RECON: TNO occultation with 148780

Event between (148780) Altjira and star GA1180:01282086 with event index number of 1378208

Geocentric closest approach at 2024/11/11 08:20:21 UTC

J2000 position of star is 05:14:42.2 +28:13:05
Equinox of date position of star is 05:15:57.5 +28:14:23
Stellar brightness G=15.6, use SENSEUP=128
Star is 94 degrees from the moon. Moon is 73% illuminated.
TNO apparent brightness V=22.5

[RECON map]
TNO is 46.2 AU from the Sun and 45.4 AU from the Earth.
The TNO is moving 21.8 km/sec on the sky relative to the star, or, 2.4 arcsec/hr.
The 1-sigma error in the time of the event is 647 seconds.
The 1-sigma cross-track error in the shadow position is 2210 km.
The sky-plane scale is 32897.7 km/arcsec.

The TNO has an absolute magnitude Hv=5.8
Diameter=416.9 km assuming a 5% albedo -- 19.1 sec chord
Diameter=170.2 km assuming a 30% albedo -- 7.8 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 148780, (2024/11/11 08:20UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:21.0 +16:33:27  0.8 14.73  83
Alnath         05:27:51.9 +28:37:35  1.6  2.58  96
PPM 094294     05:22:33.2 +27:58:48  6.3  1.41  95
PPM 094235     05:18:50.0 +28:55:48  7.4  0.89  94
PPM 094186     05:15:30.9 +28:15:05  9.6  0.17  93
148780         05:16:16.1 +28:14:41 15.6        94
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 1.4 sigma about the mid-time.
The median site spacing is 24.6 km RECON observability=1.0 and success probability=24.1%
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 08:21:31 -56.4 Dark Up 62.5 135.2 Up 08:06:31 - 08:36:31 943
Kelowna 08:21:32 -56.8 Dark Up 62.7 134.4 Up 08:06:32 - 08:36:32 906
Summerland 08:21:33 -57.0 Dark Up 62.8 133.8 Up 08:06:33 - 08:36:33 883
Penticton 08:21:33 -57.1 Dark Up 62.9 133.8 Up 08:06:33 - 08:36:33 874
Oliver 08:21:33 -57.4 Dark Up 63.2 133.3 Up 08:06:33 - 08:36:33 839
Victoria 08:21:46 -58.7 Dark Up 61.7 126.4 Up 08:06:46 - 08:36:46 829
Anarchist Mountain Observatory 08:21:33 -57.5 Dark Up 63.4 133.4 Up 08:06:33 - 08:36:33 819
Tonasket 08:21:34 -57.9 Dark Up 63.6 132.9 Up 08:06:34 - 08:36:34 789
Okanogan 08:21:34 -58.2 Dark Up 63.7 132.1 Up 08:06:34 - 08:36:34 757
Brewster 08:21:36 -58.5 Dark Up 63.8 131.4 Up 08:06:36 - 08:36:36 732
Manson/Chelan 08:21:37 -58.8 Dark Up 63.8 130.5 Up 08:06:37 - 08:36:37 716
Entiat 08:21:38 -59.0 Dark Up 63.9 130.0 Up 08:06:38 - 08:36:38 695
Wenatchee 08:21:38 -59.3 Dark Up 64.0 129.4 Up 08:06:38 - 08:36:38 670
Ellensburg 08:21:40 -59.7 Dark Up 64.1 128.4 Up 08:06:40 - 08:36:40 632
Yakima 08:21:40 -60.1 Dark Up 64.4 127.8 Up 08:06:40 - 08:36:40 590
Toppenish/White Swan 08:21:40 -60.3 Dark Up 64.6 127.7 Up 08:06:40 - 08:36:40 566
Pasco 08:21:36 -60.1 Dark Up 65.3 129.5 Up 08:06:36 - 08:36:36 535
Goldendale 08:21:42 -60.9 Dark Up 64.7 126.1 Up 08:06:42 - 08:36:42 515
PNWRO 08:21:36 -60.3 Dark Up 65.6 129.5 Up 08:06:36 - 08:36:36 506
The Dalles 08:21:44 -61.2 Dark Up 64.6 125.1 Up 08:06:44 - 08:36:44 498
Maupin 08:21:44 -61.5 Dark Up 64.9 124.6 Up 08:06:44 - 08:36:44 453
Sisters 08:21:47 -62.5 Dark Up 65.1 122.2 Up 08:06:47 - 08:36:47 370
Redmond 08:21:46 -62.4 Dark Up 65.4 122.8 Up 08:06:46 - 08:36:46 361
Bend 08:21:46 -62.7 Dark Up 65.4 122.2 Up 08:06:46 - 08:36:46 341
Oregon Observatory 08:21:47 -62.9 Dark Up 65.4 121.7 Up 08:06:47 - 08:36:47 326
La Pine/Gilchrist 08:21:48 -63.1 Dark Up 65.5 121.2 Up 08:06:48 - 08:36:48 305
