RECON: TNO occultation with 13PS76

Event between 13PS76 and star GA1040:00178827 with event index number of 231458

Geocentric closest approach at 2018/12/07 04:55:39 UTC

J2000 position of star is 01:51:51.7 +14:16:21
Equinox of date position of star is 01:52:51.3 +14:21:47
Stellar brightness G=15.0, use SENSEUP=128
Star is 137 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=24.3

[RECON map]
TNO is 46.1 AU from the Sun and 45.4 AU from the Earth.
The TNO is moving 17.5 km/sec on the sky relative to the star, or, 1.9 arcsec/hr.
The 1-sigma error in the time of the event is 325 seconds.
The 1-sigma cross-track error in the shadow position is 5247 km.
The sky-plane scale is 32937.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.6
Diameter=181.1 km assuming a 5% albedo -- 10.3 sec chord
Diameter=74.0 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is ERR2LARGE
 
 
 
 
 
 

Star training set for 13PS76, (2018/12/07 04:56UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:00.6 +16:32:45  0.8 39.54 176
6Bet Ari       01:55:41.4 +20:53:59  2.6  6.57 138
PPM 117850     02:00:26.9 +12:23:09  6.1  2.70 138
PPM 117752     01:54:05.6 +14:58:25  8.5  0.67 137
PPM 117748     01:53:52.4 +14:16:13  9.5  0.26 137
13PS76         01:52:52.9 +14:21:56 15.0       137
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 2.8 sigma about the mid-time.
The median site spacing is 22.9 km RECON observability=1.0 and success probability=3.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 04:54:13 -46.4 Dark Down 54.7 183.3 Up 04:39:13 - 05:09:13 11345
Oroville 04:54:14 -46.7 Dark Down 55.3 183.5 Up 04:39:14 - 05:09:14 11291
Tonasket 04:54:15 -46.8 Dark Down 55.5 183.6 Up 04:39:15 - 05:09:15 11271
Okanogan 04:54:17 -46.9 Dark Down 55.9 183.4 Up 04:39:17 - 05:09:17 11246
Brewster 04:54:17 -46.8 Dark Down 56.1 183.0 Up 04:39:17 - 05:09:17 11229
Manson/Chelan 04:54:19 -46.7 Dark Down 56.4 182.4 Up 04:39:19 - 05:09:19 11221
Entiat 04:54:20 -46.7 Dark Down 56.6 182.3 Up 04:39:20 - 05:09:20 11205
Wenatchee 04:54:22 -46.7 Dark Down 56.8 182.2 Up 04:39:22 - 05:09:22 11186
Ellensburg 04:54:22 -46.7 Dark Down 57.3 181.8 Up 04:39:22 - 05:09:22 11156
Yakima 04:54:23 -46.8 Dark Down 57.7 181.8 Up 04:39:23 - 05:09:23 11122
Toppenish/White Swan 04:54:23 -47.0 Dark Down 57.9 182.1 Up 04:39:23 - 05:09:23 11098
Goldendale 04:54:26 -46.9 Dark Down 58.4 181.4 Up 04:39:26 - 05:09:26 11062
The Dalles 04:54:28 -46.7 Dark Down 58.7 180.7 Up 04:39:28 - 05:09:28 11054
Pasco 04:54:18 -47.9 Dark Down 58.0 184.4 Up 04:39:18 - 05:09:18 11049
George/Umatilla 04:54:19 -47.8 Dark Down 58.3 184.0 Up 04:39:19 - 05:09:19 11026
PNWRO 04:54:18 -48.1 Dark Down 58.2 184.9 Up 04:39:18 - 05:09:18 11020
Maupin 04:54:28 -46.9 Dark Down 59.1 180.9 Up 04:39:28 - 05:09:28 11014
Madras/Culver 04:54:31 -47.0 Dark Down 59.6 180.9 Up 04:39:31 - 05:09:31 10967
Sisters 04:54:32 -46.8 Dark Down 60.0 180.0 Up 04:39:32 - 05:09:32 10952
Redmond 04:54:31 -47.1 Dark Down 60.0 180.8 Up 04:39:31 - 05:09:31 10937
Bend 04:54:32 -47.1 Dark Down 60.2 180.5 Up 04:39:32 - 05:09:32 10922
Oregon Observatory 04:54:32 -47.0 Dark Down 60.4 180.3 Up 04:39:32 - 05:09:32 10911
La Pine/Gilchrist 04:54:34 -47.0 Dark Down 60.6 180.2 Up 04:39:34 - 05:09:34 10895
North Lake 04:54:32 -47.6 Dark Down 61.0 181.4 Up 04:39:32 - 05:09:32 10837
Chiloquin 04:54:38 -47.1 Dark Down 61.7 179.5 Up 04:39:38 - 05:09:38 10807
