RECON: TNO occultation with 470309

Event between (470309) 07JK43 and star GA1100:08795213 with event index number of 2818905

Geocentric closest approach at 2029/08/07 10:29:58 UTC

J2000 position of star is 19:19:55.3 +21:17:04
Equinox of date position of star is 19:20:58.7 +21:19:53
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 136 degrees from the moon. Moon is 8% illuminated.
Apparent brightness V=21.9

[RECON map]
Object is 28.2 AU from the Sun and 27.5 AU from the Earth.
Apparent velocity is 22.2 km/sec on the sky relative to the star, or, 4.0 arcsec/hr.
The 1-sigma error in the time of the event is 102 seconds.
The 1-sigma cross-track error in the shadow position is 1679 km.
The sky-plane scale is 19914.9 km/arcsec.

The object has an absolute magnitude Hv=7.3
Diameter=209.9 km assuming a 5% albedo -- 9.4 sec chord
Diameter=85.7 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is CENTAURS
 
 
 
 
 
 

Star training set for 470309, (2029/08/07 10:30UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:56.4 +38:48:44  0.0 19.78 119
Tarazed        19:47:40.0 +10:41:15  2.7 12.40 144
1 Vul          19:17:29.4 +21:26:40  4.8  0.87 136
PPM 108828     19:22:34.1 +21:01:14  7.2  0.45 136
PPM 108782     19:21:17.2 +21:36:03  9.7  0.26 136
470309         19:21:11.9 +21:20:28 16.8       136
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 33.2 km RECON observability=1.0 and success probability=31.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:26:04 -9.5 NT Up 24.6 273.5 Low 10:17:04 - 10:35:04 34
Kamloops 10:26:22 -16.4 AT Up 33.6 262.9 Up 10:17:22 - 10:35:22 -284
Kelowna 10:26:19 -16.8 AT Up 33.1 264.1 Up 10:17:19 - 10:35:19 -361
Peachland 10:26:19 -17.0 AT Up 33.4 264.0 Up 10:17:19 - 10:35:19 -376
Summerland 10:26:19 -17.1 AT Up 33.3 264.2 Up 10:17:19 - 10:35:19 -390
Penticton 10:26:18 -17.1 AT Up 33.2 264.3 Up 10:17:18 - 10:35:18 -396
Oliver 10:26:18 -17.4 AT Up 33.3 264.5 Up 10:17:18 - 10:35:18 -433
Anarchist Mountain Observatory 10:26:17 -17.4 AT Up 33.2 264.8 Up 10:17:17 - 10:35:17 -449
Okanogan 10:26:17 -18.0 Dark Up 33.4 265.0 Up 10:17:17 - 10:35:17 -519
Victoria 10:26:24 -19.3 Dark Up 35.9 261.9 Up 10:17:24 - 10:35:24 -532
Brewster 10:26:16 -18.3 Dark Up 33.5 265.0 Up 10:17:16 - 10:35:16 -549
Manson/Chelan 10:26:16 -18.6 Dark Up 33.8 264.9 Up 10:17:16 - 10:35:16 -574
Wenatchee 10:26:17 -19.1 Dark Up 34.0 265.1 Up 10:17:17 - 10:35:17 -626
Ellensburg 10:26:16 -19.5 Dark Up 34.1 265.2 Up 10:17:16 - 10:35:16 -671
Yakima 10:26:16 -19.9 Dark Up 34.2 265.4 Up 10:17:16 - 10:35:16 -715
Toppenish/White Swan 10:26:15 -20.0 Dark Up 34.1 265.7 Up 10:17:15 - 10:35:15 -736
PNWRO 10:26:12 -19.7 Dark Up 33.1 267.1 Up 10:17:12 - 10:35:12 -762
The Dalles 10:26:15 -20.9 Dark Up 34.7 265.6 Up 10:17:15 - 10:35:15 -826
