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 07:21:25 UTC

J2000 position of star is 07:11:28.7 +01:33:59
Equinox of date position of star is 07:12:22.7 +01:32:11
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 105 seconds.
The 1-sigma cross-track error in the shadow position is 1540 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=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Chiloquin 07:21:04 -62.7 Dark Down 12.8 99.8 Really Low 07:11:51 - 07:30:17 8581
Klamath Falls 07:21:08 -63.0 Dark Down 12.9 99.8 Really Low 07:11:55 - 07:30:21 8580
Tulelake 07:21:10 -63.3 Dark Down 13.2 100.0 Really Low 07:11:57 - 07:30:23 8574
La Pine/Gilchrist 07:20:53 -61.6 Dark Down 12.8 100.3 Really Low 07:11:40 - 07:30:06 8573
Sisters 07:20:46 -61.0 Dark Down 12.6 100.4 Really Low 07:11:33 - 07:29:59 8572
Oregon Observatory 07:20:50 -61.5 Dark Down 12.8 100.4 Really Low 07:11:37 - 07:30:03 8571
Fall River/Burney 07:21:20 -64.2 Dark Down 13.4 99.8 Really Low 07:12:07 - 07:30:33 8571
Bend 07:20:49 -61.3 Dark Down 12.9 100.5 Really Low 07:11:36 - 07:30:02 8568
Redmond 07:20:45 -61.1 Dark Down 12.9 100.6 Really Low 07:11:32 - 07:29:58 8564
North Lake 07:20:56 -62.2 Dark Down 13.3 100.6 Really Low 07:11:43 - 07:30:09 8562
Madras/Culver 07:20:41 -60.8 Dark Down 12.9 100.7 Really Low 07:11:28 - 07:29:54 8562
Greenville 07:21:28 -65.2 Dark Down 14.0 99.9 Really Low 07:12:15 - 07:30:41 8559
Quincy 07:21:30 -65.4 Dark Down 14.0 99.9 Really Low 07:12:17 - 07:30:43 8558
Maupin 07:20:36 -60.2 Dark Down 12.8 100.9 Really Low 07:11:23 - 07:29:49 8558
Gimple 07:21:27 -65.2 Dark Down 14.0 100.0 Really Low 07:12:14 - 07:30:40 8557
The Dalles 07:20:33 -59.8 Dark Down 12.6 100.9 Really Low 07:11:20 - 07:29:46 8557
Paisley 07:21:00 -62.8 Dark Down 13.7 100.8 Really Low 07:11:47 - 07:30:13 8556
Susanville 07:21:25 -65.0 Dark Down 14.1 100.2 Really Low 07:12:12 - 07:30:38 8554
Lakeview 07:21:07 -63.3 Dark Down 14.0 100.8 Really Low 07:11:54 - 07:30:20 8552
Goldendale 07:20:29 -59.7 Dark Down 12.8 101.2 Really Low 07:11:16 - 07:29:42 8549
Portola 07:21:32 -65.6 Dark Down 14.4 100.2 Really Low 07:12:19 - 07:30:45 8548
Cedarville 07:21:13 -64.0 Dark Down 14.2 100.8 Really Low 07:12:00 - 07:30:26 8547
Yakima 07:20:21 -58.9 Dark Down 12.8 101.5 Really Low 07:11:08 - 07:29:34 8539
Toppenish/White Swan 07:20:23 -59.2 Dark Down 13.0 101.6 Really Low 07:11:10 - 07:29:36 8537
Ellensburg 07:20:15 -58.5 Dark Down 12.7 101.6 Really Low 07:11:02 - 07:29:28 8535
Reno 07:21:30 -66.0 Dark Down 14.9 100.6 Really Low 07:12:17 - 07:30:43 8532
Carson City 07:21:35 -66.3 Dark Down 15.0 100.5 Really Low 07:12:22 - 07:30:48 8530
Wenatchee 07:20:11 -58.2 Dark Down 12.8 101.9 Really Low 07:10:58 - 07:29:24 8527
Gardnerville 07:21:38 -66.6 Dark Down 15.1 100.5 Really Low 07:12:25 - 07:30:51 8527
