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 07:41:42 UTC

J2000 position of star is 06:42:43.9 +15:25:50
Equinox of date position of star is 06:43:53.4 +15:24:34
Stellar brightness G=15.9, use SENSEUP=128
Star is 41 degrees from the moon. Moon is 68% illuminated.
TNO apparent brightness V=22.7

[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 92 seconds.
The 1-sigma cross-track error in the shadow position is 830 km.
The sky-plane scale is 12734.2 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=71.1 km assuming a 5% albedo -- 3.2 sec chord
Diameter=29.0 km assuming a 30% albedo -- 1.3 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 20.7 km RECON observability=1.0 and success probability=35.0%
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 07:43:11 -61.8 Dark Up 46.5 131.5 Up 07:35:01 - 07:51:21 2014
Kelowna 07:43:13 -62.2 Dark Up 46.7 131.0 Up 07:35:03 - 07:51:23 1985
Peachland 07:43:14 -62.3 Dark Up 46.6 130.6 Up 07:35:04 - 07:51:24 1981
Summerland 07:43:14 -62.5 Dark Up 46.8 130.6 Up 07:35:04 - 07:51:24 1967
Penticton 07:43:14 -62.5 Dark Up 46.9 130.7 Up 07:35:04 - 07:51:24 1960
Victoria 07:43:29 -63.3 Dark Up 45.5 125.4 Up 07:35:19 - 07:51:39 1949
Oliver 07:43:15 -62.9 Dark Up 47.1 130.4 Up 07:35:05 - 07:51:25 1931
Anarchist Mountain Observatory 07:43:15 -63.1 Dark Up 47.3 130.5 Up 07:35:05 - 07:51:25 1913
Tonasket 07:43:16 -63.4 Dark Up 47.5 130.1 Up 07:35:06 - 07:51:26 1889
Okanogan 07:43:18 -63.7 Dark Up 47.6 129.7 Up 07:35:08 - 07:51:28 1864
Brewster 07:43:19 -64.0 Dark Up 47.7 129.2 Up 07:35:09 - 07:51:29 1845
Manson/Chelan 07:43:21 -64.2 Dark Up 47.6 128.6 Up 07:35:11 - 07:51:31 1834
Entiat 07:43:21 -64.4 Dark Up 47.7 128.3 Up 07:35:11 - 07:51:31 1817
Wenatchee 07:43:23 -64.6 Dark Up 47.8 128.0 Up 07:35:13 - 07:51:33 1798
Ellensburg 07:43:24 -65.0 Dark Up 48.0 127.4 Up 07:35:14 - 07:51:34 1767
Yakima 07:43:26 -65.4 Dark Up 48.2 127.0 Up 07:35:16 - 07:51:36 1733
Toppenish/White Swan 07:43:26 -65.6 Dark Up 48.4 127.0 Up 07:35:16 - 07:51:36 1711
Pasco 07:43:22 -65.8 Dark Up 49.2 128.4 Up 07:35:12 - 07:51:32 1676
Goldendale 07:43:29 -66.2 Dark Up 48.5 126.0 Up 07:35:19 - 07:51:39 1673
The Dalles 07:43:31 -66.4 Dark Up 48.5 125.4 Up 07:35:21 - 07:51:41 1660
PNWRO 07:43:22 -66.1 Dark Up 49.5 128.5 Up 07:35:12 - 07:51:32 1651
Maupin 07:43:32 -66.8 Dark Up 48.8 125.1 Up 07:35:22 - 07:51:42 1622
Sisters 07:43:36 -67.6 Dark Up 49.0 123.7 Up 07:35:26 - 07:51:46 1556
Redmond 07:43:35 -67.7 Dark Up 49.2 124.2 Up 07:35:25 - 07:51:45 1546
Bend 07:43:35 -67.9 Dark Up 49.3 123.8 Up 07:35:25 - 07:51:45 1530
Oregon Observatory 07:43:37 -68.1 Dark Up 49.3 123.5 Up 07:35:27 - 07:51:47 1518
La Pine/Gilchrist 07:43:37 -68.3 Dark Up 49.4 123.2 Up 07:35:27 - 07:51:47 1501
North Lake 07:43:37 -68.7 Dark Up 50.0 123.5 Up 07:35:27 - 07:51:47 1450
