RECON: TNO occultation with 145451

Event between (145451) 05RM43 and star GA1160:01822957 with event index number of 2677850

Geocentric closest approach at 2028/12/26 10:03:15 UTC

J2000 position of star is 06:01:32.6 +26:42:04
Equinox of date position of star is 06:03:03.7 +26:41:59
Stellar brightness G=16.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 58 degrees from the moon. Moon is 73% illuminated.
Apparent brightness V=20.6

[RECON map]
Object is 40.2 AU from the Sun and 39.2 AU from the Earth.
Apparent velocity is 25.4 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 88 seconds.
The 1-sigma cross-track error in the shadow position is 1781 km.
The sky-plane scale is 28464.4 km/arcsec.

The object has an absolute magnitude Hv=4.6
Diameter=721.1 km assuming a 5% albedo -- 28.5 sec chord
Diameter=294.4 km assuming a 30% albedo -- 11.6 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 145451, (2028/12/26 10:03UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:44.5 +07:24:36  0.4 19.35  59
Alnath         05:28:07.6 +28:37:46  1.6  8.03  50
PPM 095226     06:02:49.8 +27:34:16  6.0  0.88  57
PPM 095307     06:05:22.4 +26:31:33  7.3  0.48  58
PPM 095225     06:02:34.7 +26:42:07  9.6  0.17  57
PPM 095239     06:03:10.6 +26:44:20 10.7  0.06  58
145451         06:03:21.2 +26:41:57 16.3        58
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 22.2 km RECON observability=1.0 and success probability=0.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:01:33 -45.8 Dark Up 45.3 255.0 Up 09:53:42 - 10:09:23 -3672
Kamloops 10:01:57 -54.2 Dark Up 54.1 241.4 Up 09:54:07 - 10:09:48 -4167
Kelowna 10:01:53 -54.2 Dark Up 54.0 243.5 Up 09:54:03 - 10:09:44 -4218
Peachland 10:01:53 -54.4 Dark Up 54.2 243.3 Up 09:54:03 - 10:09:44 -4235
Summerland 10:01:53 -54.5 Dark Up 54.2 243.5 Up 09:54:02 - 10:09:43 -4246
Penticton 10:01:53 -54.5 Dark Up 54.2 243.8 Up 09:54:02 - 10:09:43 -4249
Oliver 10:01:52 -54.7 Dark Up 54.4 244.2 Up 09:54:01 - 10:09:42 -4281
Anarchist Mountain Observatory 10:01:51 -54.7 Dark Up 54.3 244.6 Up 09:54:01 - 10:09:42 -4291
Okanogan 10:01:49 -55.2 Dark Up 54.7 245.2 Up 09:53:59 - 10:09:40 -4356
Brewster 10:01:50 -55.4 Dark Up 55.0 245.3 Up 09:53:59 - 10:09:40 -4386
Manson/Chelan 10:01:51 -55.7 Dark Up 55.3 245.2 Up 09:54:00 - 10:09:41 -4414
Victoria 10:02:00 -57.1 Dark Up 56.9 240.5 Up 09:54:09 - 10:09:50 -4436
Wenatchee 10:01:50 -56.1 Dark Up 55.6 245.6 Up 09:53:59 - 10:09:40 -4462
Ellensburg 10:01:49 -56.5 Dark Up 55.9 245.9 Up 09:53:59 - 10:09:40 -4506
Yakima 10:01:49 -56.7 Dark Up 56.1 246.4 Up 09:53:58 - 10:09:39 -4544
PNWRO 10:01:43 -56.1 Dark Up 55.2 249.0 Up 09:53:53 - 10:09:34 -4555
Toppenish/White Swan 10:01:47 -56.7 Dark Up 56.1 246.9 Up 09:53:57 - 10:09:38 -4560
The Dalles 10:01:48 -57.6 Dark Up 56.9 247.1 Up 09:53:57 - 10:09:38 -4653
