RECON: TNO occultation with 511555

Event between (511555) 14UM225 and star GA1080:00221352 with event index number of 1259381

Geocentric closest approach at 2022/09/15 05:33:56 UTC

J2000 position of star is 02:06:28.2 +19:49:23
Equinox of date position of star is 02:07:32.1 +19:54:50
Stellar brightness G=13.4, use SENSEUP=32
Star is 17 degrees from the moon. Moon is 75% illuminated.
TNO apparent brightness V=23.5

[RECON map]
TNO is 40.3 AU from the Sun and 39.6 AU from the Earth.
The TNO is moving 17.3 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 155 seconds.
The 1-sigma cross-track error in the shadow position is 2241 km.
The sky-plane scale is 28736.2 km/arcsec.

The TNO has an absolute magnitude Hv=7.4
Diameter=199.5 km assuming a 5% albedo -- 11.6 sec chord
Diameter=81.5 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 511555, (2022/09/15 05:34UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:13.6 +16:33:12  0.8 35.59  18
6Bet Ari       01:55:53.9 +20:55:05  2.6  2.94  20
15 Ari         02:11:53.4 +19:36:23  5.7  1.03  16
PPM 091360     02:07:31.8 +20:41:59  7.7  0.77  17
PPM 117951     02:07:49.6 +19:43:26  9.6  0.21  17
511555         02:07:43.8 +19:55:49 13.4        17
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 16.1 km RECON observability=1.0 and success probability=17.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 05:37:13 -29.6 Dark Up 26.2 89.8 Low 05:23:48 - 05:50:39 2024
Summerland 05:37:15 -29.7 Dark Up 26.0 89.5 Low 05:23:50 - 05:50:41 2012
Penticton 05:37:15 -29.8 Dark Up 26.1 89.5 Low 05:23:50 - 05:50:41 2004
Okanagan Falls 05:37:16 -29.9 Dark Up 26.1 89.4 Low 05:23:50 - 05:50:41 1993
Oliver 05:37:17 -30.1 Dark Up 26.1 89.4 Low 05:23:52 - 05:50:43 1981
Anarchist Mountain Observatory 05:37:18 -30.3 Dark Up 26.2 89.4 Low 05:23:52 - 05:50:43 1964
Oroville 05:37:18 -30.3 Dark Up 26.2 89.4 Low 05:23:53 - 05:50:44 1962
Tonasket 05:37:19 -30.5 Dark Up 26.2 89.2 Low 05:23:54 - 05:50:45 1946
Okanogan 05:37:21 -30.7 Dark Up 26.1 89.0 Low 05:23:56 - 05:50:47 1927
Brewster 05:37:23 -30.8 Dark Up 25.9 88.7 Low 05:23:57 - 05:50:48 1914
Manson/Chelan 05:37:24 -30.8 Dark Up 25.7 88.3 Low 05:23:59 - 05:50:50 1910
Entiat 05:37:25 -30.9 Dark Up 25.6 88.2 Low 05:24:00 - 05:50:51 1897
Wenatchee 05:37:27 -31.1 Dark Up 25.6 88.0 Low 05:24:01 - 05:50:52 1882
Ellensburg 05:37:29 -31.3 Dark Up 25.4 87.6 Low 05:24:03 - 05:50:54 1859
Yakima 05:37:32 -31.6 Dark Up 25.4 87.4 Low 05:24:06 - 05:50:57 1832
Toppenish/White Swan 05:37:32 -31.8 Dark Up 25.5 87.5 Low 05:24:07 - 05:50:58 1812
Goldendale 05:37:35 -32.0 Dark Up 25.2 86.9 Low 05:24:10 - 05:51:01 1785
The Dalles 05:37:36 -32.0 Dark Up 24.9 86.5 Low 05:24:11 - 05:51:02 1779
Pasco 05:37:31 -32.5 Dark Up 26.4 88.3 Low 05:24:06 - 05:50:57 1768
George/Umatilla 05:37:33 -32.7 Dark Up 26.2 88.0 Low 05:24:07 - 05:50:58 1751
Maupin 05:37:39 -32.4 Dark Up 25.0 86.4 Low 05:24:13 - 05:51:04 1747
PNWRO 05:37:32 -32.8 Dark Up 26.5 88.3 Low 05:24:07 - 05:50:58 1744
Madras/Culver 05:37:41 -32.8 Dark Up 24.9 86.2 Low 05:24:16 - 05:51:07 1709
Sisters 05:37:43 -32.8 Dark Up 24.6 85.7 Low 05:24:18 - 05:51:09 1698
Redmond 05:37:43 -33.0 Dark Up 24.9 86.0 Low 05:24:18 - 05:51:09 1684
Bend 05:37:45 -33.1 Dark Up 24.7 85.8 Low 05:24:19 - 05:51:10 1673
Oregon Observatory 05:37:46 -33.2 Dark Up 24.6 85.6 Low 05:24:20 - 05:51:11 1664
La Pine/Gilchrist 05:37:46 -33.3 Dark Up 24.6 85.5 Low 05:24:21 - 05:51:12 1651
