RECON: TNO occultation with 02WL21

Event between 02WL21 and star GA1140:02239695 with event index number of 174349

Geocentric closest approach at 2019/02/04 11:18:20 UTC

J2000 position of star is 06:27:21.9 +24:33:44
Equinox of date position of star is 06:28:29.8 +24:32:59
Stellar brightness G=15.0, use SENSEUP=128
Star is 145 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=24.2

[RECON map]
TNO is 42.0 AU from the Sun and 41.3 AU from the Earth.
The TNO is moving 19.1 km/sec on the sky relative to the star, or, 2.3 arcsec/hr.
The 1-sigma error in the time of the event is 797 seconds.
The 1-sigma cross-track error in the shadow position is 4592 km.
The sky-plane scale is 29934.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.9
Diameter=154.9 km assuming a 5% albedo -- 8.1 sec chord
Diameter=63.2 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 02WL21, (2019/02/04 11:18UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:28.9 +27:58:43  1.1 17.79 162
Alhena         06:38:48.9 +16:22:53  1.9  8.51 147
PPM 095919     06:25:54.3 +25:02:13  6.3  0.77 145
PPM 095926     06:26:11.1 +24:17:25  8.5  0.59 145
PPM 095977     06:28:00.7 +24:44:28  9.7  0.23 145
PPM 096020     06:29:14.8 +24:26:46 10.2  0.19 145
02WL21         06:28:32.2 +24:32:58 15.0       146
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 1.1 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 11:23:06 -39.2 Dark Down 19.2 285.6 Really Low 11:08:06 - 11:38:06 7933
Oroville 11:23:03 -39.3 Dark Down 19.0 285.9 Really Low 11:08:03 - 11:38:03 7898
Tonasket 11:23:02 -39.4 Dark Down 18.9 286.0 Really Low 11:08:02 - 11:38:02 7883
Okanogan 11:23:00 -39.7 Dark Down 19.0 286.0 Really Low 11:08:00 - 11:38:00 7857
Brewster 11:22:59 -39.9 Dark Down 19.0 285.9 Really Low 11:07:59 - 11:37:59 7833
Manson/Chelan 11:22:58 -40.2 Dark Down 19.2 285.7 Really Low 11:07:58 - 11:37:58 7807
Entiat 11:22:58 -40.3 Dark Down 19.2 285.8 Really Low 11:07:58 - 11:37:58 7790
Niwot 11:22:33 -31.7 Dark Down 6.4 296.9 Really Low 11:07:33 - 11:37:33 7774
Wenatchee 11:22:55 -40.5 Dark Down 19.2 285.8 Really Low 11:07:55 - 11:37:55 7770
Ellensburg 11:22:54 -40.8 Dark Down 19.2 285.8 Really Low 11:07:54 - 11:37:54 7735
Pasco 11:22:51 -40.2 Dark Down 18.1 286.9 Really Low 11:07:51 - 11:37:51 7730
PNWRO 11:22:50 -40.1 Dark Down 17.9 287.2 Really Low 11:07:50 - 11:37:50 7720
Yakima 11:22:52 -41.0 Dark Down 19.1 285.9 Really Low 11:07:52 - 11:37:52 7707
George/Umatilla 11:22:49 -40.4 Dark Down 18.1 286.9 Really Low 11:07:49 - 11:37:49 7700
Toppenish/White Swan 11:22:52 -40.9 Dark Down 19.0 286.1 Really Low 11:07:52 - 11:37:52 7698
Goldendale 11:22:49 -41.4 Dark Down 19.1 286.0 Really Low 11:07:49 - 11:37:49 7646
The Dalles 11:22:49 -41.8 Dark Down 19.3 285.8 Really Low 11:07:49 - 11:37:49 7618
Maupin 11:22:46 -41.9 Dark Down 19.1 286.0 Really Low 11:07:46 - 11:37:46 7592
Madras/Culver 11:22:44 -42.1 Dark Down 19.0 286.2 Really Low 11:07:44 - 11:37:44 7552
Redmond 11:22:42 -42.3 Dark Down 18.9 286.2 Really Low 11:07:42 - 11:37:42 7524
Sisters 11:22:43 -42.5 Dark Down 19.2 286.0 Really Low 11:07:43 - 11:37:43 7513
Bend 11:22:42 -42.4 Dark Down 19.0 286.2 Really Low 11:07:42 - 11:37:42 7504
Oregon Observatory 11:22:41 -42.6 Dark Down 19.0 286.2 Really Low 11:07:41 - 11:37:41 7487
La Pine/Gilchrist 11:22:40 -42.7 Dark Down 19.0 286.2 Really Low 11:07:40 - 11:37:40 7470
North Lake 11:22:38 -42.4 Dark Down 18.5 286.7 Really Low 11:07:38 - 11:37:38 7459
Paisley 11:22:35 -42.4 Dark Down 18.0 287.1 Really Low 11:07:35 - 11:37:35 7431
Lakeview 11:22:34 -42.4 Dark Down 17.8 287.4 Really Low 11:07:34 - 11:37:34 7400
