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 17:52:34.9 -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=22.6

[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=10.0
Diameter=73.1 km assuming a 5% albedo -- 3.5 sec chord
Diameter=29.8 km assuming a 30% albedo -- 1.4 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 4.1 km RECON observability=1.0 and success probability=10.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Niwot 03:59:33 -33.8 Dark Down 30.0 240.4 Up 03:50:19 - 04:08:47 2245
SwRI 03:59:33 -33.8 Dark Down 30.2 240.4 Up 03:50:19 - 04:08:47 2239
George/Scottsdale 03:59:56 -32.4 Dark Down 37.8 238.3 Up 03:50:42 - 04:09:10 1842
DCO 03:59:45 -30.8 Dark Down 38.0 236.2 Up 03:50:31 - 04:08:59 1786
Patrick 03:59:42 -30.1 Dark Down 38.3 235.3 Up 03:50:28 - 04:08:56 1748
Kingman/Dolan Springs 03:59:42 -30.1 Dark Down 38.6 235.3 Up 03:50:28 - 04:08:56 1734
Lake Havasu City 03:59:47 -30.2 Dark Down 39.1 235.5 Up 03:50:33 - 04:09:01 1708
Parker 03:59:49 -30.3 Dark Down 39.3 235.8 Up 03:50:35 - 04:09:03 1704
Laughlin/Bullhead City 03:59:41 -29.7 Dark Down 38.9 234.8 Up 03:50:27 - 04:08:55 1702
Mohave Valley 03:59:43 -29.8 Dark Down 39.1 235.0 Up 03:50:29 - 04:08:57 1699
Henderson 03:59:36 -29.0 Dark Down 38.7 233.8 Up 03:50:22 - 04:08:50 1691
Searchlight/Boulder City 03:59:40 -29.3 Dark Down 39.0 234.2 Up 03:50:26 - 04:08:54 1687
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 1657
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 1597
Tonopah 03:59:20 -26.5 Dark Down 38.9 230.2 Up 03:50:06 - 04:08:34 1585
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 1550
Pasco 03:58:31 -21.8 Dark Down 34.5 223.5 Up 03:49:17 - 04:07:45 1539
Clarence Fulton 03:58:10 -19.9 Dark Down 31.6 221.5 Up 03:48:56 - 04:07:24 1530
Anarchist Mountain Observatory 03:58:17 -20.4 Dark Down 32.6 222.0 Up 03:49:03 - 04:07:31 1530
Tonasket 03:58:18 -20.5 Dark Down 32.8 222.0 Up 03:49:04 - 04:07:32 1526
Kelowna 03:58:12 -20.0 Dark Down 32.0 221.5 Up 03:48:58 - 04:07:26 1523
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
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 1514
Peachland 03:58:12 -19.9 Dark Down 32.2 221.2 Up 03:48:58 - 04:07:26 1509
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 1506
Bishop 03:59:20 -25.9 Dark Down 40.1 229.4 Up 03:50:06 - 04:08:34 1504
Manson/Chelan 03:58:21 -20.4 Dark Down 33.8 221.6 Up 03:49:07 - 04:07:35 1488
Entiat 03:58:22 -20.5 Dark Down 33.9 221.7 Up 03:49:08 - 04:07:36 1483
Yerington 03:59:10 -24.7 Dark Down 39.5 227.6 Up 03:49:56 - 04:08:24 1480
Wenatchee 03:58:23 -20.5 Dark Down 34.2 221.7 Up 03:49:09 - 04:07:37 1478
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 1469
Ellensburg 03:58:24 -20.6 Dark Down 34.6 221.6 Up 03:49:10 - 04:07:38 1465
Yakima 03:58:27 -20.7 Dark Down 34.9 221.8 Up 03:49:13 - 04:07:41 1462
Cedarville 03:58:54 -23.0 Dark Down 38.3 224.9 Up 03:49:40 - 04:08:08 1449
Reno 03:59:06 -24.0 Dark Down 39.5 226.5 Up 03:49:52 - 04:08:20 1447
Lakeview 03:58:50 -22.6 Dark Down 38.0 224.4 Up 03:49:36 - 04:08:04 1445
Goldendale 03:58:30 -20.9 Dark Down 35.6 221.9 Up 03:49:16 - 04:07:44 1445
Carson City 03:59:07 -24.2 Dark Down 39.7 226.8 Up 03:49:53 - 04:08:21 1444
Gardnerville 03:59:09 -24.3 Dark Down 39.9 227.0 Up 03:49:55 - 04:08:23 1444
Paisley 03:58:47 -22.3 Dark Down 37.7 223.9 Up 03:49:33 - 04:08:01 1439
Wildwood 03:59:38 -27.0 Dark Down 42.2 231.5 Up 03:50:24 - 04:08:52 1437
Maupin 03:58:32 -21.0 Dark Down 36.2 221.9 Up 03:49:18 - 04:07:46 1426
North Lake 03:58:43 -21.8 Dark Down 37.5 223.2 Up 03:49:29 - 04:07:57 1423
The Dalles 03:58:30 -20.7 Dark Down 35.9 221.6 Up 03:49:16 - 04:07:44 1423
Redmond 03:58:37 -21.3 Dark Down 36.9 222.3 Up 03:49:23 - 04:07:51 1415
Portola 03:59:03 -23.5 Dark Down 39.7 225.6 Up 03:49:49 - 04:08:17 1412
Susanville 03:58:58 -23.1 Dark Down 39.4 225.1 Up 03:49:44 - 04:08:12 1408
Bend 03:58:38 -21.2 Dark Down 37.1 222.3 Up 03:49:24 - 04:07:52 1406
Oregon Observatory 03:58:39 -21.2 Dark Down 37.3 222.2 Up 03:49:25 - 04:07:53 1397
Sisters 03:58:36 -21.0 Dark Down 37.1 221.9 Up 03:49:22 - 04:07:50 1393
La Pine/Gilchrist 03:58:40 -21.3 Dark Down 37.5 222.3 Up 03:49:26 - 04:07:54 1392
Gimple 03:59:00 -23.1 Dark Down 39.7 225.0 Up 03:49:46 - 04:08:14 1392
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 1384
Fall River/Burney 03:58:54 -22.3 Dark Down 39.3 223.9 Up 03:49:40 - 04:08:08 1371
Klamath Falls 03:58:47 -21.6 Dark Down 38.7 222.8 Up 03:49:33 - 04:08:01 1361
CPSLO 03:59:27 -24.9 Dark Down 42.8 228.4 Up 03:50:13 - 04:08:41 1327
Victoria 03:58:11 -18.2 Dark Down 34.7 217.7 Up 03:48:57 - 04:07:25 1316

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 2020/03/14 21:25:28 UT

Marc W. Buie, Southwest Research Institute

RECON