RECON: TNO occultation with 15VW165

Event between 15VW165 and star GA1100:00581145 with event index number of 1436273

Geocentric closest approach at 2024/12/22 09:04:55 UTC

J2000 position of star is 04:21:30.8 +20:29:58
Equinox of date position of star is 04:22:39.4 +20:32:40
Stellar brightness G=13.9, use SENSEUP=64
Star is 108 degrees from the moon. Moon is 55% illuminated.
TNO apparent brightness V=23.0

[RECON map]
TNO is 29.7 AU from the Sun and 28.8 AU from the Earth.
The TNO is moving 22.2 km/sec on the sky relative to the star, or, 3.8 arcsec/hr.
The 1-sigma error in the time of the event is 231 seconds.
The 1-sigma cross-track error in the shadow position is 1680 km.
The sky-plane scale is 20865.0 km/arcsec.

The TNO has an absolute magnitude Hv=8.2
Diameter=134.9 km assuming a 5% albedo -- 6.1 sec chord
Diameter=55.1 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is 1:1
 
 
 
 
 
 

Star training set for 15VW165, (2024/12/22 09:05UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:21.4 +16:33:28  0.8  5.25 105
44Zet Per      03:55:42.5 +31:57:21  2.8 12.93 111
PPM 093481     04:25:00.9 +21:02:17  5.9  0.68 107
PPM 093455     04:23:51.1 +20:52:42  7.6  0.38 108
PPM 093436     04:22:11.7 +20:30:25 11.0  0.19 108
15VW165        04:22:59.0 +20:33:26 13.9       108
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 3.9 sigma about the mid-time.
The median site spacing is 24.0 km RECON observability=1.0 and success probability=18.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 09:02:32 -60.5 Dark Up 45.6 244.2 Up 08:47:32 - 09:17:32 -1372
Summerland 09:02:32 -60.9 Dark Up 45.9 244.2 Up 08:47:32 - 09:17:32 -1403
Penticton 09:02:31 -60.9 Dark Up 45.8 244.4 Up 08:47:31 - 09:17:31 -1409
Okanagan Falls 09:02:31 -61.1 Dark Up 45.9 244.5 Up 08:47:31 - 09:17:31 -1427
Oliver 09:02:30 -61.2 Dark Up 46.0 244.7 Up 08:47:30 - 09:17:30 -1443
Anarchist Mountain Observatory 09:02:30 -61.3 Dark Up 46.0 245.1 Up 08:47:30 - 09:17:30 -1457
Oroville 09:02:30 -61.4 Dark Up 46.0 245.0 Up 08:47:30 - 09:17:30 -1465
Tonasket 09:02:29 -61.6 Dark Up 46.1 245.3 Up 08:47:29 - 09:17:29 -1488
Okanogan 09:02:29 -61.9 Dark Up 46.4 245.4 Up 08:47:29 - 09:17:29 -1522
Brewster 09:02:29 -62.2 Dark Up 46.6 245.5 Up 08:47:29 - 09:17:29 -1551
Manson/Chelan 09:02:30 -62.5 Dark Up 46.9 245.3 Up 08:47:30 - 09:17:30 -1575
Entiat 09:02:29 -62.7 Dark Up 47.0 245.4 Up 08:47:29 - 09:17:29 -1597
Wenatchee 09:02:29 -63.0 Dark Up 47.2 245.6 Up 08:47:29 - 09:17:29 -1623
Ellensburg 09:02:29 -63.4 Dark Up 47.5 245.8 Up 08:47:29 - 09:17:29 -1666
Yakima 09:02:29 -63.8 Dark Up 47.7 246.1 Up 08:47:29 - 09:17:29 -1706
Pasco 09:02:24 -63.5 Dark Up 46.9 247.9 Up 08:47:24 - 09:17:24 -1726
Toppenish/White Swan 09:02:28 -63.9 Dark Up 47.7 246.5 Up 08:47:28 - 09:17:28 -1726
PNWRO 09:02:23 -63.6 Dark Up 46.9 248.4 Up 08:47:23 - 09:17:23 -1748
George/Umatilla 09:02:24 -63.8 Dark Up 47.2 248.0 Up 08:47:24 - 09:17:24 -1761
Goldendale 09:02:28 -64.5 Dark Up 48.2 246.7 Up 08:47:28 - 09:17:28 -1786
The Dalles 09:02:29 -64.8 Dark Up 48.5 246.5 Up 08:47:29 - 09:17:29 -1811
Maupin 09:02:27 -65.1 Dark Up 48.6 247.1 Up 08:47:27 - 09:17:27 -1852
Madras/Culver 09:02:27 -65.6 Dark Up 48.8 247.6 Up 08:47:27 - 09:17:27 -1908
Redmond 09:02:27 -65.9 Dark Up 49.0 247.9 Up 08:47:27 - 09:17:27 -1945
Sisters 09:02:27 -66.1 Dark Up 49.3 247.5 Up 08:47:27 - 09:17:27 -1946
Bend 09:02:26 -66.1 Dark Up 49.2 248.0 Up 08:47:26 - 09:17:26 -1968
Oregon Observatory 09:02:26 -66.3 Dark Up 49.3 248.1 Up 08:47:26 - 09:17:26 -1987
La Pine/Gilchrist 09:02:26 -66.5 Dark Up 49.4 248.2 Up 08:47:26 - 09:17:26 -2008
