RECON: TNO occultation with 98UR43

Event between 98UR43 and star GA1180:01775582 with event index number of 1007073

Geocentric closest approach at 2020/11/24 03:17:58 UTC

J2000 position of star is 05:47:07.2 +28:17:05
Equinox of date position of star is 05:48:24.9 +28:17:27
Stellar brightness G=15.8, use SENSEUP=128
Star is 94 degrees from the moon. Moon is 69% illuminated.
TNO apparent brightness V=24.9

[RECON map]
TNO is 30.9 AU from the Sun and 30.0 AU from the Earth.
The TNO is moving 21.7 km/sec on the sky relative to the star, or, 3.6 arcsec/hr.
The 1-sigma error in the time of the event is 646 seconds.
The 1-sigma cross-track error in the shadow position is 3566 km.
The sky-plane scale is 21786.8 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=131.2 km assuming a 5% albedo -- 2.8 sec chord
Diameter=53.6 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 98UR43, (2020/11/24 03:18UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:07.3 +16:32:59  0.8 20.19  75
Alnath         05:27:36.9 +28:37:23  1.6  4.59  89
PPM 094619     05:40:38.1 +29:13:31  5.9  1.95  92
PPM 094771     05:45:40.0 +27:44:21  8.4  0.82  93
PPM 094860     05:48:23.5 +28:14:07  9.4  0.06  93
98UR43         05:48:26.5 +28:17:28 15.8        94
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 1.4 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 03:21:25 -28.6 Dark Up 16.9 66.2 Really Low 03:06:25 - 03:36:25 -592
Clarence Fulton 03:21:19 -31.2 Dark Up 20.0 69.5 Low 03:06:19 - 03:36:19 -620
Peachland 03:21:21 -30.9 Dark Up 19.6 69.0 Really Low 03:06:21 - 03:36:21 -637
Kelowna 03:21:21 -31.1 Dark Up 19.8 69.3 Really Low 03:06:21 - 03:36:21 -640
Summerland 03:21:22 -31.0 Dark Up 19.6 69.0 Really Low 03:06:22 - 03:36:22 -651
Penticton 03:21:22 -31.1 Dark Up 19.6 69.1 Really Low 03:06:22 - 03:36:22 -659
Oliver 03:21:23 -31.1 Dark Up 19.5 69.0 Really Low 03:06:23 - 03:36:23 -683
Anarchist Mountain Observatory 03:21:24 -31.2 Dark Up 19.6 69.1 Really Low 03:06:24 - 03:36:24 -701
Tonasket 03:21:25 -31.2 Dark Up 19.4 68.9 Really Low 03:06:25 - 03:36:25 -720
Okanogan 03:21:26 -31.1 Dark Up 19.2 68.7 Really Low 03:06:26 - 03:36:26 -738
Brewster 03:21:27 -31.0 Dark Up 19.0 68.5 Really Low 03:06:27 - 03:36:27 -749
Manson/Chelan 03:21:28 -30.8 Dark Up 18.7 68.2 Really Low 03:06:28 - 03:36:28 -751
Entiat 03:21:29 -30.8 Dark Up 18.6 68.1 Really Low 03:06:29 - 03:36:29 -763
Wenatchee 03:21:30 -30.7 Dark Up 18.4 67.9 Really Low 03:06:30 - 03:36:30 -777
Ellensburg 03:21:31 -30.6 Dark Up 18.1 67.7 Really Low 03:06:31 - 03:36:31 -798
Yakima 03:21:32 -30.6 Dark Up 18.0 67.5 Really Low 03:06:32 - 03:36:32 -826
Toppenish/White Swan 03:21:33 -30.7 Dark Up 18.0 67.6 Really Low 03:06:33 - 03:36:33 -848
Goldendale 03:21:35 -30.4 Dark Up 17.5 67.1 Really Low 03:06:35 - 03:36:35 -871
The Dalles 03:21:36 -30.2 Dark Up 17.2 66.8 Really Low 03:06:36 - 03:36:36 -873
Pasco 03:21:34 -31.6 Dark Up 18.8 68.3 Really Low 03:06:34 - 03:36:34 -903
Maupin 03:21:37 -30.3 Dark Up 17.1 66.8 Really Low 03:06:37 - 03:36:37 -907
PNWRO 03:21:35 -31.8 Dark Up 18.8 68.4 Really Low 03:06:35 - 03:36:35 -929
Sisters 03:21:40 -29.9 Dark Up 16.4 66.3 Really Low 03:06:40 - 03:36:40 -952
Redmond 03:21:40 -30.2 Dark Up 16.7 66.5 Really Low 03:06:40 - 03:36:40 -969
Bend 03:21:41 -30.1 Dark Up 16.5 66.4 Really Low 03:06:41 - 03:36:41 -979
Oregon Observatory 03:21:42 -30.0 Dark Up 16.3 66.2 Really Low 03:06:42 - 03:36:42 -986
La Pine/Gilchrist 03:21:42 -30.0 Dark Up 16.2 66.1 Really Low 03:06:42 - 03:36:42 -999
North Lake 03:21:44 -30.4 Dark Up 16.5 66.4 Really Low 03:06:44 - 03:36:44 -1054
