RECON: TNO occultation with 469372

Event between (469372) 01QF298 and star GA0840:00084704 with event index number of 1342636

Geocentric closest approach at 2023/10/08 05:03:49 UTC

J2000 position of star is 01:01:31.4 -05:30:29
Equinox of date position of star is 01:02:32.7 -05:23:59
Stellar brightness G=14.2, use SENSEUP=64
Star is 111 degrees from the moon. Moon is 35% illuminated.
TNO apparent brightness V=26.4

[RECON map]
TNO is 43.6 AU from the Sun and 42.7 AU from the Earth.
The TNO is moving 25.8 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 288 seconds.
The 1-sigma cross-track error in the shadow position is 3017 km.
The sky-plane scale is 30935.1 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=549.6 km assuming a 5% albedo -- 2.3 sec chord
Diameter=224.4 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 469372, (2023/10/08 05:04UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:57.4 -29:29:44  1.2 37.87 146
Diphda         00:44:46.8 -17:51:24  2.0 13.22 120
25 Cet         01:04:14.8 -04:42:36  5.3  0.77 111
PPM 182889     00:59:58.0 -05:45:19  6.6  0.78 112
PPM 182929     01:02:12.6 -05:11:27  9.8  0.23 111
469372         01:02:43.7 -05:22:50 14.2       111
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 3.1 sigma about the mid-time.
The median site spacing is 9.7 km RECON observability=1.0 and success probability=9.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 05:04:13 -33.2 Dark Down 22.6 128.9 Low 04:49:13 - 05:19:13 949
Clarence Fulton 05:04:00 -34.3 Dark Down 23.5 133.3 Low 04:49:00 - 05:19:00 936
Peachland 05:04:02 -34.4 Dark Down 23.6 132.7 Low 04:49:02 - 05:19:02 927
Kelowna 05:04:02 -34.4 Dark Down 23.7 133.0 Low 04:49:02 - 05:19:02 925
Summerland 05:04:03 -34.5 Dark Down 23.8 132.8 Low 04:49:03 - 05:19:03 920
Penticton 05:04:03 -34.6 Dark Down 23.9 132.9 Low 04:49:03 - 05:19:03 916
Oliver 05:04:04 -34.8 Dark Down 24.1 132.7 Low 04:49:04 - 05:19:04 903
Anarchist Mountain Observatory 05:04:04 -35.0 Dark Down 24.3 132.9 Low 04:49:04 - 05:19:04 894
Tonasket 05:04:05 -35.2 Dark Down 24.5 132.7 Low 04:49:05 - 05:19:05 883
Okanogan 05:04:06 -35.3 Dark Down 24.6 132.5 Low 04:49:06 - 05:19:06 874
Brewster 05:04:07 -35.4 Dark Down 24.7 132.2 Low 04:49:07 - 05:19:07 867
Manson/Chelan 05:04:09 -35.3 Dark Down 24.7 131.8 Low 04:49:09 - 05:19:09 867
Entiat 05:04:10 -35.4 Dark Down 24.8 131.6 Low 04:49:10 - 05:19:10 859
Wenatchee 05:04:11 -35.5 Dark Down 24.9 131.4 Low 04:49:11 - 05:19:11 851
Ellensburg 05:04:13 -35.6 Dark Down 25.1 131.1 Low 04:49:13 - 05:19:13 840
Yakima 05:04:14 -35.9 Dark Down 25.3 130.9 Low 04:49:14 - 05:19:14 824
Toppenish/White Swan 05:04:14 -36.1 Dark Down 25.6 131.0 Low 04:49:14 - 05:19:14 812
Goldendale 05:04:17 -36.2 Dark Down 25.7 130.4 Low 04:49:17 - 05:19:17 798
The Dalles 05:04:18 -36.1 Dark Down 25.7 130.0 Low 04:49:18 - 05:19:18 795
Pasco 05:04:12 -36.9 Dark Down 26.3 132.2 Low 04:49:12 - 05:19:12 782
Maupin 05:04:19 -36.4 Dark Down 26.0 130.0 Low 04:49:19 - 05:19:19 776
PNWRO 05:04:12 -37.1 Dark Down 26.6 132.3 Low 04:49:12 - 05:19:12 767
Sisters 05:04:23 -36.6 Dark Down 26.3 129.2 Low 04:49:23 - 05:19:23 748
Redmond 05:04:22 -36.8 Dark Down 26.5 129.5 Low 04:49:22 - 05:19:22 739
Bend 05:04:23 -36.9 Dark Down 26.6 129.3 Low 04:49:23 - 05:19:23 732
Oregon Observatory 05:04:24 -36.9 Dark Down 26.6 129.1 Low 04:49:24 - 05:19:24 727
La Pine/Gilchrist 05:04:25 -37.0 Dark Down 26.7 129.0 Low 04:49:25 - 05:19:25 719
