RECON: TNO occultation with 523706

Event between (523706) 14HF200 and star GA0620:07777030 with event index number of 323855

Geocentric closest approach at 2019/06/12 04:32:48 UTC

J2000 position of star is 16:00:26.0 -27:30:53
Equinox of date position of star is 16:01:37.5 -27:34:06
Stellar brightness G=17.3, use SENSEUP=128
Star is 49 degrees from the moon. Moon is 71% illuminated.
TNO apparent brightness V=21.6

[RECON map]
TNO is 37.0 AU from the Sun and 36.0 AU from the Earth.
The TNO is moving 22.4 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 158 seconds.
The 1-sigma cross-track error in the shadow position is 2164 km.
The sky-plane scale is 26137.8 km/arcsec.

The TNO has an absolute magnitude Hv=5.9
Diameter=398.1 km assuming a 5% albedo -- 17.8 sec chord
Diameter=162.5 km assuming a 30% albedo -- 7.3 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 523706, (2019/06/12 04:33UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.2 -26:28:25  0.9  6.54  54
7Del Sco       16:01:29.2 -22:40:32  2.3  4.89  47
PPM 265058     16:04:31.4 -25:55:05  4.2  1.77  49
PPM 264994     16:02:15.5 -27:06:06  8.1  0.49  49
PPM 264987     16:01:54.4 -27:31:29 10.0  0.08  49
523706         16:01:37.6 -27:34:07 17.3        49
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 15.0 km RECON observability=0.2 and success probability=8.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 04:35:17 -4.4 CT Up 8.0 153.0 Really Low 04:21:38 - 04:48:56 -1250
Niwot 04:34:45 -18.2 Dark Up 20.7 164.5 Low 04:21:06 - 04:48:24 -1251
SwRI 04:34:45 -18.3 Dark Up 20.8 164.4 Low 04:21:06 - 04:48:24 -1258
Penticton 04:35:18 -4.6 CT Up 8.3 152.8 Really Low 04:21:39 - 04:48:57 -1268
Summerland 04:35:18 -4.5 CT Up 8.2 152.8 Really Low 04:21:39 - 04:48:57 -1269
Okanagan Falls 04:35:19 -4.7 CT Up 8.4 152.8 Really Low 04:21:40 - 04:48:58 -1276
Oliver 04:35:19 -4.8 CT Up 8.6 152.8 Really Low 04:21:40 - 04:48:58 -1282
Anarchist Mountain Observatory 04:35:19 -5.0 CT Up 8.8 153.0 Really Low 04:21:40 - 04:48:58 -1283
Oroville 04:35:19 -5.0 CT Up 8.8 152.9 Really Low 04:21:40 - 04:48:58 -1288
Tonasket 04:35:19 -5.2 CT Up 9.1 152.9 Really Low 04:21:40 - 04:48:58 -1298
Okanogan 04:35:20 -5.4 CT Up 9.3 152.7 Really Low 04:21:41 - 04:48:59 -1316
Brewster 04:35:21 -5.5 CT Up 9.5 152.6 Really Low 04:21:42 - 04:49:00 -1333
Manson/Chelan 04:35:23 -5.4 CT Up 9.6 152.2 Really Low 04:21:44 - 04:49:02 -1353
Entiat 04:35:23 -5.6 CT Up 9.7 152.2 Really Low 04:21:44 - 04:49:02 -1364
Wenatchee 04:35:24 -5.7 CT Up 9.9 152.1 Really Low 04:21:45 - 04:49:03 -1378
Pasco 04:35:22 -7.1 NT Up 11.3 153.0 Really Low 04:21:43 - 04:49:01 -1390
PNWRO 04:35:22 -7.4 NT Up 11.6 153.1 Really Low 04:21:43 - 04:49:01 -1394
Ellensburg 04:35:24 -5.9 CT Up 10.2 151.8 Really Low 04:21:45 - 04:49:03 -1403
George/Umatilla 04:35:23 -7.2 NT Up 11.6 152.8 Really Low 04:21:44 - 04:49:02 -1412
Yakima 04:35:25 -6.1 NT Up 10.6 151.8 Really Low 04:21:46 - 04:49:04 -1421
Toppenish/White Swan 04:35:25 -6.4 NT Up 10.8 151.9 Really Low 04:21:46 - 04:49:04 -1425
Goldendale 04:35:27 -6.5 NT Up 11.2 151.5 Really Low 04:21:48 - 04:49:06 -1463
The Dalles 04:35:28 -6.5 NT Up 11.2 151.2 Really Low 04:21:49 - 04:49:07 -1486
Maupin 04:35:29 -6.8 NT Up 11.7 151.2 Really Low 04:21:50 - 04:49:08 -1501
Madras/Culver 04:35:30 -7.2 NT Up 12.1 151.2 Really Low 04:21:51 - 04:49:09 -1528
Redmond 04:35:30 -7.4 NT Up 12.4 151.1 Really Low 04:21:51 - 04:49:09 -1547
Sisters 04:35:32 -7.2 NT Up 12.3 150.7 Really Low 04:21:53 - 04:49:11 -1559
Bend 04:35:31 -7.5 NT Up 12.6 150.9 Really Low 04:21:52 - 04:49:10 -1562
Oregon Observatory 04:35:32 -7.5 NT Up 12.7 150.8 Really Low 04:21:53 - 04:49:11 -1575
