RECON: TNO occultation with 385458

Event between (385458) 03SP317 and star GA0980:00095475 with event index number of 2374911

Geocentric closest approach at 2024/10/28 05:30:51 UTC

J2000 position of star is 01:04:38.2 +09:51:45
Equinox of date position of star is 01:05:46.7 +09:58:45
Stellar brightness G=15.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 150 degrees from the moon. Moon is 16% illuminated.
TNO apparent brightness V=23.4

[RECON map]
TNO is 41.6 AU from the Sun and 40.7 AU from the Earth.
The TNO is moving 23.9 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 223 seconds.
The 1-sigma cross-track error in the shadow position is 4022 km.
The sky-plane scale is 29512.9 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=218.8 km assuming a 5% albedo -- 9.2 sec chord
Diameter=89.3 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 385458, (2024/10/28 05:31UT)
Object            RA         Dec     mag  sep  mel
Algenib        00:14:31.0 +15:19:17  2.8 13.62 155
71Eps Psc      01:04:14.1 +08:01:23  4.3  2.02 151
PPM 144197     01:04:00.5 +09:15:56  7.2  0.87 151
PPM 144236     01:05:56.4 +09:43:07  8.8  0.28 150
385458         01:05:56.1 +09:59:42 15.3       149
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 4.0 sigma about the mid-time.
The median site spacing is 21.2 km RECON observability=1.0 and success probability=3.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 05:30:46 -43.6 Dark Down 47.9 150.1 Up 05:15:46 - 05:45:46 9529
Clarence Fulton 05:30:30 -44.5 Dark Down 47.6 156.6 Up 05:15:30 - 05:45:30 9526
Peachland 05:30:33 -44.6 Dark Down 47.9 155.8 Up 05:15:33 - 05:45:33 9505
Kelowna 05:30:32 -44.7 Dark Down 47.9 156.2 Up 05:15:32 - 05:45:32 9504
Summerland 05:30:33 -44.8 Dark Down 48.1 155.8 Up 05:15:33 - 05:45:33 9492
Penticton 05:30:33 -44.9 Dark Down 48.1 156.0 Up 05:15:33 - 05:45:33 9484
Oliver 05:30:34 -45.1 Dark Down 48.5 155.8 Up 05:15:34 - 05:45:34 9459
Anarchist Mountain Observatory 05:30:34 -45.3 Dark Down 48.7 156.0 Up 05:15:34 - 05:45:34 9442
Tonasket 05:30:35 -45.5 Dark Down 48.9 155.8 Up 05:15:35 - 05:45:35 9422
Okanogan 05:30:35 -45.6 Dark Down 49.2 155.4 Up 05:15:35 - 05:45:35 9402
Brewster 05:30:37 -45.7 Dark Down 49.4 155.0 Up 05:15:37 - 05:45:37 9389
Manson/Chelan 05:30:38 -45.7 Dark Down 49.5 154.3 Up 05:15:38 - 05:45:38 9385
Wenatchee 05:30:40 -45.9 Dark Down 49.9 153.9 Up 05:15:40 - 05:45:40 9357
Ellensburg 05:30:41 -46.0 Dark Down 50.2 153.3 Up 05:15:41 - 05:45:41 9334
Yakima 05:30:43 -46.3 Dark Down 50.5 153.1 Up 05:15:43 - 05:45:43 9305
Toppenish/White Swan 05:30:43 -46.5 Dark Down 50.8 153.2 Up 05:15:43 - 05:45:43 9283
Goldendale 05:30:45 -46.6 Dark Down 51.1 152.3 Up 05:15:45 - 05:45:45 9256
The Dalles 05:30:46 -46.5 Dark Down 51.2 151.6 Up 05:15:46 - 05:45:46 9251
Pasco 05:30:39 -47.2 Dark Down 51.3 155.0 Up 05:15:39 - 05:45:39 9234
Maupin 05:30:47 -46.9 Dark Down 51.6 151.5 Up 05:15:47 - 05:45:47 9217
PNWRO 05:30:39 -47.5 Dark Down 51.6 155.2 Up 05:15:39 - 05:45:39 9209
Sisters 05:30:51 -47.1 Dark Down 52.2 150.3 Up 05:15:51 - 05:45:51 9168
Redmond 05:30:49 -47.3 Dark Down 52.4 150.8 Up 05:15:49 - 05:45:49 9153
Bend 05:30:51 -47.4 Dark Down 52.5 150.5 Up 05:15:51 - 05:45:51 9141
Oregon Observatory 05:30:51 -47.4 Dark Down 52.6 150.2 Up 05:15:51 - 05:45:51 9133
