RECON: TNO occultation with 06QG181

Event between 06QG181 and star GA1180:01621918 with event index number of 1086482

Geocentric closest approach at 2021/10/26 07:11:14 UTC

J2000 position of star is 05:36:24.8 +28:31:23
Equinox of date position of star is 05:37:41.5 +28:32:04
Stellar brightness G=15.8, use SENSEUP=128
Star is 10 degrees from the moon. Moon is 74% illuminated.
TNO apparent brightness V=25.4

[RECON map]
TNO is 34.0 AU from the Sun and 33.4 AU from the Earth.
The TNO is moving 14.1 km/sec on the sky relative to the star, or, 2.1 arcsec/hr.
The 1-sigma error in the time of the event is 796 seconds.
The 1-sigma cross-track error in the shadow position is 2567 km.
The sky-plane scale is 24236.1 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=94.6 km assuming a 5% albedo -- 4.3 sec chord
Diameter=38.6 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 06QG181, (2021/10/26 07:11UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:10.5 +16:33:05  0.8 18.39  27
Alnath         05:27:40.4 +28:37:26  1.6  2.22  13
PPM 094619     05:40:41.6 +29:13:33  5.9  0.94  10
PPM 094505     05:36:01.6 +28:03:51  8.3  0.61  11
PPM 094558     05:37:57.8 +29:01:53 10.0  0.50  11
PPM 094567     05:38:22.8 +28:12:39 10.3  0.35  10
06QG181        05:37:47.7 +28:32:07 15.8        10
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 1.1 sigma about the mid-time.
The median site spacing is 25.1 km RECON observability=1.0 and success probability=18.3%
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 07:15:58 -51.9 Dark Up 40.7 92.8 Up 07:00:58 - 07:30:58 2639
Kelowna 07:16:00 -52.3 Dark Up 40.6 92.4 Up 07:01:00 - 07:31:00 2607
Peachland 07:16:02 -52.4 Dark Up 40.4 92.0 Up 07:01:02 - 07:31:02 2603
Summerland 07:16:02 -52.5 Dark Up 40.5 92.0 Up 07:01:02 - 07:31:02 2587
Victoria 07:16:17 -53.0 Dark Up 38.1 88.3 Up 07:01:17 - 07:31:17 2582
Penticton 07:16:02 -52.6 Dark Up 40.6 92.0 Up 07:01:02 - 07:31:02 2578
Oliver 07:16:04 -53.0 Dark Up 40.6 91.7 Up 07:01:04 - 07:31:04 2545
Anarchist Mountain Observatory 07:16:04 -53.2 Dark Up 40.7 91.7 Up 07:01:04 - 07:31:04 2525
Tonasket 07:16:04 -53.5 Dark Up 40.7 91.4 Up 07:01:04 - 07:31:04 2497
Okanogan 07:16:07 -53.8 Dark Up 40.6 91.0 Up 07:01:07 - 07:31:07 2469
Brewster 07:16:09 -54.0 Dark Up 40.5 90.6 Up 07:01:09 - 07:31:09 2448
Manson/Chelan 07:16:11 -54.2 Dark Up 40.2 90.2 Up 07:01:11 - 07:31:11 2438
Entiat 07:16:12 -54.4 Dark Up 40.2 89.9 Up 07:01:12 - 07:31:12 2419
Wenatchee 07:16:13 -54.6 Dark Up 40.1 89.7 Up 07:01:13 - 07:31:13 2397
Ellensburg 07:16:16 -55.0 Dark Up 40.0 89.2 Up 07:01:16 - 07:31:16 2364
Yakima 07:16:17 -55.4 Dark Up 40.0 88.8 Up 07:01:17 - 07:31:17 2325
Toppenish/White Swan 07:16:17 -55.6 Dark Up 40.1 88.8 Up 07:01:17 - 07:31:17 2300
Goldendale 07:16:21 -56.1 Dark Up 39.8 88.0 Up 07:01:21 - 07:31:21 2258
Pasco 07:16:14 -55.9 Dark Up 40.9 89.6 Up 07:01:14 - 07:31:14 2255
The Dalles 07:16:23 -56.2 Dark Up 39.5 87.6 Up 07:01:23 - 07:31:23 2247
PNWRO 07:16:14 -56.2 Dark Up 41.1 89.5 Up 07:01:14 - 07:31:14 2226
Maupin 07:16:24 -56.7 Dark Up 39.6 87.3 Up 07:01:24 - 07:31:24 2204
Sisters 07:16:29 -57.4 Dark Up 39.2 86.3 Up 07:01:29 - 07:31:29 2132
Redmond 07:16:28 -57.5 Dark Up 39.5 86.5 Up 07:01:28 - 07:31:28 2119
Bend 07:16:29 -57.7 Dark Up 39.4 86.2 Up 07:01:29 - 07:31:29 2102
Oregon Observatory 07:16:30 -57.9 Dark Up 39.3 86.0 Up 07:01:30 - 07:31:30 2089
