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 02:02:40 UTC

J2000 position of star is 05:51:54.0 +22:07:01
Equinox of date position of star is 05:53:02.5 +22:07:13
Stellar brightness G=17.8, use SENSEUP=128
Star is 1 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 476 seconds.
The 1-sigma cross-track error in the shadow position is 1686 km.
The sky-plane scale is 30132.3 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 02:03UT)
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   0
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 1.9 sigma about the mid-time.
The median site spacing is **** km RECON observability=0.1 and success probability=2.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 02:05:27 -14.8 AT Up 37.1 99.4 Up 01:50:27 - 02:20:27 6023
Kelowna 02:05:26 -15.1 AT Up 37.3 99.8 Up 01:50:26 - 02:20:26 6019
Penticton 02:05:27 -14.9 AT Up 37.2 99.4 Up 01:50:27 - 02:20:27 5992
Okanagan Falls 02:05:29 -14.8 AT Up 37.3 99.2 Up 01:50:29 - 02:20:29 5976
Oliver 02:05:28 -14.8 AT Up 37.3 99.1 Up 01:50:28 - 02:20:28 5962
Anarchist Mountain Observatory 02:05:28 -14.9 AT Up 37.5 99.1 Up 01:50:28 - 02:20:28 5943
Oroville 02:05:29 -14.8 AT Up 37.4 99.0 Up 01:50:29 - 02:20:29 5938
Tonasket 02:05:30 -14.8 AT Up 37.5 98.8 Up 01:50:30 - 02:20:30 5918
Okanogan 02:05:31 -14.6 AT Up 37.4 98.5 Up 01:50:31 - 02:20:31 5892
Brewster 02:05:32 -14.4 AT Up 37.3 98.1 Up 01:50:32 - 02:20:32 5874
Manson/Chelan 02:05:33 -14.1 AT Up 37.1 97.6 Up 01:50:33 - 02:20:33 5864
Entiat 02:05:34 -14.0 AT Up 37.1 97.4 Up 01:50:34 - 02:20:34 5847
Wenatchee 02:05:36 -13.9 AT Up 37.1 97.2 Up 01:50:36 - 02:20:36 5827
Ellensburg 02:05:38 -13.6 AT Up 37.0 96.7 Up 01:50:38 - 02:20:38 5797
Yakima 02:05:39 -13.5 AT Up 37.0 96.4 Up 01:50:39 - 02:20:39 5762
Toppenish/White Swan 02:05:39 -13.6 AT Up 37.2 96.3 Up 01:50:39 - 02:20:39 5739
Goldendale 02:05:41 -13.1 AT Up 36.9 95.6 Up 01:50:41 - 02:20:41 5700
Pasco 02:05:37 -14.4 AT Up 38.0 97.2 Up 01:50:37 - 02:20:37 5697
The Dalles 02:05:43 -12.8 AT Up 36.7 95.2 Up 01:50:43 - 02:20:43 5690
George/Umatilla 02:05:39 -14.1 AT Up 37.9 96.8 Up 01:50:39 - 02:20:39 5673
PNWRO 02:05:37 -14.5 AT Up 38.2 97.2 Up 01:50:37 - 02:20:37 5670
Maupin 02:05:44 -12.8 AT Up 36.8 94.9 Up 01:50:44 - 02:20:44 5650
Madras/Culver 02:05:46 -12.6 AT Up 36.8 94.5 Up 01:50:46 - 02:20:46 5602
Sisters 02:05:47 -12.2 AT Up 36.5 93.9 Up 01:50:47 - 02:20:47 5584
Redmond 02:05:47 -12.5 AT Up 36.8 94.2 Up 01:50:47 - 02:20:47 5572
Bend 02:05:47 -12.3 AT Up 36.7 93.9 Up 01:50:47 - 02:20:47 5556
Oregon Observatory 02:05:48 -12.2 AT Up 36.7 93.7 Up 01:50:48 - 02:20:48 5544
La Pine/Gilchrist 02:05:49 -12.1 AT Up 36.6 93.5 Up 01:50:49 - 02:20:49 5527
North Lake 02:05:50 -12.4 AT Up 37.1 93.6 Up 01:50:50 - 02:20:50 5472
Chiloquin 02:05:54 -11.5 NT Up 36.4 92.4 Up 01:50:54 - 02:20:54 5436
Paisley 02:05:50 -12.5 AT Up 37.4 93.5 Up 01:50:50 - 02:20:50 5413
Klamath Falls 02:05:54 -11.5 NT Up 36.5 92.3 Up 01:50:54 - 02:20:54 5402
