RECON: TNO occultation with 307251

Event between (307251) 02KW14 and star GA0600:33636162 with event index number of 2777076

Geocentric closest approach at 2029/05/26 07:52:05 UTC

J2000 position of star is 17:57:00.2 -28:18:00
Equinox of date position of star is 17:58:33.2 -28:18:05
Stellar brightness G=15.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 44 degrees from the moon. Moon is 97% illuminated.
Apparent brightness V=22.0

[RECON map]
Object is 44.2 AU from the Sun and 43.3 AU from the Earth.
Apparent velocity is 22.3 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 1186 seconds.
The 1-sigma cross-track error in the shadow position is 5236 km.
The sky-plane scale is 31409.8 km/arcsec.

The object has an absolute magnitude Hv=5.5
Diameter=457.1 km assuming a 5% albedo -- 21.4 sec chord
Diameter=186.6 km assuming a 30% albedo -- 8.7 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 307251, (2029/05/26 07:52UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.9 -26:29:40  0.9 19.51  24
34Ups Sco      17:32:45.9 -37:18:58  2.7 10.54  39
3 Sgr          17:49:24.8 -27:50:21  4.2  2.14  42
PPM 267596     18:00:31.0 -28:45:34  6.6  0.58  44
PPM 267512     17:57:25.9 -28:11:18  9.1  0.34  44
307251         17:58:51.8 -28:18:05 15.6        44
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 0.8 sigma about the mid-time.
The median site spacing is 19.4 km RECON observability=0.3 and success probability=1.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 07:52:24 -15.9 AT Up 8.8 168.5 Really Low 07:37:24 - 08:07:24 7431
Kamloops 07:53:07 -18.1 Dark Up 7.5 156.1 Really Low 07:38:07 - 08:08:07 7308
Kelowna 07:53:06 -18.9 Dark Up 8.4 156.8 Really Low 07:38:06 - 08:08:06 7298
Peachland 07:53:07 -19.1 Dark Up 8.5 156.5 Really Low 07:38:07 - 08:08:07 7293
Summerland 07:53:08 -19.2 Dark Up 8.6 156.6 Really Low 07:38:08 - 08:08:08 7290
Penticton 07:53:07 -19.3 Dark Up 8.7 156.7 Really Low 07:38:07 - 08:08:07 7289
Oliver 07:53:08 -19.6 Dark Up 9.0 156.7 Really Low 07:38:08 - 08:08:08 7281
Anarchist Mountain Observatory 07:53:07 -19.8 Dark Up 9.2 156.8 Really Low 07:38:07 - 08:08:07 7279
Okanogan 07:53:10 -20.4 Dark Up 9.8 156.6 Really Low 07:38:10 - 08:08:10 7259
Brewster 07:53:10 -20.7 Dark Up 10.0 156.4 Really Low 07:38:10 - 08:08:10 7249
Manson/Chelan 07:53:12 -20.9 Dark Up 10.1 156.1 Really Low 07:38:12 - 08:08:12 7240
Wenatchee 07:53:13 -21.4 Dark Up 10.5 155.9 Really Low 07:38:13 - 08:08:13 7224
Victoria 07:53:14 -20.2 Dark Up 8.6 153.4 Really Low 07:38:14 - 08:08:14 7219
Ellensburg 07:53:14 -21.8 Dark Up 10.8 155.7 Really Low 07:38:14 - 08:08:14 7210
PNWRO 07:53:12 -22.8 Dark Up 12.1 157.0 Really Low 07:38:12 - 08:08:12 7198
Yakima 07:53:14 -22.2 Dark Up 11.1 155.7 Really Low 07:38:14 - 08:08:14 7197
Toppenish/White Swan 07:53:13 -22.4 Dark Up 11.4 155.8 Really Low 07:38:13 - 08:08:13 7193
The Dalles 07:53:14 -23.2 Dark Up 11.9 155.1 Really Low 07:38:14 - 08:08:14 7159
