RECON: TNO occultation with 01HZ58

Event between 01HZ58 and star GA0700:06066440 with event index number of 1989389

Geocentric closest approach at 2021/06/06 06:15:16 UTC

J2000 position of star is 15:57:25.6 -19:03:28
Equinox of date position of star is 15:58:39.8 -19:07:05
Stellar brightness G=12.8, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 149 degrees from the moon. Moon is 15% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 43.8 AU from the Sun and 42.8 AU from the Earth.
The TNO is moving 24.1 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 184 seconds.
The 1-sigma cross-track error in the shadow position is 2368 km.
The sky-plane scale is 31046.0 km/arcsec.

The TNO has an absolute magnitude Hv=6.5
Diameter=299.2 km assuming a 5% albedo -- 12.4 sec chord
Diameter=122.2 km assuming a 30% albedo -- 5.1 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 01HZ58, (2021/06/06 06:15UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:43.5 -26:28:40  0.9 10.42 140
8Bet1Sco       16:06:41.2 -19:51:45  2.6  2.03 147
47 Lib         15:56:14.9 -19:26:40  5.9  0.66 149
PPM 230949     15:56:51.7 -18:51:09  8.2  0.50 149
PPM 230981     15:58:02.2 -18:57:22  9.5  0.22 149
01HZ58         15:58:40.0 -19:07:06 12.8       149
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 4.9 sigma about the mid-time.
The median site spacing is 13.8 km RECON observability=0.9 and success probability=9.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 06:16:30 -13.8 AT Down 20.2 170.3 Low 06:01:30 - 06:31:30 -597
Kelowna 06:16:31 -14.1 AT Down 20.5 170.1 Low 06:01:31 - 06:31:31 -616
Peachland 06:16:32 -14.2 AT Down 20.6 169.8 Low 06:01:32 - 06:31:32 -626
Summerland 06:16:32 -14.3 AT Down 20.8 169.9 Low 06:01:32 - 06:31:32 -631
Penticton 06:16:31 -14.4 AT Down 20.8 170.0 Low 06:01:31 - 06:31:31 -632
Oliver 06:16:31 -14.7 AT Down 21.2 170.0 Low 06:01:31 - 06:31:31 -647
Anarchist Mountain Observatory 06:16:31 -14.9 AT Down 21.4 170.1 Low 06:01:31 - 06:31:31 -651
Tonasket 06:16:31 -15.2 AT Down 21.7 170.1 Low 06:01:31 - 06:31:31 -666
Okanogan 06:16:32 -15.5 AT Down 22.0 169.9 Low 06:01:32 - 06:31:32 -684
Brewster 06:16:32 -15.7 AT Down 22.2 169.7 Low 06:01:32 - 06:31:32 -700
Manson/Chelan 06:16:34 -15.8 AT Down 22.4 169.3 Low 06:01:34 - 06:31:34 -716
Wenatchee 06:16:34 -16.1 AT Down 22.8 169.1 Low 06:01:34 - 06:31:34 -741
Victoria 06:16:43 -14.3 AT Down 21.3 166.1 Low 06:01:43 - 06:31:43 -747
Ellensburg 06:16:35 -16.5 AT Down 23.2 168.8 Low 06:01:35 - 06:31:35 -764
Pasco 06:16:31 -17.5 AT Down 24.1 170.2 Low 06:01:31 - 06:31:31 -774
PNWRO 06:16:30 -17.8 AT Down 24.4 170.4 Low 06:01:30 - 06:31:30 -782
Yakima 06:16:35 -16.8 AT Down 23.6 168.8 Low 06:01:35 - 06:31:35 -784
Toppenish/White Swan 06:16:35 -17.1 AT Down 23.9 168.9 Low 06:01:35 - 06:31:35 -792
Goldendale 06:16:36 -17.4 AT Down 24.3 168.4 Low 06:01:36 - 06:31:36 -827
The Dalles 06:16:37 -17.5 AT Down 24.5 168.0 Low 06:01:37 - 06:31:37 -845
Dunrhomin 06:15:44 -26.3 Dark Down 30.6 184.7 Up 06:00:44 - 06:30:44 -857
Maupin 06:16:37 -17.9 AT Down 24.9 168.1 Low 06:01:37 - 06:31:37 -864
Redmond 06:16:38 -18.7 Dark Down 25.8 167.9 Low 06:01:38 - 06:31:38 -912
Sisters 06:16:39 -18.6 Dark Down 25.7 167.5 Low 06:01:39 - 06:31:39 -919
Bend 06:16:38 -18.9 Dark Down 26.0 167.8 Low 06:01:38 - 06:31:38 -926
Oregon Observatory 06:16:39 -19.0 Dark Down 26.1 167.6 Low 06:01:39 - 06:31:39 -938
