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 09:55:18 UTC

J2000 position of star is 01:47:23.7 +31:44:45
Equinox of date position of star is 01:48:29.5 +31:50:26
Stellar brightness G=16.1, use SENSEUP=128
Star is 148 degrees from the moon. Moon is 18% illuminated.
TNO apparent brightness V=22.5

[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 363 seconds.
The 1-sigma cross-track error in the shadow position is 3118 km.
The sky-plane scale is 31385.4 km/arcsec.

The TNO has an absolute magnitude Hv=6.0
Diameter=380.2 km assuming a 5% albedo -- 17.0 sec chord
Diameter=155.2 km assuming a 30% albedo -- 7.0 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 01QX322, (2019/10/02 09:55UT)
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       148
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 2.5 sigma about the mid-time.
The median site spacing is 25.1 km RECON observability=1.0 and success probability=13.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 09:54:15 -36.4 Dark Down 69.4 213.3 Up 09:39:15 - 10:09:15 4099
Summerland 09:54:16 -36.6 Dark Down 69.5 212.6 Up 09:39:16 - 10:09:16 4098
Penticton 09:54:16 -36.7 Dark Down 69.7 213.5 Up 09:39:16 - 10:09:16 4062
Okanagan Falls 09:54:16 -36.9 Dark Down 69.9 213.7 Up 09:39:16 - 10:09:16 4042
Oliver 09:54:16 -37.0 Dark Down 70.0 214.0 Up 09:39:16 - 10:09:16 4025
Anarchist Mountain Observatory 09:54:15 -37.1 Dark Down 70.1 214.7 Up 09:39:15 - 10:09:15 4004
Oroville 09:54:16 -37.1 Dark Down 70.2 214.7 Up 09:39:16 - 10:09:16 3997
Tonasket 09:54:15 -37.3 Dark Down 70.4 215.1 Up 09:39:15 - 10:09:15 3972
Okanogan 09:54:16 -37.6 Dark Down 70.7 215.3 Up 09:39:16 - 10:09:16 3938
Brewster 09:54:17 -37.9 Dark Down 71.0 215.3 Up 09:39:17 - 10:09:17 3911
Manson/Chelan 09:54:18 -38.2 Dark Down 71.3 214.8 Up 09:39:18 - 10:09:18 3893
Entiat 09:54:18 -38.4 Dark Down 71.5 215.0 Up 09:39:18 - 10:09:18 3870
Wenatchee 09:54:19 -38.7 Dark Down 71.8 215.2 Up 09:39:19 - 10:09:19 3844
Ellensburg 09:54:20 -39.1 Dark Down 72.2 215.4 Up 09:39:20 - 10:09:20 3803
Yakima 09:54:20 -39.4 Dark Down 72.5 216.1 Up 09:39:20 - 10:09:20 3759
Toppenish/White Swan 09:54:20 -39.5 Dark Down 72.6 216.9 Up 09:39:20 - 10:09:20 3734
Pasco 09:54:15 -39.0 Dark Down 72.2 220.2 Up 09:39:15 - 10:09:15 3707
Goldendale 09:54:22 -40.1 Dark Down 73.2 216.9 Up 09:39:22 - 10:09:22 3680
PNWRO 09:54:15 -39.1 Dark Down 72.3 221.2 Up 09:39:15 - 10:09:15 3678
George/Umatilla 09:54:17 -39.3 Dark Down 72.5 220.4 Up 09:39:17 - 10:09:17 3673
The Dalles 09:54:23 -40.4 Dark Down 73.6 216.5 Up 09:39:23 - 10:09:23 3660
Maupin 09:54:23 -40.7 Dark Down 73.9 217.6 Up 09:39:23 - 10:09:23 3614
Madras/Culver 09:54:23 -41.1 Dark Down 74.3 218.7 Up 09:39:23 - 10:09:23 3555
Sisters 09:54:25 -41.6 Dark Down 74.8 218.2 Up 09:39:25 - 10:09:25 3525
Redmond 09:54:24 -41.4 Dark Down 74.6 219.4 Up 09:39:24 - 10:09:24 3517
Bend 09:54:25 -41.6 Dark Down 74.8 219.5 Up 09:39:25 - 10:09:25 3496
Oregon Observatory 09:54:25 -41.8 Dark Down 75.0 219.5 Up 09:39:25 - 10:09:25 3479
La Pine/Gilchrist 09:54:25 -42.0 Dark Down 75.2 219.9 Up 09:39:25 - 10:09:25 3457
North Lake 09:54:23 -42.0 Dark Down 75.3 222.6 Up 09:39:23 - 10:09:23 3403
