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 05:34:29.8 +20:48:49
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 514 seconds.
The 1-sigma cross-track error in the shadow position is 2994 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 +28:37:15  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 1.7 sigma about the mid-time.
The median site spacing is 23.1 km RECON observability=1.0 and success probability=1.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 05:41:18 -52.9 Dark Up 56.6 139.4 Up 05:26:18 - 05:56:18 10405
Tonasket 05:41:18 -53.0 Dark Up 56.8 139.1 Up 05:26:18 - 05:56:18 10383
Okanogan 05:41:19 -53.1 Dark Up 57.0 138.6 Up 05:26:19 - 05:56:19 10353
Brewster 05:41:20 -53.1 Dark Up 57.1 138.0 Up 05:26:20 - 05:56:20 10330
Manson/Chelan 05:41:22 -53.0 Dark Up 57.1 137.2 Up 05:26:22 - 05:56:22 10315
Entiat 05:41:21 -53.1 Dark Up 57.2 136.9 Up 05:26:21 - 05:56:21 10295
Wenatchee 05:41:22 -53.1 Dark Up 57.3 136.5 Up 05:26:22 - 05:56:22 10272
Ellensburg 05:41:23 -53.2 Dark Up 57.5 135.7 Up 05:26:23 - 05:56:23 10236
Yakima 05:41:24 -53.4 Dark Up 57.8 135.2 Up 05:26:24 - 05:56:24 10197
Toppenish/White Swan 05:41:24 -53.6 Dark Up 58.1 135.2 Up 05:26:24 - 05:56:24 10174
Pasco 05:41:21 -54.4 Dark Up 58.8 137.0 Up 05:26:21 - 05:56:21 10144
Goldendale 05:41:26 -53.6 Dark Up 58.2 134.0 Up 05:26:26 - 05:56:26 10126
PNWRO 05:41:20 -54.7 Dark Up 59.0 137.1 Up 05:26:20 - 05:56:20 10117
George/Umatilla 05:41:22 -54.4 Dark Up 58.9 136.3 Up 05:26:22 - 05:56:22 10115
The Dalles 05:41:26 -53.4 Dark Up 58.2 133.2 Up 05:26:26 - 05:56:26 10110
Maupin 05:41:26 -53.7 Dark Up 58.6 132.8 Up 05:26:26 - 05:56:26 10068
Madras/Culver 05:41:26 -53.9 Dark Up 58.9 132.1 Up 05:26:26 - 05:56:26 10015
Sisters 05:41:26 -53.7 Dark Up 58.9 131.0 Up 05:26:26 - 05:56:26 9990
Redmond 05:41:26 -54.0 Dark Up 59.1 131.6 Up 05:26:26 - 05:56:26 9981
Bend 05:41:26 -54.0 Dark Up 59.2 131.1 Up 05:26:26 - 05:56:26 9962
Oregon Observatory 05:41:26 -54.0 Dark Up 59.2 130.7 Up 05:26:26 - 05:56:26 9947
La Pine/Gilchrist 05:41:26 -54.0 Dark Up 59.3 130.3 Up 05:26:26 - 05:56:26 9928
North Lake 05:41:26 -54.6 Dark Up 59.9 130.7 Up 05:26:26 - 05:56:26 9876
Chiloquin 05:41:26 -54.2 Dark Up 59.8 128.3 Up 05:26:26 - 05:56:26 9825
Paisley 05:41:26 -55.0 Dark Up 60.5 130.5 Up 05:26:26 - 05:56:26 9816
Klamath Falls 05:41:26 -54.3 Dark Up 60.1 128.0 Up 05:26:26 - 05:56:26 9790
Lakeview 05:41:26 -55.3 Dark Up 60.9 130.1 Up 05:26:26 - 05:56:26 9762
Tulelake 05:41:26 -54.6 Dark Up 60.4 128.1 Up 05:26:26 - 05:56:26 9758
