RECON: TNO occultation with 145451

Event between (145451) 05RM43 and star GA1160:01876503 with event index number of 2550231

Geocentric closest approach at 2028/11/30 09:17:31 UTC

J2000 position of star is 06:03:58.3 +26:38:03
Equinox of date position of star is 06:05:29.4 +26:37:53
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 42 degrees from the moon. Moon is 97% illuminated.
Apparent brightness V=20.7

[RECON map]
Object is 40.2 AU from the Sun and 39.3 AU from the Earth.
Apparent velocity is 23.3 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 98 seconds.
The 1-sigma cross-track error in the shadow position is 1821 km.
The sky-plane scale is 28494.2 km/arcsec.

The object has an absolute magnitude Hv=4.6
Diameter=721.1 km assuming a 5% albedo -- 31.0 sec chord
Diameter=294.4 km assuming a 30% albedo -- 12.7 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 145451, (2028/11/30 09:18UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:44.3 +07:24:36  0.4 19.34  44
Alnath         05:28:07.3 +28:37:45  1.6  8.57  33
PPM 095226     06:02:49.5 +27:34:16  6.0  1.15  41
PPM 095307     06:05:22.1 +26:31:33  7.3  0.14  42
PPM 095312     06:05:34.5 +26:44:07 10.2  0.11  42
145451         06:05:46.6 +26:37:51 16.8        42
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 32.8 km RECON observability=1.0 and success probability=0.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 09:17:15 -48.8 Dark Up 62.9 204.5 Up 09:08:37 - 09:25:53 -4127
Kamloops 09:17:55 -56.4 Dark Up 65.9 175.4 Up 09:09:17 - 09:26:33 -4450
Kelowna 09:17:52 -56.6 Dark Up 66.8 177.2 Up 09:09:14 - 09:26:30 -4524
Peachland 09:17:53 -56.9 Dark Up 66.9 176.5 Up 09:09:15 - 09:26:31 -4538
Summerland 09:17:53 -56.9 Dark Up 67.0 176.7 Up 09:09:15 - 09:26:31 -4553
Penticton 09:17:52 -56.9 Dark Up 67.1 177.0 Up 09:09:14 - 09:26:30 -4558
Oliver 09:17:52 -57.2 Dark Up 67.4 176.9 Up 09:09:14 - 09:26:30 -4594
Anarchist Mountain Observatory 09:17:51 -57.2 Dark Up 67.6 177.4 Up 09:09:13 - 09:26:29 -4609
Okanogan 09:17:52 -57.8 Dark Up 68.2 176.8 Up 09:09:14 - 09:26:30 -4678
Victoria 09:18:03 -59.3 Dark Up 67.8 167.8 Up 09:09:25 - 09:26:41 -4696
Brewster 09:17:52 -58.1 Dark Up 68.5 176.2 Up 09:09:14 - 09:26:30 -4708
Manson/Chelan 09:17:53 -58.4 Dark Up 68.7 175.3 Up 09:09:15 - 09:26:31 -4733
Wenatchee 09:17:54 -58.9 Dark Up 69.2 174.8 Up 09:09:16 - 09:26:32 -4783
Ellensburg 09:17:54 -59.3 Dark Up 69.6 174.1 Up 09:09:16 - 09:26:32 -4828
Yakima 09:17:54 -59.6 Dark Up 70.0 174.0 Up 09:09:16 - 09:26:32 -4871
Toppenish/White Swan 09:17:53 -59.6 Dark Up 70.2 174.3 Up 09:09:15 - 09:26:31 -4892
PNWRO 09:17:48 -59.2 Dark Up 70.6 178.2 Up 09:09:10 - 09:26:26 -4914
The Dalles 09:17:56 -60.6 Dark Up 70.9 172.0 Up 09:09:18 - 09:26:34 -4980