Tulelake 02:05:55 -11.6 NT Up 36.8 92.3 Up 01:50:55 - 02:20:55 5370
Lakeview 02:05:51 -12.5 AT Up 37.6 93.2 Up 01:50:51 - 02:20:51 5361
Cedarville 02:05:53 -12.4 AT Up 37.7 92.8 Up 01:50:53 - 02:20:53 5296
Fall River/Burney 02:05:57 -11.4 NT Up 36.9 91.6 Up 01:50:57 - 02:20:57 5284
Susanville 02:05:57 -11.8 NT Up 37.4 91.7 Up 01:50:57 - 02:20:57 5206
Greenville 02:05:59 -11.5 NT Up 37.2 91.3 Up 01:50:59 - 02:20:59 5188
Gimple 02:05:58 -11.5 NT Up 37.3 91.3 Up 01:50:58 - 02:20:58 5185
Quincy 02:05:59 -11.4 NT Up 37.2 91.1 Up 01:50:59 - 02:20:59 5169
Portola 02:05:59 -11.7 NT Up 37.6 91.3 Up 01:50:59 - 02:20:59 5144
Reno 02:05:58 -12.1 AT Up 38.1 91.5 Up 01:50:58 - 02:20:58 5102
Carson City 02:05:59 -12.0 AT Up 38.1 91.3 Up 01:50:59 - 02:20:59 5067
Gardnerville 02:06:00 -12.0 AT Up 38.2 91.1 Up 01:51:00 - 02:21:00 5043
Yerington 02:05:58 -12.5 AT Up 38.6 91.5 Up 01:50:58 - 02:20:58 5032
Hawthorne 02:05:58 -12.7 AT Up 39.1 91.5 Up 01:50:58 - 02:20:58 4973
Lee Vining 02:06:01 -12.2 AT Up 38.7 90.7 Up 01:51:01 - 02:21:01 4932
Tonopah 02:05:56 -13.7 AT Up 40.2 92.0 Up 01:50:56 - 02:20:56 4890
Bishop 02:06:00 -12.6 AT Up 39.3 90.7 Up 01:51:00 - 02:21:00 4855
Niwot 02:05:20 -23.1 Dark Up 49.1 102.7 Up 01:50:20 - 02:20:20 4802
Lone Pine 02:06:01 -12.6 AT Up 39.5 90.3 Up 01:51:01 - 02:21:01 4772
Beatty 02:05:58 -13.7 AT Up 40.6 91.3 Up 01:50:58 - 02:20:58 4766
CPSLO 02:06:11 -10.3 NT Up 37.4 87.8 Up 01:51:11 - 02:21:11 4719
Indian Springs 02:05:56 -14.5 AT Up 41.4 91.7 Up 01:50:56 - 02:20:56 4705
Henderson 02:05:55 -14.9 AT Up 42.0 91.6 Up 01:50:55 - 02:20:55 4634
Searchlight/Boulder City 02:05:57 -14.8 AT Up 42.1 91.2 Up 01:50:57 - 02:20:57 4576
Patrick 02:05:55 -15.6 AT Up 42.9 91.8 Up 01:50:55 - 02:20:55 4543
Wildwood 02:06:09 -11.5 NT Up 39.1 87.9 Up 01:51:09 - 02:21:09 4542
Laughlin/Bullhead City 02:05:56 -15.0 AT Up 42.4 91.1 Up 01:50:56 - 02:20:56 4537
Kingman/Dolan Springs 02:05:55 -15.4 AT Up 42.8 91.4 Up 01:50:55 - 02:20:55 4526
Mohave Valley 02:05:57 -14.9 AT Up 42.4 90.9 Up 01:50:57 - 02:20:57 4510
DCO 02:05:53 -16.1 AT Up 43.5 91.9 Up 01:50:53 - 02:20:53 4494
Lake Havasu City 02:05:57 -15.0 AT Up 42.6 90.6 Up 01:50:57 - 02:20:57 4464
Idyllwild 02:06:05 -12.9 AT Up 40.6 88.7 Up 01:51:05 - 02:21:05 4453
Parker 02:05:58 -14.9 AT Up 42.6 90.3 Up 01:50:58 - 02:20:58 4428
Blythe 02:06:00 -14.6 AT Up 42.4 89.7 Up 01:51:00 - 02:21:00 4383
Calipatria 02:06:04 -13.7 AT Up 41.6 88.8 Up 01:51:04 - 02:21:04 4359
Yuma 02:06:02 -14.3 AT Up 42.3 88.8 Up 01:51:02 - 02:21:02 4291

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 02:03UT)
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 +20:16:32  5.1  1.93   1
PPM 095070     05:55:00.4 +21:24:22  8.0  1.01   0
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         1
Positions are for J2000

Event circumstances last updated at 2018/12/04 05:09:51 UT

Marc W. Buie, Southwest Research Institute

RECON