RECON: TNO occultation with 11OC61

Event between 11OC61 and star GA0740:29268504 with event index number of 1582066

Geocentric closest approach at 2022/10/12 05:15:40 UTC

J2000 position of star is 22:08:51.5 -14:54:51
Equinox of date position of star is 22:09:54.7 -14:49:04
Stellar brightness G=14.1, use SENSEUP=64
Star is 79 degrees from the moon. Moon is 94% illuminated.
TNO apparent brightness V=23.0

[RECON map]
TNO is 44.6 AU from the Sun and 43.9 AU from the Earth.
The TNO is moving 14.5 km/sec on the sky relative to the star, or, 1.6 arcsec/hr.
The 1-sigma error in the time of the event is 557 seconds.
The 1-sigma cross-track error in the shadow position is 3196 km.
The sky-plane scale is 31861.6 km/arcsec.

The TNO has an absolute magnitude Hv=6.4
Diameter=317.7 km assuming a 5% albedo -- 21.9 sec chord
Diameter=129.7 km assuming a 30% albedo -- 8.9 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 11OC61, (2022/10/12 05:16UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:54.2 -29:30:03  1.2 18.51  75
33Iot Aqr      22:07:39.9 -13:45:30  4.3  1.20  79
PPM 239822     22:08:49.1 -14:22:44  7.2  0.52  79
PPM 239881     22:11:02.8 -15:00:32  9.1  0.31  78
11OC61         22:10:05.3 -14:48:06 14.1        78
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 1.6 sigma about the mid-time.
The median site spacing is 13.1 km RECON observability=1.0 and success probability=9.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 05:13:17 -37.1 Dark Up 24.9 188.0 Low 04:58:17 - 05:28:17 -1614
Summerland 05:13:17 -37.2 Dark Up 25.2 187.7 Low 04:58:17 - 05:28:17 -1622
Penticton 05:13:17 -37.3 Dark Up 25.2 187.8 Low 04:58:17 - 05:28:17 -1628
Okanagan Falls 05:13:17 -37.4 Dark Up 25.4 187.8 Low 04:58:17 - 05:28:17 -1637
Oliver 05:13:18 -37.5 Dark Up 25.6 187.8 Low 04:58:18 - 05:28:18 -1646
Anarchist Mountain Observatory 05:13:16 -37.7 Dark Up 25.7 188.1 Low 04:58:16 - 05:28:16 -1658
Oroville 05:13:16 -37.7 Dark Up 25.8 188.0 Low 04:58:16 - 05:28:16 -1661
Tonasket 05:13:16 -37.9 Dark Up 26.0 188.0 Low 04:58:16 - 05:28:16 -1672
Okanogan 05:13:18 -38.0 Dark Up 26.4 187.9 Low 04:58:18 - 05:28:18 -1686
Brewster 05:13:18 -38.1 Dark Up 26.7 187.7 Low 04:58:18 - 05:28:18 -1696
Manson/Chelan 05:13:20 -38.0 Dark Up 26.9 187.3 Low 04:58:20 - 05:28:20 -1699
Wenatchee 05:13:22 -38.2 Dark Up 27.4 187.2 Low 04:58:22 - 05:28:22 -1719
Ellensburg 05:13:23 -38.4 Dark Up 27.8 186.9 Low 04:58:23 - 05:28:23 -1736
Yakima 05:13:22 -38.6 Dark Up 28.2 186.9 Low 04:58:22 - 05:28:22 -1758
Toppenish/White Swan 05:13:22 -38.8 Dark Up 28.4 187.1 Low 04:58:22 - 05:28:22 -1773
Goldendale 05:13:25 -38.9 Dark Up 29.0 186.7 Low 04:58:25 - 05:28:25 -1794
The Dalles 05:13:26 -38.9 Dark Up 29.3 186.3 Low 04:58:26 - 05:28:26 -1798
Pasco 05:13:16 -39.6 Dark Up 28.4 188.5 Low 04:58:16 - 05:28:16 -1809
George/Umatilla 05:13:16 -39.7 Dark Up 28.8 188.3 Low 04:58:16 - 05:28:16 -1822
Maupin 05:13:26 -39.2 Dark Up 29.7 186.5 Low 04:58:26 - 05:28:26 -1823
PNWRO 05:13:15 -39.9 Dark Up 28.7 188.8 Low 04:58:15 - 05:28:15 -1828
Madras/Culver 05:13:26 -39.5 Dark Up 30.2 186.5 Up 04:58:26 - 05:28:26 -1853
Sisters 05:13:29 -39.4 Dark Up 30.6 186.0 Up 04:58:29 - 05:28:29 -1862
Redmond 05:13:26 -39.6 Dark Up 30.6 186.4 Up 04:58:26 - 05:28:26 -1872
Bend 05:13:28 -39.7 Dark Up 30.8 186.3 Up 04:58:28 - 05:28:28 -1881
Oregon Observatory 05:13:29 -39.7 Dark Up 31.0 186.2 Up 04:58:29 - 05:28:29 -1888
