RECON: TNO occultation with 12BA155

Event between 12BA155 and star GA0860:03830620 with event index number of 314612

Geocentric closest approach at 2019/03/14 02:22:24 UTC

J2000 position of star is 10:07:46.9 -03:33:25
Equinox of date position of star is 10:08:44.9 -03:39:04
Stellar brightness G=13.3, use SENSEUP=32
Star is 76 degrees from the moon. Moon is 46% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 39.0 AU from the Sun and 38.1 AU from the Earth.
The TNO is moving 23.6 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 79 seconds.
The 1-sigma cross-track error in the shadow position is 1557 km.
The sky-plane scale is 27597.8 km/arcsec.

The TNO has an absolute magnitude Hv=6.1
Diameter=358.1 km assuming a 5% albedo -- 15.2 sec chord
Diameter=146.2 km assuming a 30% albedo -- 6.2 sec chord
Dynamical classification is 5:2EEE
 
 
 
 
 
 

Star training set for 12BA155, (2019/03/14 02:22UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:23.5 +11:52:22  1.3 15.52  71
Alphard        09:28:31.9 -08:44:34  2.0 11.22  69
15Alp Sex      10:08:55.2 -00:27:59  4.4  3.19  75
PPM 193118     10:09:29.7 -03:34:21  7.9  0.20  76
PPM 193112     10:09:16.1 -03:44:49 10.0  0.16  76
12BA155        10:08:45.1 -03:39:05 13.3        76
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 0.0 km RECON observability=0.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 02:26:19 -5.2 CT Up 14.0 113.2 Really Low 02:19:15 - 02:33:22 3286
Summerland 02:26:19 -4.9 CT Up 13.8 112.9 Really Low 02:19:16 - 02:33:23 3275
Penticton 02:26:19 -5.1 CT Up 14.0 113.0 Really Low 02:19:16 - 02:33:23 3248
Okanagan Falls 02:26:20 -5.1 CT Up 14.1 112.9 Really Low 02:19:16 - 02:33:23 3229
Oliver 02:26:19 -5.1 CT Up 14.1 112.9 Really Low 02:19:16 - 02:33:23 3214
Anarchist Mountain Observatory 02:26:20 -5.2 CT Up 14.3 113.0 Really Low 02:19:17 - 02:33:24 3201
Oroville 02:26:20 -5.2 CT Up 14.3 113.0 Really Low 02:19:17 - 02:33:24 3192
Tonasket 02:26:21 -5.2 CT Up 14.4 112.9 Really Low 02:19:18 - 02:33:25 3170
Okanogan 02:26:22 -5.1 CT Up 14.4 112.7 Really Low 02:19:18 - 02:33:25 3134
Brewster 02:26:21 -5.0 CT Up 14.4 112.5 Really Low 02:19:18 - 02:33:25 3104
Manson/Chelan 02:26:23 -4.7 CT Up 14.3 112.1 Really Low 02:19:19 - 02:33:26 3077
Entiat 02:26:23 -4.7 CT Up 14.3 112.0 Really Low 02:19:19 - 02:33:26 3054
Wenatchee 02:26:24 -4.6 CT Up 14.3 111.9 Really Low 02:19:20 - 02:33:27 3027
Ellensburg 02:26:24 -4.5 CT Up 14.4 111.6 Really Low 02:19:20 - 02:33:27 2982
Yakima 02:26:25 -4.5 CT Up 14.5 111.5 Really Low 02:19:21 - 02:33:28 2941
Pasco 02:26:24 -5.5 CT Up 15.5 112.6 Really Low 02:19:20 - 02:33:27 2936
Toppenish/White Swan 02:26:25 -4.6 CT Up 14.7 111.6 Really Low 02:19:21 - 02:33:28 2923
PNWRO 02:26:23 -5.7 CT Up 15.8 112.7 Really Low 02:19:19 - 02:33:26 2916
George/Umatilla 02:26:25 -5.4 CT Up 15.5 112.3 Really Low 02:19:21 - 02:33:28 2898
Goldendale 02:26:26 -4.3 CT Up 14.6 111.1 Really Low 02:19:23 - 02:33:30 2860
The Dalles 02:26:27 -4.1 CT Up 14.5 110.8 Really Low 02:19:24 - 02:33:31 2830
Maupin 02:26:28 -4.2 CT Up 14.7 110.8 Really Low 02:19:24 - 02:33:31 2791
Madras/Culver 02:26:28 -4.1 CT Up 14.9 110.6 Really Low 02:19:25 - 02:33:32 2735
Redmond 02:26:29 -4.1 CT Up 14.9 110.5 Really Low 02:19:25 - 02:33:32 2698
Sisters 02:26:28 -3.8 CT Up 14.7 110.2 Really Low 02:19:25 - 02:33:32 2692
Bend 02:26:28 -4.0 CT Up 14.9 110.3 Really Low 02:19:25 - 02:33:32 2673
Niwot 02:26:06 -16.2 AT Up 27.3 121.8 Low 02:19:03 - 02:33:10 2671
SwRI 02:26:06 -16.2 AT Up 27.3 121.7 Low 02:19:03 - 02:33:10 2658
Oregon Observatory 02:26:30 -3.9 CT Up 14.9 110.2 Really Low 02:19:26 - 02:33:33 2653
