RECON: TNO occultation with 14UU228

Event between 14UU228 and star GA1080:00312147 with event index number of 1707688

Geocentric closest approach at 2021/12/08 05:24:02 UTC

J2000 position of star is 02:59:35.2 +18:50:45
Equinox of date position of star is 03:00:43.9 +18:55:31
Stellar brightness G=13.0, use SENSEUP=32
Star is 97 degrees from the moon. Moon is 21% illuminated.
TNO apparent brightness V=24.5

[RECON map]
TNO is 27.9 AU from the Sun and 27.0 AU from the Earth.
The TNO is moving 20.2 km/sec on the sky relative to the star, or, 3.7 arcsec/hr.
The 1-sigma error in the time of the event is 177 seconds.
The 1-sigma cross-track error in the shadow position is 1708 km.
The sky-plane scale is 19588.8 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=66.1 km assuming a 5% albedo -- 3.0 sec chord
Diameter=27.0 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 14UU228, (2021/12/08 05:24UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:10.9 +16:33:06  0.8 23.05 118
Hamal          02:08:24.9 +23:33:55  2.0 13.05  88
46Rho3Ari      02:57:40.7 +18:06:34  5.6  1.11  96
PPM 118712     02:59:57.8 +18:24:41  8.5  0.56  97
PPM 118729     03:00:50.2 +18:49:58  9.3  0.10  97
14UU228        03:00:49.8 +18:55:55 13.0        98
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 5.1 sigma about the mid-time.
The median site spacing is 24.1 km RECON observability=1.0 and success probability=18.8%
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 05:23:32 -50.5 Dark Down 58.2 168.9 Up 05:08:32 - 05:38:32 3210
Kelowna 05:23:32 -50.6 Dark Down 58.6 168.5 Up 05:08:32 - 05:38:32 3180
Peachland 05:23:34 -50.5 Dark Down 58.7 168.0 Up 05:08:34 - 05:38:34 3178
Victoria 05:23:48 -49.0 Dark Down 59.2 161.0 Up 05:08:48 - 05:38:48 3167
Summerland 05:23:34 -50.7 Dark Down 58.8 168.1 Up 05:08:34 - 05:38:34 3163
Penticton 05:23:33 -50.8 Dark Down 58.9 168.3 Up 05:08:33 - 05:38:33 3154
Oliver 05:23:34 -50.9 Dark Down 59.2 168.2 Up 05:08:34 - 05:38:34 3123
Anarchist Mountain Observatory 05:23:34 -51.1 Dark Down 59.4 168.5 Up 05:08:34 - 05:38:34 3103
Tonasket 05:23:35 -51.2 Dark Down 59.7 168.2 Up 05:08:35 - 05:38:35 3077
Okanogan 05:23:36 -51.3 Dark Down 60.0 167.8 Up 05:08:36 - 05:38:36 3052
Brewster 05:23:37 -51.3 Dark Down 60.3 167.4 Up 05:08:37 - 05:38:37 3033
Manson/Chelan 05:23:39 -51.2 Dark Down 60.4 166.6 Up 05:08:39 - 05:38:39 3024
Entiat 05:23:39 -51.3 Dark Down 60.6 166.4 Up 05:08:39 - 05:38:39 3006
Wenatchee 05:23:40 -51.3 Dark Down 60.9 166.1 Up 05:08:40 - 05:38:40 2986
Ellensburg 05:23:42 -51.4 Dark Down 61.2 165.5 Up 05:08:42 - 05:38:42 2955
Yakima 05:23:43 -51.5 Dark Down 61.6 165.3 Up 05:08:43 - 05:38:43 2919
Toppenish/White Swan 05:23:43 -51.7 Dark Down 61.8 165.5 Up 05:08:43 - 05:38:43 2895
Goldendale 05:23:46 -51.7 Dark Down 62.3 164.4 Up 05:08:46 - 05:38:46 2857
Pasco 05:23:39 -52.6 Dark Down 62.2 168.0 Up 05:08:39 - 05:38:39 2850
The Dalles 05:23:47 -51.6 Dark Down 62.5 163.6 Up 05:08:47 - 05:38:47 2847
PNWRO 05:23:38 -52.8 Dark Down 62.4 168.3 Up 05:08:38 - 05:38:38 2821
Maupin 05:23:47 -51.8 Dark Down 62.9 163.6 Up 05:08:47 - 05:38:47 2806
Sisters 05:23:51 -51.8 Dark Down 63.6 162.1 Up 05:08:51 - 05:38:51 2740
Redmond 05:23:50 -52.1 Dark Down 63.7 162.9 Up 05:08:50 - 05:38:50 2726
Bend 05:23:50 -52.1 Dark Down 63.9 162.5 Up 05:08:50 - 05:38:50 2711
Oregon Observatory 05:23:51 -52.1 Dark Down 64.0 162.1 Up 05:08:51 - 05:38:51 2699
La Pine/Gilchrist 05:23:52 -52.1 Dark Down 64.2 161.8 Up 05:08:52 - 05:38:52 2682
