RECON: TNO occultation with 15874

Event between (15874) 96TL66 and star GA0940:00826527 with event index number of 1230057

Geocentric closest approach at 2022/11/21 06:40:15 UTC

J2000 position of star is 05:36:57.5 +05:17:38
Equinox of date position of star is 05:38:08.5 +05:18:22
Stellar brightness G=15.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 119 degrees from the moon. Moon is 9% illuminated.
TNO apparent brightness V=21.4

[RECON map]
TNO is 39.0 AU from the Sun and 38.1 AU from the Earth.
The TNO is moving 22.6 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 102 seconds.
The 1-sigma cross-track error in the shadow position is 1549 km.
The sky-plane scale is 27643.6 km/arcsec.

The TNO has an absolute magnitude Hv=5.5
Diameter=487.5 km assuming a 5% albedo -- 21.5 sec chord
Diameter=199.0 km assuming a 30% albedo -- 8.8 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 15874, (2022/11/21 06:40UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:24.7 +07:24:34  0.4  4.99 115
Bellatrix      05:26:21.6 +06:22:07  1.6  3.13 122
PPM 149151     05:35:56.7 +05:40:29  6.4  0.67 120
PPM 149190     05:37:04.4 +05:02:30  8.2  0.38 119
PPM 149209     05:37:44.8 +05:32:01  8.9  0.25 119
15874          05:38:10.7 +05:18:23 15.3       119
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 20.2 km RECON observability=1.0 and success probability=3.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 06:41:18 -56.6 Dark Down 31.7 125.6 Up 06:32:18 - 06:50:19 5080
Kelowna 06:41:19 -57.6 Dark Down 32.6 126.1 Up 06:32:19 - 06:50:20 5017
Peachland 06:41:20 -57.6 Dark Down 32.5 125.7 Up 06:32:20 - 06:50:21 5016
Victoria 06:41:31 -57.4 Dark Down 31.2 121.6 Up 06:32:31 - 06:50:32 5013
Summerland 06:41:20 -57.8 Dark Down 32.7 125.8 Up 06:32:20 - 06:50:21 5006
Penticton 06:41:20 -57.9 Dark Down 32.8 125.8 Up 06:32:20 - 06:50:21 4999
Oliver 06:41:21 -58.2 Dark Down 33.0 125.7 Up 06:32:21 - 06:50:22 4979
Anarchist Mountain Observatory 06:41:22 -58.4 Dark Down 33.2 125.8 Up 06:32:21 - 06:50:22 4965
Tonasket 06:41:22 -58.6 Dark Down 33.3 125.5 Up 06:32:22 - 06:50:23 4948
Okanogan 06:41:25 -58.9 Dark Down 33.4 125.2 Up 06:32:24 - 06:50:25 4931
Brewster 06:41:26 -59.0 Dark Down 33.5 124.9 Up 06:32:25 - 06:50:26 4918
Manson/Chelan 06:41:28 -59.1 Dark Down 33.4 124.4 Up 06:32:27 - 06:50:28 4913
Wenatchee 06:41:30 -59.5 Dark Down 33.6 124.0 Up 06:32:29 - 06:50:30 4887
Sleaford 06:40:41 -57.8 Dark Down 37.2 141.7 Up 06:31:40 - 06:49:41 4886
Ellensburg 06:41:31 -59.7 Dark Down 33.7 123.5 Up 06:32:31 - 06:50:32 4866
Yakima 06:41:33 -60.1 Dark Down 33.9 123.3 Up 06:32:32 - 06:50:33 4841
Toppenish/White Swan 06:41:33 -60.3 Dark Down 34.1 123.3 Up 06:32:33 - 06:50:34 4824
Goldendale 06:41:36 -60.6 Dark Down 34.2 122.6 Up 06:32:35 - 06:50:36 4798
The Dalles 06:41:38 -60.7 Dark Down 34.1 122.1 Up 06:32:37 - 06:50:38 4791
PNWRO 06:41:31 -61.2 Dark Down 35.2 124.6 Up 06:32:30 - 06:50:31 4770
Maupin 06:41:38 -61.0 Dark Down 34.4 122.0 Up 06:32:38 - 06:50:39 4762
Sisters 06:41:43 -61.6 Dark Down 34.6 121.0 Up 06:32:42 - 06:50:43 4715
Bend 06:41:43 -61.9 Dark Down 34.8 121.1 Up 06:32:42 - 06:50:43 4694
Oregon Observatory 06:41:44 -62.0 Dark Down 34.9 120.9 Up 06:32:43 - 06:50:44 4686