La Pine/Gilchrist 07:16:31 -58.0 Dark Up 39.2 85.8 Up 07:01:31 - 07:31:31 2071
North Lake 07:16:31 -58.6 Dark Up 39.6 85.8 Up 07:01:31 - 07:31:31 2012
Paisley 07:16:32 -59.2 Dark Up 39.8 85.6 Up 07:01:32 - 07:31:32 1948
Klamath Falls 07:16:37 -59.4 Dark Up 38.9 84.5 Up 07:01:37 - 07:31:37 1937
Lakeview 07:16:32 -59.7 Dark Up 39.9 85.3 Up 07:01:32 - 07:31:32 1892
Cedarville 07:16:35 -60.4 Dark Up 40.0 84.9 Up 07:01:35 - 07:31:35 1823
Fall River/Burney 07:16:41 -60.6 Dark Up 39.1 83.8 Up 07:01:41 - 07:31:41 1810
Susanville 07:16:40 -61.4 Dark Up 39.6 83.7 Up 07:01:40 - 07:31:40 1726
Greenville 07:16:42 -61.6 Dark Up 39.3 83.3 Up 07:01:42 - 07:31:42 1707
Gimple 07:16:42 -61.6 Dark Up 39.4 83.3 Up 07:01:42 - 07:31:42 1704
Quincy 07:16:43 -61.8 Dark Up 39.3 83.1 Up 07:01:43 - 07:31:43 1686
Portola 07:16:41 -62.0 Dark Up 39.6 83.3 Up 07:01:41 - 07:31:41 1660
Reno 07:16:40 -62.4 Dark Up 40.1 83.4 Up 07:01:40 - 07:31:40 1615
Carson City 07:16:41 -62.7 Dark Up 40.1 83.2 Up 07:01:41 - 07:31:41 1578
Gardnerville 07:16:42 -63.0 Dark Up 40.1 83.0 Up 07:01:42 - 07:31:42 1552
Yerington 07:16:40 -63.0 Dark Up 40.5 83.3 Up 07:01:40 - 07:31:40 1540
Hawthorne 07:16:40 -63.6 Dark Up 40.9 83.2 Up 07:01:40 - 07:31:40 1478
Lee Vining 07:16:43 -64.0 Dark Up 40.5 82.5 Up 07:01:43 - 07:31:43 1435
Tonopah 07:16:36 -64.2 Dark Up 41.9 83.6 Up 07:01:36 - 07:31:36 1391
Bishop 07:16:42 -64.7 Dark Up 40.9 82.4 Up 07:01:42 - 07:31:42 1353
Niwot 07:15:42 -61.6 Dark Up 51.2 92.9 Up 07:00:42 - 07:30:42 1314
SwRI 07:15:42 -61.7 Dark Up 51.1 92.7 Up 07:00:42 - 07:30:42 1305
Beatty 07:16:38 -65.4 Dark Up 42.2 82.8 Up 07:01:38 - 07:31:38 1259
CPSLO 07:16:56 -66.3 Dark Up 38.9 79.6 Up 07:01:56 - 07:31:56 1211
Indian Springs 07:16:35 -65.9 Dark Up 43.0 83.0 Up 07:01:35 - 07:31:35 1196
Henderson 07:16:33 -66.4 Dark Up 43.5 82.9 Up 07:01:33 - 07:31:33 1121
Searchlight/Boulder City 07:16:35 -67.0 Dark Up 43.4 82.4 Up 07:01:35 - 07:31:35 1060
Patrick 07:16:30 -67.1 Dark Up 44.3 82.8 Up 07:01:30 - 07:31:30 1026
Wildwood 07:16:53 -67.9 Dark Up 40.3 79.5 Up 07:01:53 - 07:31:53 1024
Laughlin/Bullhead City 07:16:34 -67.3 Dark Up 43.7 82.3 Up 07:01:34 - 07:31:34 1020
Kingman/Dolan Springs 07:16:32 -67.3 Dark Up 44.1 82.5 Up 07:01:32 - 07:31:32 1008
Mohave Valley 07:16:34 -67.6 Dark Up 43.7 82.0 Up 07:01:34 - 07:31:34 991
DCO 07:16:28 -67.4 Dark Up 44.8 82.9 Up 07:01:28 - 07:31:28 975
Lake Havasu City 07:16:35 -68.0 Dark Up 43.8 81.7 Up 07:01:35 - 07:31:35 942
Idyllwild 07:16:46 -68.6 Dark Up 41.8 80.0 Up 07:01:46 - 07:31:46 931
Parker 07:16:35 -68.4 Dark Up 43.8 81.4 Up 07:01:35 - 07:31:35 905
Blythe 07:16:38 -68.9 Dark Up 43.5 80.8 Up 07:01:38 - 07:31:38 858
Calipatria 07:16:43 -69.3 Dark Up 42.6 80.0 Up 07:01:43 - 07:31:43 833
George/Scottsdale 07:16:26 -68.8 Dark Up 45.7 82.0 Up 07:01:26 - 07:31:26 795
Yuma 07:16:40 -69.8 Dark Up 43.3 79.9 Up 07:01:40 - 07:31:40 763

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 06QG181, (2021/10/26 07:11UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 18.39  27
Alnath         05:26:17.5 +28:36:23  1.6  2.22  13
PPM 094619     05:39:18.3 +29:12:54  5.9  0.94  10
PPM 094505     05:34:39.1 +28:03:04  8.3  0.61  11
PPM 094558     05:36:34.6 +29:01:10 10.0  0.50  11
PPM 094567     05:37:00.2 +28:11:57 10.3  0.35  10
06QG181        05:36:24.8 +28:31:23 15.8        10
Positions are for J2000

Event circumstances last updated at 2020/03/12 00:18:53 UT

Marc W. Buie, Southwest Research Institute

RECON