RECON: TNO occultation with 05EZ300

Event between 05EZ300 and star GA0760:04765485 with event index number of 250707

Geocentric closest approach at 2020/03/21 07:35:51 UTC

J2000 position of star is 13:13:18.5 -12:27:16
Equinox of date position of star is 13:14:19.0 -12:33:19
Stellar brightness G=15.4, use SENSEUP=128
Star is 125 degrees from the moon. Moon is 9% illuminated.
TNO apparent brightness V=22.7

[RECON map]
TNO is 32.2 AU from the Sun and 31.2 AU from the Earth.
The TNO is moving 22.3 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 79 seconds.
The 1-sigma cross-track error in the shadow position is 1524 km.
The sky-plane scale is 22649.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.6
Diameter=185.4 km assuming a 5% albedo -- 8.3 sec chord
Diameter=75.7 km assuming a 30% albedo -- 3.4 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 05EZ300, (2020/03/21 07:36UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:15.7 -11:15:58  1.0  3.18 123
49 Vir         13:08:57.5 -10:50:53  4.9  2.17 127
PPM 227033     13:16:58.1 -12:27:24  7.3  0.64 125
PPM 226959     13:14:20.8 -12:30:51  9.5  0.05 125
05EZ300        13:14:22.6 -12:33:40 15.4       125
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 5.0 sigma about the mid-time.
The median site spacing is 12.1 km RECON observability=1.0 and success probability=16.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 07:38:18 -39.3 Dark Down 24.2 154.3 Low 07:31:11 - 07:45:25 -762
Summerland 07:38:19 -39.3 Dark Down 24.2 154.0 Low 07:31:12 - 07:45:26 -775
Penticton 07:38:19 -39.7 Dark Down 24.5 154.1 Low 07:31:12 - 07:45:26 -789
Okanagan Falls 07:38:19 -39.9 Dark Down 24.7 154.0 Low 07:31:12 - 07:45:26 -801
Oliver 07:38:19 -40.0 Dark Down 24.8 154.0 Low 07:31:12 - 07:45:26 -811
Anarchist Mountain Observatory 07:38:19 -40.2 Dark Down 25.0 154.2 Low 07:31:12 - 07:45:26 -817
Oroville 07:38:19 -40.3 Dark Down 25.1 154.1 Low 07:31:12 - 07:45:26 -823
Tonasket 07:38:19 -40.5 Dark Down 25.3 154.1 Low 07:31:12 - 07:45:26 -838
Okanogan 07:38:20 -40.8 Dark Down 25.5 153.8 Low 07:31:13 - 07:45:27 -863
Brewster 07:38:21 -41.1 Dark Down 25.7 153.6 Low 07:31:14 - 07:45:28 -885
Manson/Chelan 07:38:22 -41.2 Dark Down 25.8 153.2 Low 07:31:15 - 07:45:29 -909
Entiat 07:38:22 -41.4 Dark Down 26.0 153.0 Low 07:31:15 - 07:45:29 -925
Wenatchee 07:38:22 -41.7 Dark Down 26.2 152.9 Low 07:31:15 - 07:45:29 -944
Ellensburg 07:38:24 -42.1 Dark Down 26.5 152.6 Low 07:31:17 - 07:45:31 -977
Pasco 07:38:20 -43.0 Dark Down 27.6 153.9 Low 07:31:13 - 07:45:27 -987
PNWRO 07:38:20 -43.2 Dark Down 27.9 154.0 Low 07:31:13 - 07:45:27 -997
Yakima 07:38:24 -42.5 Dark Down 26.8 152.4 Low 07:31:17 - 07:45:31 -1004
Niwot 07:37:36 -48.9 Dark Down 36.7 168.0 Up 07:30:29 - 07:44:43 -1008
Toppenish/White Swan 07:38:23 -42.7 Dark Down 27.1 152.6 Low 07:31:16 - 07:45:30 -1014
George/Umatilla 07:38:21 -43.3 Dark Down 27.8 153.5 Low 07:31:14 - 07:45:28 -1015
SwRI 07:37:36 -49.0 Dark Down 36.7 167.9 Up 07:30:29 - 07:44:43 -1018
Goldendale 07:38:25 -43.2 Dark Down 27.4 152.0 Low 07:31:18 - 07:45:32 -1063
The Dalles 07:38:26 -43.4 Dark Down 27.5 151.6 Low 07:31:19 - 07:45:33 -1088
Maupin 07:38:27 -43.8 Dark Down 27.9 151.6 Low 07:31:20 - 07:45:34 -1114
Madras/Culver 07:38:27 -44.3 Dark Down 28.4 151.4 Low 07:31:20 - 07:45:34 -1153
Redmond 07:38:27 -44.7 Dark Down 28.7 151.3 Low 07:31:20 - 07:45:34 -1179
Sisters 07:38:28 -44.6 Dark Down 28.5 150.8 Low 07:31:21 - 07:45:35 -1189
Bend 07:38:28 -44.8 Dark Down 28.8 151.1 Low 07:31:21 - 07:45:35 -1198
