RECON: TNO occultation with 145453

Event between (145453) 05RR43 and star GA1060:00737745 with event index number of 2469344

Geocentric closest approach at 2024/11/09 05:06:09 UTC

J2000 position of star is 05:03:05.6 +17:09:57
Equinox of date position of star is 05:04:30.1 +17:11:55
Stellar brightness G=17.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 119 degrees from the moon. Moon is 50% illuminated.
Apparent brightness V=20.2

[RECON map]
Object is 40.4 AU from the Sun and 39.5 AU from the Earth.
Apparent velocity is 22.2 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 72 seconds.
The 1-sigma cross-track error in the shadow position is 1508 km.
The sky-plane scale is 28674.4 km/arcsec.

The object has an absolute magnitude Hv=4.1
Diameter=883.1 km assuming a 5% albedo -- 40.4 sec chord
Diameter=360.5 km assuming a 30% albedo -- 16.5 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 145453, (2024/11/09 05:06UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:21.0 +16:33:27  0.8  6.53 112
Bellatrix      05:26:27.9 +06:22:13  1.6 12.08 121
PPM 120426     04:58:48.6 +17:11:25  6.3  1.37 118
PPM 120566     05:06:17.1 +18:17:11  7.7  1.16 119
PPM 120539     05:04:40.0 +17:19:25  9.7  0.13 119
145453         05:04:32.0 +17:11:58 17.0       119
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 5.0 sigma about the mid-time.
The median site spacing is 22.5 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)
Kamloops 05:08:49 -44.1 Dark Up 25.8 94.1 Low 05:02:20 - 05:15:18 -1238
Kelowna 05:08:51 -45.1 Dark Up 26.4 94.5 Low 05:02:22 - 05:15:20 -1316
Peachland 05:08:52 -45.0 Dark Up 26.2 94.2 Low 05:02:23 - 05:15:21 -1318
Victoria 05:09:00 -43.5 Dark Up 23.9 90.8 Low 05:02:31 - 05:15:29 -1329
Summerland 05:08:52 -45.1 Dark Up 26.3 94.2 Low 05:02:23 - 05:15:21 -1331
Penticton 05:08:53 -45.2 Dark Up 26.4 94.2 Low 05:02:24 - 05:15:22 -1338
Oliver 05:08:54 -45.4 Dark Up 26.4 94.1 Low 05:02:25 - 05:15:23 -1364
Anarchist Mountain Observatory 05:08:54 -45.6 Dark Up 26.6 94.1 Low 05:02:25 - 05:15:23 -1381
Sleaford 05:08:24 -49.8 Dark Up 34.3 107.1 Up 05:01:55 - 05:14:53 -1423
Okanogan 05:08:57 -45.8 Dark Up 26.5 93.6 Low 05:02:28 - 05:15:26 -1424
Brewster 05:08:58 -45.8 Dark Up 26.3 93.4 Low 05:02:29 - 05:15:27 -1440
Manson/Chelan 05:08:59 -45.7 Dark Up 26.1 93.0 Low 05:02:30 - 05:15:28 -1448
Wenatchee 05:09:01 -45.9 Dark Up 26.0 92.6 Low 05:02:32 - 05:15:30 -1480
Ellensburg 05:09:03 -46.0 Dark Up 25.9 92.3 Low 05:02:34 - 05:15:32 -1506
Yakima 05:09:05 -46.2 Dark Up 25.9 92.1 Low 05:02:36 - 05:15:34 -1537
Toppenish/White Swan 05:09:05 -46.4 Dark Up 26.0 92.1 Low 05:02:36 - 05:15:34 -1558
The Dalles 05:09:09 -46.3 Dark Up 25.5 91.1 Low 05:02:40 - 05:15:38 -1600
PNWRO 05:09:05 -47.5 Dark Up 27.1 93.0 Low 05:02:36 - 05:15:34 -1620