North Lake 05:23:51 -52.6 Dark Down 64.8 162.8 Up 05:08:51 - 05:38:51 2624
Paisley 05:23:51 -53.1 Dark Down 65.4 163.3 Up 05:08:51 - 05:38:51 2563
Klamath Falls 05:23:56 -52.4 Dark Down 65.5 160.3 Up 05:08:56 - 05:38:56 2555
Lakeview 05:23:51 -53.4 Dark Down 65.9 163.4 Up 05:08:51 - 05:38:51 2510
Cedarville 05:23:51 -53.8 Dark Down 66.6 163.4 Up 05:08:51 - 05:38:51 2443
Fall River/Burney 05:23:57 -53.0 Dark Down 66.7 160.2 Up 05:08:57 - 05:38:57 2434
Susanville 05:23:55 -53.8 Dark Down 67.5 161.5 Up 05:08:55 - 05:38:55 2352
Greenville 05:23:57 -53.6 Dark Down 67.7 160.6 Up 05:08:57 - 05:38:57 2335
Gimple 05:23:57 -53.7 Dark Down 67.7 160.8 Up 05:08:57 - 05:38:57 2332
Quincy 05:23:58 -53.7 Dark Down 67.9 160.4 Up 05:08:58 - 05:38:58 2315
Portola 05:23:56 -54.1 Dark Down 68.1 161.5 Up 05:08:56 - 05:38:56 2289
Reno 05:23:54 -54.6 Dark Down 68.5 162.9 Up 05:08:54 - 05:38:54 2244
Carson City 05:23:55 -54.8 Dark Down 68.9 162.6 Up 05:08:55 - 05:38:55 2209
Gardnerville 05:23:55 -54.9 Dark Down 69.1 162.6 Up 05:08:55 - 05:38:55 2184
Yerington 05:23:53 -55.3 Dark Down 69.2 164.1 Up 05:08:53 - 05:38:53 2171
Hawthorne 05:23:51 -55.8 Dark Down 69.8 165.2 Up 05:08:51 - 05:38:51 2110
Lee Vining 05:23:54 -55.6 Dark Down 70.2 163.5 Up 05:08:54 - 05:38:54 2070
Tonopah 05:23:47 -57.0 Dark Down 70.5 168.7 Up 05:08:47 - 05:38:47 2022
Bishop 05:23:53 -56.3 Dark Down 70.9 165.0 Up 05:08:53 - 05:38:53 1989
Niwot 05:22:55 -64.3 Dark Down 67.7 199.9 Up 05:07:55 - 05:37:55 1906
SwRI 05:22:56 -64.3 Dark Down 67.8 199.8 Up 05:07:56 - 05:37:56 1897
Beatty 05:23:47 -57.7 Dark Down 71.7 169.4 Up 05:08:47 - 05:38:47 1894
CPSLO 05:24:06 -55.1 Dark Down 72.3 156.6 Up 05:09:06 - 05:39:06 1858
Indian Springs 05:23:43 -58.6 Dark Down 72.1 172.4 Up 05:08:43 - 05:38:43 1830
Henderson 05:23:41 -59.3 Dark Down 72.7 174.4 Up 05:08:41 - 05:38:41 1756
Searchlight/Boulder City 05:23:42 -59.5 Dark Down 73.3 174.4 Up 05:08:42 - 05:38:42 1697
Wildwood 05:24:00 -56.9 Dark Down 74.0 161.5 Up 05:09:00 - 05:39:00 1673
Patrick 05:23:38 -60.3 Dark Down 73.4 177.8 Up 05:08:38 - 05:38:38 1660
Laughlin/Bullhead City 05:23:41 -59.8 Dark Down 73.6 175.5 Up 05:08:41 - 05:38:41 1656
Kingman/Dolan Springs 05:23:39 -60.2 Dark Down 73.6 177.2 Up 05:08:39 - 05:38:39 1644
Mohave Valley 05:23:41 -59.9 Dark Down 73.9 175.4 Up 05:08:41 - 05:38:41 1629
DCO 05:23:35 -61.0 Dark Down 73.7 180.1 Up 05:08:35 - 05:38:35 1609
Lake Havasu City 05:23:41 -60.2 Dark Down 74.3 176.2 Up 05:08:41 - 05:38:41 1581
Idyllwild 05:23:53 -58.5 Dark Down 74.8 167.5 Up 05:08:53 - 05:38:53 1578
Parker 05:23:42 -60.3 Dark Down 74.7 176.2 Up 05:08:42 - 05:38:42 1545
Blythe 05:23:44 -60.2 Dark Down 75.2 175.0 Up 05:08:44 - 05:38:44 1501
Calipatria 05:23:49 -59.6 Dark Down 75.6 171.3 Up 05:08:49 - 05:38:49 1479
George/Scottsdale 05:23:32 -62.4 Dark Down 75.1 184.9 Up 05:08:32 - 05:38:32 1430
Yuma 05:23:46 -60.4 Dark Down 76.1 174.5 Up 05:08:46 - 05:38:46 1408

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 14UU228, (2021/12/08 05:24UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 23.05 118
Hamal          02:07:10.7 +23:27:42  2.0 13.05  88
46Rho3Ari      02:56:26.5 +18:01:19  5.6  1.11  96
PPM 118712     02:58:43.5 +18:19:29  8.5  0.56  97
PPM 118729     02:59:35.7 +18:44:47  9.3  0.10  97
14UU228        02:59:35.2 +18:50:45 13.0        97
Positions are for J2000

Event circumstances last updated at 2020/03/12 21:57:21 UT

Marc W. Buie, Southwest Research Institute

RECON