RECON: TNO occultation with 47932

Event between (47932) 00GN171 and star GA0580:17510279 with event index number of 2314625

Geocentric closest approach at 2024/05/18 10:14:19 UTC

J2000 position of star is 17:09:13.2 -31:50:09
Equinox of date position of star is 17:10:46.9 -31:51:54
Stellar brightness G=15.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 80 degrees from the moon. Moon is 77% illuminated.
Apparent brightness V=21.0

[RECON map]
Object is 29.6 AU from the Sun and 28.7 AU from the Earth.
Apparent velocity is 21.4 km/sec on the sky relative to the star, or, 3.7 arcsec/hr.
The 1-sigma error in the time of the event is 233 seconds.
The 1-sigma cross-track error in the shadow position is 1516 km.
The sky-plane scale is 20815.3 km/arcsec.

The object has an absolute magnitude Hv=6.3
Diameter=346.7 km assuming a 5% albedo -- 15.6 sec chord
Diameter=141.6 km assuming a 30% albedo -- 6.4 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 47932, (2024/05/18 10:14UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.4 -26:29:02  0.9 10.23  70
26Eps Sco      16:51:45.0 -34:20:06  2.3  4.69  76
PPM 296042     17:14:33.8 -32:27:56  6.2  1.00  80
PPM 296006     17:12:46.3 -32:13:14  8.5  0.55  80
PPM 295975     17:10:50.1 -32:02:47  9.7  0.18  80
47932          17:10:48.0 -31:51:55 15.8        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 3.9 sigma about the mid-time.
The median site spacing is 11.8 km RECON observability=0.2 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 10:13:33 -13.6 AT Up 6.8 190.5 Really Low 09:58:33 - 10:28:33 8091
Victoria 10:13:41 -16.4 AT Up 9.2 188.0 Really Low 09:58:41 - 10:28:41 8079
Peachland 10:13:31 -14.1 AT Up 7.6 191.0 Really Low 09:58:31 - 10:28:31 8070
Kelowna 10:13:30 -13.9 AT Up 7.5 191.3 Really Low 09:58:30 - 10:28:30 8069
Summerland 10:13:30 -14.2 AT Up 7.7 191.1 Really Low 09:58:30 - 10:28:30 8066
Penticton 10:13:30 -14.2 AT Up 7.8 191.2 Really Low 09:58:30 - 10:28:30 8064
Oliver 10:13:30 -14.5 AT Up 8.1 191.2 Really Low 09:58:30 - 10:28:30 8057
Anarchist Mountain Observatory 10:13:29 -14.6 AT Up 8.3 191.4 Really Low 09:58:29 - 10:28:29 8053
Okanogan 10:13:29 -15.2 AT Up 8.9 191.2 Really Low 09:58:29 - 10:28:29 8041
Brewster 10:13:29 -15.5 AT Up 9.2 191.1 Really Low 09:58:29 - 10:28:29 8038
Manson/Chelan 10:13:30 -15.8 AT Up 9.5 190.7 Really Low 09:58:30 - 10:28:30 8037
Wenatchee 10:13:31 -16.3 AT Up 10.0 190.6 Really Low 09:58:31 - 10:28:31 8029
Ellensburg 10:13:31 -16.7 AT Up 10.4 190.4 Really Low 09:58:31 - 10:28:31 8022
Yakima 10:13:31 -17.1 AT Up 10.8 190.4 Really Low 09:58:31 - 10:28:31 8013
Toppenish/White Swan 10:13:30 -17.2 AT Up 11.0 190.6 Really Low 09:58:30 - 10:28:30 8006
The Dalles 10:13:32 -18.1 Dark Up 11.9 190.0 Really Low 09:58:32 - 10:28:32 7994
Maupin 10:13:32 -18.4 Dark Up 12.3 190.1 Really Low 09:58:32 - 10:28:32 7983
PNWRO 10:13:25 -16.9 AT Up 11.2 191.9 Really Low 09:58:25 - 10:28:25 7981
