RECON: TNO occultation with 524612

Event between (524612) 03QA112 and star GA0920:00019348 with event index number of 1592779

Geocentric closest approach at 2024/09/18 05:47:27 UTC

J2000 position of star is 00:12:24.5 +02:15:40
Equinox of date position of star is 00:13:24.6 +02:22:11
Stellar brightness G=14.7, use SENSEUP=128
Star is 6 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=23.1

[RECON map]
TNO is 47.7 AU from the Sun and 46.7 AU from the Earth.
The TNO is moving 25.5 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 237 seconds.
The 1-sigma cross-track error in the shadow position is 5426 km.
The sky-plane scale is 33890.2 km/arcsec.

The TNO has an absolute magnitude Hv=6.3
Diameter=331.1 km assuming a 5% albedo -- 13.0 sec chord
Diameter=135.2 km assuming a 30% albedo -- 5.3 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 524612, (2024/09/18 05:47UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:59:00.5 -29:29:26  1.2 36.55  31
Algenib        00:14:30.7 +15:19:15  2.8 12.92  18
44 Psc         00:26:40.3 +02:04:35  5.8  3.26   9
PPM 143221     00:11:56.8 +02:11:35  7.7  0.48   6
PPM 143220     00:11:55.3 +02:26:17  9.0  0.44   6
PPM 143246     00:13:30.5 +02:28:05 10.9  0.08   6
524612         00:13:40.6 +02:23:55 14.7         7
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 3.8 sigma about the mid-time.
The median site spacing is 13.3 km RECON observability=1.0 and success probability=3.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 05:47:56 -32.0 Dark Up 32.6 133.3 Up 05:32:56 - 06:02:56 9849
Summerland 05:47:58 -32.1 Dark Up 32.6 132.9 Up 05:32:58 - 06:02:58 9840
Penticton 05:47:58 -32.2 Dark Up 32.7 133.0 Up 05:32:58 - 06:02:58 9834
Okanagan Falls 05:47:58 -32.4 Dark Up 32.9 132.9 Up 05:32:58 - 06:02:58 9825
Oliver 05:47:59 -32.5 Dark Up 33.0 132.8 Up 05:32:59 - 06:02:59 9816
Anarchist Mountain Observatory 05:47:59 -32.7 Dark Up 33.2 132.9 Up 05:32:59 - 06:02:59 9803
Oroville 05:47:59 -32.8 Dark Up 33.2 132.8 Up 05:32:59 - 06:02:59 9800
Tonasket 05:48:00 -33.0 Dark Up 33.4 132.7 Up 05:33:00 - 06:03:00 9788
Okanogan 05:48:01 -33.2 Dark Up 33.5 132.4 Up 05:33:01 - 06:03:01 9773
Brewster 05:48:02 -33.3 Dark Up 33.6 132.0 Up 05:33:02 - 06:03:02 9763
Manson/Chelan 05:48:04 -33.3 Dark Up 33.6 131.6 Up 05:33:04 - 06:03:04 9760
Wenatchee 05:48:06 -33.6 Dark Up 33.8 131.2 Up 05:33:06 - 06:03:06 9738
Ellensburg 05:48:07 -33.8 Dark Up 34.0 130.7 Up 05:33:07 - 06:03:07 9720
Yakima 05:48:09 -34.1 Dark Up 34.2 130.5 Up 05:33:09 - 06:03:09 9698
Toppenish/White Swan 05:48:09 -34.4 Dark Up 34.5 130.6 Up 05:33:09 - 06:03:09 9682
Goldendale 05:48:12 -34.6 Dark Up 34.6 129.9 Up 05:33:12 - 06:03:12 9660
The Dalles 05:48:13 -34.6 Dark Up 34.5 129.4 Up 05:33:13 - 06:03:13 9656
Pasco 05:48:07 -35.0 Dark Up 35.2 131.8 Up 05:33:07 - 06:03:07 9646
George/Umatilla 05:48:08 -35.2 Dark Up 35.3 131.4 Up 05:33:08 - 06:03:08 9632
Maupin 05:48:14 -35.0 Dark Up 34.9 129.3 Up 05:33:14 - 06:03:14 9629
PNWRO 05:48:07 -35.3 Dark Up 35.5 131.9 Up 05:33:07 - 06:03:07 9626
Madras/Culver 05:48:16 -35.4 Dark Up 35.2 128.9 Up 05:33:16 - 06:03:16 9598
Sisters 05:48:18 -35.4 Dark Up 35.2 128.3 Up 05:33:18 - 06:03:18 9589
Redmond 05:48:17 -35.6 Dark Up 35.4 128.7 Up 05:33:17 - 06:03:17 9579
Bend 05:48:18 -35.7 Dark Up 35.4 128.4 Up 05:33:18 - 06:03:18 9569
Oregon Observatory 05:48:19 -35.8 Dark Up 35.5 128.2 Up 05:33:19 - 06:03:19 9562
La Pine/Gilchrist 05:48:19 -35.9 Dark Up 35.6 128.0 Up 05:33:19 - 06:03:19 9551
