RECON: TNO occultation with 567122

Event between (567122) 20PM3 and star GA1420:01569188 with event index number of 2643493

Geocentric closest approach at 2028/10/28 04:59:52 UTC

J2000 position of star is 02:21:45.7 +53:58:24
Equinox of date position of star is 02:23:17.5 +54:04:25
Stellar brightness G=15.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 75 degrees from the moon. Moon is 77% illuminated.
TNO apparent brightness V=20.4

[RECON map]
TNO is 12.3 AU from the Sun and 11.5 AU from the Earth.
The TNO is moving 20.0 km/sec on the sky relative to the star, or, 8.6 arcsec/hr.
The 1-sigma error in the time of the event is 280 seconds.
The 1-sigma cross-track error in the shadow position is 3995 km.
The sky-plane scale is 8337.4 km/arcsec.

The TNO has an absolute magnitude Hv=9.4
Diameter=80.5 km assuming a 5% albedo -- 4.0 sec chord
Diameter=32.9 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 567122, (2028/10/28 05:00UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:24.9 +45:23:04  1.3 52.40  56
37Del Cas      01:27:43.5 +60:23:03  2.7  9.81  73
10 Per         02:27:19.6 +56:44:20  6.0  2.68  77
PPM 027575     02:26:13.7 +54:19:12  8.0  0.42  76
PPM 027533     02:24:41.4 +54:19:13  9.3  0.26  76
PPM 027483     02:23:05.8 +54:20:24 10.9  0.26  75
567122         02:23:45.3 +54:06:13 15.7        76
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 3.2 sigma about the mid-time.
The median site spacing is 27.0 km RECON observability=1.0 and success probability=13.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 05:02:11 -40.2 Dark Up 63.8 65.8 Up 04:47:11 - 05:17:11 2254
Victoria 05:02:25 -39.6 Dark Up 61.1 61.5 Up 04:47:25 - 05:17:25 2201
Peachland 05:02:12 -41.0 Dark Up 63.8 64.2 Up 04:47:12 - 05:17:12 2147
Kelowna 05:02:11 -41.1 Dark Up 64.0 64.5 Up 04:47:11 - 05:17:11 2144
Summerland 05:02:13 -41.1 Dark Up 63.8 64.0 Up 04:47:13 - 05:17:13 2130
Penticton 05:02:12 -41.2 Dark Up 63.8 63.9 Up 04:47:12 - 05:17:12 2119
Oliver 05:02:14 -41.4 Dark Up 63.6 63.2 Up 04:47:14 - 05:17:14 2087
Anarchist Mountain Observatory 05:02:13 -41.6 Dark Up 63.7 63.0 Up 04:47:13 - 05:17:13 2064
Tonasket 05:02:14 -41.8 Dark Up 63.5 62.4 Up 04:47:14 - 05:17:14 2039
Okanogan 05:02:16 -41.9 Dark Up 63.3 61.8 Up 04:47:16 - 05:17:16 2016
Brewster 05:02:17 -41.9 Dark Up 63.0 61.3 Up 04:47:17 - 05:17:17 2000
Manson/Chelan 05:02:19 -41.8 Dark Up 62.7 60.9 Up 04:47:19 - 05:17:19 1998
Wenatchee 05:02:21 -42.0 Dark Up 62.4 60.1 Up 04:47:21 - 05:17:21 1963
Ellensburg 05:02:23 -42.1 Dark Up 62.0 59.4 Up 04:47:23 - 05:17:23 1936
Yakima 05:02:24 -42.3 Dark Up 61.8 58.7 Up 04:47:24 - 05:17:24 1901
Toppenish/White Swan 05:02:24 -42.5 Dark Up 61.8 58.4 Up 04:47:24 - 05:17:24 1874
Sleaford 05:01:28 -45.8 Dark Up 72.6 72.3 Up 04:46:28 - 05:16:28 1860
Goldendale 05:02:27 -42.5 Dark Up 61.3 57.5 Up 04:47:27 - 05:17:27 1845
The Dalles 05:02:29 -42.4 Dark Up 60.9 57.2 Up 04:47:29 - 05:17:29 1842
Maupin 05:02:30 -42.7 Dark Up 60.8 56.5 Up 04:47:30 - 05:17:30 1800
PNWRO 05:02:21 -43.5 Dark Up 62.5 57.9 Up 04:47:21 - 05:17:21 1773
Sisters 05:02:34 -42.8 Dark Up 60.0 55.3 Up 04:47:34 - 05:17:34 1746
Bend 05:02:34 -43.1 Dark Up 60.0 54.9 Up 04:47:34 - 05:17:34 1712
