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 06:44:04.3 +18:28:17
Stellar brightness G=15.7, use SENSEUP=128
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 2417 seconds.
The 1-sigma cross-track error in the shadow position is 4677 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 0.4 sigma about the mid-time.
The median site spacing is 22.1 km RECON observability=1.0 and success probability=4.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 03:48:41 -33.2 Dark Up 37.4 106.8 Up 03:33:41 - 04:03:41 10026
Summerland 03:48:43 -33.0 Dark Up 37.3 106.3 Up 03:33:43 - 04:03:43 10003
Penticton 03:48:42 -33.1 Dark Up 37.4 106.4 Up 03:33:42 - 04:03:42 9996
Okanagan Falls 03:48:43 -33.1 Dark Up 37.5 106.2 Up 03:33:43 - 04:03:43 9979
Oliver 03:48:44 -33.1 Dark Up 37.5 106.1 Up 03:33:44 - 04:03:44 9964
Anarchist Mountain Observatory 03:48:43 -33.3 Dark Up 37.7 106.2 Up 03:33:43 - 04:03:43 9945
Oroville 03:48:44 -33.2 Dark Up 37.7 106.0 Up 03:33:44 - 04:03:44 9940
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 03:48:47 -33.1 Dark Up 37.7 105.1 Up 03:33:47 - 04:03:47 9868
Manson/Chelan 03:48:47 -32.8 Dark Up 37.5 104.6 Up 03:33:47 - 04:03:47 9854
Entiat 03:48:49 -32.8 Dark Up 37.5 104.4 Up 03:33:49 - 04:03:49 9835
Wenatchee 03:48:49 -32.8 Dark Up 37.5 104.1 Up 03:33:49 - 04:03:49 9812
Ellensburg 03:48:51 -32.6 Dark Up 37.5 103.7 Up 03:33:51 - 04:03:51 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 03:48:53 -32.5 Dark Up 37.6 102.5 Up 03:33:53 - 04:03:53 9672
PNWRO 03:48:50 -33.8 Dark Up 38.8 104.3 Up 03:33:50 - 04:03:50 9660
George/Umatilla 03:48:51 -33.5 Dark Up 38.5 103.9 Up 03:33:51 - 04:03:51 9658
The Dalles 03:48:55 -32.2 Dark Up 37.4 102.1 Up 03:33:55 - 04:03:55 9656
Maupin 03:48:55 -32.3 Dark Up 37.5 101.9 Up 03:33:55 - 04:03:55 9615
Madras/Culver 03:48:57 -32.3 Dark Up 37.6 101.4 Up 03:33:57 - 04:03:57 9564
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 03:48:59 -32.1 Dark Up 37.5 100.6 Up 03:33:59 - 04:03:59 9498
La Pine/Gilchrist 03:49:00 -32.0 Dark Up 37.5 100.4 Up 03:34:00 - 04:04:00 9480
North Lake 03:49:00 -32.4 Dark Up 38.0 100.5 Up 03:34:00 - 04:04:00 9428
Chiloquin 03:49:03 -31.7 Dark Up 37.5 99.3 Up 03:34:03 - 04:04:03 9379
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 9344
Lakeview 03:49:01 -32.8 Dark Up 38.6 100.2 Up 03:34:01 - 04:04:01 9316
Tulelake 03:49:04 -32.0 Dark Up 37.9 99.1 Up 03:34:04 - 04:04:04 9313
Cedarville 03:49:02 -33.0 Dark Up 38.9 99.8 Up 03:34:02 - 04:04:02 9249
Fall River/Burney 03:49:06 -32.0 Dark Up 38.1 98.5 Up 03:34:06 - 04:04:06 9223
Susanville 03:49:05 -32.6 Dark Up 38.7 98.5 Up 03:34:05 - 04:04:05 9148
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 9124
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 9085
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 9011
Gardnerville 03:49:06 -33.2 Dark Up 39.6 98.0 Up 03:34:06 - 04:04:06 8986
Yerington 03:49:05 -33.7 Dark Up 40.1 98.5 Up 03:34:05 - 04:04:05 8981
Hawthorne 03:49:05 -34.1 Dark Up 40.5 98.5 Up 03:34:05 - 04:04:05 8926
Niwot 03:48:28 -44.3 Dark Up 50.1 111.1 Up 03:33:28 - 04:03:28 8902
SwRI 03:48:29 -44.2 Dark Up 50.1 110.9 Up 03:33:29 - 04:03:29 8892
Lee Vining 03:49:07 -33.7 Dark Up 40.2 97.7 Up 03:34:07 - 04:04:07 8877
Tonopah 03:49:02 -35.2 Dark Up 41.7 99.1 Up 03:34:02 - 04:04:02 8855
Bishop 03:49:06 -34.2 Dark Up 40.9 97.7 Up 03:34:06 - 04:04:06 8804
Beatty 03:49:03 -35.5 Dark Up 42.2 98.4 Up 03:34:03 - 04:04:03 8730
Lone Pine 03:49:07 -34.4 Dark Up 41.2 97.2 Up 03:34:07 - 04:04:07 8721
Indian Springs 03:49:01 -36.3 Dark Up 43.1 98.9 Up 03:34:01 - 04:04:01 8679
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
Searchlight/Boulder City 03:49:01 -36.9 Dark Up 43.9 98.3 Up 03:34:01 - 04:04:01 8553
Patrick 03:48:58 -37.7 Dark Up 44.8 99.0 Up 03:33:58 - 04:03:58 8531
Laughlin/Bullhead City 03:49:00 -37.2 Dark Up 44.2 98.3 Up 03:34:00 - 04:04:00 8517
Kingman/Dolan Springs 03:48:59 -37.6 Dark Up 44.6 98.7 Up 03:33:59 - 04:03:59 8511
DCO 03:48:57 -38.3 Dark Up 45.4 99.2 Up 03:33:57 - 04:03:57 8489
Mohave Valley 03:49:02 -37.2 Dark Up 44.3 98.0 Up 03:34:02 - 04:04:02 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 03:49:01 -37.4 Dark Up 44.6 97.5 Up 03:34:01 - 04:04:01 8406
Idyllwild 03:49:08 -35.3 Dark Up 42.7 95.6 Up 03:34:08 - 04:04:08 8403
Blythe 03:49:03 -37.1 Dark Up 44.4 96.8 Up 03:34:03 - 04:04:03 8356
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 2019/06/08 02:56:12 UT

Marc W. Buie, Southwest Research Institute

RECON