RECON: TNO occultation with 523722

Event between (523722) 14LV28 and star GA0720:33345202 with event index number of 2292996

Geocentric closest approach at 2022/07/01 09:37:24 UTC

J2000 position of star is 21:16:39.2 -16:02:49
Equinox of date position of star is 21:17:51.6 -15:57:18
Stellar brightness G=14.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 167 degrees from the moon. Moon is 5% illuminated.
TNO apparent brightness V=21.4

[RECON map]
TNO is 35.7 AU from the Sun and 34.9 AU from the Earth.
The TNO is moving 17.4 km/sec on the sky relative to the star, or, 2.5 arcsec/hr.
The 1-sigma error in the time of the event is 93 seconds.
The 1-sigma cross-track error in the shadow position is 1436 km.
The sky-plane scale is 25298.6 km/arcsec.

The TNO has an absolute magnitude Hv=5.8
Diameter=422.7 km assuming a 5% albedo -- 24.3 sec chord
Diameter=172.6 km assuming a 30% albedo -- 9.9 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 523722, (2022/07/01 09:35UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:53.3 -29:30:09  1.2 26.85 147
29 Cap         21:16:59.4 -15:04:36  5.1  0.90 167
PPM 238603     21:16:49.8 -15:59:48  8.5  0.26 167
PPM 238629     21:18:29.4 -15:52:49  9.6  0.16 167
523722         21:17:54.0 -15:57:07 14.6       167
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 14.9 km RECON observability=0.9 and success probability=0.0%
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 09:37:03 -13.6 AT Down 22.4 164.6 Low 09:28:47 - 09:45:18 11486
Kelowna 09:37:05 -14.0 AT Down 22.8 164.4 Low 09:28:49 - 09:45:20 11472
Peachland 09:37:05 -14.2 AT Down 22.8 164.1 Low 09:28:50 - 09:45:21 11472
Summerland 09:37:07 -14.3 AT Down 23.0 164.2 Low 09:28:51 - 09:45:22 11465
Victoria 09:37:22 -16.2 AT Down 23.3 160.3 Low 09:29:06 - 09:45:37 11462
Penticton 09:37:05 -14.4 AT Down 23.1 164.3 Low 09:28:50 - 09:45:21 11460
Oliver 09:37:06 -14.7 AT Down 23.4 164.2 Low 09:28:50 - 09:45:21 11446
Anarchist Mountain Observatory 09:37:07 -14.8 AT Down 23.6 164.4 Low 09:28:51 - 09:45:22 11437
Tonasket 09:37:06 -15.1 AT Down 23.9 164.3 Low 09:28:51 - 09:45:22 11425
Okanogan 09:37:07 -15.4 AT Down 24.2 164.1 Low 09:28:52 - 09:45:23 11412
Brewster 09:37:11 -15.7 AT Down 24.4 163.9 Low 09:28:56 - 09:45:27 11403
Manson/Chelan 09:37:11 -16.0 AT Down 24.6 163.5 Low 09:28:55 - 09:45:26 11399
Wenatchee 09:37:14 -16.5 AT Down 25.0 163.3 Low 09:28:58 - 09:45:29 11380
Ellensburg 09:37:15 -17.0 AT Down 25.3 163.0 Low 09:28:59 - 09:45:30 11365
Yakima 09:37:15 -17.3 AT Down 25.7 162.9 Low 09:28:59 - 09:45:30 11347
Toppenish/White Swan 09:37:14 -17.5 AT Down 26.0 163.1 Low 09:28:58 - 09:45:29 11335
Goldendale 09:37:18 -18.1 Dark Down 26.4 162.5 Low 09:29:02 - 09:45:33 11315
Pasco 09:37:10 -17.3 AT Down 26.3 164.4 Low 09:28:55 - 09:45:26 11313
The Dalles 09:37:20 -18.4 Dark Down 26.5 162.1 Low 09:29:04 - 09:45:35 11308
PNWRO 09:37:10 -17.4 AT Down 26.6 164.6 Low 09:28:55 - 09:45:26 11299
Maupin 09:37:19 -18.8 Dark Down 27.0 162.2 Low 09:29:04 - 09:45:35 11288
Sisters 09:37:25 -19.7 Dark Down 27.7 161.5 Low 09:29:10 - 09:45:41 11252
Redmond 09:37:22 -19.6 Dark Down 27.8 162.0 Low 09:29:07 - 09:45:38 11246
Bend 09:37:23 -19.9 Dark Down 28.0 161.8 Low 09:29:07 - 09:45:38 11237
Oregon Observatory 09:37:24 -20.1 Dark Down 28.1 161.6 Low 09:29:08 - 09:45:39 11230
