RECON: TNO occultation with 04MT8

Event between 04MT8 and star GA0680:36044902 with event index number of 195290

Geocentric closest approach at 2019/06/23 11:06:10 UTC

J2000 position of star is 20:27:02.0 -20:32:29
Equinox of date position of star is 20:28:09.5 -20:28:35
Stellar brightness G=16.4, use SENSEUP=128
Star is 36 degrees from the moon. Moon is 68% illuminated.
TNO apparent brightness V=23.2

[RECON map]
TNO is 44.9 AU from the Sun and 44.1 AU from the Earth.
The TNO is moving 20.3 km/sec on the sky relative to the star, or, 2.3 arcsec/hr.
The 1-sigma error in the time of the event is 652 seconds.
The 1-sigma cross-track error in the shadow position is 3873 km.
The sky-plane scale is 31957.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.6
Diameter=291.1 km assuming a 5% albedo -- 14.4 sec chord
Diameter=118.8 km assuming a 30% albedo -- 5.9 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 04MT8, (2019/06/23 11:06UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:43.4 -29:31:07  1.2 35.13  18
38Zet Sgr      19:03:50.9 -29:51:02  2.7 21.21  57
7Sig Cap       20:20:30.9 -19:03:23  5.3  2.29  38
PPM 271194     20:30:08.2 -20:50:09  7.5  0.59  36
PPM 271145     20:27:59.7 -20:44:50  8.7  0.27  36
04MT8          20:28:09.7 -20:28:35 16.4        36
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 1.4 sigma about the mid-time.
The median site spacing is 73.8 km RECON observability=0.1 and success probability=2.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 11:04:16 -6.1 NT Up 18.9 191.1 Really Low 10:49:16 - 11:19:16 1977
Summerland 11:04:17 -6.4 NT Up 19.2 190.9 Really Low 10:49:17 - 11:19:17 1971
Penticton 11:04:17 -6.4 NT Up 19.2 191.0 Really Low 10:49:17 - 11:19:17 1966
Okanagan Falls 11:04:16 -6.5 NT Up 19.4 191.0 Really Low 10:49:16 - 11:19:16 1959
Oliver 11:04:17 -6.7 NT Up 19.6 191.0 Really Low 10:49:17 - 11:19:17 1951
Anarchist Mountain Observatory 11:04:16 -6.7 NT Up 19.7 191.2 Really Low 10:49:16 - 11:19:16 1940
Oroville 11:04:17 -6.8 NT Up 19.8 191.2 Really Low 10:49:17 - 11:19:17 1938
Tonasket 11:04:16 -7.0 NT Up 20.0 191.2 Low 10:49:16 - 11:19:16 1928
Okanogan 11:04:16 -7.3 NT Up 20.4 191.0 Low 10:49:16 - 11:19:16 1917
Brewster 11:04:17 -7.6 NT Up 20.7 190.9 Low 10:49:17 - 11:19:17 1910
Manson/Chelan 11:04:18 -7.9 NT Up 20.9 190.5 Low 10:49:18 - 11:19:18 1910
Entiat 11:04:18 -8.1 NT Up 21.2 190.5 Low 10:49:18 - 11:19:18 1902
Wenatchee 11:04:18 -8.3 NT Up 21.4 190.4 Low 10:49:18 - 11:19:18 1893
Ellensburg 11:04:20 -8.7 NT Up 21.8 190.2 Low 10:49:20 - 11:19:20 1879
Yakima 11:04:19 -9.0 NT Up 22.3 190.2 Low 10:49:19 - 11:19:19 1861
Toppenish/White Swan 11:04:19 -9.1 NT Up 22.4 190.4 Low 10:49:19 - 11:19:19 1847
Goldendale 11:04:21 -9.7 NT Up 23.0 190.0 Low 10:49:21 - 11:19:21 1832
The Dalles 11:04:22 -10.1 NT Up 23.3 189.7 Low 10:49:22 - 11:19:22 1830
Pasco 11:04:15 -8.6 NT Up 22.4 191.7 Low 10:49:15 - 11:19:15 1811
Maupin 11:04:21 -10.3 NT Up 23.7 189.8 Low 10:49:21 - 11:19:21 1808
George/Umatilla 11:04:15 -9.0 NT Up 22.8 191.5 Low 10:49:15 - 11:19:15 1800
PNWRO 11:04:14 -8.7 NT Up 22.6 191.9 Low 10:49:14 - 11:19:14 1793
Madras/Culver 11:04:22 -10.8 NT Up 24.2 189.8 Low 10:49:22 - 11:19:22 1782
Sisters 11:04:23 -11.2 NT Up 24.6 189.4 Low 10:49:23 - 11:19:23 1777
Redmond 11:04:22 -11.1 NT Up 24.6 189.8 Low 10:49:22 - 11:19:22 1766
Bend 11:04:22 -11.3 NT Up 24.8 189.7 Low 10:49:22 - 11:19:22 1759
Oregon Observatory 11:04:23 -11.5 NT Up 25.0 189.5 Low 10:49:23 - 11:19:23 1754
