RECON: TNO occultation with 579062

Event between (579062) 14KF113 and star GA0940:05368525 with event index number of 2557661

Geocentric closest approach at 2027/06/11 08:46:49 UTC

J2000 position of star is 17:45:29.4 +05:25:32
Equinox of date position of star is 17:46:39.1 +05:25:03
Stellar brightness G=15.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 97 degrees from the moon. Moon is 49% illuminated.
Apparent brightness V=22.4

[RECON map]
Object is 35.2 AU from the Sun and 34.3 AU from the Earth.
Apparent velocity is 23.7 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 233 seconds.
The 1-sigma cross-track error in the shadow position is 1401 km.
The sky-plane scale is 24849.2 km/arcsec.

The object has an absolute magnitude Hv=6.9
Diameter=250.0 km assuming a 5% albedo -- 10.6 sec chord
Diameter=102.1 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 579062, (2027/06/11 08:45UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:52.0 +38:48:37  0.0 35.34 105
60Bet Oph      17:44:49.8 +04:33:28  2.8  0.99  97
PPM 164771     17:54:34.5 +06:05:52  5.8  2.04  99
PPM 164547     17:47:28.2 +05:31:17  7.1  0.19  98
PPM 164534     17:46:55.8 +05:25:02  9.0  0.02  97
579062         17:46:50.3 +05:24:58 15.8        98
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 3.9 sigma about the mid-time.
The median site spacing is 28.0 km RECON observability=1.0 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)
Sleaford 08:46:11 -11.5 NT Down 40.8 205.0 Up 08:31:11 - 09:01:11 9081
Kamloops 08:46:50 -15.6 AT Down 44.6 186.2 Up 08:31:50 - 09:01:50 8887
Kelowna 08:46:47 -16.2 AT Down 45.3 187.6 Up 08:31:47 - 09:01:47 8828
Peachland 08:46:48 -16.4 AT Down 45.5 187.2 Up 08:31:48 - 09:01:48 8818
Summerland 08:46:48 -16.5 AT Down 45.6 187.3 Up 08:31:48 - 09:01:48 8806
Penticton 08:46:48 -16.6 AT Down 45.7 187.5 Up 08:31:48 - 09:01:48 8802
Oliver 08:46:48 -16.9 AT Down 46.0 187.5 Up 08:31:48 - 09:01:48 8774
Anarchist Mountain Observatory 08:46:47 -17.1 AT Down 46.2 187.8 Up 08:31:47 - 09:01:47 8762
Okanogan 08:46:46 -17.7 AT Down 46.8 187.6 Up 08:31:46 - 09:01:46 8708
Victoria 08:46:59 -18.0 Dark Down 46.9 182.1 Up 08:31:59 - 09:01:59 8699
Brewster 08:46:48 -18.0 Dark Down 47.1 187.3 Up 08:31:48 - 09:01:48 8685
Manson/Chelan 08:46:49 -18.3 Dark Down 47.4 186.8 Up 08:31:49 - 09:01:49 8666
Wenatchee 08:46:48 -18.8 Dark Down 47.8 186.6 Up 08:31:48 - 09:01:48 8626
Ellensburg 08:46:49 -19.2 Dark Down 48.3 186.4 Up 08:31:49 - 09:01:49 8591
Yakima 08:46:49 -19.6 Dark Down 48.7 186.4 Up 08:31:49 - 09:01:49 8557
Toppenish/White Swan 08:46:48 -19.8 Dark Down 48.9 186.7 Up 08:31:48 - 09:01:48 8540
PNWRO 08:46:43 -19.9 Dark Down 49.1 189.0 Up 08:31:43 - 09:01:43 8518
The Dalles 08:46:51 -20.6 Dark Down 49.7 185.6 Up 08:31:51 - 09:01:51 8470
