RECON: TNO occultation with 02GP32

Event between 02GP32 and star GA0660:26041591 with event index number of 1181678

Geocentric closest approach at 2023/04/15 11:29:22 UTC

J2000 position of star is 18:18:23.6 -22:33:07
Equinox of date position of star is 18:19:44.2 -22:32:30
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 49 degrees from the moon. Moon is 27% illuminated.
TNO apparent brightness V=22.6

[RECON map]
TNO is 34.2 AU from the Sun and 33.8 AU from the Earth.
The TNO is moving 4.2 km/sec on the sky relative to the star, or, 0.6 arcsec/hr.
The 1-sigma error in the time of the event is 1879 seconds.
The 1-sigma cross-track error in the shadow position is 4621 km.
The sky-plane scale is 24513.7 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=234.4 km assuming a 5% albedo -- 56.1 sec chord
Diameter=95.7 km assuming a 30% albedo -- 22.9 sec chord
Dynamical classification is 5:2EEE
 
 
 
 
 
 

Star training set for 02GP32, (2023/04/15 11:29UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:50.3 -26:28:54  0.9 25.05  73
Nunki          18:56:42.5 -26:15:56  2.0  9.19  41
14 Sgr         18:15:39.9 -21:42:18  5.4  1.27  50
PPM 268203     18:19:21.4 -22:19:59  8.0  0.23  49
PPM 268218     18:20:01.6 -22:32:12  9.7  0.05  49
02GP32         18:19:48.1 -22:32:28 16.7        49
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 0.5 sigma about the mid-time.
The median site spacing is 16.2 km RECON observability=0.6 and success probability=3.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 11:31:18 -6.0 CT Up 15.3 175.9 Really Low 11:16:18 - 11:46:18 2088
Kamloops 11:35:00 -14.0 AT Down 15.1 163.0 Really Low 11:20:00 - 11:50:00 1945
Kelowna 11:34:52 -14.0 AT Down 16.0 163.7 Really Low 11:19:52 - 11:49:52 1926
Peachland 11:34:56 -14.2 AT Down 16.1 163.4 Really Low 11:19:56 - 11:49:56 1919
Summerland 11:34:56 -14.2 AT Down 16.3 163.5 Really Low 11:19:56 - 11:49:56 1914
Penticton 11:34:55 -14.2 AT Down 16.3 163.6 Really Low 11:19:55 - 11:49:55 1913
Oliver 11:34:57 -14.4 AT Down 16.7 163.6 Really Low 11:19:57 - 11:49:57 1900
Anarchist Mountain Observatory 11:34:55 -14.4 AT Down 16.9 163.7 Really Low 11:19:55 - 11:49:55 1896
Tonasket 11:34:58 -14.6 AT Down 17.2 163.7 Really Low 11:19:58 - 11:49:58 1883
Okanogan 11:35:02 -14.9 AT Down 17.5 163.5 Really Low 11:20:02 - 11:50:02 1869
Brewster 11:35:08 -15.1 AT Down 17.7 163.3 Really Low 11:20:08 - 11:50:08 1857
Manson/Chelan 11:35:14 -15.4 AT Down 17.8 163.0 Really Low 11:20:14 - 11:50:14 1845
Victoria 11:36:00 -16.7 AT Down 16.6 160.1 Really Low 11:21:00 - 11:51:00 1835
Wenatchee 11:35:19 -15.8 AT Down 18.2 162.8 Really Low 11:20:19 - 11:50:19 1824
Ellensburg 11:35:24 -16.1 AT Down 18.6 162.6 Really Low 11:20:24 - 11:50:24 1805
Yakima 11:35:27 -16.4 AT Down 19.0 162.5 Really Low 11:20:27 - 11:50:27 1788
Toppenish/White Swan 11:35:26 -16.4 AT Down 19.2 162.6 Really Low 11:20:26 - 11:50:26 1781
PNWRO 11:35:02 -15.8 AT Up 19.9 163.9 Really Low 11:20:02 - 11:50:02 1781
Goldendale 11:35:35 -16.9 AT Down 19.7 162.2 Really Low 11:20:35 - 11:50:35 1753
The Dalles 11:35:42 -17.2 AT Down 19.8 161.9 Really Low 11:20:42 - 11:50:42 1739
Maupin 11:35:42 -17.4 AT Down 20.2 161.9 Low 11:20:42 - 11:50:42 1722
Sisters 11:35:56 -18.2 Dark Down 21.0 161.4 Low 11:20:56 - 11:50:56 1678