North Lake 09:02:24 -66.6 Dark Up 49.2 249.3 Up 08:47:24 - 09:17:24 -2046
Paisley 09:02:21 -66.9 Dark Up 49.1 250.2 Up 08:47:21 - 09:17:21 -2099
Chiloquin 09:02:25 -67.6 Dark Up 50.1 249.1 Up 08:47:25 - 09:17:25 -2125
Niwot 09:01:38 -59.4 Dark Up 38.6 265.1 Up 08:46:38 - 09:16:38 -2144
Lakeview 09:02:20 -67.2 Dark Up 49.2 251.0 Up 08:47:20 - 09:17:20 -2149
SwRI 09:01:38 -59.5 Dark Up 38.6 265.1 Up 08:46:38 - 09:16:38 -2156
Klamath Falls 09:02:24 -67.8 Dark Up 50.2 249.5 Up 08:47:24 - 09:17:24 -2159
Tulelake 09:02:23 -67.9 Dark Up 50.0 250.1 Up 08:47:23 - 09:17:23 -2184
Cedarville 09:02:19 -67.6 Dark Up 49.3 251.8 Up 08:47:19 - 09:17:19 -2215
Fall River/Burney 09:02:22 -68.6 Dark Up 50.3 251.2 Up 08:47:22 - 09:17:22 -2277
Susanville 09:02:19 -68.7 Dark Up 50.0 252.6 Up 08:47:19 - 09:17:19 -2335
Gimple 09:02:19 -69.0 Dark Up 50.2 252.8 Up 08:47:19 - 09:17:19 -2366
Greenville 09:02:19 -69.1 Dark Up 50.3 252.7 Up 08:47:19 - 09:17:19 -2367
Quincy 09:02:19 -69.2 Dark Up 50.3 252.9 Up 08:47:19 - 09:17:19 -2388
Portola 09:02:17 -69.1 Dark Up 50.0 253.5 Up 08:47:17 - 09:17:17 -2396
Reno 09:02:15 -68.9 Dark Up 49.6 254.4 Up 08:47:15 - 09:17:15 -2416
Carson City 09:02:15 -69.2 Dark Up 49.7 254.8 Up 08:47:15 - 09:17:15 -2454
Yerington 09:02:12 -68.9 Dark Up 49.3 255.5 Up 08:47:12 - 09:17:12 -2467
Gardnerville 09:02:14 -69.3 Dark Up 49.7 255.1 Up 08:47:14 - 09:17:14 -2479
Hawthorne 09:02:10 -69.0 Dark Up 49.0 256.5 Up 08:47:10 - 09:17:10 -2509
Tonopah 09:02:05 -68.4 Dark Up 48.0 258.2 Up 08:47:05 - 09:17:05 -2541
Lee Vining 09:02:10 -69.6 Dark Up 49.5 256.7 Up 08:47:10 - 09:17:10 -2574
Bishop 09:02:08 -69.6 Dark Up 49.1 258.0 Up 08:47:08 - 09:17:08 -2628
Beatty 09:02:02 -68.8 Dark Up 47.9 259.8 Up 08:47:02 - 09:17:02 -2656
Indian Springs 09:01:59 -68.2 Dark Up 47.1 260.9 Up 08:46:59 - 09:16:59 -2676
Lone Pine 09:02:05 -69.8 Dark Up 49.0 259.1 Up 08:47:05 - 09:17:05 -2704
Henderson 09:01:56 -68.0 Dark Up 46.6 262.0 Up 08:46:56 - 09:16:56 -2723
Patrick 09:01:52 -67.5 Dark Up 45.8 263.4 Up 08:46:52 - 09:16:52 -2773
Searchlight/Boulder City 09:01:55 -68.3 Dark Up 46.7 262.6 Up 08:46:55 - 09:16:55 -2783
DCO 09:01:49 -67.2 Dark Up 45.3 264.2 Up 08:46:49 - 09:16:49 -2794
Kingman/Dolan Springs 09:01:52 -67.8 Dark Up 46.0 263.5 Up 08:46:52 - 09:16:52 -2799
Laughlin/Bullhead City 09:01:53 -68.2 Dark Up 46.4 263.2 Up 08:46:53 - 09:16:53 -2809
Mohave Valley 09:01:53 -68.3 Dark Up 46.5 263.4 Up 08:46:53 - 09:16:53 -2838
CPSLO 09:02:12 -72.3 Dark Up 51.3 258.6 Up 08:47:12 - 09:17:12 -2873
Lake Havasu City 09:01:52 -68.3 Dark Up 46.3 264.0 Up 08:46:52 - 09:16:52 -2877
Parker 09:01:51 -68.4 Dark Up 46.3 264.4 Up 08:46:51 - 09:16:51 -2913
Blythe 09:01:51 -68.8 Dark Up 46.6 264.8 Up 08:46:51 - 09:16:51 -2974
Wildwood 09:02:04 -71.6 Dark Up 49.8 261.6 Up 08:47:04 - 09:17:04 -2978
Idyllwild 09:01:58 -70.4 Dark Up 48.3 263.3 Up 08:46:58 - 09:16:58 -2991
Calipatria 09:01:54 -69.7 Dark Up 47.4 264.7 Up 08:46:54 - 09:16:54 -3040
Yuma 09:01:50 -69.2 Dark Up 46.7 265.7 Up 08:46:50 - 09:16:50 -3073

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 15VW165, (2024/12/22 09:05UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  5.25 105
44Zet Per      03:54:07.9 +31:53:01  2.8 12.93 111
PPM 093481     04:23:32.4 +20:58:54  5.9  0.68 107
PPM 093455     04:22:22.8 +20:49:16  7.6  0.38 108
PPM 093436     04:20:43.6 +20:26:56 11.0  0.19 108
15VW165        04:21:30.8 +20:29:58 13.9       108
Positions are for J2000

Event circumstances last updated at 2019/06/08 09:44:54 UT

Marc W. Buie, Southwest Research Institute

RECON