RECON: TNO occultation with 05TV189

Event between 05TV189 and star GA0920:01449720 with event index number of 1957966

Geocentric closest approach at 2022/01/25 08:57:46 UTC

J2000 position of star is 06:28:05.6 +02:42:17
Equinox of date position of star is 06:29:14.3 +02:41:22
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 115 degrees from the moon. Moon is 52% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 32.8 AU from the Sun and 31.9 AU from the Earth.
The TNO is moving 22.1 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 281 seconds.
The 1-sigma cross-track error in the shadow position is 4104 km.
The sky-plane scale is 23162.1 km/arcsec.

The TNO has an absolute magnitude Hv=7.6
Diameter=178.7 km assuming a 5% albedo -- 8.1 sec chord
Diameter=72.9 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 05TV189, (2022/01/25 08:58UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:22.0 +07:24:34  0.4  9.45 123
Alhena         06:38:59.2 +16:22:43  1.9 13.90 114
PPM 150489     06:26:55.5 +02:15:27  6.4  0.72 115
PPM 150547     06:28:29.7 +02:53:36  6.6  0.28 115
05TV189        06:29:14.8 +02:41:22 16.9       114
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 3.2 sigma about the mid-time.
The median site spacing is 19.9 km RECON observability=1.0 and success probability=9.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:55:55 -51.5 Dark Up 22.5 243.3 Low 08:40:55 - 09:10:55 3403
Kamloops 08:56:20 -57.1 Dark Up 30.8 230.2 Up 08:41:20 - 09:11:20 3182
Kelowna 08:56:15 -57.7 Dark Up 30.9 231.4 Up 08:41:15 - 09:11:15 3138
Peachland 08:56:16 -57.9 Dark Up 31.1 231.2 Up 08:41:16 - 09:11:16 3128
Summerland 08:56:14 -58.0 Dark Up 31.1 231.4 Up 08:41:14 - 09:11:14 3119
Penticton 08:56:14 -58.0 Dark Up 31.1 231.5 Up 08:41:14 - 09:11:14 3116
Oliver 08:56:13 -58.4 Dark Up 31.3 231.7 Up 08:41:13 - 09:11:13 3092
Anarchist Mountain Observatory 08:56:13 -58.5 Dark Up 31.3 231.9 Up 08:41:13 - 09:11:13 3084
Tonasket 08:56:12 -58.8 Dark Up 31.6 232.0 Up 08:41:12 - 09:11:12 3062
Okanogan 08:56:11 -59.1 Dark Up 31.9 232.0 Up 08:41:11 - 09:11:11 3037
Brewster 08:56:11 -59.5 Dark Up 32.1 232.0 Up 08:41:11 - 09:11:11 3017
Victoria 08:56:21 -59.8 Dark Up 33.7 228.1 Up 08:41:21 - 09:11:21 3007
Manson/Chelan 08:56:11 -59.7 Dark Up 32.5 231.7 Up 08:41:11 - 09:11:11 2999
Wenatchee 08:56:10 -60.2 Dark Up 32.8 231.8 Up 08:41:10 - 09:11:10 2964
Ellensburg 08:56:09 -60.7 Dark Up 33.2 231.7 Up 08:41:09 - 09:11:09 2933
Yakima 08:56:08 -61.0 Dark Up 33.5 231.9 Up 08:41:08 - 09:11:08 2905
Pasco 08:56:04 -61.0 Dark Up 32.9 233.5 Up 08:41:04 - 09:11:04 2896
Toppenish/White Swan 08:56:07 -61.2 Dark Up 33.5 232.2 Up 08:41:07 - 09:11:07 2891
PNWRO 08:56:03 -61.2 Dark Up 32.9 233.9 Up 08:41:03 - 09:11:03 2882
Goldendale 08:56:07 -61.8 Dark Up 34.1 232.1 Up 08:41:07 - 09:11:07 2847
The Dalles 08:56:07 -62.1 Dark Up 34.4 231.8 Up 08:41:07 - 09:11:07 2827
Maupin 08:56:05 -62.5 Dark Up 34.6 232.1 Up 08:41:05 - 09:11:05 2798
Redmond 08:56:04 -63.4 Dark Up 35.2 232.5 Up 08:41:04 - 09:11:04 2731
Sisters 08:56:04 -63.4 Dark Up 35.5 232.1 Up 08:41:04 - 09:11:04 2728
Bend 08:56:03 -63.6 Dark Up 35.5 232.5 Up 08:41:03 - 09:11:03 2713
Oregon Observatory 08:56:03 -63.8 Dark Up 35.6 232.5 Up 08:41:03 - 09:11:03 2699
