RECON: TNO occultation with 523734

Event between (523734) 14QV441 and star GA0820:00331534 with event index number of 1378688

Geocentric closest approach at 2024/12/26 06:41:36 UTC

J2000 position of star is 04:05:12.2 -06:57:12
Equinox of date position of star is 04:06:10.7 -06:54:01
Stellar brightness G=15.4, use SENSEUP=128
Star is 146 degrees from the moon. Moon is 21% illuminated.
TNO apparent brightness V=21.7

[RECON map]
TNO is 19.4 AU from the Sun and 18.7 AU from the Earth.
The TNO is moving 18.0 km/sec on the sky relative to the star, or, 4.8 arcsec/hr.
The 1-sigma error in the time of the event is 376 seconds.
The 1-sigma cross-track error in the shadow position is 2584 km.
The sky-plane scale is 13563.8 km/arcsec.

The TNO has an absolute magnitude Hv=8.7
Diameter=109.7 km assuming a 5% albedo -- 6.1 sec chord
Diameter=44.8 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 523734, (2024/12/26 06:42UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:15:44.4 -08:10:29  0.1 17.23 132
67Bet Eri      05:09:04.8 -05:03:21  2.8 15.68 135
38Omi1Eri      04:13:05.2 -06:46:27  4.0  1.66 145
PPM 186477     04:04:34.0 -06:50:48  8.0  0.46 146
PPM 186515     04:06:19.2 -06:52:08  9.5  0.03 146
523734         04:06:25.5 -06:53:13 15.4       146
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 2.4 sigma about the mid-time.
The median site spacing is 17.1 km RECON observability=1.0 and success probability=11.4%
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 06:41:45 -59.3 Dark Down 31.3 197.6 Up 06:26:45 - 06:56:45 1841
Kelowna 06:41:45 -59.5 Dark Down 31.7 197.5 Up 06:26:45 - 06:56:45 1817
Summerland 06:41:45 -59.7 Dark Down 32.0 197.3 Up 06:26:45 - 06:56:45 1800
Penticton 06:41:45 -59.8 Dark Down 32.0 197.5 Up 06:26:45 - 06:56:45 1798
Oliver 06:41:44 -60.0 Dark Down 32.4 197.5 Up 06:26:44 - 06:56:44 1778
Anarchist Mountain Observatory 06:41:43 -60.2 Dark Down 32.5 197.8 Up 06:26:43 - 06:56:43 1772
Tonasket 06:41:42 -60.5 Dark Down 32.8 197.7 Up 06:26:42 - 06:56:42 1753
Okanogan 06:41:43 -60.7 Dark Down 33.2 197.6 Up 06:26:43 - 06:56:43 1732
Brewster 06:41:43 -60.8 Dark Down 33.5 197.5 Up 06:26:43 - 06:56:43 1713
Manson/Chelan 06:41:44 -60.8 Dark Down 33.7 197.1 Up 06:26:44 - 06:56:44 1696
Victoria 06:41:58 -58.9 Dark Down 33.7 193.2 Up 06:26:58 - 06:56:58 1686
Entiat 06:41:44 -60.9 Dark Down 34.0 197.0 Up 06:26:44 - 06:56:44 1682
Wenatchee 06:41:44 -61.1 Dark Down 34.2 197.0 Up 06:26:44 - 06:56:44 1665
Ellensburg 06:41:44 -61.3 Dark Down 34.7 196.8 Up 06:26:44 - 06:56:44 1638
Pasco 06:41:37 -62.5 Dark Down 35.1 198.6 Up 06:26:37 - 06:56:37 1613
Yakima 06:41:43 -61.6 Dark Down 35.1 196.8 Up 06:26:43 - 06:56:43 1613
Toppenish/White Swan 06:41:42 -61.8 Dark Down 35.2 197.1 Up 06:26:42 - 06:56:42 1602
PNWRO 06:41:35 -62.8 Dark Down 35.3 198.9 Up 06:26:35 - 06:56:35 1601
Goldendale 06:41:43 -62.0 Dark Down 35.8 196.7 Up 06:26:43 - 06:56:43 1562
The Dalles 06:41:44 -62.0 Dark Down 36.1 196.3 Up 06:26:44 - 06:56:44 1543
Maupin 06:41:43 -62.4 Dark Down 36.5 196.5 Up 06:26:43 - 06:56:43 1518
Redmond 06:41:42 -63.0 Dark Down 37.4 196.6 Up 06:26:42 - 06:56:42 1460
Sisters 06:41:43 -62.7 Dark Down 37.5 196.1 Up 06:26:43 - 06:56:43 1455
Bend 06:41:42 -63.0 Dark Down 37.6 196.5 Up 06:26:42 - 06:56:42 1444
Oregon Observatory 06:41:42 -63.1 Dark Down 37.8 196.3 Up 06:26:42 - 06:56:42 1431
La Pine/Gilchrist 06:41:42 -63.2 Dark Down 38.0 196.3 Up 06:26:42 - 06:56:42 1416
