RECON: TNO occultation with 11UQ62

Event between 11UQ62 and star GA1040:02233180 with event index number of 2135258

Geocentric closest approach at 2023/12/03 07:42:37 UTC

J2000 position of star is 06:42:43.9 +15:25:50
Equinox of date position of star is 06:44:06.0 +15:24:20
Stellar brightness G=15.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 41 degrees from the moon. Moon is 68% illuminated.
Apparent brightness V=22.3

[RECON map]
Object is 18.4 AU from the Sun and 17.6 AU from the Earth.
Apparent velocity is 18.9 km/sec on the sky relative to the star, or, 5.4 arcsec/hr.
The 1-sigma error in the time of the event is 53 seconds.
The 1-sigma cross-track error in the shadow position is 686 km.
The sky-plane scale is 12734.1 km/arcsec.

The object has an absolute magnitude Hv=9.6
Diameter=71.8 km assuming a 5% albedo -- 3.8 sec chord
Diameter=29.3 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 11UQ62, (2023/12/03 07:42UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:28.1 +07:24:34  0.4 14.14  55
Alhena         06:39:05.6 +16:22:37  1.9  1.55  42
PPM 122879     06:42:44.7 +16:22:23  5.9  1.02  42
PPM 122881     06:42:45.1 +15:24:11  8.3  0.33  42
PPM 122940     06:45:02.2 +15:34:09  9.9  0.28  41
PPM 122948     06:45:11.4 +15:27:17 10.8  0.27  41
11UQ62         06:44:06.1 +15:24:20 15.9        41
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 23.8 km RECON observability=1.0 and success probability=2.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 07:44:08 -61.4 Dark Up 45.8 130.9 Up 07:39:13 - 07:49:02 2463
Kelowna 07:44:07 -62.2 Dark Up 46.8 131.3 Up 07:39:13 - 07:49:02 2381
Peachland 07:44:09 -62.3 Dark Up 46.7 130.9 Up 07:39:14 - 07:49:03 2377
Summerland 07:44:09 -62.5 Dark Up 46.9 130.9 Up 07:39:14 - 07:49:03 2363
Penticton 07:44:09 -62.5 Dark Up 47.0 130.9 Up 07:39:14 - 07:49:03 2356
Sleaford 07:43:16 -58.5 Dark Up 50.4 150.7 Up 07:38:21 - 07:48:10 2346
Victoria 07:44:24 -63.3 Dark Up 45.7 125.6 Up 07:39:29 - 07:49:18 2345
Oliver 07:44:10 -62.9 Dark Up 47.2 130.7 Up 07:39:15 - 07:49:04 2327
Anarchist Mountain Observatory 07:44:10 -63.1 Dark Up 47.4 130.8 Up 07:39:15 - 07:49:04 2309
Okanogan 07:44:12 -63.7 Dark Up 47.7 130.0 Up 07:39:18 - 07:49:07 2259
Brewster 07:44:13 -64.0 Dark Up 47.8 129.5 Up 07:39:19 - 07:49:08 2241
Manson/Chelan 07:44:15 -64.2 Dark Up 47.7 128.9 Up 07:39:21 - 07:49:10 2230
Wenatchee 07:44:17 -64.6 Dark Up 48.0 128.3 Up 07:39:23 - 07:49:12 2193
Ellensburg 07:44:19 -65.0 Dark Up 48.1 127.7 Up 07:39:25 - 07:49:14 2163
Yakima 07:44:20 -65.4 Dark Up 48.3 127.3 Up 07:39:26 - 07:49:15 2129
Toppenish/White Swan 07:44:21 -65.7 Dark Up 48.6 127.3 Up 07:39:26 - 07:49:15 2107
The Dalles 07:44:25 -66.4 Dark Up 48.6 125.7 Up 07:39:31 - 07:49:20 2056
PNWRO 07:44:17 -66.1 Dark Up 49.6 128.8 Up 07:39:22 - 07:49:11 2046