Dunrhomin 10:01:00 -48.8 Dark Down 46.7 267.7 Up 09:53:09 - 10:08:50 -4660
Nikitin 10:00:59 -48.9 Dark Down 46.7 267.9 Up 09:53:08 - 10:08:49 -4678
CU-SBO 10:00:59 -48.9 Dark Down 46.8 267.9 Up 09:53:09 - 10:08:50 -4686
Maupin 10:01:47 -57.8 Dark Up 57.0 247.8 Up 09:53:56 - 10:09:37 -4690
Sisters 10:01:46 -58.6 Dark Up 57.6 248.5 Up 09:53:55 - 10:09:36 -4786
Bend 10:01:45 -58.5 Dark Up 57.5 249.1 Up 09:53:54 - 10:09:35 -4802
Oregon Observatory 10:01:45 -58.7 Dark Up 57.7 249.3 Up 09:53:55 - 10:09:36 -4822
Chiloquin 10:01:44 -59.7 Dark Up 58.4 250.8 Up 09:53:53 - 10:09:34 -4960
Klamath Falls 10:01:42 -59.8 Dark Up 58.5 251.4 Up 09:53:52 - 10:09:33 -4991
Cedarville 10:01:37 -59.1 Dark Up 57.6 254.1 Up 09:53:46 - 10:09:27 -5014
Fall River/Burney 10:01:39 -60.1 Dark Up 58.6 253.6 Up 09:53:49 - 10:09:30 -5095
Gimple 10:01:36 -60.1 Dark Up 58.4 255.5 Up 09:53:46 - 10:09:27 -5169
Greenville 10:01:36 -60.2 Dark Up 58.5 255.5 Up 09:53:45 - 10:09:26 -5171
Portola 10:01:35 -60.0 Dark Up 58.2 256.4 Up 09:53:44 - 10:09:25 -5189
Quincy 10:01:36 -60.3 Dark Up 58.5 255.8 Up 09:53:46 - 10:09:27 -5191
Reno 10:01:33 -59.7 Dark Up 57.8 257.4 Up 09:53:42 - 10:09:23 -5197
Carson City 10:01:31 -59.8 Dark Up 57.9 258.0 Up 09:53:40 - 10:09:21 -5231
Yerington 10:01:29 -59.4 Dark Up 57.4 258.9 Up 09:53:39 - 10:09:20 -5231
Gardnerville 10:01:31 -59.9 Dark Up 57.9 258.4 Up 09:53:40 - 10:09:21 -5254
Hawthorne 10:01:27 -59.2 Dark Up 57.1 260.0 Up 09:53:36 - 10:09:17 -5261
Lee Vining 10:01:27 -59.8 Dark Up 57.6 260.5 Up 09:53:36 - 10:09:17 -5331
Beatty 10:01:19 -58.3 Dark Up 55.9 263.9 Up 09:53:29 - 10:09:10 -5363
Bishop 10:01:24 -59.4 Dark Up 57.1 262.0 Up 09:53:34 - 10:09:15 -5368
Patrick 10:01:09 -56.4 Dark Down 53.7 267.9 Up 09:53:18 - 10:08:59 -5414
Laughlin/Bullhead City 10:01:10 -57.0 Dark Down 54.3 267.8 Up 09:53:20 - 10:09:01 -5462
George/Scottsdale 10:01:00 -55.1 Dark Down 52.1 271.3 Up 09:53:10 - 10:08:51 -5512
Lake Havasu City 10:01:08 -57.0 Dark Down 54.1 268.9 Up 09:53:17 - 10:08:58 -5520
Idyllwild 10:01:13 -59.0 Dark Up 56.1 268.6 Up 09:53:22 - 10:09:03 -5675
Calipatria 10:01:08 -58.2 Dark Up 55.1 270.1 Up 09:53:18 - 10:08:59 -5696
Wildwood 10:01:19 -60.5 Dark Up 57.6 266.9 Up 09:53:28 - 10:09:09 -5700
Yuma 10:01:05 -57.5 Dark Down 54.4 271.2 Up 09:53:15 - 10:08:56 -5709

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, (2028/12/26 10:03UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 19.35  59
Alnath         05:26:17.6 +28:36:23  1.6  8.03  50
PPM 095226     06:01:00.4 +27:34:21  6.0  0.88  57
PPM 095307     06:03:33.9 +26:31:45  7.3  0.48  58
PPM 095225     06:00:46.1 +26:42:11  9.6  0.17  57
PPM 095239     06:01:22.0 +26:44:25 10.7  0.06  58
145451         06:01:32.6 +26:42:04 16.3        58
Positions are for J2000

Event circumstances last updated at 2024/04/24 02:56:21 UT

Marc W. Buie, Southwest Research Institute

RECON