RECON: TNO occultation with 523647

Event between (523647) 10VV224 and star GA1020:00419503 with event index number of 1322923

Geocentric closest approach at 2023/10/31 07:12:32 UTC

J2000 position of star is 04:10:24.3 +12:50:56
Equinox of date position of star is 04:11:31.8 +12:54:01
Stellar brightness G=14.5, use SENSEUP=128
Star is 13 degrees from the moon. Moon is 93% illuminated.
TNO apparent brightness V=25.8

[RECON map]
TNO is 37.4 AU from the Sun and 36.5 AU from the Earth.
The TNO is moving 22.7 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 195 seconds.
The 1-sigma cross-track error in the shadow position is 2313 km.
The sky-plane scale is 26508.0 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=380.2 km assuming a 5% albedo -- 2.7 sec chord
Diameter=155.2 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 523647, (2023/10/31 07:13UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:17.4 +16:33:20  0.8  7.17   9
Menkar         03:03:31.7 +04:10:55  2.5 18.97  29
PPM 119653     04:10:21.7 +13:27:35  5.9  0.64  13
PPM 119671     04:11:41.3 +12:08:20  8.2  0.77  14
PPM 119648     04:10:08.7 +13:05:02  9.6  0.42  13
PPM 119679     04:12:20.0 +12:42:09 10.9  0.25  13
523647         04:11:44.1 +12:54:34 14.5        13
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 4.6 sigma about the mid-time.
The median site spacing is 16.8 km RECON observability=1.0 and success probability=7.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 07:13:23 -54.4 Dark Up 42.3 125.1 Up 06:58:23 - 07:28:23 5029
Clarence Fulton 07:13:08 -53.4 Dark Up 43.3 131.0 Up 06:58:08 - 07:28:08 5019
Peachland 07:13:10 -53.8 Dark Up 43.4 130.1 Up 06:58:10 - 07:28:10 5001
Kelowna 07:13:09 -53.7 Dark Up 43.5 130.5 Up 06:58:09 - 07:28:09 4999
Summerland 07:13:10 -53.9 Dark Up 43.6 130.1 Up 06:58:10 - 07:28:10 4989
Penticton 07:13:10 -54.0 Dark Up 43.7 130.2 Up 06:58:10 - 07:28:10 4981
Oliver 07:13:11 -54.4 Dark Up 43.9 129.9 Up 06:58:11 - 07:28:11 4958
Anarchist Mountain Observatory 07:13:11 -54.6 Dark Up 44.1 130.0 Up 06:58:11 - 07:28:11 4942
Tonasket 07:13:13 -54.9 Dark Up 44.3 129.7 Up 06:58:13 - 07:28:13 4923
Okanogan 07:13:13 -55.2 Dark Up 44.4 129.3 Up 06:58:13 - 07:28:13 4906
Brewster 07:13:16 -55.4 Dark Up 44.5 128.9 Up 06:58:16 - 07:28:16 4894
Manson/Chelan 07:13:17 -55.6 Dark Up 44.4 128.3 Up 06:58:17 - 07:28:17 4891
Entiat 07:13:17 -55.8 Dark Up 44.5 128.0 Up 06:58:17 - 07:28:17 4879
Wenatchee 07:13:19 -56.0 Dark Up 44.6 127.7 Up 06:58:19 - 07:28:19 4865
Ellensburg 07:13:21 -56.4 Dark Up 44.8 127.2 Up 06:58:21 - 07:28:21 4844
Yakima 07:13:22 -56.7 Dark Up 45.0 126.8 Up 06:58:22 - 07:28:22 4817
Toppenish/White Swan 07:13:22 -57.0 Dark Up 45.2 126.9 Up 06:58:22 - 07:28:22 4797
Goldendale 07:13:25 -57.4 Dark Up 45.3 125.9 Up 06:58:25 - 07:28:25 4773
The Dalles 07:13:27 -57.6 Dark Up 45.2 125.3 Up 06:58:27 - 07:28:27 4769
Pasco 07:13:20 -57.3 Dark Up 46.0 128.2 Up 06:58:20 - 07:28:20 4750
Maupin 07:13:28 -58.0 Dark Up 45.6 125.1 Up 06:58:28 - 07:28:28 4737
PNWRO 07:13:19 -57.6 Dark Up 46.3 128.3 Up 06:58:19 - 07:28:19 4726
Sisters 07:13:32 -58.8 Dark Up 45.8 123.8 Up 06:58:32 - 07:28:32 4692
Redmond 07:13:31 -58.9 Dark Up 46.0 124.3 Up 06:58:31 - 07:28:31 4677
Bend 07:13:32 -59.1 Dark Up 46.1 123.9 Up 06:58:32 - 07:28:32 4667
Oregon Observatory 07:13:33 -59.2 Dark Up 46.1 123.6 Up 06:58:33 - 07:28:33 4659
La Pine/Gilchrist 07:13:34 -59.4 Dark Up 46.2 123.4 Up 06:58:34 - 07:28:34 4646