Paisley 07:43:37 -69.3 Dark Up 50.5 123.4 Up 07:35:27 - 07:51:47 1394
Klamath Falls 07:43:43 -69.7 Dark Up 50.0 121.5 Up 07:35:33 - 07:51:53 1378
Lakeview 07:43:38 -69.8 Dark Up 50.9 123.1 Up 07:35:28 - 07:51:48 1344
Cedarville 07:43:39 -70.5 Dark Up 51.4 122.6 Up 07:35:29 - 07:51:49 1281
Fall River/Burney 07:43:44 -70.9 Dark Up 50.9 120.7 Up 07:35:34 - 07:51:54 1263
Susanville 07:43:44 -71.6 Dark Up 51.7 120.9 Up 07:35:34 - 07:51:54 1190
Greenville 07:43:46 -71.8 Dark Up 51.6 120.3 Up 07:35:36 - 07:51:56 1171
Gimple 07:43:45 -71.8 Dark Up 51.7 120.4 Up 07:35:35 - 07:51:55 1169
Quincy 07:43:46 -72.0 Dark Up 51.7 120.0 Up 07:35:36 - 07:51:56 1152
Portola 07:43:45 -72.2 Dark Up 52.1 120.4 Up 07:35:35 - 07:51:55 1131
Reno 07:43:43 -72.5 Dark Up 52.7 120.9 Up 07:35:33 - 07:51:53 1092
Carson City 07:43:44 -72.9 Dark Up 52.9 120.5 Up 07:35:34 - 07:51:54 1058
Gardnerville 07:43:44 -73.1 Dark Up 53.0 120.3 Up 07:35:34 - 07:51:54 1035
Yerington 07:43:42 -73.1 Dark Up 53.4 121.0 Up 07:35:32 - 07:51:52 1026
Hawthorne 07:43:41 -73.5 Dark Up 54.0 121.1 Up 07:35:31 - 07:51:51 971
Lee Vining 07:43:45 -74.1 Dark Up 53.9 119.9 Up 07:35:35 - 07:51:55 929
Tonopah 07:43:37 -74.0 Dark Up 55.1 122.2 Up 07:35:27 - 07:51:47 897
Niwot 07:42:45 -68.8 Dark Up 60.6 141.9 Up 07:34:35 - 07:50:55 858
Bishop 07:43:43 -74.7 Dark Up 54.7 120.0 Up 07:35:33 - 07:51:53 857
SwRI 07:42:45 -68.9 Dark Up 60.7 141.7 Up 07:34:35 - 07:50:55 849
Beatty 07:43:38 -75.1 Dark Up 56.1 121.3 Up 07:35:28 - 07:51:48 777
Indian Springs 07:43:35 -75.3 Dark Up 57.0 122.2 Up 07:35:25 - 07:51:45 722
CPSLO 07:43:57 -76.6 Dark Up 54.1 115.0 Up 07:35:47 - 07:52:07 710
Henderson 07:43:33 -75.7 Dark Up 57.7 122.4 Up 07:35:23 - 07:51:43 655
Searchlight/Boulder City 07:43:34 -76.2 Dark Up 58.1 121.7 Up 07:35:24 - 07:51:44 598
Patrick 07:43:30 -76.1 Dark Up 58.8 123.0 Up 07:35:20 - 07:51:40 571
Laughlin/Bullhead City 07:43:33 -76.5 Dark Up 58.5 121.7 Up 07:35:23 - 07:51:43 561
Kingman/Dolan Springs 07:43:31 -76.3 Dark Up 58.8 122.4 Up 07:35:21 - 07:51:41 553
Wildwood 07:43:52 -78.0 Dark Up 56.1 115.6 Up 07:35:42 - 07:52:02 546
Mohave Valley 07:43:34 -76.7 Dark Up 58.6 121.4 Up 07:35:24 - 07:51:44 535
DCO 07:43:28 -76.2 Dark Up 59.5 123.5 Up 07:35:18 - 07:51:38 526
Lake Havasu City 07:43:34 -77.0 Dark Up 59.0 121.1 Up 07:35:24 - 07:51:44 490
Idyllwild 07:43:45 -78.2 Dark Up 57.7 117.2 Up 07:35:35 - 07:51:55 468
Parker 07:43:34 -77.4 Dark Up 59.2 120.6 Up 07:35:24 - 07:51:44 455
Blythe 07:43:37 -77.9 Dark Up 59.3 119.5 Up 07:35:27 - 07:51:47 409
Calipatria 07:43:42 -78.6 Dark Up 58.8 117.7 Up 07:35:32 - 07:51:52 381
George/Scottsdale 07:43:25 -77.0 Dark Up 61.1 123.2 Up 07:35:15 - 07:51:35 360
Yuma 07:43:39 -78.8 Dark Up 59.7 118.1 Up 07:35:29 - 07:51:49 318

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 2020/03/21 21:20:37 UT

Marc W. Buie, Southwest Research Institute

RECON