RECON: TNO occultation with 10XE91

Event between 10XE91 and star GA0960:01019702 with event index number of 235109

Geocentric closest approach at 2018/11/14 07:47:49 UTC

J2000 position of star is 05:53:17.6 +07:35:42
Equinox of date position of star is 05:54:17.5 +07:35:52
Stellar brightness G=16.2, use SENSEUP=128
Star is 138 degrees from the moon. Moon is 38% illuminated.
TNO apparent brightness V=22.6

[RECON map]
TNO is 39.2 AU from the Sun and 38.4 AU from the Earth.
The TNO is moving 19.5 km/sec on the sky relative to the star, or, 2.5 arcsec/hr.
The 1-sigma error in the time of the event is 623 seconds.
The 1-sigma cross-track error in the shadow position is 1594 km.
The sky-plane scale is 27851.2 km/arcsec.

The TNO has an absolute magnitude Hv=6.6
Diameter=291.1 km assuming a 5% albedo -- 14.9 sec chord
Diameter=118.8 km assuming a 30% albedo -- 6.1 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 10XE91, (2018/11/14 07:48UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:11.6 +07:24:33  0.4  0.50 138
Bellatrix      05:26:08.6 +06:21:55  1.6  7.10 131
52 Ori         05:49:01.0 +06:27:34  5.5  1.74 136
PPM 149627     05:55:30.3 +08:03:24  7.2  0.55 138
PPM 149580     05:53:36.7 +07:33:04  9.6  0.18 137
PPM 149610     05:54:40.9 +07:34:46 10.7  0.09 138
10XE91         05:54:19.0 +07:35:53 16.2       138
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 18.7 km RECON observability=1.0 and success probability=20.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 07:49:07 -58.7 Dark Down 37.8 130.6 Up 07:34:07 - 08:04:07 -704
Oroville 07:49:08 -59.3 Dark Down 38.2 130.4 Up 07:34:08 - 08:04:08 -747
Tonasket 07:49:09 -59.5 Dark Down 38.4 130.3 Up 07:34:09 - 08:04:09 -763
Okanogan 07:49:11 -59.8 Dark Down 38.5 129.9 Up 07:34:11 - 08:04:11 -784
Brewster 07:49:12 -60.1 Dark Down 38.6 129.5 Up 07:34:12 - 08:04:12 -799
Manson/Chelan 07:49:14 -60.3 Dark Down 38.6 129.0 Up 07:34:14 - 08:04:14 -807
Entiat 07:49:15 -60.6 Dark Down 38.7 128.8 Up 07:34:15 - 08:04:15 -821
Wenatchee 07:49:16 -60.8 Dark Down 38.8 128.6 Up 07:34:16 - 08:04:16 -837
Ellensburg 07:49:18 -61.2 Dark Down 38.9 128.1 Up 07:34:18 - 08:04:18 -862
Yakima 07:49:19 -61.6 Dark Down 39.2 127.8 Up 07:34:19 - 08:04:19 -891
Toppenish/White Swan 07:49:19 -61.9 Dark Down 39.4 127.8 Up 07:34:19 - 08:04:19 -910
Goldendale 07:49:23 -62.4 Dark Down 39.5 127.0 Up 07:34:23 - 08:04:23 -942
Pasco 07:49:16 -61.9 Dark Down 40.1 129.1 Up 07:34:16 - 08:04:16 -943
The Dalles 07:49:25 -62.6 Dark Down 39.4 126.5 Up 07:34:25 - 08:04:25 -951
George/Umatilla 07:49:18 -62.3 Dark Down 40.2 128.7 Up 07:34:18 - 08:04:18 -963
PNWRO 07:49:16 -62.2 Dark Down 40.4 129.2 Up 07:34:16 - 08:04:16 -965
Maupin 07:49:26 -63.1 Dark Down 39.7 126.3 Up 07:34:26 - 08:04:26 -984
Madras/Culver 07:49:27 -63.6 Dark Down 40.0 125.9 Up 07:34:27 - 08:04:27 -1023
Sisters 07:49:30 -63.9 Dark Down 40.0 125.2 Up 07:34:30 - 08:04:30 -1039
Redmond 07:49:29 -64.0 Dark Down 40.2 125.6 Up 07:34:29 - 08:04:29 -1049
Bend 07:49:30 -64.2 Dark Down 40.3 125.4 Up 07:34:30 - 08:04:30 -1062
Oregon Observatory 07:49:31 -64.3 Dark Down 40.3 125.1 Up 07:34:31 - 08:04:31 -1073
La Pine/Gilchrist 07:49:32 -64.6 Dark Down 40.4 124.9 Up 07:34:32 - 08:04:32 -1087
North Lake 07:49:32 -65.0 Dark Down 41.0 125.2 Up 07:34:32 - 08:04:32 -1132
Chiloquin 07:49:37 -65.7 Dark Down 40.8 123.8 Up 07:34:37 - 08:04:37 -1165
Paisley 07:49:32 -65.5 Dark Down 41.5 125.2 Up 07:34:32 - 08:04:32 -1181
