RECON: TNO occultation with 00YE2

Event between 00YE2 and star UC4-555-016664 with event index number of 92875

Geocentric closest approach at 2017/12/26 05:40:16 UTC

J2000 position of star is 05:33:25.6 +20:48:08
Equinox of date position of star is 05:34:27.8 +20:48:48
Stellar brightness R=16.0, use SENSEUP=128
Star is 81 degrees from the moon. Moon is 49% illuminated.
TNO apparent brightness V=24.1

[RECON map]
TNO is 38.4 AU from the Sun and 37.4 AU from the Earth.
The TNO is moving 24.5 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 508 seconds.
The 1-sigma cross-track error in the shadow position is 2964 km.
The sky-plane scale is 27157.0 km/arcsec.

The TNO has an absolute magnitude Hv=8.3
Diameter=133.7 km assuming a 5% albedo -- 5.5 sec chord
Diameter=54.6 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is 2:1E
 
 
 
 
 
 

Star training set for 00YE2, (2017/12/26 05:40UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:36:57.3 +16:32:39  0.8 14.27  67
Alnath         05:27:25.8 +28:37:16  1.6  7.97  80
PPM 094484     05:34:43.1 +20:29:07  6.0  0.33  81
00YE2          05:34:30.0 +20:48:49 16.0        81
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 23.1 km RECON observability=1.0 and success probability=1.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 05:41:17 -52.9 Dark Up 56.6 139.3 Up 05:26:17 - 05:56:17 10401
Tonasket 05:41:17 -53.0 Dark Up 56.8 139.1 Up 05:26:17 - 05:56:17 10379
Okanogan 05:41:18 -53.1 Dark Up 57.0 138.6 Up 05:26:18 - 05:56:18 10349
Brewster 05:41:19 -53.1 Dark Up 57.1 138.0 Up 05:26:19 - 05:56:19 10326
Manson/Chelan 05:41:21 -53.0 Dark Up 57.1 137.2 Up 05:26:21 - 05:56:21 10311
Entiat 05:41:21 -53.1 Dark Up 57.2 136.9 Up 05:26:21 - 05:56:21 10291
Wenatchee 05:41:22 -53.1 Dark Up 57.3 136.5 Up 05:26:22 - 05:56:22 10268
Ellensburg 05:41:23 -53.2 Dark Up 57.5 135.7 Up 05:26:23 - 05:56:23 10232
Yakima 05:41:23 -53.4 Dark Up 57.8 135.2 Up 05:26:23 - 05:56:23 10193
Toppenish/White Swan 05:41:23 -53.6 Dark Up 58.1 135.2 Up 05:26:23 - 05:56:23 10170
Pasco 05:41:20 -54.4 Dark Up 58.8 137.0 Up 05:26:20 - 05:56:20 10141
Goldendale 05:41:26 -53.6 Dark Up 58.2 134.0 Up 05:26:26 - 05:56:26 10123
PNWRO 05:41:20 -54.7 Dark Up 59.0 137.1 Up 05:26:20 - 05:56:20 10114
George/Umatilla 05:41:21 -54.4 Dark Up 58.9 136.3 Up 05:26:21 - 05:56:21 10111
The Dalles 05:41:26 -53.4 Dark Up 58.2 133.2 Up 05:26:26 - 05:56:26 10106
Maupin 05:41:26 -53.7 Dark Up 58.6 132.8 Up 05:26:26 - 05:56:26 10064
Madras/Culver 05:41:26 -53.9 Dark Up 58.9 132.1 Up 05:26:26 - 05:56:26 10011
Sisters 05:41:26 -53.7 Dark Up 58.9 131.0 Up 05:26:26 - 05:56:26 9986
Redmond 05:41:26 -54.0 Dark Up 59.1 131.6 Up 05:26:26 - 05:56:26 9977
Bend 05:41:26 -54.0 Dark Up 59.2 131.1 Up 05:26:26 - 05:56:26 9958
Oregon Observatory 05:41:26 -54.0 Dark Up 59.2 130.7 Up 05:26:26 - 05:56:26 9943
La Pine/Gilchrist 05:41:26 -54.0 Dark Up 59.3 130.3 Up 05:26:26 - 05:56:26 9924
North Lake 05:41:26 -54.6 Dark Up 59.9 130.7 Up 05:26:26 - 05:56:26 9872
Chiloquin 05:41:26 -54.2 Dark Up 59.8 128.3 Up 05:26:26 - 05:56:26 9821
Paisley 05:41:26 -55.0 Dark Up 60.5 130.5 Up 05:26:26 - 05:56:26 9812
