RECON: TNO occultation with 12GT41

Event between 12GT41 and star GA0880:06323407 with event index number of 1583379

Geocentric closest approach at 2022/09/23 04:00:57 UTC

J2000 position of star is 17:51:32.7 -00:15:51
Equinox of date position of star is 17:52:33.0 -00:16:05
Stellar brightness G=14.9, use SENSEUP=128
Star is 115 degrees from the moon. Moon is 8% illuminated.
TNO apparent brightness V=22.2

[RECON map]
TNO is 16.8 AU from the Sun and 16.8 AU from the Earth.
The TNO is moving 17.2 km/sec on the sky relative to the star, or, 5.1 arcsec/hr.
The 1-sigma error in the time of the event is 105 seconds.
The 1-sigma cross-track error in the shadow position is 2102 km.
The sky-plane scale is 12199.4 km/arcsec.

The TNO has an absolute magnitude Hv=9.6
Diameter=73.1 km assuming a 5% albedo -- 4.3 sec chord
Diameter=29.8 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 12GT41, (2022/09/23 04:01UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:48.3 -26:28:50  0.9 32.80 102
60Bet Oph      17:44:35.8 +04:33:34  2.8  5.24 111
PPM 180184     17:53:10.0 -01:14:27  6.3  0.98 115
PPM 180176     17:51:19.5 -00:41:03  8.4  0.54 115
PPM 180182     17:52:34.4 -00:33:05  9.2  0.28 115
12GT41         17:52:42.7 -00:16:07 14.9       115
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 5.0 sigma about the mid-time.
The median site spacing is 3.8 km RECON observability=1.0 and success probability=10.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
SwRI 03:59:33 -33.8 Dark Down 30.2 240.4 Up 03:50:19 - 04:08:47 2238
George/Scottsdale 03:59:57 -32.4 Dark Down 37.8 238.3 Up 03:50:43 - 04:09:11 1841
Patrick 03:59:42 -30.1 Dark Down 38.3 235.3 Up 03:50:28 - 04:08:56 1748
Kingman/Dolan Springs 03:59:43 -30.1 Dark Down 38.6 235.3 Up 03:50:29 - 04:08:57 1733
Lake Havasu City 03:59:47 -30.2 Dark Down 39.1 235.5 Up 03:50:33 - 04:09:01 1707
Parker 03:59:49 -30.3 Dark Down 39.3 235.8 Up 03:50:35 - 04:09:03 1704
Laughlin/Bullhead City 03:59:42 -29.7 Dark Down 38.9 234.8 Up 03:50:28 - 04:08:56 1702
Mohave Valley 03:59:44 -29.8 Dark Down 39.1 235.0 Up 03:50:30 - 04:08:58 1698
Henderson 03:59:36 -29.0 Dark Down 38.7 233.8 Up 03:50:22 - 04:08:50 1690
Searchlight/Boulder City 03:59:40 -29.3 Dark Down 39.0 234.2 Up 03:50:26 - 04:08:54 1686
Blythe 03:59:51 -30.3 Dark Down 39.8 235.9 Up 03:50:37 - 04:09:05 1677
Yuma 03:59:56 -30.6 Dark Down 40.3 236.5 Up 03:50:42 - 04:09:10 1659
Indian Springs 03:59:31 -28.3 Dark Down 38.9 232.8 Up 03:50:17 - 04:08:45 1656
Calipatria 03:59:51 -29.8 Dark Down 40.7 235.3 Up 03:50:37 - 04:09:05 1611
Beatty 03:59:27 -27.3 Dark Down 39.4 231.4 Up 03:50:13 - 04:08:41 1596
Tonopah 03:59:20 -26.5 Dark Down 38.9 230.2 Up 03:50:06 - 04:08:34 1584
PNWRO 03:58:33 -22.0 Dark Down 34.5 223.9 Up 03:49:19 - 04:07:47 1550
Idyllwild 03:59:45 -28.6 Dark Down 41.2 233.7 Up 03:50:31 - 04:08:59 1549
Pasco 03:58:31 -21.8 Dark Down 34.5 223.5 Up 03:49:17 - 04:07:45 1539
Anarchist Mountain Observatory 03:58:17 -20.4 Dark Down 32.6 222.0 Up 03:49:03 - 04:07:31 1529
Kelowna 03:58:12 -20.0 Dark Down 31.9 221.6 Up 03:48:58 - 04:07:26 1527
Tonasket 03:58:18 -20.5 Dark Down 32.8 222.0 Up 03:49:04 - 04:07:32 1526
Oroville 03:58:16 -20.4 Dark Down 32.7 221.9 Up 03:49:02 - 04:07:30 1525
Oliver 03:58:15 -20.2 Dark Down 32.5 221.7 Up 03:49:01 - 04:07:29 1519
Penticton 03:58:14 -20.1 Dark Down 32.3 221.5 Up 03:49:00 - 04:07:28 1519
Okanagan Falls 03:58:14 -20.2 Dark Down 32.4 221.6 Up 03:49:00 - 04:07:28 1518
