RECON: TNO occultation with 00OU69

Event between 00OU69 and star GA0720:33502595 with event index number of 1063047

Geocentric closest approach at 2021/10/14 05:09:21 UTC

J2000 position of star is 22:05:05.7 -16:18:27
Equinox of date position of star is 22:06:16.6 -16:12:04
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 23 degrees from the moon. Moon is 62% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 41.2 AU from the Sun and 40.6 AU from the Earth.
The TNO is moving 12.8 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 230 seconds.
The 1-sigma cross-track error in the shadow position is 1734 km.
The sky-plane scale is 29451.4 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=271.7 km assuming a 5% albedo -- 21.2 sec chord
Diameter=110.9 km assuming a 30% albedo -- 8.7 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 00OU69, (2021/10/14 05:12UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:51.0 -29:30:23  1.2 17.96  33
29 Aqr         22:03:37.8 -16:51:31  6.1  0.91  22
PPM 239749     22:05:23.2 -16:03:24  8.0  0.26  23
00OU69         22:06:16.7 -16:12:04 16.7        23
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 3.9 sigma about the mid-time.
The median site spacing is 16.7 km RECON observability=1.0 and success probability=8.6%
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 05:06:50 -36.9 Dark Up 23.0 189.5 Low 04:51:50 - 05:21:50 -2531
Victoria 05:07:12 -35.9 Dark Up 25.0 185.4 Low 04:52:12 - 05:22:12 -2538
Peachland 05:06:52 -37.0 Dark Up 23.5 189.1 Low 04:51:52 - 05:21:52 -2546
Kelowna 05:06:51 -37.1 Dark Up 23.4 189.4 Low 04:51:51 - 05:21:51 -2547
Summerland 05:06:52 -37.2 Dark Up 23.6 189.2 Low 04:51:52 - 05:21:52 -2555
Penticton 05:06:51 -37.3 Dark Up 23.7 189.3 Low 04:51:51 - 05:21:51 -2560
Oliver 05:06:51 -37.5 Dark Up 24.0 189.3 Low 04:51:51 - 05:21:51 -2577
Anarchist Mountain Observatory 05:06:50 -37.7 Dark Up 24.2 189.5 Low 04:51:50 - 05:21:50 -2589
Tonasket 05:06:50 -37.8 Dark Up 24.5 189.5 Low 04:51:50 - 05:21:50 -2603
Okanogan 05:06:51 -38.0 Dark Up 24.8 189.3 Low 04:51:51 - 05:21:51 -2617
Brewster 05:06:53 -38.0 Dark Up 25.1 189.2 Low 04:51:53 - 05:21:53 -2626
Manson/Chelan 05:06:54 -38.0 Dark Up 25.4 188.8 Low 04:51:54 - 05:21:54 -2629
Wenatchee 05:06:55 -38.1 Dark Up 25.9 188.6 Low 04:51:55 - 05:21:55 -2650
Ellensburg 05:06:56 -38.3 Dark Up 26.3 188.4 Low 04:51:56 - 05:21:56 -2667
Yakima 05:06:56 -38.5 Dark Up 26.7 188.5 Low 04:51:56 - 05:21:56 -2688
Toppenish/White Swan 05:06:55 -38.7 Dark Up 26.9 188.7 Low 04:51:55 - 05:21:55 -2703
Goldendale 05:06:58 -38.8 Dark Up 27.5 188.3 Low 04:51:58 - 05:21:58 -2723
The Dalles 05:07:01 -38.7 Dark Up 27.7 187.9 Low 04:52:01 - 05:22:01 -2728
Pasco 05:06:49 -39.5 Dark Up 26.9 190.0 Low 04:51:49 - 05:21:49 -2734
PNWRO 05:06:47 -39.8 Dark Up 27.1 190.3 Low 04:51:47 - 05:21:47 -2752
Maupin 05:07:00 -39.0 Dark Up 28.2 188.0 Low 04:52:00 - 05:22:00 -2753
Sisters 05:07:02 -39.2 Dark Up 29.1 187.6 Low 04:52:02 - 05:22:02 -2791
Redmond 05:07:01 -39.4 Dark Up 29.1 188.0 Low 04:52:01 - 05:22:01 -2800
Bend 05:07:02 -39.5 Dark Up 29.3 187.9 Low 04:52:02 - 05:22:02 -2809
Oregon Observatory 05:07:01 -39.5 Dark Up 29.5 187.7 Low 04:52:01 - 05:22:01 -2816
