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 06:56:59 UTC

J2000 position of star is 06:17:08.7 +43:46:37
Equinox of date position of star is 06:18:36.1 +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 69 seconds.
The 1-sigma cross-track error in the shadow position is 599 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 24.7 km RECON observability=1.0 and success probability=61.6%
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 07:00:41 -57.9 Dark Down 55.3 80.5 Up 06:54:26 - 07:06:57 1665
Peachland 07:00:43 -58.3 Dark Down 54.9 79.5 Up 06:54:28 - 07:06:59 1621
Summerland 07:00:44 -58.4 Dark Down 54.9 79.4 Up 06:54:28 - 07:06:59 1603
Penticton 07:00:43 -58.5 Dark Down 55.0 79.4 Up 06:54:28 - 07:06:59 1594
Victoria 07:00:58 -58.5 Dark Down 52.3 75.9 Up 06:54:43 - 07:07:14 1577
Oliver 07:00:44 -58.9 Dark Down 54.9 78.9 Up 06:54:28 - 07:06:59 1557
Anarchist Mountain Observatory 07:00:43 -59.1 Dark Down 55.0 78.7 Up 06:54:28 - 07:06:59 1534
Tonasket 07:00:44 -59.3 Dark Down 54.9 78.3 Up 06:54:29 - 07:07:00 1503
Okanogan 07:00:45 -59.6 Dark Down 54.7 77.7 Up 06:54:30 - 07:07:01 1471
Brewster 07:00:47 -59.8 Dark Down 54.6 77.2 Up 06:54:31 - 07:07:02 1446
Manson/Chelan 07:00:48 -59.9 Dark Down 54.3 76.8 Up 06:54:32 - 07:07:03 1433
Entiat 07:00:49 -60.1 Dark Down 54.2 76.4 Up 06:54:33 - 07:07:04 1411
Wenatchee 07:00:50 -60.3 Dark Down 54.1 76.0 Up 06:54:34 - 07:07:05 1386
Ellensburg 07:00:51 -60.7 Dark Down 53.8 75.4 Up 06:54:36 - 07:07:07 1348
Yakima 07:00:52 -61.0 Dark Down 53.7 74.8 Up 06:54:37 - 07:07:08 1305
Toppenish/White Swan 07:00:52 -61.3 Dark Down 53.8 74.6 Up 06:54:37 - 07:07:08 1278
Pasco 07:00:48 -61.7 Dark Down 54.6 75.1 Up 06:54:32 - 07:07:03 1236
Goldendale 07:00:55 -61.7 Dark Down 53.3 73.7 Up 06:54:39 - 07:07:10 1230
The Dalles 07:00:56 -61.8 Dark Down 53.0 73.3 Up 06:54:40 - 07:07:11 1215
PNWRO 07:00:47 -62.0 Dark Down 54.6 74.8 Up 06:54:32 - 07:07:03 1205
Maupin 07:00:56 -62.2 Dark Down 53.0 72.8 Up 06:54:41 - 07:07:12 1168
Sisters 07:01:00 -62.8 Dark Down 52.4 71.5 Up 06:54:44 - 07:07:15 1088
Redmond 07:00:58 -63.0 Dark Down 52.6 71.6 Up 06:54:43 - 07:07:14 1075
Bend 07:00:59 -63.1 Dark Down 52.5 71.3 Up 06:54:44 - 07:07:15 1056
Oregon Observatory 07:01:00 -63.2 Dark Down 52.3 71.0 Up 06:54:44 - 07:07:15 1041
La Pine/Gilchrist 07:01:01 -63.4 Dark Down 52.2 70.8 Up 06:54:45 - 07:07:16 1021
North Lake 07:00:59 -64.0 Dark Down 52.5 70.5 Up 06:54:43 - 07:07:14 960
Paisley 07:00:59 -64.6 Dark Down 52.5 69.9 Up 06:54:43 - 07:07:14 892
Klamath Falls 07:01:04 -64.6 Dark Down 51.5 68.9 Up 06:54:48 - 07:07:19 875
Lakeview 07:00:59 -65.1 Dark Down 52.5 69.4 Up 06:54:43 - 07:07:14 834
