RECON: TNO occultation with 556416

Event between (556416) 14OE394 and star GA0700:34205189 with event index number of 2511662

Geocentric closest approach at 2027/07/26 11:17:23 UTC

J2000 position of star is 20:29:17.5 -19:18:57
Equinox of date position of star is 20:30:41.9 -19:13:58
Stellar brightness G=13.3, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 86 degrees from the moon. Moon is 53% illuminated.
Apparent brightness V=21.3

[RECON map]
Object is 46.3 AU from the Sun and 45.3 AU from the Earth.
Apparent velocity is 25.0 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 103 seconds.
The 1-sigma cross-track error in the shadow position is 1866 km.
The sky-plane scale is 32861.7 km/arcsec.

The object has an absolute magnitude Hv=4.7
Diameter=660.7 km assuming a 5% albedo -- 27.6 sec chord
Diameter=269.7 km assuming a 30% albedo -- 11.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 556416, (2027/07/26 11:20UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:59:09.9 -29:28:31  1.2 35.13  61
38Zet Sgr      19:04:21.8 -29:50:18  2.7 22.30 107
10Pi Cap       20:28:53.7 -18:07:10  5.2  1.20  86
PPM 237446     20:28:38.1 -19:27:13  8.4  0.58  86
PPM 237504     20:31:18.8 -18:59:50  8.6  0.25  85
556416         20:30:52.5 -19:13:20 13.3        85
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 0.0 km RECON observability=0.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 11:14:42 -8.8 NT Up 9.7 222.5 Really Low 11:05:35 - 11:23:49 7892
Victoria 11:14:44 -11.7 NT Up 12.6 220.2 Really Low 11:05:37 - 11:23:51 7848
Peachland 11:14:39 -9.2 NT Up 10.1 223.1 Really Low 11:05:32 - 11:23:46 7820
Kelowna 11:14:38 -9.0 NT Up 9.9 223.4 Really Low 11:05:31 - 11:23:45 7818
Summerland 11:14:39 -9.3 NT Up 10.1 223.2 Really Low 11:05:32 - 11:23:46 7808
Penticton 11:14:39 -9.3 NT Up 10.1 223.3 Really Low 11:05:32 - 11:23:46 7801
Oliver 11:14:38 -9.5 NT Up 10.4 223.4 Really Low 11:05:31 - 11:23:45 7779
Anarchist Mountain Observatory 11:14:37 -9.5 NT Up 10.4 223.6 Really Low 11:05:30 - 11:23:44 7764
Okanogan 11:14:36 -10.1 NT Up 11.0 223.4 Really Low 11:05:29 - 11:23:43 7729
Brewster 11:14:36 -10.4 NT Up 11.3 223.3 Really Low 11:05:29 - 11:23:43 7718
Manson/Chelan 11:14:36 -10.7 NT Up 11.6 223.0 Really Low 11:05:29 - 11:23:43 7716
Wenatchee 11:14:36 -11.1 NT Up 12.0 223.0 Really Low 11:05:29 - 11:23:43 7691
Ellensburg 11:14:36 -11.5 NT Up 12.4 222.8 Really Low 11:05:29 - 11:23:43 7671
Yakima 11:14:35 -11.8 NT Up 12.8 222.9 Really Low 11:05:28 - 11:23:42 7645
Toppenish/White Swan 11:14:34 -11.9 NT Up 12.8 223.1 Really Low 11:05:27 - 11:23:41 7626
The Dalles 11:14:36 -12.8 AT Up 13.8 222.5 Really Low 11:05:29 - 11:23:43 7599
Sleaford 11:14:23 -1.0 CT Up 2.0 234.3 Really Low 11:05:16 - 11:23:30 7586
Maupin 11:14:34 -13.1 AT Up 14.0 222.7 Really Low 11:05:27 - 11:23:41 7568
PNWRO 11:14:31 -11.4 NT Up 12.4 224.3 Really Low 11:05:24 - 11:23:38 7557
