RECON: TNO occultation with 126154

Event between (126154) 01YH140 and star GA1080:03266654 with event index number of 1311051

Geocentric closest approach at 2024/01/19 08:55:51 UTC

J2000 position of star is 09:59:04.5 +19:24:32
Equinox of date position of star is 10:00:12.5 +19:18:36
Stellar brightness G=14.0, use SENSEUP=64
Star is 101 degrees from the moon. Moon is 63% illuminated.
TNO apparent brightness V=25.8

[RECON map]
TNO is 37.5 AU from the Sun and 36.6 AU from the Earth.
The TNO is moving 22.1 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 203 seconds.
The 1-sigma cross-track error in the shadow position is 2085 km.
The sky-plane scale is 26572.7 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=524.8 km assuming a 5% albedo -- 2.7 sec chord
Diameter=214.3 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is 5:3EE
 
 
 
 
 
 

Star training set for 126154, (2024/01/19 08:56UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:39.1 +11:50:55  1.3  7.77 106
PPM 100044     10:04:09.2 +21:49:55  5.4  2.69 101
PPM 099985     09:59:02.7 +20:03:18  8.3  0.83 100
PPM 126971     09:59:08.4 +19:21:39  9.5  0.31 101
126154         10:00:24.2 +19:17:35 14.0       101
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 4.4 sigma about the mid-time.
The median site spacing is 22.2 km RECON observability=1.0 and success probability=0.8%
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 08:57:45 -58.6 Dark Up 56.5 151.2 Up 08:42:45 - 09:12:45 8443
Kelowna 08:57:45 -59.0 Dark Up 56.8 150.6 Up 08:42:45 - 09:12:45 8402
Peachland 08:57:45 -59.1 Dark Up 56.8 150.1 Up 08:42:45 - 09:12:45 8384
Summerland 08:57:45 -59.2 Dark Up 57.0 150.1 Up 08:42:45 - 09:12:45 8372
Penticton 08:57:45 -59.3 Dark Up 57.1 150.2 Up 08:42:45 - 09:12:45 8368
Oliver 08:57:44 -59.6 Dark Up 57.4 150.0 Up 08:42:44 - 09:12:44 8334
Anarchist Mountain Observatory 08:57:44 -59.7 Dark Up 57.6 150.1 Up 08:42:44 - 09:12:44 8323
Tonasket 08:57:43 -60.0 Dark Up 57.8 149.8 Up 08:42:43 - 09:12:43 8291
Okanogan 08:57:44 -60.4 Dark Up 58.1 149.3 Up 08:42:44 - 09:12:44 8255
Brewster 08:57:42 -60.7 Dark Up 58.2 148.7 Up 08:42:42 - 09:12:42 8224
Manson/Chelan 08:57:45 -61.0 Dark Up 58.3 147.9 Up 08:42:45 - 09:12:45 8194
Victoria 08:57:55 -61.1 Dark Up 56.5 143.3 Up 08:42:55 - 09:12:55 8178
Entiat 08:57:45 -61.2 Dark Up 58.4 147.6 Up 08:42:45 - 09:12:45 8171
Wenatchee 08:57:45 -61.4 Dark Up 58.6 147.2 Up 08:42:45 - 09:12:45 8143
Ellensburg 08:57:45 -61.9 Dark Up 58.9 146.5 Up 08:42:45 - 09:12:45 8097
Pasco 08:57:40 -62.2 Dark Up 60.0 148.2 Up 08:42:40 - 09:12:40 8061
Yakima 08:57:45 -62.3 Dark Up 59.2 146.1 Up 08:42:45 - 09:12:45 8057
PNWRO 08:57:39 -62.3 Dark Up 60.3 148.4 Up 08:42:39 - 09:12:39 8043
Toppenish/White Swan 08:57:43 -62.4 Dark Up 59.5 146.1 Up 08:42:43 - 09:12:43 8040
Goldendale 08:57:45 -63.0 Dark Up 59.7 144.9 Up 08:42:45 - 09:12:45 7974
The Dalles 08:57:46 -63.3 Dark Up 59.8 144.1 Up 08:42:46 - 09:12:46 7943
Niwot 08:56:43 -60.1 Dark Down 69.2 173.4 Up 08:41:43 - 09:11:43 7905
Maupin 08:57:45 -63.7 Dark Up 60.2 143.8 Up 08:42:45 - 09:12:45 7904
SwRI 08:56:44 -60.2 Dark Down 69.3 173.1 Up 08:41:44 - 09:11:44 7891
Redmond 08:57:45 -64.6 Dark Up 60.9 142.7 Up 08:42:45 - 09:12:45 7811
Sisters 08:57:46 -64.6 Dark Up 60.7 142.0 Up 08:42:46 - 09:12:46 7803
Bend 08:57:45 -64.8 Dark Up 61.0 142.2 Up 08:42:45 - 09:12:45 7786
