RECON: TNO occultation with 54598

Event between (54598) Bienor and star GA1320:03593502 with event index number of 1210440

Geocentric closest approach at 2022/11/18 06:56:55 UTC

J2000 position of star is 06:17:08.7 +43:46:37
Equinox of date position of star is 06:18:36.4 +43:46:05
Stellar brightness G=15.4, use SENSEUP=128
Star is 72 degrees from the moon. Moon is 34% illuminated.
TNO apparent brightness V=21.5

[RECON map]
TNO is 13.8 AU from the Sun and 13.0 AU from the Earth.
The TNO is moving 16.3 km/sec on the sky relative to the star, or, 6.2 arcsec/hr.
The 1-sigma error in the time of the event is 68 seconds.
The 1-sigma cross-track error in the shadow position is 590 km.
The sky-plane scale is 9434.0 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=190.6 km assuming a 5% albedo -- 3.7 sec chord
Diameter=77.8 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 54598, (2022/11/18 06:57UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:42.9 +27:58:09  1.1 23.67  52
34Bet Aur      06:01:12.5 +44:56:50  1.9  3.36  75
38 Aur         06:04:56.9 +42:54:31  6.1  2.66  74
PPM 048880     06:16:20.4 +44:34:33  8.2  0.92  72
PPM 048905     06:18:00.2 +43:39:22  9.3  0.18  72
54598          06:18:48.3 +43:46:01 15.4        71
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 24.3 km RECON observability=1.0 and success probability=57.3%
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 07:00:38 -57.9 Dark Down 55.3 80.5 Up 06:54:30 - 07:06:46 1782
Kelowna 07:00:39 -58.2 Dark Down 55.1 79.9 Up 06:54:31 - 07:06:47 1744
Peachland 07:00:41 -58.3 Dark Down 54.9 79.5 Up 06:54:33 - 07:06:49 1738
Summerland 07:00:41 -58.4 Dark Down 54.9 79.4 Up 06:54:33 - 07:06:49 1721
Penticton 07:00:40 -58.5 Dark Down 55.0 79.4 Up 06:54:32 - 07:06:48 1711
Victoria 07:00:55 -58.5 Dark Down 52.3 75.9 Up 06:54:47 - 07:07:03 1694
Oliver 07:00:41 -58.9 Dark Down 54.9 78.9 Up 06:54:33 - 07:06:49 1674
Anarchist Mountain Observatory 07:00:41 -59.1 Dark Down 55.0 78.7 Up 06:54:33 - 07:06:49 1651
Tonasket 07:00:42 -59.3 Dark Down 54.9 78.3 Up 06:54:34 - 07:06:50 1620
Okanogan 07:00:43 -59.6 Dark Down 54.7 77.7 Up 06:54:35 - 07:06:51 1588
Brewster 07:00:44 -59.8 Dark Down 54.5 77.2 Up 06:54:36 - 07:06:52 1564
Manson/Chelan 07:00:46 -59.9 Dark Down 54.3 76.8 Up 06:54:38 - 07:06:54 1550
Entiat 07:00:46 -60.1 Dark Down 54.2 76.4 Up 06:54:38 - 07:06:54 1528
Wenatchee 07:00:47 -60.3 Dark Down 54.0 76.0 Up 06:54:39 - 07:06:55 1503
Ellensburg 07:00:49 -60.7 Dark Down 53.8 75.4 Up 06:54:41 - 07:06:57 1465
Yakima 07:00:49 -61.0 Dark Down 53.7 74.8 Up 06:54:41 - 07:06:57 1422
Toppenish/White Swan 07:00:49 -61.3 Dark Down 53.7 74.6 Up 06:54:41 - 07:06:57 1395
Pasco 07:00:45 -61.7 Dark Down 54.5 75.1 Up 06:54:37 - 07:06:53 1353
Goldendale 07:00:52 -61.7 Dark Down 53.3 73.7 Up 06:54:44 - 07:07:00 1347
The Dalles 07:00:53 -61.8 Dark Down 53.0 73.3 Up 06:54:45 - 07:07:01 1332
PNWRO 07:00:44 -62.0 Dark Down 54.6 74.8 Up 06:54:36 - 07:06:52 1322
Maupin 07:00:54 -62.2 Dark Down 53.0 72.8 Up 06:54:46 - 07:07:02 1285
Sisters 07:00:57 -62.8 Dark Down 52.4 71.5 Up 06:54:49 - 07:07:05 1205
Redmond 07:00:55 -63.0 Dark Down 52.6 71.6 Up 06:54:47 - 07:07:03 1192
Bend 07:00:56 -63.1 Dark Down 52.5 71.3 Up 06:54:48 - 07:07:04 1173
Oregon Observatory 07:00:57 -63.2 Dark Down 52.3 71.0 Up 06:54:49 - 07:07:05 1158
La Pine/Gilchrist 07:00:58 -63.4 Dark Down 52.2 70.8 Up 06:54:50 - 07:07:06 1138