North Lake 08:21:46 -63.3 Dark Up 66.1 121.3 Up 08:06:46 - 08:36:46 251
Paisley 08:21:46 -63.8 Dark Up 66.6 120.8 Up 08:06:46 - 08:36:46 187
Klamath Falls 08:21:51 -64.5 Dark Up 66.0 118.0 Up 08:06:51 - 08:36:51 158
Lakeview 08:21:46 -64.2 Dark Up 67.0 120.0 Up 08:06:46 - 08:36:46 131
Cedarville 08:21:46 -64.8 Dark Up 67.4 119.0 Up 08:06:46 - 08:36:46 59
Fall River/Burney 08:21:51 -65.5 Dark Up 66.8 116.2 Up 08:06:51 - 08:36:51 28
Susanville 08:21:49 -65.9 Dark Up 67.6 115.9 Up 08:06:49 - 08:36:49 -50
Greenville 08:21:51 -66.3 Dark Up 67.5 114.8 Up 08:06:51 - 08:36:51 -75
Gimple 08:21:50 -66.3 Dark Up 67.6 115.0 Up 08:06:50 - 08:36:50 -76
Quincy 08:21:51 -66.5 Dark Up 67.6 114.4 Up 08:06:51 - 08:36:51 -96
Portola 08:21:49 -66.5 Dark Up 68.0 114.8 Up 08:06:49 - 08:36:49 -117
Reno 08:21:47 -66.5 Dark Up 68.5 115.1 Up 08:06:47 - 08:36:47 -156
Carson City 08:21:48 -66.8 Dark Up 68.7 114.3 Up 08:06:48 - 08:36:48 -194
Gardnerville 08:21:48 -67.0 Dark Up 68.8 113.8 Up 08:06:48 - 08:36:48 -221
Yerington 08:21:46 -66.8 Dark Up 69.2 114.8 Up 08:06:46 - 08:36:46 -225
Niwot 08:20:52 -59.4 Dark Up 76.5 149.7 Up 08:05:52 - 08:35:52 -260
SwRI 08:20:53 -59.5 Dark Up 76.6 149.2 Up 08:05:53 - 08:35:53 -271
Hawthorne 08:21:44 -67.0 Dark Up 69.8 114.4 Up 08:06:44 - 08:36:44 -283
Lee Vining 08:21:47 -67.7 Dark Up 69.7 112.3 Up 08:06:47 - 08:36:47 -336
Tonopah 08:21:40 -66.9 Dark Up 71.0 115.4 Up 08:06:40 - 08:36:40 -355
Bishop 08:21:45 -68.0 Dark Up 70.4 111.8 Up 08:06:45 - 08:36:45 -411
Beatty 08:21:39 -67.7 Dark Up 71.8 113.0 Up 08:06:39 - 08:36:39 -486
Indian Springs 08:21:35 -67.5 Dark Up 72.7 113.8 Up 08:06:35 - 08:36:35 -537
CPSLO 08:21:56 -70.6 Dark Up 69.4 103.7 Up 08:06:56 - 08:36:56 -595
Henderson 08:21:33 -67.6 Dark Up 73.4 113.3 Up 08:06:33 - 08:36:33 -604
Searchlight/Boulder City 08:21:34 -68.0 Dark Up 73.7 111.6 Up 08:06:34 - 08:36:34 -667
Patrick 08:21:29 -67.5 Dark Up 74.5 113.1 Up 08:06:29 - 08:36:29 -687
Laughlin/Bullhead City 08:21:32 -68.0 Dark Up 74.1 111.2 Up 08:06:32 - 08:36:32 -704
Kingman/Dolan Springs 08:21:30 -67.7 Dark Up 74.4 112.1 Up 08:06:30 - 08:36:30 -709
DCO 08:21:27 -67.3 Dark Up 75.1 113.3 Up 08:06:27 - 08:36:27 -729
Mohave Valley 08:21:33 -68.2 Dark Up 74.2 110.3 Up 08:06:33 - 08:36:33 -734
Wildwood 08:21:49 -70.9 Dark Up 71.3 102.6 Up 08:06:49 - 08:36:49 -761
Lake Havasu City 08:21:32 -68.4 Dark Up 74.5 109.3 Up 08:06:32 - 08:36:32 -781
Parker 08:21:32 -68.6 Dark Up 74.6 108.2 Up 08:06:32 - 08:36:32 -820
Idyllwild 08:21:42 -70.2 Dark Up 72.8 103.6 Up 08:06:42 - 08:36:42 -829
Blythe 08:21:34 -69.2 Dark Up 74.6 105.9 Up 08:06:34 - 08:36:34 -873
George/Scottsdale 08:21:23 -67.5 Dark Up 76.7 110.5 Up 08:06:23 - 08:36:23 -897
Calipatria 08:21:38 -70.1 Dark Up 73.9 103.0 Up 08:06:38 - 08:36:38 -913
Yuma 08:21:35 -69.9 Dark Up 74.8 102.6 Up 08:06:35 - 08:36:35 -973

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 148780, (2024/11/11 08:20UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 14.73  83
Alnath         05:26:17.5 +28:36:23  1.6  2.58  96
PPM 094294     05:20:59.3 +27:57:25  6.3  1.41  95
PPM 094235     05:17:15.5 +28:54:17  7.4  0.89  94
PPM 094186     05:13:57.0 +28:13:27  9.6  0.17  93
148780         05:14:42.2 +28:13:05 15.6        93
Positions are for J2000

Event circumstances last updated at 2019/12/10 23:11:14 UT

Marc W. Buie, Southwest Research Institute

RECON