RECON: TNO occultation with 14XU40

Event between 14XU40 and star GA1120:01114722 with event index number of 1047897

Geocentric closest approach at 2020/11/29 08:23:25 UTC

J2000 position of star is 05:20:43.1 +22:56:37
Equinox of date position of star is 05:21:52.5 +22:57:41
Stellar brightness G=15.8, use SENSEUP=128
Star is 25 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 34.1 AU from the Sun and 33.1 AU from the Earth.
The TNO is moving 24.0 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 100 seconds.
The 1-sigma cross-track error in the shadow position is 1201 km.
The sky-plane scale is 24013.5 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=229.1 km assuming a 5% albedo -- 9.5 sec chord
Diameter=93.5 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 14XU40, (2020/11/29 08:23UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:07.4 +16:32:59  0.8 12.34  14
Alnath         05:27:36.9 +28:37:24  1.6  5.80  28
109 Tau        05:20:32.1 +22:06:59  4.9  0.91  25
PPM 094251     05:19:46.9 +21:48:47  7.8  1.26  24
PPM 094288     05:22:00.8 +22:50:50 11.5  0.12  25
14XU40         05:21:59.1 +22:57:47 15.8        25
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 23.3 km RECON observability=1.0 and success probability=22.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 08:23:30 -60.7 Dark Up 62.8 169.9 Up 08:14:38 - 08:32:21 -1039
Summerland 08:23:31 -60.8 Dark Up 62.8 169.2 Up 08:14:39 - 08:32:22 -1040
Penticton 08:23:31 -61.1 Dark Up 63.1 169.4 Up 08:14:39 - 08:32:22 -1073
Okanagan Falls 08:23:31 -61.3 Dark Up 63.3 169.3 Up 08:14:40 - 08:32:23 -1091
Oliver 08:23:31 -61.4 Dark Up 63.4 169.3 Up 08:14:40 - 08:32:23 -1108
Anarchist Mountain Observatory 08:23:31 -61.6 Dark Up 63.6 169.6 Up 08:14:39 - 08:32:22 -1126
Oroville 08:23:31 -61.6 Dark Up 63.7 169.4 Up 08:14:39 - 08:32:22 -1133
Tonasket 08:23:31 -61.9 Dark Up 63.9 169.4 Up 08:14:39 - 08:32:22 -1156
Okanogan 08:23:32 -62.2 Dark Up 64.2 168.9 Up 08:14:40 - 08:32:23 -1188
Brewster 08:23:32 -62.5 Dark Up 64.5 168.4 Up 08:14:41 - 08:32:24 -1213
Manson/Chelan 08:23:34 -62.8 Dark Up 64.6 167.5 Up 08:14:42 - 08:32:25 -1231
Entiat 08:23:34 -63.0 Dark Up 64.8 167.3 Up 08:14:43 - 08:32:26 -1252
Wenatchee 08:23:35 -63.3 Dark Up 65.1 167.0 Up 08:14:43 - 08:32:26 -1276
Ellensburg 08:23:35 -63.7 Dark Up 65.4 166.3 Up 08:14:44 - 08:32:27 -1316
Yakima 08:23:36 -64.1 Dark Up 65.8 166.0 Up 08:14:44 - 08:32:27 -1356
Toppenish/White Swan 08:23:35 -64.3 Dark Up 66.1 166.3 Up 08:14:44 - 08:32:27 -1380
Pasco 08:23:31 -64.1 Dark Up 66.4 169.1 Up 08:14:40 - 08:32:23 -1404
PNWRO 08:23:31 -64.3 Dark Up 66.7 169.5 Up 08:14:40 - 08:32:23 -1431
Goldendale 08:23:37 -64.9 Dark Up 66.5 165.0 Up 08:14:46 - 08:32:29 -1431
George/Umatilla 08:23:32 -64.5 Dark Up 66.7 168.4 Up 08:14:41 - 08:32:24 -1436
The Dalles 08:23:39 -65.2 Dark Up 66.7 164.1 Up 08:14:47 - 08:32:30 -1450
Maupin 08:23:38 -65.6 Dark Up 67.1 164.1 Up 08:14:47 - 08:32:30 -1494
Madras/Culver 08:23:39 -66.1 Dark Up 67.6 163.6 Up 08:14:48 - 08:32:31 -1549
Sisters 08:23:41 -66.5 Dark Up 67.9 162.3 Up 08:14:49 - 08:32:32 -1578
Redmond 08:23:39 -66.4 Dark Up 68.0 163.2 Up 08:14:48 - 08:32:31 -1585
Bend 08:23:40 -66.7 Dark Up 68.1 162.7 Up 08:14:49 - 08:32:32 -1606
Oregon Observatory 08:23:41 -66.9 Dark Up 68.3 162.3 Up 08:14:49 - 08:32:32 -1622
La Pine/Gilchrist 08:23:41 -67.1 Dark Up 68.5 162.0 Up 08:14:50 - 08:32:33 -1642
North Lake 08:23:39 -67.3 Dark Up 69.0 163.1 Up 08:14:48 - 08:32:31 -1693
