RECON: TNO occultation with 470308

Event between (470308) 07JH43 and star GA0620:12014160 with event index number of 2219522

Geocentric closest approach at 2024/05/24 06:35:31 UTC

J2000 position of star is 17:01:58.0 -26:49:23
Equinox of date position of star is 17:03:27.9 -26:51:23
Stellar brightness G=14.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 5 degrees from the moon. Moon is 99% illuminated.
Apparent brightness V=20.9

[RECON map]
Object is 40.5 AU from the Sun and 39.5 AU from the Earth.
Apparent velocity is 24.2 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 98 seconds.
The 1-sigma cross-track error in the shadow position is 1691 km.
The sky-plane scale is 28680.8 km/arcsec.

The object has an absolute magnitude Hv=4.8
Diameter=758.6 km assuming a 5% albedo -- 27.1 sec chord
Diameter=309.7 km assuming a 30% albedo -- 11.1 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 470308, (2024/05/24 06:36UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.4 -26:29:02  0.9  7.29   2
23Tau Sco      16:37:24.3 -28:15:52  2.8  5.95   2
PPM 266416     17:08:24.1 -26:32:38  6.3  1.14   6
PPM 266293     17:03:15.3 -26:59:07  8.5  0.14   5
470308         17:03:29.0 -26:51:24 14.5         5
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 10.9 km RECON observability=0.2 and success probability=5.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 06:36:32 -16.9 AT Up 9.2 162.1 Really Low 06:27:55 - 06:45:10 -1342
Kamloops 06:37:11 -16.3 AT Up 6.8 149.7 Really Low 06:28:33 - 06:45:48 -1604
Kelowna 06:37:10 -17.2 AT Up 7.8 150.4 Really Low 06:28:33 - 06:45:48 -1613
Peachland 06:37:11 -17.3 AT Up 7.8 150.1 Really Low 06:28:34 - 06:45:49 -1622
Summerland 06:37:11 -17.4 AT Up 8.0 150.2 Really Low 06:28:34 - 06:45:49 -1625
Penticton 06:37:11 -17.5 AT Up 8.1 150.3 Really Low 06:28:34 - 06:45:49 -1625
Oliver 06:37:12 -17.8 AT Up 8.4 150.2 Really Low 06:28:34 - 06:45:49 -1637
Anarchist Mountain Observatory 06:37:12 -18.0 Dark Up 8.6 150.4 Really Low 06:28:34 - 06:45:49 -1639
Okanogan 06:37:13 -18.6 Dark Up 9.1 150.2 Really Low 06:28:36 - 06:45:51 -1666
Brewster 06:37:14 -18.8 Dark Up 9.2 150.0 Really Low 06:28:37 - 06:45:52 -1680
Manson/Chelan 06:37:16 -18.9 Dark Up 9.3 149.6 Really Low 06:28:38 - 06:45:53 -1694
Wenatchee 06:37:17 -19.3 Dark Up 9.7 149.5 Really Low 06:28:40 - 06:45:55 -1715
Ellensburg 06:37:18 -19.7 Dark Up 9.9 149.3 Really Low 06:28:41 - 06:45:56 -1735
Victoria 06:37:23 -17.6 AT Up 7.6 147.0 Really Low 06:28:45 - 06:46:00 -1739
PNWRO 06:37:16 -21.0 Dark Up 11.4 150.5 Really Low 06:28:38 - 06:45:53 -1740
Dunrhomin 06:36:41 -28.7 Dark Up 20.6 161.8 Low 06:28:03 - 06:45:18 -1746
Yakima 06:37:19 -20.1 Dark Up 10.3 149.2 Really Low 06:28:42 - 06:45:57 -1752
Nikitin 06:36:41 -28.9 Dark Up 20.8 161.8 Low 06:28:03 - 06:45:18 -1754
Toppenish/White Swan 06:37:19 -20.3 Dark Up 10.5 149.3 Really Low 06:28:42 - 06:45:57 -1757
