RECON: TNO occultation with 14YY49

Event between 14YY49 and star GA0900:02190224 with event index number of 321687

Geocentric closest approach at 2019/01/28 05:08:29 UTC

J2000 position of star is 06:59:55.5 +01:25:26
Equinox of date position of star is 07:00:53.9 +01:23:48
Stellar brightness G=14.5, 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 148 seconds.
The 1-sigma cross-track error in the shadow position is 1468 km.
The sky-plane scale is 12919.8 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 05:08UT)
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         07:00:54.8 +01:23:46 14.5       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 18.2 km RECON observability=1.0 and success probability=26.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 05:10:39 -42.3 Dark Down 38.8 154.6 Up 04:57:51 - 05:23:27 850
Summerland 05:10:40 -42.1 Dark Down 38.7 154.2 Up 04:57:52 - 05:23:28 839
Penticton 05:10:39 -42.3 Dark Down 39.0 154.3 Up 04:57:51 - 05:23:27 817
Okanagan Falls 05:10:39 -42.4 Dark Down 39.2 154.2 Up 04:57:51 - 05:23:27 802
Oliver 05:10:39 -42.5 Dark Down 39.4 154.2 Up 04:57:51 - 05:23:27 789
Anarchist Mountain Observatory 05:10:39 -42.7 Dark Down 39.6 154.4 Up 04:57:51 - 05:23:27 779
Oroville 05:10:39 -42.7 Dark Down 39.6 154.2 Up 04:57:51 - 05:23:27 772
Tonasket 05:10:39 -42.8 Dark Down 39.8 154.2 Up 04:57:51 - 05:23:27 753
Okanogan 05:10:40 -42.8 Dark Down 40.1 153.9 Up 04:57:52 - 05:23:28 723
Brewster 05:10:41 -42.8 Dark Down 40.3 153.5 Up 04:57:53 - 05:23:29 697
Manson/Chelan 05:10:42 -42.6 Dark Down 40.3 153.0 Up 04:57:54 - 05:23:30 672
Entiat 05:10:42 -42.7 Dark Down 40.5 152.8 Up 04:57:54 - 05:23:30 653
Wenatchee 05:10:43 -42.7 Dark Down 40.7 152.6 Up 04:57:55 - 05:23:31 630
Ellensburg 05:10:43 -42.7 Dark Down 41.0 152.1 Up 04:57:55 - 05:23:31 591
Pasco 05:10:39 -43.9 Dark Down 42.1 153.6 Up 04:57:51 - 05:23:27 560
Yakima 05:10:43 -42.9 Dark Down 41.4 151.9 Up 04:57:55 - 05:23:31 557
PNWRO 05:10:38 -44.1 Dark Down 42.4 153.8 Up 04:57:50 - 05:23:26 544
Toppenish/White Swan 05:10:43 -43.1 Dark Down 41.6 152.1 Up 04:57:55 - 05:23:31 542
George/Umatilla 05:10:39 -43.9 Dark Down 42.3 153.2 Up 04:57:51 - 05:23:27 527
Goldendale 05:10:44 -43.0 Dark Down 42.0 151.3 Up 04:57:56 - 05:23:32 487
The Dalles 05:10:45 -42.8 Dark Down 42.0 150.7 Up 04:57:57 - 05:23:33 460
Maupin 05:10:45 -43.0 Dark Down 42.4 150.7 Up 04:57:57 - 05:23:33 427
Madras/Culver 05:10:45 -43.2 Dark Down 42.9 150.4 Up 04:57:57 - 05:23:33 379
Niwot 05:09:48 -55.6 Dark Down 51.0 171.2 Up 04:57:00 - 05:22:36 378
Redmond 05:10:46 -43.3 Dark Down 43.2 150.2 Up 04:57:58 - 05:23:34 347
Sisters 05:10:47 -43.0 Dark Down 43.0 149.7 Up 04:57:59 - 05:23:35 340
Bend 05:10:46 -43.2 Dark Down 43.3 149.9 Up 04:57:58 - 05:23:34 326
Oregon Observatory 05:10:47 -43.2 Dark Down 43.4 149.6 Up 04:57:59 - 05:23:35 308
La Pine/Gilchrist 05:10:47 -43.2 Dark Down 43.6 149.5 Up 04:57:59 - 05:23:35 288
North Lake 05:10:45 -43.8 Dark Down 44.2 150.0 Up 04:57:57 - 05:23:33 264
Paisley 05:10:43 -44.2 Dark Down 44.8 150.2 Up 04:57:55 - 05:23:31 224
