RECON: TNO occultation with 02WL21

Event between 02WL21 and star GA1140:02350295 with event index number of 237703

Geocentric closest approach at 2020/01/20 03:27:16 UTC

J2000 position of star is 06:34:31.6 +24:31:47
Equinox of date position of star is 06:35:40.8 +24:30:49
Stellar brightness G=14.9, use SENSEUP=128
Star is 145 degrees from the moon. Moon is 23% illuminated.
TNO apparent brightness V=24.2

[RECON map]
TNO is 42.1 AU from the Sun and 41.2 AU from the Earth.
The TNO is moving 23.6 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 502 seconds.
The 1-sigma cross-track error in the shadow position is 3282 km.
The sky-plane scale is 29851.3 km/arcsec.

The TNO has an absolute magnitude Hv=7.9
Diameter=154.9 km assuming a 5% albedo -- 6.6 sec chord
Diameter=63.2 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 02WL21, (2020/01/20 03:27UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:32.5 +27:58:34  1.1 16.23 129
Alhena         06:38:52.2 +16:22:50  1.9  8.16 144
PPM 096264     06:38:41.0 +24:34:21  6.5  0.67 144
PPM 096208     06:36:08.1 +24:16:47  9.9  0.25 144
PPM 096212     06:36:16.6 +24:37:02 10.6  0.16 144
02WL21         06:35:45.4 +24:30:45 14.9       144
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 1.8 sigma about the mid-time.
The median site spacing is 22.0 km RECON observability=1.0 and success probability=7.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 03:29:32 -28.1 Dark Down 45.8 107.2 Up 03:14:32 - 03:44:32 -4953
Kelowna 03:29:31 -28.3 Dark Down 46.0 107.6 Up 03:14:31 - 03:44:31 -4956
Penticton 03:29:32 -28.2 Dark Down 46.0 107.1 Up 03:14:32 - 03:44:32 -4986
Okanagan Falls 03:29:33 -28.2 Dark Down 46.1 106.9 Up 03:14:33 - 03:44:33 -5003
Oliver 03:29:33 -28.2 Dark Down 46.2 106.8 Up 03:14:33 - 03:44:33 -5019
Anarchist Mountain Observatory 03:29:33 -28.4 Dark Down 46.3 106.8 Up 03:14:33 - 03:44:33 -5039
Oroville 03:29:33 -28.3 Dark Down 46.3 106.6 Up 03:14:33 - 03:44:33 -5044
Tonasket 03:29:34 -28.3 Dark Down 46.4 106.4 Up 03:14:34 - 03:44:34 -5066
Okanogan 03:29:35 -28.2 Dark Down 46.4 105.9 Up 03:14:35 - 03:44:35 -5095
Brewster 03:29:36 -28.1 Dark Down 46.3 105.5 Up 03:14:36 - 03:44:36 -5117
Manson/Chelan 03:29:37 -27.9 Dark Down 46.1 104.9 Up 03:14:37 - 03:44:37 -5129
Entiat 03:29:38 -27.8 Dark Down 46.1 104.6 Up 03:14:38 - 03:44:38 -5149
Wenatchee 03:29:39 -27.8 Dark Down 46.2 104.3 Up 03:14:39 - 03:44:39 -5171
Ellensburg 03:29:41 -27.6 Dark Down 46.1 103.7 Up 03:14:41 - 03:44:41 -5206
Yakima 03:29:42 -27.6 Dark Down 46.2 103.3 Up 03:14:42 - 03:44:42 -5244
Toppenish/White Swan 03:29:41 -27.7 Dark Down 46.4 103.2 Up 03:14:41 - 03:44:41 -5268
Pasco 03:29:39 -28.6 Dark Down 47.2 104.2 Up 03:14:39 - 03:44:39 -5306
Goldendale 03:29:43 -27.4 Dark Down 46.2 102.3 Up 03:14:43 - 03:44:43 -5312
The Dalles 03:29:45 -27.1 Dark Down 46.0 101.7 Up 03:14:45 - 03:44:45 -5326
George/Umatilla 03:29:40 -28.4 Dark Down 47.2 103.7 Up 03:14:40 - 03:44:40 -5334
PNWRO 03:29:39 -28.7 Dark Down 47.4 104.1 Up 03:14:39 - 03:44:39 -5334
Maupin 03:29:45 -27.2 Dark Down 46.2 101.4 Up 03:14:45 - 03:44:45 -5369
Madras/Culver 03:29:47 -27.2 Dark Down 46.2 100.8 Up 03:14:47 - 03:44:47 -5421
Sisters 03:29:49 -26.8 Dark Down 46.0 100.1 Up 03:14:49 - 03:44:49 -5444
Redmond 03:29:48 -27.1 Dark Down 46.3 100.4 Up 03:14:48 - 03:44:48 -5454
Bend 03:29:48 -27.0 Dark Down 46.2 100.1 Up 03:14:48 - 03:44:48 -5472
Oregon Observatory 03:29:49 -26.9 Dark Down 46.1 99.8 Up 03:14:49 - 03:44:49 -5486
La Pine/Gilchrist 03:29:49 -26.9 Dark Down 46.1 99.5 Up 03:14:49 - 03:44:49 -5505
