RECON: TNO occultation with 11UQ62

Event between 11UQ62 and star GA1040:02233180 with event index number of 1311718

Geocentric closest approach at 2023/12/03 07:42:14 UTC

J2000 position of star is 06:42:43.9 +15:25:50
Equinox of date position of star is 06:43:52.7 +15:24:35
Stellar brightness G=15.9, use SENSEUP=128
Star is 41 degrees from the moon. Moon is 68% illuminated.
TNO apparent brightness V=22.3

[RECON map]
TNO is 18.4 AU from the Sun and 17.6 AU from the Earth.
The TNO is moving 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 99 seconds.
The 1-sigma cross-track error in the shadow position is 866 km.
The sky-plane scale is 12734.1 km/arcsec.

The TNO 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 -- 1.5 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 21.7 km RECON observability=1.0 and success probability=24.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 07:43:42 -61.8 Dark Up 46.6 131.7 Up 07:34:56 - 07:52:28 2443
Kelowna 07:43:44 -62.2 Dark Up 46.8 131.2 Up 07:34:58 - 07:52:30 2414
Summerland 07:43:45 -62.5 Dark Up 46.8 130.7 Up 07:34:59 - 07:52:31 2396
Penticton 07:43:45 -62.5 Dark Up 46.9 130.8 Up 07:34:59 - 07:52:31 2389
Victoria 07:44:00 -63.3 Dark Up 45.6 125.5 Up 07:35:14 - 07:52:46 2378
Oliver 07:43:46 -62.9 Dark Up 47.2 130.5 Up 07:35:00 - 07:52:32 2360
Anarchist Mountain Observatory 07:43:46 -63.1 Dark Up 47.4 130.6 Up 07:35:00 - 07:52:32 2343
Tonasket 07:43:47 -63.4 Dark Up 47.5 130.3 Up 07:35:01 - 07:52:33 2318
Okanogan 07:43:49 -63.7 Dark Up 47.7 129.8 Up 07:35:03 - 07:52:35 2293
Brewster 07:43:50 -64.0 Dark Up 47.8 129.4 Up 07:35:04 - 07:52:36 2274
Manson/Chelan 07:43:52 -64.2 Dark Up 47.7 128.8 Up 07:35:06 - 07:52:38 2263
Entiat 07:43:53 -64.4 Dark Up 47.8 128.5 Up 07:35:07 - 07:52:39 2246
Wenatchee 07:43:54 -64.6 Dark Up 47.9 128.2 Up 07:35:08 - 07:52:40 2227
Ellensburg 07:43:56 -65.0 Dark Up 48.0 127.5 Up 07:35:10 - 07:52:42 2196
Yakima 07:43:57 -65.4 Dark Up 48.3 127.2 Up 07:35:11 - 07:52:43 2162
Toppenish/White Swan 07:43:57 -65.7 Dark Up 48.5 127.2 Up 07:35:11 - 07:52:43 2140
Pasco 07:43:53 -65.8 Dark Up 49.3 128.6 Up 07:35:07 - 07:52:39 2105
Goldendale 07:44:00 -66.2 Dark Up 48.6 126.2 Up 07:35:14 - 07:52:46 2102
The Dalles 07:44:02 -66.4 Dark Up 48.5 125.5 Up 07:35:16 - 07:52:48 2089
PNWRO 07:43:54 -66.1 Dark Up 49.6 128.6 Up 07:35:08 - 07:52:40 2080
Maupin 07:44:03 -66.8 Dark Up 48.8 125.3 Up 07:35:17 - 07:52:49 2051
Sisters 07:44:07 -67.6 Dark Up 49.1 123.9 Up 07:35:21 - 07:52:53 1985
Redmond 07:44:06 -67.7 Dark Up 49.3 124.3 Up 07:35:20 - 07:52:52 1975
Bend 07:44:07 -67.9 Dark Up 49.4 124.0 Up 07:35:21 - 07:52:53 1959
Oregon Observatory 07:44:08 -68.1 Dark Up 49.4 123.7 Up 07:35:22 - 07:52:54 1946
La Pine/Gilchrist 07:44:09 -68.3 Dark Up 49.5 123.4 Up 07:35:23 - 07:52:55 1930
North Lake 07:44:08 -68.7 Dark Up 50.1 123.7 Up 07:35:22 - 07:52:54 1879