Okanogan 03:58:19 -20.6 Dark Down 33.1 222.0 Up 03:49:05 - 04:07:33 1518
Summerland 03:58:13 -20.0 Dark Down 32.3 221.4 Up 03:48:59 - 04:07:27 1513
Lone Pine 03:59:26 -26.5 Dark Down 40.4 230.3 Up 03:50:12 - 04:08:40 1513
Brewster 03:58:20 -20.6 Dark Down 33.4 221.9 Up 03:49:06 - 04:07:34 1507
Hawthorne 03:59:14 -25.3 Dark Down 39.5 228.4 Up 03:50:00 - 04:08:28 1505
Bishop 03:59:21 -25.9 Dark Down 40.1 229.4 Up 03:50:07 - 04:08:35 1503
Manson/Chelan 03:58:21 -20.4 Dark Down 33.8 221.6 Up 03:49:07 - 04:07:35 1487
Yerington 03:59:10 -24.7 Dark Down 39.5 227.6 Up 03:49:56 - 04:08:24 1479
Wenatchee 03:58:23 -20.5 Dark Down 34.2 221.7 Up 03:49:09 - 04:07:37 1477
Toppenish/White Swan 03:58:28 -20.9 Dark Down 35.0 222.1 Up 03:49:14 - 04:07:42 1470
Lee Vining 03:59:16 -25.2 Dark Down 40.1 228.3 Up 03:50:02 - 04:08:30 1468
Ellensburg 03:58:25 -20.6 Dark Down 34.6 221.6 Up 03:49:11 - 04:07:39 1464
Yakima 03:58:27 -20.7 Dark Down 34.9 221.8 Up 03:49:13 - 04:07:41 1462
Cedarville 03:58:53 -23.0 Dark Down 38.3 224.9 Up 03:49:39 - 04:08:07 1448
Reno 03:59:06 -24.0 Dark Down 39.5 226.5 Up 03:49:52 - 04:08:20 1446
Goldendale 03:58:30 -20.9 Dark Down 35.6 221.9 Up 03:49:16 - 04:07:44 1444
Lakeview 03:58:50 -22.6 Dark Down 38.0 224.4 Up 03:49:36 - 04:08:04 1444
Carson City 03:59:08 -24.2 Dark Down 39.7 226.8 Up 03:49:54 - 04:08:22 1443
Gardnerville 03:59:09 -24.3 Dark Down 39.9 227.0 Up 03:49:55 - 04:08:23 1443
Paisley 03:58:46 -22.3 Dark Down 37.7 223.9 Up 03:49:32 - 04:08:00 1438
Wildwood 03:59:39 -27.0 Dark Down 42.2 231.5 Up 03:50:25 - 04:08:53 1436
Maupin 03:58:33 -21.0 Dark Down 36.2 221.9 Up 03:49:19 - 04:07:47 1426
The Dalles 03:58:30 -20.7 Dark Down 35.9 221.6 Up 03:49:16 - 04:07:44 1423
North Lake 03:58:43 -21.8 Dark Down 37.5 223.2 Up 03:49:29 - 04:07:57 1422
Madras/Culver 03:58:36 -21.1 Dark Down 36.6 222.2 Up 03:49:22 - 04:07:50 1420
Redmond 03:58:37 -21.3 Dark Down 36.9 222.3 Up 03:49:23 - 04:07:51 1415
Portola 03:59:02 -23.5 Dark Down 39.7 225.6 Up 03:49:48 - 04:08:16 1411
Susanville 03:58:59 -23.1 Dark Down 39.4 225.1 Up 03:49:45 - 04:08:13 1407
Bend 03:58:38 -21.2 Dark Down 37.1 222.3 Up 03:49:24 - 04:07:52 1405
Oregon Observatory 03:58:39 -21.2 Dark Down 37.3 222.2 Up 03:49:25 - 04:07:53 1396
Sisters 03:58:36 -21.0 Dark Down 37.1 221.9 Up 03:49:22 - 04:07:50 1392
Gimple 03:59:00 -23.1 Dark Down 39.7 225.0 Up 03:49:46 - 04:08:14 1391
La Pine/Gilchrist 03:58:40 -21.3 Dark Down 37.5 222.3 Up 03:49:26 - 04:07:54 1391
Greenville 03:59:00 -23.0 Dark Down 39.7 224.9 Up 03:49:46 - 04:08:14 1386
Quincy 03:59:01 -23.1 Dark Down 39.8 225.0 Up 03:49:47 - 04:08:15 1383
Tulelake 03:58:49 -21.9 Dark Down 38.7 223.3 Up 03:49:35 - 04:08:03 1375
Fall River/Burney 03:58:53 -22.3 Dark Down 39.3 223.9 Up 03:49:39 - 04:08:07 1370
Klamath Falls 03:58:47 -21.6 Dark Down 38.7 222.8 Up 03:49:33 - 04:08:01 1360
Chiloquin 03:58:45 -21.4 Dark Down 38.5 222.5 Up 03:49:31 - 04:07:59 1359
CPSLO 03:59:27 -24.9 Dark Down 42.8 228.4 Up 03:50:13 - 04:08:41 1327

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 12GT41, (2022/09/23 04:01UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 32.80 102
60Bet Oph      17:43:28.3 +04:34:05  2.8  5.24 111
PPM 180184     17:51:59.5 -01:14:12  6.3  0.98 115
PPM 180176     17:50:09.3 -00:40:45  8.4  0.54 115
PPM 180182     17:51:24.2 -00:32:49  9.2  0.28 115
12GT41         17:51:32.7 -00:15:51 14.9       115
Positions are for J2000

Event circumstances last updated at 2019/08/03 22:37:40 UT

Marc W. Buie, Southwest Research Institute

RECON