La Pine/Gilchrist 05:30:52 -47.5 Dark Down 52.8 150.0 Up 05:15:52 - 05:45:52 9119
North Lake 05:30:51 -48.1 Dark Down 53.4 150.6 Up 05:15:51 - 05:45:51 9066
Chiloquin 05:30:56 -47.9 Dark Down 53.6 148.7 Up 05:15:56 - 05:45:56 9046
Klamath Falls 05:30:56 -48.2 Dark Down 53.9 148.6 Up 05:15:56 - 05:45:56 9017
Paisley 05:30:51 -48.6 Dark Down 54.0 150.8 Up 05:15:51 - 05:45:51 9011
Lakeview 05:30:53 -49.0 Dark Down 54.5 150.8 Up 05:15:53 - 05:45:53 8965
Fall River/Burney 05:30:57 -49.0 Dark Down 55.1 148.3 Up 05:15:57 - 05:45:57 8911
Cedarville 05:30:54 -49.5 Dark Down 55.1 150.6 Up 05:15:54 - 05:45:54 8908
Susanville 05:30:57 -49.8 Dark Down 55.9 149.0 Up 05:15:57 - 05:45:57 8836
Greenville 05:30:58 -49.8 Dark Down 56.0 148.3 Up 05:15:58 - 05:45:58 8824
Gimple 05:30:59 -49.9 Dark Down 56.1 148.5 Up 05:15:59 - 05:45:59 8821
Quincy 05:30:59 -49.9 Dark Down 56.2 148.2 Up 05:15:59 - 05:45:59 8807
Portola 05:30:58 -50.3 Dark Down 56.5 148.9 Up 05:15:58 - 05:45:58 8781
Reno 05:30:57 -50.9 Dark Down 57.0 149.7 Up 05:15:57 - 05:45:57 8736
Carson City 05:30:58 -51.1 Dark Down 57.3 149.5 Up 05:15:58 - 05:45:58 8706
Gardnerville 05:30:58 -51.2 Dark Down 57.5 149.4 Up 05:15:58 - 05:45:58 8685
Yerington 05:30:55 -51.6 Dark Down 57.7 150.4 Up 05:15:55 - 05:45:55 8668
Hawthorne 05:30:55 -52.2 Dark Down 58.3 150.9 Up 05:15:55 - 05:45:55 8611
Lee Vining 05:30:58 -52.2 Dark Down 58.6 149.6 Up 05:15:58 - 05:45:58 8582
Tonopah 05:30:52 -53.4 Dark Down 59.3 153.0 Up 05:15:52 - 05:45:52 8521
Bishop 05:30:57 -53.0 Dark Down 59.4 150.4 Up 05:15:57 - 05:45:57 8505
CPSLO 05:31:09 -52.4 Dark Down 60.2 144.6 Up 05:16:09 - 05:46:09 8413
Beatty 05:30:53 -54.3 Dark Down 60.5 153.0 Up 05:15:53 - 05:45:53 8406
Indian Springs 05:30:50 -55.2 Dark Down 61.1 154.7 Up 05:15:50 - 05:45:50 8339
Dunrhomin 05:30:09 -58.5 Dark Down 59.6 176.6 Up 05:15:09 - 05:45:09 8296
Henderson 05:30:49 -56.0 Dark Down 61.9 155.7 Up 05:15:49 - 05:45:49 8268
Wildwood 05:31:05 -54.5 Dark Down 62.2 147.1 Up 05:16:05 - 05:46:05 8232
Laughlin/Bullhead City 05:30:49 -56.7 Dark Down 62.8 155.8 Up 05:15:49 - 05:45:49 8176
Patrick 05:30:46 -57.1 Dark Down 62.8 157.4 Up 05:15:46 - 05:45:46 8172
Kingman/Dolan Springs 05:30:47 -57.1 Dark Down 62.9 156.9 Up 05:15:47 - 05:45:47 8159
Mohave Valley 05:30:49 -56.9 Dark Down 63.0 155.6 Up 05:15:49 - 05:45:49 8152
Idyllwild 05:30:59 -56.0 Dark Down 63.3 150.3 Up 05:15:59 - 05:45:59 8130
Lake Havasu City 05:30:50 -57.3 Dark Down 63.5 155.8 Up 05:15:50 - 05:45:50 8107
Parker 05:30:51 -57.5 Dark Down 63.8 155.6 Up 05:15:51 - 05:45:51 8075
Blythe 05:30:53 -57.6 Dark Down 64.2 154.5 Up 05:15:53 - 05:45:53 8039
Calipatria 05:30:57 -57.2 Dark Down 64.3 152.1 Up 05:15:57 - 05:45:57 8030
Yuma 05:30:54 -58.0 Dark Down 65.0 153.6 Up 05:15:54 - 05:45:54 7958
George/Scottsdale 05:30:43 -59.4 Dark Down 65.0 160.4 Up 05:15:43 - 05:45:43 7947

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 385458, (2024/10/28 05:31UT)
Object            RA         Dec     mag  sep  mel
Algenib        00:13:14.2 +15:11:01  2.8 13.62 155
71Eps Psc      01:02:56.5 +07:53:25  4.3  2.02 151
PPM 144197     01:02:42.7 +09:07:58  7.2  0.87 151
PPM 144236     01:04:38.5 +09:35:09  8.8  0.28 150
385458         01:04:38.2 +09:51:45 15.3       150
Positions are for J2000

Event circumstances last updated at 2021/10/30 23:07:31 UT

Marc W. Buie, Southwest Research Institute

RECON