La Pine/Gilchrist 11:04:23 -11.7 NT Up 25.2 189.5 Low 10:49:23 - 11:19:23 1745
North Lake 11:04:21 -11.7 NT Up 25.6 190.1 Low 10:49:21 - 11:19:21 1708
Chiloquin 11:04:24 -12.7 AT Up 26.4 189.2 Low 10:49:24 - 11:19:24 1697
Klamath Falls 11:04:24 -12.9 AT Up 26.7 189.3 Low 10:49:24 - 11:19:24 1677
Paisley 11:04:19 -12.0 NT Up 26.1 190.5 Low 10:49:19 - 11:19:19 1670
Tulelake 11:04:23 -13.0 AT Up 26.9 189.7 Low 10:49:23 - 11:19:23 1655
Lakeview 11:04:19 -12.3 AT Up 26.6 190.8 Low 10:49:19 - 11:19:19 1638
Fall River/Burney 11:04:23 -13.6 AT Up 27.8 189.8 Low 10:49:23 - 11:19:23 1604
Cedarville 11:04:18 -12.7 AT Up 27.2 191.0 Low 10:49:18 - 11:19:18 1599
Susanville 11:04:21 -13.7 AT Up 28.3 190.7 Low 10:49:21 - 11:19:21 1550
Greenville 11:04:21 -14.1 AT Up 28.6 190.4 Low 10:49:21 - 11:19:21 1543
Gimple 11:04:21 -14.0 AT Up 28.6 190.5 Low 10:49:21 - 11:19:21 1540
Quincy 11:04:21 -14.2 AT Up 28.8 190.4 Low 10:49:21 - 11:19:21 1531
Portola 11:04:19 -14.1 AT Up 28.9 190.9 Low 10:49:19 - 11:19:19 1511
Reno 11:04:17 -13.9 AT Up 29.1 191.6 Low 10:49:17 - 11:19:17 1479
Carson City 11:04:17 -14.2 AT Up 29.4 191.7 Low 10:49:17 - 11:19:17 1457
Gardnerville 11:04:17 -14.3 AT Up 29.6 191.8 Low 10:49:17 - 11:19:17 1442
Yerington 11:04:15 -14.0 AT Up 29.5 192.4 Low 10:49:15 - 11:19:15 1428
Hawthorne 11:04:12 -14.1 AT Up 29.9 193.0 Low 10:49:12 - 11:19:12 1386
Lee Vining 11:04:14 -14.7 AT Up 30.5 192.5 Up 10:49:14 - 11:19:14 1366
Tonopah 11:04:07 -13.6 AT Up 30.1 194.5 Up 10:49:07 - 11:19:07 1318
Bishop 11:04:11 -14.8 AT Up 31.0 193.4 Up 10:49:11 - 11:19:11 1310
Lone Pine 11:04:10 -15.1 AT Up 31.6 193.8 Up 10:49:10 - 11:19:10 1253
CPSLO 11:04:21 -17.5 AT Up 33.4 191.2 Up 10:49:21 - 11:19:21 1246
Beatty 11:04:05 -14.2 AT Up 31.1 195.2 Up 10:49:05 - 11:19:05 1233
Indian Springs 11:04:00 -13.8 AT Up 31.2 196.3 Up 10:49:00 - 11:19:00 1181
Henderson 11:03:59 -13.8 AT Up 31.5 197.2 Up 10:48:59 - 11:18:59 1126
Wildwood 11:04:13 -17.2 AT Up 34.2 193.6 Up 10:49:13 - 11:19:13 1108
Searchlight/Boulder City 11:03:58 -14.1 AT Up 32.1 197.3 Up 10:48:58 - 11:18:58 1087
Niwot 11:03:23 -5.4 CT Up 24.9 206.1 Low 10:48:23 - 11:18:23 1076
SwRI 11:03:23 -5.5 CT Up 25.1 206.1 Low 10:48:23 - 11:18:23 1072
Laughlin/Bullhead City 11:03:56 -14.1 AT Up 32.3 197.8 Up 10:48:56 - 11:18:56 1056
Patrick 11:03:53 -13.6 AT Up 31.9 198.5 Up 10:48:53 - 11:18:53 1050
Kingman/Dolan Springs 11:03:54 -13.8 AT Up 32.1 198.3 Up 10:48:54 - 11:18:54 1042
Mohave Valley 11:03:56 -14.3 AT Up 32.5 197.8 Up 10:48:56 - 11:18:56 1038
Idyllwild 11:04:05 -16.4 AT Up 34.1 195.8 Up 10:49:05 - 11:19:05 1027
DCO 11:03:51 -13.3 AT Up 32.0 199.3 Up 10:48:51 - 11:18:51 1008
Lake Havasu City 11:03:56 -14.4 AT Up 32.8 198.2 Up 10:48:56 - 11:18:56 1004
Parker 11:03:56 -14.7 AT Up 33.2 198.3 Up 10:48:56 - 11:18:56 979
Blythe 11:03:57 -15.2 AT Up 33.7 198.1 Up 10:48:57 - 11:18:57 953
Calipatria 11:04:01 -16.1 AT Up 34.4 197.1 Up 10:49:01 - 11:19:01 949
Yuma 11:03:57 -15.8 AT Up 34.6 198.2 Up 10:48:57 - 11:18:57 891

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 04MT8, (2019/06/23 11:06UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.5 -29:37:23  1.2 35.13  18
38Zet Sgr      19:02:36.7 -29:52:49  2.7 21.21  57
7Sig Cap       20:19:23.6 -19:07:07  5.3  2.29  38
PPM 271194     20:29:00.4 -20:54:06  7.5  0.59  36
PPM 271145     20:26:51.9 -20:48:45  8.7  0.27  36
04MT8          20:27:02.0 -20:32:29 16.4        36
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:19:19 UT

Marc W. Buie, Southwest Research Institute

RECON