CU-SBO 06:36:41 -28.9 Dark Up 20.8 161.7 Low 06:28:03 - 06:45:18 -1759
The Dalles 06:37:23 -20.8 Dark Up 10.9 148.6 Really Low 06:28:45 - 06:46:00 -1804
Maupin 06:37:23 -21.3 Dark Up 11.3 148.6 Really Low 06:28:46 - 06:46:01 -1819
Sisters 06:37:26 -21.9 Dark Up 11.9 148.2 Really Low 06:28:49 - 06:46:04 -1866
Bend 06:37:26 -22.2 Dark Up 12.2 148.3 Really Low 06:28:49 - 06:46:04 -1871
Oregon Observatory 06:37:27 -22.4 Dark Up 12.3 148.2 Really Low 06:28:49 - 06:46:04 -1881
Chiloquin 06:37:30 -23.5 Dark Up 13.2 147.7 Really Low 06:28:53 - 06:46:08 -1950
Cedarville 06:37:27 -24.9 Dark Up 14.8 149.0 Really Low 06:28:50 - 06:46:05 -1960
Klamath Falls 06:37:30 -23.8 Dark Up 13.6 147.8 Really Low 06:28:53 - 06:46:08 -1964
Fall River/Burney 06:37:32 -25.0 Dark Up 14.7 147.9 Really Low 06:28:54 - 06:46:09 -2011
Gimple 06:37:31 -26.0 Dark Up 15.7 148.2 Really Low 06:28:54 - 06:46:09 -2044
Greenville 06:37:32 -26.0 Dark Up 15.7 148.2 Really Low 06:28:54 - 06:46:09 -2046
Reno 06:37:30 -26.9 Dark Up 16.6 149.0 Really Low 06:28:52 - 06:46:07 -2049
Portola 06:37:31 -26.4 Dark Up 16.1 148.5 Really Low 06:28:53 - 06:46:08 -2051
Quincy 06:37:32 -26.2 Dark Up 15.8 148.1 Really Low 06:28:55 - 06:46:10 -2056
Yerington 06:37:28 -27.5 Dark Up 17.4 149.5 Really Low 06:28:51 - 06:46:06 -2063
Carson City 06:37:30 -27.2 Dark Up 16.9 149.0 Really Low 06:28:52 - 06:46:07 -2067
Hawthorne 06:37:28 -28.1 Dark Up 18.0 149.8 Really Low 06:28:50 - 06:46:05 -2075
Gardnerville 06:37:30 -27.4 Dark Up 17.2 149.0 Really Low 06:28:53 - 06:46:08 -2078
Lee Vining 06:37:30 -28.5 Dark Up 18.3 149.3 Really Low 06:28:52 - 06:46:07 -2115
Beatty 06:37:24 -30.1 Dark Up 20.1 151.1 Low 06:28:47 - 06:46:02 -2119
Bishop 06:37:29 -29.3 Dark Up 19.1 149.8 Really Low 06:28:51 - 06:46:06 -2131
Patrick 06:37:17 -32.2 Dark Up 22.5 153.3 Low 06:28:40 - 06:45:55 -2140
Laughlin/Bullhead City 06:37:19 -32.3 Dark Up 22.5 152.7 Low 06:28:42 - 06:45:57 -2169
George/Scottsdale 06:37:12 -34.3 Dark Up 24.7 154.8 Low 06:28:35 - 06:45:50 -2195
Lake Havasu City 06:37:19 -33.0 Dark Up 23.1 152.8 Low 06:28:42 - 06:45:57 -2201
Idyllwild 06:37:28 -33.2 Dark Up 22.9 150.6 Low 06:28:51 - 06:46:06 -2296
Calipatria 06:37:25 -34.0 Dark Up 23.9 151.5 Low 06:28:48 - 06:46:03 -2307
Yuma 06:37:23 -34.7 Dark Up 24.6 152.1 Low 06:28:45 - 06:46:00 -2313
Wildwood 06:37:34 -32.3 Dark Up 21.8 149.1 Low 06:28:56 - 06:46:11 -2320

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 470308, (2024/05/24 06:36UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  7.29   2
23Tau Sco      16:35:52.9 -28:12:58  2.8  5.95   2
PPM 266416     17:06:53.2 -26:30:47  6.3  1.14   6
PPM 266293     17:01:44.2 -26:57:06  8.5  0.14   5
470308         17:01:58.0 -26:49:23 14.5         5
Positions are for J2000

Event circumstances last updated at 2024/02/12 04:23:58 UT

Marc W. Buie, Southwest Research Institute

RECON