RECON: TNO occultation with 523741

Event between (523741) 14TY85 and star GA1180:00676779 with event index number of 2323831

Geocentric closest approach at 2023/01/28 09:50:33 UTC

J2000 position of star is 04:00:28.7 +28:34:01
Equinox of date position of star is 04:01:49.5 +28:37:38
Stellar brightness G=14.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 29 degrees from the moon. Moon is 48% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 32.8 AU from the Sun and 32.3 AU from the Earth.
The TNO is moving 8.2 km/sec on the sky relative to the star, or, 1.3 arcsec/hr.
The 1-sigma error in the time of the event is 231 seconds.
The 1-sigma cross-track error in the shadow position is 1468 km.
The sky-plane scale is 23437.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=288.4 km assuming a 5% albedo -- 33.7 sec chord
Diameter=117.7 km assuming a 30% albedo -- 13.7 sec chord
Dynamical classification is CENTAURS
 
 
 
 
 
 

Star training set for 523741, (2023/01/28 09:52UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:14.8 +16:33:14  0.8 14.56  35
44Zet Per      03:55:35.3 +31:57:01  2.8  3.59  30
44 Tau         04:12:14.4 +26:32:21  5.4  3.10  31
PPM 093180     04:03:40.2 +28:11:21  8.5  0.59  30
PPM 093189     04:04:24.6 +28:31:05  9.3  0.56  30
PPM 093167     04:02:39.8 +28:31:33 11.2  0.20  29
523741         04:01:54.2 +28:37:51 14.6        30
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 3.9 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.0 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 09:39:22 -53.3 Dark Down 19.9 291.1 Really Low 09:24:22 - 09:54:22 -1677
Kelowna 09:39:20 -53.7 Dark Down 19.8 291.1 Really Low 09:24:20 - 09:54:20 -1718
Peachland 09:39:18 -53.9 Dark Down 20.0 291.0 Really Low 09:24:18 - 09:54:18 -1738
Summerland 09:39:18 -54.0 Dark Down 19.9 291.1 Really Low 09:24:18 - 09:54:18 -1748
Penticton 09:39:15 -54.0 Dark Down 19.8 291.2 Really Low 09:24:15 - 09:54:15 -1751
Oliver 09:39:14 -54.3 Dark Down 19.7 291.3 Really Low 09:24:14 - 09:54:14 -1784
Anarchist Mountain Observatory 09:39:11 -54.4 Dark Down 19.5 291.5 Really Low 09:24:11 - 09:54:11 -1793
Tonasket 09:39:12 -54.6 Dark Down 19.4 291.5 Really Low 09:24:12 - 09:54:12 -1824
Okanogan 09:39:09 -55.0 Dark Down 19.4 291.5 Really Low 09:24:09 - 09:54:09 -1861
Brewster 09:39:08 -55.3 Dark Down 19.4 291.5 Really Low 09:24:08 - 09:54:08 -1893
Manson/Chelan 09:39:08 -55.6 Dark Down 19.6 291.3 Really Low 09:24:08 - 09:54:08 -1924
Victoria 09:39:18 -56.3 Dark Down 21.8 289.0 Low 09:24:18 - 09:54:18 -1968
Wenatchee 09:39:06 -56.0 Dark Down 19.5 291.3 Really Low 09:24:06 - 09:54:06 -1975
Ellensburg 09:39:03 -56.5 Dark Down 19.5 291.3 Really Low 09:24:03 - 09:54:03 -2022
Dunrhomin 09:38:23 -51.9 Dark Down 6.7 302.1 Really Low 09:23:23 - 09:53:23 -2030
Pasco 09:38:57 -56.4 Dark Down 18.3 292.5 Really Low 09:23:57 - 09:53:57 -2043
PNWRO 09:38:57 -56.5 Dark Down 18.1 292.7 Really Low 09:23:57 - 09:53:57 -2059
Yakima 09:39:00 -56.8 Dark Down 19.4 291.5 Really Low 09:24:00 - 09:54:00 -2061
Toppenish/White Swan 09:39:01 -56.9 Dark Down 19.2 291.6 Really Low 09:24:01 - 09:54:01 -2075
Goldendale 09:38:57 -57.5 Dark Down 19.3 291.5 Really Low 09:23:57 - 09:53:57 -2143
The Dalles 09:38:59 -57.8 Dark Down 19.4 291.4 Really Low 09:23:59 - 09:53:59 -2177
Maupin 09:38:55 -58.1 Dark Down 19.2 291.6 Really Low 09:23:55 - 09:53:55 -2213
Redmond 09:38:52 -58.9 Dark Down 19.0 291.8 Really Low 09:23:52 - 09:53:52 -2304
Sisters 09:38:51 -59.0 Dark Down 19.2 291.5 Really Low 09:23:51 - 09:53:51 -2315
Bend 09:38:52 -59.1 Dark Down 19.0 291.8 Really Low 09:23:52 - 09:53:52 -2329
Oregon Observatory 09:38:52 -59.3 Dark Down 19.0 291.8 Really Low 09:23:52 - 09:53:52 -2350