North Lake 03:29:49 -27.3 Dark Down 46.6 99.6 Up 03:14:49 - 03:44:49 -5561
Chiloquin 03:29:53 -26.5 Dark Down 46.1 98.1 Up 03:14:53 - 03:44:53 -5606
Paisley 03:29:49 -27.5 Dark Down 47.0 99.3 Up 03:14:49 - 03:44:49 -5623
Klamath Falls 03:29:53 -26.6 Dark Down 46.2 97.8 Up 03:14:53 - 03:44:53 -5641
Tulelake 03:29:53 -26.8 Dark Down 46.4 97.8 Up 03:14:53 - 03:44:53 -5675
Lakeview 03:29:50 -27.6 Dark Down 47.2 98.9 Up 03:14:50 - 03:44:50 -5677
Cedarville 03:29:51 -27.7 Dark Down 47.5 98.3 Up 03:14:51 - 03:44:51 -5746
Fall River/Burney 03:29:55 -26.8 Dark Down 46.6 96.9 Up 03:14:55 - 03:44:55 -5767
Susanville 03:29:55 -27.3 Dark Down 47.2 96.8 Up 03:14:55 - 03:44:55 -5846
Greenville 03:29:56 -27.1 Dark Down 47.1 96.3 Up 03:14:56 - 03:44:56 -5867
Gimple 03:29:56 -27.1 Dark Down 47.1 96.3 Up 03:14:56 - 03:44:56 -5869
Quincy 03:29:56 -27.0 Dark Down 47.1 96.0 Up 03:14:56 - 03:44:56 -5888
Portola 03:29:55 -27.4 Dark Down 47.5 96.3 Up 03:14:55 - 03:44:55 -5911
Reno 03:29:54 -27.9 Dark Down 48.0 96.4 Up 03:14:54 - 03:44:54 -5953
Carson City 03:29:55 -27.9 Dark Down 48.0 96.1 Up 03:14:55 - 03:44:55 -5989
Gardnerville 03:29:55 -27.9 Dark Down 48.1 95.8 Up 03:14:55 - 03:44:55 -6015
Yerington 03:29:53 -28.3 Dark Down 48.5 96.3 Up 03:14:53 - 03:44:53 -6023
Hawthorne 03:29:53 -28.7 Dark Down 49.0 96.2 Up 03:14:53 - 03:44:53 -6082
Lee Vining 03:29:56 -28.3 Dark Down 48.7 95.2 Up 03:14:56 - 03:44:56 -6129
Tonopah 03:29:50 -29.8 Dark Down 50.2 96.6 Up 03:14:50 - 03:44:50 -6161
Niwot 03:29:13 -39.0 Dark Down 58.7 109.9 Up 03:14:13 - 03:44:13 -6169
Bishop 03:29:54 -28.8 Dark Down 49.3 95.0 Up 03:14:54 - 03:44:54 -6206
Beatty 03:29:51 -30.1 Dark Down 50.6 95.6 Up 03:14:51 - 03:44:51 -6290
Lone Pine 03:29:55 -29.0 Dark Down 49.6 94.3 Up 03:14:55 - 03:44:55 -6292
Indian Springs 03:29:49 -30.9 Dark Down 51.5 95.9 Up 03:14:49 - 03:44:49 -6347
CPSLO 03:30:04 -26.8 Dark Down 47.6 91.2 Up 03:15:04 - 03:45:04 -6365
Henderson 03:29:47 -31.4 Dark Down 52.1 95.7 Up 03:14:47 - 03:44:47 -6418
Searchlight/Boulder City 03:29:48 -31.5 Dark Down 52.2 95.0 Up 03:14:48 - 03:44:48 -6479
Patrick 03:29:45 -32.3 Dark Down 53.1 95.6 Up 03:14:45 - 03:44:45 -6507
Laughlin/Bullhead City 03:29:48 -31.7 Dark Down 52.5 94.9 Up 03:14:48 - 03:44:48 -6517
Kingman/Dolan Springs 03:29:46 -32.1 Dark Down 53.0 95.2 Up 03:14:46 - 03:44:46 -6526
Wildwood 03:30:00 -28.4 Dark Down 49.3 91.1 Up 03:15:00 - 03:45:00 -6540
Mohave Valley 03:29:48 -31.7 Dark Down 52.6 94.5 Up 03:14:48 - 03:44:48 -6546
DCO 03:29:43 -32.9 Dark Down 53.7 95.7 Up 03:14:43 - 03:44:43 -6553
Lake Havasu City 03:29:48 -31.9 Dark Down 52.8 94.1 Up 03:14:48 - 03:44:48 -6593
Idyllwild 03:29:56 -29.9 Dark Down 50.9 91.7 Up 03:14:56 - 03:44:56 -6621
Parker 03:29:48 -31.9 Dark Down 52.9 93.7 Up 03:14:48 - 03:44:48 -6631
Blythe 03:29:49 -31.6 Dark Down 52.6 92.8 Up 03:14:49 - 03:44:49 -6680
Calipatria 03:29:53 -30.8 Dark Down 51.9 91.6 Up 03:14:53 - 03:44:53 -6711
Yuma 03:29:51 -31.5 Dark Down 52.7 91.6 Up 03:14:51 - 03:44:51 -6776

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, (2020/01/20 03:27UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.1 +28:01:33  1.1 16.23 129
Alhena         06:37:42.8 +16:23:57  1.9  8.16 144
PPM 096264     06:37:27.2 +24:35:27  6.5  0.67 144
PPM 096208     06:34:54.5 +24:17:49  9.9  0.25 144
PPM 096212     06:35:02.8 +24:38:05 10.6  0.16 144
02WL21         06:34:31.6 +24:31:47 14.9       145
Positions are for J2000

Event circumstances last updated at 2018/10/25 20:49:26 UT

Marc W. Buie, Southwest Research Institute

RECON