North Lake 07:00:56 -64.0 Dark Down 52.5 70.4 Up 06:54:48 - 07:07:04 1077
Paisley 07:00:55 -64.6 Dark Down 52.5 69.9 Up 06:54:47 - 07:07:03 1010
Klamath Falls 07:01:01 -64.6 Dark Down 51.5 68.9 Up 06:54:53 - 07:07:09 992
Lakeview 07:00:55 -65.1 Dark Down 52.5 69.3 Up 06:54:47 - 07:07:03 951
Cedarville 07:00:56 -65.7 Dark Down 52.4 68.6 Up 06:54:48 - 07:07:04 877
Fall River/Burney 07:01:01 -65.7 Dark Down 51.4 67.7 Up 06:54:53 - 07:07:09 858
Susanville 07:00:59 -66.6 Dark Down 51.6 67.1 Up 06:54:51 - 07:07:07 772
Greenville 07:01:01 -66.7 Dark Down 51.3 66.8 Up 06:54:53 - 07:07:09 751
Gimple 07:01:00 -66.7 Dark Down 51.4 66.8 Up 06:54:52 - 07:07:08 748
Quincy 07:01:01 -66.9 Dark Down 51.2 66.5 Up 06:54:53 - 07:07:09 729
Portola 07:00:59 -67.2 Dark Down 51.5 66.5 Up 06:54:51 - 07:07:07 703
Reno 07:00:57 -67.6 Dark Down 51.9 66.3 Up 06:54:49 - 07:07:05 658
Carson City 07:00:58 -68.0 Dark Down 51.7 65.9 Up 06:54:50 - 07:07:06 620
Gardnerville 07:00:58 -68.2 Dark Down 51.7 65.7 Up 06:54:50 - 07:07:06 593
Yerington 07:00:55 -68.4 Dark Down 52.1 65.9 Up 06:54:47 - 07:07:03 583
Hawthorne 07:00:53 -69.0 Dark Down 52.3 65.4 Up 06:54:45 - 07:07:01 521
Lee Vining 07:00:56 -69.3 Dark Down 51.7 64.7 Up 06:54:48 - 07:07:04 473
Niwot 06:59:53 -68.9 Dark Down 62.3 70.0 Up 06:53:45 - 07:06:01 453
SwRI 06:59:54 -69.0 Dark Down 62.2 69.8 Up 06:53:46 - 07:06:02 443
Tonopah 07:00:48 -69.8 Dark Down 53.1 65.1 Up 06:54:40 - 07:06:56 437
Bishop 07:00:54 -70.1 Dark Down 52.0 64.1 Up 06:54:46 - 07:07:02 392
Beatty 07:00:47 -71.0 Dark Down 52.9 63.8 Up 06:54:39 - 07:06:55 304
Indian Springs 07:00:43 -71.7 Dark Down 53.5 63.5 Up 06:54:35 - 07:06:51 244
CPSLO 07:01:05 -70.9 Dark Down 49.4 61.6 Up 06:54:57 - 07:07:13 236
Henderson 07:00:40 -72.4 Dark Down 53.8 63.0 Up 06:54:32 - 07:06:48 172
Searchlight/Boulder City 07:00:40 -72.9 Dark Down 53.6 62.3 Up 06:54:32 - 07:06:48 110
Patrick 07:00:36 -73.2 Dark Down 54.3 62.3 Up 06:54:28 - 07:06:44 82
Laughlin/Bullhead City 07:00:39 -73.3 Dark Down 53.7 61.9 Up 06:54:31 - 07:06:47 71
Kingman/Dolan Springs 07:00:37 -73.4 Dark Down 54.0 62.0 Up 06:54:29 - 07:06:45 62
Wildwood 07:00:57 -72.8 Dark Down 50.3 60.5 Up 06:54:49 - 07:07:05 54
Mohave Valley 07:00:39 -73.6 Dark Down 53.5 61.6 Up 06:54:31 - 07:06:47 42
DCO 07:00:33 -73.7 Dark Down 54.6 61.9 Up 06:54:25 - 07:06:41 35
Lake Havasu City 07:00:38 -74.0 Dark Down 53.5 61.1 Up 06:54:30 - 07:06:46 -6
Idyllwild 07:00:49 -73.9 Dark Down 51.5 60.2 Up 06:54:41 - 07:06:57 -31
Parker 07:00:38 -74.3 Dark Down 53.4 60.7 Up 06:54:30 - 07:06:46 -43
Blythe 07:00:40 -74.7 Dark Down 52.9 60.1 Up 06:54:32 - 07:06:48 -92
Calipatria 07:00:44 -74.9 Dark Down 52.0 59.6 Up 06:54:36 - 07:06:52 -123
George/Scottsdale 07:00:27 -75.3 Dark Down 54.9 60.2 Up 06:54:19 - 07:06:35 -138
Yuma 07:00:40 -75.6 Dark Down 52.4 59.1 Up 06:54:32 - 07:06:48 -189

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 54598, (2022/11/18 06:57UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1 23.67  52
34Bet Aur      05:59:31.6 +44:56:51  1.9  3.36  75
38 Aur         06:03:18.2 +42:54:39  6.1  2.66  74
PPM 048880     06:14:39.9 +44:35:04  8.2  0.92  72
PPM 048905     06:16:20.7 +43:39:57  9.3  0.18  72
54598          06:17:08.7 +43:46:37 15.4        72
Positions are for J2000

Event circumstances last updated at 2020/02/24 22:57:08 UT

Marc W. Buie, Southwest Research Institute

RECON