Klamath Falls 07:49:38 -66.0 Dark Down 41.0 123.6 Up 07:34:38 - 08:04:38 -1193
Tulelake 07:49:37 -66.3 Dark Down 41.4 123.7 Up 07:34:37 - 08:04:37 -1220
Lakeview 07:49:33 -66.0 Dark Down 41.9 125.0 Up 07:34:33 - 08:04:33 -1224
Cedarville 07:49:35 -66.7 Dark Down 42.4 124.8 Up 07:34:35 - 08:04:35 -1279
Fall River/Burney 07:49:40 -67.2 Dark Down 41.9 123.1 Up 07:34:40 - 08:04:40 -1292
Susanville 07:49:40 -67.8 Dark Down 42.8 123.4 Up 07:34:40 - 08:04:40 -1358
Greenville 07:49:42 -68.1 Dark Down 42.7 122.9 Up 07:34:42 - 08:04:42 -1374
Gimple 07:49:41 -68.1 Dark Down 42.8 123.0 Up 07:34:41 - 08:04:41 -1376
Quincy 07:49:42 -68.3 Dark Down 42.8 122.8 Up 07:34:42 - 08:04:42 -1390
Portola 07:49:41 -68.4 Dark Down 43.2 123.1 Up 07:34:41 - 08:04:41 -1410
Reno 07:49:40 -68.6 Dark Down 43.8 123.6 Up 07:34:40 - 08:04:40 -1445
Carson City 07:49:40 -69.0 Dark Down 44.0 123.3 Up 07:34:40 - 08:04:40 -1475
Gardnerville 07:49:41 -69.2 Dark Down 44.1 123.2 Up 07:34:41 - 08:04:41 -1496
Yerington 07:49:39 -69.2 Dark Down 44.5 123.9 Up 07:34:39 - 08:04:39 -1504
Hawthorne 07:49:39 -69.6 Dark Down 45.1 124.0 Up 07:34:39 - 08:04:39 -1554
Lee Vining 07:49:43 -70.2 Dark Down 45.1 123.1 Up 07:34:43 - 08:04:43 -1590
Tonopah 07:49:35 -69.9 Dark Down 46.3 125.1 Up 07:34:35 - 08:04:35 -1623
Bishop 07:49:41 -70.7 Dark Down 45.9 123.3 Up 07:34:41 - 08:04:41 -1656
Niwot 07:48:46 -64.2 Dark Down 51.6 141.6 Up 07:33:46 - 08:03:46 -1706
Lone Pine 07:49:43 -71.4 Dark Down 46.5 123.0 Up 07:34:43 - 08:04:43 -1728
Beatty 07:49:37 -70.9 Dark Down 47.2 124.6 Up 07:34:37 - 08:04:37 -1731
CPSLO 07:49:55 -72.9 Dark Down 45.5 119.2 Up 07:34:55 - 08:04:55 -1782
Indian Springs 07:49:34 -71.0 Dark Down 48.1 125.5 Up 07:34:34 - 08:04:34 -1783
Henderson 07:49:33 -71.3 Dark Down 48.9 125.8 Up 07:34:33 - 08:04:33 -1844
Searchlight/Boulder City 07:49:34 -71.9 Dark Down 49.3 125.3 Up 07:34:34 - 08:04:34 -1896
Patrick 07:49:31 -71.6 Dark Down 50.0 126.5 Up 07:34:31 - 08:04:31 -1924
Laughlin/Bullhead City 07:49:34 -72.0 Dark Down 49.7 125.5 Up 07:34:34 - 08:04:34 -1929
Wildwood 07:49:52 -73.9 Dark Down 47.5 120.2 Up 07:34:52 - 08:04:52 -1933
Kingman/Dolan Springs 07:49:32 -71.9 Dark Down 50.0 126.1 Up 07:34:32 - 08:04:32 -1939
Mohave Valley 07:49:35 -72.3 Dark Down 49.8 125.2 Up 07:34:35 - 08:04:35 -1953
DCO 07:49:29 -71.7 Dark Down 50.6 127.0 Up 07:34:29 - 08:04:29 -1967
Lake Havasu City 07:49:35 -72.6 Dark Down 50.2 125.1 Up 07:34:35 - 08:04:35 -1994
Idyllwild 07:49:47 -74.0 Dark Down 49.0 121.8 Up 07:34:47 - 08:04:47 -2008
Parker 07:49:36 -72.9 Dark Down 50.5 124.8 Up 07:34:36 - 08:04:36 -2026
Blythe 07:49:38 -73.5 Dark Down 50.6 123.9 Up 07:34:38 - 08:04:38 -2066
Calipatria 07:49:43 -74.2 Dark Down 50.2 122.4 Up 07:34:43 - 08:04:43 -2089
Yuma 07:49:41 -74.3 Dark Down 51.0 123.0 Up 07:34:41 - 08:04:41 -2148

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 10XE91, (2018/11/14 07:48UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  0.50 138
Bellatrix      05:25:07.8 +06:20:58  1.6  7.10 131
52 Ori         05:48:00.2 +06:27:15  5.5  1.74 136
PPM 149627     05:54:28.7 +08:03:15  7.2  0.55 138
PPM 149580     05:52:35.4 +07:32:52  9.6  0.18 137
PPM 149610     05:53:39.5 +07:34:36 10.7  0.09 138
10XE91         05:53:17.6 +07:35:42 16.2       138
Positions are for J2000

Event circumstances last updated at 2018/06/05 16:33:47 UT

Marc W. Buie, Southwest Research Institute

RECON