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 02:13:28 UTC

J2000 position of star is 05:51:54.0 +22:07:01
Equinox of date position of star is 05:52:57.2 +22:07:12
Stellar brightness R=16.3, use SENSEUP=128
Star is 2 degrees from the moon. Moon is 93% illuminated.
TNO apparent brightness V=23.8

[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=7.5
Diameter=187.9 km assuming a 5% albedo -- 8.7 sec chord
Diameter=76.7 km assuming a 30% albedo -- 3.6 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 +28:37:19  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 25.4 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 02:16:11 -16.5 AT Up 39.2 101.3 Up 02:01:11 - 02:31:11 10235
Tonasket 02:16:12 -16.5 AT Up 39.2 101.1 Up 02:01:12 - 02:31:12 10214
Okanogan 02:16:13 -16.3 AT Up 39.2 100.7 Up 02:01:13 - 02:31:13 10188
Brewster 02:16:15 -16.1 AT Up 39.1 100.3 Up 02:01:15 - 02:31:15 10169
Manson/Chelan 02:16:16 -15.8 AT Up 38.9 99.8 Up 02:01:16 - 02:31:16 10159
Entiat 02:16:17 -15.7 AT Up 38.9 99.6 Up 02:01:17 - 02:31:17 10141
Wenatchee 02:16:17 -15.6 AT Up 38.9 99.3 Up 02:01:17 - 02:31:17 10121
Ellensburg 02:16:19 -15.4 AT Up 38.8 98.8 Up 02:01:19 - 02:31:19 10090
Yakima 02:16:21 -15.3 AT Up 38.8 98.5 Up 02:01:21 - 02:31:21 10054
Toppenish/White Swan 02:16:21 -15.3 AT Up 39.0 98.5 Up 02:01:21 - 02:31:21 10031
Goldendale 02:16:24 -14.9 AT Up 38.8 97.7 Up 02:01:24 - 02:31:24 9992
Pasco 02:16:20 -16.2 AT Up 39.9 99.4 Up 02:01:20 - 02:31:20 9991
The Dalles 02:16:24 -14.6 AT Up 38.6 97.2 Up 02:01:24 - 02:31:24 9980
George/Umatilla 02:16:21 -15.9 AT Up 39.8 98.9 Up 02:01:21 - 02:31:21 9966
PNWRO 02:16:19 -16.3 AT Up 40.1 99.4 Up 02:01:19 - 02:31:19 9963
Maupin 02:16:26 -14.6 AT Up 38.7 97.0 Up 02:01:26 - 02:31:26 9940
Madras/Culver 02:16:27 -14.4 AT Up 38.7 96.5 Up 02:01:27 - 02:31:27 9892
Sisters 02:16:29 -14.0 AT Up 38.4 95.9 Up 02:01:29 - 02:31:29 9873
Redmond 02:16:29 -14.3 AT Up 38.7 96.2 Up 02:01:29 - 02:31:29 9861
Bend 02:16:30 -14.2 AT Up 38.7 95.9 Up 02:01:30 - 02:31:30 9845
Oregon Observatory 02:16:29 -14.0 AT Up 38.6 95.7 Up 02:01:29 - 02:31:29 9833
La Pine/Gilchrist 02:16:31 -13.9 AT Up 38.6 95.5 Up 02:01:31 - 02:31:31 9816
North Lake 02:16:31 -14.3 AT Up 39.0 95.6 Up 02:01:31 - 02:31:31 9761
Chiloquin 02:16:35 -13.4 AT Up 38.4 94.4 Up 02:01:35 - 02:31:35 9723
Paisley 02:16:32 -14.4 AT Up 39.4 95.4 Up 02:01:32 - 02:31:32 9701
Klamath Falls 02:16:36 -13.4 AT Up 38.5 94.1 Up 02:01:36 - 02:31:36 9689
Tulelake 02:16:36 -13.5 AT Up 38.7 94.1 Up 02:01:36 - 02:31:36 9656