Niwot 06:40:26 -72.7 Dark Down 35.9 216.3 Up 06:25:26 - 06:55:26 1406
SwRI 06:40:26 -72.7 Dark Down 36.0 216.3 Up 06:25:26 - 06:55:26 1398
North Lake 06:41:38 -63.8 Dark Down 38.3 197.1 Up 06:26:38 - 06:56:38 1397
Paisley 06:41:36 -64.4 Dark Down 38.8 197.7 Up 06:26:36 - 06:56:36 1366
Lakeview 06:41:34 -64.8 Dark Down 39.2 198.1 Up 06:26:34 - 06:56:34 1335
Klamath Falls 06:41:41 -64.0 Dark Down 39.5 196.3 Up 06:26:41 - 06:56:41 1315
Cedarville 06:41:32 -65.3 Dark Down 39.8 198.4 Up 06:26:32 - 06:56:32 1294
Fall River/Burney 06:41:37 -65.0 Dark Down 40.5 197.0 Up 06:26:37 - 06:56:37 1241
Susanville 06:41:32 -65.8 Dark Down 41.0 198.1 Up 06:26:32 - 06:56:32 1209
Gimple 06:41:32 -65.8 Dark Down 41.3 197.9 Up 06:26:32 - 06:56:32 1186
Greenville 06:41:33 -65.8 Dark Down 41.3 197.8 Up 06:26:33 - 06:56:33 1185
Quincy 06:41:33 -65.9 Dark Down 41.5 197.9 Up 06:26:33 - 06:56:33 1170
Portola 06:41:30 -66.3 Dark Down 41.5 198.5 Up 06:26:30 - 06:56:30 1169
Reno 06:41:27 -66.8 Dark Down 41.6 199.4 Up 06:26:27 - 06:56:27 1161
Carson City 06:41:26 -67.0 Dark Down 41.9 199.5 Up 06:26:26 - 06:56:26 1136
Yerington 06:41:23 -67.5 Dark Down 42.0 200.4 Up 06:26:23 - 06:56:23 1132
Gardnerville 06:41:26 -67.2 Dark Down 42.2 199.7 Up 06:26:26 - 06:56:26 1119
Hawthorne 06:41:20 -68.1 Dark Down 42.2 201.2 Up 06:26:20 - 06:56:20 1107
Tonopah 06:41:12 -69.3 Dark Down 42.3 203.2 Up 06:26:12 - 06:56:12 1096
Lee Vining 06:41:21 -68.2 Dark Down 42.9 200.8 Up 06:26:21 - 06:56:21 1059
Bishop 06:41:16 -69.0 Dark Down 43.3 201.9 Up 06:26:16 - 06:56:16 1026
Beatty 06:41:08 -70.3 Dark Down 43.2 204.1 Up 06:26:08 - 06:56:08 1018
Indian Springs 06:41:02 -71.1 Dark Down 43.1 205.6 Up 06:26:02 - 06:56:02 1010
Henderson 06:40:58 -71.9 Dark Down 43.4 206.7 Up 06:25:58 - 06:55:58 981
Patrick 06:40:51 -73.0 Dark Down 43.5 208.4 Up 06:25:51 - 06:55:51 951
DCO 06:40:47 -73.6 Dark Down 43.5 209.4 Up 06:25:47 - 06:55:47 939
Searchlight/Boulder City 06:40:56 -72.3 Dark Down 43.9 207.0 Up 06:25:56 - 06:55:56 939
Kingman/Dolan Springs 06:40:52 -73.0 Dark Down 43.8 208.2 Up 06:25:52 - 06:55:52 931
Laughlin/Bullhead City 06:40:54 -72.7 Dark Down 44.0 207.6 Up 06:25:54 - 06:55:54 921
Mohave Valley 06:40:54 -72.9 Dark Down 44.2 207.7 Up 06:25:54 - 06:55:54 900
Lake Havasu City 06:40:52 -73.3 Dark Down 44.5 208.2 Up 06:25:52 - 06:55:52 874
George/Scottsdale 06:40:39 -75.3 Dark Down 44.2 211.6 Up 06:25:39 - 06:55:39 852
Parker 06:40:51 -73.5 Dark Down 44.8 208.4 Up 06:25:51 - 06:55:51 847
CPSLO 06:41:23 -68.6 Dark Down 45.8 199.6 Up 06:26:23 - 06:56:23 832
Blythe 06:40:51 -73.6 Dark Down 45.4 208.3 Up 06:25:51 - 06:55:51 801
Idyllwild 06:41:02 -72.1 Dark Down 46.1 205.5 Up 06:26:02 - 06:56:02 777
Wildwood 06:41:11 -70.6 Dark Down 46.4 202.8 Up 06:26:11 - 06:56:11 773
Calipatria 06:40:55 -73.3 Dark Down 46.2 207.3 Up 06:25:55 - 06:55:55 748
Yuma 06:40:49 -74.1 Dark Down 46.2 208.7 Up 06:25:49 - 06:55:49 728

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 523734, (2024/12/26 06:42UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:14:32.3 -08:12:06  0.1 17.23 132
67Bet Eri      05:07:50.8 -05:05:13  2.8 15.68 135
38Omi1Eri      04:11:51.9 -06:50:14  4.0  1.66 145
PPM 186477     04:03:20.6 -06:54:51  8.0  0.46 146
PPM 186515     04:05:05.9 -06:56:07  9.5  0.03 146
523734         04:05:12.2 -06:57:12 15.4       146
Positions are for J2000

Event circumstances last updated at 2019/12/17 20:08:31 UT

Marc W. Buie, Southwest Research Institute

RECON