Maupin 07:53:14 -23.6 Dark Up 12.3 155.1 Really Low 07:38:14 - 08:08:14 7147
Sisters 07:53:14 -24.5 Dark Up 12.9 154.6 Really Low 07:38:14 - 08:08:14 7114
Bend 07:53:14 -24.7 Dark Up 13.2 154.8 Really Low 07:38:14 - 08:08:14 7109
Oregon Observatory 07:53:14 -24.9 Dark Up 13.3 154.7 Really Low 07:38:14 - 08:08:14 7101
Dunrhomin 07:52:32 -27.2 Dark Up 20.5 168.6 Low 07:37:32 - 08:07:32 7088
Nikitin 07:52:32 -27.4 Dark Up 20.7 168.6 Low 07:37:32 - 08:07:32 7081
CU-SBO 07:52:33 -27.5 Dark Up 20.8 168.5 Low 07:37:33 - 08:07:33 7078
Chiloquin 07:53:14 -26.2 Dark Up 14.4 154.2 Really Low 07:38:14 - 08:08:14 7051
Klamath Falls 07:53:14 -26.5 Dark Up 14.7 154.2 Really Low 07:38:14 - 08:08:14 7039
Cedarville 07:53:14 -27.3 Dark Up 15.9 155.5 Really Low 07:38:14 - 08:08:14 7029
Fall River/Burney 07:53:14 -27.7 Dark Up 15.9 154.4 Really Low 07:38:14 - 08:08:14 6998
Gimple 07:53:14 -28.6 Dark Up 16.9 154.7 Really Low 07:38:14 - 08:08:14 6967
Greenville 07:53:14 -28.6 Dark Up 16.9 154.7 Really Low 07:38:14 - 08:08:14 6966
Quincy 07:53:14 -28.8 Dark Up 17.1 154.6 Really Low 07:38:14 - 08:08:14 6958
Portola 07:53:14 -29.0 Dark Up 17.3 155.0 Really Low 07:38:14 - 08:08:14 6958
Reno 07:53:14 -29.3 Dark Up 17.8 155.6 Really Low 07:38:14 - 08:08:14 6953
Carson City 07:53:14 -29.6 Dark Up 18.1 155.5 Really Low 07:38:14 - 08:08:14 6939
Yerington 07:53:14 -29.8 Dark Up 18.5 156.0 Really Low 07:38:14 - 08:08:14 6936
Gardnerville 07:53:14 -29.9 Dark Up 18.3 155.5 Really Low 07:38:14 - 08:08:14 6929
Hawthorne 07:53:14 -30.3 Dark Up 19.1 156.4 Really Low 07:38:14 - 08:08:14 6921
Lee Vining 07:53:14 -30.8 Dark Up 19.4 155.9 Really Low 07:38:14 - 08:08:14 6893
Bishop 07:53:14 -31.4 Dark Up 20.2 156.5 Low 07:38:14 - 08:08:14 6872
Beatty 07:53:14 -31.9 Dark Up 21.2 157.9 Low 07:38:14 - 08:08:14 6866
Patrick 07:53:10 -33.2 Dark Up 23.4 160.2 Low 07:38:10 - 08:08:10 6822
Laughlin/Bullhead City 07:53:12 -33.5 Dark Up 23.4 159.6 Low 07:38:12 - 08:08:12 6803
Lake Havasu City 07:53:12 -34.1 Dark Up 24.1 159.7 Low 07:38:12 - 08:08:12 6771
George/Scottsdale 07:53:03 -34.7 Dark Up 25.5 161.8 Low 07:38:03 - 08:08:03 6753
Wildwood 07:53:14 -34.7 Dark Up 23.1 155.8 Low 07:38:14 - 08:08:14 6713
Idyllwild 07:53:14 -35.0 Dark Up 24.1 157.4 Low 07:38:14 - 08:08:14 6711
Calipatria 07:53:14 -35.6 Dark Up 25.0 158.4 Low 07:38:14 - 08:08:14 6689
Yuma 07:53:14 -35.9 Dark Up 25.7 159.1 Low 07:38:14 - 08:08:14 6674

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 307251, (2029/05/26 07:52UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 19.51  24
34Ups Sco      17:30:45.8 -37:17:46  2.7 10.54  39
3 Sgr          17:47:33.6 -27:49:51  4.2  2.14  42
PPM 267596     17:58:39.0 -28:45:33  6.6  0.58  44
PPM 267512     17:55:34.4 -28:11:09  9.1  0.34  44
307251         17:57:00.2 -28:18:00 15.6        44
Positions are for J2000

Event circumstances last updated at 2024/06/27 21:00:15 UT

Marc W. Buie, Southwest Research Institute

RECON