Bend 11:35:53 -18.2 Dark Down 21.3 161.6 Low 11:20:53 - 11:50:53 1670
Oregon Observatory 11:35:55 -18.3 Dark Down 21.4 161.5 Low 11:20:55 - 11:50:55 1661
North Lake 11:35:50 -18.4 Dark Up 22.1 161.9 Low 11:20:50 - 11:50:50 1637
Dunrhomin 11:31:18 -10.2 NT Up 27.1 176.3 Low 11:16:18 - 11:46:18 1613
CU-SBO 11:31:20 -10.3 NT Up 27.4 176.2 Low 11:16:20 - 11:46:20 1600
Chiloquin 11:36:11 -19.3 Dark Up 22.6 161.0 Low 11:21:11 - 11:51:11 1593
Lakeview 11:35:46 -18.6 Dark Up 23.2 162.3 Low 11:20:46 - 11:50:46 1592
Klamath Falls 11:36:08 -19.4 Dark Up 22.9 161.0 Low 11:21:08 - 11:51:08 1577
Cedarville 11:35:46 -18.9 Dark Up 23.9 162.4 Low 11:20:46 - 11:50:46 1561
Fall River/Burney 11:36:09 -19.9 Dark Up 24.1 161.2 Low 11:21:09 - 11:51:09 1522
Susanville 11:36:00 -19.8 Dark Up 24.9 161.8 Low 11:21:00 - 11:51:00 1498
Gimple 11:36:05 -20.0 Dark Up 25.1 161.6 Low 11:21:05 - 11:51:05 1481
Greenville 11:36:07 -20.1 Dark Up 25.1 161.5 Low 11:21:07 - 11:51:07 1480
Quincy 11:36:05 -20.2 Dark Up 25.3 161.5 Low 11:21:05 - 11:51:05 1470
Portola 11:36:00 -20.0 Dark Up 25.5 161.9 Low 11:21:00 - 11:51:00 1469
Reno 11:35:48 -19.7 Dark Up 25.9 162.4 Low 11:20:48 - 11:50:48 1462
Carson City 11:35:50 -19.9 Dark Up 26.2 162.4 Low 11:20:50 - 11:50:50 1443
Yerington 11:35:39 -19.6 Dark Up 26.6 163.0 Low 11:20:39 - 11:50:39 1439
Gardnerville 11:35:50 -20.0 Dark Up 26.5 162.4 Low 11:20:50 - 11:50:50 1430
Hawthorne 11:35:32 -19.5 Dark Up 27.1 163.4 Low 11:20:32 - 11:50:32 1420
Tonopah 11:35:07 -18.9 Dark Up 27.8 164.7 Low 11:20:07 - 11:50:07 1409
Lee Vining 11:35:43 -20.1 Dark Up 27.6 162.9 Low 11:20:43 - 11:50:43 1383
Bishop 11:35:32 -19.9 Dark Up 28.3 163.5 Low 11:20:32 - 11:50:32 1357
Beatty 11:35:03 -19.1 Dark Up 29.1 165.0 Low 11:20:03 - 11:50:03 1347
Indian Springs 11:34:44 -18.6 Dark Up 29.6 165.9 Low 11:19:44 - 11:49:44 1339
Henderson 11:34:31 -18.4 Dark Up 30.2 166.5 Up 11:19:31 - 11:49:31 1314
Patrick 11:34:13 -17.9 AT Up 31.0 167.6 Up 11:19:13 - 11:49:13 1288
Kingman/Dolan Springs 11:34:17 -18.1 Dark Up 31.2 167.3 Up 11:19:17 - 11:49:17 1273
Laughlin/Bullhead City 11:34:26 -18.5 Dark Up 31.1 166.8 Up 11:19:26 - 11:49:26 1266
Mohave Valley 11:34:27 -18.6 Dark Up 31.4 166.8 Up 11:19:27 - 11:49:27 1249
Lake Havasu City 11:34:24 -18.6 Dark Up 31.8 167.0 Up 11:19:24 - 11:49:24 1227
Parker 11:34:23 -18.7 Dark Up 32.2 167.0 Up 11:19:23 - 11:49:23 1206
George/Scottsdale 11:33:36 -17.3 AT Up 33.0 169.3 Up 11:18:36 - 11:48:36 1201
Wildwood 11:35:47 -21.7 Dark Up 31.4 162.8 Up 11:20:47 - 11:50:47 1159
Idyllwild 11:35:13 -20.6 Dark Up 32.1 164.6 Up 11:20:13 - 11:50:13 1158
Calipatria 11:34:52 -20.0 Dark Up 33.0 165.6 Up 11:19:52 - 11:49:52 1130
Yuma 11:34:33 -19.6 Dark Up 33.5 166.4 Up 11:19:33 - 11:49:33 1112

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 02GP32, (2023/04/15 11:29UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 25.05  73
Nunki          18:55:15.9 -26:17:49  2.0  9.19  41
14 Sgr         18:14:15.9 -21:42:48  5.4  1.27  50
PPM 268203     18:17:57.0 -22:20:37  8.0  0.23  49
PPM 268218     18:18:37.1 -22:32:51  9.7  0.05  49
02GP32         18:18:23.6 -22:33:07 16.7        49
Positions are for J2000

Event circumstances last updated at 2022/03/19 00:53:01 UT

Marc W. Buie, Southwest Research Institute

RECON