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 06:52:42 UTC

J2000 position of star is 07:35:52.8 +37:03:06
Equinox of date position of star is 07:37:17.2 +37:00:13
Stellar brightness G=14.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 24 degrees from the moon. Moon is 51% illuminated.
TNO apparent brightness V=21.0

[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 136 seconds.
The 1-sigma cross-track error in the shadow position is 2499 km.
The sky-plane scale is 27795.6 km/arcsec.

The TNO has an absolute magnitude Hv=5.0
Diameter=591.6 km assuming a 5% albedo -- 51.6 sec chord
Diameter=241.5 km assuming a 30% albedo -- 21.1 sec chord
Dynamical classification is 6:1EEEEE
 
 
 
 
 
 

Star training set for 11WJ157, (2023/11/05 06:53UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:46.4 +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 5.0 sigma about the mid-time.
The median site spacing is 25.2 km RECON observability=1.0 and success probability=2.0%
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 06:59:54 -54.4 Dark Up 31.1 67.9 Up 06:48:06 - 07:11:42 -6742
Kelowna 06:59:54 -54.7 Dark Up 30.8 67.6 Up 06:48:06 - 07:11:42 -6780
Peachland 06:59:55 -54.8 Dark Up 30.6 67.4 Up 06:48:07 - 07:11:43 -6788
Summerland 06:59:54 -54.9 Dark Up 30.6 67.4 Up 06:48:06 - 07:11:42 -6804
Penticton 06:59:55 -55.0 Dark Up 30.7 67.4 Up 06:48:07 - 07:11:43 -6812
Oliver 06:59:52 -55.4 Dark Up 30.5 67.2 Up 06:48:04 - 07:11:40 -6848
Victoria 07:00:07 -55.1 Dark Up 28.0 64.6 Low 06:48:19 - 07:11:55 -6862
Anarchist Mountain Observatory 06:59:56 -55.6 Dark Up 30.6 67.2 Up 06:48:08 - 07:11:44 -6868
Tonasket 06:59:55 -55.8 Dark Up 30.4 67.0 Up 06:48:07 - 07:11:43 -6898
Okanogan 06:59:56 -56.1 Dark Up 30.2 66.7 Up 06:48:08 - 07:11:44 -6931
Brewster 06:59:55 -56.3 Dark Up 30.0 66.5 Low 06:48:07 - 07:11:43 -6956
Manson/Chelan 06:59:53 -56.5 Dark Up 29.6 66.2 Low 06:48:05 - 07:11:41 -6972
Wenatchee 06:59:53 -56.9 Dark Up 29.3 65.8 Low 06:48:05 - 07:11:41 -7018
Ellensburg 06:59:52 -57.2 Dark Up 29.0 65.5 Low 06:48:04 - 07:11:40 -7057
Yakima 06:59:56 -57.6 Dark Up 28.9 65.3 Low 06:48:08 - 07:11:44 -7097
Toppenish/White Swan 06:59:50 -57.8 Dark Up 28.9 65.2 Low 06:48:02 - 07:11:38 -7121
Pasco 06:59:46 -58.2 Dark Up 29.6 65.9 Low 06:47:58 - 07:11:34 -7149
Goldendale 06:59:52 -58.2 Dark Up 28.4 64.7 Low 06:48:04 - 07:11:40 -7170
PNWRO 06:59:43 -58.5 Dark Up 29.6 65.9 Low 06:47:55 - 07:11:31 -7176
The Dalles 06:59:50 -58.3 Dark Up 28.0 64.4 Low 06:48:02 - 07:11:38 -7187
Maupin 06:59:50 -58.8 Dark Up 27.9 64.3 Low 06:48:02 - 07:11:38 -7230
Sisters 06:59:50 -59.4 Dark Up 27.2 63.6 Low 06:48:02 - 07:11:38 -7309
Redmond 06:59:47 -59.6 Dark Up 27.5 63.8 Low 06:47:59 - 07:11:35 -7318
Bend 06:59:48 -59.7 Dark Up 27.3 63.6 Low 06:48:00 - 07:11:36 -7336
Oregon Observatory 06:59:47 -59.8 Dark Up 27.1 63.5 Low 06:47:59 - 07:11:35 -7352
La Pine/Gilchrist 06:59:46 -60.0 Dark Up 27.0 63.3 Low 06:47:58 - 07:11:34 -7371
