RECON: TNO occultation with 11WJ157

Event between 11WJ157 and star GA1260:03174866 with event index number of 1311429

Geocentric closest approach at 2023/11/05 06:56:23 UTC

J2000 position of star is 07:35:52.8 +37:03:06
Equinox of date position of star is 07:37:13.3 +37:00:21
Stellar brightness G=14.9, use SENSEUP=128
Star is 24 degrees from the moon. Moon is 51% illuminated.
TNO apparent brightness V=26.0

[RECON map]
TNO is 38.7 AU from the Sun and 38.3 AU from the Earth.
The TNO is moving 11.5 km/sec on the sky relative to the star, or, 1.5 arcsec/hr.
The 1-sigma error in the time of the event is 182 seconds.
The 1-sigma cross-track error in the shadow position is 5795 km.
The sky-plane scale is 27795.4 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=557.2 km assuming a 5% albedo -- 5.3 sec chord
Diameter=227.5 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is 6:1EEEEE
 
 
 
 
 
 

Star training set for 11WJ157, (2023/11/05 06:56UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:46.5 +27:58:00  1.1  9.24  19
PPM 072880     07:33:32.4 +38:50:36  6.5  2.00  26
PPM 072911     07:35:00.3 +37:08:06  7.5  0.51  25
PPM 072981     07:39:01.6 +36:50:02  9.9  0.35  24
11WJ157        07:37:28.0 +36:59:50 14.9        24
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 4.9 sigma about the mid-time.
The median site spacing is 23.5 km RECON observability=1.0 and success probability=3.8%
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 07:03:33 -54.6 Dark Up 31.6 68.5 Up 06:48:33 - 07:18:33 -9492
Kelowna 07:03:31 -54.9 Dark Up 31.4 68.2 Up 06:48:31 - 07:18:31 -9531
Peachland 07:03:30 -55.0 Dark Up 31.2 67.9 Up 06:48:30 - 07:18:30 -9539
Summerland 07:03:29 -55.1 Dark Up 31.2 67.9 Up 06:48:29 - 07:18:29 -9556
Penticton 07:03:29 -55.2 Dark Up 31.2 67.9 Up 06:48:29 - 07:18:29 -9563
Oliver 07:03:31 -55.5 Dark Up 31.1 67.8 Up 06:48:31 - 07:18:31 -9599
Victoria 07:03:42 -55.3 Dark Up 28.5 65.1 Low 06:48:42 - 07:18:42 -9618
Anarchist Mountain Observatory 07:03:31 -55.7 Dark Up 31.1 67.8 Up 06:48:31 - 07:18:31 -9619
Tonasket 07:03:31 -56.0 Dark Up 31.0 67.6 Up 06:48:31 - 07:18:31 -9650
Okanogan 07:03:28 -56.3 Dark Up 30.7 67.3 Up 06:48:28 - 07:18:28 -9682
Brewster 07:03:28 -56.5 Dark Up 30.5 67.0 Up 06:48:28 - 07:18:28 -9708
Manson/Chelan 07:03:28 -56.7 Dark Up 30.2 66.7 Up 06:48:28 - 07:18:28 -9725
Entiat 07:03:31 -56.9 Dark Up 30.1 66.5 Up 06:48:31 - 07:18:31 -9746
Wenatchee 07:03:28 -57.1 Dark Up 29.9 66.3 Low 06:48:28 - 07:18:28 -9771
Ellensburg 07:03:31 -57.4 Dark Up 29.6 66.0 Low 06:48:31 - 07:18:31 -9810
Yakima 07:03:28 -57.8 Dark Up 29.4 65.8 Low 06:48:28 - 07:18:28 -9850
Toppenish/White Swan 07:03:25 -58.0 Dark Up 29.4 65.7 Low 06:48:25 - 07:18:25 -9874
Pasco 07:03:21 -58.4 Dark Up 30.2 66.4 Up 06:48:21 - 07:18:21 -9900
Goldendale 07:03:26 -58.5 Dark Up 28.9 65.2 Low 06:48:26 - 07:18:26 -9924
PNWRO 07:03:21 -58.7 Dark Up 30.2 66.4 Up 06:48:21 - 07:18:21 -9927
The Dalles 07:03:28 -58.6 Dark Up 28.6 64.9 Low 06:48:28 - 07:18:28 -9941
Maupin 07:03:25 -59.0 Dark Up 28.5 64.8 Low 06:48:25 - 07:18:25 -9984
Sisters 07:03:26 -59.7 Dark Up 27.8 64.1 Low 06:48:26 - 07:18:26 -10064
Redmond 07:03:23 -59.8 Dark Up 28.0 64.3 Low 06:48:23 - 07:18:23 -10072
Bend 07:03:24 -60.0 Dark Up 27.9 64.1 Low 06:48:24 - 07:18:24 -10091
Oregon Observatory 07:03:26 -60.1 Dark Up 27.7 63.9 Low 06:48:26 - 07:18:26 -10106
La Pine/Gilchrist 07:03:26 -60.3 Dark Up 27.6 63.8 Low 06:48:26 - 07:18:26 -10125
