RECON: TNO occultation with 09KN30

Event between 09KN30 and star GA0640:28782063 with event index number of 271620

Geocentric closest approach at 2020/06/30 05:06:31 UTC

J2000 position of star is 18:23:41.8 -24:05:36
Equinox of date position of star is 18:24:55.8 -24:04:54
Stellar brightness G=16.8, use SENSEUP=128
Star is 62 degrees from the moon. Moon is 71% illuminated.
TNO apparent brightness V=25.3

[RECON map]
TNO is 34.0 AU from the Sun and 33.0 AU from the Earth.
The TNO is moving 23.2 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 304 seconds.
The 1-sigma cross-track error in the shadow position is 1497 km.
The sky-plane scale is 23900.8 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=156.3 km assuming a 5% albedo -- 2.6 sec chord
Diameter=63.8 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is 7:2EEEEE
 
 
 
 
 
 

Star training set for 09KN30, (2020/06/30 05:07UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:40.0 -26:28:33  0.9 25.89  37
Nunki          18:56:32.1 -26:16:10  2.0  7.47  69
PPM 268291     18:22:47.1 -24:54:15  6.0  0.96  61
PPM 268300     18:23:13.5 -23:15:50  8.5  0.91  61
PPM 268340     18:24:35.9 -24:00:27  9.1  0.11  62
09KN30         18:24:57.0 -24:04:53 16.8        62
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 3.0 sigma about the mid-time.
The median site spacing is 15.5 km RECON observability=0.3 and success probability=9.0%
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 05:08:18 -7.3 NT Up 7.9 144.2 Really Low 04:53:18 - 05:23:18 1864
Kelowna 05:08:20 -7.5 NT Up 8.1 144.0 Really Low 04:53:20 - 05:23:20 1847
Peachland 05:08:21 -7.5 NT Up 8.1 143.8 Really Low 04:53:21 - 05:23:21 1838
Summerland 05:08:21 -7.6 NT Up 8.3 143.8 Really Low 04:53:21 - 05:23:21 1834
Penticton 05:08:21 -7.7 NT Up 8.4 143.9 Really Low 04:53:21 - 05:23:21 1833
Oliver 05:08:22 -8.0 NT Up 8.7 143.9 Really Low 04:53:22 - 05:23:22 1820
Anarchist Mountain Observatory 05:08:21 -8.2 NT Up 8.9 144.0 Really Low 04:53:21 - 05:23:21 1817
Tonasket 05:08:22 -8.4 NT Up 9.1 144.0 Really Low 04:53:22 - 05:23:22 1803
Okanogan 05:08:23 -8.6 NT Up 9.3 143.8 Really Low 04:53:23 - 05:23:23 1787
Brewster 05:08:25 -8.8 NT Up 9.4 143.6 Really Low 04:53:25 - 05:23:25 1772
Manson/Chelan 05:08:26 -8.8 NT Up 9.5 143.3 Really Low 04:53:26 - 05:23:26 1757
Entiat 05:08:27 -8.9 NT Up 9.6 143.2 Really Low 04:53:27 - 05:23:27 1747
Wenatchee 05:08:27 -9.0 NT Up 9.8 143.1 Really Low 04:53:27 - 05:23:27 1734
Victoria 05:08:32 -6.9 NT Up 7.6 140.7 Really Low 04:53:32 - 05:23:32 1721
Ellensburg 05:08:29 -9.3 NT Up 10.0 142.9 Really Low 04:53:29 - 05:23:29 1713
Pasco 05:08:27 -10.5 NT Up 11.2 144.0 Really Low 04:53:27 - 05:23:27 1707
PNWRO 05:08:27 -10.8 NT Up 11.5 144.1 Really Low 04:53:27 - 05:23:27 1700
Yakima 05:08:30 -9.6 NT Up 10.3 142.8 Really Low 04:53:30 - 05:23:30 1695
Toppenish/White Swan 05:08:30 -9.8 NT Up 10.6 142.9 Really Low 04:53:30 - 05:23:30 1688
Goldendale 05:08:32 -10.0 NT Up 10.9 142.5 Really Low 04:53:32 - 05:23:32 1656
Niwot 05:07:57 -21.2 Dark Up 21.6 155.1 Low 04:52:57 - 05:22:57 1645
The Dalles 05:08:34 -10.0 NT Up 10.9 142.2 Really Low 04:53:34 - 05:23:34 1638
SwRI 05:07:58 -21.2 Dark Up 21.7 155.0 Low 04:52:58 - 05:22:58 1638
Maupin 05:08:34 -10.4 NT Up 11.3 142.3 Really Low 04:53:34 - 05:23:34 1621
Redmond 05:08:37 -11.1 NT Up 11.9 142.1 Really Low 04:53:37 - 05:23:37 1577
Sisters 05:08:38 -10.8 NT Up 11.7 141.7 Really Low 04:53:38 - 05:23:38 1571
Bend 05:08:38 -11.1 NT Up 12.0 141.9 Really Low 04:53:38 - 05:23:38 1565
