RECON: TNO occultation with 07LF38

Event between 07LF38 and star GA1020:04624378 with event index number of 2024289

Geocentric closest approach at 2022/06/13 07:37:18 UTC

J2000 position of star is 17:31:53.2 +13:12:14
Equinox of date position of star is 17:32:54.5 +13:11:20
Stellar brightness G=14.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 40 degrees from the moon. Moon is 98% illuminated.
TNO apparent brightness V=23.2

[RECON map]
TNO is 54.8 AU from the Sun and 54.0 AU from the Earth.
The TNO is moving 25.1 km/sec on the sky relative to the star, or, 2.3 arcsec/hr.
The 1-sigma error in the time of the event is 335 seconds.
The 1-sigma cross-track error in the shadow position is 2469 km.
The sky-plane scale is 39140.9 km/arcsec.

The TNO has an absolute magnitude Hv=5.8
Diameter=407.4 km assuming a 5% albedo -- 16.2 sec chord
Diameter=166.3 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 07LF38, (2022/06/13 07:37UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:41.9 +38:48:20  0.0 29.35  70
Rasalhague     17:35:58.6 +12:32:43  2.1  0.98  40
PPM 133514     17:33:17.6 +11:54:55  6.4  1.28  39
PPM 133552     17:35:24.0 +13:08:49  7.2  0.61  41
PPM 133490     17:32:14.5 +13:05:23  8.6  0.19  40
07LF38         17:32:55.2 +13:11:20 14.6        41
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 2.7 sigma about the mid-time.
The median site spacing is 25.3 km RECON observability=1.0 and success probability=16.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 07:37:07 -14.3 AT Up 50.7 190.8 Up 07:22:07 - 07:52:07 -959
Kamloops 07:37:46 -15.9 AT Up 52.1 168.4 Up 07:22:46 - 07:52:46 -1132
Kelowna 07:37:44 -16.8 AT Up 53.0 169.6 Up 07:22:44 - 07:52:44 -1203
Peachland 07:37:45 -16.9 AT Up 53.0 169.1 Up 07:22:45 - 07:52:45 -1213
Summerland 07:37:45 -17.0 AT Up 53.2 169.2 Up 07:22:45 - 07:52:45 -1226
Penticton 07:37:44 -17.1 AT Up 53.3 169.4 Up 07:22:44 - 07:52:44 -1232
Oliver 07:37:44 -17.5 AT Up 53.6 169.3 Up 07:22:44 - 07:52:44 -1264
Anarchist Mountain Observatory 07:37:44 -17.6 AT Up 53.8 169.6 Up 07:22:44 - 07:52:44 -1279
Tonasket 07:37:44 -17.9 AT Up 54.1 169.4 Up 07:22:44 - 07:52:44 -1307
Victoria 07:37:56 -17.8 AT Up 53.7 162.9 Up 07:22:56 - 07:52:56 -1329
Okanogan 07:37:45 -18.3 Dark Up 54.4 169.1 Up 07:22:45 - 07:52:45 -1338
Brewster 07:37:45 -18.5 Dark Up 54.7 168.6 Up 07:22:45 - 07:52:45 -1363
Manson/Chelan 07:37:47 -18.7 Dark Up 54.8 168.0 Up 07:22:47 - 07:52:47 -1383
Wenatchee 07:37:47 -19.2 Dark Up 55.3 167.6 Up 07:22:47 - 07:52:47 -1427
Ellensburg 07:37:48 -19.6 Dark Up 55.6 167.1 Up 07:22:48 - 07:52:48 -1465
Yakima 07:37:48 -20.0 Dark Up 56.0 166.9 Up 07:22:48 - 07:52:48 -1503
Toppenish/White Swan 07:37:48 -20.2 Dark Up 56.3 167.1 Up 07:22:48 - 07:52:48 -1523
PNWRO 07:37:43 -20.7 Dark Up 56.8 169.6 Up 07:22:43 - 07:52:43 -1555
Goldendale 07:37:49 -20.7 Dark Up 56.7 166.2 Up 07:22:49 - 07:52:49 -1575
The Dalles 07:37:50 -20.9 Dark Up 56.9 165.5 Up 07:22:50 - 07:52:50 -1597
Maupin 07:37:50 -21.3 Dark Up 57.3 165.5 Up 07:22:50 - 07:52:50 -1636
Sisters 07:37:52 -22.2 Dark Up 58.1 164.3 Up 07:22:52 - 07:52:52 -1720
Bend 07:37:51 -22.4 Dark Up 58.4 164.6 Up 07:22:51 - 07:52:51 -1743
