RECON: TNO occultation with 456826

Event between (456826) 07TH422 and star GA1080:01409383 with event index number of 1000126

Geocentric closest approach at 2020/11/16 11:15:37 UTC

J2000 position of star is 05:50:41.8 +18:04:48
Equinox of date position of star is 05:51:48.2 +18:05:03
Stellar brightness G=14.7, use SENSEUP=128
Star is 164 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=22.5

[RECON map]
TNO is 29.7 AU from the Sun and 28.9 AU from the Earth.
The TNO is moving 20.1 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 320 seconds.
The 1-sigma cross-track error in the shadow position is 3824 km.
The sky-plane scale is 20944.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.7
Diameter=173.8 km assuming a 5% albedo -- 8.7 sec chord
Diameter=70.9 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 

Star training set for 456826, (2020/11/16 11:16UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:18.2 +07:24:33  0.4 10.73 158
Alhena         06:38:55.1 +16:22:47  1.9 11.35 152
PPM 121513     05:53:37.7 +19:52:17  6.4  1.83 164
PPM 121460     05:51:45.6 +18:01:51  7.7  0.07 164
456826         05:51:55.1 +18:05:04 14.7       163
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 2.8 sigma about the mid-time.
The median site spacing is 23.4 km RECON observability=1.0 and success probability=12.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 11:14:45 -37.9 Dark Down 55.2 210.3 Up 10:59:45 - 11:29:45 671
Summerland 11:14:46 -38.1 Dark Down 55.3 209.7 Up 10:59:46 - 11:29:46 663
Penticton 11:14:45 -38.1 Dark Down 55.6 210.3 Up 10:59:45 - 11:29:45 636
Okanagan Falls 11:14:45 -38.1 Dark Down 55.7 210.4 Up 10:59:45 - 11:29:45 618
Oliver 11:14:45 -38.2 Dark Down 55.9 210.5 Up 10:59:45 - 11:29:45 603
Anarchist Mountain Observatory 11:14:44 -38.1 Dark Down 55.9 211.0 Up 10:59:44 - 11:29:44 589
Oroville 11:14:44 -38.2 Dark Down 56.0 210.9 Up 10:59:44 - 11:29:44 581
Tonasket 11:14:44 -38.2 Dark Down 56.2 211.1 Up 10:59:44 - 11:29:44 560
Okanogan 11:14:44 -38.4 Dark Down 56.6 211.1 Up 10:59:44 - 11:29:44 527
Brewster 11:14:44 -38.6 Dark Down 56.9 211.0 Up 10:59:44 - 11:29:44 499
Manson/Chelan 11:14:45 -38.9 Dark Down 57.2 210.6 Up 10:59:45 - 11:29:45 476
Entiat 11:14:45 -39.0 Dark Down 57.4 210.6 Up 10:59:45 - 11:29:45 454
Wenatchee 11:14:45 -39.1 Dark Down 57.6 210.6 Up 10:59:45 - 11:29:45 429
Ellensburg 11:14:45 -39.4 Dark Down 58.1 210.6 Up 10:59:45 - 11:29:45 388
Yakima 11:14:44 -39.5 Dark Down 58.4 210.9 Up 10:59:44 - 11:29:44 349
Pasco 11:14:39 -38.7 Dark Down 58.2 213.6 Up 10:59:39 - 11:29:39 332
Toppenish/White Swan 11:14:44 -39.5 Dark Down 58.6 211.4 Up 10:59:44 - 11:29:44 330
PNWRO 11:14:38 -38.6 Dark Down 58.3 214.2 Up 10:59:38 - 11:29:38 311
George/Umatilla 11:14:39 -38.9 Dark Down 58.6 213.5 Up 10:59:39 - 11:29:39 298
Goldendale 11:14:45 -39.9 Dark Down 59.2 211.1 Up 10:59:45 - 11:29:45 273
The Dalles 11:14:45 -40.2 Dark Down 59.5 210.7 Up 10:59:45 - 11:29:45 247
Maupin 11:14:45 -40.2 Dark Down 59.8 211.3 Up 10:59:45 - 11:29:45 208
Madras/Culver 11:14:44 -40.4 Dark Down 60.3 211.7 Up 10:59:44 - 11:29:44 154
Redmond 11:14:44 -40.5 Dark Down 60.6 211.9 Up 10:59:44 - 11:29:44 119
Sisters 11:14:45 -40.8 Dark Down 60.8 211.2 Up 10:59:45 - 11:29:45 117
Bend 11:14:44 -40.7 Dark Down 60.9 211.9 Up 10:59:44 - 11:29:44 96
Oregon Observatory 11:14:44 -40.8 Dark Down 61.1 211.8 Up 10:59:44 - 11:29:44 78
La Pine/Gilchrist 11:14:44 -40.9 Dark Down 61.3 211.9 Up 10:59:44 - 11:29:44 57