Oregon Observatory 05:08:38 -11.2 NT Up 12.1 141.8 Really Low 04:53:38 - 05:23:38 1554
La Pine/Gilchrist 05:08:39 -11.3 NT Up 12.3 141.7 Really Low 04:53:39 - 05:23:39 1542
North Lake 05:08:38 -12.0 NT Up 12.9 142.2 Really Low 04:53:38 - 05:23:38 1534
Paisley 05:08:39 -12.5 AT Up 13.5 142.4 Really Low 04:53:39 - 05:23:39 1513
Lakeview 05:08:39 -13.0 AT Up 14.0 142.5 Really Low 04:53:39 - 05:23:39 1492
Klamath Falls 05:08:43 -12.3 AT Up 13.3 141.3 Really Low 04:53:43 - 05:23:43 1464
Cedarville 05:08:40 -13.6 AT Up 14.6 142.5 Really Low 04:53:40 - 05:23:40 1462
Fall River/Burney 05:08:44 -13.4 AT Up 14.4 141.4 Really Low 04:53:44 - 05:23:44 1411
Susanville 05:08:44 -14.2 AT Up 15.2 141.9 Really Low 04:53:44 - 05:23:44 1393
Gimple 05:08:45 -14.3 AT Up 15.3 141.7 Really Low 04:53:45 - 05:23:45 1373
Greenville 05:08:45 -14.3 AT Up 15.3 141.7 Really Low 04:53:45 - 05:23:45 1371
Portola 05:08:45 -14.8 AT Up 15.8 142.0 Really Low 04:53:45 - 05:23:45 1364
Reno 05:08:43 -15.3 AT Up 16.3 142.5 Really Low 04:53:43 - 05:23:43 1363
Quincy 05:08:46 -14.4 AT Up 15.5 141.6 Really Low 04:53:46 - 05:23:46 1360
Yerington 05:08:43 -16.0 AT Up 17.1 142.9 Really Low 04:53:43 - 05:23:43 1346
Carson City 05:08:44 -15.6 AT Up 16.6 142.4 Really Low 04:53:44 - 05:23:44 1344
Tonopah 05:08:39 -17.7 AT Up 18.7 144.3 Really Low 04:53:39 - 05:23:39 1334
Gardnerville 05:08:44 -15.8 AT Up 16.8 142.4 Really Low 04:53:44 - 05:23:44 1331
Hawthorne 05:08:42 -16.7 AT Up 17.7 143.3 Really Low 04:53:42 - 05:23:42 1331
Lee Vining 05:08:44 -16.8 AT Up 17.9 142.7 Really Low 04:53:44 - 05:23:44 1289
Indian Springs 05:08:36 -19.6 Dark Up 20.6 145.3 Low 04:53:36 - 05:23:36 1278
Beatty 05:08:39 -18.8 Dark Up 19.8 144.5 Really Low 04:53:39 - 05:23:39 1276
Bishop 05:08:43 -17.7 AT Up 18.7 143.2 Really Low 04:53:43 - 05:23:43 1270
Henderson 05:08:35 -20.4 Dark Up 21.4 145.8 Low 04:53:35 - 05:23:35 1260
Patrick 05:08:33 -21.4 Dark Up 22.4 146.6 Low 04:53:33 - 05:23:33 1245
DCO 05:08:31 -22.0 Dark Up 23.0 147.1 Low 04:53:31 - 05:23:31 1240
Kingman/Dolan Springs 05:08:34 -21.5 Dark Up 22.5 146.4 Low 04:53:34 - 05:23:34 1228
Searchlight/Boulder City 05:08:36 -20.9 Dark Up 21.9 145.7 Low 04:53:36 - 05:23:36 1228
Laughlin/Bullhead City 05:08:35 -21.3 Dark Up 22.3 145.9 Low 04:53:35 - 05:23:35 1216
Mohave Valley 05:08:36 -21.5 Dark Up 22.5 145.9 Low 04:53:36 - 05:23:36 1199
Lake Havasu City 05:08:35 -22.0 Dark Up 22.9 146.0 Low 04:53:35 - 05:23:35 1180
George/Scottsdale 05:08:28 -23.8 Dark Up 24.7 147.9 Low 04:53:28 - 05:23:28 1178
Parker 05:08:36 -22.2 Dark Up 23.3 145.9 Low 04:53:36 - 05:23:36 1158
Blythe 05:08:38 -22.5 Dark Up 23.6 145.5 Low 04:53:38 - 05:23:38 1120
CPSLO 05:08:54 -18.0 Dark Up 19.2 141.0 Really Low 04:53:54 - 05:23:54 1096
Idyllwild 05:08:45 -21.3 Dark Up 22.4 143.8 Low 04:53:45 - 05:23:45 1085
Calipatria 05:08:42 -22.4 Dark Up 23.5 144.6 Low 04:53:42 - 05:23:42 1070
Wildwood 05:08:50 -20.0 Dark Up 21.2 142.4 Low 04:53:50 - 05:23:50 1067
Yuma 05:08:39 -23.2 Dark Up 24.3 145.3 Low 04:53:39 - 05:23:39 1060

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 09KN30, (2020/06/30 05:07UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 25.89  37
Nunki          18:55:15.9 -26:17:49  2.0  7.47  69
PPM 268291     18:21:31.4 -24:54:54  6.0  0.96  61
PPM 268300     18:21:58.8 -23:16:30  8.5  0.91  61
PPM 268340     18:23:20.7 -24:01:10  9.1  0.11  62
09KN30         18:23:41.8 -24:05:36 16.8        62
Positions are for J2000

Event circumstances last updated at 2020/03/09 21:28:20 UT

Marc W. Buie, Southwest Research Institute

RECON