RECON: TNO occultation with 523713

Event between (523713) 14JX80 and star GA0940:06469906 with event index number of 2377725

Geocentric closest approach at 2027/05/28 09:17:02 UTC

J2000 position of star is 18:13:33.5 +05:29:49
Equinox of date position of star is 18:14:43.1 +05:30:18
Stellar brightness G=16.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 64 degrees from the moon. Moon is 52% illuminated.
Apparent brightness V=21.9

[RECON map]
Object is 37.0 AU from the Sun and 36.2 AU from the Earth.
Apparent velocity is 21.6 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 114 seconds.
The 1-sigma cross-track error in the shadow position is 1364 km.
The sky-plane scale is 26237.5 km/arcsec.

The object has an absolute magnitude Hv=6.2
Diameter=340.4 km assuming a 5% albedo -- 16.3 sec chord
Diameter=139.0 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is 5:2EEE+5:2EII
 
 
 
 
 
 

Star training set for 523713, (2027/05/28 09:18UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:51.9 +38:48:37  0.0 33.71  70
60Bet Oph      17:44:49.7 +04:33:28  2.8  7.55  71
73 Oph         18:10:55.7 +04:00:01  6.0  1.80  64
PPM 165339     18:12:28.5 +05:40:03  8.0  0.63  64
PPM 165399     18:14:16.4 +05:40:14  9.9  0.23  64
PPM 165429     18:15:21.9 +05:18:47 11.4  0.22  64
523713         18:14:54.2 +05:30:23 16.3        63
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=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 09:17:48 -10.6 NT Up 43.2 188.0 Up 09:07:48 - 09:27:47 12223
Kamloops 09:18:30 -15.8 AT Up 44.3 168.2 Up 09:08:31 - 09:28:30 11817
Kelowna 09:18:27 -16.3 AT Up 45.2 169.3 Up 09:08:27 - 09:28:26 11771
Peachland 09:18:28 -16.5 AT Up 45.3 168.9 Up 09:08:28 - 09:28:27 11756
Summerland 09:18:28 -16.6 AT Up 45.4 169.0 Up 09:08:28 - 09:28:27 11747
Penticton 09:18:27 -16.7 AT Up 45.5 169.1 Up 09:08:27 - 09:28:26 11744
Oliver 09:18:27 -17.0 AT Up 45.8 169.0 Up 09:08:27 - 09:28:26 11715
Anarchist Mountain Observatory 09:18:26 -17.1 AT Up 46.0 169.3 Up 09:08:27 - 09:28:26 11706
Okanogan 09:18:27 -17.8 AT Up 46.6 168.8 Up 09:08:27 - 09:28:26 11649
Brewster 09:18:27 -18.1 Dark Up 46.9 168.5 Up 09:08:27 - 09:28:26 11623
Manson/Chelan 09:18:28 -18.3 Dark Up 47.0 167.9 Up 09:08:29 - 09:28:28 11598
Victoria 09:18:39 -18.4 Dark Up 45.9 163.5 Up 09:08:39 - 09:28:38 11581
Wenatchee 09:18:28 -18.8 Dark Up 47.5 167.6 Up 09:08:29 - 09:28:28 11555
Ellensburg 09:18:29 -19.3 Dark Up 47.8 167.2 Up 09:08:29 - 09:28:28 11516
Yakima 09:18:28 -19.7 Dark Up 48.2 167.0 Up 09:08:29 - 09:28:28 11482
PNWRO 09:18:23 -19.8 Dark Up 49.0 169.3 Up 09:08:23 - 09:28:22 11470
Toppenish/White Swan 09:18:28 -19.8 Dark Up 48.5 167.2 Up 09:08:28 - 09:28:27 11467
The Dalles 09:18:30 -20.7 Dark Up 49.1 165.8 Up 09:08:31 - 09:28:30 11384
Maupin 09:18:29 -21.1 Dark Up 49.5 165.9 Up 09:08:30 - 09:28:29 11351