Chiloquin 09:54:27 -43.0 Dark Down 76.2 221.7 Up 09:39:27 - 10:09:27 3342
Paisley 09:54:23 -42.3 Dark Down 75.5 225.0 Up 09:39:23 - 10:09:23 3339
Klamath Falls 09:54:27 -43.2 Dark Down 76.4 222.9 Up 09:39:27 - 10:09:27 3304
Lakeview 09:54:22 -42.5 Dark Down 75.7 226.9 Up 09:39:22 - 10:09:22 3281
Tulelake 09:54:26 -43.3 Dark Down 76.5 224.5 Up 09:39:26 - 10:09:26 3270
Cedarville 09:54:22 -42.9 Dark Down 76.1 229.4 Up 09:39:22 - 10:09:22 3207
Fall River/Burney 09:54:27 -43.9 Dark Down 77.1 227.6 Up 09:39:27 - 10:09:27 3171
Susanville 09:54:24 -44.0 Dark Down 77.1 231.7 Up 09:39:24 - 10:09:24 3092
Greenville 09:54:26 -44.3 Dark Down 77.4 231.9 Up 09:39:26 - 10:09:26 3066
Gimple 09:54:25 -44.3 Dark Down 77.4 232.1 Up 09:39:25 - 10:09:25 3064
Quincy 09:54:25 -44.5 Dark Down 77.5 232.6 Up 09:39:25 - 10:09:25 3044
Portola 09:54:24 -44.3 Dark Down 77.3 234.3 Up 09:39:24 - 10:09:24 3024
Reno 09:54:22 -44.1 Dark Down 77.0 236.9 Up 09:39:22 - 10:09:22 2986
Niwot 09:53:28 -34.9 Dark Down 66.6 257.7 Up 09:38:28 - 10:08:28 2955
Carson City 09:54:22 -44.3 Dark Down 77.2 238.3 Up 09:39:22 - 10:09:22 2947
Gardnerville 09:54:22 -44.5 Dark Down 77.3 239.3 Up 09:39:22 - 10:09:22 2920
Yerington 09:54:20 -44.1 Dark Down 76.9 240.5 Up 09:39:20 - 10:09:20 2918
Hawthorne 09:54:18 -44.1 Dark Down 76.8 243.4 Up 09:39:18 - 10:09:18 2861
Lee Vining 09:54:20 -44.8 Dark Down 77.4 244.6 Up 09:39:20 - 10:09:20 2804
Tonopah 09:54:13 -43.6 Dark Down 76.0 247.9 Up 09:39:13 - 10:09:13 2794
Bishop 09:54:18 -44.8 Dark Down 77.1 248.4 Up 09:39:18 - 10:09:18 2730
Beatty 09:54:11 -44.1 Dark Down 76.0 253.0 Up 09:39:11 - 10:09:11 2662
Lone Pine 09:54:17 -45.0 Dark Down 77.1 252.2 Up 09:39:17 - 10:09:17 2643
Indian Springs 09:54:07 -43.6 Dark Down 75.3 255.8 Up 09:39:07 - 10:09:07 2615
Henderson 09:54:05 -43.4 Dark Down 74.9 258.6 Up 09:39:05 - 10:09:05 2550
CPSLO 09:54:28 -47.5 Dark Down 79.4 253.7 Up 09:39:28 - 10:09:28 2533
Searchlight/Boulder City 09:54:05 -43.7 Dark Down 74.9 260.8 Up 09:39:05 - 10:09:05 2486
Patrick 09:54:02 -43.1 Dark Down 74.1 262.0 Up 09:39:02 - 10:09:02 2471
Laughlin/Bullhead City 09:54:04 -43.7 Dark Down 74.7 262.2 Up 09:39:04 - 10:09:04 2450
Kingman/Dolan Springs 09:54:02 -43.3 Dark Down 74.3 262.6 Up 09:39:02 - 10:09:02 2448
DCO 09:53:58 -42.8 Dark Down 73.6 263.7 Up 09:38:58 - 10:08:58 2432
Mohave Valley 09:54:04 -43.8 Dark Down 74.7 263.2 Up 09:39:04 - 10:09:04 2420
Wildwood 09:54:20 -46.9 Dark Down 78.1 262.5 Up 09:39:20 - 10:09:20 2373
Lake Havasu City 09:54:03 -43.9 Dark Down 74.5 264.9 Up 09:39:03 - 10:09:03 2373
Parker 09:54:04 -44.1 Dark Down 74.6 266.1 Up 09:39:04 - 10:09:04 2334
Idyllwild 09:54:13 -45.9 Dark Down 76.6 265.9 Up 09:39:13 - 10:09:13 2312
Blythe 09:54:05 -44.6 Dark Down 74.8 267.8 Up 09:39:05 - 10:09:05 2279
Calipatria 09:54:09 -45.5 Dark Down 75.6 269.1 Up 09:39:09 - 10:09:09 2233
Yuma 09:54:05 -45.1 Dark Down 74.9 271.2 Up 09:39:05 - 10:09:05 2177

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 09:55UT)
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 2019/01/28 21:49:22 UT

Marc W. Buie, Southwest Research Institute

RECON