 09:33:45 - 10:03:45 -2861
DCO 09:48:42 -43.7 Dark Down 74.6 262.5 Up 09:33:42 - 10:03:42 -2879
Mohave Valley 09:48:48 -44.7 Dark Down 75.8 261.9 Up 09:33:48 - 10:03:48 -2889
Wildwood 09:49:04 -47.8 Dark Down 79.1 261.0 Up 09:34:04 - 10:04:04 -2931
Lake Havasu City 09:48:47 -44.8 Dark Down 75.6 263.7 Up 09:33:47 - 10:03:47 -2936
Parker 09:48:47 -45.0 Dark Down 75.6 265.1 Up 09:33:47 - 10:03:47 -2975
Idyllwild 09:48:56 -46.8 Dark Down 77.6 264.7 Up 09:33:56 - 10:03:56 -2994
Blythe 09:48:48 -45.5 Dark Down 75.9 266.9 Up 09:33:48 - 10:03:48 -3030
Calipatria 09:48:52 -46.4 Dark Down 76.7 268.3 Up 09:33:52 - 10:03:52 -3074
Yuma 09:48:49 -46.0 Dark Down 76.0 270.6 Up 09:33:49 - 10:03:49 -3131

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 09:50UT)
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 +32:41:31  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 16.1       148
Positions are for J2000

Event circumstances last updated at 2018/11/04 22:35:05 UT

Marc W. Buie, Southwest Research Institute

RECON