Chiloquin 11:22:36 -43.3 Dark Down 18.9 286.4 Really Low 11:07:36 - 11:37:36 7376
Cedarville 11:22:31 -42.5 Dark Down 17.5 287.7 Really Low 11:07:31 - 11:37:31 7357
Klamath Falls 11:22:34 -43.4 Dark Down 18.8 286.5 Really Low 11:07:34 - 11:37:34 7354
Tulelake 11:22:33 -43.3 Dark Down 18.5 286.8 Really Low 11:07:33 - 11:37:33 7344
Fall River/Burney 11:22:30 -43.5 Dark Down 18.2 287.1 Really Low 11:07:30 - 11:37:30 7278
Susanville 11:22:27 -43.2 Dark Down 17.5 287.7 Really Low 11:07:27 - 11:37:27 7256
Gimple 11:22:26 -43.4 Dark Down 17.5 287.7 Really Low 11:07:26 - 11:37:26 7228
Greenville 11:22:26 -43.5 Dark Down 17.6 287.6 Really Low 11:07:26 - 11:37:26 7225
Reno 11:22:23 -42.8 Dark Down 16.6 288.4 Really Low 11:07:23 - 11:37:23 7220
Portola 11:22:25 -43.2 Dark Down 17.2 288.0 Really Low 11:07:25 - 11:37:25 7217
Quincy 11:22:25 -43.6 Dark Down 17.5 287.7 Really Low 11:07:25 - 11:37:25 7209
Yerington 11:22:21 -42.5 Dark Down 16.0 289.0 Really Low 11:07:21 - 11:37:21 7200
Tonopah 11:22:18 -41.2 Dark Down 14.2 290.3 Really Low 11:07:18 - 11:37:18 7199
Carson City 11:22:22 -42.9 Dark Down 16.5 288.6 Really Low 11:07:22 - 11:37:22 7193
Hawthorne 11:22:19 -42.2 Dark Down 15.4 289.4 Really Low 11:07:19 - 11:37:19 7184
Gardnerville 11:22:21 -43.0 Dark Down 16.4 288.6 Really Low 11:07:21 - 11:37:21 7175
Indian Springs 11:22:13 -40.4 Dark Down 12.6 291.4 Really Low 11:07:13 - 11:37:13 7140
Beatty 11:22:14 -41.1 Dark Down 13.5 290.8 Really Low 11:07:14 - 11:37:14 7126
Henderson 11:22:11 -39.9 Dark Down 11.8 291.9 Really Low 11:07:11 - 11:37:11 7124
Lee Vining 11:22:18 -42.7 Dark Down 15.6 289.2 Really Low 11:07:18 - 11:37:18 7122
DCO 11:22:08 -38.6 Dark Down 10.1 293.0 Really Low 11:07:08 - 11:37:08 7119
Patrick 11:22:09 -39.1 Dark Down 10.8 292.6 Really Low 11:07:09 - 11:37:09 7117
Bishop 11:22:15 -42.3 Dark Down 14.9 289.8 Really Low 11:07:15 - 11:37:15 7102
Kingman/Dolan Springs 11:22:08 -39.3 Dark Down 10.8 292.5 Really Low 11:07:08 - 11:37:08 7092
Searchlight/Boulder City 11:22:09 -39.9 Dark Down 11.6 292.0 Really Low 11:07:09 - 11:37:09 7081
Laughlin/Bullhead City 11:22:08 -39.7 Dark Down 11.2 292.2 Really Low 11:07:08 - 11:37:08 7071
Lone Pine 11:22:12 -42.2 Dark Down 14.4 290.1 Really Low 11:07:12 - 11:37:12 7054
Mohave Valley 11:22:06 -39.7 Dark Down 11.1 292.3 Really Low 11:07:06 - 11:37:06 7050
Lake Havasu City 11:22:05 -39.6 Dark Down 10.8 292.5 Really Low 11:07:05 - 11:37:05 7027
Parker 11:22:04 -39.6 Dark Down 10.6 292.6 Really Low 11:07:04 - 11:37:04 7000
Blythe 11:22:02 -39.9 Dark Down 10.7 292.5 Really Low 11:07:02 - 11:37:02 6946
Idyllwild 11:22:03 -41.7 Dark Down 12.3 291.4 Really Low 11:07:03 - 11:37:03 6874
Calipatria 11:22:00 -40.8 Dark Down 11.2 292.1 Really Low 11:07:00 - 11:37:00 6870
Yuma 11:21:59 -40.1 Dark Down 10.3 292.6 Really Low 11:06:59 - 11:36:59 6870
CPSLO 11:22:08 -44.6 Dark Down 15.9 289.1 Really Low 11:07:08 - 11:37:08 6852
Wildwood 11:22:03 -43.2 Dark Down 13.9 290.4 Really Low 11:07:03 - 11:37:03 6831

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 02WL21, (2019/02/04 11:18UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.1 +28:01:33  1.1 17.79 162
Alhena         06:37:42.8 +16:23:57  1.9  8.51 147
PPM 095919     06:24:43.7 +25:02:55  6.3  0.77 145
PPM 095926     06:25:00.9 +24:18:07  8.5  0.59 145
PPM 095977     06:26:50.3 +24:45:14  9.7  0.23 145
PPM 096020     06:28:04.5 +24:27:34 10.2  0.19 145
02WL21         06:27:21.9 +24:33:44 15.0       145
Positions are for J2000

Event circumstances last updated at 2018/06/11 22:36:00 UT

Marc W. Buie, Southwest Research Institute

RECON