Chiloquin 08:23:43 -68.2 Dark Up 69.4 160.2 Up 08:14:51 - 08:32:34 -1753
Paisley 08:23:39 -67.8 Dark Up 69.6 163.6 Up 08:14:47 - 08:32:30 -1754
Klamath Falls 08:23:43 -68.5 Dark Up 69.8 160.1 Up 08:14:51 - 08:32:34 -1789
Lakeview 08:23:38 -68.2 Dark Up 70.1 163.7 Up 08:14:47 - 08:32:30 -1808
Tulelake 08:23:42 -68.7 Dark Up 70.1 160.6 Up 08:14:50 - 08:32:33 -1820
Cedarville 08:23:38 -68.8 Dark Up 70.8 163.7 Up 08:14:47 - 08:32:30 -1878
Fall River/Burney 08:23:43 -69.5 Dark Up 71.0 160.0 Up 08:14:51 - 08:32:34 -1916
Susanville 08:23:40 -69.9 Dark Up 71.8 161.4 Up 08:14:49 - 08:32:32 -1990
Greenville 08:23:42 -70.3 Dark Up 71.9 160.3 Up 08:14:50 - 08:32:33 -2015
Gimple 08:23:41 -70.2 Dark Up 72.0 160.5 Up 08:14:50 - 08:32:33 -2016
Quincy 08:23:42 -70.4 Dark Up 72.1 160.1 Up 08:14:51 - 08:32:34 -2037
Portola 08:23:41 -70.4 Dark Up 72.4 161.3 Up 08:14:49 - 08:32:32 -2055
Reno 08:23:38 -70.5 Dark Up 72.8 163.0 Up 08:14:47 - 08:32:30 -2090
Niwot 08:22:47 -62.8 Dark Up 71.2 206.7 Up 08:13:56 - 08:31:39 -2123
Carson City 08:23:38 -70.8 Dark Up 73.1 162.7 Up 08:14:47 - 08:32:30 -2128
SwRI 08:22:47 -62.9 Dark Up 71.3 206.6 Up 08:13:56 - 08:31:39 -2134
Gardnerville 08:23:38 -71.0 Dark Up 73.4 162.6 Up 08:14:47 - 08:32:30 -2154
Yerington 08:23:36 -70.7 Dark Up 73.4 164.5 Up 08:14:45 - 08:32:28 -2155
Hawthorne 08:23:35 -70.9 Dark Up 74.0 165.7 Up 08:14:43 - 08:32:26 -2210
Lee Vining 08:23:37 -71.6 Dark Up 74.4 163.6 Up 08:14:45 - 08:32:28 -2265
Tonopah 08:23:30 -70.7 Dark Up 74.7 170.1 Up 08:14:38 - 08:32:21 -2273
Bishop 08:23:34 -71.8 Dark Up 75.2 165.5 Up 08:14:43 - 08:32:26 -2336
Beatty 08:23:29 -71.5 Dark Up 75.9 171.0 Up 08:14:37 - 08:32:20 -2401
Lone Pine 08:23:34 -72.3 Dark Up 76.0 165.9 Up 08:14:42 - 08:32:25 -2420
Indian Springs 08:23:25 -71.2 Dark Up 76.3 174.9 Up 08:14:34 - 08:32:17 -2445
Henderson 08:23:23 -71.2 Dark Up 76.9 177.4 Up 08:14:31 - 08:32:14 -2508
CPSLO 08:23:44 -74.5 Dark Up 76.5 154.7 Up 08:14:53 - 08:32:36 -2532
Searchlight/Boulder City 08:23:23 -71.6 Dark Up 77.5 177.6 Up 08:14:31 - 08:32:14 -2571
Patrick 08:23:19 -71.0 Dark Up 77.5 182.0 Up 08:14:27 - 08:32:10 -2585
Laughlin/Bullhead City 08:23:22 -71.6 Dark Up 77.8 179.0 Up 08:14:30 - 08:32:13 -2606
Kingman/Dolan Springs 08:23:20 -71.3 Dark Up 77.8 181.2 Up 08:14:28 - 08:32:11 -2607
DCO 08:23:17 -70.8 Dark Up 77.8 185.1 Up 08:14:25 - 08:32:08 -2623
Mohave Valley 08:23:22 -71.8 Dark Up 78.0 179.0 Up 08:14:30 - 08:32:13 -2635
Lake Havasu City 08:23:21 -71.9 Dark Up 78.4 180.1 Up 08:14:29 - 08:32:12 -2681
Wildwood 08:23:37 -74.6 Dark Up 78.3 160.7 Up 08:14:46 - 08:32:29 -2685
Parker 08:23:21 -72.1 Dark Up 78.8 180.3 Up 08:14:30 - 08:32:13 -2719
Idyllwild 08:23:30 -73.8 Dark Up 79.0 168.7 Up 08:14:39 - 08:32:22 -2742
Blythe 08:23:22 -72.6 Dark Up 79.3 178.8 Up 08:14:31 - 08:32:14 -2773
Calipatria 08:23:26 -73.5 Dark Up 79.8 174.0 Up 08:14:35 - 08:32:18 -2819
Yuma 08:23:23 -73.2 Dark Up 80.2 178.5 Up 08:14:31 - 08:32:14 -2874

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 14XU40, (2020/11/29 08:23UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 12.34  14
Alnath         05:26:17.5 +28:36:23  1.6  5.80  28
109 Tau        05:19:16.6 +22:05:46  4.9  0.91  25
PPM 094251     05:18:31.6 +21:47:33  7.8  1.26  24
PPM 094288     05:20:44.9 +22:49:39 11.5  0.12  25
14XU40         05:20:43.1 +22:56:37 15.8        25
Positions are for J2000

Event circumstances last updated at 2019/02/02 21:44:23 UT

Marc W. Buie, Southwest Research Institute

RECON