RECON: TNO occultation with 543377

Event between (543377) 14BF70 and star GA0560:19573360 with event index number of 2254197

Geocentric closest approach at 2028/05/13 10:50:46 UTC

J2000 position of star is 17:13:00.8 -32:23:25
Equinox of date position of star is 17:14:36.5 -32:25:03
Stellar brightness G=16.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 31 degrees from the moon. Moon is 77% illuminated.
Apparent brightness V=20.5

[RECON map]
Object is 12.3 AU from the Sun and 11.4 AU from the Earth.
Apparent velocity is 15.0 km/sec on the sky relative to the star, or, 6.5 arcsec/hr.
The 1-sigma error in the time of the event is 168 seconds.
The 1-sigma cross-track error in the shadow position is 477 km.
The sky-plane scale is 8291.4 km/arcsec.

The object has an absolute magnitude Hv=9.5
Diameter=75.5 km assuming a 5% albedo -- 5.1 sec chord
Diameter=30.8 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 543377, (2028/05/13 10:45UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:09.1 -26:29:32  0.9 11.20  40
26Eps Sco      16:52:00.7 -34:20:30  2.3  5.14  36
PPM 296042     17:14:49.4 -32:28:11  6.2  0.05  31
PPM 296041     17:14:45.1 -32:22:46  9.1  0.05  31
543377         17:14:51.6 -32:25:19 16.4        31
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 0.0 km RECON observability=0.1 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 10:49:49 -11.1 NT Up 5.8 193.2 Really Low 10:35:18 - 11:04:20 7173
Victoria 10:50:01 -14.0 AT Up 8.3 190.7 Really Low 10:35:30 - 11:04:32 7159
Peachland 10:49:46 -11.6 NT Up 6.6 193.7 Really Low 10:35:15 - 11:04:17 7155
Kelowna 10:49:45 -11.4 NT Up 6.5 193.9 Really Low 10:35:14 - 11:04:16 7154
Summerland 10:49:45 -11.6 NT Up 6.7 193.8 Really Low 10:35:14 - 11:04:16 7151
Penticton 10:49:45 -11.6 NT Up 6.8 193.8 Really Low 10:35:14 - 11:04:16 7149
Oliver 10:49:43 -11.9 NT Up 7.1 193.9 Really Low 10:35:12 - 11:04:14 7143
Anarchist Mountain Observatory 10:49:42 -12.0 NT Up 7.3 194.0 Really Low 10:35:11 - 11:04:13 7139
Okanogan 10:49:43 -12.5 AT Up 7.9 193.9 Really Low 10:35:12 - 11:04:14 7129
Brewster 10:49:43 -12.8 AT Up 8.2 193.7 Really Low 10:35:12 - 11:04:14 7125
Manson/Chelan 10:49:45 -13.1 AT Up 8.5 193.4 Really Low 10:35:14 - 11:04:16 7124
Wenatchee 10:49:45 -13.6 AT Up 9.0 193.3 Really Low 10:35:14 - 11:04:16 7116
Ellensburg 10:49:46 -14.0 AT Up 9.4 193.1 Really Low 10:35:15 - 11:04:17 7110
Yakima 10:49:45 -14.3 AT Up 9.8 193.1 Really Low 10:35:14 - 11:04:16 7101
Toppenish/White Swan 10:49:44 -14.4 AT Up 10.0 193.3 Really Low 10:35:13 - 11:04:15 7095
The Dalles 10:49:46 -15.3 AT Up 10.9 192.6 Really Low 10:35:15 - 11:04:17 7083
PNWRO 10:49:35 -14.0 AT Up 10.1 194.5 Really Low 10:35:04 - 11:04:06 7073
Maupin 10:49:45 -15.6 AT Up 11.3 192.7 Really Low 10:35:14 - 11:04:16 7072
Sisters 10:49:46 -16.5 AT Up 12.2 192.3 Really Low 10:35:15 - 11:04:17 7054
