RECON: TNO occultation with 47932

Event between (47932) 00GN171 and star GA0560:27054534 with event index number of 2316995

Geocentric closest approach at 2028/05/06 09:39:15 UTC

J2000 position of star is 17:56:45.0 -33:14:27
Equinox of date position of star is 17:58:21.7 -33:14:32
Stellar brightness G=11.5, use SENSEUP=8 with the MallinCam and and exposure time of 125 milli-seconds with the QHY174 camera.
Star is 75 degrees from the moon. Moon is 92% illuminated.
Apparent brightness V=21.2

[RECON map]
Object is 30.4 AU from the Sun and 29.7 AU from the Earth.
Apparent velocity is 15.8 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 557 seconds.
The 1-sigma cross-track error in the shadow position is 2844 km.
The sky-plane scale is 21532.3 km/arcsec.

The object has an absolute magnitude Hv=6.3
Diameter=346.7 km assuming a 5% albedo -- 21.1 sec chord
Diameter=141.6 km assuming a 30% albedo -- 8.6 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 47932, (2028/05/06 09:39UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:09.0 -26:29:32  0.9 20.08  56
Kap Sco        17:44:27.1 -39:02:30  2.4  6.46  72
PPM 297024     17:58:07.4 -32:28:37  6.5  0.77  75
PPM 297043     17:58:54.0 -33:24:36  8.2  0.18  75
47932          17:58:37.0 -33:14:32 11.5        75
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 1.6 sigma about the mid-time.
The median site spacing is 11.5 km RECON observability=0.2 and success probability=0.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 09:39:05 -19.0 Dark Up 4.2 163.3 Really Low 09:24:05 - 09:54:05 7126
Peachland 09:39:04 -19.7 Dark Up 5.2 163.8 Really Low 09:24:04 - 09:54:04 7117
Kelowna 09:39:02 -19.5 Dark Up 5.2 164.0 Really Low 09:24:02 - 09:54:02 7117
Summerland 09:39:04 -19.8 Dark Up 5.4 163.9 Really Low 09:24:04 - 09:54:04 7115
Penticton 09:39:04 -19.8 Dark Up 5.5 164.0 Really Low 09:24:04 - 09:54:04 7114
Victoria 09:39:23 -21.8 Dark Up 5.7 160.8 Really Low 09:24:23 - 09:54:23 7114
Oliver 09:39:04 -20.1 Dark Up 5.8 163.9 Really Low 09:24:04 - 09:54:04 7111
Anarchist Mountain Observatory 09:39:04 -20.2 Dark Up 6.0 164.1 Really Low 09:24:04 - 09:54:04 7109
Okanogan 09:39:06 -20.9 Dark Up 6.6 163.9 Really Low 09:24:06 - 09:54:06 7102
Brewster 09:39:08 -21.2 Dark Up 6.8 163.7 Really Low 09:24:08 - 09:54:08 7100
Manson/Chelan 09:39:09 -21.5 Dark Up 7.0 163.4 Really Low 09:24:09 - 09:54:09 7099
Wenatchee 09:39:11 -22.0 Dark Up 7.4 163.3 Really Low 09:24:11 - 09:54:11 7093
Ellensburg 09:39:13 -22.4 Dark Up 7.7 163.1 Really Low 09:24:13 - 09:54:13 7089
Yakima 09:39:14 -22.8 Dark Up 8.1 163.1 Really Low 09:24:14 - 09:54:14 7083
Toppenish/White Swan 09:39:14 -22.9 Dark Up 8.4 163.2 Really Low 09:24:14 - 09:54:14 7079
The Dalles 09:39:19 -23.8 Dark Up 8.9 162.5 Really Low 09:24:19 - 09:54:19 7069
PNWRO 09:39:08 -22.8 Dark Up 9.0 164.4 Really Low 09:24:08 - 09:54:08 7067
Maupin 09:39:20 -24.2 Dark Up 9.4 162.6 Really Low 09:24:20 - 09:54:20 7062