La Pine/Gilchrist 08:56:02 -64.0 Dark Up 35.8 232.5 Up 08:41:02 - 09:11:02 2683
North Lake 08:55:59 -64.3 Dark Up 35.7 233.4 Up 08:40:59 - 09:10:59 2658
Paisley 08:55:57 -64.7 Dark Up 35.8 234.1 Up 08:40:57 - 09:10:57 2620
Dunrhomin 08:55:12 -59.4 Dark Up 27.0 248.8 Low 08:40:12 - 09:10:12 2605
Chiloquin 08:56:00 -65.1 Dark Up 36.7 232.8 Up 08:41:00 - 09:11:00 2595
Lakeview 08:55:55 -65.1 Dark Up 36.0 234.5 Up 08:40:55 - 09:10:55 2584
Klamath Falls 08:55:59 -65.4 Dark Up 36.8 233.1 Up 08:40:59 - 09:10:59 2570
Cedarville 08:55:53 -65.6 Dark Up 36.3 235.1 Up 08:40:53 - 09:10:53 2535
Fall River/Burney 08:55:55 -66.4 Dark Up 37.3 234.2 Up 08:40:55 - 09:10:55 2483
Susanville 08:55:52 -66.8 Dark Up 37.2 235.3 Up 08:40:52 - 09:10:52 2442
Gimple 08:55:51 -67.1 Dark Up 37.5 235.3 Up 08:40:51 - 09:10:51 2417
Greenville 08:55:51 -67.1 Dark Up 37.6 235.2 Up 08:40:51 - 09:10:51 2416
Quincy 08:55:51 -67.3 Dark Up 37.7 235.3 Up 08:40:51 - 09:10:51 2400
Portola 08:55:49 -67.3 Dark Up 37.5 235.8 Up 08:40:49 - 09:10:49 2396
Reno 08:55:46 -67.3 Dark Up 37.2 236.6 Up 08:40:46 - 09:10:46 2383
Carson City 08:55:46 -67.6 Dark Up 37.4 236.9 Up 08:40:46 - 09:10:46 2355
Yerington 08:55:43 -67.5 Dark Up 37.1 237.6 Up 08:40:43 - 09:10:43 2347
Gardnerville 08:55:45 -67.8 Dark Up 37.5 237.1 Up 08:40:45 - 09:10:45 2335
Hawthorne 08:55:41 -67.7 Dark Up 37.0 238.4 Up 08:40:41 - 09:10:41 2315
Tonopah 08:55:35 -67.5 Dark Up 36.3 240.0 Up 08:40:35 - 09:10:35 2295
Lee Vining 08:55:41 -68.4 Dark Up 37.6 238.3 Up 08:40:41 - 09:10:41 2264
Bishop 08:55:37 -68.6 Dark Up 37.4 239.3 Up 08:40:37 - 09:10:37 2223
Beatty 08:55:31 -68.2 Dark Up 36.6 241.1 Up 08:40:31 - 09:10:31 2205
Indian Springs 08:55:27 -67.9 Dark Up 36.0 242.2 Up 08:40:27 - 09:10:27 2191
Henderson 08:55:24 -67.9 Dark Up 35.7 243.2 Up 08:40:24 - 09:10:24 2155
Patrick 08:55:19 -67.8 Dark Up 35.2 244.5 Up 08:40:19 - 09:10:19 2116
Kingman/Dolan Springs 08:55:19 -68.0 Dark Up 35.4 244.5 Up 08:40:19 - 09:10:19 2095
Laughlin/Bullhead City 08:55:21 -68.3 Dark Up 35.8 244.1 Up 08:40:21 - 09:10:21 2086
Mohave Valley 08:55:20 -68.5 Dark Up 35.9 244.2 Up 08:40:20 - 09:10:20 2063
Lake Havasu City 08:55:18 -68.7 Dark Up 35.9 244.7 Up 08:40:18 - 09:10:18 2032
CPSLO 08:55:38 -71.3 Dark Up 40.1 238.7 Up 08:40:38 - 09:10:38 2020
Parker 08:55:17 -68.9 Dark Up 36.1 245.0 Up 08:40:17 - 09:10:17 2002
George/Scottsdale 08:55:09 -67.6 Dark Up 34.4 247.2 Up 08:40:09 - 09:10:09 1996
Blythe 08:55:16 -69.4 Dark Up 36.5 245.1 Up 08:40:16 - 09:10:16 1953
Wildwood 08:55:29 -71.3 Dark Up 39.2 241.4 Up 08:40:29 - 09:10:29 1943
Idyllwild 08:55:23 -70.6 Dark Up 38.0 243.2 Up 08:40:23 - 09:10:23 1937
Calipatria 08:55:18 -70.3 Dark Up 37.4 244.6 Up 08:40:18 - 09:10:18 1898
Yuma 08:55:14 -70.0 Dark Up 36.9 245.7 Up 08:40:14 - 09:10:14 1872

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 05TV189, (2022/01/25 08:58UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  9.45 123
Alhena         06:37:42.8 +16:23:57  1.9 13.90 114
PPM 150489     06:25:46.5 +02:16:17  6.4  0.72 115
PPM 150547     06:27:20.4 +02:54:30  6.6  0.28 115
05TV189        06:28:05.6 +02:42:17 16.9       114
Positions are for J2000

Event circumstances last updated at 2021/12/03 01:45:03 UT

Marc W. Buie, Southwest Research Institute

RECON