RECON: TNO occultation with 13HV156

Event between 13HV156 and star GA0840:05260948 with event index number of 252662

Geocentric closest approach at 2020/03/05 12:50:26 UTC

J2000 position of star is 16:53:12.7 -04:25:05
Equinox of date position of star is 16:54:14.0 -04:26:56
Stellar brightness G=14.1, use SENSEUP=64
Star is 140 degrees from the moon. Moon is 77% illuminated.
TNO apparent brightness V=22.1

[RECON map]
TNO is 47.5 AU from the Sun and 47.4 AU from the Earth.
The TNO is moving 10.0 km/sec on the sky relative to the star, or, 1.0 arcsec/hr.
The 1-sigma error in the time of the event is 188 seconds.
The 1-sigma cross-track error in the shadow position is 2528 km.
The sky-plane scale is 34407.9 km/arcsec.

The TNO has an absolute magnitude Hv=5.2
Diameter=539.5 km assuming a 5% albedo -- 54.0 sec chord
Diameter=220.3 km assuming a 30% albedo -- 22.1 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 13HV156, (2020/03/05 12:50UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:38.9 -26:28:30  0.9 22.74 142
13Zet Oph      16:38:16.3 -10:36:23  2.6  7.32 139
23 Oph         16:55:40.5 -06:11:08  5.3  1.77 141
PPM 200130     16:54:49.1 -04:21:14  7.8  0.17 140
PPM 200123     16:54:34.7 -04:29:56  9.5  0.09 140
13HV156        16:54:16.8 -04:27:01 14.1       140
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 4.8 sigma about the mid-time.
The median site spacing is 3.8 km RECON observability=0.8 and success probability=6.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Chiloquin 12:56:26 -19.0 Dark Down 40.5 157.0 Up 12:41:26 - 13:11:26 1862
Sisters 12:56:40 -18.4 Dark Down 39.0 158.0 Up 12:41:40 - 13:11:40 1860
Klamath Falls 12:56:23 -19.0 Dark Down 40.8 157.0 Up 12:41:23 - 13:11:23 1853
La Pine/Gilchrist 12:56:35 -18.5 Dark Down 39.5 157.9 Up 12:41:35 - 13:11:35 1849
Oregon Observatory 12:56:37 -18.4 Dark Down 39.4 158.0 Up 12:41:37 - 13:11:37 1847
The Dalles 12:56:52 -17.9 AT Down 37.9 158.9 Up 12:41:52 - 13:11:52 1846
Bend 12:56:38 -18.3 Dark Down 39.2 158.3 Up 12:41:38 - 13:11:38 1840
Maupin 12:56:49 -17.9 AT Down 38.3 158.9 Up 12:41:49 - 13:11:49 1835
Madras/Culver 12:56:44 -18.1 Dark Down 38.8 158.7 Up 12:41:44 - 13:11:44 1832
Redmond 12:56:41 -18.2 Dark Down 39.1 158.5 Up 12:41:41 - 13:11:41 1832
Tulelake 12:56:21 -18.8 Dark Down 41.1 157.3 Up 12:41:21 - 13:11:21 1828
Goldendale 12:56:53 -17.6 AT Down 37.7 159.4 Up 12:41:53 - 13:11:53 1823
Ellensburg 12:57:03 -17.2 AT Down 36.7 160.1 Up 12:42:03 - 13:12:03 1815
Yakima 12:57:01 -17.3 AT Down 37.1 160.0 Up 12:42:01 - 13:12:01 1813
Fall River/Burney 12:56:15 -18.9 Dark Down 42.0 157.0 Up 12:41:15 - 13:11:15 1811
Wenatchee 12:57:04 -17.0 AT Down 36.4 160.5 Up 12:42:04 - 13:12:04 1804
North Lake 12:56:34 -18.2 Dark Down 40.1 158.5 Up 12:41:34 - 13:11:34 1802
Entiat 12:57:07 -16.8 AT Down 36.2 160.7 Up 12:42:07 - 13:12:07 1800
Toppenish/White Swan 12:56:57 -17.2 AT Down 37.3 160.1 Up 12:41:57 - 13:11:57 1799
Manson/Chelan 12:57:08 -16.8 AT Down 36.0 160.9 Up 12:42:08 - 13:12:08 1797
Summerland 12:57:22 -16.1 AT Down 34.5 161.9 Up 12:42:22 - 13:12:22 1779
Brewster 12:57:14 -16.5 AT Down 35.9 161.4 Up 12:42:14 - 13:12:14 1775
Penticton 12:57:22 -16.0 AT Down 34.5 162.0 Up 12:42:22 - 13:12:22 1771
Okanagan Falls 12:57:22 -16.1 AT Down 34.7 161.9 Up 12:42:22 - 13:12:22 1771
Paisley 12:56:31 -18.0 AT Down 40.7 158.8 Up 12:41:31 - 13:11:31 1770
Oliver 12:57:22 -16.1 AT Down 34.9 161.9 Up 12:42:22 - 13:12:22 1768
Greenville 12:56:09 -18.8 Dark Down 42.9 157.3 Up 12:41:09 - 13:11:09 1766
Okanogan 12:57:15 -16.3 AT Down 35.6 161.7 Up 12:42:15 - 13:12:15 1764