Paisley 07:44:08 -69.3 Dark Up 50.6 123.5 Up 07:35:22 - 07:52:54 1823
Klamath Falls 07:44:14 -69.7 Dark Up 50.1 121.7 Up 07:35:28 - 07:53:00 1807
Lakeview 07:44:09 -69.8 Dark Up 51.0 123.2 Up 07:35:23 - 07:52:55 1773
Cedarville 07:44:10 -70.5 Dark Up 51.5 122.8 Up 07:35:24 - 07:52:56 1710
Fall River/Burney 07:44:16 -70.9 Dark Up 50.9 120.9 Up 07:35:30 - 07:53:02 1692
Susanville 07:44:15 -71.6 Dark Up 51.7 121.0 Up 07:35:29 - 07:53:01 1619
Greenville 07:44:17 -71.8 Dark Up 51.7 120.4 Up 07:35:31 - 07:53:03 1600
Gimple 07:44:16 -71.8 Dark Up 51.8 120.5 Up 07:35:30 - 07:53:02 1598
Quincy 07:44:17 -72.0 Dark Up 51.8 120.2 Up 07:35:31 - 07:53:03 1581
Portola 07:44:16 -72.2 Dark Up 52.2 120.6 Up 07:35:30 - 07:53:02 1559
Reno 07:44:14 -72.5 Dark Up 52.7 121.0 Up 07:35:28 - 07:53:00 1521
Carson City 07:44:15 -72.9 Dark Up 52.9 120.7 Up 07:35:29 - 07:53:01 1487
Gardnerville 07:44:16 -73.1 Dark Up 53.1 120.4 Up 07:35:30 - 07:53:02 1463
Yerington 07:44:13 -73.1 Dark Up 53.5 121.2 Up 07:35:27 - 07:52:59 1455
Hawthorne 07:44:13 -73.5 Dark Up 54.1 121.2 Up 07:35:27 - 07:52:59 1400
Lee Vining 07:44:16 -74.1 Dark Up 54.0 120.0 Up 07:35:30 - 07:53:02 1358
Tonopah 07:44:08 -74.0 Dark Up 55.2 122.4 Up 07:35:22 - 07:52:54 1326
Niwot 07:43:16 -68.7 Dark Up 60.7 142.2 Up 07:34:30 - 07:52:02 1287
Bishop 07:44:15 -74.7 Dark Up 54.8 120.1 Up 07:35:29 - 07:53:01 1285
SwRI 07:43:17 -68.9 Dark Up 60.7 141.9 Up 07:34:31 - 07:52:03 1278
Beatty 07:44:09 -75.1 Dark Up 56.2 121.5 Up 07:35:23 - 07:52:55 1205
Indian Springs 07:44:06 -75.3 Dark Up 57.1 122.4 Up 07:35:20 - 07:52:52 1151
CPSLO 07:44:29 -76.7 Dark Up 54.2 115.1 Up 07:35:43 - 07:53:15 1139
Henderson 07:44:04 -75.7 Dark Up 57.8 122.6 Up 07:35:18 - 07:52:50 1084
Searchlight/Boulder City 07:44:05 -76.2 Dark Up 58.2 121.9 Up 07:35:19 - 07:52:51 1027
Patrick 07:44:01 -76.0 Dark Up 58.9 123.1 Up 07:35:15 - 07:52:47 999
Laughlin/Bullhead City 07:44:05 -76.4 Dark Up 58.6 121.9 Up 07:35:19 - 07:52:51 990
Kingman/Dolan Springs 07:44:02 -76.3 Dark Up 58.9 122.6 Up 07:35:16 - 07:52:48 982
Wildwood 07:44:23 -78.0 Dark Up 56.2 115.7 Up 07:35:37 - 07:53:09 974
Mohave Valley 07:44:05 -76.7 Dark Up 58.7 121.5 Up 07:35:19 - 07:52:51 963
DCO 07:43:59 -76.1 Dark Up 59.6 123.6 Up 07:35:13 - 07:52:45 954
Lake Havasu City 07:44:05 -77.0 Dark Up 59.1 121.3 Up 07:35:19 - 07:52:51 919
Idyllwild 07:44:17 -78.2 Dark Up 57.8 117.3 Up 07:35:31 - 07:53:03 897
Parker 07:44:06 -77.3 Dark Up 59.3 120.8 Up 07:35:20 - 07:52:52 883
Blythe 07:44:08 -77.9 Dark Up 59.4 119.7 Up 07:35:22 - 07:52:54 838
Calipatria 07:44:13 -78.6 Dark Up 58.9 117.8 Up 07:35:27 - 07:52:59 810
George/Scottsdale 07:43:56 -76.9 Dark Up 61.2 123.4 Up 07:35:10 - 07:52:42 789
Yuma 07:44:10 -78.8 Dark Up 59.8 118.3 Up 07:35:24 - 07:52:56 747

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 2020/01/07 23:13:49 UT

Marc W. Buie, Southwest Research Institute

RECON