RECON: TNO occultation with 14UO224

Event between 14UO224 and star GA1100:01552395 with event index number of 1976350

Geocentric closest approach at 2022/01/25 10:36:06 UTC

J2000 position of star is 05:54:05.3 +21:19:16
Equinox of date position of star is 05:55:24.2 +21:19:26
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 125 degrees from the moon. Moon is 52% illuminated.
TNO apparent brightness V=21.6

[RECON map]
TNO is 38.0 AU from the Sun and 37.2 AU from the Earth.
The TNO is moving 19.4 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 154 seconds.
The 1-sigma cross-track error in the shadow position is 1388 km.
The sky-plane scale is 26966.0 km/arcsec.

The TNO has an absolute magnitude Hv=5.7
Diameter=442.6 km assuming a 5% albedo -- 22.8 sec chord
Diameter=180.7 km assuming a 30% albedo -- 9.3 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 14UO224, (2022/01/25 10:36UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:22.0 +07:24:34  0.4 13.92 124
Alnath         05:27:41.3 +28:37:26  1.6  9.63 131
54Chi1Ori      05:55:41.4 +20:16:42  5.1  1.05 125
PPM 095070     05:56:19.8 +21:24:30  8.0  0.23 125
PPM 095037     05:54:54.8 +21:09:32  9.2  0.20 125
14UO224        05:55:24.7 +21:19:26 16.8       125
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 18.9 km RECON observability=0.9 and success probability=22.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:32:42 -39.5 Dark Up 17.6 282.3 Really Low 10:19:22 - 10:46:03 2315
Kamloops 10:32:45 -48.0 Dark Up 26.3 272.0 Low 10:19:24 - 10:46:05 1857
Kelowna 10:32:40 -48.0 Dark Up 25.7 273.1 Low 10:19:20 - 10:46:01 1818
Peachland 10:32:40 -48.2 Dark Up 25.9 272.9 Low 10:19:19 - 10:46:00 1802
Summerland 10:32:39 -48.3 Dark Up 25.9 273.1 Low 10:19:19 - 10:46:00 1793
Penticton 10:32:39 -48.3 Dark Up 25.8 273.2 Low 10:19:19 - 10:46:00 1790
Oliver 10:32:38 -48.5 Dark Up 25.8 273.4 Low 10:19:17 - 10:45:58 1763
Anarchist Mountain Observatory 10:32:37 -48.5 Dark Up 25.6 273.6 Low 10:19:16 - 10:45:57 1756
Tonasket 10:32:36 -48.7 Dark Up 25.7 273.7 Low 10:19:15 - 10:45:56 1729
Okanogan 10:32:34 -48.9 Dark Up 25.8 273.7 Low 10:19:14 - 10:45:55 1699
Brewster 10:32:34 -49.2 Dark Up 25.9 273.7 Low 10:19:13 - 10:45:54 1673
Manson/Chelan 10:32:33 -49.5 Dark Up 26.1 273.5 Low 10:19:13 - 10:45:54 1647
Victoria 10:32:39 -50.9 Dark Up 28.3 270.8 Low 10:19:19 - 10:46:00 1614
Wenatchee 10:32:31 -49.9 Dark Up 26.2 273.6 Low 10:19:10 - 10:45:51 1605
Ellensburg 10:32:29 -50.2 Dark Up 26.3 273.7 Low 10:19:09 - 10:45:50 1567
Pasco 10:32:25 -49.8 Dark Up 25.3 275.0 Low 10:19:05 - 10:45:46 1545
Yakima 10:32:28 -50.5 Dark Up 26.3 273.9 Low 10:19:08 - 10:45:49 1533
PNWRO 10:32:24 -49.8 Dark Up 25.1 275.3 Low 10:19:04 - 10:45:45 1531
Toppenish/White Swan 10:32:27 -50.5 Dark Up 26.2 274.1 Low 10:19:07 - 10:45:48 1520
Dunrhomin 10:31:54 -42.5 Dark Up 14.3 286.0 Really Low 10:18:34 - 10:45:15 1469
Goldendale 10:32:26 -51.0 Dark Up 26.4 274.1 Low 10:19:05 - 10:45:46 1464
The Dalles 10:32:25 -51.4 Dark Up 26.7 273.9 Low 10:19:05 - 10:45:46 1436
Maupin 10:32:24 -51.5 Dark Up 26.6 274.2 Low 10:19:03 - 10:45:44 1405
Redmond 10:32:20 -52.1 Dark Up 26.6 274.6 Low 10:19:00 - 10:45:41 1327
Sisters 10:32:21 -52.3 Dark Up 26.9 274.3 Low 10:19:00 - 10:45:41 1318
Bend 10:32:20 -52.3 Dark Up 26.7 274.6 Low 10:18:59 - 10:45:40 1306
