RECON: TNO occultation with 307251

Event between (307251) 02KW14 and star GA0600:33413099 with event index number of 2777103

Geocentric closest approach at 2029/05/31 06:56:19 UTC

J2000 position of star is 17:56:36.8 -28:18:20
Equinox of date position of star is 17:58:09.7 -28:18:26
Stellar brightness G=16.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 28 degrees from the moon. Moon is 85% 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 23.2 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 1140 seconds.
The 1-sigma cross-track error in the shadow position is 4742 km.
The sky-plane scale is 31388.5 km/arcsec.

The object has an absolute magnitude Hv=5.5
Diameter=457.1 km assuming a 5% albedo -- 20.6 sec chord
Diameter=186.6 km assuming a 30% albedo -- 8.4 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 307251, (2029/05/31 06:56UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:13.0 -26:29:40  0.9 19.43  47
34Ups Sco      17:32:46.0 -37:18:58  2.7 10.50  36
3 Sgr          17:49:24.8 -27:50:21  4.2  2.05  30
PPM 267596     18:00:31.1 -28:45:34  6.6  0.64  27
PPM 267512     17:57:25.9 -28:11:18  9.1  0.26  28
307251         17:58:28.4 -28:18:27 16.4        27
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 24.9 km RECON observability=0.1 and success probability=0.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 06:57:06 -15.9 AT Up 7.4 160.8 Really Low 06:42:06 - 07:12:06 5946
Kamloops 06:57:46 -16.1 AT Up 4.9 148.7 Really Low 06:42:46 - 07:12:46 5738
Kelowna 06:57:46 -17.0 AT Up 5.8 149.4 Really Low 06:42:46 - 07:12:46 5731
Peachland 06:57:46 -17.1 AT Up 5.8 149.1 Really Low 06:42:46 - 07:12:46 5724
Summerland 06:57:47 -17.3 AT Up 6.0 149.2 Really Low 06:42:47 - 07:12:47 5721
Penticton 06:57:46 -17.3 AT Up 6.1 149.3 Really Low 06:42:46 - 07:12:46 5721
Oliver 06:57:47 -17.7 AT Up 6.4 149.3 Really Low 06:42:47 - 07:12:47 5711
Anarchist Mountain Observatory 06:57:47 -17.9 AT Up 6.6 149.4 Really Low 06:42:47 - 07:12:47 5710
Okanogan 06:57:49 -18.5 Dark Up 7.1 149.2 Really Low 06:42:49 - 07:12:49 5687
Brewster 06:57:51 -18.7 Dark Up 7.3 149.0 Really Low 06:42:51 - 07:12:51 5675
Manson/Chelan 06:57:52 -18.8 Dark Up 7.3 148.7 Really Low 06:42:52 - 07:12:52 5663
Wenatchee 06:57:53 -19.3 Dark Up 7.7 148.6 Really Low 06:42:53 - 07:12:53 5645
Ellensburg 06:57:55 -19.6 Dark Up 7.9 148.4 Really Low 06:42:55 - 07:12:55 5628
Victoria 06:57:58 -17.6 AT Down 5.6 146.2 Really Low 06:42:58 - 07:12:58 5624
PNWRO 06:57:52 -20.9 Dark Up 9.4 149.6 Really Low 06:42:52 - 07:12:52 5623
Yakima 06:57:56 -20.0 Dark Up 8.3 148.3 Really Low 06:42:56 - 07:12:56 5614
Toppenish/White Swan 06:57:56 -20.3 Dark Up 8.5 148.4 Really Low 06:42:56 - 07:12:56 5610
Dunrhomin 06:57:19 -27.8 Dark Up 18.7 160.6 Really Low 06:42:19 - 07:12:19 5594
Nikitin 06:57:20 -28.0 Dark Up 18.9 160.6 Really Low 06:42:20 - 07:12:20 5586
