RECON: TNO occultation with 00WO183

Event between 00WO183 and star UC4-561-021629 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 05:52:58.9 +22:07:13
Stellar brightness R=16.3, 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        05:53:03.0 +22:07:13 16.3         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 25.2 km RECON observability=0.5 and success probability=3.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 02:16:12 -16.5 AT Up 39.2 101.3 Up 02:01:12 - 02:31:12 10241
Tonasket 02:16:13 -16.5 AT Up 39.2 101.1 Up 02:01:13 - 02:31:13 10221
Okanogan 02:16:14 -16.3 AT Up 39.2 100.7 Up 02:01:14 - 02:31:14 10195
Brewster 02:16:15 -16.1 AT Up 39.1 100.3 Up 02:01:15 - 02:31:15 10176
Manson/Chelan 02:16:16 -15.8 AT Up 38.9 99.8 Up 02:01:16 - 02:31:16 10166
Entiat 02:16:17 -15.7 AT Up 38.9 99.6 Up 02:01:17 - 02:31:17 10148
Wenatchee 02:16:17 -15.6 AT Up 38.9 99.3 Up 02:01:17 - 02:31:17 10128
Ellensburg 02:16:20 -15.4 AT Up 38.8 98.8 Up 02:01:20 - 02:31:20 10097
Yakima 02:16:21 -15.3 AT Up 38.8 98.5 Up 02:01:21 - 02:31:21 10061
Toppenish/White Swan 02:16:21 -15.3 AT Up 39.0 98.5 Up 02:01:21 - 02:31:21 10038
Goldendale 02:16:24 -14.9 AT Up 38.8 97.7 Up 02:01:24 - 02:31:24 9999
Pasco 02:16:19 -16.2 AT Up 39.9 99.4 Up 02:01:19 - 02:31:19 9997
The Dalles 02:16:24 -14.6 AT Up 38.6 97.2 Up 02:01:24 - 02:31:24 9987
George/Umatilla 02:16:20 -15.9 AT Up 39.8 98.9 Up 02:01:20 - 02:31:20 9973
PNWRO 02:16:20 -16.3 AT Up 40.1 99.4 Up 02:01:20 - 02:31:20 9970
Maupin 02:16:27 -14.6 AT Up 38.7 97.0 Up 02:01:27 - 02:31:27 9947
Madras/Culver 02:16:28 -14.4 AT Up 38.7 96.5 Up 02:01:28 - 02:31:28 9899
Sisters 02:16:30 -14.0 AT Up 38.4 95.9 Up 02:01:30 - 02:31:30 9880
Redmond 02:16:29 -14.3 AT Up 38.7 96.2 Up 02:01:29 - 02:31:29 9868
Bend 02:16:30 -14.2 AT Up 38.7 95.9 Up 02:01:30 - 02:31:30 9852
Oregon Observatory 02:16:31 -14.0 AT Up 38.6 95.7 Up 02:01:31 - 02:31:31 9839
La Pine/Gilchrist 02:16:31 -13.9 AT Up 38.6 95.5 Up 02:01:31 - 02:31:31 9822
North Lake 02:16:32 -14.3 AT Up 39.0 95.6 Up 02:01:32 - 02:31:32 9768
Chiloquin 02:16:35 -13.4 AT Up 38.4 94.4 Up 02:01:35 - 02:31:35 9729
Paisley 02:16:33 -14.4 AT Up 39.4 95.4 Up 02:01:33 - 02:31:33 9708
Klamath Falls 02:16:36 -13.4 AT Up 38.5 94.1 Up 02:01:36 - 02:31:36 9696
Tulelake 02:16:37 -13.5 AT Up 38.7 94.1 Up 02:01:37 - 02:31:37 9663
Lakeview 02:16:34 -14.4 AT Up 39.6 95.1 Up 02:01:34 - 02:31:34 9656
Cedarville 02:16:35 -14.3 AT Up 39.7 94.7 Up 02:01:35 - 02:31:35 9590
Fall River/Burney 02:16:39 -13.3 AT Up 38.9 93.5 Up 02:01:39 - 02:31:39 9577
