RECON: TNO occultation with 472262

Event between (472262) 14QN441 and star GA0860:00264419 with event index number of 2310121

Geocentric closest approach at 2021/12/13 02:03:37 UTC

J2000 position of star is 03:15:44.4 -03:40:58
Equinox of date position of star is 03:16:49.9 -03:36:12
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 34 degrees from the moon. Moon is 70% illuminated.
TNO apparent brightness V=22.1

[RECON map]
TNO is 33.6 AU from the Sun and 32.8 AU from the Earth.
The TNO is moving 19.6 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 88 seconds.
The 1-sigma cross-track error in the shadow position is 1253 km.
The sky-plane scale is 23787.2 km/arcsec.

The TNO has an absolute magnitude Hv=6.8
Diameter=265.5 km assuming a 5% albedo -- 13.6 sec chord
Diameter=108.4 km assuming a 30% albedo -- 5.6 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 472262, (2021/12/13 02:04UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:11.0 +16:33:06  0.8 28.29  55
Menkar         03:03:25.8 +04:10:28  2.5  8.47  31
PPM 185494     03:12:24.8 -03:43:48  6.0  1.11  33
PPM 185598     03:17:47.0 -03:27:03  7.8  0.28  35
472262         03:16:50.5 -03:36:09 16.7        35
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 5.0 sigma about the mid-time.
The median site spacing is 22.3 km RECON observability=0.7 and success probability=11.1%
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 02:06:36 -20.0 Dark Up 18.7 120.8 Really Low 01:58:44 - 02:14:27 -1440
Kelowna 02:06:37 -19.8 Dark Up 18.8 120.6 Really Low 01:58:46 - 02:14:29 -1468
Peachland 02:06:38 -19.6 Dark Up 18.7 120.3 Really Low 01:58:47 - 02:14:30 -1477
Summerland 02:06:39 -19.6 Dark Up 18.8 120.3 Really Low 01:58:47 - 02:14:30 -1487
Penticton 02:06:39 -19.7 Dark Up 18.9 120.4 Really Low 01:58:47 - 02:14:30 -1492
Oliver 02:06:40 -19.6 Dark Up 19.1 120.3 Really Low 01:58:48 - 02:14:31 -1517
Anarchist Mountain Observatory 02:06:40 -19.7 Dark Up 19.3 120.4 Really Low 01:58:49 - 02:14:32 -1528
Tonasket 02:06:41 -19.6 Dark Up 19.4 120.3 Really Low 01:58:50 - 02:14:33 -1551
Okanogan 02:06:43 -19.4 Dark Up 19.5 120.0 Really Low 01:58:51 - 02:14:34 -1576
Victoria 02:06:50 -17.0 AT Up 17.2 116.9 Really Low 01:58:58 - 02:14:41 -1584
Brewster 02:06:44 -19.2 Dark Up 19.5 119.8 Really Low 01:58:53 - 02:14:36 -1597
Manson/Chelan 02:06:45 -18.9 Dark Up 19.4 119.4 Really Low 01:58:54 - 02:14:37 -1614
Wenatchee 02:06:47 -18.7 Dark Up 19.5 119.1 Really Low 01:58:56 - 02:14:39 -1650
Ellensburg 02:06:49 -18.4 Dark Up 19.6 118.8 Really Low 01:58:58 - 02:14:41 -1682
Yakima 02:06:51 -18.3 Dark Up 19.8 118.7 Really Low 01:58:59 - 02:14:42 -1712
Toppenish/White Swan 02:06:51 -18.4 Dark Up 20.0 118.8 Low 01:59:00 - 02:14:43 -1728
Pasco 02:06:49 -19.2 Dark Up 20.8 119.8 Low 01:58:57 - 02:14:40 -1730
PNWRO 02:06:49 -19.3 Dark Up 21.1 119.9 Low 01:58:57 - 02:14:40 -1748
Goldendale 02:06:54 -18.0 AT Up 20.0 118.2 Low 01:59:02 - 02:14:45 -1772
The Dalles 02:06:55 -17.7 AT Up 19.9 117.9 Really Low 01:59:04 - 02:14:47 -1791
Maupin 02:06:56 -17.6 AT Up 20.2 117.8 Low 01:59:05 - 02:14:48 -1823
Redmond 02:06:59 -17.3 AT Up 20.5 117.5 Low 01:59:08 - 02:14:51 -1894
Sisters 02:07:00 -17.1 AT Up 20.3 117.1 Low 01:59:09 - 02:14:52 -1894
Bend 02:07:00 -17.2 AT Up 20.6 117.3 Low 01:59:09 - 02:14:52 -1911