North Lake 05:04:25 -37.6 Dark Down 27.3 129.4 Low 04:49:25 - 05:19:25 688
Klamath Falls 05:04:30 -37.6 Dark Down 27.5 128.2 Low 04:49:30 - 05:19:30 658
Paisley 05:04:26 -38.1 Dark Down 27.9 129.5 Low 04:49:26 - 05:19:26 655
Lakeview 05:04:27 -38.5 Dark Down 28.3 129.5 Low 04:49:27 - 05:19:27 627
Fall River/Burney 05:04:33 -38.5 Dark Down 28.5 128.1 Low 04:49:33 - 05:19:33 593
Cedarville 05:04:28 -39.0 Dark Down 28.9 129.4 Low 04:49:28 - 05:19:28 592
Susanville 05:04:33 -39.3 Dark Down 29.3 128.5 Low 04:49:33 - 05:19:33 546
Greenville 05:04:34 -39.2 Dark Down 29.3 128.1 Low 04:49:34 - 05:19:34 538
Gimple 05:04:34 -39.3 Dark Down 29.3 128.2 Low 04:49:34 - 05:19:34 537
Quincy 05:04:35 -39.3 Dark Down 29.4 128.0 Low 04:49:35 - 05:19:35 528
Portola 05:04:34 -39.7 Dark Down 29.8 128.4 Low 04:49:34 - 05:19:34 512
Reno 05:04:33 -40.3 Dark Down 30.3 128.8 Up 04:49:33 - 05:19:33 484
Carson City 05:04:35 -40.5 Dark Down 30.6 128.7 Up 04:49:35 - 05:19:35 464
Gardnerville 05:04:35 -40.7 Dark Down 30.8 128.6 Up 04:49:35 - 05:19:35 450
Yerington 05:04:34 -41.0 Dark Down 31.1 129.2 Up 04:49:34 - 05:19:34 440
Hawthorne 05:04:34 -41.6 Dark Down 31.7 129.5 Up 04:49:34 - 05:19:34 403
Lee Vining 05:04:37 -41.6 Dark Down 31.8 128.8 Up 04:49:37 - 05:19:37 384
Tonopah 05:04:32 -42.8 Dark Down 32.8 130.6 Up 04:49:32 - 05:19:32 344
Bishop 05:04:37 -42.4 Dark Down 32.6 129.1 Up 04:49:37 - 05:19:37 333
Beatty 05:04:34 -43.7 Dark Down 33.9 130.4 Up 04:49:34 - 05:19:34 267
CPSLO 05:04:48 -41.9 Dark Down 32.4 126.1 Up 04:49:48 - 05:19:48 266
Indian Springs 05:04:32 -44.6 Dark Down 34.7 131.3 Up 04:49:32 - 05:19:32 222
Henderson 05:04:32 -45.4 Dark Down 35.5 131.7 Up 04:49:32 - 05:19:32 172
Wildwood 05:04:47 -43.9 Dark Down 34.5 127.3 Up 04:49:47 - 05:19:47 145
Niwot 05:03:55 -48.4 Dark Down 37.6 143.9 Up 04:48:55 - 05:18:55 143
SwRI 05:03:56 -48.5 Dark Down 37.7 143.7 Up 04:48:56 - 05:18:56 140
Searchlight/Boulder City 05:04:33 -45.8 Dark Down 35.9 131.4 Up 04:49:33 - 05:19:33 137
Laughlin/Bullhead City 05:04:33 -46.2 Dark Down 36.3 131.6 Up 04:49:33 - 05:19:33 109
Patrick 05:04:31 -46.5 Dark Down 36.6 132.4 Up 04:49:31 - 05:19:31 106
Kingman/Dolan Springs 05:04:32 -46.5 Dark Down 36.6 132.1 Up 04:49:32 - 05:19:32 97
Mohave Valley 05:04:34 -46.3 Dark Down 36.5 131.5 Up 04:49:34 - 05:19:34 92
Idyllwild 05:04:43 -45.5 Dark Down 35.9 128.8 Up 04:49:43 - 05:19:43 77
DCO 05:04:30 -47.1 Dark Down 37.2 133.0 Up 04:49:30 - 05:19:30 69
Lake Havasu City 05:04:35 -46.7 Dark Down 36.9 131.5 Up 04:49:35 - 05:19:35 61
Parker 05:04:35 -46.9 Dark Down 37.2 131.3 Up 04:49:35 - 05:19:35 38
Blythe 05:04:38 -47.0 Dark Down 37.4 130.7 Up 04:49:38 - 05:19:38 13
Calipatria 05:04:41 -46.6 Dark Down 37.1 129.6 Up 04:49:41 - 05:19:41 7
Yuma 05:04:40 -47.5 Dark Down 37.9 130.2 Up 04:49:40 - 05:19:40 -45
George/Scottsdale 05:04:30 -48.8 Dark Down 39.0 133.5 Up 04:49:30 - 05:19:30 -54

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 469372, (2023/10/08 05:04UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:23  1.2 37.87 146
Diphda         00:43:35.7 -17:59:11  2.0 13.22 120
25 Cet         01:03:02.4 -04:50:14  5.3  0.77 111
PPM 182889     00:58:45.8 -05:53:00  6.6  0.78 112
PPM 182929     01:01:00.3 -05:19:06  9.8  0.23 111
469372         01:01:31.4 -05:30:29 14.2       111
Positions are for J2000

Event circumstances last updated at 2020/02/26 23:58:45 UT

Marc W. Buie, Southwest Research Institute

RECON