RECON: TNO occultation with 469704

Event between (469704) 05EZ296 and star GA0760:04921756 with event index number of 1140327

Geocentric closest approach at 2022/03/17 07:51:28 UTC

J2000 position of star is 14:08:47.4 -13:18:49
Equinox of date position of star is 14:09:58.1 -13:24:58
Stellar brightness G=13.6, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 50 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=22.5

[RECON map]
TNO is 33.9 AU from the Sun and 33.1 AU from the Earth.
The TNO is moving 17.8 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 95 seconds.
The 1-sigma cross-track error in the shadow position is 1299 km.
The sky-plane scale is 23990.8 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=226.0 km assuming a 5% albedo -- 12.7 sec chord
Diameter=92.2 km assuming a 30% albedo -- 5.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 469704, (2022/03/17 07:52UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:22.0 -11:16:36  1.0 10.87  40
PPM 228240     14:05:39.4 -15:04:39  6.3  1.96  50
PPM 228332     14:09:16.0 -13:02:01  7.6  0.42  50
PPM 228333     14:09:20.5 -13:28:35  9.0  0.17  50
469704         14:09:59.5 -13:25:05 13.6        50
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 14.7 km RECON observability=0.8 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 07:55:18 -41.0 Dark Up 18.3 141.1 Really Low 07:46:55 - 08:03:41 10161
Kelowna 07:55:20 -41.4 Dark Up 18.6 140.8 Really Low 07:46:57 - 08:03:43 10130
Peachland 07:55:21 -41.5 Dark Up 18.5 140.6 Really Low 07:46:58 - 08:03:44 10114
Summerland 07:55:18 -41.6 Dark Up 18.7 140.6 Really Low 07:46:55 - 08:03:41 10107
Penticton 07:55:21 -41.7 Dark Up 18.8 140.7 Really Low 07:46:58 - 08:03:44 10105
Oliver 07:55:20 -42.1 Dark Up 19.1 140.6 Really Low 07:46:57 - 08:03:43 10081
Anarchist Mountain Observatory 07:55:21 -42.3 Dark Up 19.3 140.8 Really Low 07:46:58 - 08:03:44 10075
Tonasket 07:55:21 -42.6 Dark Up 19.5 140.6 Really Low 07:46:58 - 08:03:44 10051
Okanogan 07:55:22 -42.9 Dark Up 19.7 140.4 Really Low 07:46:59 - 08:03:45 10023
Brewster 07:55:24 -43.1 Dark Up 19.8 140.2 Really Low 07:47:01 - 08:03:47 9998
Manson/Chelan 07:55:25 -43.3 Dark Up 19.8 139.8 Really Low 07:47:02 - 08:03:48 9973
Wenatchee 07:55:27 -43.8 Dark Up 20.1 139.5 Low 07:47:04 - 08:03:50 9934
Victoria 07:55:33 -42.4 Dark Up 17.9 137.0 Really Low 07:47:10 - 08:03:56 9926
Ellensburg 07:55:26 -44.2 Dark Up 20.3 139.2 Low 07:47:03 - 08:03:49 9898
Pasco 07:55:24 -45.0 Dark Up 21.5 140.3 Low 07:47:01 - 08:03:47 9886
Dunrhomin 07:54:41 -49.7 Dark Up 32.1 152.4 Up 07:46:18 - 08:03:04 9884
PNWRO 07:55:25 -45.3 Dark Up 21.8 140.5 Low 07:47:02 - 08:03:48 9875
Yakima 07:55:28 -44.6 Dark Up 20.6 139.1 Low 07:47:05 - 08:03:51 9868
Toppenish/White Swan 07:55:27 -44.8 Dark Up 20.9 139.2 Low 07:47:04 - 08:03:50 9857
Goldendale 07:55:31 -45.4 Dark Up 21.1 138.7 Low 07:47:08 - 08:03:54 9804
The Dalles 07:55:31 -45.5 Dark Up 21.1 138.3 Low 07:47:08 - 08:03:54 9776
Maupin 07:55:32 -46.0 Dark Up 21.5 138.3 Low 07:47:09 - 08:03:55 9748
Redmond 07:55:34 -46.9 Dark Up 22.1 138.0 Low 07:47:11 - 08:03:57 9678
Sisters 07:55:34 -46.8 Dark Up 21.9 137.6 Low 07:47:11 - 08:03:57 9667
Bend 07:55:35 -47.1 Dark Up 22.2 137.8 Low 07:47:12 - 08:03:58 9657