Oregon Observatory 05:02:34 -43.1 Dark Up 59.8 54.7 Up 04:47:34 - 05:17:34 1703
North Lake 05:02:35 -43.7 Dark Up 59.8 53.8 Up 04:47:35 - 05:17:35 1620
Chiloquin 05:02:39 -43.4 Dark Up 58.8 52.9 Up 04:47:39 - 05:17:39 1607
Klamath Falls 05:02:40 -43.6 Dark Up 58.7 52.4 Up 04:47:40 - 05:17:40 1573
Lakeview 05:02:36 -44.5 Dark Up 59.5 52.3 Up 04:47:36 - 05:17:36 1498
Fall River/Burney 05:02:42 -44.4 Dark Up 58.2 50.9 Up 04:47:42 - 05:17:42 1450
Cedarville 05:02:37 -45.0 Dark Up 59.2 51.4 Up 04:47:37 - 05:17:37 1431
Susanville 05:02:42 -45.1 Dark Up 58.2 50.0 Up 04:47:42 - 05:17:42 1356
Greenville 05:02:44 -45.1 Dark Up 57.9 49.7 Up 04:47:44 - 05:17:44 1346
Gimple 05:02:43 -45.1 Dark Up 57.9 49.7 Up 04:47:43 - 05:17:43 1342
Quincy 05:02:44 -45.1 Dark Up 57.7 49.5 Up 04:47:44 - 05:17:44 1328
Portola 05:02:43 -45.5 Dark Up 57.9 49.3 Up 04:47:43 - 05:17:43 1293
Reno 05:02:42 -46.1 Dark Up 58.1 48.8 Up 04:47:42 - 05:17:42 1236
Carson City 05:02:43 -46.3 Dark Up 57.9 48.4 Up 04:47:43 - 05:17:43 1203
Gardnerville 05:02:43 -46.4 Dark Up 57.8 48.1 Up 04:47:43 - 05:17:43 1178
Yerington 05:02:41 -46.8 Dark Up 58.1 48.0 Up 04:47:41 - 05:17:41 1153
Hawthorne 05:02:41 -47.4 Dark Up 58.1 47.4 Up 04:47:41 - 05:17:41 1084
Lee Vining 05:02:44 -47.3 Dark Up 57.5 46.8 Up 04:47:44 - 05:17:44 1058
Tonopah 05:02:38 -48.6 Dark Up 58.6 46.5 Up 04:47:38 - 05:17:38 971
Bishop 05:02:43 -48.0 Dark Up 57.5 46.0 Up 04:47:43 - 05:17:43 967
Beatty 05:02:39 -49.4 Dark Up 58.1 45.0 Up 04:47:39 - 05:17:39 843
Indian Springs 05:02:36 -50.3 Dark Up 58.4 44.3 Up 04:47:36 - 05:17:36 760
Wildwood 05:02:51 -49.2 Dark Up 55.0 42.6 Up 04:47:51 - 05:17:51 685
Henderson 05:02:35 -51.0 Dark Up 58.4 43.4 Up 04:47:35 - 05:17:35 677
Dunrhomin 05:01:52 -54.9 Dark Up 66.7 44.5 Up 04:46:52 - 05:16:52 657
CU-SBO 05:01:53 -55.0 Dark Up 66.5 44.1 Up 04:46:53 - 05:16:53 636
Laughlin/Bullhead City 05:02:35 -51.7 Dark Up 58.0 42.3 Up 04:47:35 - 05:17:35 577
Patrick 05:02:32 -52.1 Dark Up 58.6 42.3 Up 04:47:32 - 05:17:32 564
Idyllwild 05:02:46 -50.7 Dark Up 55.8 41.6 Up 04:47:46 - 05:17:46 553
Kingman/Dolan Springs 05:02:34 -52.1 Dark Up 58.3 42.1 Up 04:47:34 - 05:17:34 553
Mohave Valley 05:02:36 -51.9 Dark Up 57.8 42.0 Up 04:47:36 - 05:17:36 551
Lake Havasu City 05:02:36 -52.2 Dark Up 57.7 41.5 Up 04:47:36 - 05:17:36 502
Parker 05:02:37 -52.4 Dark Up 57.4 41.1 Up 04:47:37 - 05:17:37 468
Calipatria 05:02:43 -51.9 Dark Up 56.0 40.6 Up 04:47:43 - 05:17:43 438
Yuma 05:02:41 -52.7 Dark Up 56.1 39.8 Up 04:47:41 - 05:17:41 353
George/Scottsdale 05:02:29 -54.4 Dark Up 58.4 39.6 Up 04:47:29 - 05:17:29 311

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, (2028/10/28 05:00UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 52.40  56
37Del Cas      01:25:49.8 +60:14:06  2.7  9.81  73
10 Per         02:25:16.1 +56:36:36  6.0  2.68  77
PPM 027575     02:24:13.4 +54:11:27  8.0  0.42  76
PPM 027533     02:22:41.3 +54:11:25  9.3  0.26  76
PPM 027483     02:21:06.1 +54:12:34 10.9  0.26  75
567122         02:21:45.7 +53:58:24 15.7        75
Positions are for J2000

Event circumstances last updated at 2022/02/20 01:00:10 UT

Marc W. Buie, Southwest Research Institute

RECON