RECON: TNO occultation with 95WY2

Event between 95WY2 and star UC4-567-035083 with event index number of 92172

Geocentric closest approach at 2017/12/01 06:32:34 UTC

J2000 position of star is 07:01:34.5 +23:23:17
Equinox of date position of star is 07:02:37.7 +23:21:44
Stellar brightness R=15.3, use SENSEUP=128
Star is 68 degrees from the moon. Moon is 92% illuminated.
TNO apparent brightness V=23.8

[RECON map]
TNO is 45.2 AU from the Sun and 44.4 AU from the Earth.
The TNO is moving 20.4 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 496 seconds.
The 1-sigma cross-track error in the shadow position is 4035 km.
The sky-plane scale is 32189.0 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=219.8 km assuming a 5% albedo -- 10.8 sec chord
Diameter=89.7 km assuming a 30% albedo -- 4.4 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 95WY2, (2017/12/01 06:33UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:24.6 +27:58:53  1.1 10.88  78
Alhena         06:38:44.8 +16:22:57  1.9  8.96  63
42Ome Gem      07:03:30.2 +24:11:18  5.2  0.85  68
PPM 096879     07:01:45.5 +23:24:49  7.2  0.21  68
PPM 096905     07:02:31.0 +23:25:11 10.9  0.07  68
95WY2          07:02:39.6 +23:21:41 15.3        69
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 1.8 sigma about the mid-time.
The median site spacing is 22.8 km RECON observability=1.0 and success probability=6.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 06:35:41 -59.4 Dark Up 39.8 99.8 Up 06:20:41 - 06:50:41 -5227
Tonasket 06:35:42 -59.6 Dark Up 39.8 99.6 Up 06:20:42 - 06:50:42 -5249
Okanogan 06:35:43 -59.9 Dark Up 39.8 99.2 Up 06:20:43 - 06:50:43 -5278
Brewster 06:35:43 -60.0 Dark Up 39.7 98.8 Up 06:20:43 - 06:50:43 -5300
Manson/Chelan 06:35:45 -60.0 Dark Up 39.5 98.3 Up 06:20:45 - 06:50:45 -5312
Entiat 06:35:46 -60.2 Dark Up 39.5 98.1 Up 06:20:46 - 06:50:46 -5332
Wenatchee 06:35:46 -60.4 Dark Up 39.5 97.8 Up 06:20:46 - 06:50:46 -5354
Ellensburg 06:35:48 -60.6 Dark Up 39.4 97.3 Up 06:20:48 - 06:50:48 -5389
Yakima 06:35:50 -60.9 Dark Up 39.4 96.9 Up 06:20:50 - 06:50:50 -5428
Toppenish/White Swan 06:35:50 -61.2 Dark Up 39.5 96.9 Up 06:20:50 - 06:50:50 -5452
Pasco 06:35:46 -61.8 Dark Up 40.4 97.8 Up 06:20:46 - 06:50:46 -5488
Goldendale 06:35:52 -61.4 Dark Up 39.3 96.1 Up 06:20:52 - 06:50:52 -5496
The Dalles 06:35:53 -61.4 Dark Up 39.1 95.7 Up 06:20:53 - 06:50:53 -5510
George/Umatilla 06:35:49 -62.0 Dark Up 40.3 97.4 Up 06:20:49 - 06:50:49 -5516
PNWRO 06:35:47 -62.1 Dark Up 40.6 97.8 Up 06:20:47 - 06:50:47 -5516
Maupin 06:35:54 -61.8 Dark Up 39.2 95.4 Up 06:20:54 - 06:50:54 -5553
Madras/Culver 06:35:56 -62.2 Dark Up 39.2 94.9 Up 06:20:56 - 06:50:56 -5605
Sisters 06:35:58 -62.2 Dark Up 38.9 94.3 Up 06:20:58 - 06:50:58 -5628
Redmond 06:35:57 -62.4 Dark Up 39.2 94.6 Up 06:20:57 - 06:50:57 -5638
Bend 06:35:57 -62.5 Dark Up 39.2 94.3 Up 06:20:57 - 06:50:57 -5656
Oregon Observatory 06:35:58 -62.6 Dark Up 39.1 94.1 Up 06:20:58 - 06:50:58 -5670
La Pine/Gilchrist 06:36:00 -62.7 Dark Up 39.0 93.9 Up 06:21:00 - 06:51:00 -5689
North Lake 06:35:59 -63.3 Dark Up 39.5 94.0 Up 06:20:59 - 06:50:59 -5744
Chiloquin 06:36:03 -63.3 Dark Up 38.9 92.7 Up 06:21:03 - 06:51:03 -5790
Paisley 06:35:59 -63.9 Dark Up 39.8 93.8 Up 06:20:59 - 06:50:59 -5806
