RECON: TNO occultation with 11UA413

Event between 11UA413 and star GA1120:00408823 with event index number of 2126820

Geocentric closest approach at 2022/08/11 11:32:48 UTC

J2000 position of star is 03:25:26.4 +23:31:02
Equinox of date position of star is 03:26:44.8 +23:35:38
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 105 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=23.9

[RECON map]
TNO is 32.4 AU from the Sun and 32.5 AU from the Earth.
The TNO is moving 8.8 km/sec on the sky relative to the star, or, 1.3 arcsec/hr.
The 1-sigma error in the time of the event is 530 seconds.
The 1-sigma cross-track error in the shadow position is 4870 km.
The sky-plane scale is 23598.9 km/arcsec.

The TNO has an absolute magnitude Hv=8.6
Diameter=114.8 km assuming a 5% albedo -- 13.1 sec chord
Diameter=46.9 km assuming a 30% albedo -- 5.4 sec chord
Dynamical classification is 4:3E
 
 
 
 
 
 

Star training set for 11UA413, (2022/08/11 11:33UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:13.2 +16:33:11  0.8 17.96 118
44Zet Per      03:55:33.5 +31:56:56  2.8 10.50 113
64 Ari         03:25:38.9 +24:48:09  5.5  1.23 105
66 Ari         03:29:46.2 +22:52:51  7.2  0.99 105
PPM 092520     03:29:09.8 +24:15:36  8.9  0.86 105
PPM 092493     03:26:53.1 +23:27:03 11.2  0.15 105
11UA413        03:26:46.2 +23:35:44 15.4       105
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 1.7 sigma about the mid-time.
The median site spacing is 26.5 km RECON observability=0.6 and success probability=6.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 11:30:45 -13.4 AT Up 48.5 111.7 Up 11:15:45 - 11:45:45 -1142
Kamloops 11:31:22 -10.4 NT Up 49.5 117.4 Up 11:16:22 - 11:46:22 -1161
Peachland 11:31:15 -10.7 NT Up 50.3 117.0 Up 11:16:15 - 11:46:15 -1236
Kelowna 11:31:17 -10.5 NT Up 50.4 117.5 Up 11:16:17 - 11:46:17 -1243
Summerland 11:31:13 -10.8 NT Up 50.4 117.0 Up 11:16:13 - 11:46:13 -1248
Penticton 11:31:13 -10.8 NT Up 50.5 117.0 Up 11:16:13 - 11:46:13 -1257
Oliver 11:31:10 -11.0 NT Up 50.6 116.6 Up 11:16:10 - 11:46:10 -1276
Anarchist Mountain Observatory 11:31:09 -11.0 NT Up 50.8 116.7 Up 11:16:09 - 11:46:09 -1294
Tonasket 11:31:05 -11.2 NT Up 50.9 116.2 Up 11:16:05 - 11:46:05 -1308
Okanogan 11:31:01 -11.5 NT Up 50.9 115.7 Up 11:16:01 - 11:46:01 -1321
Manson/Chelan 11:30:53 -12.2 AT Up 50.8 114.5 Up 11:15:53 - 11:45:53 -1322
Brewster 11:30:57 -11.8 NT Up 50.9 115.1 Up 11:15:57 - 11:45:57 -1327
Wenatchee 11:30:47 -12.6 AT Up 50.9 113.7 Up 11:15:47 - 11:45:47 -1341
Ellensburg 11:30:41 -13.0 AT Up 50.9 113.0 Up 11:15:41 - 11:45:41 -1355
Yakima 11:30:37 -13.2 AT Up 51.0 112.5 Up 11:15:37 - 11:45:37 -1377
Toppenish/White Swan 11:30:36 -13.3 AT Up 51.2 112.4 Up 11:15:36 - 11:45:36 -1397
The Dalles 11:30:23 -14.2 AT Up 50.9 110.7 Up 11:15:23 - 11:45:23 -1406
Goldendale 11:30:28 -13.9 AT Up 51.1 111.3 Up 11:15:28 - 11:45:28 -1409
Maupin 11:30:20 -14.5 AT Up 51.1 110.3 Up 11:15:20 - 11:45:20 -1435
Sisters 11:30:08 -15.3 AT Up 51.1 108.7 Up 11:15:08 - 11:45:08 -1463
PNWRO 11:30:39 -12.7 AT Up 52.3 113.6 Up 11:15:39 - 11:45:39 -1489
Bend 11:30:06 -15.3 AT Up 51.3 108.7 Up 11:15:06 - 11:45:06 -1489
Oregon Observatory 11:30:04 -15.5 AT Up 51.3 108.3 Up 11:15:04 - 11:45:04 -1493