Lakeview 02:16:32 -14.4 AT Up 39.5 95.1 Up 02:01:32 - 02:31:32 9649
Cedarville 02:16:35 -14.3 AT Up 39.7 94.7 Up 02:01:35 - 02:31:35 9584
Fall River/Burney 02:16:38 -13.3 AT Up 38.9 93.5 Up 02:01:38 - 02:31:38 9569
Susanville 02:16:39 -13.7 AT Up 39.5 93.5 Up 02:01:39 - 02:31:39 9491
Greenville 02:16:40 -13.4 AT Up 39.3 93.1 Up 02:01:40 - 02:31:40 9473
Gimple 02:16:40 -13.5 AT Up 39.3 93.1 Up 02:01:40 - 02:31:40 9470
Quincy 02:16:40 -13.4 AT Up 39.3 92.9 Up 02:01:40 - 02:31:40 9453
Portola 02:16:40 -13.7 AT Up 39.7 93.1 Up 02:01:40 - 02:31:40 9429
Reno 02:16:39 -14.1 AT Up 40.2 93.3 Up 02:01:39 - 02:31:39 9387
Carson City 02:16:40 -14.0 AT Up 40.2 93.0 Up 02:01:40 - 02:31:40 9352
Gardnerville 02:16:41 -14.0 AT Up 40.3 92.9 Up 02:01:41 - 02:31:41 9327
Yerington 02:16:39 -14.5 AT Up 40.7 93.3 Up 02:01:39 - 02:31:39 9317
Hawthorne 02:16:39 -14.7 AT Up 41.1 93.2 Up 02:01:39 - 02:31:39 9258
Lee Vining 02:16:42 -14.2 AT Up 40.8 92.4 Up 02:01:42 - 02:31:42 9217
Tonopah 02:16:36 -15.7 AT Up 42.3 93.8 Up 02:01:36 - 02:31:36 9177
Bishop 02:16:41 -14.6 AT Up 41.4 92.4 Up 02:01:41 - 02:31:41 9139
Niwot 02:15:59 -25.1 Dark Up 51.1 105.0 Up 02:00:59 - 02:30:59 9105
Lone Pine 02:16:42 -14.7 AT Up 41.7 91.9 Up 02:01:42 - 02:31:42 9056
Beatty 02:16:38 -15.8 AT Up 42.7 93.0 Up 02:01:38 - 02:31:38 9052
CPSLO 02:16:52 -12.4 AT Up 39.6 89.3 Up 02:01:52 - 02:31:52 8998
Indian Springs 02:16:36 -16.5 AT Up 43.6 93.4 Up 02:01:36 - 02:31:36 8992
Henderson 02:16:35 -17.0 AT Up 44.2 93.3 Up 02:01:35 - 02:31:35 8921
Searchlight/Boulder City 02:16:37 -16.9 AT Up 44.3 92.8 Up 02:01:37 - 02:31:37 8862
Patrick 02:16:34 -17.7 AT Up 45.1 93.4 Up 02:01:34 - 02:31:34 8830
Laughlin/Bullhead City 02:16:36 -17.1 AT Up 44.6 92.7 Up 02:01:36 - 02:31:36 8823
Wildwood 02:16:50 -13.6 AT Up 41.3 89.4 Up 02:01:50 - 02:31:50 8822
Kingman/Dolan Springs 02:16:35 -17.5 AT Up 45.0 93.1 Up 02:01:35 - 02:31:35 8813
Mohave Valley 02:16:37 -17.0 AT Up 44.6 92.5 Up 02:01:37 - 02:31:37 8796
DCO 02:16:32 -18.2 Dark Up 45.7 93.5 Up 02:01:32 - 02:31:32 8782
Lake Havasu City 02:16:37 -17.1 AT Up 44.8 92.2 Up 02:01:37 - 02:31:37 8749
Idyllwild 02:16:45 -15.0 AT Up 42.9 90.1 Up 02:01:45 - 02:31:45 8736
Parker 02:16:38 -17.1 AT Up 44.8 91.9 Up 02:01:38 - 02:31:38 8713
Blythe 02:16:39 -16.7 AT Up 44.6 91.2 Up 02:01:39 - 02:31:39 8668
Calipatria 02:16:43 -15.8 AT Up 43.8 90.2 Up 02:01:43 - 02:31:43 8642
Yuma 02:16:41 -16.5 AT Up 44.6 90.3 Up 02:01:41 - 02:31:41 8575

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 2017/06/14 17:03:09 UT

Marc W. Buie, Southwest Research Institute

RECON