Oregon Observatory 02:07:01 -17.1 AT Up 20.5 117.1 Low 01:59:10 - 02:14:53 -1925
La Pine/Gilchrist 02:07:02 -17.0 AT Up 20.6 117.0 Low 01:59:11 - 02:14:54 -1942
North Lake 02:07:02 -17.3 AT Up 21.2 117.3 Low 01:59:11 - 02:14:54 -1973
Paisley 02:07:03 -17.4 AT Up 21.7 117.4 Low 01:59:11 - 02:14:54 -2016
Chiloquin 02:07:06 -16.4 AT Up 20.9 116.3 Low 01:59:15 - 02:14:58 -2033
Lakeview 02:07:04 -17.4 AT Up 22.0 117.4 Low 01:59:12 - 02:14:55 -2056
Klamath Falls 02:07:07 -16.4 AT Up 21.1 116.3 Low 01:59:16 - 02:14:59 -2061
Cedarville 02:07:05 -17.3 AT Up 22.5 117.3 Low 01:59:14 - 02:14:57 -2108
Dunrhomin 02:06:27 -28.0 Dark Up 32.5 129.8 Up 01:58:35 - 02:14:18 -2129
Fall River/Burney 02:07:10 -16.3 AT Up 21.9 116.2 Low 01:59:18 - 02:15:01 -2155
Susanville 02:07:10 -16.7 AT Up 22.7 116.6 Low 01:59:18 - 02:15:01 -2203
Gimple 02:07:11 -16.4 AT Up 22.6 116.3 Low 01:59:20 - 02:15:03 -2228
Greenville 02:07:11 -16.4 AT Up 22.6 116.2 Low 01:59:20 - 02:15:03 -2228
Quincy 02:07:12 -16.3 AT Up 22.7 116.1 Low 01:59:20 - 02:15:03 -2245
Portola 02:07:11 -16.6 AT Up 23.1 116.5 Low 01:59:20 - 02:15:03 -2253
Reno 02:07:10 -17.0 AT Up 23.6 116.9 Low 01:59:19 - 02:15:02 -2272
Carson City 02:07:11 -17.0 AT Up 23.8 116.8 Low 01:59:20 - 02:15:03 -2302
Yerington 02:07:10 -17.4 AT Up 24.3 117.2 Low 01:59:19 - 02:15:02 -2315
Gardnerville 02:07:12 -16.9 AT Up 24.0 116.7 Low 01:59:20 - 02:15:03 -2322
Hawthorne 02:07:10 -17.6 AT Up 24.9 117.4 Low 01:59:19 - 02:15:02 -2351
Tonopah 02:07:08 -18.6 Dark Up 26.1 118.3 Low 01:59:16 - 02:14:59 -2383
Lee Vining 02:07:13 -17.1 AT Up 24.8 116.8 Low 01:59:21 - 02:15:04 -2403
Bishop 02:07:13 -17.5 AT Up 25.6 117.1 Low 01:59:21 - 02:15:04 -2450
Beatty 02:07:10 -18.6 Dark Up 27.0 118.2 Low 01:59:18 - 02:15:01 -2481
Indian Springs 02:07:07 -19.4 Dark Up 27.9 118.9 Low 01:59:16 - 02:14:59 -2503
Henderson 02:07:07 -19.8 Dark Up 28.6 119.2 Low 01:59:15 - 02:14:58 -2546
Patrick 02:07:05 -20.5 Dark Up 29.7 119.8 Low 01:59:13 - 02:14:56 -2595
Kingman/Dolan Springs 02:07:06 -20.3 Dark Up 29.7 119.5 Low 01:59:14 - 02:14:57 -2616
Laughlin/Bullhead City 02:07:07 -19.9 Dark Up 29.4 119.1 Low 01:59:16 - 02:14:59 -2622
Mohave Valley 02:07:08 -19.8 Dark Up 29.5 119.0 Low 01:59:17 - 02:15:00 -2646
CPSLO 02:07:24 -15.2 AT Up 24.9 114.6 Low 01:59:32 - 02:15:15 -2647
Lake Havasu City 02:07:08 -19.9 Dark Up 29.9 119.0 Low 01:59:17 - 02:15:00 -2681
Parker 02:07:09 -19.8 Dark Up 30.1 118.8 Up 01:59:17 - 02:15:00 -2712
George/Scottsdale 02:07:02 -21.7 Dark Up 32.0 120.5 Up 01:59:11 - 02:14:54 -2736
Wildwood 02:07:21 -16.4 AT Up 26.9 115.5 Low 01:59:30 - 02:15:13 -2743
Blythe 02:07:11 -19.5 Dark Up 30.1 118.3 Up 01:59:19 - 02:15:02 -2762
Idyllwild 02:07:17 -17.8 AT Up 28.5 116.8 Low 01:59:26 - 02:15:09 -2763
Calipatria 02:07:15 -18.6 Dark Up 29.7 117.4 Low 01:59:23 - 02:15:06 -2813
Yuma 02:07:13 -19.2 Dark Up 30.5 117.8 Up 01:59:22 - 02:15:05 -2847

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 472262, (2021/12/13 02:04UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 28.29  55
Menkar         03:02:16.8 +04:05:21  2.5  8.47  31
PPM 185494     03:11:18.8 -03:48:42  6.0  1.11  33
PPM 185598     03:16:40.8 -03:31:50  7.8  0.28  35
472262         03:15:44.4 -03:40:58 16.7        34
Positions are for J2000

Event circumstances last updated at 2021/10/11 01:43:53 UT

Marc W. Buie, Southwest Research Institute

RECON