RECON: TNO occultation with 14YY49

Event between 14YY49 and star UC4-458-028181 with event index number of 179173

Geocentric closest approach at 2019/01/28 05:10:10 UTC

J2000 position of star is 06:59:55.5 +01:25:26
Equinox of date position of star is 07:00:49.5 +01:23:55
Stellar brightness R=14.6, use SENSEUP=128
Star is 116 degrees from the moon. Moon is 47% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 18.7 AU from the Sun and 17.8 AU from the Earth.
The TNO is moving 21.5 km/sec on the sky relative to the star, or, 6.0 arcsec/hr.
The 1-sigma error in the time of the event is 77 seconds.
The 1-sigma cross-track error in the shadow position is 918 km.
The sky-plane scale is 12919.9 km/arcsec.

The TNO has an absolute magnitude Hv=10.1
Diameter=58.3 km assuming a 5% albedo -- 2.7 sec chord
Diameter=23.8 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14YY49, (2019/01/28 05:10UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:12.3 +07:24:33  0.4 17.21 133
Alhena         06:38:48.8 +16:22:53  1.9 15.94 123
PPM 151661     06:59:57.2 +03:34:30  6.0  2.19 117
PPM 151685     07:00:35.2 +01:02:26  8.5  0.36 116
PPM 151688     07:00:43.9 +01:31:50  9.1  0.14 116
14YY49         07:00:54.7 +01:23:46 14.6       116
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 18.7 km RECON observability=1.0 and success probability=38.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 05:12:19 -42.9 Dark Down 39.7 154.8 Up 05:05:26 - 05:19:12 564
Tonasket 05:12:19 -43.0 Dark Down 39.9 154.7 Up 05:05:26 - 05:19:12 545
Okanogan 05:12:19 -43.1 Dark Down 40.2 154.4 Up 05:05:26 - 05:19:12 515
Brewster 05:12:20 -43.0 Dark Down 40.4 154.0 Up 05:05:27 - 05:19:13 489
Manson/Chelan 05:12:21 -42.9 Dark Down 40.5 153.5 Up 05:05:28 - 05:19:14 464
Entiat 05:12:21 -42.9 Dark Down 40.6 153.3 Up 05:05:28 - 05:19:14 445
Wenatchee 05:12:22 -43.0 Dark Down 40.8 153.1 Up 05:05:29 - 05:19:15 422
Ellensburg 05:12:22 -43.0 Dark Down 41.1 152.7 Up 05:05:29 - 05:19:15 383
Pasco 05:12:18 -44.2 Dark Down 42.2 154.1 Up 05:05:25 - 05:19:11 352
Yakima 05:12:23 -43.1 Dark Down 41.5 152.5 Up 05:05:30 - 05:19:16 349
PNWRO 05:12:17 -44.4 Dark Down 42.5 154.3 Up 05:05:24 - 05:19:10 337
Toppenish/White Swan 05:12:22 -43.3 Dark Down 41.7 152.6 Up 05:05:29 - 05:19:15 335
George/Umatilla 05:12:19 -44.2 Dark Down 42.5 153.7 Up 05:05:26 - 05:19:12 320
Goldendale 05:12:24 -43.2 Dark Down 42.1 151.8 Up 05:05:31 - 05:19:17 279
The Dalles 05:12:25 -43.1 Dark Down 42.2 151.3 Up 05:05:32 - 05:19:18 253
Maupin 05:12:24 -43.3 Dark Down 42.6 151.2 Up 05:05:31 - 05:19:17 219
Niwot 05:11:26 -55.9 Dark Down 51.0 171.9 Up 05:04:33 - 05:18:19 175
Madras/Culver 05:12:24 -43.5 Dark Down 43.0 150.9 Up 05:05:31 - 05:19:17 172
Redmond 05:12:25 -43.5 Dark Down 43.3 150.7 Up 05:05:32 - 05:19:18 141
Sisters 05:12:26 -43.3 Dark Down 43.2 150.2 Up 05:05:33 - 05:19:19 134
Bend 05:12:25 -43.5 Dark Down 43.5 150.4 Up 05:05:32 - 05:19:18 119
Oregon Observatory 05:12:26 -43.5 Dark Down 43.6 150.2 Up 05:05:33 - 05:19:19 102
La Pine/Gilchrist 05:12:26 -43.5 Dark Down 43.7 150.0 Up 05:05:33 - 05:19:19 83
North Lake 05:12:24 -44.0 Dark Down 44.3 150.6 Up 05:05:31 - 05:19:17 60
Paisley 05:12:23 -44.5 Dark Down 44.9 150.8 Up 05:05:30 - 05:19:16 19