Chiloquin 11:29:47 -16.6 AT Up 51.3 106.3 Up 11:14:47 - 11:44:47 -1552
North Lake 11:29:59 -15.6 AT Up 51.8 108.1 Up 11:14:59 - 11:44:59 -1558
Klamath Falls 11:29:44 -16.8 AT Up 51.5 105.9 Up 11:14:44 - 11:44:44 -1577
Lakeview 11:29:51 -16.0 AT Up 52.5 107.3 Up 11:14:51 - 11:44:51 -1650
Fall River/Burney 11:29:33 -17.4 AT Up 52.0 104.8 Up 11:14:33 - 11:44:33 -1669
Sleaford 11:32:51 -2.0 CT Down 56.0 137.9 Up 11:17:51 - 11:47:51 -1679
Cedarville 11:29:45 -16.3 AT Up 52.8 106.6 Up 11:14:45 - 11:44:45 -1700
Susanville 11:29:31 -17.4 AT Up 52.7 104.7 Up 11:14:31 - 11:44:31 -1746
Greenville 11:29:26 -17.7 AT Up 52.6 104.0 Up 11:14:26 - 11:44:26 -1749
Gimple 11:29:27 -17.7 AT Up 52.6 104.1 Up 11:14:27 - 11:44:27 -1753
Quincy 11:29:24 -17.8 AT Up 52.6 103.8 Up 11:14:24 - 11:44:24 -1762
Portola 11:29:25 -17.6 AT Up 53.0 104.0 Up 11:14:25 - 11:44:25 -1795
Reno 11:29:26 -17.4 AT Up 53.5 104.3 Up 11:14:26 - 11:44:26 -1845
Carson City 11:29:22 -17.6 AT Up 53.6 103.8 Up 11:14:22 - 11:44:22 -1870
Gardnerville 11:29:21 -17.7 AT Up 53.7 103.5 Up 11:14:21 - 11:44:21 -1889
Yerington 11:29:25 -17.3 AT Up 54.2 104.1 Up 11:14:25 - 11:44:25 -1916
Hawthorne 11:29:22 -17.3 AT Up 54.7 104.0 Up 11:14:22 - 11:44:22 -1975
Lee Vining 11:29:13 -18.0 AT Up 54.4 102.7 Up 11:14:13 - 11:44:13 -1987
Bishop 11:29:12 -17.9 AT Up 55.1 102.5 Up 11:14:12 - 11:44:12 -2066
Tonopah 11:29:26 -16.7 AT Up 55.9 104.6 Up 11:14:26 - 11:44:26 -2081
Beatty 11:29:17 -17.1 AT Up 56.5 103.3 Up 11:14:17 - 11:44:17 -2186
Indian Springs 11:29:20 -16.5 AT Up 57.4 103.8 Up 11:14:20 - 11:44:20 -2268
Wildwood 11:28:37 -20.0 Dark Up 55.4 97.6 Up 11:13:37 - 11:43:37 -2283
Henderson 11:29:19 -16.4 AT Up 58.1 103.6 Up 11:14:19 - 11:44:19 -2344
Idyllwild 11:28:46 -18.9 Dark Up 57.0 98.5 Up 11:13:46 - 11:43:46 -2414
Laughlin/Bullhead City 11:29:14 -16.6 AT Up 58.6 102.5 Up 11:14:14 - 11:44:14 -2430
Mohave Valley 11:29:11 -16.7 AT Up 58.6 102.1 Up 11:14:11 - 11:44:11 -2450
Patrick 11:29:20 -15.9 AT Up 59.1 103.6 Up 11:14:20 - 11:44:20 -2450
Kingman/Dolan Springs 11:29:17 -16.2 AT Up 59.0 103.0 Up 11:14:17 - 11:44:17 -2456
Lake Havasu City 11:29:08 -16.8 AT Up 58.9 101.6 Up 11:14:08 - 11:44:08 -2493
Parker 11:29:05 -17.0 AT Up 59.0 101.1 Up 11:14:05 - 11:44:05 -2521
Calipatria 11:28:47 -18.4 Dark Up 58.1 98.4 Up 11:13:47 - 11:43:47 -2527
Dunrhomin 11:31:07 -7.3 NT Down 63.9 122.7 Up 11:16:07 - 11:46:07 -2549
CU-SBO 11:31:03 -7.5 NT Down 64.0 122.1 Up 11:16:03 - 11:46:03 -2563
Yuma 11:28:49 -18.0 Dark Up 58.9 98.4 Up 11:13:49 - 11:43:49 -2610
George/Scottsdale 11:29:18 -15.4 AT Up 61.1 102.5 Up 11:14:18 - 11:44:18 -2689

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 11UA413, (2022/08/11 11:33UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 17.96 118
44Zet Per      03:54:07.9 +31:53:01  2.8 10.50 113
64 Ari         03:24:18.5 +24:43:25  5.5  1.23 105
66 Ari         03:28:26.6 +22:48:13  7.2  0.99 105
PPM 092520     03:27:49.6 +24:10:58  8.9  0.86 105
PPM 092493     03:25:33.4 +23:22:22 11.2  0.15 105
11UA413        03:25:26.4 +23:31:02 15.4       105
Positions are for J2000

Event circumstances last updated at 2022/03/14 01:06:37 UT

Marc W. Buie, Southwest Research Institute

RECON