Dunrhomin 09:17:25 -20.3 Dark Up 54.8 191.3 Up 09:07:26 - 09:27:25 11322
Nikitin 09:17:27 -20.4 Dark Up 54.9 191.3 Up 09:07:28 - 09:27:27 11306
CU-SBO 09:17:27 -20.5 Dark Up 55.0 191.2 Up 09:07:28 - 09:27:27 11299
Sisters 09:18:30 -22.1 Dark Up 50.3 164.9 Up 09:08:30 - 09:28:29 11264
Bend 09:18:29 -22.2 Dark Up 50.6 165.2 Up 09:08:29 - 09:28:28 11250
Oregon Observatory 09:18:30 -22.4 Dark Up 50.7 164.9 Up 09:08:30 - 09:28:29 11232
Chiloquin 09:18:30 -23.8 Dark Up 51.9 163.8 Up 09:08:31 - 09:28:30 11107
Klamath Falls 09:18:30 -24.1 Dark Up 52.2 163.9 Up 09:08:31 - 09:28:30 11078
Cedarville 09:18:23 -24.3 Dark Up 53.2 166.2 Up 09:08:24 - 09:28:23 11054
Fall River/Burney 09:18:28 -25.1 Dark Up 53.5 164.0 Up 09:08:28 - 09:28:27 10982
Gimple 09:18:24 -25.8 Dark Up 54.4 164.5 Up 09:08:24 - 09:28:23 10913
Greenville 09:18:25 -25.8 Dark Up 54.4 164.4 Up 09:08:26 - 09:28:25 10911
Portola 09:18:23 -26.0 Dark Up 54.8 165.1 Up 09:08:24 - 09:28:23 10893
Quincy 09:18:24 -26.0 Dark Up 54.6 164.3 Up 09:08:24 - 09:28:23 10893
Reno 09:18:21 -26.1 Dark Up 55.2 166.1 Up 09:08:21 - 09:28:20 10885
Carson City 09:18:19 -26.4 Dark Up 55.6 166.0 Up 09:08:19 - 09:28:18 10853
Yerington 09:18:18 -26.4 Dark Up 55.9 167.0 Up 09:08:18 - 09:28:17 10851
Gardnerville 09:18:20 -26.6 Dark Up 55.8 166.0 Up 09:08:20 - 09:28:19 10832
Hawthorne 09:18:15 -26.7 Dark Up 56.4 167.8 Up 09:08:15 - 09:28:14 10822
Lee Vining 09:18:16 -27.4 Dark Up 56.9 166.7 Up 09:08:17 - 09:28:16 10758
Bishop 09:18:12 -27.7 Dark Up 57.6 167.8 Up 09:08:13 - 09:28:12 10721
Beatty 09:18:07 -27.6 Dark Up 58.3 170.6 Up 09:08:07 - 09:28:06 10720
Patrick 09:17:52 -27.9 Dark Up 60.0 175.8 Up 09:07:53 - 09:27:52 10660
Laughlin/Bullhead City 09:17:54 -28.4 Dark Up 60.2 174.4 Up 09:07:54 - 09:27:53 10618
Lake Havasu City 09:17:54 -28.9 Dark Up 60.9 174.8 Up 09:07:54 - 09:27:53 10562
George/Scottsdale 09:17:43 -28.6 Dark Up 61.8 179.8 Up 09:07:44 - 09:27:43 10557
Idyllwild 09:18:03 -30.5 Dark Up 61.4 169.8 Up 09:08:04 - 09:28:03 10426
Wildwood 09:18:10 -30.8 Dark Up 60.7 166.1 Up 09:08:11 - 09:28:10 10409
Calipatria 09:17:58 -30.6 Dark Up 62.2 172.0 Up 09:07:58 - 09:27:57 10399
Yuma 09:17:54 -30.6 Dark Up 62.7 173.8 Up 09:07:54 - 09:27:53 10383

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 523713, (2027/05/28 09:18UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 33.71  70
60Bet Oph      17:43:28.3 +04:34:06  2.8  7.55  71
73 Oph         18:09:34.0 +03:59:36  6.0  1.80  64
PPM 165339     18:11:07.9 +05:39:35  8.0  0.63  64
PPM 165399     18:12:55.7 +05:39:41  9.9  0.23  64
PPM 165429     18:14:01.0 +05:18:12 11.4  0.22  64
523713         18:13:33.5 +05:29:49 16.3        64
Positions are for J2000

Event circumstances last updated at 2023/08/21 03:08:02 UT

Marc W. Buie, Southwest Research Institute

RECON