RECON: TNO occultation with 03WA191

Event between 03WA191 and star GA1080:02315096 with event index number of 1074058

Geocentric closest approach at 2022/01/10 03:46:11 UTC

J2000 position of star is 06:42:56.1 +18:29:30
Equinox of date position of star is 06:44:09.9 +18:28:10
Stellar brightness G=15.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 76 degrees from the moon. Moon is 54% illuminated.
TNO apparent brightness V=23.4

[RECON map]
TNO is 32.7 AU from the Sun and 31.7 AU from the Earth.
The TNO is moving 24.3 km/sec on the sky relative to the star, or, 3.8 arcsec/hr.
The 1-sigma error in the time of the event is 629 seconds.
The 1-sigma cross-track error in the shadow position is 1644 km.
The sky-plane scale is 23009.8 km/arcsec.

The TNO has an absolute magnitude Hv=8.3
Diameter=133.0 km assuming a 5% albedo -- 5.5 sec chord
Diameter=54.3 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 03WA191, (2022/01/10 03:46UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:21.9 +07:24:34  0.4 16.06  65
Alhena         06:38:59.0 +16:22:43  1.9  2.44  74
26 Gem         06:43:41.2 +17:37:19  5.3  0.86  76
PPM 122946     06:45:04.6 +18:37:56  8.1  0.26  76
PPM 122915     06:44:01.1 +18:20:57 10.6  0.13  76
03WA191        06:44:13.4 +18:28:07 15.7        76
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 25.2 km RECON observability=1.0 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)
Clarence Fulton 03:48:40 -33.2 Dark Up 37.4 107.1 Up 03:33:40 - 04:03:40 10057
Kelowna 03:48:42 -33.2 Dark Up 37.4 106.7 Up 03:33:42 - 04:03:42 10024
Peachland 03:48:43 -33.0 Dark Up 37.2 106.3 Up 03:33:43 - 04:03:43 10018
Summerland 03:48:43 -33.0 Dark Up 37.3 106.3 Up 03:33:43 - 04:03:43 10004
Penticton 03:48:43 -33.1 Dark Up 37.4 106.4 Up 03:33:43 - 04:03:43 9996
Oliver 03:48:44 -33.1 Dark Up 37.5 106.1 Up 03:33:44 - 04:03:44 9964
Victoria 03:48:52 -30.7 Dark Up 35.3 102.3 Up 03:33:52 - 04:03:52 9962
Anarchist Mountain Observatory 03:48:43 -33.3 Dark Up 37.7 106.2 Up 03:33:43 - 04:03:43 9946
Tonasket 03:48:44 -33.3 Dark Up 37.7 105.9 Up 03:33:44 - 04:03:44 9918
Okanogan 03:48:46 -33.2 Dark Up 37.7 105.5 Up 03:33:46 - 04:03:46 9890
Brewster 03:48:46 -33.1 Dark Up 37.7 105.1 Up 03:33:46 - 04:03:46 9868
Manson/Chelan 03:48:48 -32.8 Dark Up 37.5 104.6 Up 03:33:48 - 04:03:48 9854
Wenatchee 03:48:49 -32.8 Dark Up 37.5 104.1 Up 03:33:49 - 04:03:49 9813
Ellensburg 03:48:50 -32.6 Dark Up 37.5 103.6 Up 03:33:50 - 04:03:50 9778
Yakima 03:48:52 -32.6 Dark Up 37.6 103.3 Up 03:33:52 - 04:03:52 9740
Toppenish/White Swan 03:48:52 -32.8 Dark Up 37.7 103.3 Up 03:33:52 - 04:03:52 9717
Pasco 03:48:50 -33.6 Dark Up 38.6 104.3 Up 03:33:50 - 04:03:50 9686
Goldendale 03:48:54 -32.5 Dark Up 37.6 102.6 Up 03:33:54 - 04:03:54 9672
PNWRO 03:48:50 -33.8 Dark Up 38.8 104.3 Up 03:33:50 - 04:03:50 9660
The Dalles 03:48:55 -32.2 Dark Up 37.4 102.1 Up 03:33:55 - 04:03:55 9657
Maupin 03:48:56 -32.3 Dark Up 37.5 101.9 Up 03:33:56 - 04:03:56 9615
Sisters 03:48:59 -32.0 Dark Up 37.4 100.8 Up 03:33:59 - 04:03:59 9540
Redmond 03:48:58 -32.3 Dark Up 37.6 101.1 Up 03:33:58 - 04:03:58 9531
Bend 03:48:59 -32.2 Dark Up 37.6 100.8 Up 03:33:59 - 04:03:59 9513
Oregon Observatory 03:49:00 -32.1 Dark Up 37.5 100.6 Up 03:34:00 - 04:04:00 9499