Sisters 09:39:24 -25.1 Dark Up 10.1 162.2 Really Low 09:24:24 - 09:54:24 7048
Bend 09:39:25 -25.2 Dark Up 10.4 162.4 Really Low 09:24:25 - 09:54:25 7043
Oregon Observatory 09:39:24 -25.4 Dark Up 10.5 162.2 Really Low 09:24:24 - 09:54:24 7040
Sleaford 09:38:04 -13.1 AT Up 4.5 175.1 Really Low 09:23:04 - 09:53:04 7018
Chiloquin 09:39:30 -26.8 Dark Up 11.7 161.8 Really Low 09:24:30 - 09:54:30 7014
Klamath Falls 09:39:30 -27.0 Dark Up 12.0 161.9 Really Low 09:24:30 - 09:54:30 7006
Cedarville 09:39:24 -27.1 Dark Up 13.1 163.1 Really Low 09:24:24 - 09:54:24 6984
Fall River/Burney 09:39:29 -28.0 Dark Up 13.2 162.1 Really Low 09:24:29 - 09:54:29 6976
Greenville 09:39:29 -28.6 Dark Up 14.2 162.4 Really Low 09:24:29 - 09:54:29 6951
Gimple 09:39:29 -28.6 Dark Up 14.2 162.5 Really Low 09:24:29 - 09:54:29 6950
Quincy 09:39:29 -28.8 Dark Up 14.4 162.4 Really Low 09:24:29 - 09:54:29 6945
Portola 09:39:26 -28.8 Dark Up 14.6 162.8 Really Low 09:24:26 - 09:54:26 6940
Reno 09:39:25 -28.8 Dark Up 15.0 163.3 Really Low 09:24:25 - 09:54:25 6930
Carson City 09:39:25 -29.1 Dark Up 15.4 163.3 Really Low 09:24:25 - 09:54:25 6920
Gardnerville 09:39:26 -29.3 Dark Up 15.6 163.3 Really Low 09:24:26 - 09:54:26 6912
Yerington 09:39:23 -29.0 Dark Up 15.7 163.8 Really Low 09:24:23 - 09:54:23 6911
Hawthorne 09:39:20 -29.2 Dark Up 16.3 164.2 Really Low 09:24:20 - 09:54:20 6894
Lee Vining 09:39:24 -29.9 Dark Up 16.7 163.8 Really Low 09:24:24 - 09:54:24 6880
Bishop 09:39:22 -30.1 Dark Up 17.4 164.3 Really Low 09:24:22 - 09:54:22 6857
Beatty 09:39:14 -29.8 Dark Up 18.2 165.6 Really Low 09:24:14 - 09:54:14 6830
Dunrhomin 09:38:09 -21.8 Dark Up 16.4 175.6 Really Low 09:23:09 - 09:53:09 6795
Nikitin 09:38:09 -22.0 Dark Up 16.5 175.6 Really Low 09:23:09 - 09:53:09 6790
CU-SBO 09:38:11 -22.1 Dark Up 16.6 175.5 Really Low 09:23:11 - 09:53:11 6790
Patrick 09:39:01 -29.8 Dark Up 20.2 168.0 Low 09:24:01 - 09:54:01 6753
Laughlin/Bullhead City 09:39:06 -30.3 Dark Up 20.3 167.4 Low 09:24:06 - 09:54:06 6750
Wildwood 09:39:29 -33.0 Dark Up 20.5 163.8 Low 09:24:29 - 09:54:29 6742
Lake Havasu City 09:39:04 -30.8 Dark Up 21.0 167.5 Low 09:24:04 - 09:54:04 6723
Idyllwild 09:39:20 -32.5 Dark Up 21.3 165.4 Low 09:24:20 - 09:54:20 6716
Calipatria 09:39:14 -32.4 Dark Up 22.1 166.4 Low 09:24:14 - 09:54:14 6680
George/Scottsdale 09:38:53 -30.2 Dark Up 22.2 169.6 Low 09:23:53 - 09:53:53 6666
Yuma 09:39:09 -32.4 Dark Up 22.7 167.1 Low 09:24:09 - 09:54:09 6655

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, (2028/05/06 09:39UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 20.08  56
Kap Sco        17:42:29.3 -39:01:49  2.4  6.46  72
PPM 297024     17:56:16.1 -32:28:30  6.5  0.77  75
PPM 297043     17:57:01.8 -33:24:30  8.2  0.18  75
47932          17:56:45.0 -33:14:27 11.5        75
Positions are for J2000

Event circumstances last updated at 2024/06/24 21:28:56 UT

Marc W. Buie, Southwest Research Institute

RECON