RECON: TNO occultation with 07LF38

Event between 07LF38 and star GA1020:04624378 with event index number of 1122898

Geocentric closest approach at 2022/06/13 07:37:16 UTC

J2000 position of star is 17:31:53.2 +13:12:14
Equinox of date position of star is 17:32:49.0 +13:11:25
Stellar brightness G=14.6, use SENSEUP=128
Star is 40 degrees from the moon. Moon is 98% illuminated.
TNO apparent brightness V=27.4

[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 2471 km.
The sky-plane scale is 39140.9 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=400.0 km assuming a 5% albedo -- 2.4 sec chord
Diameter=163.3 km assuming a 30% albedo -- 1.0 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 22.5 km RECON observability=1.0 and success probability=16.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 07:37:43 -16.4 AT Up 52.6 170.0 Up 07:22:43 - 07:52:43 -1163
Kelowna 07:37:43 -16.8 AT Up 53.0 169.6 Up 07:22:43 - 07:52:43 -1198
Peachland 07:37:44 -16.9 AT Up 53.0 169.1 Up 07:22:44 - 07:52:44 -1208
Summerland 07:37:44 -17.0 AT Up 53.2 169.2 Up 07:22:44 - 07:52:44 -1221
Penticton 07:37:44 -17.1 AT Up 53.3 169.4 Up 07:22:44 - 07:52:44 -1227
Oliver 07:37:44 -17.5 AT Up 53.6 169.3 Up 07:22:44 - 07:52:44 -1259
Anarchist Mountain Observatory 07:37:43 -17.6 AT Up 53.8 169.6 Up 07:22:43 - 07:52:43 -1274
Tonasket 07:37:44 -17.9 AT Up 54.1 169.4 Up 07:22:44 - 07:52:44 -1302
Victoria 07:37:55 -17.8 AT Up 53.7 162.9 Up 07:22:55 - 07:52:55 -1324
Okanogan 07:37:44 -18.3 Dark Up 54.4 169.0 Up 07:22:44 - 07:52:44 -1333
Brewster 07:37:44 -18.5 Dark Up 54.7 168.6 Up 07:22:44 - 07:52:44 -1358
Manson/Chelan 07:37:46 -18.7 Dark Up 54.8 168.0 Up 07:22:46 - 07:52:46 -1378
Entiat 07:37:46 -18.9 Dark Up 55.0 167.8 Up 07:22:46 - 07:52:46 -1398
Wenatchee 07:37:46 -19.2 Dark Up 55.3 167.5 Up 07:22:46 - 07:52:46 -1422
Ellensburg 07:37:47 -19.6 Dark Up 55.6 167.0 Up 07:22:47 - 07:52:47 -1460
Yakima 07:37:47 -20.0 Dark Up 56.0 166.9 Up 07:22:47 - 07:52:47 -1498
Toppenish/White Swan 07:37:47 -20.2 Dark Up 56.3 167.1 Up 07:22:47 - 07:52:47 -1518
Pasco 07:37:43 -20.4 Dark Up 56.6 169.3 Up 07:22:43 - 07:52:43 -1527
PNWRO 07:37:42 -20.7 Dark Up 56.8 169.6 Up 07:22:42 - 07:52:42 -1550
Goldendale 07:37:48 -20.7 Dark Up 56.7 166.2 Up 07:22:48 - 07:52:48 -1570
The Dalles 07:37:50 -20.9 Dark Up 56.9 165.5 Up 07:22:50 - 07:52:50 -1592
Maupin 07:37:49 -21.3 Dark Up 57.3 165.5 Up 07:22:49 - 07:52:49 -1631
Sisters 07:37:51 -22.2 Dark Up 58.1 164.2 Up 07:22:51 - 07:52:51 -1716
Redmond 07:37:50 -22.2 Dark Up 58.2 165.0 Up 07:22:50 - 07:52:50 -1717
Bend 07:37:50 -22.4 Dark Up 58.4 164.6 Up 07:22:50 - 07:52:50 -1738
Oregon Observatory 07:37:50 -22.6 Dark Up 58.5 164.3 Up 07:22:50 - 07:52:50 -1755
La Pine/Gilchrist 07:37:51 -22.8 Dark Up 58.7 164.1 Up 07:22:51 - 07:52:51 -1774
North Lake 07:37:49 -23.3 Dark Up 59.2 165.0 Up 07:22:49 - 07:52:49 -1815
Paisley 07:37:48 -23.9 Dark Up 59.8 165.4 Up 07:22:48 - 07:52:48 -1868