La Pine/Gilchrist 06:16:39 -19.2 Dark Down 26.3 167.5 Low 06:01:39 - 06:31:39 -950
North Lake 06:16:37 -19.7 Dark Down 26.8 168.1 Low 06:01:37 - 06:31:37 -961
Paisley 06:16:36 -20.4 Dark Down 27.4 168.4 Low 06:01:36 - 06:31:36 -984
Lakeview 06:16:35 -20.9 Dark Down 28.0 168.6 Low 06:01:35 - 06:31:35 -1008
Chiloquin 06:16:40 -20.0 Dark Down 27.4 167.0 Low 06:01:40 - 06:31:40 -1017
Klamath Falls 06:16:40 -20.4 Dark Down 27.7 167.1 Low 06:01:40 - 06:31:40 -1035
Cedarville 06:16:35 -21.5 Dark Down 28.6 168.7 Low 06:01:35 - 06:31:35 -1041
Fall River/Burney 06:16:39 -21.6 Dark Down 28.9 167.3 Low 06:01:39 - 06:31:39 -1094
Susanville 06:16:37 -22.4 Dark Down 29.7 168.1 Low 06:01:37 - 06:31:37 -1115
Gimple 06:16:37 -22.5 Dark Down 29.9 167.8 Low 06:01:37 - 06:31:37 -1136
Greenville 06:16:38 -22.5 Dark Down 29.9 167.7 Low 06:01:38 - 06:31:38 -1137
Portola 06:16:36 -23.0 Dark Down 30.3 168.2 Up 06:01:36 - 06:31:36 -1146
Reno 06:16:34 -23.4 Dark Down 30.6 168.8 Up 06:01:34 - 06:31:34 -1149
Quincy 06:16:38 -22.7 Dark Down 30.1 167.7 Up 06:01:38 - 06:31:38 -1149
Yerington 06:16:32 -24.1 Dark Down 31.3 169.5 Up 06:01:32 - 06:31:32 -1169
Carson City 06:16:34 -23.8 Dark Down 31.0 168.8 Up 06:01:34 - 06:31:34 -1170
Gardnerville 06:16:34 -24.0 Dark Down 31.2 168.8 Up 06:01:34 - 06:31:34 -1184
Tonopah 06:16:25 -25.6 Dark Down 32.4 171.5 Up 06:01:25 - 06:31:25 -1186
Hawthorne 06:16:30 -24.7 Dark Down 31.8 170.0 Up 06:01:30 - 06:31:30 -1186
Lee Vining 06:16:32 -25.1 Dark Down 32.3 169.4 Up 06:01:32 - 06:31:32 -1230
Indian Springs 06:16:20 -27.4 Dark Down 34.1 173.1 Up 06:01:20 - 06:31:20 -1249
Beatty 06:16:24 -26.8 Dark Down 33.6 171.9 Up 06:01:24 - 06:31:24 -1249
Bishop 06:16:25 -25.9 Dark Down 33.0 170.1 Up 06:01:25 - 06:31:25 -1257
Henderson 06:16:17 -28.1 Dark Down 34.7 173.8 Up 06:01:17 - 06:31:17 -1269
Patrick 06:16:13 -29.0 Dark Down 35.4 175.0 Up 06:01:13 - 06:31:13 -1288
Kingman/Dolan Springs 06:16:13 -29.2 Dark Down 35.6 174.8 Up 06:01:13 - 06:31:13 -1306
Laughlin/Bullhead City 06:16:15 -29.1 Dark Down 35.6 174.2 Up 06:01:15 - 06:31:15 -1318
Mohave Valley 06:16:15 -29.3 Dark Down 35.8 174.2 Up 06:01:15 - 06:31:15 -1335
Lake Havasu City 06:16:14 -29.8 Dark Down 36.3 174.5 Up 06:01:14 - 06:31:14 -1357
George/Scottsdale 06:16:05 -31.2 Dark Down 37.2 177.3 Up 06:01:05 - 06:31:05 -1361
Parker 06:16:14 -30.1 Dark Down 36.6 174.5 Up 06:01:14 - 06:31:14 -1379
Blythe 06:16:15 -30.5 Dark Down 37.1 174.1 Up 06:01:15 - 06:31:15 -1420
CPSLO 06:16:37 -26.9 Dark Down 34.6 167.4 Up 06:01:37 - 06:31:37 -1435
Idyllwild 06:16:23 -29.7 Dark Down 36.8 171.6 Up 06:01:23 - 06:31:23 -1454
Calipatria 06:16:18 -30.7 Dark Down 37.5 172.9 Up 06:01:18 - 06:31:18 -1472
Wildwood 06:16:25 -28.8 Dark Down 36.2 169.5 Up 06:01:25 - 06:31:25 -1475
Yuma 06:16:15 -31.4 Dark Down 38.0 174.0 Up 06:01:15 - 06:31:15 -1484

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 01HZ58, (2021/06/06 06:15UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 10.42 140
8Bet1Sco       16:05:26.2 -19:48:20  2.6  2.03 147
47 Lib         15:55:00.4 -19:22:59  5.9  0.66 149
PPM 230949     15:55:37.4 -18:47:28  8.2  0.50 149
PPM 230981     15:56:47.8 -18:53:43  9.5  0.22 149
01HZ58         15:57:25.6 -19:03:28 12.8       149
Positions are for J2000

Event circumstances last updated at 2021/05/17 01:02:37 UT

Marc W. Buie, Southwest Research Institute

RECON