La Pine/Gilchrist 05:07:03 -39.6 Dark Up 29.7 187.7 Low 04:52:03 - 05:22:03 -2826
North Lake 05:06:59 -40.2 Dark Up 30.0 188.4 Up 04:51:59 - 05:21:59 -2863
Chiloquin 05:07:05 -39.9 Dark Up 30.8 187.4 Up 04:52:05 - 05:22:05 -2883
Paisley 05:06:57 -40.7 Dark Up 30.6 188.8 Up 04:51:57 - 05:21:57 -2903
Klamath Falls 05:07:05 -40.2 Dark Up 31.1 187.5 Up 04:52:05 - 05:22:05 -2905
Lakeview 05:06:55 -41.1 Dark Up 31.0 189.1 Up 04:51:55 - 05:21:55 -2937
Cedarville 05:06:56 -41.5 Dark Up 31.7 189.3 Up 04:51:56 - 05:21:56 -2980
Fall River/Burney 05:07:02 -41.0 Dark Up 32.3 188.0 Up 04:52:02 - 05:22:02 -2983
Susanville 05:07:00 -41.8 Dark Up 32.8 188.9 Up 04:52:00 - 05:22:00 -3038
Greenville 05:07:02 -41.8 Dark Up 33.1 188.6 Up 04:52:02 - 05:22:02 -3048
Gimple 05:07:00 -41.8 Dark Up 33.1 188.7 Up 04:52:00 - 05:22:00 -3050
Quincy 05:07:00 -41.9 Dark Up 33.3 188.6 Up 04:52:00 - 05:22:00 -3061
Portola 05:06:57 -42.2 Dark Up 33.4 189.2 Up 04:51:57 - 05:21:57 -3079
Reno 05:06:53 -42.8 Dark Up 33.6 189.9 Up 04:51:53 - 05:21:53 -3110
Carson City 05:06:54 -43.0 Dark Up 33.9 190.0 Up 04:51:54 - 05:21:54 -3133
Gardnerville 05:06:53 -43.1 Dark Up 34.2 190.1 Up 04:51:53 - 05:21:53 -3150
Yerington 05:06:49 -43.5 Dark Up 34.0 190.7 Up 04:51:49 - 05:21:49 -3160
Hawthorne 05:06:47 -44.1 Dark Up 34.4 191.4 Up 04:51:47 - 05:21:47 -3202
Lee Vining 05:06:49 -44.0 Dark Up 35.0 190.9 Up 04:51:49 - 05:21:49 -3227
Tonopah 05:06:36 -45.2 Dark Up 34.6 193.0 Up 04:51:36 - 05:21:36 -3265
Bishop 05:06:44 -44.8 Dark Up 35.5 191.8 Up 04:51:44 - 05:21:44 -3285
Beatty 05:06:35 -46.2 Dark Up 35.7 193.7 Up 04:51:35 - 05:21:35 -3354
CPSLO 05:07:00 -44.2 Dark Up 37.9 189.5 Up 04:52:00 - 05:22:00 -3374
Indian Springs 05:06:27 -47.0 Dark Up 35.8 195.0 Up 04:51:27 - 05:21:27 -3403
Dunrhomin 05:05:26 -50.8 Dark Up 29.6 205.4 Low 04:50:26 - 05:20:26 -3417
Henderson 05:06:23 -47.8 Dark Up 36.2 195.9 Up 04:51:23 - 05:21:23 -3457
Wildwood 05:06:48 -46.3 Dark Up 38.7 192.1 Up 04:51:48 - 05:21:48 -3507
Patrick 05:06:16 -48.9 Dark Up 36.5 197.3 Up 04:51:16 - 05:21:16 -3529
Laughlin/Bullhead City 05:06:20 -48.5 Dark Up 36.9 196.5 Up 04:51:20 - 05:21:20 -3529
Kingman/Dolan Springs 05:06:18 -48.9 Dark Up 36.8 197.1 Up 04:51:18 - 05:21:18 -3540
Mohave Valley 05:06:20 -48.7 Dark Up 37.2 196.6 Up 04:51:20 - 05:21:20 -3549
Idyllwild 05:06:34 -47.8 Dark Up 38.7 194.4 Up 04:51:34 - 05:21:34 -3578
Lake Havasu City 05:06:20 -49.1 Dark Up 37.5 197.0 Up 04:51:20 - 05:21:20 -3584
Parker 05:06:18 -49.3 Dark Up 37.8 197.1 Up 04:51:18 - 05:21:18 -3610
Blythe 05:06:20 -49.3 Dark Up 38.4 196.9 Up 04:51:20 - 05:21:20 -3641
Calipatria 05:06:27 -48.9 Dark Up 39.1 195.9 Up 04:51:27 - 05:21:27 -3654
George/Scottsdale 05:06:03 -51.2 Dark Up 37.6 200.0 Up 04:51:03 - 05:21:03 -3705
Yuma 05:06:21 -49.8 Dark Up 39.3 197.0 Up 04:51:21 - 05:21:21 -3709

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 00OU69, (2021/10/14 05:12UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 17.96  33
29 Aqr         22:02:26.5 -16:57:52  6.1  0.91  22
PPM 239749     22:04:12.2 -16:09:46  8.0  0.26  23
00OU69         22:05:05.7 -16:18:27 16.7        23
Positions are for J2000

Event circumstances last updated at 2021/10/02 02:23:19 UT

Marc W. Buie, Southwest Research Institute

RECON