North Lake 07:13:33 -59.9 Dark Up 46.8 123.7 Up 06:58:33 - 07:28:33 4596
Klamath Falls 07:13:39 -60.7 Dark Up 46.8 121.8 Up 06:58:39 - 07:28:39 4551
Paisley 07:13:35 -60.5 Dark Up 47.3 123.6 Up 06:58:35 - 07:28:35 4544
Lakeview 07:13:36 -61.1 Dark Up 47.7 123.4 Up 06:58:36 - 07:28:36 4501
Fall River/Burney 07:13:43 -61.9 Dark Up 47.7 121.2 Up 06:58:43 - 07:28:43 4452
Cedarville 07:13:38 -61.7 Dark Up 48.2 123.0 Up 06:58:38 - 07:28:38 4446
Susanville 07:13:42 -62.7 Dark Up 48.5 121.4 Up 06:58:42 - 07:28:42 4379
Greenville 07:13:44 -62.9 Dark Up 48.4 120.8 Up 06:58:44 - 07:28:44 4369
Gimple 07:13:44 -62.9 Dark Up 48.5 120.9 Up 06:58:44 - 07:28:44 4366
Quincy 07:13:44 -63.1 Dark Up 48.5 120.6 Up 06:58:44 - 07:28:44 4353
Portola 07:13:44 -63.3 Dark Up 48.9 121.0 Up 06:58:44 - 07:28:44 4327
Reno 07:13:43 -63.7 Dark Up 49.5 121.5 Up 06:58:43 - 07:28:43 4285
Carson City 07:13:44 -64.1 Dark Up 49.7 121.1 Up 06:58:44 - 07:28:44 4256
Gardnerville 07:13:44 -64.3 Dark Up 49.8 120.9 Up 06:58:44 - 07:28:44 4236
Yerington 07:13:43 -64.4 Dark Up 50.2 121.6 Up 06:58:43 - 07:28:43 4219
Hawthorne 07:13:43 -64.9 Dark Up 50.8 121.7 Up 06:58:43 - 07:28:43 4164
Lee Vining 07:13:46 -65.4 Dark Up 50.8 120.6 Up 06:58:46 - 07:28:46 4138
Tonopah 07:13:40 -65.6 Dark Up 52.0 122.9 Up 06:58:40 - 07:28:40 4078
Bishop 07:13:46 -66.1 Dark Up 51.6 120.8 Up 06:58:46 - 07:28:46 4064
CPSLO 07:13:58 -67.5 Dark Up 51.0 116.2 Up 06:58:58 - 07:28:58 3979
Beatty 07:13:42 -66.8 Dark Up 52.9 122.1 Up 06:58:42 - 07:28:42 3968
Indian Springs 07:13:40 -67.3 Dark Up 53.8 123.0 Up 06:58:40 - 07:28:40 3903
Henderson 07:13:39 -67.9 Dark Up 54.6 123.2 Up 06:58:39 - 07:28:39 3834
Niwot 07:12:58 -63.2 Dark Up 57.5 141.3 Up 06:57:58 - 07:27:58 3829
SwRI 07:12:59 -63.3 Dark Up 57.5 141.0 Up 06:57:59 - 07:27:59 3823
Wildwood 07:13:56 -69.2 Dark Up 53.0 116.9 Up 06:58:56 - 07:28:56 3804
Searchlight/Boulder City 07:13:41 -68.5 Dark Up 54.9 122.6 Up 06:58:41 - 07:28:41 3784
Laughlin/Bullhead City 07:13:41 -68.8 Dark Up 55.3 122.7 Up 06:58:41 - 07:28:41 3746
Patrick 07:13:38 -68.6 Dark Up 55.7 123.9 Up 06:58:38 - 07:28:38 3741
Kingman/Dolan Springs 07:13:39 -68.8 Dark Up 55.7 123.4 Up 06:58:39 - 07:28:39 3729
Mohave Valley 07:13:41 -69.1 Dark Up 55.5 122.4 Up 06:58:41 - 07:28:41 3723
Idyllwild 07:13:51 -70.0 Dark Up 54.6 118.5 Up 06:58:51 - 07:28:51 3705
DCO 07:13:37 -68.9 Dark Up 56.3 124.4 Up 06:58:37 - 07:28:37 3689
Lake Havasu City 07:13:42 -69.5 Dark Up 55.9 122.2 Up 06:58:42 - 07:28:42 3680
Parker 07:13:43 -69.8 Dark Up 56.1 121.8 Up 06:58:43 - 07:28:43 3649
Blythe 07:13:45 -70.3 Dark Up 56.1 120.8 Up 06:58:45 - 07:28:45 3615
Calipatria 07:13:49 -70.7 Dark Up 55.7 119.1 Up 06:58:49 - 07:28:49 3608
Yuma 07:13:48 -71.3 Dark Up 56.6 119.5 Up 06:58:48 - 07:28:48 3537
George/Scottsdale 07:13:37 -70.3 Dark Up 58.0 124.3 Up 06:58:37 - 07:28:37 3522

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 523647, (2023/10/31 07:13UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  7.17   9
Menkar         03:02:16.8 +04:05:21  2.5 18.97  29
PPM 119653     04:09:01.7 +13:23:54  5.9  0.64  13
PPM 119671     04:10:22.0 +12:04:41  8.2  0.77  14
PPM 119648     04:08:48.9 +13:01:20  9.6  0.42  13
PPM 119679     04:11:00.3 +12:38:32 10.9  0.25  13
523647         04:10:24.3 +12:50:56 14.5        13
Positions are for J2000

Event circumstances last updated at 2020/02/27 21:38:42 UT

Marc W. Buie, Southwest Research Institute

RECON