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 17:32:47.3 +13:11:26
Stellar brightness G=14.6, use SENSEUP=128
Star is 40 degrees from the moon. Moon is 98% illuminated.
TNO apparent brightness V=23.3

[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 2472 km.
The sky-plane scale is 39140.9 km/arcsec.

The TNO has an absolute magnitude Hv=5.9
Diameter=403.7 km assuming a 5% albedo -- 15.9 sec chord
Diameter=164.8 km assuming a 30% albedo -- 6.5 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 +12:32:44  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 23.6 km RECON observability=1.0 and success probability=16.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 07:37:43 -16.8 AT Up 52.9 169.8 Up 07:22:43 - 07:52:43 -1194
Summerland 07:37:44 -17.0 AT Up 53.2 169.2 Up 07:22:44 - 07:52:44 -1222
Penticton 07:37:43 -17.1 AT Up 53.3 169.4 Up 07:22:43 - 07:52:43 -1227
Okanagan Falls 07:37:44 -17.3 AT Up 53.5 169.3 Up 07:22:44 - 07:52:44 -1244
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
Oroville 07:37:44 -17.7 AT Up 53.9 169.4 Up 07:22:44 - 07:52:44 -1281
Tonasket 07:37:43 -17.9 AT Up 54.1 169.4 Up 07:22:43 - 07:52:43 -1302
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
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 -1461
Yakima 07:37:48 -20.0 Dark Up 56.0 166.9 Up 07:22:48 - 07:52:48 -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 -1571
The Dalles 07:37:49 -20.9 Dark Up 56.9 165.5 Up 07:22:49 - 07:52:49 -1592
Maupin 07:37:49 -21.3 Dark Up 57.3 165.5 Up 07:22:49 - 07:52:49 -1632
Madras/Culver 07:37:50 -21.9 Dark Up 57.8 165.2 Up 07:22:50 - 07:52:50 -1684
Sisters 07:37:51 -22.2 Dark Up 58.1 164.2 Up 07:22:51 - 07:52:51 -1716
Redmond 07:37:49 -22.2 Dark Up 58.2 165.0 Up 07:22:49 - 07:52:49 -1718
Bend 07:37:50 -22.4 Dark Up 58.4 164.6 Up 07:22:50 - 07:52:50 -1738
Oregon Observatory 07:37:51 -22.6 Dark Up 58.5 164.3 Up 07:22:51 - 07:52:51 -1755
La Pine/Gilchrist 07:37:51 -22.8 Dark Up 58.7 164.1 Up 07:22:51 - 07:52:51 -1775
North Lake 07:37:49 -23.3 Dark Up 59.2 165.0 Up 07:22:49 - 07:52:49 -1816
Paisley 07:37:48 -23.9 Dark Up 59.8 165.4 Up 07:22:48 - 07:52:48 -1869
Chiloquin 07:37:52 -23.9 Dark Up 59.7 162.9 Up 07:22:52 - 07:52:52 -1883
Klamath Falls 07:37:52 -24.2 Dark Up 60.0 162.9 Up 07:22:52 - 07:52:52 -1916
Lakeview 07:37:47 -24.4 Dark Up 60.3 165.6 Up 07:22:47 - 07:52:47 -1918
Tulelake 07:37:51 -24.5 Dark Up 60.3 163.3 Up 07:22:51 - 07:52:51 -1942
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 -2031
SwRI 07:36:57 -26.2 Dark Up 62.4 196.1 Up 07:21:57 - 07:51:57 -2067
Susanville 07:37:49 -26.1 Dark Up 62.0 164.2 Up 07:22:49 - 07:52:49 -2092
Greenville 07:37:49 -26.4 Dark Up 62.2 163.4 Up 07:22:49 - 07:52:49 -2120
Gimple 07:37:50 -26.4 Dark Up 62.2 163.6 Up 07:22:50 - 07:52:50 -2120
Quincy 07:37:50 -26.6 Dark Up 62.4 163.3 Up 07:22:50 - 07:52:50 -2140
Portola 07:37:49 -26.7 Dark Up 62.6 164.2 Up 07:22:49 - 07:52:49 -2152
Reno 07:37:46 -27.0 Dark Up 63.0 165.4 Up 07:22:46 - 07:52:46 -2177
Carson City 07:37:46 -27.4 Dark Up 63.3 165.3 Up 07:22:46 - 07:52:46 -2213
Yerington 07:37:44 -27.6 Dark Up 63.7 166.5 Up 07:22:44 - 07:52:44 -2231
Gardnerville 07:37:46 -27.6 Dark Up 63.6 165.3 Up 07:22:46 - 07:52:46 -2237
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 -2334
Bishop 07:37:42 -29.3 Dark Up 65.4 167.4 Up 07:22:42 - 07:52:42 -2393
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 -2465
Lone Pine 07:37:40 -30.1 Dark Up 66.2 167.8 Up 07:22:40 - 07:52:40 -2469
Henderson 07:37:30 -30.7 Dark Up 67.1 175.1 Up 07:22:30 - 07:52:30 -2517
Searchlight/Boulder City 07:37:29 -31.3 Dark Up 67.7 175.1 Up 07:22:29 - 07:52:29 -2575
Patrick 07:37:25 -31.4 Dark Up 67.8 177.7 Up 07:22:25 - 07:52:25 -2577
Kingman/Dolan Springs 07:37:26 -31.6 Dark Up 68.0 177.2 Up 07:22:26 - 07:52:26 -2600
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 -2761
Blythe 07:37:28 -33.2 Dark Up 69.5 175.6 Up 07:22:28 - 07:52:28 -2765
Calipatria 07:37:32 -33.7 Dark Up 69.9 172.9 Up 07:22:32 - 07:52:32 -2820
Yuma 07:37:27 -34.1 Dark Up 70.5 175.2 Up 07:22:27 - 07:52:27 -2862

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 2019/08/04 22:17:09 UT

Marc W. Buie, Southwest Research Institute

RECON