Klamath Falls 03:21:47 -29.8 Dark Up 15.5 65.6 Really Low 03:06:47 - 03:36:47 -1096
Paisley 03:21:46 -30.7 Dark Up 16.5 66.5 Really Low 03:06:46 - 03:36:46 -1109
Lakeview 03:21:47 -30.8 Dark Up 16.4 66.4 Really Low 03:06:47 - 03:36:47 -1155
Fall River/Burney 03:21:50 -30.0 Dark Up 15.2 65.5 Really Low 03:06:50 - 03:36:50 -1200
Cedarville 03:21:49 -30.9 Dark Up 16.3 66.4 Really Low 03:06:49 - 03:36:49 -1212
Susanville 03:21:53 -30.6 Dark Up 15.5 65.8 Really Low 03:06:53 - 03:36:53 -1278
Greenville 03:21:54 -30.3 Dark Up 15.2 65.6 Really Low 03:06:54 - 03:36:54 -1287
Gimple 03:21:54 -30.4 Dark Up 15.2 65.6 Really Low 03:06:54 - 03:36:54 -1291
Quincy 03:21:54 -30.3 Dark Up 15.1 65.5 Really Low 03:06:54 - 03:36:54 -1303
Portola 03:21:55 -30.7 Dark Up 15.4 65.8 Really Low 03:06:55 - 03:36:55 -1332
Reno 03:21:55 -31.2 Dark Up 15.7 66.1 Really Low 03:06:55 - 03:36:55 -1380
Carson City 03:21:56 -31.2 Dark Up 15.6 66.0 Really Low 03:06:56 - 03:36:56 -1409
Gardnerville 03:21:57 -31.2 Dark Up 15.5 66.0 Really Low 03:06:57 - 03:36:57 -1430
Yerington 03:21:57 -31.7 Dark Up 16.0 66.3 Really Low 03:06:57 - 03:36:57 -1450
Hawthorne 03:21:58 -32.1 Dark Up 16.2 66.4 Really Low 03:06:58 - 03:36:58 -1509
Lee Vining 03:22:00 -31.7 Dark Up 15.6 66.0 Really Low 03:07:00 - 03:37:00 -1534
Tonopah 03:22:00 -33.2 Dark Up 17.0 67.1 Really Low 03:07:00 - 03:37:00 -1606
Bishop 03:22:02 -32.2 Dark Up 15.9 66.3 Really Low 03:07:02 - 03:37:02 -1613
CPSLO 03:22:08 -30.3 Dark Up 13.4 64.6 Really Low 03:07:08 - 03:37:08 -1686
Beatty 03:22:03 -33.5 Dark Up 16.9 67.0 Really Low 03:07:03 - 03:37:03 -1720
Indian Springs 03:22:04 -34.4 Dark Up 17.6 67.4 Really Low 03:07:04 - 03:37:04 -1793
Henderson 03:22:05 -34.9 Dark Up 17.9 67.6 Really Low 03:07:05 - 03:37:05 -1868
Wildwood 03:22:11 -31.9 Dark Up 14.4 65.4 Really Low 03:07:11 - 03:37:11 -1876
Niwot 03:21:47 -42.3 Dark Up 26.5 74.2 Low 03:06:47 - 03:36:47 -1916
Searchlight/Boulder City 03:22:06 -35.0 Dark Up 17.7 67.5 Really Low 03:07:06 - 03:37:06 -1919
SwRI 03:21:48 -42.3 Dark Up 26.4 74.1 Low 03:06:48 - 03:36:48 -1921
Laughlin/Bullhead City 03:22:07 -35.2 Dark Up 17.9 67.6 Really Low 03:07:07 - 03:37:07 -1959
Patrick 03:22:06 -35.8 Dark Up 18.5 68.0 Really Low 03:07:06 - 03:37:06 -1968
Kingman/Dolan Springs 03:22:07 -35.7 Dark Up 18.3 67.8 Really Low 03:07:07 - 03:37:07 -1979
Mohave Valley 03:22:08 -35.2 Dark Up 17.8 67.5 Really Low 03:07:08 - 03:37:08 -1983
Idyllwild 03:22:11 -33.4 Dark Up 15.7 66.2 Really Low 03:07:11 - 03:37:11 -1989
DCO 03:22:07 -36.4 Dark Up 18.9 68.2 Really Low 03:07:07 - 03:37:07 -2025
Lake Havasu City 03:22:09 -35.4 Dark Up 17.8 67.5 Really Low 03:07:09 - 03:37:09 -2028
Parker 03:22:10 -35.5 Dark Up 17.7 67.4 Really Low 03:07:10 - 03:37:10 -2060
Blythe 03:22:11 -35.2 Dark Up 17.3 67.1 Really Low 03:07:11 - 03:37:11 -2092
Calipatria 03:22:13 -34.4 Dark Up 16.4 66.6 Really Low 03:07:13 - 03:37:13 -2094
Yuma 03:22:14 -35.1 Dark Up 16.9 66.8 Really Low 03:07:14 - 03:37:14 -2171
George/Scottsdale 03:22:10 -37.5 Dark Up 19.4 68.4 Really Low 03:07:10 - 03:37:10 -2202

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 98UR43, (2020/11/24 03:18UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 20.19  75
Alnath         05:26:17.5 +28:36:23  1.6  4.59  89
PPM 094619     05:39:18.3 +29:12:54  5.9  1.95  92
PPM 094771     05:44:21.1 +27:43:53  8.4  0.82  93
PPM 094860     05:47:04.3 +28:13:44  9.4  0.06  93
98UR43         05:47:07.2 +28:17:05 15.8        93
Positions are for J2000

Event circumstances last updated at 2020/06/22 20:15:59 UT

Marc W. Buie, Southwest Research Institute

RECON