Bend 10:49:45 -16.5 AT Up 12.4 192.6 Really Low 10:35:14 - 11:04:16 7046
Oregon Observatory 10:49:45 -16.7 AT Up 12.6 192.5 Really Low 10:35:14 - 11:04:16 7043
Sleaford 10:48:53 -3.7 CT Up 1.6 204.8 Really Low 10:34:22 - 11:03:24 7024
Chiloquin 10:49:46 -17.9 AT Up 13.9 192.2 Really Low 10:35:15 - 11:04:17 7009
Klamath Falls 10:49:46 -18.1 Dark Up 14.3 192.3 Really Low 10:35:15 - 11:04:17 6998
Cedarville 10:49:36 -17.9 AT Up 14.7 193.7 Really Low 10:35:05 - 11:04:07 6964
Fall River/Burney 10:49:42 -18.8 Dark Up 15.4 192.7 Really Low 10:35:11 - 11:04:13 6958
Greenville 10:49:38 -19.3 Dark Up 16.2 193.1 Really Low 10:35:07 - 11:04:09 6925
Gimple 10:49:37 -19.2 Dark Up 16.2 193.2 Really Low 10:35:06 - 11:04:08 6924
Quincy 10:49:38 -19.4 Dark Up 16.4 193.1 Really Low 10:35:07 - 11:04:09 6918
Portola 10:49:35 -19.3 Dark Up 16.4 193.5 Really Low 10:35:04 - 11:04:06 6910
Reno 10:49:32 -19.1 Dark Up 16.5 194.1 Really Low 10:35:01 - 11:04:03 6894
Carson City 10:49:31 -19.4 Dark Up 16.9 194.1 Really Low 10:35:00 - 11:04:02 6881
Gardnerville 10:49:31 -19.5 Dark Up 17.1 194.2 Really Low 10:35:00 - 11:04:02 6872
Yerington 10:49:27 -19.2 Dark Up 17.0 194.7 Really Low 10:34:56 - 11:03:58 6868
Hawthorne 10:49:24 -19.2 Dark Up 17.3 195.1 Really Low 10:34:53 - 11:03:55 6846
Lee Vining 10:49:26 -19.9 Dark Up 17.9 194.8 Really Low 10:34:55 - 11:03:57 6830
Bishop 10:49:21 -19.9 Dark Up 18.4 195.4 Really Low 10:34:50 - 11:03:52 6799
Beatty 10:49:12 -19.3 Dark Up 18.5 196.9 Really Low 10:34:41 - 11:03:43 6761
Dunrhomin 10:48:18 -10.3 NT Up 12.1 205.9 Really Low 10:33:47 - 11:02:49 6703
Nikitin 10:48:18 -10.5 NT Up 12.3 205.9 Really Low 10:33:47 - 11:02:49 6696
CU-SBO 10:48:18 -10.5 NT Up 12.4 205.8 Really Low 10:33:47 - 11:02:49 6696
Wildwood 10:49:18 -22.3 Dark Up 21.6 195.6 Low 10:34:47 - 11:03:49 6663
Patrick 10:48:54 -18.6 Dark Up 19.2 199.4 Really Low 10:34:23 - 11:03:25 6660
Laughlin/Bullhead City 10:48:57 -19.2 Dark Up 19.6 198.9 Really Low 10:34:26 - 11:03:28 6659
Lake Havasu City 10:48:54 -19.5 Dark Up 20.2 199.1 Low 10:34:23 - 11:03:25 6626
Idyllwild 10:49:07 -21.5 Dark Up 21.5 197.2 Low 10:34:36 - 11:03:38 6625
Calipatria 10:48:59 -21.2 Dark Up 21.8 198.3 Low 10:34:28 - 11:03:30 6579
George/Scottsdale 10:48:39 -18.5 Dark Up 20.2 201.3 Low 10:34:08 - 11:03:10 6552
Yuma 10:48:54 -20.9 Dark Up 22.0 199.1 Low 10:34:23 - 11:03:25 6546

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 543377, (2028/05/13 10:45UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 11.20  40
26Eps Sco      16:50:08.8 -34:17:41  2.3  5.14  36
PPM 296042     17:12:58.5 -32:26:18  6.2  0.05  31
PPM 296041     17:12:54.3 -32:20:52  9.1  0.05  31
543377         17:13:00.8 -32:23:25 16.4        31
Positions are for J2000

Event circumstances last updated at 2024/06/24 21:29:02 UT

Marc W. Buie, Southwest Research Institute

RECON