Oregon Observatory 07:38:29 -45.0 Dark Down 28.9 150.9 Low 07:31:22 - 07:45:36 -1214
La Pine/Gilchrist 07:38:29 -45.2 Dark Down 29.1 150.8 Low 07:31:22 - 07:45:36 -1230
North Lake 07:38:27 -45.7 Dark Down 29.7 151.3 Low 07:31:20 - 07:45:34 -1244
Paisley 07:38:26 -46.3 Dark Down 30.3 151.5 Up 07:31:19 - 07:45:33 -1272
Lakeview 07:38:26 -46.8 Dark Down 30.8 151.5 Up 07:31:19 - 07:45:33 -1303
Chiloquin 07:38:30 -46.2 Dark Down 29.9 150.1 Low 07:31:23 - 07:45:37 -1320
Klamath Falls 07:38:30 -46.6 Dark Down 30.3 150.1 Up 07:31:23 - 07:45:37 -1343
Cedarville 07:38:26 -47.5 Dark Down 31.4 151.5 Up 07:31:19 - 07:45:33 -1345
Tulelake 07:38:29 -46.9 Dark Down 30.6 150.3 Up 07:31:22 - 07:45:36 -1353
Fall River/Burney 07:38:30 -47.8 Dark Down 31.4 150.1 Up 07:31:23 - 07:45:37 -1418
Susanville 07:38:28 -48.5 Dark Down 32.2 150.7 Up 07:31:21 - 07:45:35 -1442
Gimple 07:38:28 -48.8 Dark Down 32.4 150.4 Up 07:31:21 - 07:45:35 -1469
Greenville 07:38:29 -48.7 Dark Down 32.4 150.3 Up 07:31:22 - 07:45:36 -1472
Portola 07:38:27 -49.1 Dark Down 32.8 150.7 Up 07:31:20 - 07:45:34 -1481
Reno 07:38:25 -49.5 Dark Down 33.3 151.3 Up 07:31:18 - 07:45:32 -1482
Quincy 07:38:29 -48.9 Dark Down 32.6 150.2 Up 07:31:22 - 07:45:36 -1487
Yerington 07:38:23 -50.1 Dark Down 34.0 151.8 Up 07:31:16 - 07:45:30 -1503
Carson City 07:38:25 -49.8 Dark Down 33.6 151.2 Up 07:31:18 - 07:45:32 -1508
Tonopah 07:38:17 -51.3 Dark Down 35.6 153.7 Up 07:31:10 - 07:45:24 -1513
Hawthorne 07:38:22 -50.7 Dark Down 34.6 152.3 Up 07:31:15 - 07:45:29 -1522
Gardnerville 07:38:26 -50.1 Dark Down 33.9 151.2 Up 07:31:19 - 07:45:33 -1525
Indian Springs 07:38:12 -52.9 Dark Down 37.4 154.9 Up 07:31:05 - 07:45:19 -1579
Lee Vining 07:38:24 -51.1 Dark Down 35.0 151.6 Up 07:31:17 - 07:45:31 -1580
Beatty 07:38:16 -52.5 Dark Down 36.8 153.8 Up 07:31:09 - 07:45:23 -1588
Henderson 07:38:10 -53.4 Dark Down 38.1 155.5 Up 07:31:03 - 07:45:17 -1598
Bishop 07:38:21 -51.8 Dark Down 35.8 152.1 Up 07:31:14 - 07:45:28 -1603
Patrick 07:38:06 -54.1 Dark Down 39.1 156.6 Up 07:30:59 - 07:45:13 -1611
DCO 07:38:03 -54.4 Dark Down 39.6 157.4 Up 07:30:56 - 07:45:10 -1613
Kingman/Dolan Springs 07:38:06 -54.3 Dark Down 39.2 156.3 Up 07:30:59 - 07:45:13 -1635
Searchlight/Boulder City 07:38:10 -54.0 Dark Down 38.7 155.4 Up 07:31:03 - 07:45:17 -1641
Lone Pine 07:38:20 -52.6 Dark Down 36.6 152.3 Up 07:31:13 - 07:45:27 -1652
Laughlin/Bullhead City 07:38:08 -54.3 Dark Down 39.1 155.7 Up 07:31:01 - 07:45:15 -1653
Mohave Valley 07:38:08 -54.6 Dark Down 39.3 155.6 Up 07:31:01 - 07:45:15 -1674
Lake Havasu City 07:38:07 -55.0 Dark Down 39.8 155.8 Up 07:31:00 - 07:45:14 -1698
Parker 07:38:07 -55.4 Dark Down 40.1 155.7 Up 07:31:00 - 07:45:14 -1725
Blythe 07:38:08 -55.9 Dark Down 40.5 155.2 Up 07:31:01 - 07:45:15 -1776
Idyllwild 07:38:16 -55.6 Dark Down 39.6 152.7 Up 07:31:09 - 07:45:23 -1836
CPSLO 07:38:29 -53.5 Dark Down 36.7 148.9 Up 07:31:22 - 07:45:36 -1838
Calipatria 07:38:12 -56.3 Dark Down 40.6 153.9 Up 07:31:05 - 07:45:19 -1846
Yuma 07:38:07 -56.8 Dark Down 41.3 154.8 Up 07:31:00 - 07:45:14 -1852
Wildwood 07:38:22 -55.0 Dark Down 38.5 150.7 Up 07:31:15 - 07:45:29 -1869

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 05EZ300, (2020/03/21 07:36UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0  3.18 123
49 Vir         13:07:53.8 -10:44:26  4.9  2.17 127
PPM 227033     13:15:54.0 -12:21:01  7.3  0.64 125
PPM 226959     13:13:16.7 -12:24:27  9.5  0.05 125
05EZ300        13:13:18.5 -12:27:16 15.4       125
Positions are for J2000

Event circumstances last updated at 2019/01/29 03:48:16 UT

Marc W. Buie, Southwest Research Institute

RECON