North Lake 05:37:48 -33.9 Dark Up 25.0 85.7 Low 05:24:22 - 05:51:13 1601
Chiloquin 05:37:52 -33.9 Dark Up 24.2 84.8 Low 05:24:27 - 05:51:18 1579
Klamath Falls 05:37:54 -34.2 Dark Up 24.3 84.7 Low 05:24:28 - 05:51:19 1551
Paisley 05:37:50 -34.5 Dark Up 25.2 85.7 Low 05:24:25 - 05:51:16 1550
Tulelake 05:37:54 -34.5 Dark Up 24.5 84.7 Low 05:24:29 - 05:51:20 1522
Lakeview 05:37:52 -34.9 Dark Up 25.3 85.6 Low 05:24:27 - 05:51:18 1506
Cedarville 05:37:55 -35.5 Dark Up 25.4 85.4 Low 05:24:29 - 05:51:20 1451
Fall River/Burney 05:37:59 -35.2 Dark Up 24.5 84.4 Low 05:24:33 - 05:51:24 1451
Susanville 05:38:01 -36.1 Dark Up 25.0 84.6 Low 05:24:35 - 05:51:26 1380
Greenville 05:38:03 -36.1 Dark Up 24.7 84.3 Low 05:24:37 - 05:51:28 1368
Gimple 05:38:02 -36.2 Dark Up 24.8 84.3 Low 05:24:37 - 05:51:28 1365
Quincy 05:38:03 -36.3 Dark Up 24.7 84.2 Low 05:24:38 - 05:51:29 1352
Portola 05:38:03 -36.6 Dark Up 25.1 84.4 Low 05:24:38 - 05:51:29 1327
Reno 05:38:04 -37.1 Dark Up 25.5 84.7 Low 05:24:39 - 05:51:30 1286
Carson City 05:38:05 -37.4 Dark Up 25.5 84.5 Low 05:24:40 - 05:51:31 1257
Gardnerville 05:38:07 -37.6 Dark Up 25.5 84.4 Low 05:24:41 - 05:51:32 1236
Yerington 05:38:05 -37.9 Dark Up 26.0 84.8 Low 05:24:40 - 05:51:31 1222
Hawthorne 05:38:06 -38.5 Dark Up 26.4 84.9 Low 05:24:41 - 05:51:32 1168
Lee Vining 05:38:10 -38.7 Dark Up 25.9 84.3 Low 05:24:44 - 05:51:35 1138
Tonopah 05:38:07 -39.6 Dark Up 27.4 85.5 Low 05:24:41 - 05:51:32 1086
Bishop 05:38:11 -39.5 Dark Up 26.5 84.5 Low 05:24:46 - 05:51:37 1066
Lone Pine 05:38:14 -40.2 Dark Up 26.7 84.3 Low 05:24:48 - 05:51:39 993
Beatty 05:38:11 -40.7 Dark Up 27.7 85.2 Low 05:24:46 - 05:51:37 976
CPSLO 05:38:23 -39.6 Dark Up 24.4 82.3 Low 05:24:58 - 05:51:49 969
Indian Springs 05:38:10 -41.6 Dark Up 28.6 85.6 Low 05:24:45 - 05:51:36 914
Niwot 05:37:35 -43.3 Dark Up 36.7 94.3 Up 05:24:09 - 05:51:00 885
SwRI 05:37:35 -43.3 Dark Up 36.6 94.1 Up 05:24:10 - 05:51:01 879
Henderson 05:38:12 -42.3 Dark Up 29.1 85.7 Low 05:24:46 - 05:51:37 847
Wildwood 05:38:25 -41.7 Dark Up 26.0 82.8 Low 05:25:00 - 05:51:51 799
Searchlight/Boulder City 05:38:14 -42.8 Dark Up 29.1 85.4 Low 05:24:49 - 05:51:40 796
Laughlin/Bullhead City 05:38:15 -43.2 Dark Up 29.4 85.4 Low 05:24:49 - 05:51:40 759
Patrick 05:38:12 -43.4 Dark Up 29.9 85.9 Low 05:24:47 - 05:51:38 757
Kingman/Dolan Springs 05:38:13 -43.5 Dark Up 29.8 85.7 Low 05:24:48 - 05:51:39 744
Mohave Valley 05:38:15 -43.4 Dark Up 29.3 85.3 Low 05:24:50 - 05:51:41 735
DCO 05:38:12 -44.0 Dark Up 30.5 86.2 Up 05:24:47 - 05:51:38 707
Idyllwild 05:38:24 -43.1 Dark Up 27.5 83.6 Low 05:24:58 - 05:51:49 706
Lake Havasu City 05:38:17 -43.9 Dark Up 29.5 85.2 Low 05:24:51 - 05:51:42 693
Parker 05:38:18 -44.1 Dark Up 29.5 85.0 Low 05:24:53 - 05:51:44 661
Blythe 05:38:21 -44.4 Dark Up 29.2 84.6 Low 05:24:55 - 05:51:46 625
Calipatria 05:38:24 -44.2 Dark Up 28.4 83.8 Low 05:24:59 - 05:51:50 613
Yuma 05:38:24 -45.0 Dark Up 29.1 84.0 Low 05:24:59 - 05:51:50 545

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 511555, (2022/09/15 05:34UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 35.59  18
6Bet Ari       01:54:38.5 +20:48:27  2.6  2.94  20
15 Ari         02:10:37.7 +19:30:01  5.7  1.03  16
PPM 091360     02:06:15.9 +20:35:32  7.7  0.77  17
PPM 117951     02:06:34.1 +19:36:59  9.6  0.21  17
511555         02:06:28.2 +19:49:23 13.4        17
Positions are for J2000

Event circumstances last updated at 2019/03/19 00:46:21 UT

Marc W. Buie, Southwest Research Institute

RECON