RECON: TNO occultation with 533561

Event between (533561) 14JN80 and star GA0800:07797107 with event index number of 2586639

Geocentric closest approach at 2027/07/15 07:42:07 UTC

J2000 position of star is 18:01:06.7 -09:46:08
Equinox of date position of star is 18:02:20.6 -09:46:05
Stellar brightness G=13.2, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 23 degrees from the moon. Moon is 90% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 37.4 AU from the Sun and 36.4 AU from the Earth.
The TNO is moving 22.4 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 596 seconds.
The 1-sigma cross-track error in the shadow position is 4213 km.
The sky-plane scale is 26433.7 km/arcsec.

The TNO has an absolute magnitude Hv=6.6
Diameter=288.4 km assuming a 5% albedo -- 12.9 sec chord
Diameter=117.7 km assuming a 30% albedo -- 5.2 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 533561, (2027/07/15 07:42UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:06.0 -26:29:26  0.9 27.34   6
35Eta Oph      17:11:57.6 -15:45:25  2.6 13.72  12
64Nu Oph       18:00:32.6 -09:46:28  3.3  0.51  23
PPM 201352     18:05:25.2 -09:15:00  8.3  0.86  24
PPM 201294     18:01:51.4 -09:30:43  9.4  0.32  23
533561         18:02:37.7 -09:46:04 13.2        23
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 1.5 sigma about the mid-time.
The median site spacing is 20.2 km RECON observability=1.0 and success probability=5.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 07:40:34 -17.5 AT Up 27.7 199.5 Low 07:25:34 - 07:55:34 7283
Kelowna 07:40:32 -18.4 Dark Up 28.3 200.6 Low 07:25:32 - 07:55:32 7221
Peachland 07:40:33 -18.5 Dark Up 28.4 200.3 Low 07:25:33 - 07:55:33 7219
Summerland 07:40:32 -18.7 Dark Up 28.5 200.4 Low 07:25:32 - 07:55:32 7208
Penticton 07:40:32 -18.7 Dark Up 28.6 200.6 Low 07:25:32 - 07:55:32 7202
Victoria 07:40:43 -19.4 Dark Up 30.3 196.5 Up 07:25:43 - 07:55:43 7198
Oliver 07:40:31 -19.1 Dark Up 28.9 200.6 Low 07:25:31 - 07:55:31 7181
Anarchist Mountain Observatory 07:40:31 -19.3 Dark Up 29.0 200.9 Low 07:25:31 - 07:55:31 7168
Tonasket 07:40:31 -19.6 Dark Up 29.3 200.9 Low 07:25:31 - 07:55:31 7149
Sleaford 07:39:56 -16.1 AT Up 22.4 214.1 Low 07:24:56 - 07:54:56 7149
Okanogan 07:40:31 -19.9 Dark Up 29.7 200.8 Low 07:25:31 - 07:55:31 7130
Brewster 07:40:31 -20.1 Dark Up 30.0 200.6 Low 07:25:31 - 07:55:31 7116
Manson/Chelan 07:40:33 -20.3 Dark Up 30.3 200.2 Up 07:25:33 - 07:55:33 7109
Wenatchee 07:40:33 -20.8 Dark Up 30.7 200.1 Up 07:25:33 - 07:55:33 7081
Ellensburg 07:40:33 -21.2 Dark Up 31.2 200.0 Up 07:25:33 - 07:55:33 7058
Yakima 07:40:32 -21.6 Dark Up 31.6 200.0 Up 07:25:32 - 07:55:32 7032
Toppenish/White Swan 07:40:33 -21.8 Dark Up 31.7 200.3 Up 07:25:33 - 07:55:33 7015
Goldendale 07:40:33 -22.3 Dark Up 32.4 199.9 Up 07:25:33 - 07:55:33 6986
The Dalles 07:40:34 -22.5 Dark Up 32.7 199.6 Up 07:25:34 - 07:55:34 6976
PNWRO 07:40:28 -22.3 Dark Up 31.7 202.0 Up 07:25:28 - 07:55:28 6967
Maupin 07:40:34 -22.9 Dark Up 33.0 199.8 Up 07:25:34 - 07:55:34 6947
Sisters 07:40:36 -23.8 Dark Up 34.0 199.4 Up 07:25:36 - 07:55:36 6896
Bend 07:40:35 -24.0 Dark Up 34.1 199.8 Up 07:25:35 - 07:55:35 6875
