RECON: TNO occultation with 13RU128

Event between 13RU128 and star GA0880:19175175 with event index number of 2463852

Geocentric closest approach at 2024/10/19 06:58:28 UTC

J2000 position of star is 22:57:08.7 -01:23:54
Equinox of date position of star is 22:58:22.1 -01:16:14
Stellar brightness G=14.1, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 67 degrees from the moon. Moon is 95% illuminated.
Apparent brightness V=23.7

[RECON map]
Object is 41.1 AU from the Sun and 40.4 AU from the Earth.
Apparent velocity is 17.9 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 134 seconds.
The 1-sigma cross-track error in the shadow position is 1822 km.
The sky-plane scale is 29273.9 km/arcsec.

The object has an absolute magnitude Hv=7.5
Diameter=187.9 km assuming a 5% albedo -- 10.5 sec chord
Diameter=76.7 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 13RU128, (2024/10/19 06:56UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:59:00.9 -29:29:25  1.2 28.23  80
Markab         23:05:59.9 +15:20:21  2.5 16.71  59
PPM 206984     22:59:32.2 -02:15:44  6.2  1.04  67
PPM 181551     22:59:40.3 -01:16:38  6.8  0.31  66
PPM 181548     22:58:32.0 -01:17:04 10.0  0.03  67
13RU128        22:58:25.2 -01:15:55 14.1        66
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 28.4 km RECON observability=1.0 and success probability=37.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 06:54:22 -48.1 Dark Up 33.0 213.0 Up 06:42:42 - 07:06:02 -45
Victoria 06:54:33 -49.4 Dark Up 35.9 210.3 Up 06:42:53 - 07:06:13 -99
Peachland 06:54:21 -49.1 Dark Up 33.6 214.0 Up 06:42:41 - 07:06:01 -140
Kelowna 06:54:20 -49.1 Dark Up 33.4 214.3 Up 06:42:40 - 07:06:00 -142
Summerland 06:54:21 -49.3 Dark Up 33.7 214.2 Up 06:42:41 - 07:06:01 -156
Penticton 06:54:21 -49.4 Dark Up 33.7 214.3 Up 06:42:41 - 07:06:01 -165
Oliver 06:54:20 -49.7 Dark Up 34.0 214.4 Up 06:42:40 - 07:06:00 -194
Anarchist Mountain Observatory 06:54:20 -49.9 Dark Up 34.0 214.7 Up 06:42:40 - 07:06:00 -214
Okanogan 06:54:21 -50.5 Dark Up 34.6 214.7 Up 06:42:41 - 07:06:01 -259
Brewster 06:54:22 -50.7 Dark Up 34.9 214.6 Up 06:42:42 - 07:06:02 -273
Manson/Chelan 06:54:23 -50.8 Dark Up 35.2 214.3 Up 06:42:43 - 07:06:03 -276
Wenatchee 06:54:25 -51.2 Dark Up 35.7 214.3 Up 06:42:45 - 07:06:05 -308
Ellensburg 06:54:25 -51.5 Dark Up 36.1 214.2 Up 06:42:45 - 07:06:05 -333
Yakima 06:54:25 -51.9 Dark Up 36.5 214.4 Up 06:42:45 - 07:06:05 -366
Toppenish/White Swan 06:54:25 -52.1 Dark Up 36.6 214.6 Up 06:42:45 - 07:06:05 -391
Sleaford 06:53:45 -48.1 Dark Up 26.2 227.5 Low 06:42:05 - 07:05:25 -410
The Dalles 06:54:28 -52.7 Dark Up 37.5 214.1 Up 06:42:48 - 07:06:08 -423
Maupin 06:54:28 -53.1 Dark Up 37.8 214.4 Up 06:42:48 - 07:06:08 -462
PNWRO 06:54:20 -52.8 Dark Up 36.3 216.5 Up 06:42:40 - 07:06:00 -480
