RECON: TNO occultation with 120347

Event between (120347) Salacia and star GA1160:16051782 with event index number of 1380610

Geocentric closest approach at 2024/10/19 09:52:13 UTC

J2000 position of star is 23:52:50.3 +26:00:40
Equinox of date position of star is 23:53:50.9 +26:07:17
Stellar brightness G=15.5, use SENSEUP=128
Star is 47 degrees from the moon. Moon is 94% illuminated.
TNO apparent brightness V=20.6

[RECON map]
TNO is 45.3 AU from the Sun and 44.4 AU from the Earth.
The TNO is moving 24.5 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 252 seconds.
The 1-sigma cross-track error in the shadow position is 5193 km.
The sky-plane scale is 32190.0 km/arcsec.

The TNO has an absolute magnitude Hv=4.0
Diameter=955.0 km assuming a 5% albedo -- 39.0 sec chord
Diameter=389.9 km assuming a 30% albedo -- 15.9 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 120347, (2024/10/19 09:52UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:16.7 +45:22:12  1.3 42.61  81
Scheat         23:04:58.8 +28:13:03  2.4 11.11  58
84Psi Peg      23:59:01.6 +25:16:45  4.7  1.41  46
PPM 115917     23:54:23.3 +26:08:11  8.1  0.07  47
120347         23:54:06.2 +26:08:57 15.5        47
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 3.6 sigma about the mid-time.
The median site spacing is 27.2 km RECON observability=1.0 and success probability=10.4%
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 09:48:58 -42.2 Dark Up 39.9 263.7 Up 09:33:58 - 10:03:58 1949
Kelowna 09:48:58 -42.6 Dark Up 40.0 263.8 Up 09:33:58 - 10:03:58 1907
Summerland 09:48:58 -42.8 Dark Up 40.2 263.9 Up 09:33:58 - 10:03:58 1878
Penticton 09:48:58 -42.8 Dark Up 40.1 264.0 Up 09:33:58 - 10:03:58 1870
Oliver 09:48:58 -43.1 Dark Up 40.1 264.3 Up 09:33:58 - 10:03:58 1831
Anarchist Mountain Observatory 09:48:57 -43.1 Dark Up 40.0 264.6 Up 09:33:57 - 10:03:57 1812
Tonasket 09:48:57 -43.4 Dark Up 40.1 264.8 Up 09:33:57 - 10:03:57 1778
Victoria 09:49:05 -45.3 Dark Up 42.7 261.8 Up 09:34:05 - 10:04:05 1765
Okanogan 09:48:57 -43.7 Dark Up 40.2 265.0 Up 09:33:57 - 10:03:57 1741
Brewster 09:48:58 -44.0 Dark Up 40.4 265.1 Up 09:33:58 - 10:03:58 1711
Manson/Chelan 09:48:58 -44.3 Dark Up 40.6 265.0 Up 09:33:58 - 10:03:58 1688
Entiat 09:48:58 -44.5 Dark Up 40.7 265.1 Up 09:33:58 - 10:03:58 1664
Wenatchee 09:48:59 -44.7 Dark Up 40.8 265.2 Up 09:33:59 - 10:03:59 1636
Ellensburg 09:48:59 -45.1 Dark Up 41.0 265.4 Up 09:33:59 - 10:03:59 1590
Yakima 09:48:59 -45.4 Dark Up 41.0 265.8 Up 09:33:59 - 10:03:59 1545
Toppenish/White Swan 09:48:58 -45.5 Dark Up 40.9 266.1 Up 09:33:58 - 10:03:58 1521
Pasco 09:48:55 -44.9 Dark Up 40.1 267.1 Up 09:33:55 - 10:03:55 1507
PNWRO 09:48:55 -45.0 Dark Up 39.9 267.5 Up 09:33:55 - 10:03:55 1480
Goldendale 09:48:59 -46.1 Dark Up 41.3 266.2 Up 09:33:59 - 10:03:59 1460
The Dalles 09:49:00 -46.4 Dark Up 41.5 266.2 Up 09:34:00 - 10:04:00 1436
Maupin 09:49:00 -46.6 Dark Up 41.5 266.6 Up 09:34:00 - 10:04:00 1389
Sisters 09:49:01 -47.5 Dark Up 41.9 267.0 Up 09:34:01 - 10:04:01 1292
Redmond 09:49:00 -47.3 Dark Up 41.6 267.3 Up 09:34:00 - 10:04:00 1289
Bend 09:49:00 -47.5 Dark Up 41.7 267.4 Up 09:34:00 - 10:04:00 1265
Oregon Observatory 09:49:00 -47.7 Dark Up 41.8 267.5 Up 09:34:00 - 10:04:00 1246
La Pine/Gilchrist 09:49:00 -47.9 Dark Up 41.9 267.6 Up 09:34:00 - 10:04:00 1223