La Pine/Gilchrist 05:13:29 -39.8 Dark Up 31.2 186.1 Up 04:58:29 - 05:28:29 -1898
North Lake 05:13:26 -40.4 Dark Up 31.6 186.8 Up 04:58:26 - 05:28:26 -1938
Chiloquin 05:13:31 -40.2 Dark Up 32.3 185.8 Up 04:58:31 - 05:28:31 -1955
Klamath Falls 05:13:31 -40.4 Dark Up 32.7 185.9 Up 04:58:31 - 05:28:31 -1978
Paisley 05:13:25 -40.9 Dark Up 32.1 187.3 Up 04:58:25 - 05:28:25 -1979
Tulelake 05:13:30 -40.8 Dark Up 32.9 186.3 Up 04:58:30 - 05:28:30 -2001
Lakeview 05:13:23 -41.3 Dark Up 32.6 187.5 Up 04:58:23 - 05:28:23 -2014
Cedarville 05:13:23 -41.8 Dark Up 33.2 187.8 Up 04:58:23 - 05:28:23 -2059
Fall River/Burney 05:13:30 -41.3 Dark Up 33.8 186.4 Up 04:58:30 - 05:28:30 -2059
Susanville 05:13:28 -42.1 Dark Up 34.4 187.3 Up 04:58:28 - 05:28:28 -2116
Greenville 05:13:28 -42.1 Dark Up 34.7 187.0 Up 04:58:28 - 05:28:28 -2127
Gimple 05:13:28 -42.1 Dark Up 34.7 187.1 Up 04:58:28 - 05:28:28 -2129
Quincy 05:13:29 -42.2 Dark Up 34.9 187.0 Up 04:58:29 - 05:28:29 -2140
Portola 05:13:26 -42.6 Dark Up 34.9 187.6 Up 04:58:26 - 05:28:26 -2160
Reno 05:13:22 -43.1 Dark Up 35.1 188.4 Up 04:58:22 - 05:28:22 -2193
Carson City 05:13:22 -43.3 Dark Up 35.5 188.4 Up 04:58:22 - 05:28:22 -2217
Gardnerville 05:13:22 -43.5 Dark Up 35.7 188.5 Up 04:58:22 - 05:28:22 -2234
Yerington 05:13:19 -43.8 Dark Up 35.6 189.2 Up 04:58:19 - 05:28:19 -2246
Hawthorne 05:13:17 -44.4 Dark Up 36.0 189.9 Up 04:58:17 - 05:28:17 -2290
Lee Vining 05:13:20 -44.4 Dark Up 36.6 189.4 Up 04:58:20 - 05:28:20 -2315
Tonopah 05:13:09 -45.6 Dark Up 36.3 191.6 Up 04:58:09 - 05:28:09 -2359
Bishop 05:13:16 -45.2 Dark Up 37.1 190.3 Up 04:58:16 - 05:28:16 -2375
Lone Pine 05:13:14 -45.9 Dark Up 37.8 190.8 Up 04:58:14 - 05:28:14 -2436
Beatty 05:13:07 -46.5 Dark Up 37.3 192.3 Up 04:58:07 - 05:28:07 -2451
CPSLO 05:13:30 -44.7 Dark Up 39.4 187.8 Up 04:58:30 - 05:28:30 -2458
Indian Springs 05:13:01 -47.4 Dark Up 37.5 193.6 Up 04:58:01 - 05:28:01 -2503
SwRI 05:12:07 -51.0 Dark Up 31.6 204.4 Up 04:57:07 - 05:27:07 -2557
Henderson 05:12:58 -48.2 Dark Up 37.8 194.5 Up 04:57:58 - 05:27:58 -2560
Wildwood 05:13:19 -46.8 Dark Up 40.4 190.5 Up 04:58:19 - 05:28:19 -2600
Searchlight/Boulder City 05:12:57 -48.6 Dark Up 38.4 194.7 Up 04:57:57 - 05:27:57 -2603
Laughlin/Bullhead City 05:12:54 -48.9 Dark Up 38.6 195.2 Up 04:57:54 - 05:27:54 -2635
Patrick 05:12:50 -49.3 Dark Up 38.2 195.9 Up 04:57:50 - 05:27:50 -2637
Kingman/Dolan Springs 05:12:52 -49.3 Dark Up 38.5 195.8 Up 04:57:52 - 05:27:52 -2648
Mohave Valley 05:12:55 -49.1 Dark Up 38.9 195.2 Up 04:57:55 - 05:27:55 -2655
Idyllwild 05:13:08 -48.3 Dark Up 40.4 192.9 Up 04:58:08 - 05:28:08 -2679
Lake Havasu City 05:12:53 -49.5 Dark Up 39.2 195.6 Up 04:57:53 - 05:27:53 -2691
Parker 05:12:54 -49.7 Dark Up 39.5 195.7 Up 04:57:54 - 05:27:54 -2718
Blythe 05:12:56 -49.8 Dark Up 40.1 195.5 Up 04:57:56 - 05:27:56 -2748
Calipatria 05:13:02 -49.4 Dark Up 40.8 194.5 Up 04:58:02 - 05:28:02 -2758
Yuma 05:12:56 -50.3 Dark Up 41.0 195.6 Up 04:57:56 - 05:27:56 -2817

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 11OC61, (2022/10/12 05:16UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:23  1.2 18.51  75
33Iot Aqr      22:06:26.3 -13:52:12  4.3  1.20  79
PPM 239822     22:07:35.4 -14:29:27  7.2  0.52  79
PPM 239881     22:09:49.0 -15:07:17  9.1  0.31  78
11OC61         22:08:51.5 -14:54:51 14.1        79
Positions are for J2000

Event circumstances last updated at 2019/07/04 22:09:05 UT

Marc W. Buie, Southwest Research Institute

RECON