RECON: TNO occultation with 567122

Event between (567122) 20PM3 and star GA1360:00582788 with event index number of 2643227

Geocentric closest approach at 2027/11/03 06:22:29 UTC

J2000 position of star is 01:26:50.3 +47:14:39
Equinox of date position of star is 01:28:10.1 +47:21:29
Stellar brightness G=13.5, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 118 degrees from the moon. Moon is 22% illuminated.
TNO apparent brightness V=20.4

[RECON map]
TNO is 12.2 AU from the Sun and 11.4 AU from the Earth.
The TNO is moving 20.5 km/sec on the sky relative to the star, or, 8.9 arcsec/hr.
The 1-sigma error in the time of the event is 181 seconds.
The 1-sigma cross-track error in the shadow position is 3701 km.
The sky-plane scale is 8234.4 km/arcsec.

The TNO has an absolute magnitude Hv=9.4
Diameter=80.5 km assuming a 5% albedo -- 3.9 sec chord
Diameter=32.9 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 567122, (2027/11/03 06:22UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:22.9 +45:22:52  1.3 47.59  77
57Gam1And      02:05:37.2 +42:27:43  2.3  8.20 124
49 And         01:31:47.1 +47:08:59  6.1  0.60 118
PPM 043971     01:27:21.2 +47:15:45  8.2  0.23 118
567122         01:28:31.0 +47:23:16 13.5       118
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 29.7 km RECON observability=1.0 and success probability=14.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 06:22:39 -50.6 Dark Down 85.6 140.1 Up 06:07:39 - 06:37:39 2733
Kelowna 06:22:37 -51.6 Dark Down 86.6 139.5 Up 06:07:37 - 06:37:37 2625
Peachland 06:22:39 -51.6 Dark Down 86.6 135.7 Up 06:07:39 - 06:37:39 2622
Summerland 06:22:39 -51.8 Dark Down 86.7 134.7 Up 06:07:39 - 06:37:39 2604
Victoria 06:22:53 -51.3 Dark Down 85.1 102.3 Up 06:07:53 - 06:37:53 2604
Penticton 06:22:38 -51.9 Dark Down 86.8 134.9 Up 06:07:38 - 06:37:38 2594
Sleaford 06:21:50 -52.6 Dark Down 81.9 237.5 Up 06:06:50 - 06:36:50 2578
Oliver 06:22:39 -52.2 Dark Down 87.1 130.0 Up 06:07:39 - 06:37:39 2558
Anarchist Mountain Observatory 06:22:39 -52.4 Dark Down 87.3 129.1 Up 06:07:39 - 06:37:39 2535
Tonasket 06:22:40 -52.6 Dark Down 87.4 123.2 Up 06:07:40 - 06:37:40 2505
Okanogan 06:22:41 -52.9 Dark Down 87.5 115.4 Up 06:07:41 - 06:37:41 2475
Brewster 06:22:42 -53.0 Dark Down 87.5 108.4 Up 06:07:42 - 06:37:42 2453
Manson/Chelan 06:22:44 -53.1 Dark Down 87.3 102.3 Up 06:07:44 - 06:37:44 2442
Wenatchee 06:22:45 -53.4 Dark Down 87.2 92.0 Up 06:07:45 - 06:37:45 2398
Ellensburg 06:22:47 -53.6 Dark Down 87.1 83.6 Up 06:07:47 - 06:37:47 2362
Yakima 06:22:48 -54.0 Dark Down 87.0 75.8 Up 06:07:48 - 06:37:48 2321
Toppenish/White Swan 06:22:48 -54.2 Dark Down 87.1 71.3 Up 06:07:48 - 06:37:48 2294
Goldendale 06:22:50 -54.5 Dark Down 86.6 63.8 Up 06:07:50 - 06:37:50 2250
The Dalles 06:22:52 -54.5 Dark Down 86.2 62.2 Up 06:07:52 - 06:37:52 2238
PNWRO 06:22:43 -55.1 Dark Down 87.8 54.6 Up 06:07:43 - 06:37:43 2212
Maupin 06:22:53 -54.9 Dark Down 86.1 56.3 Up 06:07:53 - 06:37:53 2192
Sisters 06:22:56 -55.4 Dark Down 85.3 49.4 Up 06:07:56 - 06:37:56 2118
Bend 06:22:56 -55.7 Dark Down 85.3 45.9 Up 06:07:56 - 06:37:56 2085
