RECON: TNO occultation with 14YY49

Event between 14YY49 and star UC4-458-031896 with event index number of 161129

Geocentric closest approach at 2018/11/06 07:21:26 UTC

J2000 position of star is 07:11:28.7 +01:33:59
Equinox of date position of star is 07:12:24.4 +01:32:08
Stellar brightness R=16.0, use SENSEUP=128
Star is 99 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=23.0

[RECON map]
TNO is 18.5 AU from the Sun and 18.1 AU from the Earth.
The TNO is moving 10.8 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 150 seconds.
The 1-sigma cross-track error in the shadow position is 2327 km.
The sky-plane scale is 13109.2 km/arcsec.

The TNO has an absolute magnitude Hv=10.1
Diameter=58.3 km assuming a 5% albedo -- 5.4 sec chord
Diameter=23.8 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14YY49, (2018/11/06 07:21UT)
Object            RA         Dec     mag  sep  mel
Sirius         06:45:58.7 -16:44:34 -1.5 19.41 103
Alhena         06:38:48.0 +16:22:54  1.9 17.00 108
21 Mon         07:12:21.4 -00:20:05  5.5  1.87  99
PPM 152051     07:10:28.5 +01:53:19  7.4  0.61  99
PPM 152117     07:12:20.4 +01:36:21  9.2  0.08  99
14YY49         07:12:27.3 +01:32:02 16.0        99
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 4.6 km RECON observability=0.2 and success probability=0.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Chiloquin 07:21:02 -62.7 Dark Down 12.8 99.8 Really Low 07:08:05 - 07:34:00 8585
Klamath Falls 07:21:09 -63.0 Dark Down 12.9 99.8 Really Low 07:08:12 - 07:34:07 8584
Tulelake 07:21:08 -63.3 Dark Down 13.2 100.0 Really Low 07:08:10 - 07:34:05 8578
La Pine/Gilchrist 07:20:51 -61.6 Dark Down 12.8 100.3 Really Low 07:07:53 - 07:33:48 8577
Sisters 07:20:46 -61.0 Dark Down 12.6 100.4 Really Low 07:07:49 - 07:33:44 8576
Fall River/Burney 07:21:18 -64.2 Dark Down 13.4 99.8 Really Low 07:08:20 - 07:34:15 8575
Oregon Observatory 07:20:50 -61.4 Dark Down 12.8 100.4 Really Low 07:07:52 - 07:33:47 8575
Bend 07:20:46 -61.3 Dark Down 12.9 100.5 Really Low 07:07:49 - 07:33:44 8572
Redmond 07:20:48 -61.1 Dark Down 12.9 100.6 Really Low 07:07:51 - 07:33:46 8569
North Lake 07:20:54 -62.2 Dark Down 13.3 100.6 Really Low 07:07:57 - 07:33:52 8566
Madras/Culver 07:20:42 -60.8 Dark Down 12.9 100.7 Really Low 07:07:45 - 07:33:40 8566
Greenville 07:21:28 -65.2 Dark Down 14.0 99.9 Really Low 07:08:30 - 07:34:25 8564
Maupin 07:20:38 -60.2 Dark Down 12.8 100.9 Really Low 07:07:41 - 07:33:36 8563
Quincy 07:21:32 -65.4 Dark Down 14.0 99.9 Really Low 07:08:34 - 07:34:29 8563
The Dalles 07:20:34 -59.8 Dark Down 12.6 100.9 Really Low 07:07:36 - 07:33:31 8562
Gimple 07:21:28 -65.2 Dark Down 14.0 100.0 Really Low 07:08:31 - 07:34:26 8562
Paisley 07:21:00 -62.8 Dark Down 13.7 100.8 Really Low 07:08:03 - 07:33:58 8560
Susanville 07:21:25 -65.0 Dark Down 14.1 100.2 Really Low 07:08:27 - 07:34:22 8559
Lakeview 07:21:07 -63.3 Dark Down 14.0 100.8 Really Low 07:08:10 - 07:34:05 8556
Goldendale 07:20:31 -59.7 Dark Down 12.8 101.2 Really Low 07:07:34 - 07:33:29 8554
Portola 07:21:30 -65.6 Dark Down 14.4 100.2 Really Low 07:08:33 - 07:34:28 8552
Cedarville 07:21:13 -64.0 Dark Down 14.2 100.8 Really Low 07:08:15 - 07:34:10 8552
Yakima 07:20:22 -58.9 Dark Down 12.8 101.5 Really Low 07:07:24 - 07:33:19 8544
Toppenish/White Swan 07:20:23 -59.2 Dark Down 13.0 101.6 Really Low 07:07:26 - 07:33:21 8543
Ellensburg 07:20:21 -58.5 Dark Down 12.8 101.6 Really Low 07:07:24 - 07:33:19 8540
Reno 07:21:34 -66.0 Dark Down 14.9 100.6 Really Low 07:08:36 - 07:34:31 8537