La Pine/Gilchrist 02:26:30 -3.9 CT Up 14.9 110.1 Really Low 02:19:26 - 02:33:33 2631
North Lake 02:26:30 -4.3 CT Up 15.5 110.4 Really Low 02:19:26 - 02:33:33 2599
Paisley 02:26:29 -4.6 CT Up 15.9 110.6 Really Low 02:19:25 - 02:33:32 2550
Chiloquin 02:26:32 -3.6 CT Up 15.1 109.5 Really Low 02:19:28 - 02:33:35 2511
Lakeview 02:26:30 -4.7 CT Up 16.2 110.6 Really Low 02:19:26 - 02:33:33 2502
Klamath Falls 02:26:31 -3.7 CT Up 15.2 109.5 Really Low 02:19:27 - 02:33:34 2478
Tulelake 02:26:31 -3.9 CT Up 15.5 109.7 Really Low 02:19:28 - 02:33:35 2456
Cedarville 02:26:30 -4.9 CT Up 16.6 110.5 Really Low 02:19:27 - 02:33:34 2439
Fall River/Burney 02:26:32 -3.9 CT Up 15.9 109.5 Really Low 02:19:28 - 02:33:35 2364
Susanville 02:26:31 -4.5 CT Up 16.6 109.9 Really Low 02:19:27 - 02:33:34 2314
Gimple 02:26:32 -4.4 CT Up 16.6 109.6 Really Low 02:19:28 - 02:33:35 2281
Greenville 02:26:32 -4.3 CT Up 16.5 109.6 Really Low 02:19:29 - 02:33:36 2280
Quincy 02:26:32 -4.3 CT Up 16.6 109.5 Really Low 02:19:28 - 02:33:35 2259
Portola 02:26:32 -4.7 CT Up 17.0 109.8 Really Low 02:19:28 - 02:33:35 2256
Reno 02:26:31 -5.2 CT Up 17.5 110.2 Really Low 02:19:27 - 02:33:34 2242
Carson City 02:26:31 -5.2 CT Up 17.7 110.1 Really Low 02:19:28 - 02:33:35 2206
Yerington 02:26:31 -5.7 CT Up 18.2 110.5 Really Low 02:19:27 - 02:33:34 2200
Gardnerville 02:26:31 -5.2 CT Up 17.8 110.1 Really Low 02:19:28 - 02:33:35 2182
Hawthorne 02:26:30 -6.1 NT Up 18.8 110.7 Really Low 02:19:27 - 02:33:34 2163
Tonopah 02:26:29 -7.2 NT Up 20.0 111.6 Really Low 02:19:25 - 02:33:32 2148
Lee Vining 02:26:32 -5.7 CT Up 18.6 110.2 Really Low 02:19:28 - 02:33:35 2094
Bishop 02:26:31 -6.3 NT Up 19.3 110.5 Really Low 02:19:28 - 02:33:35 2048
Beatty 02:26:29 -7.6 NT Up 20.7 111.5 Low 02:19:25 - 02:33:32 2039
Indian Springs 02:26:26 -8.5 NT Up 21.6 112.2 Low 02:19:23 - 02:33:30 2032
Henderson 02:26:26 -9.1 NT Up 22.4 112.5 Low 02:19:22 - 02:33:29 1994
Lone Pine 02:26:31 -6.6 NT Up 19.9 110.5 Really Low 02:19:28 - 02:33:35 1977
Patrick 02:26:25 -10.0 NT Up 23.4 113.0 Low 02:19:21 - 02:33:28 1958
DCO 02:26:24 -10.6 NT Up 24.1 113.4 Low 02:19:20 - 02:33:27 1945
Searchlight/Boulder City 02:26:26 -9.2 NT Up 22.6 112.3 Low 02:19:22 - 02:33:29 1936
Kingman/Dolan Springs 02:26:25 -9.9 NT Up 23.4 112.8 Low 02:19:21 - 02:33:28 1930
Laughlin/Bullhead City 02:26:25 -9.5 NT Up 23.0 112.4 Low 02:19:22 - 02:33:29 1914
Mohave Valley 02:26:25 -9.5 NT Up 23.1 112.3 Low 02:19:22 - 02:33:29 1886
Lake Havasu City 02:26:25 -9.7 NT Up 23.5 112.3 Low 02:19:22 - 02:33:29 1851
Parker 02:26:25 -9.8 NT Up 23.6 112.2 Low 02:19:22 - 02:33:29 1815
CPSLO 02:26:35 -4.5 CT Up 18.3 108.3 Really Low 02:19:31 - 02:33:38 1782
Blythe 02:26:26 -9.5 NT Up 23.6 111.8 Low 02:19:23 - 02:33:30 1753
Idyllwild 02:26:30 -7.8 NT Up 21.9 110.4 Low 02:19:27 - 02:33:34 1710
Wildwood 02:26:32 -6.2 NT Up 20.3 109.3 Low 02:19:29 - 02:33:36 1702
Calipatria 02:26:28 -8.8 NT Up 23.0 111.0 Low 02:19:25 - 02:33:32 1677
Yuma 02:26:27 -9.6 NT Up 23.9 111.4 Low 02:19:23 - 02:33:30 1655

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 12BA155, (2019/03/14 02:22UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:22.0 +11:58:02  1.3 15.52  71
Alphard        09:27:35.2 -08:39:31  2.0 11.22  69
15Alp Sex      10:07:56.2 -00:22:19  4.4  3.19  75
PPM 193118     10:08:31.4 -03:28:41  7.9  0.20  76
PPM 193112     10:08:17.8 -03:39:09 10.0  0.16  76
12BA155        10:07:46.9 -03:33:25 13.3        76
Positions are for J2000

Event circumstances last updated at 2019/02/12 06:44:28 UT

Marc W. Buie, Southwest Research Institute

RECON