Sisters 10:13:32 -19.4 Dark Up 13.2 189.7 Really Low 09:58:32 - 10:28:32 7964
Bend 10:13:32 -19.5 Dark Up 13.4 189.9 Really Low 09:58:32 - 10:28:32 7955
Oregon Observatory 10:13:32 -19.7 Dark Up 13.6 189.8 Really Low 09:58:32 - 10:28:32 7952
Sleaford 10:12:52 -6.9 NT Down 2.9 202.4 Really Low 09:57:52 - 10:27:52 7920
Chiloquin 10:13:33 -20.9 Dark Up 14.9 189.5 Really Low 09:58:33 - 10:28:33 7917
Klamath Falls 10:13:32 -21.2 Dark Up 15.3 189.6 Really Low 09:58:32 - 10:28:32 7906
Cedarville 10:13:26 -21.1 Dark Up 15.7 191.0 Really Low 09:58:26 - 10:28:26 7866
Fall River/Burney 10:13:30 -22.0 Dark Up 16.4 190.0 Really Low 09:58:30 - 10:28:30 7863
Greenville 10:13:28 -22.6 Dark Up 17.2 190.4 Really Low 09:58:28 - 10:28:28 7827
Gimple 10:13:28 -22.6 Dark Up 17.2 190.5 Really Low 09:58:28 - 10:28:28 7826
Quincy 10:13:28 -22.8 Dark Up 17.4 190.4 Really Low 09:58:28 - 10:28:28 7820
Portola 10:13:26 -22.7 Dark Up 17.5 190.8 Really Low 09:58:26 - 10:28:26 7811
Reno 10:13:23 -22.6 Dark Up 17.6 191.4 Really Low 09:58:23 - 10:28:23 7793
Carson City 10:13:23 -22.9 Dark Up 18.0 191.4 Really Low 09:58:23 - 10:28:23 7780
Gardnerville 10:13:23 -23.1 Dark Up 18.2 191.5 Really Low 09:58:23 - 10:28:23 7770
Yerington 10:13:20 -22.8 Dark Up 18.1 192.0 Really Low 09:58:20 - 10:28:20 7765
Hawthorne 10:13:18 -22.9 Dark Up 18.4 192.5 Really Low 09:58:18 - 10:28:18 7740
Lee Vining 10:13:20 -23.6 Dark Up 19.1 192.1 Really Low 09:58:20 - 10:28:20 7725
Bishop 10:13:16 -23.7 Dark Down 19.5 192.8 Really Low 09:58:16 - 10:28:16 7691
Beatty 10:13:09 -23.3 Dark Down 19.7 194.2 Really Low 09:58:09 - 10:28:09 7649
Dunrhomin 10:12:31 -14.8 AT Down 13.6 203.6 Really Low 09:57:31 - 10:27:31 7571
Nikitin 10:12:31 -14.9 AT Down 13.8 203.6 Really Low 09:57:31 - 10:27:31 7565
CU-SBO 10:12:30 -15.0 AT Down 13.9 203.5 Really Low 09:57:30 - 10:27:30 7564
Wildwood 10:13:16 -26.4 Dark Up 22.8 192.9 Low 09:58:16 - 10:28:16 7551
Laughlin/Bullhead City 10:13:00 -23.5 Dark Down 20.9 196.3 Low 09:58:00 - 10:28:00 7539
Patrick 10:12:57 -23.0 Dark Down 20.5 196.9 Low 09:57:57 - 10:27:57 7539
Idyllwild 10:13:07 -25.7 Dark Down 22.7 194.6 Low 09:58:07 - 10:28:07 7507
Lake Havasu City 10:12:58 -23.9 Dark Down 21.5 196.6 Low 09:57:58 - 10:27:58 7504
Calipatria 10:13:02 -25.6 Dark Down 23.1 195.7 Low 09:58:02 - 10:28:02 7458
George/Scottsdale 10:12:48 -23.1 Dark Down 21.6 198.8 Low 09:57:48 - 10:27:48 7423
Yuma 10:12:58 -25.4 Dark Down 23.3 196.5 Low 09:57:58 - 10:27:58 7422

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 47932, (2024/05/18 10:14UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 10.23  70
26Eps Sco      16:50:08.8 -34:17:41  2.3  4.69  76
PPM 296042     17:12:58.5 -32:26:18  6.2  1.00  80
PPM 296006     17:11:11.3 -32:11:33  8.5  0.55  80
PPM 295975     17:09:15.2 -32:01:02  9.7  0.18  80
47932          17:09:13.2 -31:50:09 15.8        80
Positions are for J2000

Event circumstances last updated at 2024/02/12 04:23:09 UT

Marc W. Buie, Southwest Research Institute

RECON