RECON: TNO occultation with 04KE19

Event between 04KE19 and star GA0660:08012011 with event index number of 1972862

Geocentric closest approach at 2024/05/30 07:44:20 UTC

J2000 position of star is 16:48:32.3 -23:11:14
Equinox of date position of star is 16:49:58.6 -23:13:39
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 81 degrees from the moon. Moon is 55% illuminated.
Apparent brightness V=22.7

[RECON map]
Object is 43.3 AU from the Sun and 42.3 AU from the Earth.
Apparent velocity is 24.7 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 239 seconds.
The 1-sigma cross-track error in the shadow position is 2360 km.
The sky-plane scale is 30650.0 km/arcsec.

The object has an absolute magnitude Hv=6.4
Diameter=319.2 km assuming a 5% albedo -- 12.9 sec chord
Diameter=130.3 km assuming a 30% albedo -- 5.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 04KE19, (2024/05/30 07:44UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.5 -26:29:02  0.9  5.42  84
23Tau Sco      16:37:24.4 -28:15:52  2.8  5.78  82
PPM 266088     16:54:51.9 -20:27:15  5.7  2.99  80
PPM 265937     16:47:57.2 -22:40:15  8.4  0.73  81
PPM 265964     16:49:01.1 -23:14:09  9.4  0.23  81
04KE19         16:50:00.7 -23:13:43 16.5        80
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 3.8 sigma about the mid-time.
The median site spacing is 14.9 km RECON observability=0.7 and success probability=7.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 07:44:34 -15.5 AT Down 14.5 186.1 Really Low 07:29:34 - 07:59:34 -1192
Kamloops 07:45:13 -17.4 AT Down 15.8 172.5 Really Low 07:30:13 - 08:00:13 -1362
Kelowna 07:45:11 -18.2 Dark Down 16.7 173.3 Really Low 07:30:11 - 08:00:11 -1378
Peachland 07:45:12 -18.3 Dark Down 16.8 173.0 Really Low 07:30:12 - 08:00:12 -1385
Summerland 07:45:12 -18.5 Dark Down 16.9 173.1 Really Low 07:30:12 - 08:00:12 -1389
Penticton 07:45:11 -18.6 Dark Down 17.0 173.2 Really Low 07:30:11 - 08:00:11 -1390
Oliver 07:45:12 -18.9 Dark Down 17.4 173.2 Really Low 07:30:12 - 08:00:12 -1402
Anarchist Mountain Observatory 07:45:11 -19.1 Dark Down 17.5 173.4 Really Low 07:30:11 - 08:00:11 -1405
Okanogan 07:45:12 -19.7 Dark Down 18.2 173.1 Really Low 07:30:12 - 08:00:12 -1432
Brewster 07:45:12 -20.0 Dark Down 18.4 172.9 Really Low 07:30:12 - 08:00:12 -1444
Manson/Chelan 07:45:14 -20.2 Dark Down 18.6 172.6 Really Low 07:30:14 - 08:00:14 -1457
Wenatchee 07:45:14 -20.7 Dark Down 19.1 172.4 Really Low 07:30:14 - 08:00:14 -1477
Victoria 07:45:23 -19.4 Dark Down 17.6 169.5 Really Low 07:30:23 - 08:00:23 -1477
Ellensburg 07:45:15 -21.1 Dark Down 19.4 172.2 Really Low 07:30:15 - 08:00:15 -1496
Yakima 07:45:15 -21.5 Dark Down 19.8 172.1 Really Low 07:30:15 - 08:00:15 -1512
PNWRO 07:45:10 -22.1 Dark Down 20.6 173.7 Low 07:30:10 - 08:00:10 -1514
Toppenish/White Swan 07:45:15 -21.7 Dark Down 20.1 172.3 Low 07:30:15 - 08:00:15 -1519
The Dalles 07:45:17 -22.4 Dark Down 20.8 171.5 Low 07:30:17 - 08:00:17 -1561
