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 06:57:07 UTC

J2000 position of star is 06:17:08.7 +43:46:37
Equinox of date position of star is 06:18:47.7 +43:46:01
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 72 degrees from the moon. Moon is 34% illuminated.
TNO apparent brightness V=18.9

[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 36 seconds.
The 1-sigma cross-track error in the shadow position is 490 km.
The sky-plane scale is 9434.0 km/arcsec.

The TNO has an absolute magnitude Hv=7.4
Diameter=195.0 km assuming a 5% albedo -- 12.0 sec chord
Diameter=79.6 km assuming a 30% albedo -- 4.9 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         06:04:57.0 +42:54:30  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 31.1 km RECON observability=1.0 and success probability=79.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 07:00:52 -57.3 Dark Down 54.7 80.5 Up 06:57:21 - 07:04:23 1404
Sleaford 06:59:59 -57.1 Dark Down 63.6 93.1 Up 06:56:28 - 07:03:30 1334
Kelowna 07:00:51 -58.2 Dark Down 55.1 79.9 Up 06:57:20 - 07:04:22 1299
Peachland 07:00:52 -58.3 Dark Down 54.9 79.6 Up 06:57:21 - 07:04:23 1293
Summerland 07:00:52 -58.4 Dark Down 54.9 79.4 Up 06:57:21 - 07:04:23 1275
Penticton 07:00:51 -58.5 Dark Down 55.0 79.4 Up 06:57:20 - 07:04:22 1266
Victoria 07:01:06 -58.5 Dark Down 52.4 75.9 Up 06:57:35 - 07:04:37 1249
Oliver 07:00:52 -58.9 Dark Down 54.9 78.9 Up 06:57:21 - 07:04:23 1229
Anarchist Mountain Observatory 07:00:52 -59.1 Dark Down 55.0 78.8 Up 06:57:21 - 07:04:23 1206
Tonasket 07:00:53 -59.3 Dark Down 54.9 78.3 Up 06:57:22 - 07:04:24 1175
Okanogan 07:00:54 -59.6 Dark Down 54.8 77.7 Up 06:57:23 - 07:04:25 1143
Brewster 07:00:55 -59.8 Dark Down 54.6 77.3 Up 06:57:24 - 07:04:26 1118
Manson/Chelan 07:00:57 -59.9 Dark Down 54.3 76.8 Up 06:57:26 - 07:04:28 1105
Wenatchee 07:00:58 -60.3 Dark Down 54.1 76.1 Up 06:57:27 - 07:04:29 1058
Ellensburg 07:00:59 -60.7 Dark Down 53.8 75.4 Up 06:57:28 - 07:04:30 1020
Yakima 07:01:00 -61.0 Dark Down 53.7 74.9 Up 06:57:29 - 07:04:31 977
Toppenish/White Swan 07:01:00 -61.3 Dark Down 53.8 74.7 Up 06:57:29 - 07:04:31 950
Goldendale 07:01:02 -61.7 Dark Down 53.3 73.7 Up 06:57:31 - 07:04:33 902
The Dalles 07:01:04 -61.8 Dark Down 53.0 73.3 Up 06:57:33 - 07:04:35 887
PNWRO 07:00:55 -62.0 Dark Down 54.7 74.9 Up 06:57:24 - 07:04:26 877
Maupin 07:01:04 -62.2 Dark Down 53.0 72.8 Up 06:57:33 - 07:04:35 840
Sisters 07:01:08 -62.8 Dark Down 52.4 71.5 Up 06:57:37 - 07:04:39 759
Bend 07:01:07 -63.1 Dark Down 52.5 71.3 Up 06:57:36 - 07:04:38 728
Oregon Observatory 07:01:08 -63.2 Dark Down 52.4 71.0 Up 06:57:37 - 07:04:39 713
North Lake 07:01:07 -64.0 Dark Down 52.5 70.5 Up 06:57:36 - 07:04:38 632