Klamath Falls 06:36:04 -63.6 Dark Up 38.9 92.5 Up 06:21:04 - 06:51:04 -5826
Tulelake 06:36:04 -64.0 Dark Up 39.2 92.5 Up 06:21:04 - 06:51:04 -5859
Lakeview 06:36:00 -64.4 Dark Up 40.0 93.5 Up 06:21:00 - 06:51:00 -5860
Cedarville 06:36:01 -64.9 Dark Up 40.2 93.1 Up 06:21:01 - 06:51:01 -5930
Fall River/Burney 06:36:06 -64.6 Dark Up 39.3 91.8 Up 06:21:06 - 06:51:06 -5951
Susanville 06:36:05 -65.5 Dark Up 39.9 91.8 Up 06:21:05 - 06:51:05 -6030
Greenville 06:36:06 -65.5 Dark Up 39.6 91.4 Up 06:21:06 - 06:51:06 -6052
Gimple 06:36:06 -65.6 Dark Up 39.7 91.5 Up 06:21:06 - 06:51:06 -6054
Quincy 06:36:07 -65.6 Dark Up 39.7 91.2 Up 06:21:07 - 06:51:07 -6072
Portola 06:36:07 -66.0 Dark Up 40.0 91.4 Up 06:21:07 - 06:51:07 -6095
Reno 06:36:05 -66.5 Dark Up 40.5 91.6 Up 06:21:05 - 06:51:05 -6136
Carson City 06:36:07 -66.8 Dark Up 40.6 91.3 Up 06:21:07 - 06:51:07 -6173
Gardnerville 06:36:07 -67.0 Dark Up 40.6 91.2 Up 06:21:07 - 06:51:07 -6199
Yerington 06:36:05 -67.3 Dark Up 41.0 91.6 Up 06:21:05 - 06:51:05 -6207
Hawthorne 06:36:05 -67.9 Dark Up 41.5 91.5 Up 06:21:05 - 06:51:05 -6265
Lee Vining 06:36:07 -68.0 Dark Up 41.1 90.7 Up 06:21:07 - 06:51:07 -6312
Niwot 06:35:23 -71.5 Dark Up 51.5 103.0 Up 06:20:23 - 06:50:23 -6342
Tonopah 06:36:01 -69.0 Dark Up 42.6 92.0 Up 06:21:01 - 06:51:01 -6343
Bishop 06:36:06 -68.9 Dark Up 41.7 90.6 Up 06:21:06 - 06:51:06 -6390
Beatty 06:36:02 -70.1 Dark Up 43.0 91.2 Up 06:21:02 - 06:51:02 -6472
Lone Pine 06:36:07 -69.6 Dark Up 42.0 90.2 Up 06:21:07 - 06:51:07 -6475
Indian Springs 06:36:00 -70.9 Dark Up 43.9 91.6 Up 06:21:00 - 06:51:00 -6529
CPSLO 06:36:16 -68.7 Dark Up 39.9 87.6 Up 06:21:16 - 06:51:16 -6551
Henderson 06:36:00 -71.7 Dark Up 44.4 91.5 Up 06:21:00 - 06:51:00 -6599
Searchlight/Boulder City 06:36:01 -72.2 Dark Up 44.5 91.0 Up 06:21:01 - 06:51:01 -6660
Patrick 06:35:57 -72.8 Dark Up 45.3 91.5 Up 06:20:57 - 06:50:57 -6687
Laughlin/Bullhead City 06:35:59 -72.6 Dark Up 44.8 90.9 Up 06:20:59 - 06:50:59 -6698
Kingman/Dolan Springs 06:35:57 -72.8 Dark Up 45.2 91.2 Up 06:20:57 - 06:50:57 -6706
Wildwood 06:36:13 -70.8 Dark Up 41.5 87.6 Up 06:21:13 - 06:51:13 -6724
Mohave Valley 06:36:00 -72.8 Dark Up 44.8 90.6 Up 06:21:00 - 06:51:00 -6727
DCO 06:35:55 -73.4 Dark Up 45.9 91.6 Up 06:20:55 - 06:50:55 -6733
Lake Havasu City 06:36:00 -73.2 Dark Up 45.0 90.3 Up 06:21:00 - 06:51:00 -6774
Idyllwild 06:36:08 -72.3 Dark Up 43.0 88.3 Up 06:21:08 - 06:51:08 -6803
Parker 06:36:01 -73.5 Dark Up 45.0 90.0 Up 06:21:01 - 06:51:01 -6812
Blythe 06:36:02 -73.7 Dark Up 44.8 89.3 Up 06:21:02 - 06:51:02 -6861
Calipatria 06:36:06 -73.4 Dark Up 44.0 88.3 Up 06:21:06 - 06:51:06 -6893
Yuma 06:36:04 -74.3 Dark Up 44.7 88.4 Up 06:21:04 - 06:51:04 -6958

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 95WY2, (2017/12/01 06:33UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.1 +28:01:33  1.1 10.88  78
Alhena         06:37:42.8 +16:23:57  1.9  8.96  63
42Ome Gem      07:02:24.8 +24:12:55  5.2  0.85  68
PPM 096879     07:00:40.4 +23:26:24  7.2  0.21  68
PPM 096905     07:01:25.9 +23:26:47 10.9  0.07  68
95WY2          07:01:34.5 +23:23:17 15.3        68
Positions are for J2000

Event circumstances last updated at 2017/05/23 16:14:43 UT

Marc W. Buie, Southwest Research Institute

RECON