RECON: TNO occultation with 136472

Event between (136472) Makemake and star GA1140:03427726 with event index number of 183955

Geocentric closest approach at 2019/03/09 09:24:03 UTC

J2000 position of star is 13:06:10.9 +24:12:23
Equinox of date position of star is 13:07:04.4 +24:06:29
Stellar brightness G=14.7, use SENSEUP=128
Star is 153 degrees from the moon. Moon is 7% illuminated.
TNO apparent brightness V=17.0

[RECON map]
TNO is 52.5 AU from the Sun and 51.7 AU from the Earth.
The TNO is moving 25.2 km/sec on the sky relative to the star, or, 2.4 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 1953 km.
The sky-plane scale is 37502.8 km/arcsec.

The TNO has an absolute magnitude Hv=-0.2
Diameter=6607.2 km assuming a 5% albedo -- 262.5 sec chord
Diameter=2697.4 km assuming a 30% albedo -- 107.2 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 136472, (2019/03/09 09:24UT)
Object            RA         Dec     mag  sep  mel
Arcturus       14:16:32.3 +19:05:01  0.0 16.89 154
Vindemiatrix   13:03:07.9 +10:51:23  2.8 13.28 166
39 Com         13:07:17.3 +21:03:03  6.0  3.05 156
PPM 102400     13:08:57.8 +24:43:45  7.9  0.75 152
PPM 102388     13:07:47.6 +24:39:58 10.0  0.58 152
PPM 102362     13:06:05.5 +24:06:07 11.4  0.23 153
136472         13:07:06.6 +24:06:14 14.7       153
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 19.3 km RECON observability=1.0 and success probability=1.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 09:22:53 -42.4 Dark Down 63.8 162.0 Up 09:15:48 - 09:29:59 7161
Oroville 09:22:53 -42.9 Dark Down 64.4 161.9 Up 09:15:47 - 09:29:58 7111
Tonasket 09:22:52 -43.1 Dark Down 64.6 161.7 Up 09:15:46 - 09:29:57 7090
Okanogan 09:22:50 -43.4 Dark Down 64.9 161.2 Up 09:15:44 - 09:29:55 7054
Brewster 09:22:50 -43.7 Dark Down 65.1 160.5 Up 09:15:44 - 09:29:55 7022
Manson/Chelan 09:22:52 -44.0 Dark Down 65.2 159.6 Up 09:15:47 - 09:29:58 6989
Entiat 09:22:51 -44.2 Dark Down 65.4 159.3 Up 09:15:46 - 09:29:57 6966
Niwot 09:21:55 -43.9 Dark Down 73.4 198.0 Up 09:14:49 - 09:29:00 6962
Wenatchee 09:22:52 -44.5 Dark Down 65.6 158.9 Up 09:15:47 - 09:29:58 6939
Ellensburg 09:22:51 -44.9 Dark Down 66.0 158.1 Up 09:15:45 - 09:29:56 6893
Pasco 09:22:46 -45.2 Dark Down 67.0 160.6 Up 09:15:40 - 09:29:51 6879
PNWRO 09:22:46 -45.3 Dark Down 67.3 160.9 Up 09:15:40 - 09:29:51 6865
Yakima 09:22:50 -45.3 Dark Down 66.3 157.7 Up 09:15:44 - 09:29:55 6855
Toppenish/White Swan 09:22:49 -45.5 Dark Down 66.6 157.9 Up 09:15:44 - 09:29:55 6841
George/Umatilla 09:22:44 -45.5 Dark Down 67.3 159.8 Up 09:15:39 - 09:29:50 6840
Goldendale 09:22:49 -46.1 Dark Down 67.0 156.4 Up 09:15:44 - 09:29:55 6773
The Dalles 09:22:51 -46.4 Dark Down 67.1 155.4 Up 09:15:45 - 09:29:56 6739
Maupin 09:22:49 -46.7 Dark Down 67.5 155.2 Up 09:15:44 - 09:29:55 6703
Madras/Culver 09:22:49 -47.3 Dark Down 68.0 154.6 Up 09:15:44 - 09:29:55 6651
Redmond 09:22:48 -47.6 Dark Down 68.3 154.0 Up 09:15:43 - 09:29:54 6615
Sisters 09:22:49 -47.7 Dark Down 68.1 153.2 Up 09:15:44 - 09:29:55 6602
Bend 09:22:48 -47.8 Dark Down 68.4 153.5 Up 09:15:43 - 09:29:54 6590
Oregon Observatory 09:22:49 -48.0 Dark Down 68.5 153.0 Up 09:15:44 - 09:29:55 6568
La Pine/Gilchrist 09:22:46 -48.2 Dark Down 68.7 152.6 Up 09:15:40 - 09:29:51 6546
North Lake 09:22:46 -48.4 Dark Down 69.3 153.5 Up 09:15:40 - 09:29:51 6529
Paisley 09:22:44 -48.8 Dark Down 69.9 153.7 Up 09:15:38 - 09:29:49 6492