North Lake 06:41:45 -62.7 Dark Down 35.5 121.0 Up 06:32:44 - 06:50:45 4631
Chiloquin 06:41:49 -62.8 Dark Down 35.3 119.7 Up 06:32:49 - 06:50:50 4606
Klamath Falls 06:41:50 -63.1 Dark Down 35.5 119.6 Up 06:32:49 - 06:50:50 4581
Lakeview 06:41:47 -63.8 Dark Down 36.4 120.9 Up 06:32:46 - 06:50:47 4547
Cedarville 06:41:48 -64.4 Dark Down 36.9 120.7 Up 06:32:48 - 06:50:49 4498
Fall River/Burney 06:41:53 -64.2 Dark Down 36.3 119.2 Up 06:32:52 - 06:50:53 4490
Susanville 06:41:53 -65.1 Dark Down 37.1 119.5 Up 06:32:53 - 06:50:54 4430
Greenville 06:41:55 -65.1 Dark Down 37.1 119.1 Up 06:32:54 - 06:50:55 4416
Gimple 06:41:55 -65.2 Dark Down 37.1 119.1 Up 06:32:54 - 06:50:55 4414
Quincy 06:41:55 -65.3 Dark Down 37.2 118.9 Up 06:32:55 - 06:50:56 4401
Portola 06:41:55 -65.6 Dark Down 37.6 119.3 Up 06:32:54 - 06:50:55 4382
Reno 06:41:54 -66.1 Dark Down 38.1 119.7 Up 06:32:54 - 06:50:55 4348
Carson City 06:41:55 -66.4 Dark Down 38.3 119.5 Up 06:32:55 - 06:50:56 4321
Gardnerville 06:41:56 -66.6 Dark Down 38.5 119.4 Up 06:32:55 - 06:50:56 4302
Yerington 06:41:54 -66.9 Dark Down 38.8 120.0 Up 06:32:54 - 06:50:55 4293
Hawthorne 06:41:54 -67.5 Dark Down 39.4 120.1 Up 06:32:53 - 06:50:54 4246
Lee Vining 06:41:57 -67.7 Dark Down 39.4 119.3 Up 06:32:56 - 06:50:57 4215
Tonopah 06:41:52 -68.6 Dark Down 40.6 121.1 Up 06:32:51 - 06:50:52 4178
Bishop 06:41:57 -68.5 Dark Down 40.2 119.5 Up 06:32:56 - 06:50:57 4152
Beatty 06:41:54 -69.7 Dark Down 41.5 120.7 Up 06:32:53 - 06:50:54 4078
Dunrhomin 06:41:11 -69.6 Dark Down 46.5 135.7 Up 06:32:10 - 06:50:11 4057
CU-SBO 06:41:11 -69.9 Dark Down 46.6 135.4 Up 06:32:11 - 06:50:12 4040
Indian Springs 06:41:52 -70.5 Dark Down 42.4 121.5 Up 06:32:51 - 06:50:52 4027
Henderson 06:41:51 -71.2 Dark Down 43.2 121.8 Up 06:32:51 - 06:50:52 3967
Wildwood 06:42:07 -70.9 Dark Down 41.6 116.9 Up 06:33:07 - 06:51:08 3901
Patrick 06:41:50 -72.2 Dark Down 44.3 122.4 Up 06:32:49 - 06:50:50 3890
Laughlin/Bullhead City 06:41:53 -72.1 Dark Down 43.9 121.5 Up 06:32:52 - 06:50:53 3887
Kingman/Dolan Springs 06:41:51 -72.4 Dark Down 44.3 122.0 Up 06:32:51 - 06:50:52 3877
Mohave Valley 06:41:53 -72.4 Dark Down 44.1 121.3 Up 06:32:53 - 06:50:54 3865
Lake Havasu City 06:41:55 -72.8 Dark Down 44.5 121.2 Up 06:32:54 - 06:50:55 3827
Idyllwild 06:42:03 -72.2 Dark Down 43.1 118.3 Up 06:33:02 - 06:51:03 3826
Parker 06:41:55 -73.1 Dark Down 44.7 120.9 Up 06:32:54 - 06:50:55 3797
Calipatria 06:42:01 -73.3 Dark Down 44.3 118.9 Up 06:33:01 - 06:51:02 3745
George/Scottsdale 06:41:49 -74.5 Dark Down 46.6 123.0 Up 06:32:49 - 06:50:50 3701
Yuma 06:42:00 -74.1 Dark Down 45.2 119.3 Up 06:32:59 - 06:51:00 3686

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 15874, (2022/11/21 06:40UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  4.99 115
Bellatrix      05:25:07.8 +06:20:58  1.6  3.13 122
PPM 149151     05:34:43.3 +05:39:40  6.4  0.67 120
PPM 149190     05:35:51.4 +05:01:43  8.2  0.38 119
PPM 149209     05:36:31.4 +05:31:15  8.9  0.25 119
15874          05:36:57.5 +05:17:38 15.3       119
Positions are for J2000

Event circumstances last updated at 2022/03/17 00:53:58 UT

Marc W. Buie, Southwest Research Institute

RECON