Oregon Observatory 07:37:51 -22.6 Dark Up 58.5 164.3 Up 07:22:51 - 07:52:51 -1759
North Lake 07:37:49 -23.3 Dark Up 59.2 165.0 Up 07:22:49 - 07:52:49 -1820
Chiloquin 07:37:53 -23.9 Dark Up 59.7 162.9 Up 07:22:53 - 07:52:53 -1887
Klamath Falls 07:37:53 -24.2 Dark Up 60.0 162.9 Up 07:22:53 - 07:52:53 -1920
Lakeview 07:37:48 -24.4 Dark Up 60.3 165.6 Up 07:22:48 - 07:52:48 -1922
Cedarville 07:37:48 -25.0 Dark Up 61.0 165.6 Up 07:22:48 - 07:52:48 -1986
Fall River/Burney 07:37:52 -25.4 Dark Up 61.2 163.0 Up 07:22:52 - 07:52:52 -2035
Dunrhomin 07:36:58 -26.0 Dark Up 62.1 196.2 Up 07:21:58 - 07:51:58 -2046
CU-SBO 07:36:58 -26.2 Dark Up 62.4 196.1 Up 07:21:58 - 07:51:58 -2071
Susanville 07:37:50 -26.1 Dark Up 62.0 164.2 Up 07:22:50 - 07:52:50 -2096
Greenville 07:37:51 -26.4 Dark Up 62.2 163.4 Up 07:22:51 - 07:52:51 -2124
Gimple 07:37:51 -26.4 Dark Up 62.2 163.6 Up 07:22:51 - 07:52:51 -2124
Quincy 07:37:51 -26.6 Dark Up 62.4 163.3 Up 07:22:51 - 07:52:51 -2144
Portola 07:37:49 -26.7 Dark Up 62.6 164.2 Up 07:22:49 - 07:52:49 -2156
Reno 07:37:47 -27.0 Dark Up 63.0 165.4 Up 07:22:47 - 07:52:47 -2181
Carson City 07:37:47 -27.4 Dark Up 63.3 165.3 Up 07:22:47 - 07:52:47 -2217
Yerington 07:37:45 -27.6 Dark Up 63.7 166.5 Up 07:22:45 - 07:52:45 -2235
Gardnerville 07:37:47 -27.6 Dark Up 63.6 165.3 Up 07:22:47 - 07:52:47 -2241
Hawthorne 07:37:43 -28.1 Dark Up 64.2 167.5 Up 07:22:43 - 07:52:43 -2280
Tonopah 07:37:38 -28.7 Dark Up 64.9 170.4 Up 07:22:38 - 07:52:38 -2323
Lee Vining 07:37:45 -28.7 Dark Up 64.7 166.1 Up 07:22:45 - 07:52:45 -2338
Bishop 07:37:42 -29.3 Dark Up 65.4 167.4 Up 07:22:42 - 07:52:42 -2397
Beatty 07:37:37 -29.8 Dark Up 66.1 171.0 Up 07:22:37 - 07:52:37 -2440
Indian Springs 07:37:33 -30.2 Dark Up 66.5 173.5 Up 07:22:33 - 07:52:33 -2469
Henderson 07:37:30 -30.7 Dark Up 67.1 175.1 Up 07:22:30 - 07:52:30 -2521
Patrick 07:37:26 -31.4 Dark Up 67.8 177.8 Up 07:22:26 - 07:52:26 -2581
Kingman/Dolan Springs 07:37:27 -31.6 Dark Up 68.0 177.2 Up 07:22:27 - 07:52:27 -2605
Laughlin/Bullhead City 07:37:28 -31.6 Dark Up 68.0 175.9 Up 07:22:28 - 07:52:28 -2609
Mohave Valley 07:37:28 -31.9 Dark Up 68.3 175.9 Up 07:22:28 - 07:52:28 -2637
Lake Havasu City 07:37:28 -32.3 Dark Up 68.7 176.5 Up 07:22:28 - 07:52:28 -2678
Parker 07:37:28 -32.6 Dark Up 69.0 176.5 Up 07:22:28 - 07:52:28 -2714
Wildwood 07:37:43 -32.6 Dark Up 68.5 165.1 Up 07:22:43 - 07:52:43 -2734
George/Scottsdale 07:37:19 -33.0 Dark Up 69.5 183.1 Up 07:22:19 - 07:52:19 -2747
Idyllwild 07:37:36 -33.0 Dark Up 69.2 169.9 Up 07:22:36 - 07:52:36 -2765
Calipatria 07:37:33 -33.7 Dark Up 69.9 172.9 Up 07:22:33 - 07:52:33 -2825
Yuma 07:37:29 -34.1 Dark Up 70.5 175.3 Up 07:22:29 - 07:52:29 -2866

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 07LF38, (2022/06/13 07:37UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 29.35  70
Rasalhague     17:34:56.3 +12:33:31  2.1  0.98  40
PPM 133514     17:32:14.8 +11:55:48  6.4  1.28  39
PPM 133552     17:34:22.0 +13:09:38  7.2  0.61  41
PPM 133490     17:31:12.4 +13:06:18  8.6  0.19  40
07LF38         17:31:53.2 +13:12:14 14.6        40
Positions are for J2000

Event circumstances last updated at 2022/03/14 01:03:38 UT

Marc W. Buie, Southwest Research Institute

RECON