Cedarville 05:41:26 -55.7 Dark Up 61.5 129.4 Up 05:26:26 - 05:56:26 9694
Fall River/Burney 05:41:26 -55.0 Dark Up 61.0 126.9 Up 05:26:26 - 05:56:26 9666
Susanville 05:41:26 -55.7 Dark Up 61.9 127.1 Up 05:26:26 - 05:56:26 9590
Greenville 05:41:26 -55.6 Dark Up 61.8 126.2 Up 05:26:26 - 05:56:26 9568
Gimple 05:41:26 -55.7 Dark Up 61.9 126.4 Up 05:26:26 - 05:56:26 9566
Quincy 05:41:26 -55.7 Dark Up 62.0 125.9 Up 05:26:26 - 05:56:26 9547
Portola 05:41:26 -56.1 Dark Up 62.3 126.5 Up 05:26:26 - 05:56:26 9526
Reno 05:41:26 -56.6 Dark Up 62.9 127.0 Up 05:26:26 - 05:56:26 9489
Carson City 05:41:26 -56.8 Dark Up 63.1 126.5 Up 05:26:26 - 05:56:26 9452
Gardnerville 05:41:26 -56.9 Dark Up 63.3 126.2 Up 05:26:26 - 05:56:26 9426
Yerington 05:41:26 -57.3 Dark Up 63.6 127.2 Up 05:26:26 - 05:56:26 9422
Niwot 05:40:43 -66.2 Dark Up 69.4 157.1 Up 05:25:43 - 05:55:43 9371
Hawthorne 05:41:26 -57.8 Dark Up 64.2 127.3 Up 05:26:26 - 05:56:26 9366
Lee Vining 05:41:26 -57.6 Dark Up 64.3 125.5 Up 05:26:26 - 05:56:26 9316
Tonopah 05:41:25 -59.0 Dark Up 65.4 128.8 Up 05:26:25 - 05:56:25 9296
Bishop 05:41:26 -58.4 Dark Up 65.1 125.7 Up 05:26:26 - 05:56:26 9242
Beatty 05:41:25 -59.7 Dark Up 66.4 127.6 Up 05:26:25 - 05:56:25 9169
Lone Pine 05:41:26 -58.8 Dark Up 65.7 124.9 Up 05:26:26 - 05:56:26 9158
Indian Springs 05:41:21 -60.7 Dark Up 67.3 128.8 Up 05:26:21 - 05:56:21 9120
CPSLO 05:41:40 -57.1 Dark Up 64.7 118.6 Up 05:26:40 - 05:56:40 9064
Henderson 05:41:20 -61.3 Dark Up 68.0 129.1 Up 05:26:20 - 05:56:20 9054
Searchlight/Boulder City 05:41:20 -61.6 Dark Up 68.4 128.1 Up 05:26:20 - 05:56:20 8993
Patrick 05:41:17 -62.4 Dark Up 69.1 129.9 Up 05:26:17 - 05:56:17 8973
Laughlin/Bullhead City 05:41:20 -61.9 Dark Up 68.9 128.1 Up 05:26:20 - 05:56:20 8957
Kingman/Dolan Springs 05:41:18 -62.3 Dark Up 69.2 129.1 Up 05:26:18 - 05:56:18 8952
DCO 05:41:14 -63.0 Dark Up 69.8 130.7 Up 05:26:14 - 05:56:14 8931
Mohave Valley 05:41:19 -62.0 Dark Up 69.0 127.6 Up 05:26:19 - 05:56:19 8928
Wildwood 05:41:26 -59.0 Dark Up 66.7 119.2 Up 05:26:26 - 05:56:26 8906
Lake Havasu City 05:41:19 -62.3 Dark Up 69.4 127.2 Up 05:26:19 - 05:56:19 8882
Parker 05:41:20 -62.4 Dark Up 69.7 126.5 Up 05:26:20 - 05:56:20 8845
Idyllwild 05:41:26 -60.6 Dark Up 68.2 121.4 Up 05:26:26 - 05:56:26 8836
Blythe 05:41:22 -62.3 Dark Up 69.8 124.8 Up 05:26:22 - 05:56:22 8793
Calipatria 05:41:25 -61.7 Dark Up 69.4 122.0 Up 05:26:25 - 05:56:25 8754
Yuma 05:41:22 -62.5 Dark Up 70.3 122.6 Up 05:26:22 - 05:56:22 8695

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 2017/12/02 17:08:16 UT

Marc W. Buie, Southwest Research Institute

RECON