North Lake 07:03:23 -60.8 Dark Up 27.8 63.9 Low 06:48:23 - 07:18:23 -10176
Paisley 07:03:15 -61.4 Dark Up 27.7 63.8 Low 06:48:15 - 07:18:15 -10234
Klamath Falls 07:03:21 -61.5 Dark Up 26.7 63.0 Low 06:48:21 - 07:18:21 -10262
Lakeview 07:03:17 -62.0 Dark Up 27.6 63.7 Low 06:48:17 - 07:18:17 -10285
Cedarville 07:03:12 -62.6 Dark Up 27.5 63.5 Low 06:48:12 - 07:18:12 -10351
Fall River/Burney 07:03:14 -62.7 Dark Up 26.4 62.6 Low 06:48:14 - 07:18:14 -10380
Susanville 07:03:13 -63.5 Dark Up 26.6 62.7 Low 06:48:13 - 07:18:13 -10450
Greenville 07:03:09 -63.7 Dark Up 26.3 62.5 Low 06:48:09 - 07:18:09 -10472
Gimple 07:03:09 -63.7 Dark Up 26.3 62.5 Low 06:48:09 - 07:18:09 -10473
Quincy 07:03:10 -63.8 Dark Up 26.2 62.4 Low 06:48:10 - 07:18:10 -10491
Portola 07:03:14 -64.1 Dark Up 26.5 62.5 Low 06:48:14 - 07:18:14 -10509
Niwot 07:02:05 -65.2 Dark Up 37.1 69.5 Up 06:47:05 - 07:17:05 -10530
SwRI 07:02:09 -65.3 Dark Up 37.0 69.4 Up 06:47:09 - 07:17:09 -10540
Reno 07:03:04 -64.5 Dark Up 26.8 62.7 Low 06:48:04 - 07:18:04 -10543
Carson City 07:03:06 -64.9 Dark Up 26.6 62.6 Low 06:48:06 - 07:18:06 -10577
Gardnerville 07:03:00 -65.1 Dark Up 26.5 62.5 Low 06:48:00 - 07:18:00 -10600
Yerington 07:03:00 -65.2 Dark Up 27.0 62.7 Low 06:48:00 - 07:18:00 -10603
Hawthorne 07:02:58 -65.8 Dark Up 27.1 62.8 Low 06:47:58 - 07:17:58 -10652
Lee Vining 07:02:56 -66.2 Dark Up 26.5 62.3 Low 06:47:56 - 07:17:56 -10699
Tonopah 07:02:49 -66.6 Dark Up 27.9 63.1 Low 06:47:49 - 07:17:49 -10710
Bishop 07:02:50 -67.0 Dark Up 26.7 62.3 Low 06:47:50 - 07:17:50 -10762
Beatty 07:02:45 -67.8 Dark Up 27.6 62.8 Low 06:47:45 - 07:17:45 -10820
Indian Springs 07:02:38 -68.4 Dark Up 28.2 63.1 Low 06:47:38 - 07:17:38 -10859
Henderson 07:02:33 -69.1 Dark Up 28.5 63.1 Low 06:47:33 - 07:17:33 -10912
CPSLO 07:02:53 -68.1 Dark Up 24.1 60.5 Low 06:47:53 - 07:17:53 -10918
Searchlight/Boulder City 07:02:30 -69.6 Dark Up 28.3 62.8 Low 06:47:30 - 07:17:30 -10965
Patrick 07:02:28 -69.9 Dark Up 29.0 63.2 Low 06:47:28 - 07:17:28 -10976
Laughlin/Bullhead City 07:02:31 -70.0 Dark Up 28.4 62.8 Low 06:47:31 - 07:17:31 -10993
Kingman/Dolan Springs 07:02:26 -70.0 Dark Up 28.8 63.0 Low 06:47:26 - 07:17:26 -10995
DCO 07:02:24 -70.3 Dark Up 29.4 63.3 Low 06:47:24 - 07:17:24 -11006
Mohave Valley 07:02:25 -70.2 Dark Up 28.2 62.7 Low 06:47:25 - 07:17:25 -11018
Wildwood 07:02:40 -69.9 Dark Up 25.0 60.8 Low 06:47:40 - 07:17:40 -11053
Lake Havasu City 07:02:23 -70.7 Dark Up 28.2 62.6 Low 06:47:23 - 07:17:23 -11055
Parker 07:02:21 -71.0 Dark Up 28.1 62.4 Low 06:47:21 - 07:17:21 -11086
Idyllwild 07:02:31 -70.8 Dark Up 26.2 61.4 Low 06:47:31 - 07:17:31 -11105
Blythe 07:02:20 -71.5 Dark Up 27.6 62.0 Low 06:47:20 - 07:17:20 -11131
George/Scottsdale 07:02:09 -71.8 Dark Up 29.7 63.0 Low 06:47:09 - 07:17:09 -11134
Calipatria 07:02:21 -71.7 Dark Up 26.7 61.5 Low 06:47:21 - 07:17:21 -11167
Yuma 07:02:17 -72.3 Dark Up 27.1 61.6 Low 06:47:17 - 07:17:17 -11211

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 11WJ157, (2023/11/05 06:56UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1  9.24  19
PPM 072880     07:31:55.5 +38:53:44  6.5  2.00  26
PPM 072911     07:33:24.8 +37:11:17  7.5  0.51  25
PPM 072981     07:37:26.6 +36:53:21  9.9  0.35  24
11WJ157        07:35:52.8 +37:03:06 14.9        24
Positions are for J2000

Event circumstances last updated at 2020/02/25 23:09:27 UT

Marc W. Buie, Southwest Research Institute

RECON