Sisters 06:54:31 -53.8 Dark Up 38.8 214.2 Up 06:42:51 - 07:06:11 -515
Bend 06:54:29 -54.0 Dark Up 38.8 214.6 Up 06:42:49 - 07:06:09 -545
Oregon Observatory 06:54:30 -54.2 Dark Up 39.0 214.5 Up 06:42:50 - 07:06:10 -554
Chiloquin 06:54:33 -55.2 Dark Up 40.3 214.7 Up 06:42:53 - 07:06:13 -647
Klamath Falls 06:54:33 -55.6 Dark Up 40.5 214.9 Up 06:42:53 - 07:06:13 -680
Fall River/Burney 06:54:33 -56.8 Dark Up 41.3 216.0 Up 06:42:53 - 07:06:13 -797
Cedarville 06:54:28 -56.7 Dark Up 40.4 217.2 Up 06:42:48 - 07:06:08 -808
Greenville 06:54:32 -57.7 Dark Up 41.9 217.0 Up 06:42:52 - 07:06:12 -895
Gimple 06:54:32 -57.8 Dark Up 41.8 217.1 Up 06:42:52 - 07:06:12 -899
Quincy 06:54:33 -57.9 Dark Up 42.0 217.1 Up 06:42:53 - 07:06:13 -913
Portola 06:54:31 -58.2 Dark Up 41.9 217.8 Up 06:42:51 - 07:06:11 -945
Reno 06:54:29 -58.6 Dark Up 41.8 218.7 Up 06:42:49 - 07:06:09 -996
Carson City 06:54:31 -59.0 Dark Up 42.1 218.9 Up 06:42:51 - 07:06:11 -1029
Gardnerville 06:54:31 -59.2 Dark Up 42.2 219.1 Up 06:42:51 - 07:06:11 -1053
Yerington 06:54:27 -59.3 Dark Up 41.9 219.7 Up 06:42:47 - 07:06:07 -1074
Hawthorne 06:54:26 -59.9 Dark Up 42.0 220.6 Up 06:42:46 - 07:06:06 -1139
Lee Vining 06:54:28 -60.3 Dark Up 42.7 220.4 Up 06:42:48 - 07:06:08 -1167
Bishop 06:54:27 -61.1 Dark Up 42.8 221.6 Up 06:42:47 - 07:06:07 -1254
Beatty 06:54:22 -62.0 Dark Up 42.2 223.7 Up 06:42:42 - 07:06:02 -1369
Dunrhomin 06:53:42 -59.9 Dark Up 33.3 233.5 Up 06:42:02 - 07:05:22 -1527
Wildwood 06:54:32 -64.0 Dark Up 45.3 223.5 Up 06:42:52 - 07:06:12 -1542
Nikitin 06:53:43 -60.1 Dark Up 33.4 233.6 Up 06:42:03 - 07:05:23 -1544
CU-SBO 06:53:43 -60.1 Dark Up 33.5 233.5 Up 06:42:03 - 07:05:23 -1547
Laughlin/Bullhead City 06:54:16 -64.2 Dark Up 42.2 227.2 Up 06:42:36 - 07:05:56 -1626
Patrick 06:54:13 -64.1 Dark Up 41.6 227.8 Up 06:42:33 - 07:05:53 -1634
Idyllwild 06:54:26 -64.9 Dark Up 44.4 225.9 Up 06:42:46 - 07:06:06 -1662
Lake Havasu City 06:54:16 -64.9 Dark Up 42.5 228.0 Up 06:42:36 - 07:05:56 -1700
Calipatria 06:54:22 -65.9 Dark Up 44.1 227.6 Up 06:42:42 - 07:06:02 -1774
Yuma 06:54:20 -66.5 Dark Up 43.9 228.9 Up 06:42:40 - 07:06:00 -1855
George/Scottsdale 06:54:09 -66.1 Dark Up 41.5 231.0 Up 06:42:29 - 07:05:49 -1882

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 13RU128, (2024/10/19 06:56UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 28.23  80
Markab         23:04:45.8 +15:12:18  2.5 16.71  59
PPM 206984     22:58:15.5 -02:23:44  6.2  1.04  67
PPM 181551     22:58:23.8 -01:24:37  6.8  0.31  66
PPM 181548     22:57:15.6 -01:25:03 10.0  0.03  67
13RU128        22:57:08.7 -01:23:54 14.1        67
Positions are for J2000

Event circumstances last updated at 2023/10/27 01:53:33 UT

Marc W. Buie, Southwest Research Institute

RECON