RECON: TNO occultation with 119473

Event between (119473) 01UO18 and star GA1160:01369886 with event index number of 1767926

Geocentric closest approach at 2027/11/14 07:45:53 UTC

J2000 position of star is 05:32:30.9 +26:01:56
Equinox of date position of star is 05:33:54.2 +26:02:48
Stellar brightness G=14.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 30 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=22.7

[RECON map]
TNO is 28.3 AU from the Sun and 27.5 AU from the Earth.
The TNO is moving 19.3 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 393 seconds.
The 1-sigma cross-track error in the shadow position is 1476 km.
The sky-plane scale is 19914.4 km/arcsec.

The TNO has an absolute magnitude Hv=8.1
Diameter=142.6 km assuming a 5% albedo -- 7.4 sec chord
Diameter=58.2 km assuming a 30% albedo -- 3.0 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 119473, (2027/11/14 07:46UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:31.4 +16:33:48  0.8 16.24  19
Alnath         05:28:03.4 +28:37:43  1.6  2.92  28
PPM 094572     05:38:53.4 +26:56:21  5.6  1.37  31
PPM 094544     05:37:46.7 +26:17:01  8.3  0.83  31
PPM 094470     05:34:41.2 +25:54:42  9.3  0.17  30
119473         05:34:14.6 +26:03:01 14.9        30
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 2.3 sigma about the mid-time.
The median site spacing is 29.9 km RECON observability=1.0 and success probability=28.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 07:47:51 -57.5 Dark Up 54.6 121.5 Up 07:32:51 - 08:02:51 -530
Sleaford 07:47:02 -54.2 Dark Up 60.2 143.7 Up 07:32:02 - 08:02:02 -581
Kelowna 07:47:50 -58.3 Dark Up 55.5 121.6 Up 07:32:50 - 08:02:50 -623
Peachland 07:47:51 -58.4 Dark Up 55.4 121.1 Up 07:32:51 - 08:02:51 -629
Summerland 07:47:51 -58.6 Dark Up 55.5 121.0 Up 07:32:51 - 08:02:51 -645
Penticton 07:47:51 -58.6 Dark Up 55.6 121.1 Up 07:32:51 - 08:02:51 -653
Victoria 07:48:06 -59.6 Dark Up 53.9 115.3 Up 07:33:06 - 08:03:06 -683
Oliver 07:47:52 -59.0 Dark Up 55.8 120.7 Up 07:32:52 - 08:02:52 -687
Anarchist Mountain Observatory 07:47:52 -59.2 Dark Up 56.0 120.7 Up 07:32:52 - 08:02:52 -707
Tonasket 07:47:53 -59.5 Dark Up 56.1 120.2 Up 07:32:53 - 08:02:53 -736
Okanogan 07:47:54 -59.8 Dark Up 56.2 119.6 Up 07:32:54 - 08:02:54 -766
Brewster 07:47:55 -60.1 Dark Up 56.2 119.0 Up 07:32:55 - 08:02:55 -789
Manson/Chelan 07:47:57 -60.3 Dark Up 56.1 118.3 Up 07:32:57 - 08:02:57 -803
Wenatchee 07:47:58 -60.8 Dark Up 56.3 117.5 Up 07:32:58 - 08:02:58 -847
Ellensburg 07:48:00 -61.2 Dark Up 56.3 116.6 Up 07:33:00 - 08:03:00 -883
Yakima 07:48:01 -61.6 Dark Up 56.5 116.1 Up 07:33:01 - 08:03:01 -923
Toppenish/White Swan 07:48:01 -61.8 Dark Up 56.7 116.0 Up 07:33:01 - 08:03:01 -948
Goldendale 07:48:04 -62.4 Dark Up 56.7 114.7 Up 07:33:04 - 08:03:04 -995
The Dalles 07:48:05 -62.6 Dark Up 56.5 114.0 Up 07:33:05 - 08:03:05 -1010
PNWRO 07:47:57 -62.1 Dark Up 57.8 117.3 Up 07:32:57 - 08:02:57 -1011
Maupin 07:48:06 -63.0 Dark Up 56.8 113.6 Up 07:33:06 - 08:03:06 -1054
Sisters 07:48:10 -63.9 Dark Up 56.8 111.8 Up 07:33:10 - 08:03:10 -1132
Bend 07:48:09 -64.1 Dark Up 57.1 111.7 Up 07:33:09 - 08:03:09 -1161