Quincy 12:56:07 -18.8 Dark Down 43.1 157.2 Up 12:41:07 - 13:11:07 1763
Kelowna 12:57:25 -15.9 AT Down 34.2 162.3 Up 12:42:25 - 13:12:25 1763
Gimple 12:56:09 -18.7 Dark Down 43.0 157.4 Up 12:41:09 - 13:11:09 1760
Oroville 12:57:17 -16.1 AT Down 35.1 162.0 Up 12:42:17 - 13:12:17 1759
Tonasket 12:57:19 -16.1 AT Down 35.4 162.0 Up 12:42:19 - 13:12:19 1757
Anarchist Mountain Observatory 12:57:22 -16.0 AT Down 35.1 162.1 Up 12:42:22 - 13:12:22 1755
Lakeview 12:56:28 -17.9 AT Down 41.2 158.8 Up 12:41:28 - 13:11:28 1750
Susanville 12:56:10 -18.5 Dark Down 42.8 157.8 Up 12:41:10 - 13:11:10 1749
Cedarville 12:56:23 -17.9 AT Down 41.9 158.8 Up 12:41:23 - 13:11:23 1729
Portola 12:56:08 -18.4 Dark Down 43.4 157.8 Up 12:41:08 - 13:11:08 1726
George/Umatilla 12:56:59 -16.6 AT Down 38.0 161.3 Up 12:41:59 - 13:11:59 1724
Pasco 12:57:03 -16.3 AT Down 37.7 161.7 Up 12:42:03 - 13:12:03 1713
PNWRO 12:57:02 -16.2 AT Down 38.0 161.9 Up 12:42:02 - 13:12:02 1695
Reno 12:56:05 -18.0 AT Down 43.8 158.5 Up 12:41:05 - 13:11:05 1674
Carson City 12:56:03 -18.0 Dark Down 44.2 158.4 Up 12:41:03 - 13:11:03 1667
CPSLO 12:55:29 -19.3 Dark Down 47.4 155.5 Up 12:40:29 - 13:10:29 1666
Gardnerville 12:56:02 -18.0 Dark Down 44.4 158.4 Up 12:41:02 - 13:11:02 1659
Yerington 12:56:06 -17.6 AT Down 44.5 159.2 Up 12:41:06 - 13:11:06 1615
Lee Vining 12:55:58 -17.7 AT Down 45.5 158.8 Up 12:40:58 - 13:10:58 1594
Hawthorne 12:56:04 -17.2 AT Down 45.1 159.8 Up 12:41:04 - 13:11:04 1567
Bishop 12:55:55 -17.2 AT Down 46.2 159.6 Up 12:40:55 - 13:10:55 1528
Lone Pine 12:55:50 -17.0 AT Down 47.0 159.8 Up 12:40:50 - 13:10:50 1487
Wildwood 12:55:25 -17.8 AT Down 49.2 157.8 Up 12:40:25 - 13:10:25 1479
Tonopah 12:56:05 -16.1 AT Down 45.9 161.6 Up 12:41:05 - 13:11:05 1449
Beatty 12:55:57 -15.9 AT Down 47.1 161.8 Up 12:40:57 - 13:10:57 1390
Idyllwild 12:55:31 -16.2 AT Down 50.1 160.5 Up 12:40:31 - 13:10:31 1317
Indian Springs 12:55:59 -15.1 AT Down 47.7 163.2 Up 12:40:59 - 13:10:59 1298
Henderson 12:55:57 -14.6 AT Down 48.4 164.0 Up 12:40:57 - 13:10:57 1230
Searchlight/Boulder City 12:55:53 -14.6 AT Down 48.9 163.9 Up 12:40:53 - 13:10:53 1212
Calipatria 12:55:30 -15.3 AT Down 51.0 162.1 Up 12:40:30 - 13:10:30 1204
Laughlin/Bullhead City 12:55:51 -14.3 AT Down 49.3 164.3 Up 12:40:51 - 13:10:51 1177
Mohave Valley 12:55:49 -14.3 AT Down 49.5 164.2 Up 12:40:49 - 13:10:49 1169
Blythe 12:55:38 -14.4 AT Down 50.7 163.7 Up 12:40:38 - 13:10:38 1139
Lake Havasu City 12:55:47 -14.1 AT Down 50.0 164.5 Up 12:40:47 - 13:10:47 1139
Kingman/Dolan Springs 12:55:54 -13.9 AT Down 49.4 165.1 Up 12:40:54 - 13:10:54 1135
Parker 12:55:44 -14.1 AT Down 50.3 164.4 Up 12:40:44 - 13:10:44 1127
Patrick 12:55:56 -13.7 AT Down 49.2 165.5 Up 12:40:56 - 13:10:56 1125
Yuma 12:55:30 -14.5 AT Down 51.6 163.3 Up 12:40:30 - 13:10:30 1118
DCO 12:55:56 -13.1 AT Down 49.6 166.5 Up 12:40:56 - 13:10:56 1059
SwRI 12:57:04 -6.6 NT Down 45.6 179.2 Up 12:42:04 - 13:12:04 568
Niwot 12:57:04 -6.6 NT Down 45.5 179.3 Up 12:42:04 - 13:12:04 564

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 13HV156, (2020/03/05 12:50UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 22.74 142
13Zet Oph      16:37:09.6 -10:34:01  2.6  7.32 139
23 Oph         16:54:35.6 -06:09:15  5.3  1.77 141
PPM 200130     16:53:45.1 -04:19:20  7.8  0.17 140
PPM 200123     16:53:30.6 -04:28:02  9.5  0.09 140
13HV156        16:53:12.7 -04:25:05 14.1       140
Positions are for J2000

Event circumstances last updated at 2019/04/25 23:24:18 UT

Marc W. Buie, Southwest Research Institute

RECON