La Pine/Gilchrist 09:37:24 -20.3 Dark Down 28.3 161.5 Low 09:29:09 - 09:45:40 11221
North Lake 09:37:24 -20.5 Dark Down 28.9 162.1 Low 09:29:09 - 09:45:40 11191
Chiloquin 09:37:29 -21.4 Dark Down 29.3 161.0 Low 09:29:13 - 09:45:44 11169
Paisley 09:37:22 -20.9 Dark Down 29.5 162.4 Low 09:29:06 - 09:45:37 11158
Klamath Falls 09:37:29 -21.7 Dark Down 29.6 161.0 Low 09:29:14 - 09:45:45 11150
Lakeview 09:37:22 -21.3 Dark Down 30.0 162.5 Low 09:29:06 - 09:45:37 11130
Cedarville 09:37:24 -21.9 Dark Down 30.7 162.6 Up 09:29:08 - 09:45:39 11092
Fall River/Burney 09:37:29 -22.7 Dark Down 30.8 161.2 Up 09:29:14 - 09:45:45 11082
Susanville 09:37:29 -23.1 Dark Down 31.6 161.9 Up 09:29:13 - 09:45:44 11038
Greenville 09:37:30 -23.4 Dark Down 31.8 161.5 Up 09:29:15 - 09:45:46 11026
Gimple 09:37:29 -23.4 Dark Down 31.8 161.6 Up 09:29:13 - 09:45:44 11025
Quincy 09:37:29 -23.6 Dark Down 32.0 161.4 Up 09:29:14 - 09:45:45 11014
Portola 09:37:28 -23.6 Dark Down 32.2 161.9 Up 09:29:13 - 09:45:44 11001
Reno 09:37:26 -23.6 Dark Down 32.6 162.6 Up 09:29:10 - 09:45:41 10977
Carson City 09:37:26 -23.9 Dark Down 33.0 162.6 Up 09:29:10 - 09:45:41 10956
Gardnerville 09:37:26 -24.1 Dark Down 33.2 162.6 Up 09:29:11 - 09:45:42 10941
Yerington 09:37:24 -23.9 Dark Down 33.3 163.2 Up 09:29:09 - 09:45:40 10936
Hawthorne 09:37:22 -24.2 Dark Down 33.9 163.7 Up 09:29:07 - 09:45:38 10901
Lee Vining 09:37:25 -24.8 Dark Down 34.3 163.1 Up 09:29:10 - 09:45:41 10875
Tonopah 09:37:17 -24.1 Dark Down 34.6 165.2 Up 09:29:02 - 09:45:33 10852
Bishop 09:37:23 -25.1 Dark Down 35.0 163.8 Up 09:29:07 - 09:45:38 10828
Beatty 09:37:17 -25.0 Dark Down 35.8 165.5 Up 09:29:01 - 09:45:32 10774
Dunrhomin 09:36:17 -17.5 AT Down 33.7 179.0 Up 09:28:02 - 09:44:33 10770
Indian Springs 09:37:12 -24.9 Dark Down 36.3 166.7 Up 09:28:56 - 09:45:27 10736
CPSLO 09:37:38 -27.7 Dark Down 36.5 160.8 Up 09:29:23 - 09:45:54 10732
Henderson 09:37:10 -25.1 Dark Down 37.0 167.4 Up 09:28:55 - 09:45:26 10690
Patrick 09:37:06 -25.2 Dark Down 37.8 168.6 Up 09:28:50 - 09:45:21 10631
Laughlin/Bullhead City 09:37:08 -25.7 Dark Down 37.9 167.8 Up 09:28:53 - 09:45:24 10627
Wildwood 09:37:31 -28.1 Dark Down 38.1 162.9 Up 09:29:16 - 09:45:47 10623
Kingman/Dolan Springs 09:37:06 -25.5 Dark Down 38.0 168.4 Up 09:28:51 - 09:45:22 10620
Mohave Valley 09:37:10 -25.9 Dark Down 38.2 167.7 Up 09:28:54 - 09:45:25 10609
Lake Havasu City 09:37:09 -26.2 Dark Down 38.6 168.0 Up 09:28:53 - 09:45:24 10578
Idyllwild 09:37:22 -27.8 Dark Down 38.9 165.0 Up 09:29:06 - 09:45:37 10570
Parker 09:37:09 -26.5 Dark Down 39.0 167.9 Up 09:28:54 - 09:45:25 10555
Blythe 09:37:10 -27.0 Dark Down 39.4 167.5 Up 09:28:54 - 09:45:25 10525
Calipatria 09:37:17 -27.8 Dark Down 39.7 166.3 Up 09:29:02 - 09:45:33 10507
George/Scottsdale 09:36:57 -25.8 Dark Down 39.7 170.8 Up 09:28:42 - 09:45:13 10482
Yuma 09:37:13 -27.8 Dark Down 40.3 167.3 Up 09:28:57 - 09:45:28 10462

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 523722, (2022/07/01 09:35UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 26.85 147
29 Cap         21:15:44.9 -15:10:17  5.1  0.90 167
PPM 238603     21:15:34.9 -16:05:28  8.5  0.26 167
PPM 238629     21:17:14.6 -15:58:32  9.6  0.16 167
523722         21:16:39.2 -16:02:49 14.6       167
Positions are for J2000

Event circumstances last updated at 2021/10/13 01:35:19 UT

Marc W. Buie, Southwest Research Institute

RECON