La Pine/Gilchrist 09:38:49 -59.5 Dark Down 19.0 291.8 Really Low 09:23:49 - 09:53:49 -2372
North Lake 09:38:45 -59.5 Dark Down 18.4 292.3 Really Low 09:23:45 - 09:53:45 -2393
Paisley 09:38:43 -59.8 Dark Down 18.0 292.6 Really Low 09:23:43 - 09:53:43 -2434
Lakeview 09:38:40 -60.1 Dark Down 17.6 292.9 Really Low 09:23:40 - 09:53:40 -2476
Chiloquin 09:38:45 -60.5 Dark Down 18.8 291.9 Really Low 09:23:45 - 09:53:45 -2493
Klamath Falls 09:38:43 -60.7 Dark Down 18.6 292.1 Really Low 09:23:43 - 09:53:43 -2524
Cedarville 09:38:36 -60.5 Dark Down 17.3 293.2 Really Low 09:23:36 - 09:53:36 -2534
Fall River/Burney 09:38:39 -61.4 Dark Down 17.9 292.6 Really Low 09:23:39 - 09:53:39 -2626
Susanville 09:38:32 -61.5 Dark Down 17.2 293.2 Really Low 09:23:32 - 09:53:32 -2660
Gimple 09:38:33 -61.8 Dark Down 17.2 293.2 Really Low 09:23:33 - 09:53:33 -2695
Greenville 09:38:33 -61.9 Dark Down 17.3 293.1 Really Low 09:23:33 - 09:53:33 -2698
Portola 09:38:31 -61.8 Dark Down 16.8 293.5 Really Low 09:23:31 - 09:53:31 -2712
Reno 09:38:31 -61.7 Dark Down 16.2 293.9 Really Low 09:23:31 - 09:53:31 -2714
Quincy 09:38:33 -62.0 Dark Down 17.2 293.2 Really Low 09:23:33 - 09:53:33 -2718
Yerington 09:38:26 -61.7 Dark Down 15.6 294.4 Really Low 09:23:26 - 09:53:26 -2743
Carson City 09:38:29 -61.9 Dark Down 16.1 294.0 Really Low 09:23:29 - 09:53:29 -2748
Tonopah 09:38:19 -61.1 Dark Down 13.8 295.7 Really Low 09:23:19 - 09:53:19 -2756
Hawthorne 09:38:25 -61.6 Dark Down 15.0 294.8 Really Low 09:23:25 - 09:53:25 -2767
Gardnerville 09:38:27 -62.0 Dark Down 16.0 294.1 Really Low 09:23:27 - 09:53:27 -2770
Indian Springs 09:38:16 -60.9 Dark Down 12.1 296.8 Really Low 09:23:16 - 09:53:16 -2836
Lee Vining 09:38:24 -62.3 Dark Down 15.1 294.7 Really Low 09:23:24 - 09:53:24 -2842
Beatty 09:38:16 -61.4 Dark Down 13.0 296.1 Really Low 09:23:16 - 09:53:16 -2850
Henderson 09:38:10 -60.7 Dark Down 11.3 297.2 Really Low 09:23:10 - 09:53:10 -2858
Patrick 09:38:07 -60.2 Dark Down 10.3 297.9 Really Low 09:23:07 - 09:53:07 -2870
Bishop 09:38:19 -62.2 Dark Down 14.4 295.2 Really Low 09:23:19 - 09:53:19 -2871
Kingman/Dolan Springs 09:38:08 -60.5 Dark Down 10.3 297.8 Really Low 09:23:08 - 09:53:08 -2899
Laughlin/Bullhead City 09:38:10 -60.9 Dark Down 10.7 297.6 Really Low 09:23:10 - 09:53:10 -2924
George/Scottsdale 09:38:01 -59.5 Dark Down 8.0 299.1 Really Low 09:23:01 - 09:53:01 -2941
Mohave Valley 09:38:07 -61.0 Dark Down 10.5 297.6 Really Low 09:23:07 - 09:53:07 -2950
Lake Havasu City 09:38:07 -61.0 Dark Down 10.2 297.8 Really Low 09:23:07 - 09:53:07 -2978
Parker 09:38:08 -61.1 Dark Down 10.0 297.9 Really Low 09:23:08 - 09:53:08 -3011
Blythe 09:38:04 -61.6 Dark Down 10.0 297.8 Really Low 09:23:04 - 09:53:04 -3074
Idyllwild 09:38:07 -63.1 Dark Down 11.6 296.8 Really Low 09:23:07 - 09:53:07 -3156
Calipatria 09:38:05 -62.5 Dark Down 10.4 297.4 Really Low 09:23:05 - 09:53:05 -3164
CPSLO 09:38:20 -64.9 Dark Down 15.1 294.5 Really Low 09:23:20 - 09:53:20 -3165
Yuma 09:38:03 -62.0 Dark Down 9.6 297.9 Really Low 09:23:03 - 09:53:03 -3166
Wildwood 09:38:10 -64.3 Dark Down 13.1 295.8 Really Low 09:23:10 - 09:53:10 -3201

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 523741, (2023/01/28 09:52UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 14.56  35
44Zet Per      03:54:07.9 +31:53:01  2.8  3.59  30
44 Tau         04:10:49.8 +26:28:51  5.4  3.10  31
PPM 093180     04:02:14.9 +28:07:35  8.5  0.59  30
PPM 093189     04:02:59.0 +28:27:21  9.3  0.56  30
PPM 093167     04:01:14.3 +28:27:46 11.2  0.20  29
523741         04:00:28.7 +28:34:01 14.6        29
Positions are for J2000

Event circumstances last updated at 2021/10/16 01:14:13 UT

Marc W. Buie, Southwest Research Institute

RECON