Lakeview 05:10:43 -44.5 Dark Down 45.3 150.2 Up 04:57:55 - 05:23:31 184
Chiloquin 05:10:48 -43.3 Dark Down 44.4 148.5 Up 04:58:00 - 05:23:36 183
Klamath Falls 05:10:47 -43.4 Dark Down 44.7 148.4 Up 04:57:59 - 05:23:35 155
Tulelake 05:10:47 -43.7 Dark Down 45.1 148.6 Up 04:57:59 - 05:23:35 138
Cedarville 05:10:42 -44.8 Dark Down 45.9 150.1 Up 04:57:54 - 05:23:30 130
Fall River/Burney 05:10:47 -44.0 Dark Down 45.9 148.2 Up 04:57:59 - 05:23:35 59
Susanville 05:10:44 -44.7 Dark Down 46.7 148.9 Up 04:57:56 - 05:23:32 20
Gimple 05:10:44 -44.7 Dark Down 46.9 148.4 Up 04:57:56 - 05:23:32 -11
Greenville 05:10:45 -44.6 Dark Down 46.8 148.3 Up 04:57:57 - 05:23:33 -12
Quincy 05:10:45 -44.7 Dark Down 47.0 148.2 Up 04:57:57 - 05:23:33 -31
Portola 05:10:43 -45.0 Dark Down 47.3 148.8 Up 04:57:55 - 05:23:31 -31
Reno 05:10:41 -45.6 Dark Down 47.8 149.5 Up 04:57:53 - 05:23:29 -39
Carson City 05:10:40 -45.7 Dark Down 48.1 149.3 Up 04:57:52 - 05:23:28 -71
Yerington 05:10:38 -46.2 Dark Down 48.5 150.1 Up 04:57:50 - 05:23:26 -73
Gardnerville 05:10:40 -45.8 Dark Down 48.3 149.3 Up 04:57:52 - 05:23:28 -92
Hawthorne 05:10:36 -46.7 Dark Down 49.1 150.6 Up 04:57:48 - 05:23:24 -103
Tonopah 05:10:31 -47.9 Dark Down 50.0 152.3 Up 04:57:43 - 05:23:19 -110
Lee Vining 05:10:38 -46.5 Dark Down 49.4 149.6 Up 04:57:50 - 05:23:26 -166
Bishop 05:10:35 -47.2 Dark Down 50.2 150.2 Up 04:57:47 - 05:23:23 -203
Beatty 05:10:29 -48.6 Dark Down 51.2 152.3 Up 04:57:41 - 05:23:17 -204
Indian Springs 05:10:25 -49.5 Dark Down 51.9 153.7 Up 04:57:37 - 05:23:13 -207
Henderson 05:10:22 -50.1 Dark Down 52.6 154.4 Up 04:57:34 - 05:23:10 -238
Lone Pine 05:10:34 -47.6 Dark Down 51.0 150.2 Up 04:57:46 - 05:23:22 -265
Patrick 05:10:17 -51.2 Dark Down 53.6 155.8 Up 04:57:29 - 05:23:05 -266
DCO 05:10:14 -51.8 Dark Down 54.1 156.8 Up 04:57:26 - 05:23:02 -276
Searchlight/Boulder City 05:10:21 -50.3 Dark Down 53.2 154.2 Up 04:57:33 - 05:23:09 -289
Kingman/Dolan Springs 05:10:18 -51.1 Dark Down 53.7 155.4 Up 04:57:30 - 05:23:06 -292
Laughlin/Bullhead City 05:10:20 -50.7 Dark Down 53.6 154.6 Up 04:57:32 - 05:23:08 -308
Mohave Valley 05:10:20 -50.7 Dark Down 53.8 154.4 Up 04:57:32 - 05:23:08 -333
Lake Havasu City 05:10:18 -51.0 Dark Down 54.3 154.6 Up 04:57:30 - 05:23:06 -364
Parker 05:10:18 -51.1 Dark Down 54.6 154.4 Up 04:57:30 - 05:23:06 -396
CPSLO 05:10:43 -45.9 Dark Down 51.0 145.7 Up 04:57:55 - 05:23:31 -453
Blythe 05:10:19 -51.0 Dark Down 54.9 153.6 Up 04:57:31 - 05:23:07 -453
Idyllwild 05:10:27 -49.3 Dark Down 54.0 150.4 Up 04:57:39 - 05:23:15 -499
Wildwood 05:10:35 -47.7 Dark Down 52.9 147.8 Up 04:57:47 - 05:23:23 -514
Calipatria 05:10:22 -50.4 Dark Down 55.0 151.8 Up 04:57:34 - 05:23:10 -525
Yuma 05:10:18 -51.2 Dark Down 55.8 152.9 Up 04:57:30 - 05:23:06 -542

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 05:08UT)
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 14.5       116
Positions are for J2000

Event circumstances last updated at 2018/10/23 20:53:01 UT

Marc W. Buie, Southwest Research Institute

RECON