Oregon Observatory 07:55:35 -47.2 Dark Up 22.3 137.6 Low 07:47:12 - 08:03:58 9640
La Pine/Gilchrist 07:55:34 -47.4 Dark Up 22.4 137.5 Low 07:47:11 - 08:03:57 9622
North Lake 07:55:32 -47.9 Dark Up 23.0 137.9 Low 07:47:09 - 08:03:55 9608
Paisley 07:55:32 -48.5 Dark Up 23.6 138.1 Low 07:47:09 - 08:03:55 9576
Lakeview 07:55:34 -49.0 Dark Up 24.0 138.1 Low 07:47:11 - 08:03:57 9543
Chiloquin 07:55:38 -48.5 Dark Up 23.0 136.9 Low 07:47:15 - 08:04:01 9525
Klamath Falls 07:55:38 -48.8 Dark Up 23.3 136.9 Low 07:47:15 - 08:04:01 9501
Cedarville 07:55:34 -49.7 Dark Up 24.6 138.1 Low 07:47:11 - 08:03:57 9497
Fall River/Burney 07:55:39 -50.1 Dark Up 24.4 136.9 Low 07:47:16 - 08:04:02 9419
Susanville 07:55:37 -50.7 Dark Up 25.2 137.3 Low 07:47:14 - 08:04:00 9393
Gimple 07:55:38 -51.0 Dark Up 25.3 137.0 Low 07:47:15 - 08:04:01 9364
Greenville 07:55:39 -51.0 Dark Up 25.3 137.0 Low 07:47:16 - 08:04:02 9361
Portola 07:55:37 -51.4 Dark Up 25.7 137.3 Low 07:47:14 - 08:04:00 9351
Reno 07:55:35 -51.7 Dark Up 26.3 137.8 Low 07:47:12 - 08:03:58 9350
Quincy 07:55:38 -51.2 Dark Up 25.4 136.9 Low 07:47:15 - 08:04:01 9345
Yerington 07:55:34 -52.3 Dark Up 27.0 138.2 Low 07:47:11 - 08:03:57 9327
Carson City 07:55:36 -52.0 Dark Up 26.6 137.7 Low 07:47:13 - 08:03:59 9322
Tonopah 07:55:29 -53.3 Dark Up 28.7 139.7 Low 07:47:06 - 08:03:52 9317
Hawthorne 07:55:31 -52.7 Dark Up 27.6 138.5 Low 07:47:08 - 08:03:54 9307
Gardnerville 07:55:35 -52.3 Dark Up 26.8 137.7 Low 07:47:12 - 08:03:58 9304
Indian Springs 07:55:24 -54.7 Dark Up 30.6 140.6 Up 07:47:01 - 08:03:47 9248
Lee Vining 07:55:34 -53.3 Dark Up 27.8 137.9 Low 07:47:11 - 08:03:57 9245
Beatty 07:55:26 -54.4 Dark Up 29.8 139.7 Low 07:47:03 - 08:03:49 9237
Henderson 07:55:22 -55.2 Dark Up 31.4 141.1 Up 07:46:59 - 08:03:45 9228
Bishop 07:55:31 -53.9 Dark Up 28.6 138.3 Low 07:47:08 - 08:03:54 9220
Patrick 07:55:18 -55.8 Dark Up 32.4 141.9 Up 07:46:55 - 08:03:41 9215
Kingman/Dolan Springs 07:55:17 -56.0 Dark Up 32.5 141.6 Up 07:46:54 - 08:03:40 9190
Laughlin/Bullhead City 07:55:20 -56.1 Dark Up 32.3 141.1 Up 07:46:57 - 08:03:43 9169
Mohave Valley 07:55:19 -56.4 Dark Up 32.5 141.0 Up 07:46:56 - 08:03:42 9147
George/Scottsdale 07:55:10 -57.3 Dark Up 34.8 143.2 Up 07:46:47 - 08:03:33 9145
Lake Havasu City 07:55:20 -56.7 Dark Up 32.9 141.1 Up 07:46:57 - 08:03:43 9122
Parker 07:55:18 -57.1 Dark Up 33.2 141.0 Up 07:46:55 - 08:03:41 9094
Blythe 07:55:22 -57.6 Dark Up 33.5 140.5 Up 07:46:59 - 08:03:45 9039
Idyllwild 07:55:29 -57.6 Dark Up 32.3 138.5 Up 07:47:06 - 08:03:52 8974
CPSLO 07:55:41 -55.8 Dark Up 28.9 135.5 Low 07:47:18 - 08:04:04 8969
Calipatria 07:55:23 -58.2 Dark Up 33.4 139.4 Up 07:47:00 - 08:03:46 8964
Yuma 07:55:20 -58.6 Dark Up 34.2 140.0 Up 07:46:57 - 08:03:43 8959
Wildwood 07:55:34 -57.2 Dark Up 30.9 136.9 Up 07:47:11 - 08:03:57 8937

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 469704, (2022/03/17 07:52UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 10.87  40
PPM 228240     14:04:26.9 -14:58:19  6.3  1.96  50
PPM 228332     14:08:04.1 -12:55:44  7.6  0.42  50
PPM 228333     14:08:08.5 -13:22:18  9.0  0.17  50
469704         14:08:47.4 -13:18:49 13.6        50
Positions are for J2000

Event circumstances last updated at 2021/10/11 01:46:43 UT

Marc W. Buie, Southwest Research Institute

RECON