Maupin 07:45:17 -22.9 Dark Down 21.2 171.5 Low 07:30:17 - 08:00:17 -1577
Sisters 07:45:19 -23.7 Dark Down 22.0 171.0 Low 07:30:19 - 08:00:19 -1622
Bend 07:45:18 -24.0 Dark Down 22.3 171.3 Low 07:30:18 - 08:00:18 -1628
Dunrhomin 07:44:25 -27.0 Dark Up 26.2 187.3 Low 07:29:25 - 07:59:25 -1635
Oregon Observatory 07:45:19 -24.1 Dark Down 22.4 171.1 Low 07:30:19 - 08:00:19 -1638
Nikitin 07:44:25 -27.1 Dark Up 26.4 187.3 Low 07:29:25 - 07:59:25 -1644
CU-SBO 07:44:25 -27.2 Dark Up 26.5 187.2 Low 07:29:25 - 07:59:25 -1648
Chiloquin 07:45:21 -25.4 Dark Down 23.7 170.6 Low 07:30:21 - 08:00:21 -1705
Klamath Falls 07:45:20 -25.8 Dark Down 24.0 170.7 Low 07:30:20 - 08:00:20 -1720
Cedarville 07:45:15 -26.5 Dark Down 24.9 172.2 Low 07:30:15 - 08:00:15 -1729
Fall River/Burney 07:45:19 -27.0 Dark Down 25.2 171.0 Low 07:30:19 - 08:00:19 -1772
Gimple 07:45:18 -27.9 Dark Down 26.2 171.4 Low 07:30:18 - 08:00:18 -1809
Greenville 07:45:18 -27.9 Dark Down 26.2 171.4 Low 07:30:18 - 08:00:18 -1810
Portola 07:45:16 -28.2 Dark Down 26.6 171.8 Low 07:30:16 - 08:00:16 -1820
Quincy 07:45:18 -28.1 Dark Down 26.4 171.3 Low 07:30:18 - 08:00:18 -1821
Reno 07:45:14 -28.5 Dark Down 26.9 172.4 Low 07:30:14 - 08:00:14 -1824
Carson City 07:45:14 -28.9 Dark Down 27.3 172.4 Low 07:30:14 - 08:00:14 -1842
Yerington 07:45:12 -29.1 Dark Down 27.5 173.1 Low 07:30:12 - 08:00:12 -1843
Gardnerville 07:45:14 -29.1 Dark Down 27.5 172.5 Low 07:30:14 - 08:00:14 -1854
Hawthorne 07:45:11 -29.6 Dark Down 28.0 173.6 Low 07:30:11 - 08:00:11 -1860
Lee Vining 07:45:12 -30.1 Dark Down 28.5 173.1 Low 07:30:12 - 08:00:12 -1897
Bishop 07:45:09 -30.8 Dark Down 29.2 173.8 Low 07:30:09 - 08:00:09 -1920
Beatty 07:45:04 -31.2 Dark Down 29.8 175.4 Low 07:30:04 - 08:00:04 -1923
Patrick 07:44:54 -32.7 Dark Down 31.4 178.4 Up 07:29:54 - 07:59:54 -1971
Laughlin/Bullhead City 07:44:56 -32.9 Dark Down 31.6 177.7 Up 07:29:56 - 07:59:56 -1994
Lake Havasu City 07:44:55 -33.6 Dark Down 32.3 177.9 Up 07:29:55 - 07:59:55 -2030
George/Scottsdale 07:44:45 -34.2 Dark Down 33.1 180.6 Up 07:29:45 - 07:59:45 -2048
Idyllwild 07:45:04 -34.4 Dark Down 32.9 175.3 Up 07:30:04 - 08:00:04 -2106
Wildwood 07:45:10 -34.0 Dark Down 32.4 173.3 Up 07:30:10 - 08:00:10 -2113
Calipatria 07:44:59 -35.0 Dark Down 33.6 176.6 Up 07:29:59 - 07:59:59 -2129
Yuma 07:44:56 -35.4 Dark Down 34.1 177.5 Up 07:29:56 - 07:59:56 -2144

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 04KE19, (2024/05/30 07:44UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  5.42  84
23Tau Sco      16:35:52.9 -28:12:58  2.8  5.78  82
PPM 266088     16:53:25.2 -20:24:57  5.7  2.99  80
PPM 265937     16:46:29.2 -22:37:43  8.4  0.73  81
PPM 265964     16:47:32.7 -23:11:39  9.4  0.23  81
04KE19         16:48:32.3 -23:11:14 16.5        81
Positions are for J2000

Event circumstances last updated at 2023/11/04 04:12:31 UT

Marc W. Buie, Southwest Research Institute

RECON