Cedarville 07:00:59 -65.8 Dark Down 52.4 68.6 Up 06:54:43 - 07:07:14 760
Fall River/Burney 07:01:04 -65.8 Dark Down 51.4 67.7 Up 06:54:49 - 07:07:20 741
Susanville 07:01:02 -66.6 Dark Down 51.6 67.2 Up 06:54:47 - 07:07:18 655
Greenville 07:01:04 -66.7 Dark Down 51.3 66.8 Up 06:54:48 - 07:07:19 633
Gimple 07:01:03 -66.7 Dark Down 51.4 66.8 Up 06:54:48 - 07:07:19 631
Quincy 07:01:04 -66.9 Dark Down 51.3 66.5 Up 06:54:48 - 07:07:19 612
Portola 07:01:02 -67.2 Dark Down 51.5 66.5 Up 06:54:47 - 07:07:18 586
Reno 07:01:00 -67.6 Dark Down 51.9 66.4 Up 06:54:44 - 07:07:15 541
Carson City 07:01:00 -68.0 Dark Down 51.8 65.9 Up 06:54:45 - 07:07:16 503
Gardnerville 07:01:00 -68.2 Dark Down 51.7 65.7 Up 06:54:45 - 07:07:16 476
Yerington 07:00:58 -68.4 Dark Down 52.1 65.9 Up 06:54:43 - 07:07:14 466
Hawthorne 07:00:56 -69.0 Dark Down 52.3 65.4 Up 06:54:41 - 07:07:12 404
Lee Vining 07:00:59 -69.3 Dark Down 51.7 64.7 Up 06:54:43 - 07:07:14 356
Niwot 06:59:57 -68.9 Dark Down 62.4 70.0 Up 06:53:41 - 07:06:12 336
SwRI 06:59:57 -69.0 Dark Down 62.3 69.8 Up 06:53:42 - 07:06:13 326
Tonopah 07:00:51 -69.8 Dark Down 53.1 65.1 Up 06:54:35 - 07:07:06 320
Bishop 07:00:57 -70.1 Dark Down 52.0 64.1 Up 06:54:41 - 07:07:12 275
Beatty 07:00:50 -71.1 Dark Down 52.9 63.8 Up 06:54:35 - 07:07:06 187
Indian Springs 07:00:46 -71.7 Dark Down 53.5 63.5 Up 06:54:30 - 07:07:01 127
CPSLO 07:01:08 -70.9 Dark Down 49.4 61.6 Up 06:54:53 - 07:07:24 119
Henderson 07:00:43 -72.4 Dark Down 53.8 63.0 Up 06:54:28 - 07:06:59 55
Searchlight/Boulder City 07:00:43 -72.9 Dark Down 53.6 62.3 Up 06:54:28 - 07:06:59 -7
Patrick 07:00:39 -73.2 Dark Down 54.3 62.3 Up 06:54:23 - 07:06:54 -35
Laughlin/Bullhead City 07:00:42 -73.3 Dark Down 53.7 61.9 Up 06:54:26 - 07:06:57 -46
Kingman/Dolan Springs 07:00:40 -73.4 Dark Down 54.1 62.0 Up 06:54:24 - 07:06:55 -55
Wildwood 07:01:00 -72.9 Dark Down 50.3 60.5 Up 06:54:45 - 07:07:16 -63
Mohave Valley 07:00:42 -73.6 Dark Down 53.6 61.6 Up 06:54:26 - 07:06:57 -75
DCO 07:00:36 -73.7 Dark Down 54.7 61.9 Up 06:54:20 - 07:06:51 -82
Lake Havasu City 07:00:41 -74.0 Dark Down 53.5 61.1 Up 06:54:26 - 07:06:57 -123
Idyllwild 07:00:52 -73.9 Dark Down 51.5 60.2 Up 06:54:37 - 07:07:08 -148
Parker 07:00:41 -74.3 Dark Down 53.4 60.7 Up 06:54:26 - 07:06:57 -161
Blythe 07:00:43 -74.7 Dark Down 52.9 60.1 Up 06:54:27 - 07:06:58 -209
Calipatria 07:00:47 -74.9 Dark Down 52.0 59.6 Up 06:54:32 - 07:07:03 -240
George/Scottsdale 07:00:30 -75.3 Dark Down 54.9 60.2 Up 06:54:15 - 07:06:46 -255
Yuma 07:00:43 -75.6 Dark Down 52.4 59.1 Up 06:54:28 - 07:06:59 -306

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 2020/01/30 21:06:33 UT

Marc W. Buie, Southwest Research Institute

RECON