Chiloquin 07:01:12 -64.3 Dark Down 51.6 69.3 Up 06:57:41 - 07:04:43 585
Klamath Falls 07:01:12 -64.6 Dark Down 51.6 68.9 Up 06:57:41 - 07:04:43 547
Lakeview 07:01:07 -65.1 Dark Down 52.5 69.4 Up 06:57:36 - 07:04:38 506
Cedarville 07:01:07 -65.8 Dark Down 52.4 68.6 Up 06:57:36 - 07:04:38 432
Fall River/Burney 07:01:12 -65.8 Dark Down 51.4 67.7 Up 06:57:41 - 07:04:43 413
Susanville 07:01:10 -66.6 Dark Down 51.7 67.2 Up 06:57:39 - 07:04:41 327
Greenville 07:01:12 -66.7 Dark Down 51.4 66.8 Up 06:57:41 - 07:04:43 305
Gimple 07:01:11 -66.8 Dark Down 51.4 66.8 Up 06:57:40 - 07:04:42 303
Quincy 07:01:12 -66.9 Dark Down 51.3 66.5 Up 06:57:41 - 07:04:43 284
Portola 07:01:10 -67.2 Dark Down 51.6 66.5 Up 06:57:39 - 07:04:41 258
Reno 07:01:08 -67.7 Dark Down 51.9 66.4 Up 06:57:37 - 07:04:39 213
Carson City 07:01:08 -68.0 Dark Down 51.8 65.9 Up 06:57:37 - 07:04:39 175
Gardnerville 07:01:08 -68.2 Dark Down 51.7 65.7 Up 06:57:37 - 07:04:39 148
Yerington 07:01:06 -68.4 Dark Down 52.1 65.9 Up 06:57:35 - 07:04:37 138
Hawthorne 07:01:04 -69.0 Dark Down 52.3 65.4 Up 06:57:33 - 07:04:35 76
Lee Vining 07:01:07 -69.3 Dark Down 51.7 64.7 Up 06:57:36 - 07:04:38 28
Dunrhomin 07:00:04 -68.8 Dark Down 62.4 70.3 Up 06:56:33 - 07:03:35 24
CU-SBO 07:00:05 -69.0 Dark Down 62.3 69.8 Up 06:56:34 - 07:03:36 -2
Tonopah 07:00:59 -69.9 Dark Down 53.1 65.1 Up 06:57:28 - 07:04:30 -8
Bishop 07:01:05 -70.1 Dark Down 52.0 64.1 Up 06:57:34 - 07:04:36 -53
Beatty 07:00:58 -71.1 Dark Down 52.9 63.8 Up 06:57:27 - 07:04:29 -141
Indian Springs 07:00:54 -71.7 Dark Down 53.6 63.5 Up 06:57:23 - 07:04:25 -201
Henderson 07:00:51 -72.4 Dark Down 53.8 63.0 Up 06:57:20 - 07:04:22 -273
Patrick 07:00:46 -73.2 Dark Down 54.3 62.3 Up 06:57:15 - 07:04:17 -363
Laughlin/Bullhead City 07:00:50 -73.3 Dark Down 53.7 61.9 Up 06:57:19 - 07:04:21 -374
Kingman/Dolan Springs 07:00:47 -73.4 Dark Down 54.1 62.0 Up 06:57:16 - 07:04:18 -383
Wildwood 07:01:08 -72.9 Dark Down 50.3 60.5 Up 06:57:37 - 07:04:39 -391
Mohave Valley 07:00:50 -73.6 Dark Down 53.6 61.6 Up 06:57:19 - 07:04:21 -403
Lake Havasu City 07:00:49 -74.0 Dark Down 53.6 61.1 Up 06:57:18 - 07:04:20 -451
Idyllwild 07:01:00 -73.9 Dark Down 51.5 60.2 Up 06:57:29 - 07:04:31 -477
Parker 07:00:49 -74.3 Dark Down 53.4 60.7 Up 06:57:18 - 07:04:20 -489
Calipatria 07:00:55 -74.9 Dark Down 52.0 59.6 Up 06:57:24 - 07:04:26 -568
George/Scottsdale 07:00:38 -75.3 Dark Down 54.9 60.2 Up 06:57:07 - 07:04:09 -583
Yuma 07:00:51 -75.6 Dark Down 52.5 59.1 Up 06:57:20 - 07:04:22 -634

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         07:45:17.9 +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 2022/10/03 04:12:48 UT

Marc W. Buie, Southwest Research Institute

RECON