RECON: TNO occultation with 523790

Event between (523790) 15HP9 and star GA0700:07385028 with event index number of 2601337

Geocentric closest approach at 2022/04/05 10:52:36 UTC

J2000 position of star is 16:58:25.9 -19:42:55
Equinox of date position of star is 16:59:44.4 -19:44:52
Stellar brightness G=15.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 168 degrees from the moon. Moon is 17% illuminated.
TNO apparent brightness V=22.6

[RECON map]
TNO is 15.8 AU from the Sun and 15.3 AU from the Earth.
The TNO is moving 6.9 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 344 seconds.
The 1-sigma cross-track error in the shadow position is 1457 km.
The sky-plane scale is 11075.3 km/arcsec.

The TNO has an absolute magnitude Hv=10.4
Diameter=50.1 km assuming a 5% albedo -- 7.3 sec chord
Diameter=20.5 km assuming a 30% albedo -- 3.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 523790, (2022/04/05 10:53UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:46.6 -26:28:46  0.9  9.47 173
35Eta Oph      17:11:39.4 -15:45:03  2.6  4.90 164
PPM 232367     16:58:22.5 -19:34:25  6.1  0.37 168
PPM 232393     16:59:12.2 -19:49:29  8.4  0.15 168
523790         16:59:44.6 -19:44:52 15.1       167
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 2.6 sigma about the mid-time.
The median site spacing is 13.0 km RECON observability=0.8 and success probability=10.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:56:58 -14.0 AT Down 18.2 177.5 Really Low 10:41:58 - 11:11:58 2679
Kamloops 10:59:08 -21.9 Dark Down 18.1 163.7 Really Low 10:44:08 - 11:14:08 2312
Kelowna 10:59:03 -22.0 Dark Down 19.1 164.5 Really Low 10:44:03 - 11:14:03 2298
Peachland 10:59:06 -22.2 Dark Down 19.1 164.2 Really Low 10:44:06 - 11:14:06 2286
Summerland 10:59:05 -22.2 Dark Down 19.3 164.3 Really Low 10:44:05 - 11:14:05 2282
Penticton 10:59:05 -22.2 Dark Down 19.4 164.4 Really Low 10:44:05 - 11:14:05 2281
Oliver 10:59:05 -22.5 Dark Down 19.7 164.3 Really Low 10:44:05 - 11:14:05 2265
Anarchist Mountain Observatory 10:59:04 -22.5 Dark Down 19.9 164.5 Really Low 10:44:04 - 11:14:04 2263
Tonasket 10:59:04 -22.7 Dark Down 20.2 164.4 Low 10:44:04 - 11:14:04 2246
Okanogan 10:59:06 -23.0 Dark Down 20.5 164.2 Low 10:44:06 - 11:14:06 2227
Brewster 10:59:09 -23.3 Dark Down 20.7 164.0 Low 10:44:09 - 11:14:09 2209
Manson/Chelan 10:59:13 -23.6 Dark Down 20.8 163.6 Low 10:44:13 - 11:14:13 2190
Dunrhomin 10:56:35 -19.2 Dark Down 30.0 177.9 Up 10:41:35 - 11:11:35 2167
Wenatchee 10:59:14 -24.0 Dark Down 21.3 163.4 Low 10:44:14 - 11:14:14 2162
CU-SBO 10:56:36 -19.4 Dark Down 30.3 177.8 Up 10:41:36 - 11:11:36 2151
Victoria 10:59:41 -24.7 Dark Down 19.6 160.6 Really Low 10:44:41 - 11:14:41 2137
Ellensburg 10:59:18 -24.4 Dark Down 21.6 163.2 Low 10:44:18 - 11:14:18 2136
PNWRO 10:59:02 -24.2 Dark Down 22.9 164.7 Low 10:44:02 - 11:14:02 2130
Yakima 10:59:17 -24.6 Dark Down 22.0 163.1 Low 10:44:17 - 11:14:17 2116
Toppenish/White Swan 10:59:15 -24.7 Dark Down 22.3 163.3 Low 10:44:15 - 11:14:15 2109
Goldendale 10:59:21 -25.3 Dark Down 22.7 162.8 Low 10:44:21 - 11:14:21 2070
The Dalles 10:59:25 -25.6 Dark Down 22.8 162.4 Low 10:44:25 - 11:14:25 2048
Maupin 10:59:26 -25.8 Dark Down 23.3 162.5 Low 10:44:26 - 11:14:26 2029