North Lake 09:48:59 -47.9 Dark Up 41.4 268.4 Up 09:33:59 - 10:03:59 1174
Paisley 09:48:58 -48.0 Dark Up 41.2 269.2 Up 09:33:58 - 10:03:58 1112
Klamath Falls 09:49:01 -49.0 Dark Up 42.1 268.7 Up 09:34:01 - 10:04:01 1062
Lakeview 09:48:57 -48.3 Dark Up 41.1 269.7 Up 09:33:57 - 10:03:57 1056
Cedarville 09:48:57 -48.6 Dark Up 40.9 270.4 Up 09:33:57 - 10:03:57 983
Fall River/Burney 09:49:00 -49.6 Dark Up 41.8 270.1 Up 09:34:00 - 10:04:00 931
Niwot 09:48:28 -39.8 Dark Up 29.6 280.4 Low 09:33:28 - 10:03:28 927
SwRI 09:48:28 -39.9 Dark Up 29.6 280.4 Low 09:33:28 - 10:03:28 914
Susanville 09:48:59 -49.6 Dark Up 41.3 271.1 Up 09:33:59 - 10:03:59 860
Greenville 09:49:00 -49.9 Dark Up 41.5 271.2 Up 09:34:00 - 10:04:00 829
Gimple 09:48:59 -49.9 Dark Up 41.4 271.2 Up 09:33:59 - 10:03:59 829
Quincy 09:49:00 -50.1 Dark Up 41.5 271.3 Up 09:34:00 - 10:04:00 807
Portola 09:48:58 -49.9 Dark Up 41.1 271.7 Up 09:33:58 - 10:03:58 792
Reno 09:48:57 -49.7 Dark Up 40.6 272.4 Up 09:33:57 - 10:03:57 762
Carson City 09:48:57 -49.9 Dark Up 40.6 272.7 Up 09:33:57 - 10:03:57 723
Yerington 09:48:56 -49.6 Dark Up 40.1 273.2 Up 09:33:56 - 10:03:56 701
Gardnerville 09:48:57 -50.0 Dark Up 40.5 272.9 Up 09:33:57 - 10:03:57 696
Hawthorne 09:48:54 -49.5 Dark Up 39.6 273.9 Up 09:33:54 - 10:03:54 650
Tonopah 09:48:51 -48.9 Dark Up 38.5 275.1 Up 09:33:51 - 10:03:51 601
Lee Vining 09:48:56 -50.2 Dark Up 40.0 274.1 Up 09:33:56 - 10:03:56 587
Bishop 09:48:54 -50.0 Dark Up 39.4 275.0 Up 09:33:54 - 10:03:54 522
Beatty 09:48:51 -49.2 Dark Up 38.0 276.3 Up 09:33:51 - 10:03:51 474
Indian Springs 09:48:48 -48.7 Dark Up 37.1 277.1 Up 09:33:48 - 10:03:48 442
Henderson 09:48:47 -48.4 Dark Up 36.5 277.8 Up 09:33:47 - 10:03:47 386
Searchlight/Boulder City 09:48:47 -48.7 Dark Up 36.4 278.3 Up 09:33:47 - 10:03:47 323
Patrick 09:48:44 -47.9 Dark Up 35.5 278.8 Up 09:33:44 - 10:03:44 323
Kingman/Dolan Springs 09:48:45 -48.2 Dark Up 35.7 278.9 Up 09:33:45 - 10:03:45 297
CPSLO 09:49:00 -52.7 Dark Up 41.0 275.6 Up 09:34:00 - 10:04:00 294
DCO 09:48:43 -47.6 Dark Up 34.9 279.4 Up 09:33:43 - 10:03:43 294
Laughlin/Bullhead City 09:48:46 -48.6 Dark Up 36.1 278.7 Up 09:33:46 - 10:03:46 292
Mohave Valley 09:48:46 -48.7 Dark Up 36.0 278.9 Up 09:33:46 - 10:03:46 262
Lake Havasu City 09:48:46 -48.7 Dark Up 35.8 279.3 Up 09:33:46 - 10:03:46 219
Parker 09:48:46 -48.8 Dark Up 35.7 279.5 Up 09:33:46 - 10:03:46 181
Wildwood 09:48:56 -52.0 Dark Up 39.2 277.6 Up 09:33:56 - 10:03:56 161
George/Scottsdale 09:48:41 -47.2 Dark Up 33.6 280.9 Up 09:33:41 - 10:03:41 151
Idyllwild 09:48:51 -50.8 Dark Up 37.6 278.7 Up 09:33:51 - 10:03:51 125
Blythe 09:48:47 -49.3 Dark Up 35.8 279.8 Up 09:33:47 - 10:03:47 122
Calipatria 09:48:49 -50.2 Dark Up 36.5 279.7 Up 09:33:49 - 10:03:49 63
Yuma 09:48:47 -49.7 Dark Up 35.7 280.4 Up 09:33:47 - 10:03:47 21

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 120347, (2024/10/19 09:52UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 42.61  81
Scheat         23:03:46.7 +28:05:01  2.4 11.11  58
84Psi Peg      23:57:45.5 +25:08:28  4.7  1.41  46
PPM 115917     23:53:07.5 +25:59:54  8.1  0.07  47
120347         23:52:50.3 +26:00:40 15.5        47
Positions are for J2000

Event circumstances last updated at 2019/10/26 23:10:29 UT

Marc W. Buie, Southwest Research Institute

RECON