La Pine/Gilchrist 04:35:32 -7.6 NT Up 12.8 150.7 Really Low 04:21:53 - 04:49:11 -1587
North Lake 04:35:31 -8.3 NT Up 13.4 151.2 Really Low 04:21:52 - 04:49:10 -1588
Paisley 04:35:31 -8.8 NT Up 14.0 151.4 Really Low 04:21:52 - 04:49:10 -1603
Lakeview 04:35:31 -9.3 NT Up 14.5 151.5 Really Low 04:21:52 - 04:49:10 -1622
Cedarville 04:35:31 -9.8 NT Up 15.2 151.6 Really Low 04:21:52 - 04:49:10 -1650
Chiloquin 04:35:35 -8.2 NT Up 13.7 150.3 Really Low 04:21:56 - 04:49:14 -1655
Klamath Falls 04:35:35 -8.5 NT Up 14.0 150.3 Really Low 04:21:56 - 04:49:14 -1669
Tulelake 04:35:34 -8.8 NT Up 14.3 150.6 Really Low 04:21:55 - 04:49:13 -1673
Fall River/Burney 04:35:35 -9.5 NT Up 15.2 150.5 Really Low 04:21:56 - 04:49:14 -1717
Susanville 04:35:34 -10.3 NT Up 16.0 151.0 Really Low 04:21:55 - 04:49:13 -1725
Tonopah 04:35:27 -13.9 AT Up 19.3 153.6 Really Low 04:21:48 - 04:49:06 -1733
Reno 04:35:33 -11.4 NT Up 17.1 151.6 Really Low 04:21:54 - 04:49:12 -1742
Gimple 04:35:35 -10.4 NT Up 16.1 150.8 Really Low 04:21:56 - 04:49:14 -1747
Yerington 04:35:31 -12.1 AT Up 17.8 152.1 Really Low 04:21:52 - 04:49:10 -1750
Greenville 04:35:35 -10.4 NT Up 16.1 150.8 Really Low 04:21:56 - 04:49:14 -1750
Portola 04:35:34 -10.8 NT Up 16.6 151.1 Really Low 04:21:55 - 04:49:13 -1751
Hawthorne 04:35:30 -12.8 AT Up 18.4 152.5 Really Low 04:21:51 - 04:49:09 -1757
DCO 04:35:15 -18.2 Dark Up 23.3 156.7 Low 04:21:36 - 04:48:54 -1760
Quincy 04:35:36 -10.5 NT Up 16.3 150.7 Really Low 04:21:57 - 04:49:15 -1761
Carson City 04:35:33 -11.6 NT Up 17.4 151.6 Really Low 04:21:54 - 04:49:12 -1761
Indian Springs 04:35:22 -15.8 AT Up 21.2 154.7 Low 04:21:43 - 04:49:01 -1763
Patrick 04:35:18 -17.6 AT Up 22.8 156.1 Low 04:21:39 - 04:48:57 -1767
Henderson 04:35:21 -16.5 AT Up 21.9 155.2 Low 04:21:42 - 04:49:00 -1769
Gardnerville 04:35:33 -11.8 NT Up 17.6 151.6 Really Low 04:21:54 - 04:49:12 -1773
Beatty 04:35:26 -14.9 AT Up 20.5 153.8 Low 04:21:47 - 04:49:05 -1782
Kingman/Dolan Springs 04:35:18 -17.7 AT Up 23.0 155.9 Low 04:21:39 - 04:48:57 -1786
Searchlight/Boulder City 04:35:21 -17.0 AT Up 22.4 155.2 Low 04:21:42 - 04:49:00 -1800
Laughlin/Bullhead City 04:35:20 -17.4 AT Up 22.8 155.4 Low 04:21:41 - 04:48:59 -1805
Lee Vining 04:35:33 -12.9 AT Up 18.7 152.0 Really Low 04:21:54 - 04:49:12 -1805
Bishop 04:35:31 -13.7 AT Up 19.5 152.5 Really Low 04:21:52 - 04:49:10 -1813
Mohave Valley 04:35:21 -17.6 AT Up 23.1 155.4 Low 04:21:42 - 04:49:00 -1821
Lake Havasu City 04:35:20 -18.0 Dark Up 23.5 155.5 Low 04:21:41 - 04:48:59 -1836
Lone Pine 04:35:31 -14.4 AT Up 20.3 152.7 Low 04:21:52 - 04:49:10 -1845
Parker 04:35:20 -18.3 Dark Up 23.8 155.5 Low 04:21:41 - 04:48:59 -1856
Blythe 04:35:21 -18.5 Dark Up 24.2 155.1 Low 04:21:42 - 04:49:00 -1898
Yuma 04:35:22 -19.2 Dark Up 25.0 154.9 Low 04:21:43 - 04:49:01 -1956
Calipatria 04:35:25 -18.3 Dark Up 24.3 154.2 Low 04:21:46 - 04:49:04 -1962
Idyllwild 04:35:28 -17.2 AT Up 23.3 153.3 Low 04:21:49 - 04:49:07 -1967
Wildwood 04:35:34 -15.8 AT Up 22.3 151.7 Low 04:21:55 - 04:49:13 -2015
CPSLO 04:35:40 -13.8 AT Up 20.4 150.2 Low 04:22:01 - 04:49:19 -2017

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 523706, (2019/06/12 04:33UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  6.54  54
7Del Sco       16:00:20.0 -22:37:18  2.3  4.89  47
PPM 265058     16:03:20.5 -25:51:56  4.2  1.77  49
PPM 264994     16:01:04.2 -27:02:53  8.1  0.49  49
PPM 264987     16:00:42.9 -27:28:16 10.0  0.08  49
523706         16:00:26.0 -27:30:53 17.3        49
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:15:07 UT

Marc W. Buie, Southwest Research Institute

RECON