RECON: TNO occultation with 03WA191

Event between 03WA191 and star GA1080:02302196 with event index number of 1074059

Geocentric closest approach at 2022/01/17 10:39:02 UTC

J2000 position of star is 06:42:10.4 +18:30:34
Equinox of date position of star is 06:43:27.5 +18:29:13
Stellar brightness G=15.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 14 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=23.4

[RECON map]
TNO is 32.7 AU from the Sun and 31.8 AU from the Earth.
The TNO is moving 23.4 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 254 seconds.
The 1-sigma cross-track error in the shadow position is 1978 km.
The sky-plane scale is 23031.7 km/arcsec.

The TNO has an absolute magnitude Hv=8.3
Diameter=132.4 km assuming a 5% albedo -- 5.7 sec chord
Diameter=54.1 km assuming a 30% albedo -- 2.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 03WA191, (2022/01/17 10:39UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:22.0 +07:24:34  0.4 15.93  30
Alhena         06:38:59.1 +16:22:43  1.9  2.36  16
26 Gem         06:43:41.3 +17:37:19  5.3  0.87  14
PPM 122870     06:42:30.7 +18:33:15  8.4  0.24  14
PPM 122915     06:44:01.2 +18:20:57 10.6  0.19  14
03WA191        06:43:27.9 +18:29:12 15.2        14
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 3.5 sigma about the mid-time.
The median site spacing is 21.1 km RECON observability=1.0 and success probability=14.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:36:46 -40.0 Dark Up 27.0 265.7 Low 10:21:46 - 10:51:46 -2023
Kamloops 10:37:00 -48.7 Dark Up 36.1 254.4 Up 10:22:00 - 10:52:00 -2451
Kelowna 10:36:55 -48.6 Dark Up 35.7 255.7 Up 10:21:55 - 10:51:55 -2491
Peachland 10:36:56 -48.8 Dark Up 35.9 255.5 Up 10:21:56 - 10:51:56 -2506
Summerland 10:36:55 -48.9 Dark Up 35.9 255.7 Up 10:21:55 - 10:51:55 -2516
Penticton 10:36:54 -48.8 Dark Up 35.9 255.9 Up 10:21:54 - 10:51:54 -2518
Oliver 10:36:53 -49.0 Dark Up 36.0 256.1 Up 10:21:53 - 10:51:53 -2545
Anarchist Mountain Observatory 10:36:52 -49.0 Dark Up 35.9 256.4 Up 10:21:52 - 10:51:52 -2553
Tonasket 10:36:51 -49.2 Dark Up 36.0 256.6 Up 10:21:51 - 10:51:51 -2579
Okanogan 10:36:50 -49.4 Dark Up 36.2 256.7 Up 10:21:50 - 10:51:50 -2608
Brewster 10:36:50 -49.7 Dark Up 36.4 256.7 Up 10:21:50 - 10:51:50 -2634
Manson/Chelan 10:36:50 -50.0 Dark Up 36.7 256.5 Up 10:21:50 - 10:51:50 -2659
Victoria 10:36:58 -51.5 Dark Up 38.6 253.2 Up 10:21:58 - 10:51:58 -2686
Wenatchee 10:36:49 -50.4 Dark Up 36.9 256.7 Up 10:21:49 - 10:51:49 -2701
Ellensburg 10:36:48 -50.7 Dark Up 37.1 256.8 Up 10:21:48 - 10:51:48 -2739
Pasco 10:36:43 -50.2 Dark Up 36.3 258.5 Up 10:21:43 - 10:51:43 -2763
Yakima 10:36:47 -50.9 Dark Up 37.2 257.1 Up 10:21:47 - 10:51:47 -2771
PNWRO 10:36:42 -50.2 Dark Up 36.2 258.9 Up 10:21:42 - 10:51:42 -2777
Toppenish/White Swan 10:36:45 -50.9 Dark Up 37.2 257.4 Up 10:21:45 - 10:51:45 -2785
Goldendale 10:36:45 -51.4 Dark Up 37.6 257.5 Up 10:21:45 - 10:51:45 -2840
The Dalles 10:36:45 -51.8 Dark Up 37.9 257.3 Up 10:21:45 - 10:51:45 -2867
Dunrhomin 10:36:03 -42.4 Dark Up 26.8 272.2 Low 10:21:03 - 10:51:03 -2873
Maupin 10:36:43 -51.9 Dark Up 37.9 257.7 Up 10:21:43 - 10:51:43 -2898
Redmond 10:36:40 -52.4 Dark Up 38.2 258.3 Up 10:21:40 - 10:51:40 -2975
Sisters 10:36:41 -52.6 Dark Up 38.4 258.0 Up 10:21:41 - 10:51:41 -2983
Bend 10:36:40 -52.6 Dark Up 38.3 258.4 Up 10:21:40 - 10:51:40 -2996