Entiat 07:20:11 -57.9 Dark Down 12.8 102.0 Really Low 07:10:58 - 07:29:24 8523
George/Umatilla 07:20:27 -59.8 Dark Down 13.8 102.3 Really Low 07:11:14 - 07:29:40 8520
Manson/Chelan 07:20:08 -57.7 Dark Down 12.8 102.1 Really Low 07:10:55 - 07:29:21 8520
Yerington 07:21:36 -66.6 Dark Down 15.5 100.9 Really Low 07:12:23 - 07:30:49 8514
Pasco 07:20:25 -59.5 Dark Down 13.9 102.6 Really Low 07:11:12 - 07:29:38 8514
PNWRO 07:20:25 -59.7 Dark Down 14.1 102.7 Really Low 07:11:12 - 07:29:38 8511
Brewster 07:20:06 -57.6 Dark Down 13.0 102.4 Really Low 07:10:53 - 07:29:19 8511
CPSLO 07:22:15 -70.0 Dark Down 15.1 99.0 Really Low 07:13:02 - 07:31:28 8509
Lee Vining 07:21:47 -67.7 Dark Down 15.8 100.7 Really Low 07:12:34 - 07:31:00 8506
Okanogan 07:20:03 -57.3 Dark Down 13.1 102.6 Really Low 07:10:50 - 07:29:16 8504
Hawthorne 07:21:39 -67.2 Dark Down 16.1 101.1 Really Low 07:12:26 - 07:30:52 8498
Tonasket 07:19:57 -57.0 Dark Down 13.1 102.8 Really Low 07:10:44 - 07:29:10 8497
Oroville 07:19:57 -56.8 Dark Down 13.0 102.9 Really Low 07:10:44 - 07:29:10 8495
Bishop 07:21:56 -68.4 Dark Down 16.5 101.0 Really Low 07:12:43 - 07:31:09 8482
Lone Pine 07:21:58 -69.2 Dark Down 16.9 101.0 Really Low 07:12:45 - 07:31:11 8465
Tonopah 07:21:43 -67.8 Dark Down 17.2 101.9 Really Low 07:12:30 - 07:30:56 8461
Wildwood 07:22:28 -71.6 Dark Down 17.0 100.0 Really Low 07:13:15 - 07:31:41 8442
Beatty 07:21:54 -69.0 Dark Down 17.9 101.9 Really Low 07:12:41 - 07:31:07 8436
Indian Springs 07:21:59 -69.4 Dark Down 18.8 102.5 Really Low 07:12:46 - 07:31:12 8403
Idyllwild 07:22:28 -72.2 Dark Down 18.7 101.0 Really Low 07:13:15 - 07:31:41 8388
Henderson 07:22:03 -69.9 Dark Down 19.5 102.8 Really Low 07:12:50 - 07:31:16 8376
Searchlight/Boulder City 07:22:07 -70.5 Dark Down 19.7 102.7 Really Low 07:12:54 - 07:31:20 8366
Laughlin/Bullhead City 07:22:10 -70.8 Dark Down 20.0 102.8 Low 07:12:57 - 07:31:23 8351
Mohave Valley 07:22:12 -71.1 Dark Down 20.1 102.7 Low 07:12:59 - 07:31:25 8346
Calipatria 07:22:32 -72.8 Dark Down 19.8 101.5 Really Low 07:13:19 - 07:31:45 8342
Kingman/Dolan Springs 07:22:09 -70.8 Dark Down 20.4 103.1 Low 07:12:56 - 07:31:22 8337
Patrick 07:22:07 -70.6 Dark Down 20.5 103.3 Low 07:12:54 - 07:31:20 8335
Lake Havasu City 07:22:15 -71.5 Dark Down 20.4 102.7 Low 07:13:02 - 07:31:28 8332
Parker 07:22:15 -71.8 Dark Down 20.5 102.6 Low 07:13:02 - 07:31:28 8325
Blythe 07:22:25 -72.4 Dark Down 20.4 102.3 Low 07:13:12 - 07:31:38 8324
DCO 07:22:07 -70.8 Dark Down 21.2 103.7 Low 07:12:54 - 07:31:20 8309
Yuma 07:22:35 -73.3 Dark Down 20.6 101.9 Low 07:13:22 - 07:31:48 8307
Niwot 07:21:00 -64.6 Dark Down 25.5 111.2 Low 07:11:47 - 07:30:13 8113

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 -16:43:19 -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 2017/05/19 18:05:27 UT

Marc W. Buie, Southwest Research Institute

RECON