RECON: TNO occultation with 00WO183

Event between 00WO183 and star GA1120:01532053 with event index number of 174133

Geocentric closest approach at 2019/01/19 02:13:27 UTC

J2000 position of star is 05:51:54.0 +22:07:01
Equinox of date position of star is 05:53:00.7 +22:07:13
Stellar brightness G=17.8, use SENSEUP=128
Star is 2 degrees from the moon. Moon is 93% illuminated.
TNO apparent brightness V=23.7

[RECON map]
TNO is 42.4 AU from the Sun and 41.5 AU from the Earth.
The TNO is moving 21.6 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 661 seconds.
The 1-sigma cross-track error in the shadow position is 4477 km.
The sky-plane scale is 30132.5 km/arcsec.

The TNO has an absolute magnitude Hv=7.4
Diameter=195.9 km assuming a 5% albedo -- 9.1 sec chord
Diameter=80.0 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 00WO183, (2019/01/19 02:13UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:12.2 +07:24:33  0.4 14.73  14
Alnath         05:27:29.9 +28:37:18  1.6  8.69  10
54Chi1Ori      05:55:30.7 +20:16:41  5.1  1.93   1
PPM 095070     05:56:09.0 +21:24:29  8.0  1.01   1
PPM 094999     05:53:31.4 +21:56:12  9.4  0.21   1
PPM 094973     05:52:12.5 +22:11:16 10.3  0.21   2
00WO183        05:53:02.9 +22:07:13 17.8         1
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 24.8 km RECON observability=0.9 and success probability=11.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 02:24:21 -17.9 AT Up 40.3 103.4 Up 02:09:21 - 02:39:21 3426
Oroville 02:24:23 -17.8 AT Up 40.5 103.1 Up 02:09:23 - 02:39:23 3371
Tonasket 02:24:24 -17.8 AT Up 40.5 102.9 Up 02:09:24 - 02:39:24 3350
Okanogan 02:24:25 -17.6 AT Up 40.5 102.5 Up 02:09:25 - 02:39:25 3324
Brewster 02:24:26 -17.5 AT Up 40.4 102.1 Up 02:09:26 - 02:39:26 3305
Manson/Chelan 02:24:27 -17.2 AT Up 40.2 101.6 Up 02:09:27 - 02:39:27 3294
Entiat 02:24:28 -17.1 AT Up 40.2 101.3 Up 02:09:28 - 02:39:28 3276
Wenatchee 02:24:29 -17.0 AT Up 40.2 101.0 Up 02:09:29 - 02:39:29 3256
Ellensburg 02:24:30 -16.7 AT Up 40.2 100.5 Up 02:09:30 - 02:39:30 3224
Yakima 02:24:32 -16.6 AT Up 40.2 100.2 Up 02:09:32 - 02:39:32 3188
Toppenish/White Swan 02:24:32 -16.7 AT Up 40.4 100.1 Up 02:09:32 - 02:39:32 3165
Pasco 02:24:30 -17.5 AT Up 41.3 101.1 Up 02:09:30 - 02:39:30 3125
Goldendale 02:24:35 -16.3 AT Up 40.2 99.3 Up 02:09:35 - 02:39:35 3125
The Dalles 02:24:36 -16.0 AT Up 40.0 98.9 Up 02:09:36 - 02:39:36 3113
George/Umatilla 02:24:32 -17.3 AT Up 41.2 100.6 Up 02:09:32 - 02:39:32 3100
PNWRO 02:24:30 -17.7 AT Up 41.5 101.1 Up 02:09:30 - 02:39:30 3098
Maupin 02:24:37 -16.0 AT Up 40.1 98.6 Up 02:09:37 - 02:39:37 3073
Madras/Culver 02:24:39 -15.9 AT Up 40.2 98.1 Up 02:09:39 - 02:39:39 3024
Sisters 02:24:41 -15.5 AT Up 39.9 97.5 Up 02:09:41 - 02:39:41 3005
Redmond 02:24:40 -15.7 AT Up 40.2 97.8 Up 02:09:40 - 02:39:40 2993
Bend 02:24:41 -15.6 AT Up 40.1 97.5 Up 02:09:41 - 02:39:41 2976
Oregon Observatory 02:24:42 -15.5 AT Up 40.1 97.2 Up 02:09:42 - 02:39:42 2964
La Pine/Gilchrist 02:24:42 -15.4 AT Up 40.0 97.0 Up 02:09:42 - 02:39:42 2946
North Lake 02:24:42 -15.7 AT Up 40.5 97.1 Up 02:09:42 - 02:39:42 2892
Chiloquin 02:24:46 -14.9 AT Up 39.9 95.9 Up 02:09:46 - 02:39:46 2852
Paisley 02:24:43 -15.8 AT Up 40.9 96.9 Up 02:09:43 - 02:39:43 2832