Maupin 05:09:10 -46.5 Dark Up 25.6 91.0 Low 05:02:41 - 05:15:39 -1635
Sisters 05:09:14 -46.6 Dark Up 25.3 90.3 Low 05:02:45 - 05:15:43 -1692
Bend 05:09:14 -46.9 Dark Up 25.5 90.3 Low 05:02:45 - 05:15:43 -1717
Oregon Observatory 05:09:15 -46.9 Dark Up 25.4 90.2 Low 05:02:46 - 05:15:44 -1728
Chiloquin 05:09:20 -47.2 Dark Up 25.1 89.3 Low 05:02:51 - 05:15:49 -1824
Klamath Falls 05:09:21 -47.4 Dark Up 25.1 89.2 Low 05:02:52 - 05:15:50 -1854
Cedarville 05:09:21 -48.7 Dark Up 26.3 89.9 Low 05:02:52 - 05:15:50 -1950
Fall River/Burney 05:09:25 -48.1 Dark Up 25.4 88.9 Low 05:02:56 - 05:15:54 -1961
Greenville 05:09:27 -48.8 Dark Up 25.7 88.7 Low 05:02:58 - 05:15:56 -2048
Gimple 05:09:27 -48.8 Dark Up 25.8 88.8 Low 05:02:58 - 05:15:56 -2050
Quincy 05:09:28 -48.9 Dark Up 25.7 88.6 Low 05:02:59 - 05:15:57 -2065
Portola 05:09:28 -49.2 Dark Up 26.1 88.9 Low 05:02:59 - 05:15:57 -2087
Reno 05:09:27 -49.8 Dark Up 26.6 89.2 Low 05:02:58 - 05:15:56 -2127
Carson City 05:09:29 -50.0 Dark Up 26.6 89.0 Low 05:03:00 - 05:15:58 -2158
Gardnerville 05:09:29 -50.1 Dark Up 26.6 88.9 Low 05:03:00 - 05:15:58 -2180
Yerington 05:09:28 -50.5 Dark Up 27.1 89.3 Low 05:02:59 - 05:15:57 -2191
Hawthorne 05:09:30 -51.1 Dark Up 27.5 89.4 Low 05:03:01 - 05:15:59 -2245
Lee Vining 05:09:32 -50.9 Dark Up 27.1 88.8 Low 05:03:03 - 05:16:01 -2281
Bishop 05:09:32 -51.7 Dark Up 27.7 88.9 Low 05:03:03 - 05:16:01 -2353
Dunrhomin 05:09:01 -58.9 Dark Up 37.7 99.5 Up 05:02:32 - 05:15:30 -2422
Beatty 05:09:31 -53.1 Dark Up 29.0 89.7 Low 05:03:02 - 05:16:00 -2437
Nikitin 05:09:01 -59.0 Dark Up 37.7 99.3 Up 05:02:32 - 05:15:30 -2438
CU-SBO 05:09:01 -59.0 Dark Up 37.6 99.2 Up 05:02:32 - 05:15:30 -2442
Wildwood 05:09:42 -52.7 Dark Up 27.4 87.1 Low 05:03:13 - 05:16:11 -2641
Patrick 05:09:31 -55.8 Dark Up 31.3 90.5 Up 05:03:02 - 05:16:00 -2647
Laughlin/Bullhead City 05:09:33 -55.4 Dark Up 30.8 89.9 Up 05:03:04 - 05:16:02 -2651
Lake Havasu City 05:09:34 -55.8 Dark Up 31.0 89.7 Up 05:03:05 - 05:16:03 -2720
Idyllwild 05:09:40 -54.3 Dark Up 29.0 88.0 Low 05:03:11 - 05:16:09 -2725
Calipatria 05:09:40 -55.4 Dark Up 30.0 88.2 Low 05:03:11 - 05:16:09 -2815
George/Scottsdale 05:09:32 -58.0 Dark Up 33.0 90.6 Up 05:03:03 - 05:16:01 -2857
Yuma 05:09:40 -56.3 Dark Up 30.7 88.5 Up 05:03:11 - 05:16:09 -2879

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 145453, (2024/11/09 05:06UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8  6.53 112
Bellatrix      05:25:07.8 +06:20:58  1.6 12.08 121
PPM 120426     04:57:22.2 +17:09:12  6.3  1.37 118
PPM 120566     05:04:50.0 +18:15:14  7.7  1.16 119
PPM 120539     05:03:13.5 +17:17:24  9.7  0.13 119
145453         05:03:05.6 +17:09:57 17.0       119
Positions are for J2000

Event circumstances last updated at 2024/04/23 03:21:21 UT

Marc W. Buie, Southwest Research Institute

RECON