Carson City 07:21:37 -66.3 Dark Down 15.0 100.5 Really Low 07:08:40 - 07:34:35 8535
Wenatchee 07:20:12 -58.2 Dark Down 12.8 101.9 Really Low 07:07:14 - 07:33:09 8532
Gardnerville 07:21:39 -66.6 Dark Down 15.1 100.5 Really Low 07:08:41 - 07:34:36 8532
Entiat 07:20:13 -57.9 Dark Down 12.8 102.0 Really Low 07:07:15 - 07:33:10 8528
George/Umatilla 07:20:26 -59.8 Dark Down 13.8 102.3 Really Low 07:07:28 - 07:33:23 8526
Manson/Chelan 07:20:08 -57.7 Dark Down 12.8 102.1 Really Low 07:07:10 - 07:33:05 8525
Yerington 07:21:37 -66.6 Dark Down 15.6 100.9 Really Low 07:08:40 - 07:34:35 8520
Pasco 07:20:24 -59.5 Dark Down 13.9 102.6 Really Low 07:07:27 - 07:33:22 8519
PNWRO 07:20:25 -59.7 Dark Down 14.1 102.7 Really Low 07:07:28 - 07:33:23 8516
Brewster 07:20:04 -57.6 Dark Down 13.0 102.4 Really Low 07:07:07 - 07:33:02 8516
CPSLO 07:22:18 -70.0 Dark Down 15.1 99.0 Really Low 07:09:20 - 07:35:15 8515
Lee Vining 07:21:49 -67.7 Dark Down 15.8 100.7 Really Low 07:08:52 - 07:34:47 8510
Okanogan 07:20:04 -57.3 Dark Down 13.1 102.6 Really Low 07:07:06 - 07:33:01 8509
Hawthorne 07:21:44 -67.2 Dark Down 16.1 101.1 Really Low 07:08:46 - 07:34:41 8504
Tonasket 07:19:58 -57.0 Dark Down 13.1 102.8 Really Low 07:07:00 - 07:32:55 8502
Oroville 07:19:56 -56.8 Dark Down 13.0 102.8 Really Low 07:06:58 - 07:32:53 8500
Bishop 07:21:53 -68.4 Dark Down 16.5 101.0 Really Low 07:08:56 - 07:34:51 8488
Lone Pine 07:21:57 -69.2 Dark Down 16.9 101.0 Really Low 07:08:59 - 07:34:54 8471
Tonopah 07:21:44 -67.8 Dark Down 17.3 101.9 Really Low 07:08:47 - 07:34:42 8466
Wildwood 07:22:26 -71.6 Dark Down 17.0 100.0 Really Low 07:09:29 - 07:35:24 8449
Beatty 07:21:55 -69.0 Dark Down 17.9 101.9 Really Low 07:08:57 - 07:34:52 8442
Indian Springs 07:21:57 -69.4 Dark Down 18.8 102.5 Really Low 07:08:59 - 07:34:54 8410
Idyllwild 07:22:28 -72.2 Dark Down 18.7 101.0 Really Low 07:09:30 - 07:35:25 8394
Henderson 07:22:03 -69.9 Dark Down 19.5 102.8 Really Low 07:09:06 - 07:35:01 8384
Searchlight/Boulder City 07:22:10 -70.5 Dark Down 19.7 102.7 Really Low 07:09:13 - 07:35:08 8373
Laughlin/Bullhead City 07:22:11 -70.8 Dark Down 20.0 102.8 Low 07:09:13 - 07:35:08 8359
Mohave Valley 07:22:11 -71.1 Dark Down 20.1 102.7 Low 07:09:13 - 07:35:08 8354
Calipatria 07:22:35 -72.8 Dark Down 19.8 101.5 Really Low 07:09:37 - 07:35:32 8350
Kingman/Dolan Springs 07:22:08 -70.8 Dark Down 20.4 103.1 Low 07:09:11 - 07:35:06 8344
Patrick 07:22:05 -70.6 Dark Down 20.5 103.3 Low 07:09:07 - 07:35:02 8342
Lake Havasu City 07:22:14 -71.5 Dark Down 20.4 102.7 Low 07:09:17 - 07:35:12 8340
Parker 07:22:18 -71.8 Dark Down 20.5 102.6 Low 07:09:20 - 07:35:15 8333
Blythe 07:22:25 -72.4 Dark Down 20.4 102.3 Low 07:09:27 - 07:35:22 8333
DCO 07:22:08 -70.8 Dark Down 21.2 103.7 Low 07:09:11 - 07:35:06 8316
Yuma 07:22:32 -73.3 Dark Down 20.6 101.9 Low 07:09:34 - 07:35:29 8316
Niwot 07:21:02 -64.6 Dark Down 25.5 111.2 Low 07:08:05 - 07:34:00 8121

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 14YY49, (2018/11/06 07:21UT)
Object            RA         Dec     mag  sep  mel
Sirius         06:45:08.2 -16:43:20 -1.5 19.41 103
Alhena         06:37:42.8 +16:23:57  1.9 17.00 108
21 Mon         07:11:23.6 -00:18:08  5.5  1.87  99
PPM 152051     07:09:29.8 +01:55:13  7.4  0.61  99
PPM 152117     07:11:21.8 +01:38:18  9.2  0.08  99
14YY49         07:11:28.7 +01:33:59 16.0        99
Positions are for J2000

Event circumstances last updated at 2017/12/05 19:02:17 UT

Marc W. Buie, Southwest Research Institute

RECON