Klamath Falls 02:24:47 -14.8 AT Up 40.0 95.6 Up 02:09:47 - 02:39:47 2819
Tulelake 02:24:48 -15.0 AT Up 40.3 95.6 Up 02:09:48 - 02:39:48 2786
Lakeview 02:24:44 -15.8 AT Up 41.1 96.6 Up 02:09:44 - 02:39:44 2780
Cedarville 02:24:45 -15.8 AT Up 41.3 96.2 Up 02:09:45 - 02:39:45 2714
Fall River/Burney 02:24:49 -14.8 AT Up 40.4 94.9 Up 02:09:49 - 02:39:49 2699
Susanville 02:24:49 -15.2 AT Up 41.0 94.9 Up 02:09:49 - 02:39:49 2620
Greenville 02:24:51 -14.9 AT Up 40.8 94.5 Up 02:09:51 - 02:39:51 2601
Gimple 02:24:51 -15.0 AT Up 40.9 94.5 Up 02:09:51 - 02:39:51 2599
Quincy 02:24:52 -14.9 AT Up 40.9 94.3 Up 02:09:52 - 02:39:52 2582
Portola 02:24:51 -15.2 AT Up 41.2 94.5 Up 02:09:51 - 02:39:51 2558
Reno 02:24:50 -15.6 AT Up 41.7 94.7 Up 02:09:50 - 02:39:50 2516
Carson City 02:24:51 -15.6 AT Up 41.8 94.4 Up 02:09:51 - 02:39:51 2481
Gardnerville 02:24:51 -15.5 AT Up 41.8 94.2 Up 02:09:51 - 02:39:51 2456
Yerington 02:24:50 -16.0 AT Up 42.3 94.7 Up 02:09:50 - 02:39:50 2446
Hawthorne 02:24:49 -16.3 AT Up 42.7 94.6 Up 02:09:49 - 02:39:49 2388
Lee Vining 02:24:52 -15.8 AT Up 42.4 93.8 Up 02:09:52 - 02:39:52 2345
Tonopah 02:24:47 -17.3 AT Up 43.9 95.1 Up 02:09:47 - 02:39:47 2307
Bishop 02:24:52 -16.2 AT Up 43.0 93.7 Up 02:09:52 - 02:39:52 2268
Niwot 02:24:09 -26.7 Dark Up 52.6 106.9 Up 02:09:09 - 02:39:09 2244
Lone Pine 02:24:53 -16.3 AT Up 43.3 93.2 Up 02:09:53 - 02:39:53 2185
Beatty 02:24:49 -17.4 AT Up 44.3 94.3 Up 02:09:49 - 02:39:49 2181
CPSLO 02:25:02 -14.0 AT Up 41.3 90.5 Up 02:10:02 - 02:40:02 2125
Indian Springs 02:24:47 -18.1 Dark Up 45.2 94.7 Up 02:09:47 - 02:39:47 2122
Henderson 02:24:46 -18.6 Dark Up 45.8 94.6 Up 02:09:46 - 02:39:46 2051
Searchlight/Boulder City 02:24:47 -18.5 Dark Up 45.9 94.1 Up 02:09:47 - 02:39:47 1992
Patrick 02:24:44 -19.3 Dark Up 46.8 94.7 Up 02:09:44 - 02:39:44 1961
Laughlin/Bullhead City 02:24:47 -18.7 Dark Up 46.2 94.0 Up 02:09:47 - 02:39:47 1954
Wildwood 02:25:00 -15.3 AT Up 43.0 90.5 Up 02:10:00 - 02:40:00 1949
Kingman/Dolan Springs 02:24:45 -19.1 Dark Up 46.6 94.3 Up 02:09:45 - 02:39:45 1943
Mohave Valley 02:24:47 -18.7 Dark Up 46.3 93.7 Up 02:09:47 - 02:39:47 1926
DCO 02:24:43 -19.8 Dark Up 47.4 94.8 Up 02:09:43 - 02:39:43 1913
Lake Havasu City 02:24:47 -18.8 Dark Up 46.5 93.5 Up 02:09:47 - 02:39:47 1879
Idyllwild 02:24:56 -16.7 AT Up 44.6 91.3 Up 02:09:56 - 02:39:56 1863
Parker 02:24:48 -18.7 Dark Up 46.5 93.1 Up 02:09:48 - 02:39:48 1843
Blythe 02:24:50 -18.4 Dark Up 46.3 92.4 Up 02:09:50 - 02:39:50 1797
Calipatria 02:24:53 -17.5 AT Up 45.6 91.3 Up 02:09:53 - 02:39:53 1771
Yuma 02:24:52 -18.1 Dark Up 46.3 91.4 Up 02:09:52 - 02:39:52 1704

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 00WO183, (2019/01/19 02:13UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 14.73  14
Alnath         05:26:17.5 +28:36:23  1.6  8.69  10
54Chi1Ori      05:54:22.7 +20:16:33  5.1  1.93   1
PPM 095070     05:55:00.4 +21:24:22  8.0  1.01   1
PPM 094999     05:52:22.6 +21:56:00  9.4  0.21   1
PPM 094973     05:51:03.6 +22:11:02 10.3  0.21   2
00WO183        05:51:54.0 +22:07:01 17.8         2
Positions are for J2000

Event circumstances last updated at 2018/06/11 19:32:52 UT

Marc W. Buie, Southwest Research Institute

RECON