RECON: TNO occultation with 06QJ181

Event between 06QJ181 and star GA1040:01708147 with event index number of 2013849

Geocentric closest approach at 2021/11/25 12:58:07 UTC

J2000 position of star is 06:17:53.7 +14:48:01
Equinox of date position of star is 06:19:08.2 +14:47:26
Stellar brightness G=16.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 39 degrees from the moon. Moon is 69% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 31.9 AU from the Sun and 31.1 AU from the Earth.
The TNO is moving 20.3 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 366 seconds.
The 1-sigma cross-track error in the shadow position is 3064 km.
The sky-plane scale is 22547.0 km/arcsec.

The TNO has an absolute magnitude Hv=6.9
Diameter=245.5 km assuming a 5% albedo -- 12.1 sec chord
Diameter=100.2 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is 3:1EE+3:1II
 
 
 
 
 
 

Star training set for 06QJ181, (2021/11/25 12:58UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:21.5 +07:24:34  0.4  9.26  46
Alhena         06:38:58.6 +16:22:43  1.9  5.03  34
PPM 122243     06:19:20.4 +14:22:23  6.2  0.42  39
PPM 122233     06:18:46.2 +14:31:56  9.2  0.27  39
06QJ181        06:19:08.7 +14:47:26 16.3        38
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 2.5 sigma about the mid-time.
The median site spacing is 26.7 km RECON observability=1.0 and success probability=15.0%
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 12:55:13 -23.6 Dark Up 39.5 241.8 Up 12:40:13 - 13:10:13 2482
Kelowna 12:55:13 -23.7 Dark Up 39.7 241.9 Up 12:40:13 - 13:10:13 2445
Peachland 12:55:13 -23.9 Dark Up 40.0 241.7 Up 12:40:13 - 13:10:13 2434
Summerland 12:55:13 -23.8 Dark Up 40.0 241.9 Up 12:40:13 - 13:10:13 2420
Penticton 12:55:13 -23.7 Dark Up 40.0 242.1 Up 12:40:13 - 13:10:13 2414
Oliver 12:55:11 -23.7 Dark Up 40.1 242.3 Up 12:40:11 - 13:10:11 2381
Anarchist Mountain Observatory 12:55:11 -23.5 Dark Up 40.1 242.6 Up 12:40:11 - 13:10:11 2366
Tonasket 12:55:11 -23.6 Dark Up 40.3 242.8 Up 12:40:11 - 13:10:11 2336
Victoria 12:55:21 -26.1 Dark Up 42.6 238.9 Up 12:40:21 - 13:10:21 2307
Okanogan 12:55:10 -23.6 Dark Up 40.5 242.9 Up 12:40:10 - 13:10:10 2303
Brewster 12:55:10 -23.7 Dark Up 40.8 242.9 Up 12:40:10 - 13:10:10 2276
Manson/Chelan 12:55:11 -24.0 Dark Up 41.1 242.7 Up 12:40:11 - 13:10:11 2255
Wenatchee 12:55:11 -24.0 Dark Up 41.4 242.9 Up 12:40:11 - 13:10:11 2209
Ellensburg 12:55:09 -24.2 Dark Up 41.7 243.0 Up 12:40:09 - 13:10:09 2168
Yakima 12:55:09 -24.1 Dark Up 41.9 243.3 Up 12:40:09 - 13:10:09 2129
Toppenish/White Swan 12:55:08 -24.0 Dark Up 41.9 243.6 Up 12:40:08 - 13:10:08 2108
Pasco 12:55:05 -23.1 Dark Up 41.2 245.0 Up 12:40:05 - 13:10:05 2101
PNWRO 12:55:04 -22.9 Dark Up 41.1 245.4 Up 12:40:04 - 13:10:04 2077
Goldendale 12:55:09 -24.2 Dark Up 42.4 243.7 Up 12:40:09 - 13:10:09 2053
The Dalles 12:55:09 -24.5 Dark Up 42.7 243.5 Up 12:40:09 - 13:10:09 2029
Maupin 12:55:08 -24.4 Dark Up 42.9 243.9 Up 12:40:08 - 13:10:08 1989
Sisters 12:55:08 -24.6 Dark Up 43.6 244.2 Up 12:40:08 - 13:10:08 1900
Redmond 12:55:07 -24.3 Dark Up 43.3 244.6 Up 12:40:07 - 13:10:07 1899
Bend 12:55:07 -24.4 Dark Up 43.5 244.6 Up 12:40:07 - 13:10:07 1877
Oregon Observatory 12:55:07 -24.5 Dark Up 43.7 244.7 Up 12:40:07 - 13:10:07 1860
