RECON: TNO occultation with 12GT41

Event between 12GT41 and star GA0900:06254675 with event index number of 1583332

Geocentric closest approach at 2022/06/26 08:00:04 UTC

J2000 position of star is 17:58:29.3 +01:40:30
Equinox of date position of star is 17:59:30.7 +01:40:28
Stellar brightness G=12.8, use SENSEUP=32
Star is 144 degrees from the moon. Moon is 7% illuminated.
TNO apparent brightness V=22.3

[RECON map]
TNO is 16.8 AU from the Sun and 15.8 AU from the Earth.
The TNO is moving 21.5 km/sec on the sky relative to the star, or, 6.8 arcsec/hr.
The 1-sigma error in the time of the event is 122 seconds.
The 1-sigma cross-track error in the shadow position is 1093 km.
The sky-plane scale is 11486.6 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=73.1 km assuming a 5% albedo -- 2.8 sec chord
Diameter=29.8 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 12GT41, (2022/06/26 08:00UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.4 -26:28:48  0.9 35.38 174
60Bet Oph      17:44:35.1 +04:33:34  2.8  4.74 145
PPM 164858     17:57:27.1 +00:40:08  5.7  1.14 145
PPM 164835     17:56:45.6 +02:04:23  7.4  0.82 144
PPM 164937     18:00:11.3 +02:00:44 10.0  0.37 144
PPM 164896     17:58:52.3 +01:51:22 11.0  0.26 144
12GT41         17:59:37.6 +01:40:28 12.8       144
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 20.3 km RECON observability=1.0 and success probability=17.1%
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 07:59:09 -16.4 AT Down 41.2 187.0 Up 07:48:31 - 08:09:47 2841
Kelowna 07:59:10 -16.8 AT Down 41.6 186.9 Up 07:48:32 - 08:09:48 2814
Peachland 07:59:11 -16.9 AT Down 41.7 186.5 Up 07:48:33 - 08:09:49 2810
Summerland 07:59:11 -17.0 AT Down 41.9 186.6 Up 07:48:33 - 08:09:49 2797
Penticton 07:59:10 -17.1 AT Down 41.9 186.8 Up 07:48:32 - 08:09:48 2791
Oliver 07:59:10 -17.5 AT Down 42.3 186.8 Up 07:48:32 - 08:09:48 2765
Victoria 07:59:23 -18.0 Dark Down 43.1 181.7 Up 07:48:45 - 08:10:01 2762
Anarchist Mountain Observatory 07:59:10 -17.6 AT Down 42.5 187.1 Up 07:48:32 - 08:09:48 2750
Tonasket 07:59:10 -17.9 AT Down 42.8 187.0 Up 07:48:32 - 08:09:48 2727
Okanogan 07:59:11 -18.3 Dark Down 43.1 186.9 Up 07:48:33 - 08:09:49 2703
Brewster 07:59:11 -18.5 Dark Down 43.4 186.6 Up 07:48:33 - 08:09:49 2685
Manson/Chelan 07:59:13 -18.8 Dark Down 43.6 186.2 Up 07:48:35 - 08:09:51 2673
Entiat 07:59:13 -19.0 Dark Down 43.9 186.1 Up 07:48:35 - 08:09:51 2657
Wenatchee 07:59:14 -19.2 Dark Down 44.1 186.0 Up 07:48:36 - 08:09:52 2639
Ellensburg 07:59:14 -19.6 Dark Down 44.5 185.7 Up 07:48:36 - 08:09:52 2610
Yakima 07:59:15 -20.0 Dark Down 44.9 185.7 Up 07:48:37 - 08:09:53 2578
Toppenish/White Swan 07:59:14 -20.3 Dark Down 45.1 186.0 Up 07:48:36 - 08:09:52 2559
Pasco 07:59:10 -20.4 Dark Down 45.2 187.8 Up 07:48:32 - 08:09:48 2533
Goldendale 07:59:16 -20.8 Dark Down 45.7 185.5 Up 07:48:38 - 08:09:54 2521
PNWRO 07:59:09 -20.6 Dark Down 45.4 188.1 Up 07:48:31 - 08:09:47 2510
The Dalles 07:59:17 -21.0 Dark Down 46.0 185.0 Up 07:48:39 - 08:09:55 2507
Maupin 07:59:17 -21.4 Dark Down 46.4 185.1 Up 07:48:39 - 08:09:55 2473
Sisters 07:59:19 -22.3 Dark Down 47.3 184.5 Up 07:48:41 - 08:09:57 2409
Redmond 07:59:18 -22.3 Dark Down 47.3 185.1 Up 07:48:40 - 08:09:56 2401
Bend 07:59:18 -22.6 Dark Down 47.5 184.9 Up 07:48:40 - 08:09:56 2386
Oregon Observatory 07:59:19 -22.7 Dark Down 47.7 184.7 Up 07:48:41 - 08:09:57 2373
La Pine/Gilchrist 07:59:19 -22.9 Dark Down 47.9 184.7 Up 07:48:41 - 08:09:57 2357