Oregon Observatory 10:32:19 -52.4 Dark Up 26.8 274.6 Low 10:18:59 - 10:45:40 1288
La Pine/Gilchrist 10:32:18 -52.6 Dark Up 26.8 274.6 Low 10:18:58 - 10:45:39 1269
North Lake 10:32:16 -52.4 Dark Up 26.3 275.3 Low 10:18:56 - 10:45:37 1249
Paisley 10:32:13 -52.5 Dark Up 26.0 275.8 Low 10:18:53 - 10:45:34 1212
Lakeview 10:32:11 -52.6 Dark Up 25.8 276.1 Low 10:18:51 - 10:45:32 1175
Chiloquin 10:32:15 -53.4 Dark Up 27.0 275.0 Low 10:18:54 - 10:45:35 1164
Klamath Falls 10:32:14 -53.5 Dark Up 26.9 275.2 Low 10:18:53 - 10:45:34 1137
Cedarville 10:32:09 -52.8 Dark Up 25.6 276.5 Low 10:18:48 - 10:45:29 1124
Fall River/Burney 10:32:08 -53.8 Dark Up 26.5 276.0 Low 10:18:48 - 10:45:29 1046
Susanville 10:32:05 -53.6 Dark Up 25.9 276.8 Low 10:18:45 - 10:45:26 1013
Gimple 10:32:05 -53.9 Dark Up 26.0 276.8 Low 10:18:44 - 10:45:25 983
Greenville 10:32:05 -53.9 Dark Up 26.1 276.7 Low 10:18:44 - 10:45:25 980
Portola 10:32:03 -53.8 Dark Up 25.7 277.2 Low 10:18:43 - 10:45:24 966
Quincy 10:32:04 -54.0 Dark Up 26.0 276.8 Low 10:18:43 - 10:45:24 963
Reno 10:32:01 -53.4 Dark Up 25.1 277.7 Low 10:18:41 - 10:45:22 962
Yerington 10:31:59 -53.2 Dark Up 24.6 278.3 Low 10:18:38 - 10:45:19 933
Carson City 10:32:00 -53.6 Dark Up 25.1 277.8 Low 10:18:40 - 10:45:21 931
Gardnerville 10:31:59 -53.6 Dark Up 25.0 278.0 Low 10:18:39 - 10:45:20 911
Tonopah 10:31:53 -52.1 Dark Up 22.9 279.8 Low 10:18:32 - 10:45:13 910
Hawthorne 10:31:57 -53.0 Dark Up 24.1 278.8 Low 10:18:36 - 10:45:17 908
Lee Vining 10:31:55 -53.5 Dark Up 24.4 278.8 Low 10:18:35 - 10:45:16 843
Indian Springs 10:31:47 -51.4 Dark Up 21.5 281.2 Low 10:18:26 - 10:45:07 827
Beatty 10:31:49 -52.2 Dark Up 22.4 280.5 Low 10:18:29 - 10:45:10 822
Bishop 10:31:52 -53.2 Dark Up 23.7 279.4 Low 10:18:32 - 10:45:13 812
Henderson 10:31:44 -51.0 Dark Up 20.8 281.8 Low 10:18:24 - 10:45:05 801
Patrick 10:31:41 -50.3 Dark Up 19.8 282.6 Really Low 10:18:21 - 10:45:02 781
Kingman/Dolan Springs 10:31:41 -50.5 Dark Up 19.9 282.6 Really Low 10:18:20 - 10:45:01 755
Laughlin/Bullhead City 10:31:41 -50.9 Dark Up 20.3 282.3 Low 10:18:21 - 10:45:02 736
Mohave Valley 10:31:41 -51.0 Dark Up 20.3 282.4 Low 10:18:20 - 10:45:01 712
George/Scottsdale 10:31:35 -49.1 Dark Up 17.8 284.1 Really Low 10:18:14 - 10:44:55 695
Lake Havasu City 10:31:39 -50.9 Dark Up 20.0 282.7 Really Low 10:18:19 - 10:45:00 684
Parker 10:31:38 -51.0 Dark Up 19.9 282.8 Really Low 10:18:17 - 10:44:58 653
Blythe 10:31:37 -51.3 Dark Up 20.0 282.8 Low 10:18:16 - 10:44:57 595
CPSLO 10:31:49 -55.7 Dark Up 25.2 279.1 Low 10:18:28 - 10:45:09 555
Idyllwild 10:31:39 -53.0 Dark Up 21.8 281.8 Low 10:18:18 - 10:44:59 537
Calipatria 10:31:36 -52.2 Dark Up 20.7 282.6 Low 10:18:15 - 10:44:56 519
Yuma 10:31:34 -51.6 Dark Up 19.9 283.1 Really Low 10:18:13 - 10:44:54 510
Wildwood 10:31:42 -54.4 Dark Up 23.4 280.7 Low 10:18:22 - 10:45:03 509

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 14UO224, (2022/01/25 10:36UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 13.92 124
Alnath         05:26:17.6 +28:36:23  1.6  9.63 131
54Chi1Ori      05:54:22.7 +20:16:32  5.1  1.05 125
PPM 095070     05:55:00.4 +21:24:22  8.0  0.23 125
PPM 095037     05:53:35.5 +21:09:21  9.2  0.20 125
14UO224        05:54:05.3 +21:19:16 16.8       125
Positions are for J2000

Event circumstances last updated at 2021/12/05 02:02:58 UT

Marc W. Buie, Southwest Research Institute

RECON