Maupin 08:46:50 -21.0 Dark Down 50.1 185.8 Up 08:31:50 - 09:01:50 8435
Sisters 08:46:51 -22.0 Dark Down 51.0 185.1 Up 08:31:51 - 09:01:51 8358
Bend 08:46:50 -22.2 Dark Down 51.2 185.6 Up 08:31:50 - 09:01:50 8339
Oregon Observatory 08:46:51 -22.4 Dark Down 51.4 185.4 Up 08:31:51 - 09:01:51 8323
Chiloquin 08:46:52 -23.7 Dark Down 52.8 184.9 Up 08:31:52 - 09:01:52 8206
Klamath Falls 08:46:51 -24.0 Dark Down 53.1 185.0 Up 08:31:51 - 09:01:51 8176
Cedarville 08:46:46 -24.5 Dark Down 53.7 187.8 Up 08:31:46 - 09:01:46 8124
Dunrhomin 08:45:53 -22.1 Dark Down 51.1 211.8 Up 08:30:53 - 09:00:53 8121
Nikitin 08:45:53 -22.2 Dark Down 51.2 211.8 Up 08:30:53 - 09:00:53 8105
CU-SBO 08:45:53 -22.3 Dark Down 51.3 211.8 Up 08:30:53 - 09:00:53 8098
Fall River/Burney 08:46:49 -25.2 Dark Down 54.2 185.8 Up 08:31:49 - 09:01:49 8073
Gimple 08:46:47 -26.0 Dark Down 55.1 186.9 Up 08:31:47 - 09:01:47 7994
Greenville 08:46:48 -26.0 Dark Down 55.1 186.7 Up 08:31:48 - 09:01:48 7994
Quincy 08:46:48 -26.2 Dark Down 55.3 186.7 Up 08:31:48 - 09:01:48 7976
Portola 08:46:45 -26.2 Dark Down 55.4 187.6 Up 08:31:45 - 09:01:45 7968
Reno 08:46:44 -26.4 Dark Down 55.6 188.8 Up 08:31:44 - 09:01:44 7948
Carson City 08:46:43 -26.7 Dark Down 55.9 188.9 Up 08:31:43 - 09:01:43 7915
Yerington 08:46:40 -26.8 Dark Down 56.1 190.0 Up 08:31:40 - 09:01:40 7901
Gardnerville 08:46:43 -27.0 Dark Down 56.2 189.0 Up 08:31:43 - 09:01:43 7893
Hawthorne 08:46:38 -27.2 Dark Down 56.4 191.1 Up 08:31:38 - 09:01:38 7862
Lee Vining 08:46:40 -27.8 Dark Down 57.1 190.4 Up 08:31:40 - 09:01:40 7807
Bishop 08:46:37 -28.3 Dark Down 57.5 191.9 Up 08:31:37 - 09:01:37 7756
Beatty 08:46:33 -28.4 Dark Down 57.7 195.0 Up 08:31:33 - 09:01:33 7724
Patrick 08:46:18 -29.1 Dark Down 58.4 200.9 Up 08:31:18 - 09:01:18 7605
Laughlin/Bullhead City 08:46:22 -29.5 Dark Down 58.8 199.7 Up 08:31:22 - 09:01:22 7576
Lake Havasu City 08:46:20 -30.1 Dark Down 59.4 200.6 Up 08:31:20 - 09:01:20 7514
George/Scottsdale 08:46:10 -30.2 Dark Down 59.3 205.6 Up 08:31:10 - 09:01:10 7459
Wildwood 08:46:36 -31.5 Dark Down 60.8 192.6 Up 08:31:36 - 09:01:36 7443
Idyllwild 08:46:28 -31.4 Dark Down 60.7 196.5 Up 08:31:28 - 09:01:28 7423
Calipatria 08:46:24 -31.7 Dark Down 61.0 199.1 Up 08:31:24 - 09:01:24 7372
Yuma 08:46:19 -31.9 Dark Down 61.2 201.1 Up 08:31:19 - 09:01:19 7337

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 579062, (2027/06/11 08:45UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 35.34 105
60Bet Oph      17:43:28.3 +04:34:06  2.8  0.99  97
PPM 164771     17:53:14.0 +06:06:07  5.8  2.04  99
PPM 164547     17:46:07.4 +05:31:49  7.1  0.19  98
PPM 164534     17:45:34.9 +05:25:35  9.0  0.02  97
579062         17:45:29.4 +05:25:32 15.8        97
Positions are for J2000

Event circumstances last updated at 2023/08/21 03:08:25 UT

Marc W. Buie, Southwest Research Institute

RECON