Oregon Observatory 07:40:35 -24.2 Dark Up 34.3 199.6 Up 07:25:35 - 07:55:35 6866
North Lake 07:40:32 -24.9 Dark Up 34.8 200.4 Up 07:25:32 - 07:55:32 6812
Chiloquin 07:40:35 -25.4 Dark Up 35.7 199.5 Up 07:25:35 - 07:55:35 6781
Klamath Falls 07:40:34 -25.8 Dark Up 36.0 199.6 Up 07:25:34 - 07:55:34 6755
Lakeview 07:40:30 -26.0 Dark Up 35.6 201.3 Up 07:25:30 - 07:55:30 6728
Cedarville 07:40:29 -26.6 Dark Up 36.2 201.7 Up 07:25:29 - 07:55:29 6678
Fall River/Burney 07:40:32 -27.0 Dark Up 37.0 200.4 Up 07:25:32 - 07:55:32 6663
Susanville 07:40:31 -27.7 Dark Up 37.4 201.4 Up 07:25:31 - 07:55:31 6604
Greenville 07:40:32 -27.9 Dark Up 37.7 201.2 Up 07:25:32 - 07:55:32 6589
Gimple 07:40:30 -28.0 Dark Up 37.7 201.3 Up 07:25:30 - 07:55:30 6587
Quincy 07:40:31 -28.1 Dark Up 37.9 201.2 Up 07:25:31 - 07:55:31 6573
Portola 07:40:30 -28.3 Dark Up 37.9 201.8 Up 07:25:30 - 07:55:30 6556
Reno 07:40:27 -28.6 Dark Up 37.9 202.7 Up 07:25:27 - 07:55:27 6524
Carson City 07:40:27 -29.0 Dark Up 38.3 202.8 Up 07:25:27 - 07:55:27 6497
Gardnerville 07:40:26 -29.2 Dark Up 38.5 202.9 Up 07:25:26 - 07:55:26 6477
Yerington 07:40:25 -29.2 Dark Up 38.3 203.6 Up 07:25:25 - 07:55:25 6471
Hawthorne 07:40:22 -29.7 Dark Up 38.5 204.4 Up 07:25:22 - 07:55:22 6425
Lee Vining 07:40:24 -30.3 Dark Up 39.2 204.0 Up 07:25:24 - 07:55:24 6391
Tonopah 07:40:17 -30.3 Dark Up 38.5 206.2 Up 07:25:17 - 07:55:17 6363
Bishop 07:40:21 -30.9 Dark Up 39.5 205.0 Up 07:25:21 - 07:55:21 6330
Dunrhomin 07:39:39 -27.7 Dark Up 31.7 218.4 Up 07:24:39 - 07:54:39 6306
CU-SBO 07:39:39 -28.0 Dark Up 31.9 218.4 Up 07:24:39 - 07:54:39 6288
Beatty 07:40:15 -31.5 Dark Up 39.3 207.1 Up 07:25:15 - 07:55:15 6263
Indian Springs 07:40:11 -31.9 Dark Up 39.2 208.5 Up 07:25:11 - 07:55:11 6216
Henderson 07:40:09 -32.4 Dark Up 39.4 209.5 Up 07:25:09 - 07:55:09 6159
Patrick 07:40:04 -33.0 Dark Up 39.5 211.1 Up 07:25:04 - 07:55:04 6087
Laughlin/Bullhead City 07:40:07 -33.3 Dark Up 40.0 210.3 Up 07:25:07 - 07:55:07 6080
Kingman/Dolan Springs 07:40:05 -33.3 Dark Up 39.8 210.9 Up 07:25:05 - 07:55:05 6072
Wildwood 07:40:21 -34.2 Dark Up 42.5 206.0 Up 07:25:21 - 07:55:21 6070
Mohave Valley 07:40:06 -33.6 Dark Up 40.3 210.5 Up 07:25:06 - 07:55:06 6057
Lake Havasu City 07:40:06 -34.0 Dark Up 40.5 210.9 Up 07:25:06 - 07:55:06 6019
Idyllwild 07:40:13 -34.6 Dark Up 42.1 208.4 Up 07:25:13 - 07:55:13 6004
Parker 07:40:05 -34.3 Dark Up 40.8 211.1 Up 07:25:05 - 07:55:05 5989
Calipatria 07:40:10 -35.3 Dark Up 42.2 210.1 Up 07:25:10 - 07:55:10 5928
George/Scottsdale 07:39:55 -34.7 Dark Up 40.1 214.1 Up 07:24:55 - 07:54:55 5905
Yuma 07:40:06 -35.8 Dark Up 42.2 211.4 Up 07:25:06 - 07:55:06 5873

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 533561, (2027/07/15 07:42UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 27.34   6
35Eta Oph      17:10:22.7 -15:43:29  2.6 13.72  12
64Nu Oph       17:59:01.6 -09:46:28  3.3  0.51  23
PPM 201352     18:03:54.5 -09:15:12  8.3  0.86  24
PPM 201294     18:00:20.5 -09:30:46  9.4  0.32  23
533561         18:01:06.7 -09:46:08 13.2        23
Positions are for J2000

Event circumstances last updated at 2022/05/09 22:58:03 UT

Marc W. Buie, Southwest Research Institute

RECON