Lakeview 09:22:41 -49.2 Dark Down 70.4 153.5 Up 09:15:36 - 09:29:47 6452
Chiloquin 09:22:46 -49.3 Dark Down 69.5 150.3 Up 09:15:41 - 09:29:52 6427
Klamath Falls 09:22:45 -49.6 Dark Down 69.9 150.1 Up 09:15:39 - 09:29:50 6398
Cedarville 09:22:40 -49.7 Dark Down 71.0 153.1 Up 09:15:35 - 09:29:46 6398
Tulelake 09:22:44 -49.8 Dark Down 70.2 150.4 Up 09:15:39 - 09:29:50 6384
Fall River/Burney 09:22:42 -50.6 Dark Down 71.0 149.3 Up 09:15:37 - 09:29:48 6301
Susanville 09:22:39 -50.9 Dark Down 71.8 150.3 Up 09:15:33 - 09:29:44 6272
Gimple 09:22:39 -51.2 Dark Down 72.0 149.3 Up 09:15:33 - 09:29:44 6237
Greenville 09:22:39 -51.2 Dark Down 72.0 149.1 Up 09:15:33 - 09:29:44 6234
Reno 09:22:35 -51.3 Dark Down 72.9 151.2 Up 09:15:29 - 09:29:40 6225
Portola 09:22:37 -51.3 Dark Down 72.4 149.8 Up 09:15:32 - 09:29:43 6223
Quincy 09:22:39 -51.4 Dark Down 72.1 148.7 Up 09:15:34 - 09:29:45 6215
Yerington 09:22:31 -51.6 Dark Down 73.6 152.2 Up 09:15:26 - 09:29:37 6202
Tonopah 09:22:24 -51.5 Dark Down 75.1 156.8 Up 09:15:18 - 09:29:29 6201
Carson City 09:22:35 -51.6 Dark Down 73.2 150.7 Up 09:15:29 - 09:29:40 6192
Hawthorne 09:22:28 -51.7 Dark Down 74.2 153.0 Up 09:15:23 - 09:29:34 6181
Gardnerville 09:22:32 -51.8 Dark Down 73.5 150.4 Up 09:15:27 - 09:29:38 6171
Indian Springs 09:22:16 -52.0 Dark Down 76.9 160.0 Up 09:15:11 - 09:29:22 6133
DCO 09:22:07 -51.8 Dark Down 78.9 168.6 Up 09:15:01 - 09:29:12 6120
Henderson 09:22:12 -52.1 Dark Down 77.6 161.9 Up 09:15:07 - 09:29:18 6117
Beatty 09:22:20 -52.3 Dark Down 76.3 156.5 Up 09:15:14 - 09:29:25 6113
Patrick 09:22:07 -52.0 Dark Down 78.5 165.7 Up 09:15:02 - 09:29:13 6113
Lee Vining 09:22:29 -52.4 Dark Down 74.5 150.5 Up 09:15:23 - 09:29:34 6106
Kingman/Dolan Springs 09:22:09 -52.3 Dark Down 78.7 164.6 Up 09:15:03 - 09:29:14 6083
Bishop 09:22:26 -52.6 Dark Down 75.3 151.7 Up 09:15:21 - 09:29:32 6082
Searchlight/Boulder City 09:22:11 -52.5 Dark Down 78.2 161.3 Up 09:15:05 - 09:29:16 6067
Laughlin/Bullhead City 09:22:09 -52.6 Dark Down 78.6 162.3 Up 09:15:04 - 09:29:15 6056
Mohave Valley 09:22:09 -52.8 Dark Down 78.8 161.9 Up 09:15:04 - 09:29:15 6031
Lone Pine 09:22:23 -53.1 Dark Down 76.1 151.4 Up 09:15:18 - 09:29:29 6025
Lake Havasu City 09:22:07 -52.9 Dark Down 79.3 162.4 Up 09:15:02 - 09:29:13 6006
Parker 09:22:07 -53.2 Dark Down 79.6 161.9 Up 09:15:01 - 09:29:12 5975
Blythe 09:22:06 -53.7 Dark Down 80.0 159.5 Up 09:15:00 - 09:29:11 5911
Yuma 09:22:05 -54.5 Dark Down 80.9 157.2 Up 09:15:00 - 09:29:11 5823
Calipatria 09:22:07 -54.6 Dark Down 80.2 153.7 Up 09:15:02 - 09:29:13 5819
Idyllwild 09:22:14 -54.8 Dark Down 79.2 150.0 Up 09:15:08 - 09:29:19 5818
CPSLO 09:22:29 -55.3 Dark Down 76.0 140.0 Up 09:15:23 - 09:29:34 5784
Wildwood 09:22:20 -55.4 Dark Down 78.0 143.5 Up 09:15:15 - 09:29:26 5762

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 136472, (2019/03/09 09:24UT)
Object            RA         Dec     mag  sep  mel
Arcturus       14:15:38.3 +19:10:20  0.0 16.89 154
Vindemiatrix   13:02:10.3 +10:57:33  2.8 13.28 166
39 Com         13:06:21.1 +21:09:11  6.0  3.05 156
PPM 102400     13:08:02.3 +24:49:52  7.9  0.75 152
PPM 102388     13:06:52.1 +24:46:06 10.0  0.58 152
PPM 102362     13:05:09.7 +24:12:16 11.4  0.23 153
136472         13:06:10.9 +24:12:23 14.7       153
Positions are for J2000

Event circumstances last updated at 2018/06/11 22:46:00 UT

Marc W. Buie, Southwest Research Institute

RECON