La Pine/Gilchrist 12:55:07 -24.5 Dark Up 43.8 244.8 Up 12:40:07 - 13:10:07 1839
North Lake 12:55:04 -24.0 Dark Up 43.6 245.7 Up 12:40:04 - 13:10:04 1797
Paisley 12:55:02 -23.7 Dark Up 43.6 246.6 Up 12:40:02 - 13:10:02 1743
Chiloquin 12:55:06 -24.6 Dark Up 44.5 245.4 Up 12:40:06 - 13:10:06 1726
Lakeview 12:55:01 -23.5 Dark Up 43.6 247.2 Up 12:40:01 - 13:10:01 1693
Klamath Falls 12:55:05 -24.6 Dark Up 44.6 245.8 Up 12:40:05 - 13:10:05 1692
Cedarville 12:54:59 -23.3 Dark Up 43.8 247.9 Up 12:39:59 - 13:09:59 1627
Dunrhomin 12:54:16 -12.1 AT Up 33.3 261.0 Up 12:39:16 - 13:09:16 1600
Fall River/Burney 12:55:02 -24.1 Dark Up 44.8 247.2 Up 12:40:02 - 13:10:02 1573
Susanville 12:54:59 -23.5 Dark Up 44.5 248.5 Up 12:39:59 - 13:09:59 1511
Gimple 12:54:59 -23.6 Dark Up 44.8 248.5 Up 12:39:59 - 13:09:59 1482
Greenville 12:55:00 -23.7 Dark Up 44.8 248.5 Up 12:40:00 - 13:10:00 1482
Quincy 12:54:59 -23.7 Dark Up 44.9 248.6 Up 12:39:59 - 13:09:59 1461
Portola 12:54:57 -23.3 Dark Up 44.6 249.2 Up 12:39:57 - 13:09:57 1450
Reno 12:54:55 -22.8 Dark Up 44.2 250.0 Up 12:39:55 - 13:09:55 1425
Carson City 12:54:55 -22.7 Dark Up 44.4 250.4 Up 12:39:55 - 13:09:55 1388
Yerington 12:54:52 -22.2 Dark Up 44.0 251.1 Up 12:39:52 - 13:09:52 1370
Gardnerville 12:54:54 -22.6 Dark Up 44.4 250.6 Up 12:39:54 - 13:09:54 1363
Hawthorne 12:54:50 -21.7 Dark Up 43.7 252.0 Up 12:39:50 - 13:09:50 1324
Tonopah 12:54:45 -20.5 Dark Up 42.8 253.6 Up 12:39:45 - 13:09:45 1283
Lee Vining 12:54:50 -22.0 Dark Up 44.3 252.1 Up 12:39:50 - 13:09:50 1264
Bishop 12:54:47 -21.3 Dark Up 43.9 253.2 Up 12:39:47 - 13:09:47 1205
Beatty 12:54:42 -20.0 Dark Up 42.8 254.9 Up 12:39:42 - 13:09:42 1164
Indian Springs 12:54:38 -19.1 Dark Up 42.0 256.1 Up 12:39:38 - 13:09:38 1136
Henderson 12:54:35 -18.4 Dark Up 41.6 257.0 Up 12:39:35 - 13:09:35 1084
Patrick 12:54:31 -17.4 AT Up 40.9 258.4 Up 12:39:31 - 13:09:31 1026
Kingman/Dolan Springs 12:54:31 -17.5 AT Up 41.1 258.4 Up 12:39:31 - 13:09:31 1001
Laughlin/Bullhead City 12:54:33 -17.9 AT Up 41.5 258.1 Up 12:39:33 - 13:09:33 995
CPSLO 12:54:52 -22.7 Dark Up 46.2 253.3 Up 12:39:52 - 13:09:52 978
Mohave Valley 12:54:32 -17.8 AT Up 41.6 258.3 Up 12:39:32 - 13:09:32 966
Lake Havasu City 12:54:31 -17.5 AT Up 41.4 258.9 Up 12:39:31 - 13:09:31 926
Parker 12:54:30 -17.4 AT Up 41.5 259.2 Up 12:39:30 - 13:09:30 888
George/Scottsdale 12:54:22 -15.4 AT Up 39.6 261.2 Up 12:39:22 - 13:09:22 861
Wildwood 12:54:44 -20.9 Dark Up 44.9 256.1 Up 12:39:44 - 13:09:44 859
Blythe 12:54:31 -17.5 AT Up 41.8 259.4 Up 12:39:31 - 13:09:31 831
Idyllwild 12:54:37 -19.3 Dark Up 43.5 257.9 Up 12:39:37 - 13:09:37 831
Calipatria 12:54:33 -18.2 Dark Up 42.7 259.2 Up 12:39:33 - 13:09:33 772
Yuma 12:54:29 -17.4 AT Up 42.0 260.2 Up 12:39:29 - 13:09:29 732

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 06QJ181, (2021/11/25 12:58UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  9.26  46
Alhena         06:37:42.8 +16:23:57  1.9  5.03  34
PPM 122243     06:18:05.6 +14:22:58  6.2  0.42  39
PPM 122233     06:17:31.3 +14:32:31  9.2  0.27  39
06QJ181        06:17:53.7 +14:48:01 16.3        39
Positions are for J2000

Event circumstances last updated at 2021/10/03 01:35:19 UT

Marc W. Buie, Southwest Research Institute

RECON