Sisters 11:14:33 -14.0 AT Up 14.9 222.4 Really Low 11:05:26 - 11:23:40 7525
Bend 11:14:33 -14.0 AT Up 15.0 222.7 Really Low 11:05:26 - 11:23:40 7501
Oregon Observatory 11:14:32 -14.2 AT Up 15.2 222.6 Really Low 11:05:25 - 11:23:39 7494
Chiloquin 11:14:32 -15.4 AT Up 16.3 222.5 Really Low 11:05:25 - 11:23:39 7416
Klamath Falls 11:14:30 -15.6 AT Up 16.6 222.6 Really Low 11:05:23 - 11:23:37 7390
Fall River/Burney 11:14:29 -16.2 AT Up 17.2 223.2 Really Low 11:05:22 - 11:23:36 7294
Cedarville 11:14:27 -15.2 AT Up 16.3 224.1 Really Low 11:05:20 - 11:23:34 7290
Greenville 11:14:27 -16.6 AT Up 17.7 223.7 Really Low 11:05:20 - 11:23:34 7214
Gimple 11:14:26 -16.6 AT Up 17.6 223.8 Really Low 11:05:19 - 11:23:33 7212
Quincy 11:14:26 -16.8 AT Up 17.8 223.8 Really Low 11:05:19 - 11:23:33 7200
Portola 11:14:25 -16.6 AT Up 17.6 224.2 Really Low 11:05:18 - 11:23:32 7175
Reno 11:14:23 -16.4 AT Up 17.5 224.8 Really Low 11:05:16 - 11:23:30 7134
Carson City 11:14:22 -16.7 AT Up 17.7 224.9 Really Low 11:05:15 - 11:23:29 7106
Gardnerville 11:14:22 -16.8 AT Up 17.9 225.0 Really Low 11:05:15 - 11:23:29 7086
Yerington 11:14:21 -16.5 AT Up 17.5 225.4 Really Low 11:05:14 - 11:23:28 7070
Hawthorne 11:14:18 -16.5 AT Up 17.6 225.9 Really Low 11:05:11 - 11:23:25 7017
Lee Vining 11:14:20 -17.1 AT Up 18.2 225.7 Really Low 11:05:13 - 11:23:27 6991
Bishop 11:14:17 -17.1 AT Up 18.2 226.4 Really Low 11:05:10 - 11:23:24 6920
Beatty 11:14:12 -16.5 AT Up 17.6 227.8 Really Low 11:05:05 - 11:23:19 6827
Dunrhomin 11:13:57 -7.3 NT Up 8.5 235.7 Really Low 11:04:50 - 11:23:04 6698
Nikitin 11:13:57 -7.4 NT Up 8.6 235.7 Really Low 11:04:50 - 11:23:04 6684
CU-SBO 11:13:57 -7.5 NT Up 8.7 235.6 Really Low 11:04:50 - 11:23:04 6681
Wildwood 11:14:13 -19.4 Dark Up 20.6 227.1 Low 11:05:06 - 11:23:20 6669
Laughlin/Bullhead City 11:14:07 -16.2 AT Up 17.4 229.8 Really Low 11:05:00 - 11:23:14 6612
Patrick 11:14:05 -15.6 AT Up 16.8 230.3 Really Low 11:04:58 - 11:23:12 6606
Idyllwild 11:14:09 -18.5 Dark Up 19.7 228.6 Really Low 11:05:02 - 11:23:16 6572
Lake Havasu City 11:14:06 -16.5 AT Up 17.7 230.2 Really Low 11:04:59 - 11:23:13 6547
Calipatria 11:14:05 -18.1 Dark Up 19.4 229.6 Really Low 11:04:58 - 11:23:12 6478
Yuma 11:14:04 -17.8 AT Up 19.1 230.4 Really Low 11:04:57 - 11:23:11 6409
George/Scottsdale 11:13:59 -15.4 AT Up 16.6 232.1 Really Low 11:04:52 - 11:23:06 6394

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 556416, (2027/07/26 11:20UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 35.13  61
38Zet Sgr      19:02:36.7 -29:52:49  2.7 22.30 107
10Pi Cap       20:27:19.2 -18:12:43  5.2  1.20  86
PPM 237446     20:27:02.9 -19:32:45  8.4  0.58  86
PPM 237504     20:29:44.0 -19:05:27  8.6  0.25  85
556416         20:29:17.5 -19:18:57 13.3        86
Positions are for J2000

Event circumstances last updated at 2024/06/22 21:27:36 UT

Marc W. Buie, Southwest Research Institute

RECON