North Lake 11:14:41 -40.6 Dark Down 61.4 213.4 Up 10:59:41 - 11:29:41 21
Paisley 11:14:39 -40.4 Dark Down 61.7 214.6 Up 10:59:39 - 11:29:39 -30
Chiloquin 11:14:44 -41.4 Dark Down 62.3 212.3 Up 10:59:44 - 11:29:44 -56
Niwot 11:13:38 -29.4 Dark Down 55.0 240.2 Up 10:58:38 - 11:28:38 -66
Lakeview 11:14:38 -40.4 Dark Down 62.0 215.5 Up 10:59:38 - 11:29:38 -78
Klamath Falls 11:14:44 -41.4 Dark Down 62.6 212.8 Up 10:59:44 - 11:29:44 -89
Tulelake 11:14:42 -41.3 Dark Down 62.7 213.7 Up 10:59:42 - 11:29:42 -113
Cedarville 11:14:36 -40.4 Dark Down 62.5 216.5 Up 10:59:36 - 11:29:36 -141
Fall River/Burney 11:14:41 -41.4 Dark Down 63.4 214.8 Up 10:59:41 - 11:29:41 -203
Susanville 11:14:37 -41.0 Dark Down 63.6 216.9 Up 10:59:37 - 11:29:37 -258
Gimple 11:14:37 -41.2 Dark Down 63.9 216.9 Up 10:59:37 - 11:29:37 -289
Greenville 11:14:38 -41.2 Dark Down 64.0 216.7 Up 10:59:38 - 11:29:38 -289
Quincy 11:14:38 -41.3 Dark Down 64.1 217.0 Up 10:59:38 - 11:29:38 -310
Portola 11:14:35 -40.9 Dark Down 64.0 218.0 Up 10:59:35 - 11:29:35 -317
Reno 11:14:33 -40.5 Dark Down 63.9 219.6 Up 10:59:33 - 11:29:33 -336
Carson City 11:14:32 -40.5 Dark Down 64.2 220.1 Up 10:59:32 - 11:29:32 -373
Yerington 11:14:29 -40.1 Dark Down 64.0 221.5 Up 10:59:29 - 11:29:29 -385
Gardnerville 11:14:31 -40.5 Dark Down 64.3 220.5 Up 10:59:31 - 11:29:31 -397
Hawthorne 11:14:26 -39.7 Dark Down 64.1 223.1 Up 10:59:26 - 11:29:26 -425
Tonopah 11:14:20 -38.7 Dark Down 63.6 226.2 Up 10:59:20 - 11:29:20 -455
Lee Vining 11:14:28 -40.2 Dark Down 64.8 223.0 Up 10:59:28 - 11:29:28 -489
Bishop 11:14:24 -39.7 Dark Down 64.8 225.2 Up 10:59:24 - 11:29:24 -541
Beatty 11:14:17 -38.5 Dark Down 64.2 228.7 Up 10:59:17 - 11:29:17 -567
Indian Springs 11:14:12 -37.6 Dark Down 63.7 230.9 Up 10:59:12 - 11:29:12 -586
Lone Pine 11:14:22 -39.5 Dark Down 65.1 226.9 Up 10:59:22 - 11:29:22 -615
Henderson 11:14:08 -37.1 Dark Down 63.6 232.9 Up 10:59:08 - 11:29:08 -631
Patrick 11:14:03 -36.2 Dark Down 63.3 235.6 Up 10:59:03 - 11:29:03 -679
Searchlight/Boulder City 11:14:07 -37.1 Dark Down 63.9 233.9 Up 10:59:07 - 11:29:07 -689
DCO 11:13:59 -35.7 Dark Down 63.0 237.1 Up 10:58:59 - 11:28:59 -700
Kingman/Dolan Springs 11:14:03 -36.4 Dark Down 63.5 235.7 Up 10:59:03 - 11:29:03 -704
Laughlin/Bullhead City 11:14:05 -36.8 Dark Down 63.9 234.9 Up 10:59:05 - 11:29:05 -714
Mohave Valley 11:14:05 -36.8 Dark Down 64.0 235.4 Up 10:59:05 - 11:29:05 -743
Lake Havasu City 11:14:03 -36.6 Dark Down 64.1 236.4 Up 10:59:03 - 11:29:03 -780
CPSLO 11:14:31 -41.7 Dark Down 67.5 224.2 Up 10:59:31 - 11:29:31 -782
Parker 11:14:03 -36.6 Dark Down 64.3 237.1 Up 10:59:03 - 11:29:03 -816
Blythe 11:14:04 -36.9 Dark Down 64.8 237.6 Up 10:59:04 - 11:29:04 -876
Wildwood 11:14:21 -40.1 Dark Down 67.1 230.2 Up 10:59:21 - 11:29:21 -883
Idyllwild 11:14:12 -38.6 Dark Down 66.1 234.1 Up 10:59:12 - 11:29:12 -894
Calipatria 11:14:07 -37.7 Dark Down 65.7 237.0 Up 10:59:07 - 11:29:07 -941
Yuma 11:14:02 -36.9 Dark Down 65.3 239.2 Up 10:59:02 - 11:29:02 -973

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 456826, (2020/11/16 11:16UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 10.73 158
Alhena         06:37:42.8 +16:23:57  1.9 11.35 152
PPM 121513     05:52:23.4 +19:52:04  6.4  1.83 164
PPM 121460     05:50:32.3 +18:01:35  7.7  0.07 164
456826         05:50:41.8 +18:04:48 14.7       164
Positions are for J2000

Event circumstances last updated at 2018/12/03 22:16:00 UT

Marc W. Buie, Southwest Research Institute

RECON