Oregon Observatory 07:48:10 -64.3 Dark Up 57.0 111.3 Up 07:33:10 - 08:03:10 -1176
North Lake 07:48:10 -64.9 Dark Up 57.6 111.0 Up 07:33:10 - 08:03:10 -1250
Chiloquin 07:48:14 -65.6 Dark Up 57.2 109.0 Up 07:33:14 - 08:03:14 -1300
Klamath Falls 07:48:15 -66.0 Dark Up 57.4 108.6 Up 07:33:15 - 08:03:15 -1336
Lakeview 07:48:10 -66.0 Dark Up 58.4 110.0 Up 07:33:10 - 08:03:10 -1368
Cedarville 07:48:11 -66.7 Dark Up 58.7 109.2 Up 07:33:11 - 08:03:11 -1439
Fall River/Burney 07:48:16 -67.1 Dark Up 58.0 107.2 Up 07:33:16 - 08:03:16 -1464
Susanville 07:48:15 -67.8 Dark Up 58.7 107.0 Up 07:33:15 - 08:03:15 -1544
Greenville 07:48:16 -68.0 Dark Up 58.6 106.2 Up 07:33:16 - 08:03:16 -1566
Gimple 07:48:16 -68.1 Dark Up 58.7 106.3 Up 07:33:16 - 08:03:16 -1568
Quincy 07:48:16 -68.3 Dark Up 58.7 105.9 Up 07:33:16 - 08:03:16 -1587
Portola 07:48:15 -68.4 Dark Up 59.0 106.2 Up 07:33:15 - 08:03:15 -1609
Reno 07:48:13 -68.6 Dark Up 59.6 106.4 Up 07:33:13 - 08:03:13 -1650
Carson City 07:48:14 -69.0 Dark Up 59.7 105.8 Up 07:33:14 - 08:03:14 -1687
Gardnerville 07:48:14 -69.2 Dark Up 59.8 105.5 Up 07:33:14 - 08:03:14 -1714
Yerington 07:48:12 -69.1 Dark Up 60.2 106.2 Up 07:33:12 - 08:03:12 -1720
Hawthorne 07:48:10 -69.6 Dark Up 60.8 105.9 Up 07:33:10 - 08:03:10 -1779
Dunrhomin 07:47:02 -64.2 Dark Up 69.2 127.4 Up 07:32:02 - 08:02:02 -1818
Lee Vining 07:48:13 -70.2 Dark Up 60.5 104.5 Up 07:33:13 - 08:03:13 -1828
CU-SBO 07:47:02 -64.5 Dark Up 69.2 126.7 Up 07:32:02 - 08:02:02 -1845
Tonopah 07:48:06 -69.9 Dark Up 61.9 106.5 Up 07:33:06 - 08:03:06 -1854
Bishop 07:48:12 -70.7 Dark Up 61.2 104.1 Up 07:33:12 - 08:03:12 -1905
Beatty 07:48:06 -70.9 Dark Up 62.6 104.8 Up 07:33:06 - 08:03:06 -1985
Indian Springs 07:48:02 -71.0 Dark Up 63.5 105.3 Up 07:33:02 - 08:03:02 -2039
Henderson 07:48:00 -71.4 Dark Up 64.2 104.9 Up 07:33:00 - 08:03:00 -2108
Patrick 07:47:57 -71.7 Dark Up 65.2 104.8 Up 07:32:57 - 08:02:57 -2195
Laughlin/Bullhead City 07:48:00 -72.1 Dark Up 64.7 103.6 Up 07:33:00 - 08:03:00 -2209
Kingman/Dolan Springs 07:47:58 -71.9 Dark Up 65.1 104.1 Up 07:32:58 - 08:02:58 -2215
Mohave Valley 07:48:00 -72.4 Dark Up 64.8 103.0 Up 07:33:00 - 08:03:00 -2238
Wildwood 07:48:18 -74.0 Dark Up 61.7 98.0 Up 07:33:18 - 08:03:18 -2246
Lake Havasu City 07:48:00 -72.7 Dark Up 65.1 102.4 Up 07:33:00 - 08:03:00 -2285
Idyllwild 07:48:11 -74.0 Dark Up 63.3 98.8 Up 07:33:11 - 08:03:11 -2322
Parker 07:48:00 -73.0 Dark Up 65.2 101.7 Up 07:33:00 - 08:03:00 -2323
Calipatria 07:48:07 -74.3 Dark Up 64.4 98.5 Up 07:33:07 - 08:03:07 -2410
George/Scottsdale 07:47:51 -72.5 Dark Up 67.2 103.1 Up 07:32:51 - 08:02:51 -2410
Yuma 07:48:04 -74.4 Dark Up 65.2 98.3 Up 07:33:04 - 08:03:04 -2473

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 119473, (2027/11/14 07:46UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 16.24  19
Alnath         05:26:17.6 +28:36:23  1.6  2.92  28
PPM 094572     05:37:08.9 +26:55:28  5.6  1.37  31
PPM 094544     05:36:02.7 +26:16:05  8.3  0.83  31
PPM 094470     05:32:57.6 +25:53:38  9.3  0.17  30
119473         05:32:30.9 +26:01:56 14.9        30
Positions are for J2000

Event circumstances last updated at 2022/05/17 23:04:10 UT

Marc W. Buie, Southwest Research Institute

RECON