North Lake 07:59:17 -23.4 Dark Down 48.3 185.6 Up 07:48:39 - 08:09:55 2313
Paisley 07:59:16 -23.9 Dark Down 48.8 186.2 Up 07:48:38 - 08:09:54 2263
Klamath Falls 07:59:21 -24.4 Dark Down 49.4 184.4 Up 07:48:43 - 08:09:59 2241
Lakeview 07:59:16 -24.5 Dark Down 49.3 186.6 Up 07:48:38 - 08:09:54 2218
Cedarville 07:59:15 -25.1 Dark Down 49.9 186.9 Up 07:48:37 - 08:09:53 2160
Fall River/Burney 07:59:20 -25.6 Dark Down 50.5 185.1 Up 07:48:42 - 08:09:58 2135
Susanville 07:59:18 -26.2 Dark Down 51.1 186.3 Up 07:48:40 - 08:09:56 2071
Greenville 07:59:19 -26.5 Dark Down 51.4 185.9 Up 07:48:41 - 08:09:57 2051
Gimple 07:59:18 -26.5 Dark Down 51.4 186.0 Up 07:48:40 - 08:09:56 2050
Quincy 07:59:19 -26.7 Dark Down 51.6 185.9 Up 07:48:41 - 08:09:57 2034
Portola 07:59:17 -26.8 Dark Down 51.7 186.7 Up 07:48:39 - 08:09:55 2016
Reno 07:59:15 -27.1 Dark Down 51.9 187.8 Up 07:48:37 - 08:09:53 1984
Carson City 07:59:15 -27.5 Dark Down 52.2 187.9 Up 07:48:37 - 08:09:53 1952
Gardnerville 07:59:15 -27.7 Dark Down 52.5 188.0 Up 07:48:37 - 08:09:53 1930
Yerington 07:59:12 -27.7 Dark Down 52.4 188.9 Up 07:48:34 - 08:09:50 1926
Hawthorne 07:59:11 -28.1 Dark Down 52.7 189.9 Up 07:48:33 - 08:09:49 1877
Lee Vining 07:59:13 -28.7 Dark Down 53.4 189.2 Up 07:48:35 - 08:09:51 1834
Niwot 07:58:19 -25.3 Dark Down 47.8 209.3 Up 07:47:41 - 08:08:57 1834
SwRI 07:58:20 -25.4 Dark Down 47.9 209.3 Up 07:47:42 - 08:08:58 1825
Tonopah 07:59:05 -28.6 Dark Down 53.0 192.3 Up 07:48:27 - 08:09:43 1815
Bishop 07:59:10 -29.3 Dark Down 53.9 190.6 Up 07:48:32 - 08:09:48 1770
Beatty 07:59:04 -29.7 Dark Down 54.0 193.4 Up 07:48:26 - 08:09:42 1704
Indian Springs 07:58:59 -30.0 Dark Down 54.1 195.3 Up 07:48:21 - 08:09:37 1658
CPSLO 07:59:20 -31.3 Dark Down 56.2 187.2 Up 07:48:42 - 08:09:58 1616
Henderson 07:58:57 -30.5 Dark Down 54.5 196.6 Up 07:48:19 - 08:09:35 1599
Searchlight/Boulder City 07:58:57 -31.1 Dark Down 55.0 197.0 Up 07:48:19 - 08:09:35 1545
Patrick 07:58:53 -31.0 Dark Down 54.8 198.7 Up 07:48:15 - 08:09:31 1524
Laughlin/Bullhead City 07:58:55 -31.3 Dark Down 55.2 197.7 Up 07:48:17 - 08:09:33 1512
Kingman/Dolan Springs 07:58:53 -31.3 Dark Down 55.1 198.5 Up 07:48:15 - 08:09:31 1506
Mohave Valley 07:58:55 -31.6 Dark Down 55.5 197.8 Up 07:48:17 - 08:09:33 1486
DCO 07:58:50 -31.3 Dark Down 54.9 200.0 Up 07:48:12 - 08:09:28 1486
Wildwood 07:59:13 -32.6 Dark Down 57.1 191.1 Up 07:48:35 - 08:09:51 1472
Lake Havasu City 07:58:55 -32.0 Dark Down 55.8 198.4 Up 07:48:17 - 08:09:33 1445
Parker 07:58:54 -32.3 Dark Down 56.1 198.6 Up 07:48:16 - 08:09:32 1412
Idyllwild 07:59:05 -32.9 Dark Down 57.1 194.6 Up 07:48:27 - 08:09:43 1410
Blythe 07:58:56 -32.9 Dark Down 56.7 198.4 Up 07:48:18 - 08:09:34 1367
George/Scottsdale 07:58:45 -32.5 Dark Down 55.8 202.9 Up 07:48:07 - 08:09:23 1335
Calipatria 07:59:00 -33.4 Dark Down 57.4 197.0 Up 07:48:22 - 08:09:38 1334
Yuma 07:58:56 -33.8 Dark Down 57.6 198.7 Up 07:48:18 - 08:09:34 1279

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, (2022/06/26 08:00UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 35.38 174
60Bet Oph      17:43:28.3 +04:34:05  2.8  4.74 145
PPM 164858     17:56:18.3 +00:40:14  5.7  1.14 145
PPM 164835     17:55:37.5 +02:04:30  7.4  0.82 144
PPM 164937     17:59:03.3 +02:00:45 10.0  0.37 144
PPM 164896     17:57:44.1 +01:51:26 11.0  0.26 144
12GT41         17:58:29.3 +01:40:30 12.8       144
Positions are for J2000

Event circumstances last updated at 2020/03/13 22:45:01 UT

Marc W. Buie, Southwest Research Institute

RECON