Paisley 04:54:31 -48.0 Dark Down 61.6 182.1 Up 04:39:31 - 05:09:31 10776
Klamath Falls 04:54:39 -47.2 Dark Down 62.0 179.7 Up 04:39:39 - 05:09:39 10773
Tulelake 04:54:37 -47.5 Dark Down 62.3 180.3 Up 04:39:37 - 05:09:37 10739
Lakeview 04:54:32 -48.2 Dark Down 62.1 182.6 Up 04:39:32 - 05:09:32 10723
Cedarville 04:54:33 -48.5 Dark Down 62.7 183.0 Up 04:39:33 - 05:09:33 10658
Fall River/Burney 04:54:39 -47.7 Dark Down 63.2 180.5 Up 04:39:39 - 05:09:39 10654
Susanville 04:54:37 -48.4 Dark Down 63.8 182.1 Up 04:39:37 - 05:09:37 10571
Greenville 04:54:39 -48.2 Dark Down 64.1 181.5 Up 04:39:39 - 05:09:39 10556
Gimple 04:54:38 -48.3 Dark Down 64.1 181.7 Up 04:39:38 - 05:09:38 10553
Quincy 04:54:39 -48.3 Dark Down 64.3 181.5 Up 04:39:39 - 05:09:39 10537
Portola 04:54:38 -48.6 Dark Down 64.4 182.6 Up 04:39:38 - 05:09:38 10509
Reno 04:54:35 -49.2 Dark Down 64.7 184.0 Up 04:39:35 - 05:09:35 10463
Carson City 04:54:36 -49.3 Dark Down 65.0 184.2 Up 04:39:36 - 05:09:36 10429
Gardnerville 04:54:36 -49.4 Dark Down 65.3 184.3 Up 04:39:36 - 05:09:36 10404
Yerington 04:54:33 -49.8 Dark Down 65.2 185.6 Up 04:39:33 - 05:09:33 10389
Hawthorne 04:54:32 -50.3 Dark Down 65.6 187.0 Up 04:39:32 - 05:09:32 10328
Lee Vining 04:54:36 -50.0 Dark Down 66.2 186.0 Up 04:39:36 - 05:09:36 10291
Tonopah 04:54:26 -51.4 Dark Down 65.9 190.4 Up 04:39:26 - 05:09:26 10237
Bishop 04:54:33 -50.7 Dark Down 66.7 187.9 Up 04:39:33 - 05:09:33 10210
Lone Pine 04:54:33 -51.1 Dark Down 67.4 189.0 Up 04:39:33 - 05:09:33 10126
Beatty 04:54:27 -52.0 Dark Down 67.0 192.0 Up 04:39:27 - 05:09:27 10111
CPSLO 04:54:48 -49.2 Dark Down 68.9 182.7 Up 04:39:48 - 05:09:48 10092
Niwot 04:53:29 -59.5 Dark Down 60.5 213.3 Up 04:38:29 - 05:08:29 10074
Indian Springs 04:54:22 -52.9 Dark Down 67.1 194.8 Up 04:39:22 - 05:09:22 10043
Henderson 04:54:20 -53.6 Dark Down 67.5 196.8 Up 04:39:20 - 05:09:20 9968
Searchlight/Boulder City 04:54:21 -53.7 Dark Down 68.0 197.3 Up 04:39:21 - 05:09:21 9910
Wildwood 04:54:42 -51.0 Dark Down 70.0 188.6 Up 04:39:42 - 05:09:42 9902
Patrick 04:54:17 -54.6 Dark Down 67.8 200.0 Up 04:39:17 - 05:09:17 9870
Laughlin/Bullhead City 04:54:20 -54.0 Dark Down 68.2 198.4 Up 04:39:20 - 05:09:20 9870
Kingman/Dolan Springs 04:54:17 -54.4 Dark Down 68.0 199.7 Up 04:39:17 - 05:09:17 9855
Mohave Valley 04:54:22 -54.1 Dark Down 68.4 198.7 Up 04:39:22 - 05:09:22 9843
DCO 04:54:14 -55.2 Dark Down 67.8 201.9 Up 04:39:14 - 05:09:14 9817
Idyllwild 04:54:33 -52.5 Dark Down 70.0 194.0 Up 04:39:33 - 05:09:33 9801
Lake Havasu City 04:54:20 -54.4 Dark Down 68.8 199.6 Up 04:39:20 - 05:09:20 9795
Parker 04:54:21 -54.4 Dark Down 69.1 200.0 Up 04:39:21 - 05:09:21 9759
Blythe 04:54:23 -54.3 Dark Down 69.7 199.7 Up 04:39:23 - 05:09:23 9717
Calipatria 04:54:28 -53.6 Dark Down 70.4 197.7 Up 04:39:28 - 05:09:28 9700
Yuma 04:54:25 -54.4 Dark Down 70.5 200.5 Up 04:39:25 - 05:09:25 9627

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 13PS76, (2018/12/07 04:56UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 39.54 176
6Bet Ari       01:54:38.5 +20:48:27  2.6  6.57 138
PPM 117850     01:59:25.9 +12:17:41  6.1  2.70 138
PPM 117752     01:53:04.1 +14:52:52  8.5  0.67 137
PPM 117748     01:52:51.1 +14:10:39  9.5  0.26 137
13PS76         01:51:51.7 +14:16:21 15.0       137
Positions are for J2000

Event circumstances last updated at 2018/06/05 16:37:56 UT

Marc W. Buie, Southwest Research Institute

RECON