Maupin 09:17:54 -60.8 Dark Up 71.3 172.1 Up 09:09:16 - 09:26:32 -5023
Sisters 09:17:56 -61.7 Dark Up 72.1 170.3 Up 09:09:18 - 09:26:34 -5120
Bend 09:17:55 -61.8 Dark Up 72.4 170.9 Up 09:09:17 - 09:26:33 -5143
Oregon Observatory 09:17:55 -62.0 Dark Up 72.6 170.5 Up 09:09:17 - 09:26:33 -5162
Dunrhomin 09:16:57 -53.8 Dark Up 72.7 222.0 Up 09:08:19 - 09:25:35 -5298
Chiloquin 09:17:56 -63.1 Dark Up 73.8 168.4 Up 09:09:18 - 09:26:34 -5306
Nikitin 09:16:56 -53.8 Dark Up 72.9 222.3 Up 09:08:18 - 09:25:34 -5317
CU-SBO 09:16:58 -53.9 Dark Up 72.9 222.3 Up 09:08:20 - 09:25:36 -5326
Klamath Falls 09:17:55 -63.3 Dark Up 74.1 168.4 Up 09:09:17 - 09:26:33 -5342
Cedarville 09:17:50 -62.9 Dark Up 75.0 173.3 Up 09:09:12 - 09:26:28 -5399
Fall River/Burney 09:17:54 -63.9 Dark Up 75.4 168.8 Up 09:09:16 - 09:26:32 -5464
Gimple 09:17:52 -64.2 Dark Up 76.3 170.0 Up 09:09:14 - 09:26:30 -5556
Greenville 09:17:52 -64.2 Dark Up 76.3 169.7 Up 09:09:14 - 09:26:30 -5556
Quincy 09:17:52 -64.3 Dark Up 76.5 169.6 Up 09:09:14 - 09:26:30 -5578
Portola 09:17:50 -64.1 Dark Up 76.7 171.3 Up 09:09:12 - 09:26:28 -5586
Reno 09:17:48 -63.9 Dark Up 77.0 173.7 Up 09:09:10 - 09:26:26 -5608
Carson City 09:17:48 -64.1 Dark Up 77.4 173.6 Up 09:09:10 - 09:26:26 -5646
Yerington 09:17:45 -63.8 Dark Up 77.6 176.1 Up 09:09:07 - 09:26:23 -5659
Gardnerville 09:17:46 -64.2 Dark Up 77.6 173.6 Up 09:09:08 - 09:26:24 -5672
Hawthorne 09:17:42 -63.7 Dark Up 78.1 178.2 Up 09:09:04 - 09:26:20 -5703
Lee Vining 09:17:44 -64.4 Dark Up 78.6 175.9 Up 09:09:06 - 09:26:22 -5770
Bishop 09:17:41 -64.2 Dark Up 79.3 179.1 Up 09:09:03 - 09:26:19 -5825
Beatty 09:17:35 -63.3 Dark Up 79.7 187.1 Up 09:08:57 - 09:26:13 -5853
Patrick 09:17:23 -61.8 Dark Up 80.5 203.7 Up 09:08:45 - 09:26:01 -5970
Laughlin/Bullhead City 09:17:26 -62.4 Dark Up 80.9 200.6 Up 09:08:48 - 09:26:04 -6008
Lake Havasu City 09:17:24 -62.5 Dark Up 81.5 203.7 Up 09:08:46 - 09:26:02 -6077
George/Scottsdale 09:17:14 -60.8 Dark Up 81.1 218.9 Up 09:08:36 - 09:25:52 -6119
Wildwood 09:17:40 -65.9 Dark Up 82.5 177.2 Up 09:09:02 - 09:26:18 -6183
Idyllwild 09:17:32 -64.6 Dark Up 82.8 190.4 Up 09:08:54 - 09:26:10 -6195
Calipatria 09:17:27 -63.9 Dark Up 83.1 199.9 Up 09:08:49 - 09:26:05 -6244
Yuma 09:17:24 -63.3 Dark Up 83.2 207.5 Up 09:08:46 - 09:26:02 -6277

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 145451, (2028/11/30 09:18UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 19.34  44
Alnath         05:26:17.6 +28:36:23  1.6  8.57  33
PPM 095226     06:01:00.4 +27:34:21  6.0  1.15  41
PPM 095307     06:03:33.9 +26:31:45  7.3  0.14  42
PPM 095312     06:03:46.2 +26:44:18 10.2  0.11  42
145451         06:03:58.3 +26:38:03 16.8        42
Positions are for J2000

Event circumstances last updated at 2024/04/24 02:56:03 UT

Marc W. Buie, Southwest Research Institute

RECON