Oregon Observatory 08:57:44 -65.0 Dark Up 61.0 141.8 Up 08:42:44 - 09:12:44 7766
La Pine/Gilchrist 08:57:45 -65.2 Dark Up 61.2 141.5 Up 08:42:45 - 09:12:45 7743
North Lake 08:57:43 -65.4 Dark Up 61.8 142.0 Up 08:42:43 - 09:12:43 7715
Paisley 08:57:40 -65.8 Dark Up 62.4 142.0 Up 08:42:40 - 09:12:40 7670
Lakeview 08:57:40 -66.2 Dark Up 62.9 141.7 Up 08:42:40 - 09:12:40 7624
Klamath Falls 08:57:43 -66.6 Dark Up 62.2 139.2 Up 08:42:43 - 09:12:43 7589
Cedarville 08:57:38 -66.7 Dark Up 63.5 141.2 Up 08:42:38 - 09:12:38 7562
Fall River/Burney 08:57:42 -67.5 Dark Up 63.2 138.4 Up 08:42:42 - 09:12:42 7480
Susanville 08:57:38 -67.9 Dark Up 64.1 138.9 Up 08:42:38 - 09:12:38 7436
Gimple 08:57:38 -68.2 Dark Up 64.2 138.1 Up 08:42:38 - 09:12:38 7402
Greenville 08:57:40 -68.2 Dark Up 64.1 138.0 Up 08:42:40 - 09:12:40 7400
Portola 08:57:38 -68.3 Dark Up 64.6 138.4 Up 08:42:38 - 09:12:38 7380
Quincy 08:57:39 -68.4 Dark Up 64.3 137.7 Up 08:42:39 - 09:12:39 7379
Reno 08:57:34 -68.3 Dark Up 65.1 139.2 Up 08:42:34 - 09:12:34 7371
Carson City 08:57:33 -68.6 Dark Up 65.4 138.7 Up 08:42:33 - 09:12:33 7335
Yerington 08:57:32 -68.5 Dark Up 65.9 139.7 Up 08:42:32 - 09:12:32 7334
Gardnerville 08:57:33 -68.8 Dark Up 65.6 138.5 Up 08:42:33 - 09:12:33 7312
Hawthorne 08:57:30 -68.6 Dark Up 66.5 140.0 Up 08:42:30 - 09:12:30 7302
Tonopah 08:57:24 -68.3 Dark Up 67.6 142.2 Up 08:42:24 - 09:12:24 7298
Lee Vining 08:57:31 -69.3 Dark Up 66.7 138.2 Up 08:42:31 - 09:12:31 7230
Indian Springs 08:57:16 -68.6 Dark Up 69.5 143.2 Up 08:42:16 - 09:12:16 7196
Beatty 08:57:21 -69.0 Dark Up 68.7 141.4 Up 08:42:21 - 09:12:21 7194
Bishop 08:57:27 -69.5 Dark Up 67.5 138.7 Up 08:42:27 - 09:12:27 7191
Henderson 08:57:12 -68.6 Dark Up 70.2 144.0 Up 08:42:12 - 09:12:12 7164
Patrick 08:57:08 -68.3 Dark Up 71.2 145.7 Up 08:42:08 - 09:12:08 7138
DCO 08:57:05 -68.1 Dark Up 71.8 147.0 Up 08:42:05 - 09:12:05 7132
Kingman/Dolan Springs 08:57:08 -68.6 Dark Up 71.3 144.8 Up 08:42:08 - 09:12:08 7109
Searchlight/Boulder City 08:57:12 -68.9 Dark Up 70.7 143.2 Up 08:42:12 - 09:12:12 7108
Laughlin/Bullhead City 08:57:10 -68.9 Dark Up 71.1 143.5 Up 08:42:10 - 09:12:10 7090
Mohave Valley 08:57:10 -69.1 Dark Up 71.3 143.0 Up 08:42:10 - 09:12:10 7062
George/Scottsdale 08:56:57 -68.0 Dark Up 73.6 148.1 Up 08:41:57 - 09:11:57 7037
Lake Havasu City 08:57:08 -69.2 Dark Up 71.8 142.9 Up 08:42:08 - 09:12:08 7030
Parker 08:57:06 -69.4 Dark Up 72.1 142.3 Up 08:42:06 - 09:12:06 6995
Blythe 08:57:07 -69.9 Dark Up 72.3 140.5 Up 08:42:07 - 09:12:07 6931
CPSLO 08:57:33 -72.2 Dark Up 67.7 130.7 Up 08:42:33 - 09:12:33 6911
Idyllwild 08:57:16 -71.2 Dark Up 71.1 135.7 Up 08:42:16 - 09:12:16 6872
Calipatria 08:57:10 -70.8 Dark Up 72.2 137.2 Up 08:42:10 - 09:12:10 6849
Wildwood 08:57:23 -72.1 Dark Up 69.7 132.4 Up 08:42:23 - 09:12:23 6848
Yuma 08:57:06 -70.5 Dark Up 73.0 138.5 Up 08:42:06 - 09:12:06 6836

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 126154, (2024/01/19 08:56UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:22.0 +11:58:02  1.3  7.77 106
PPM 100044     10:02:48.9 +21:56:57  5.4  2.69 101
PPM 099985     09:57:42.8 +20:10:14  8.3  0.83 100
PPM 126971     09:57:48.7 +19:28:35  9.5  0.31 101
126154         09:59:04.5 +19:24:32 14.0       101
Positions are for J2000

Event circumstances last updated at 2020/07/10 21:02:54 UT

Marc W. Buie, Southwest Research Institute

RECON