Maupin 10:26:15 -21.2 Dark Up 34.7 266.0 Up 10:17:15 - 10:35:15 -870
Sisters 10:26:14 -22.1 Dark Up 35.1 266.3 Up 10:17:14 - 10:35:14 -968
Bend 10:26:14 -22.2 Dark Up 34.9 266.6 Up 10:17:14 - 10:35:14 -991
Oregon Observatory 10:26:14 -22.4 Dark Up 35.0 266.6 Up 10:17:14 - 10:35:14 -1011
Chiloquin 10:26:13 -23.7 Dark Up 35.4 267.3 Up 10:17:13 - 10:35:13 -1156
Dunrhomin 10:25:41 -17.0 AT Up 22.9 279.2 Low 10:16:41 - 10:34:41 -1166
Nikitin 10:25:41 -17.1 AT Up 22.8 279.2 Low 10:16:41 - 10:34:41 -1186
Klamath Falls 10:26:13 -23.9 Dark Up 35.3 267.6 Up 10:17:13 - 10:35:13 -1193
CU-SBO 10:25:42 -17.2 AT Up 22.9 279.2 Low 10:16:42 - 10:34:42 -1194
Cedarville 10:26:08 -23.8 Dark Up 34.2 269.1 Up 10:17:08 - 10:35:08 -1254
Fall River/Burney 10:26:10 -24.7 Dark Down 35.1 268.7 Up 10:17:10 - 10:35:10 -1318
Gimple 10:26:08 -25.2 Dark Down 34.7 269.6 Up 10:17:08 - 10:35:08 -1412
Greenville 10:26:09 -25.3 Dark Down 34.8 269.6 Up 10:17:09 - 10:35:09 -1412
Quincy 10:26:08 -25.4 Dark Down 34.8 269.7 Up 10:17:08 - 10:35:08 -1434
Portola 10:26:07 -25.3 Dark Down 34.4 270.1 Up 10:17:07 - 10:35:07 -1443
Reno 10:26:06 -25.2 Dark Down 33.9 270.7 Up 10:17:06 - 10:35:06 -1466
Carson City 10:26:05 -25.5 Dark Down 33.9 271.0 Up 10:17:05 - 10:35:05 -1505
Yerington 10:26:04 -25.3 Dark Up 33.4 271.5 Up 10:17:04 - 10:35:04 -1519
Gardnerville 10:26:05 -25.7 Dark Down 33.8 271.1 Up 10:17:05 - 10:35:05 -1531
Hawthorne 10:26:02 -25.4 Dark Up 33.0 272.1 Up 10:17:02 - 10:35:02 -1564
Lee Vining 10:26:02 -26.1 Dark Down 33.3 272.2 Up 10:17:02 - 10:35:02 -1631
Bishop 10:26:00 -26.2 Dark Down 32.7 273.0 Up 10:17:00 - 10:35:00 -1689
Beatty 10:25:57 -25.7 Dark Up 31.4 274.2 Up 10:16:57 - 10:34:57 -1719
Patrick 10:25:49 -25.3 Dark Up 29.0 276.6 Low 10:16:49 - 10:34:49 -1841
Laughlin/Bullhead City 10:25:51 -25.8 Dark Up 29.5 276.4 Low 10:16:51 - 10:34:51 -1878
Lake Havasu City 10:25:50 -26.2 Dark Up 29.2 276.9 Low 10:16:50 - 10:34:50 -1948
George/Scottsdale 10:25:45 -25.3 Dark Up 27.1 278.5 Low 10:16:45 - 10:34:45 -1993
Wildwood 10:25:58 -28.8 Dark Down 32.7 275.0 Up 10:16:58 - 10:34:58 -2049
Idyllwild 10:25:54 -28.1 Dark Down 31.1 276.1 Up 10:16:54 - 10:34:54 -2065
Calipatria 10:25:52 -27.9 Dark Down 30.1 277.1 Up 10:16:52 - 10:34:52 -2115
Yuma 10:25:49 -27.6 Dark Up 29.3 277.7 Low 10:16:49 - 10:34:49 -2149

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 470309, (2029/08/07 10:30UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:08  0.0 19.78 119
Tarazed        19:46:15.6 +10:36:48  2.7 12.40 144
1 Vul          19:16:13.0 +21:23:25  4.8  0.87 136
PPM 108828     19:21:17.3 +20:57:46  7.2  0.45 136
PPM 108782     19:20:00.9 +21:32:39  9.7  0.26 136
470309         19:19:55.3 +21:17:04 16.8       136
Positions are for J2000

Event circumstances last updated at 2024/06/27 21:04:53 UT

Marc W. Buie, Southwest Research Institute

RECON