Klamath Falls 07:37:52 -24.2 Dark Up 60.0 162.9 Up 07:22:52 - 07:52:52 -1915
Lakeview 07:37:48 -24.4 Dark Up 60.3 165.6 Up 07:22:48 - 07:52:48 -1917
Cedarville 07:37:47 -25.0 Dark Up 61.0 165.6 Up 07:22:47 - 07:52:47 -1981
Fall River/Burney 07:37:51 -25.4 Dark Up 61.2 163.0 Up 07:22:51 - 07:52:51 -2030
Niwot 07:36:57 -26.1 Dark Up 62.3 196.3 Up 07:21:57 - 07:51:57 -2055
SwRI 07:36:57 -26.2 Dark Up 62.4 196.1 Up 07:21:57 - 07:51:57 -2066
Susanville 07:37:49 -26.1 Dark Up 62.0 164.2 Up 07:22:49 - 07:52:49 -2091
Greenville 07:37:50 -26.4 Dark Up 62.2 163.4 Up 07:22:50 - 07:52:50 -2119
Gimple 07:37:50 -26.4 Dark Up 62.2 163.6 Up 07:22:50 - 07:52:50 -2119
Quincy 07:37:50 -26.6 Dark Up 62.4 163.3 Up 07:22:50 - 07:52:50 -2139
Portola 07:37:48 -26.7 Dark Up 62.6 164.2 Up 07:22:48 - 07:52:48 -2151
Reno 07:37:46 -27.0 Dark Up 63.0 165.4 Up 07:22:46 - 07:52:46 -2176
Carson City 07:37:46 -27.4 Dark Up 63.3 165.3 Up 07:22:46 - 07:52:46 -2212
Yerington 07:37:44 -27.6 Dark Up 63.7 166.5 Up 07:22:44 - 07:52:44 -2230
Gardnerville 07:37:46 -27.6 Dark Up 63.6 165.3 Up 07:22:46 - 07:52:46 -2236
Hawthorne 07:37:42 -28.1 Dark Up 64.2 167.5 Up 07:22:42 - 07:52:42 -2276
Tonopah 07:37:38 -28.7 Dark Up 64.9 170.4 Up 07:22:38 - 07:52:38 -2319
Lee Vining 07:37:44 -28.7 Dark Up 64.7 166.1 Up 07:22:44 - 07:52:44 -2333
Bishop 07:37:42 -29.3 Dark Up 65.4 167.4 Up 07:22:42 - 07:52:42 -2392
Beatty 07:37:36 -29.8 Dark Up 66.1 171.0 Up 07:22:36 - 07:52:36 -2435
Indian Springs 07:37:32 -30.2 Dark Up 66.5 173.5 Up 07:22:32 - 07:52:32 -2464
Henderson 07:37:29 -30.7 Dark Up 67.1 175.0 Up 07:22:29 - 07:52:29 -2517
Searchlight/Boulder City 07:37:29 -31.3 Dark Up 67.7 175.1 Up 07:22:29 - 07:52:29 -2575
Patrick 07:37:26 -31.4 Dark Up 67.8 177.7 Up 07:22:26 - 07:52:26 -2576
Kingman/Dolan Springs 07:37:26 -31.6 Dark Up 68.0 177.2 Up 07:22:26 - 07:52:26 -2600
DCO 07:37:23 -31.7 Dark Up 68.1 179.5 Up 07:22:23 - 07:52:23 -2604
Laughlin/Bullhead City 07:37:28 -31.6 Dark Up 68.0 175.9 Up 07:22:28 - 07:52:28 -2605
CPSLO 07:37:50 -31.2 Dark Up 66.9 160.9 Up 07:22:50 - 07:52:50 -2608
Mohave Valley 07:37:28 -31.9 Dark Up 68.3 175.9 Up 07:22:28 - 07:52:28 -2633
Lake Havasu City 07:37:27 -32.3 Dark Up 68.7 176.5 Up 07:22:27 - 07:52:27 -2673
Parker 07:37:27 -32.6 Dark Up 69.0 176.5 Up 07:22:27 - 07:52:27 -2709
Wildwood 07:37:42 -32.6 Dark Up 68.5 165.1 Up 07:22:42 - 07:52:42 -2729
George/Scottsdale 07:37:18 -33.0 Dark Up 69.5 183.1 Up 07:22:18 - 07:52:18 -2742
Idyllwild 07:37:36 -33.0 Dark Up 69.2 169.9 Up 07:22:36 - 07:52:36 -2760
Blythe 07:37:28 -33.2 Dark Up 69.5 175.6 Up 07:22:28 - 07:52:28 -2765
Calipatria 07:37:31 -33.7 Dark Up 69.9 172.9 Up 07:22:31 - 07:52:31 -2820
Yuma 07:37:27 -34.1 Dark Up 70.5 175.2 Up 07:22:27 - 07:52:27 -2861

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     17:34:56.2 +12:33:32  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 2020/03/13 22:23:05 UT

Marc W. Buie, Southwest Research Institute

RECON