Sisters 10:59:32 -26.7 Dark Down 24.0 161.9 Low 10:44:32 - 11:14:32 1969
Bend 10:59:29 -26.7 Dark Down 24.3 162.1 Low 10:44:29 - 11:14:29 1963
Oregon Observatory 10:59:30 -26.9 Dark Down 24.4 161.9 Low 10:44:30 - 11:14:30 1950
North Lake 10:59:26 -27.0 Dark Down 25.1 162.4 Low 10:44:26 - 11:14:26 1930
Lakeview 10:59:21 -27.4 Dark Down 26.3 162.8 Low 10:44:21 - 11:14:21 1886
Chiloquin 10:59:36 -27.9 Dark Down 25.6 161.4 Low 10:44:36 - 11:14:36 1865
Cedarville 10:59:20 -27.7 Dark Down 26.9 162.8 Low 10:44:20 - 11:14:20 1853
Klamath Falls 10:59:36 -28.1 Dark Down 25.9 161.4 Low 10:44:36 - 11:14:36 1848
Fall River/Burney 10:59:34 -28.7 Dark Down 27.1 161.6 Low 10:44:34 - 11:14:34 1790
Susanville 10:59:26 -28.6 Dark Down 27.9 162.2 Low 10:44:26 - 11:14:26 1774
Gimple 10:59:28 -28.9 Dark Down 28.1 161.9 Low 10:44:28 - 11:14:28 1751
Greenville 10:59:29 -29.0 Dark Down 28.1 161.9 Low 10:44:29 - 11:14:29 1748
Reno 10:59:18 -28.7 Dark Down 28.9 162.9 Low 10:44:18 - 11:14:18 1745
Portola 10:59:25 -28.9 Dark Down 28.5 162.3 Low 10:44:25 - 11:14:25 1743
Quincy 10:59:28 -29.1 Dark Down 28.3 161.8 Low 10:44:28 - 11:14:28 1736
Yerington 10:59:10 -28.6 Dark Down 29.6 163.5 Low 10:44:10 - 11:14:10 1730
Tonopah 10:58:49 -28.0 Dark Down 30.9 165.3 Up 10:43:49 - 11:13:49 1729
Carson City 10:59:18 -28.9 Dark Down 29.3 162.9 Low 10:44:18 - 11:14:18 1724
Hawthorne 10:59:05 -28.6 Dark Down 30.1 163.9 Up 10:44:05 - 11:14:05 1717
Gardnerville 10:59:17 -29.0 Dark Down 29.5 162.9 Low 10:44:17 - 11:14:17 1710
Indian Springs 10:58:32 -27.9 Dark Down 32.6 166.7 Up 10:43:32 - 11:13:32 1679
Beatty 10:58:44 -28.4 Dark Down 32.1 165.6 Up 10:43:44 - 11:13:44 1669
Lee Vining 10:59:11 -29.2 Dark Down 30.6 163.3 Up 10:44:11 - 11:14:11 1668
Henderson 10:58:24 -27.7 Dark Down 33.2 167.3 Up 10:43:24 - 11:13:24 1664
Patrick 10:58:10 -27.3 Dark Down 34.0 168.4 Up 10:43:10 - 11:13:10 1656
Bishop 10:59:02 -29.1 Dark Down 31.3 164.0 Up 10:44:02 - 11:14:02 1651
Kingman/Dolan Springs 10:58:13 -27.5 Dark Down 34.2 168.2 Up 10:43:13 - 11:13:13 1636
Laughlin/Bullhead City 10:58:19 -27.9 Dark Down 34.2 167.6 Up 10:43:19 - 11:13:19 1619
Mohave Valley 10:58:18 -28.0 Dark Down 34.4 167.6 Up 10:43:18 - 11:13:18 1602
George/Scottsdale 10:57:46 -26.8 Dark Down 36.0 170.3 Up 10:42:46 - 11:12:46 1601
Lake Havasu City 10:58:15 -28.1 Dark Down 34.9 167.8 Up 10:43:15 - 11:13:15 1582
Parker 10:58:15 -28.2 Dark Down 35.2 167.8 Up 10:43:15 - 11:13:15 1560
Idyllwild 10:58:43 -30.1 Dark Down 35.2 165.1 Up 10:43:43 - 11:13:43 1462
Calipatria 10:58:28 -29.6 Dark Down 36.0 166.3 Up 10:43:28 - 11:13:28 1455
Yuma 10:58:17 -29.2 Dark Down 36.6 167.2 Up 10:43:17 - 11:13:17 1452
Wildwood 10:59:05 -31.1 Dark Down 34.4 163.2 Up 10:44:05 - 11:14:05 1429

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 523790, (2022/04/05 10:53UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  9.47 173
35Eta Oph      17:10:22.7 -15:43:29  2.6  4.90 164
PPM 232367     16:57:03.9 -19:32:25  6.1  0.37 168
PPM 232393     16:57:53.4 -19:47:31  8.4  0.15 168
523790         16:58:25.9 -19:42:55 15.1       168
Positions are for J2000

Event circumstances last updated at 2022/03/15 01:00:16 UT

Marc W. Buie, Southwest Research Institute

RECON