Susanville 02:16:39 -13.7 AT Up 39.5 93.5 Up 02:01:39 - 02:31:39 9498
Greenville 02:16:40 -13.4 AT Up 39.3 93.1 Up 02:01:40 - 02:31:40 9480
Gimple 02:16:41 -13.5 AT Up 39.3 93.1 Up 02:01:41 - 02:31:41 9477
Quincy 02:16:40 -13.4 AT Up 39.3 92.9 Up 02:01:40 - 02:31:40 9461
Portola 02:16:40 -13.7 AT Up 39.7 93.1 Up 02:01:40 - 02:31:40 9436
Reno 02:16:39 -14.1 AT Up 40.2 93.3 Up 02:01:39 - 02:31:39 9394
Carson City 02:16:41 -14.0 AT Up 40.2 93.0 Up 02:01:41 - 02:31:41 9359
Gardnerville 02:16:40 -14.0 AT Up 40.3 92.9 Up 02:01:40 - 02:31:40 9335
Yerington 02:16:40 -14.5 AT Up 40.7 93.3 Up 02:01:40 - 02:31:40 9324
Hawthorne 02:16:40 -14.7 AT Up 41.1 93.2 Up 02:01:40 - 02:31:40 9265
Lee Vining 02:16:41 -14.2 AT Up 40.8 92.4 Up 02:01:41 - 02:31:41 9224
Tonopah 02:16:37 -15.7 AT Up 42.3 93.8 Up 02:01:37 - 02:31:37 9184
Bishop 02:16:41 -14.6 AT Up 41.4 92.4 Up 02:01:41 - 02:31:41 9147
Niwot 02:15:59 -25.1 Dark Up 51.1 105.0 Up 02:00:59 - 02:30:59 9110
Lone Pine 02:16:42 -14.7 AT Up 41.7 91.9 Up 02:01:42 - 02:31:42 9063
Beatty 02:16:39 -15.8 AT Up 42.7 93.0 Up 02:01:39 - 02:31:39 9059
CPSLO 02:16:53 -12.4 AT Up 39.6 89.3 Up 02:01:53 - 02:31:53 9007
Indian Springs 02:16:37 -16.5 AT Up 43.6 93.4 Up 02:01:37 - 02:31:37 8999
Henderson 02:16:36 -17.0 AT Up 44.2 93.3 Up 02:01:36 - 02:31:36 8928
Searchlight/Boulder City 02:16:37 -16.9 AT Up 44.3 92.8 Up 02:01:37 - 02:31:37 8869
Patrick 02:16:34 -17.7 AT Up 45.1 93.4 Up 02:01:34 - 02:31:34 8837
Laughlin/Bullhead City 02:16:37 -17.1 AT Up 44.6 92.7 Up 02:01:37 - 02:31:37 8831
Wildwood 02:16:50 -13.6 AT Up 41.3 89.4 Up 02:01:50 - 02:31:50 8830
Kingman/Dolan Springs 02:16:35 -17.5 AT Up 45.0 93.1 Up 02:01:35 - 02:31:35 8820
Mohave Valley 02:16:38 -17.0 AT Up 44.6 92.5 Up 02:01:38 - 02:31:38 8803
DCO 02:16:33 -18.2 Dark Up 45.7 93.5 Up 02:01:33 - 02:31:33 8789
Lake Havasu City 02:16:38 -17.1 AT Up 44.8 92.2 Up 02:01:38 - 02:31:38 8757
Idyllwild 02:16:46 -15.1 AT Up 42.9 90.1 Up 02:01:46 - 02:31:46 8743
Parker 02:16:39 -17.1 AT Up 44.8 91.9 Up 02:01:39 - 02:31:39 8720
Blythe 02:16:41 -16.7 AT Up 44.6 91.2 Up 02:01:41 - 02:31:41 8675
Calipatria 02:16:44 -15.9 AT Up 43.8 90.2 Up 02:01:44 - 02:31:44 8650
Yuma 02:16:42 -16.5 AT Up 44.6 90.3 Up 02:01:42 - 02:31:42 8583

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 +28:36:24  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 16.3         2
Positions are for J2000

Event circumstances last updated at 2017/12/05 19:11:28 UT

Marc W. Buie, Southwest Research Institute

RECON