Maupin 07:44:26 -66.8 Dark Up 48.9 125.4 Up 07:39:32 - 07:49:21 2018
Sisters 07:44:30 -67.7 Dark Up 49.1 124.0 Up 07:39:36 - 07:49:25 1951
Bend 07:44:30 -67.9 Dark Up 49.4 124.1 Up 07:39:36 - 07:49:25 1925
Oregon Observatory 07:44:31 -68.1 Dark Up 49.4 123.8 Up 07:39:37 - 07:49:26 1913
Chiloquin 07:44:36 -69.3 Dark Up 49.9 122.0 Up 07:39:42 - 07:49:31 1805
Klamath Falls 07:44:37 -69.7 Dark Up 50.1 121.8 Up 07:39:43 - 07:49:32 1773
Cedarville 07:44:33 -70.5 Dark Up 51.5 122.9 Up 07:39:39 - 07:49:28 1677
Fall River/Burney 07:44:39 -70.9 Dark Up 51.0 121.0 Up 07:39:45 - 07:49:34 1659
Greenville 07:44:40 -71.8 Dark Up 51.8 120.5 Up 07:39:46 - 07:49:35 1566
Gimple 07:44:40 -71.8 Dark Up 51.8 120.6 Up 07:39:45 - 07:49:34 1564
Quincy 07:44:41 -72.0 Dark Up 51.9 120.3 Up 07:39:46 - 07:49:35 1548
Portola 07:44:39 -72.2 Dark Up 52.2 120.7 Up 07:39:45 - 07:49:34 1526
Reno 07:44:38 -72.5 Dark Up 52.8 121.2 Up 07:39:43 - 07:49:32 1487
Carson City 07:44:38 -72.9 Dark Up 53.0 120.8 Up 07:39:44 - 07:49:33 1453
Gardnerville 07:44:39 -73.1 Dark Up 53.2 120.5 Up 07:39:44 - 07:49:33 1430
Yerington 07:44:37 -73.1 Dark Up 53.5 121.3 Up 07:39:42 - 07:49:31 1422
Hawthorne 07:44:36 -73.5 Dark Up 54.1 121.4 Up 07:39:41 - 07:49:30 1367
Lee Vining 07:44:39 -74.1 Dark Up 54.1 120.1 Up 07:39:45 - 07:49:34 1324
Dunrhomin 07:43:39 -68.6 Dark Up 60.6 142.5 Up 07:38:44 - 07:48:33 1267
Bishop 07:44:38 -74.7 Dark Up 54.9 120.2 Up 07:39:43 - 07:49:32 1252
Nikitin 07:43:39 -68.7 Dark Up 60.8 142.3 Up 07:38:44 - 07:48:33 1250
CU-SBO 07:43:40 -68.8 Dark Up 60.8 142.1 Up 07:38:45 - 07:48:34 1245
Beatty 07:44:33 -75.1 Dark Up 56.2 121.6 Up 07:39:38 - 07:49:27 1172
Patrick 07:44:24 -76.0 Dark Up 59.0 123.3 Up 07:39:30 - 07:49:19 966
Laughlin/Bullhead City 07:44:28 -76.4 Dark Up 58.6 122.0 Up 07:39:33 - 07:49:22 957
Wildwood 07:44:46 -78.0 Dark Up 56.3 115.8 Up 07:39:52 - 07:49:41 941
Lake Havasu City 07:44:28 -77.0 Dark Up 59.2 121.4 Up 07:39:34 - 07:49:23 885
Idyllwild 07:44:40 -78.2 Dark Up 57.8 117.5 Up 07:39:45 - 07:49:34 863
Calipatria 07:44:36 -78.6 Dark Up 59.0 118.0 Up 07:39:42 - 07:49:31 776
George/Scottsdale 07:44:19 -76.9 Dark Up 61.3 123.5 Up 07:39:25 - 07:49:14 756
Yuma 07:44:33 -78.8 Dark Up 59.8 118.4 Up 07:39:39 - 07:49:28 713

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 11UQ62, (2023/12/03 07:42UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 14.14  55
Alhena         06:37:42.8 +16:23:57  1.9  1.55  42
PPM 122879     06:41:21.9 +16:23:51  5.9  1.02  42
PPM 122881     06:41:22.9 +15:25:38  8.3  0.33  42
PPM 122940     06:43:39.9 +15:35:41  9.9  0.28  41
PPM 122948     06:43:49.1 +15:28:50 10.8  0.27  41
11UQ62         06:42:43.9 +15:25:50 15.9        41
Positions are for J2000

Event circumstances last updated at 2023/11/18 04:45:55 UT

Marc W. Buie, Southwest Research Institute

RECON