CU-SBO 06:57:20 -28.0 Dark Up 18.9 160.5 Really Low 06:42:20 - 07:12:20 5583
The Dalles 06:57:59 -20.9 Dark Up 8.9 147.8 Really Low 06:42:59 - 07:12:59 5569
Maupin 06:58:00 -21.3 Dark Up 9.3 147.8 Really Low 06:43:00 - 07:13:00 5556
Sisters 06:58:03 -22.0 Dark Up 9.9 147.3 Really Low 06:43:03 - 07:13:03 5515
Bend 06:58:03 -22.3 Dark Up 10.2 147.5 Really Low 06:43:03 - 07:13:03 5511
Oregon Observatory 06:58:04 -22.5 Dark Up 10.2 147.4 Really Low 06:43:04 - 07:13:04 5502
Chiloquin 06:58:08 -23.6 Dark Up 11.2 146.9 Really Low 06:43:08 - 07:13:08 5442
Cedarville 06:58:05 -25.0 Dark Up 12.7 148.2 Really Low 06:43:05 - 07:13:05 5432
Klamath Falls 06:58:08 -24.0 Dark Up 11.5 147.0 Really Low 06:43:08 - 07:13:08 5429
Fall River/Burney 06:58:09 -25.2 Dark Up 12.7 147.2 Really Low 06:43:09 - 07:13:09 5387
Gimple 06:58:10 -26.2 Dark Up 13.6 147.5 Really Low 06:43:10 - 07:13:10 5358
Greenville 06:58:09 -26.2 Dark Up 13.6 147.4 Really Low 06:43:09 - 07:13:09 5356
Reno 06:58:08 -27.0 Dark Up 14.6 148.2 Really Low 06:43:08 - 07:13:08 5352
Portola 06:58:09 -26.6 Dark Up 14.1 147.7 Really Low 06:43:09 - 07:13:09 5351
Quincy 06:58:10 -26.4 Dark Up 13.8 147.4 Really Low 06:43:10 - 07:13:10 5347
Yerington 06:58:07 -27.6 Dark Up 15.3 148.7 Really Low 06:43:07 - 07:13:07 5339
Carson City 06:58:08 -27.3 Dark Up 14.9 148.2 Really Low 06:43:08 - 07:13:08 5336
Hawthorne 06:58:06 -28.2 Dark Up 15.9 149.0 Really Low 06:43:06 - 07:13:06 5327
Gardnerville 06:58:09 -27.6 Dark Up 15.1 148.2 Really Low 06:43:09 - 07:13:09 5325
Lee Vining 06:58:09 -28.6 Dark Up 16.2 148.6 Really Low 06:43:09 - 07:13:09 5292
Beatty 06:58:03 -30.1 Dark Up 18.1 150.3 Really Low 06:43:03 - 07:13:03 5283
Bishop 06:58:07 -29.4 Dark Up 17.0 149.1 Really Low 06:43:07 - 07:13:07 5276
Patrick 06:57:56 -32.0 Dark Up 20.5 152.5 Low 06:42:56 - 07:12:56 5258
Laughlin/Bullhead City 06:57:58 -32.2 Dark Up 20.4 151.8 Low 06:42:58 - 07:12:58 5233
Lake Havasu City 06:57:58 -32.9 Dark Up 21.1 151.9 Low 06:42:58 - 07:12:58 5203
George/Scottsdale 06:57:51 -33.9 Dark Up 22.7 153.9 Low 06:42:51 - 07:12:51 5201
Idyllwild 06:58:08 -33.2 Dark Up 20.8 149.8 Low 06:43:08 - 07:13:08 5121
Calipatria 06:58:05 -34.0 Dark Up 21.9 150.7 Low 06:43:05 - 07:13:05 5108
Wildwood 06:58:13 -32.5 Dark Up 19.7 148.3 Really Low 06:43:13 - 07:13:13 5103
Yuma 06:58:02 -34.6 Dark Up 22.6 151.3 Low 06:43:02 - 07:13:02 5100

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, (2029/05/31 06:56UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 19.43  47
34Ups Sco      17:30:45.8 -37:17:46  2.7 10.50  36
3 Sgr          17:47:33.6 -27:49:51  4.2  2.05  30
PPM 267596     17:58:39.0 -28:45:33  6.6  0.64  27
PPM 267512     17:55:34.4 -28:11:09  9.1  0.26  28
307251         17:56:36.8 -28:18:20 16.4        28
Positions are for J2000

Event circumstances last updated at 2024/06/27 21:00:25 UT

Marc W. Buie, Southwest Research Institute

RECON