Oregon Observatory 10:36:40 -52.7 Dark Up 38.4 258.4 Up 10:21:40 - 10:51:40 -3014
La Pine/Gilchrist 10:36:40 -52.9 Dark Up 38.5 258.5 Up 10:21:40 - 10:51:40 -3033
North Lake 10:36:37 -52.7 Dark Up 38.2 259.3 Up 10:21:37 - 10:51:37 -3054
Paisley 10:36:35 -52.7 Dark Up 38.0 260.0 Up 10:21:35 - 10:51:35 -3091
Lakeview 10:36:33 -52.8 Dark Up 38.0 260.6 Up 10:21:33 - 10:51:33 -3129
Chiloquin 10:36:37 -53.6 Dark Up 39.0 259.1 Up 10:21:37 - 10:51:37 -3136
Klamath Falls 10:36:36 -53.7 Dark Up 39.0 259.4 Up 10:21:36 - 10:51:36 -3163
Cedarville 10:36:31 -52.9 Dark Up 38.0 261.2 Up 10:21:31 - 10:51:31 -3180
Fall River/Burney 10:36:32 -53.9 Dark Up 38.9 260.6 Up 10:21:32 - 10:51:32 -3254
Susanville 10:36:28 -53.7 Dark Up 38.5 261.7 Up 10:21:28 - 10:51:28 -3289
Gimple 10:36:28 -53.9 Dark Up 38.7 261.8 Up 10:21:28 - 10:51:28 -3319
Greenville 10:36:28 -54.0 Dark Up 38.8 261.7 Up 10:21:28 - 10:51:28 -3321
Portola 10:36:26 -53.8 Dark Up 38.4 262.3 Up 10:21:26 - 10:51:26 -3337
Quincy 10:36:27 -54.1 Dark Up 38.8 261.9 Up 10:21:27 - 10:51:27 -3339
Reno 10:36:24 -53.4 Dark Up 38.0 263.0 Up 10:21:24 - 10:51:24 -3342
Yerington 10:36:21 -53.1 Dark Up 37.6 263.8 Up 10:21:21 - 10:51:21 -3373
Carson City 10:36:23 -53.5 Dark Up 38.0 263.3 Up 10:21:23 - 10:51:23 -3373
Gardnerville 10:36:23 -53.6 Dark Up 38.0 263.5 Up 10:21:23 - 10:51:23 -3393
Hawthorne 10:36:19 -52.9 Dark Up 37.2 264.6 Up 10:21:19 - 10:51:19 -3399
Tonopah 10:36:15 -52.0 Dark Up 36.1 265.8 Up 10:21:15 - 10:51:15 -3400
Lee Vining 10:36:18 -53.4 Dark Up 37.6 264.7 Up 10:21:18 - 10:51:18 -3462
Indian Springs 10:36:08 -51.2 Dark Up 35.0 267.9 Up 10:21:08 - 10:51:08 -3488
Beatty 10:36:11 -51.9 Dark Up 35.9 267.0 Up 10:21:11 - 10:51:11 -3490
Bishop 10:36:15 -53.0 Dark Up 37.1 265.6 Up 10:21:15 - 10:51:15 -3495
Henderson 10:36:05 -50.7 Dark Up 34.5 268.6 Up 10:21:05 - 10:51:05 -3515
Patrick 10:36:01 -50.0 Dark Up 33.6 269.7 Up 10:21:01 - 10:51:01 -3538
Kingman/Dolan Springs 10:36:01 -50.2 Dark Up 33.8 269.8 Up 10:21:01 - 10:51:01 -3563
Laughlin/Bullhead City 10:36:02 -50.6 Dark Up 34.2 269.5 Up 10:21:02 - 10:51:02 -3581
Mohave Valley 10:36:01 -50.6 Dark Up 34.2 269.7 Up 10:21:01 - 10:51:01 -3606
George/Scottsdale 10:35:53 -48.6 Dark Up 32.0 271.9 Up 10:20:53 - 10:50:53 -3630
Lake Havasu City 10:36:00 -50.5 Dark Up 34.0 270.1 Up 10:21:00 - 10:51:00 -3634
Parker 10:35:59 -50.5 Dark Up 34.0 270.3 Up 10:20:59 - 10:50:59 -3665
Blythe 10:35:58 -50.9 Dark Up 34.2 270.5 Up 10:20:58 - 10:50:58 -3722
CPSLO 10:36:14 -55.4 Dark Up 39.1 265.7 Up 10:21:14 - 10:51:14 -3747
Idyllwild 10:36:02 -52.6 Dark Up 36.0 269.3 Up 10:21:02 - 10:51:02 -3774
Calipatria 10:35:58 -51.7 Dark Up 35.0 270.3 Up 10:20:58 - 10:50:58 -3795
Wildwood 10:36:07 -54.0 Dark Up 37.5 267.9 Up 10:21:07 - 10:51:07 -3798
Yuma 10:35:56 -51.0 Dark Up 34.2 271.1 Up 10:20:56 - 10:50:56 -3808

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, (2022/01/17 10:39UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 15.93  30
Alhena         06:37:42.8 +16:23:57  1.9  2.36  16
26 Gem         06:42:24.3 +17:38:42  5.3  0.87  14
PPM 122870     06:41:13.2 +18:34:35  8.4  0.24  14
PPM 122915     06:42:43.8 +18:22:20 10.6  0.19  14
03WA191        06:42:10.4 +18:30:34 15.2        14
Positions are for J2000

Event circumstances last updated at 2021/12/03 01:44:32 UT

Marc W. Buie, Southwest Research Institute

RECON