North Lake 06:59:43 -60.6 Dark Up 27.2 63.4 Low 06:47:55 - 07:11:31 -7422
Chiloquin 06:59:46 -60.9 Dark Up 26.2 62.7 Low 06:47:58 - 07:11:34 -7472
Paisley 06:59:40 -61.2 Dark Up 27.1 63.4 Low 06:47:52 - 07:11:28 -7480
Klamath Falls 06:59:44 -61.2 Dark Up 26.1 62.5 Low 06:47:56 - 07:11:32 -7506
Lakeview 06:59:41 -61.7 Dark Up 27.0 63.2 Low 06:47:53 - 07:11:29 -7532
Cedarville 06:59:36 -62.4 Dark Up 26.9 63.0 Low 06:47:48 - 07:11:24 -7597
Fall River/Burney 06:59:38 -62.4 Dark Up 25.8 62.2 Low 06:47:50 - 07:11:26 -7625
Susanville 06:59:35 -63.2 Dark Up 26.0 62.3 Low 06:47:47 - 07:11:23 -7696
Greenville 06:59:38 -63.4 Dark Up 25.7 62.0 Low 06:47:50 - 07:11:26 -7717
Gimple 06:59:34 -63.4 Dark Up 25.7 62.1 Low 06:47:46 - 07:11:22 -7718
Quincy 06:59:34 -63.5 Dark Up 25.6 61.9 Low 06:47:46 - 07:11:22 -7736
Portola 06:59:32 -63.8 Dark Up 25.9 62.1 Low 06:47:44 - 07:11:20 -7755
Dunrhomin 06:58:32 -65.2 Dark Up 36.5 69.2 Up 06:46:44 - 07:10:20 -7780
Reno 06:59:29 -64.3 Dark Up 26.2 62.3 Low 06:47:41 - 07:11:17 -7789
Carson City 06:59:26 -64.6 Dark Up 26.0 62.1 Low 06:47:38 - 07:11:14 -7823
Gardnerville 06:59:25 -64.8 Dark Up 25.9 62.1 Low 06:47:37 - 07:11:13 -7847
Yerington 06:59:23 -65.0 Dark Up 26.3 62.3 Low 06:47:35 - 07:11:11 -7850
Hawthorne 06:59:19 -65.6 Dark Up 26.5 62.4 Low 06:47:31 - 07:11:07 -7900
Lee Vining 06:59:22 -65.9 Dark Up 25.9 61.9 Low 06:47:34 - 07:11:10 -7946
Tonopah 06:59:11 -66.4 Dark Up 27.2 62.8 Low 06:47:23 - 07:10:59 -7960
Bishop 06:59:16 -66.7 Dark Up 26.1 62.0 Low 06:47:28 - 07:11:04 -8010
Beatty 06:59:08 -67.6 Dark Up 27.0 62.4 Low 06:47:20 - 07:10:56 -8071
Indian Springs 06:59:01 -68.2 Dark Up 27.6 62.7 Low 06:47:13 - 07:10:49 -8110
CPSLO 06:59:16 -67.7 Dark Down 23.5 60.2 Low 06:47:28 - 07:11:04 -8162
Henderson 06:58:54 -68.9 Dark Up 27.8 62.7 Low 06:47:06 - 07:10:42 -8164
Patrick 06:58:54 -69.7 Dark Up 28.4 62.8 Low 06:47:06 - 07:10:42 -8229
Laughlin/Bullhead City 06:58:53 -69.8 Dark Up 27.7 62.5 Low 06:47:05 - 07:10:41 -8246
Kingman/Dolan Springs 06:58:47 -69.9 Dark Up 28.1 62.7 Low 06:46:59 - 07:10:35 -8248
Mohave Valley 06:58:47 -70.0 Dark Up 27.6 62.3 Low 06:46:59 - 07:10:35 -8270
Wildwood 06:59:02 -69.5 Dark Up 24.3 60.5 Low 06:47:14 - 07:10:50 -8300
Lake Havasu City 06:58:50 -70.5 Dark Up 27.6 62.2 Low 06:47:02 - 07:10:38 -8308
Parker 06:58:43 -70.8 Dark Up 27.4 62.1 Low 06:46:55 - 07:10:31 -8339
Idyllwild 06:58:54 -70.5 Dark Up 25.5 61.0 Low 06:47:06 - 07:10:42 -8354
Blythe 06:58:45 -71.3 Dark Up 27.0 61.7 Low 06:46:57 - 07:10:33 -8383
George/Scottsdale 06:58:31 -71.7 Dark Up 29.0 62.7 Low 06:46:43 - 07:10:19 -8390
Calipatria 06:58:47 -71.5 Dark Up 26.0 61.2 Low 06:46:59 - 07:10:35 -8418
Yuma 06:58:42 -72.1 Dark Up 26.5 61.3 Low 06:46:54 - 07:10:30 -8463

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 06:53UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +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 2021/02/13 20:47:42 UT

Marc W. Buie, Southwest Research Institute

RECON