La Pine/Gilchrist 03:49:00 -32.0 Dark Up 37.5 100.4 Up 03:34:00 - 04:04:00 9480
North Lake 03:48:59 -32.4 Dark Up 38.0 100.5 Up 03:33:59 - 04:03:59 9429
Paisley 03:49:00 -32.7 Dark Up 38.4 100.4 Up 03:34:00 - 04:04:00 9369
Klamath Falls 03:49:04 -31.8 Dark Up 37.6 99.1 Up 03:34:04 - 04:04:04 9345
Lakeview 03:49:01 -32.8 Dark Up 38.6 100.2 Up 03:34:01 - 04:04:01 9317
Cedarville 03:49:02 -33.0 Dark Up 38.9 99.8 Up 03:34:02 - 04:04:02 9250
Fall River/Burney 03:49:05 -32.0 Dark Up 38.1 98.5 Up 03:34:05 - 04:04:05 9223
Susanville 03:49:05 -32.6 Dark Up 38.7 98.5 Up 03:34:05 - 04:04:05 9149
Greenville 03:49:06 -32.3 Dark Up 38.5 98.1 Up 03:34:06 - 04:04:06 9126
Gimple 03:49:06 -32.4 Dark Up 38.6 98.2 Up 03:34:06 - 04:04:06 9125
Quincy 03:49:07 -32.3 Dark Up 38.6 98.0 Up 03:34:07 - 04:04:07 9106
Portola 03:49:06 -32.7 Dark Up 38.9 98.2 Up 03:34:06 - 04:04:06 9086
Reno 03:49:05 -33.2 Dark Up 39.5 98.5 Up 03:34:05 - 04:04:05 9048
Carson City 03:49:06 -33.2 Dark Up 39.5 98.2 Up 03:34:06 - 04:04:06 9012
Gardnerville 03:49:06 -33.2 Dark Up 39.6 98.0 Up 03:34:06 - 04:04:06 8987
Yerington 03:49:05 -33.7 Dark Up 40.1 98.5 Up 03:34:05 - 04:04:05 8982
Hawthorne 03:49:05 -34.1 Dark Up 40.5 98.5 Up 03:34:05 - 04:04:05 8926
Dunrhomin 03:48:28 -44.2 Dark Up 50.0 111.3 Up 03:33:28 - 04:03:28 8917
Lee Vining 03:49:07 -33.7 Dark Up 40.2 97.7 Up 03:34:07 - 04:04:07 8878
Tonopah 03:49:02 -35.2 Dark Up 41.7 99.1 Up 03:34:02 - 04:04:02 8856
Bishop 03:49:07 -34.2 Dark Up 40.9 97.7 Up 03:34:07 - 04:04:07 8805
Beatty 03:49:03 -35.5 Dark Up 42.2 98.4 Up 03:34:03 - 04:04:03 8730
Indian Springs 03:49:01 -36.3 Dark Up 43.1 98.9 Up 03:34:01 - 04:04:01 8680
CPSLO 03:49:15 -32.3 Dark Up 39.3 94.4 Up 03:34:15 - 04:04:15 8634
Henderson 03:49:00 -36.9 Dark Up 43.8 98.8 Up 03:34:00 - 04:04:00 8613
Patrick 03:48:58 -37.7 Dark Up 44.7 99.0 Up 03:33:58 - 04:03:58 8531
Laughlin/Bullhead City 03:49:01 -37.2 Dark Up 44.2 98.3 Up 03:34:01 - 04:04:01 8517
Kingman/Dolan Springs 03:48:59 -37.6 Dark Up 44.6 98.7 Up 03:33:59 - 04:03:59 8511
Mohave Valley 03:49:01 -37.2 Dark Up 44.3 98.0 Up 03:34:01 - 04:04:01 8488
Wildwood 03:49:12 -33.8 Dark Up 41.1 94.7 Up 03:34:12 - 04:04:12 8473
Lake Havasu City 03:49:01 -37.3 Dark Up 44.5 97.8 Up 03:34:01 - 04:04:01 8443
Parker 03:49:02 -37.4 Dark Up 44.6 97.5 Up 03:34:02 - 04:04:02 8406
Idyllwild 03:49:09 -35.3 Dark Up 42.7 95.6 Up 03:34:09 - 04:04:09 8403
Blythe 03:49:03 -37.1 Dark Up 44.4 96.8 Up 03:34:03 - 04:04:03 8356
George/Scottsdale 03:48:56 -39.3 Dark Up 46.6 98.7 Up 03:33:56 - 04:03:56 8324
Calipatria 03:49:06 -36.3 Dark Up 43.7 95.7 Up 03:34:06 - 04:04:06 8319
Yuma 03:49:04 -37.0 Dark Up 44.5 95.9 Up 03:34:04 - 04:04:04 8259

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 03WA191, (2022/01/10 03:46UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 16.06  65
Alhena         06:37:42.8 +16:23:57  1.9  2.44  74
26 Gem         06:42:24.3 +17:38:42  5.3  0.86  76
PPM 122946     06:43:47.1 +18:39:21  8.1  0.26  76
PPM 122915     06:42:43.8 +18:22:20 10.6  0.13  76
03WA191        06:42:56.1 +18:29:30 15.7        76
Positions are for J2000

Event circumstances last updated at 2021/01/04 22:12:19 UT

Marc W. Buie, Southwest Research Institute

RECON