Klamath Falls 05:41:26 -54.3 Dark Up 60.1 128.0 Up 05:26:26 - 05:56:26 9786
Lakeview 05:41:26 -55.3 Dark Up 60.9 130.1 Up 05:26:26 - 05:56:26 9759
Tulelake 05:41:26 -54.6 Dark Up 60.4 128.1 Up 05:26:26 - 05:56:26 9754
Cedarville 05:41:26 -55.7 Dark Up 61.5 129.4 Up 05:26:26 - 05:56:26 9690
Fall River/Burney 05:41:26 -55.0 Dark Up 61.0 126.9 Up 05:26:26 - 05:56:26 9662
Susanville 05:41:26 -55.7 Dark Up 61.9 127.1 Up 05:26:26 - 05:56:26 9586
Greenville 05:41:26 -55.6 Dark Up 61.8 126.2 Up 05:26:26 - 05:56:26 9563
Gimple 05:41:26 -55.7 Dark Up 61.9 126.4 Up 05:26:26 - 05:56:26 9562
Quincy 05:41:26 -55.7 Dark Up 62.0 125.9 Up 05:26:26 - 05:56:26 9543
Portola 05:41:26 -56.1 Dark Up 62.3 126.5 Up 05:26:26 - 05:56:26 9522
Reno 05:41:26 -56.6 Dark Up 62.9 127.0 Up 05:26:26 - 05:56:26 9485
Carson City 05:41:26 -56.8 Dark Up 63.1 126.5 Up 05:26:26 - 05:56:26 9448
Gardnerville 05:41:26 -56.9 Dark Up 63.3 126.2 Up 05:26:26 - 05:56:26 9422
Yerington 05:41:26 -57.3 Dark Up 63.6 127.2 Up 05:26:26 - 05:56:26 9418
Niwot 05:40:42 -66.2 Dark Up 69.4 157.1 Up 05:25:42 - 05:55:42 9370
Hawthorne 05:41:26 -57.8 Dark Up 64.2 127.3 Up 05:26:26 - 05:56:26 9362
Lee Vining 05:41:26 -57.6 Dark Up 64.3 125.5 Up 05:26:26 - 05:56:26 9312
Tonopah 05:41:24 -59.0 Dark Up 65.4 128.8 Up 05:26:24 - 05:56:24 9293
Bishop 05:41:26 -58.4 Dark Up 65.1 125.7 Up 05:26:26 - 05:56:26 9238
Beatty 05:41:24 -59.7 Dark Up 66.4 127.6 Up 05:26:24 - 05:56:24 9166
Lone Pine 05:41:26 -58.8 Dark Up 65.7 124.9 Up 05:26:26 - 05:56:26 9154
Indian Springs 05:41:21 -60.7 Dark Up 67.3 128.8 Up 05:26:21 - 05:56:21 9116
CPSLO 05:41:40 -57.1 Dark Up 64.7 118.6 Up 05:26:40 - 05:56:40 9059
Henderson 05:41:19 -61.3 Dark Up 68.0 129.1 Up 05:26:19 - 05:56:19 9051
Searchlight/Boulder City 05:41:19 -61.6 Dark Up 68.4 128.1 Up 05:26:19 - 05:56:19 8990
Patrick 05:41:16 -62.4 Dark Up 69.1 129.9 Up 05:26:16 - 05:56:16 8970
Laughlin/Bullhead City 05:41:19 -61.9 Dark Up 68.8 128.1 Up 05:26:19 - 05:56:19 8953
Kingman/Dolan Springs 05:41:17 -62.3 Dark Up 69.2 129.1 Up 05:26:17 - 05:56:17 8949
DCO 05:41:14 -63.0 Dark Up 69.8 130.7 Up 05:26:14 - 05:56:14 8928
Mohave Valley 05:41:19 -62.0 Dark Up 69.0 127.6 Up 05:26:19 - 05:56:19 8924
Wildwood 05:41:26 -59.0 Dark Up 66.7 119.2 Up 05:26:26 - 05:56:26 8901
Lake Havasu City 05:41:18 -62.3 Dark Up 69.4 127.2 Up 05:26:18 - 05:56:18 8879
Parker 05:41:18 -62.4 Dark Up 69.7 126.5 Up 05:26:18 - 05:56:18 8841
Idyllwild 05:41:26 -60.6 Dark Up 68.2 121.4 Up 05:26:26 - 05:56:26 8833
Blythe 05:41:20 -62.3 Dark Up 69.8 124.8 Up 05:26:20 - 05:56:20 8789
Calipatria 05:41:23 -61.7 Dark Up 69.4 122.0 Up 05:26:23 - 05:56:23 8750
Yuma 05:41:21 -62.5 Dark Up 70.3 122.6 Up 05:26:21 - 05:56:21 8692

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 00YE2, (2017/12/26 05:40UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 14.27  67
Alnath         05:26:17.5 +28:36:24  1.6  7.97  80
PPM 094484     05:33:38.8 +20:28:27  6.0  0.33  81
00YE2          05:33:25.6 +20:48:08 16.0        81
Positions are for J2000

Event circumstances last updated at 2017/05/13 17:33:33 UT

Marc W. Buie, Southwest Research Institute

RECON