North Lake 05:48:19 -36.5 Dark Up 36.2 128.4 Up 05:33:19 - 06:03:19 9510
Chiloquin 05:48:23 -36.6 Dark Up 36.1 127.0 Up 05:33:23 - 06:03:23 9492
Klamath Falls 05:48:24 -36.9 Dark Up 36.3 126.9 Up 05:33:24 - 06:03:24 9469
Paisley 05:48:20 -37.1 Dark Up 36.7 128.4 Up 05:33:20 - 06:03:20 9468
Tulelake 05:48:24 -37.2 Dark Up 36.7 127.1 Up 05:33:24 - 06:03:24 9444
Lakeview 05:48:21 -37.6 Dark Up 37.2 128.3 Up 05:33:21 - 06:03:21 9431
Cedarville 05:48:23 -38.2 Dark Up 37.7 128.1 Up 05:33:23 - 06:03:23 9385
Fall River/Burney 05:48:27 -37.9 Dark Up 37.3 126.6 Up 05:33:27 - 06:03:27 9385
Susanville 05:48:27 -38.8 Dark Up 38.1 127.0 Up 05:33:27 - 06:03:27 9325
Greenville 05:48:28 -38.8 Dark Up 38.1 126.5 Up 05:33:28 - 06:03:28 9315
Gimple 05:48:28 -38.9 Dark Up 38.1 126.6 Up 05:33:28 - 06:03:28 9313
Quincy 05:48:29 -39.0 Dark Up 38.2 126.4 Up 05:33:29 - 06:03:29 9301
Portola 05:48:28 -39.3 Dark Up 38.6 126.8 Up 05:33:28 - 06:03:28 9281
Reno 05:48:27 -39.8 Dark Up 39.1 127.3 Up 05:33:27 - 06:03:27 9247
Carson City 05:48:28 -40.1 Dark Up 39.4 127.1 Up 05:33:28 - 06:03:28 9222
Gardnerville 05:48:29 -40.3 Dark Up 39.5 127.0 Up 05:33:29 - 06:03:29 9204
Yerington 05:48:27 -40.6 Dark Up 39.9 127.6 Up 05:33:27 - 06:03:27 9192
Hawthorne 05:48:27 -41.2 Dark Up 40.5 127.8 Up 05:33:27 - 06:03:27 9147
Lee Vining 05:48:30 -41.4 Dark Up 40.5 126.9 Up 05:33:30 - 06:03:30 9121
Tonopah 05:48:25 -42.3 Dark Up 41.6 129.0 Up 05:33:25 - 06:03:25 9076
Bishop 05:48:30 -42.2 Dark Up 41.3 127.3 Up 05:33:30 - 06:03:30 9059
Lone Pine 05:48:31 -43.0 Dark Up 42.0 127.1 Up 05:33:31 - 06:03:31 8996
Beatty 05:48:27 -43.4 Dark Up 42.6 128.6 Up 05:33:27 - 06:03:27 8982
CPSLO 05:48:37 -42.4 Dark Up 41.1 123.6 Up 05:33:37 - 06:03:37 8974
Indian Springs 05:48:25 -44.2 Dark Up 43.5 129.5 Up 05:33:25 - 06:03:25 8929
SwRI 05:47:48 -45.6 Dark Up 46.5 144.2 Up 05:32:48 - 06:02:48 8881
Henderson 05:48:24 -45.0 Dark Up 44.3 129.9 Up 05:33:24 - 06:03:24 8870
Wildwood 05:48:37 -44.5 Dark Up 43.1 124.7 Up 05:33:37 - 06:03:37 8828
Searchlight/Boulder City 05:48:26 -45.5 Dark Up 44.7 129.5 Up 05:33:26 - 06:03:26 8826
Laughlin/Bullhead City 05:48:26 -45.9 Dark Up 45.1 129.7 Up 05:33:26 - 06:03:26 8794
Patrick 05:48:23 -46.0 Dark Up 45.4 130.7 Up 05:33:23 - 06:03:23 8792
Kingman/Dolan Springs 05:48:24 -46.1 Dark Up 45.4 130.3 Up 05:33:24 - 06:03:24 8781
Mohave Valley 05:48:26 -46.1 Dark Up 45.3 129.5 Up 05:33:26 - 06:03:26 8773
Idyllwild 05:48:35 -45.8 Dark Up 44.6 126.3 Up 05:33:35 - 06:03:35 8747
Lake Havasu City 05:48:27 -46.5 Dark Up 45.7 129.5 Up 05:33:27 - 06:03:27 8736
Parker 05:48:28 -46.8 Dark Up 45.9 129.2 Up 05:33:28 - 06:03:28 8708
Blythe 05:48:30 -47.1 Dark Up 46.1 128.5 Up 05:33:30 - 06:03:30 8677
Calipatria 05:48:33 -46.9 Dark Up 45.8 127.1 Up 05:33:33 - 06:03:33 8667
Yuma 05:48:32 -47.8 Dark Up 46.6 127.7 Up 05:33:32 - 06:03:32 8607

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 524612, (2024/09/18 05:47UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:23  1.2 36.55  31
Algenib        00:13:14.2 +15:11:01  2.8 12.92  18
44 Psc         00:25:24.2 +01:56:22  5.8  3.26   9
PPM 143221     00:10:40.7 +02:03:20  7.7  0.48   6
PPM 143220     00:10:39.3 +02:18:02  9.0  0.44   6
PPM 143246     00:12:14.4 +02:19:50 10.9  0.08   6
524612         00:12:24.5 +02:15:40 14.7         6
Positions are for J2000

Event circumstances last updated at 2019/07/07 22:14:47 UT

Marc W. Buie, Southwest Research Institute

RECON