Lakeview 05:12:22 -44.8 Dark Down 45.4 150.8 Up 05:05:29 - 05:19:15 -22
Chiloquin 05:12:27 -43.6 Dark Down 44.6 149.0 Up 05:05:34 - 05:19:20 -23
Klamath Falls 05:12:27 -43.7 Dark Down 44.9 148.9 Up 05:05:34 - 05:19:20 -52
Tulelake 05:12:26 -44.0 Dark Down 45.2 149.2 Up 05:05:33 - 05:19:19 -69
Cedarville 05:12:21 -45.1 Dark Down 46.1 150.7 Up 05:05:28 - 05:19:14 -76
Fall River/Burney 05:12:26 -44.3 Dark Down 46.0 148.8 Up 05:05:33 - 05:19:19 -148
Susanville 05:12:23 -45.0 Dark Down 46.9 149.4 Up 05:05:30 - 05:19:16 -186
Gimple 05:12:24 -45.0 Dark Down 47.0 149.0 Up 05:05:31 - 05:19:17 -216
Greenville 05:12:24 -44.9 Dark Down 47.0 148.9 Up 05:05:31 - 05:19:17 -219
Portola 05:12:22 -45.3 Dark Down 47.5 149.3 Up 05:05:29 - 05:19:15 -236
Quincy 05:12:24 -45.0 Dark Down 47.2 148.8 Up 05:05:31 - 05:19:17 -237
Reno 05:12:20 -45.9 Dark Down 47.9 150.1 Up 05:05:27 - 05:19:13 -244
Carson City 05:12:20 -46.0 Dark Down 48.3 149.9 Up 05:05:27 - 05:19:13 -276
Yerington 05:12:17 -46.5 Dark Down 48.7 150.7 Up 05:05:24 - 05:19:10 -279
Gardnerville 05:12:20 -46.1 Dark Down 48.5 149.8 Up 05:05:27 - 05:19:13 -297
Hawthorne 05:12:15 -47.0 Dark Down 49.3 151.1 Up 05:05:22 - 05:19:08 -307
Tonopah 05:12:10 -48.2 Dark Down 50.2 152.9 Up 05:05:17 - 05:19:03 -314
Lee Vining 05:12:17 -46.8 Dark Down 49.6 150.1 Up 05:05:24 - 05:19:10 -371
Bishop 05:12:14 -47.5 Dark Down 50.4 150.8 Up 05:05:21 - 05:19:07 -408
Beatty 05:12:08 -48.9 Dark Down 51.4 152.9 Up 05:05:15 - 05:19:01 -409
Indian Springs 05:12:03 -49.8 Dark Down 52.1 154.3 Up 05:05:10 - 05:18:56 -411
Henderson 05:12:00 -50.5 Dark Down 52.8 155.1 Up 05:05:07 - 05:18:53 -442
Lone Pine 05:12:13 -47.9 Dark Down 51.2 150.8 Up 05:05:20 - 05:19:06 -470
Patrick 05:11:55 -51.5 Dark Down 53.7 156.5 Up 05:05:02 - 05:18:48 -470
DCO 05:11:52 -52.1 Dark Down 54.2 157.4 Up 05:04:59 - 05:18:45 -479
Searchlight/Boulder City 05:12:00 -50.7 Dark Down 53.3 154.8 Up 05:05:07 - 05:18:53 -493
Kingman/Dolan Springs 05:11:56 -51.4 Dark Down 53.9 156.0 Up 05:05:03 - 05:18:49 -496
Laughlin/Bullhead City 05:11:58 -51.0 Dark Down 53.7 155.2 Up 05:05:05 - 05:18:51 -512
Mohave Valley 05:11:58 -51.1 Dark Down 54.0 155.1 Up 05:05:05 - 05:18:51 -537
Lake Havasu City 05:11:57 -51.4 Dark Down 54.4 155.2 Up 05:05:04 - 05:18:50 -568
Parker 05:11:56 -51.5 Dark Down 54.7 155.1 Up 05:05:03 - 05:18:49 -600
Blythe 05:11:57 -51.4 Dark Down 55.1 154.3 Up 05:05:04 - 05:18:50 -657
CPSLO 05:12:22 -46.2 Dark Down 51.2 146.3 Up 05:05:29 - 05:19:15 -658
Idyllwild 05:12:06 -49.6 Dark Down 54.2 151.0 Up 05:05:13 - 05:18:59 -702
Wildwood 05:12:14 -48.1 Dark Down 53.1 148.4 Up 05:05:21 - 05:19:07 -719
Calipatria 05:12:01 -50.7 Dark Down 55.2 152.4 Up 05:05:08 - 05:18:54 -729
Yuma 05:11:57 -51.5 Dark Down 55.9 153.6 Up 05:05:04 - 05:18:50 -745

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, (2019/01/28 05:10UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 17.21 133
Alhena         06:37:42.8 +16:23:57  1.9 15.94 123
PPM 151661     06:58:57.0 +03:36:08  6.0  2.19 117
PPM 151685     06:59:36.1 +01:04:05  8.5  0.36 116
PPM 151688     06:59:44.6 +01:33:29  9.1  0.14 116
14YY49         06:59:55.5 +01:25:26 14.6       116
Positions are for J2000

Event circumstances last updated at 2017/05/20 18:09:29 UT

Marc W. Buie, Southwest Research Institute

RECON