Oregon Observatory 06:22:57 -55.8 Dark Down 85.1 45.1 Up 06:07:57 - 06:37:57 2072
North Lake 06:22:56 -56.5 Dark Down 84.9 37.3 Up 06:07:56 - 06:37:56 1989
Chiloquin 06:23:01 -56.6 Dark Down 83.9 38.0 Up 06:08:01 - 06:38:01 1951
Klamath Falls 06:23:01 -56.9 Dark Down 83.7 35.7 Up 06:08:01 - 06:38:01 1914
Lakeview 06:22:56 -57.6 Dark Down 84.2 28.1 Up 06:07:56 - 06:37:56 1863
Cedarville 06:22:57 -58.2 Dark Down 83.7 24.4 Up 06:07:57 - 06:37:57 1791
Fall River/Burney 06:23:02 -58.0 Dark Down 82.8 28.6 Up 06:08:02 - 06:38:02 1781
Susanville 06:23:01 -58.8 Dark Down 82.5 23.0 Up 06:08:01 - 06:38:01 1693
Greenville 06:23:03 -58.9 Dark Down 82.2 23.6 Up 06:08:03 - 06:38:03 1674
Gimple 06:23:02 -58.9 Dark Down 82.2 23.2 Up 06:08:02 - 06:38:02 1671
Quincy 06:23:03 -59.0 Dark Down 82.0 23.0 Up 06:08:03 - 06:38:03 1654
Portola 06:23:02 -59.3 Dark Down 82.0 20.5 Up 06:08:02 - 06:38:02 1625
Reno 06:22:59 -59.9 Dark Down 81.9 17.0 Up 06:07:59 - 06:37:59 1576
Carson City 06:23:00 -60.2 Dark Down 81.6 16.2 Up 06:08:00 - 06:38:00 1539
Gardnerville 06:23:00 -60.4 Dark Down 81.3 15.6 Up 06:08:00 - 06:38:00 1513
Yerington 06:22:58 -60.6 Dark Down 81.5 13.1 Up 06:07:58 - 06:37:58 1499
Hawthorne 06:22:57 -61.2 Dark Down 81.1 10.2 Up 06:07:57 - 06:37:57 1434
Lee Vining 06:23:00 -61.4 Dark Down 80.5 11.5 Up 06:08:00 - 06:38:00 1392
Tonopah 06:22:52 -62.3 Dark Down 80.8 3.9 Up 06:07:52 - 06:37:52 1342
Bishop 06:22:58 -62.2 Dark Down 80.0 8.1 Up 06:07:58 - 06:37:58 1308
Dunrhomin 06:22:01 -64.3 Dark Down 79.5 315.2 Up 06:07:01 - 06:37:01 1283
Beatty 06:22:52 -63.4 Dark Down 79.7 1.7 Up 06:07:52 - 06:37:52 1209
Indian Springs 06:22:49 -64.2 Dark Down 79.3 357.8 Up 06:07:49 - 06:37:49 1143
Henderson 06:22:47 -65.0 Dark Down 78.8 355.5 Up 06:07:47 - 06:37:47 1068
Wildwood 06:23:05 -64.5 Dark Down 76.7 6.7 Up 06:08:05 - 06:38:05 983
Patrick 06:22:43 -66.0 Dark Down 78.0 352.1 Up 06:07:43 - 06:37:43 971
Laughlin/Bullhead City 06:22:47 -65.9 Dark Down 77.9 354.5 Up 06:07:47 - 06:37:47 966
Kingman/Dolan Springs 06:22:44 -66.1 Dark Down 77.8 352.9 Up 06:07:44 - 06:37:44 953
Mohave Valley 06:22:47 -66.1 Dark Down 77.6 354.6 Up 06:07:47 - 06:37:47 938
Lake Havasu City 06:22:47 -66.5 Dark Down 77.2 354.0 Up 06:07:47 - 06:37:47 890
Idyllwild 06:22:58 -65.9 Dark Down 76.5 1.1 Up 06:07:58 - 06:37:58 885
Parker 06:22:47 -66.8 Dark Down 76.8 354.1 Up 06:07:47 - 06:37:47 853
Calipatria 06:22:54 -67.0 Dark Down 75.9 357.8 Up 06:07:54 - 06:37:54 786
George/Scottsdale 06:22:37 -68.3 Dark Down 76.1 347.5 Up 06:07:37 - 06:37:37 741
Yuma 06:22:51 -67.8 Dark Down 75.4 355.5 Up 06:07:51 - 06:37:51 715

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 567122, (2027/11/03 06:22UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 47.59  77
57Gam1And      02:03:54.1 +42:19:46  2.3  8.20 124
49 And         01:30:06.1 +47:00:25  6.1  0.60 118
PPM 043971     01:25:40.8 +47:07:07  8.2  0.23 118
567122         01:26:50.3 +47:14:39 13.5       118
Positions are for J2000

Event circumstances last updated at 2022/01/30 00:25:26 UT

Marc W. Buie, Southwest Research Institute

RECON