RECON: TNO occultation with 14YY49

Event between 14YY49 and star GA0900:02284958 with event index number of 321674

Geocentric closest approach at 2019/01/06 05:34:07 UTC

J2000 position of star is 07:03:33.1 +01:13:35
Equinox of date position of star is 07:04:31.4 +01:11:51
Stellar brightness G=16.6, use SENSEUP=128
Star is 160 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 18.6 AU from the Sun and 17.7 AU from the Earth.
The TNO is moving 23.2 km/sec on the sky relative to the star, or, 6.5 arcsec/hr.
The 1-sigma error in the time of the event is 145 seconds.
The 1-sigma cross-track error in the shadow position is 904 km.
The sky-plane scale is 12839.7 km/arcsec.

The TNO has an absolute magnitude Hv=10.1
Diameter=58.3 km assuming a 5% albedo -- 2.5 sec chord
Diameter=23.8 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14YY49, (2019/01/06 05:34UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:12.1 +07:24:33  0.4 18.12 156
Alhena         06:38:48.6 +16:22:53  1.9 16.45 170
21 Mon         07:12:21.9 -00:20:06  5.5  2.49 158
PPM 151860     07:05:19.3 +01:27:32  6.7  0.33 160
PPM 151812     07:04:02.6 +01:21:53  9.4  0.21 160
14YY49         07:04:32.1 +01:11:49 16.6       160
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 20.2 km RECON observability=1.0 and success probability=31.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 05:36:16 -50.4 Dark Down 32.6 136.2 Up 05:23:43 - 05:48:48 1861
Summerland 05:36:17 -50.2 Dark Down 32.5 135.8 Up 05:23:44 - 05:48:49 1855
Penticton 05:36:17 -50.4 Dark Down 32.8 135.8 Up 05:23:44 - 05:48:49 1831
Okanagan Falls 05:36:17 -50.5 Dark Down 33.0 135.7 Up 05:23:45 - 05:48:50 1816
Oliver 05:36:17 -50.6 Dark Down 33.1 135.7 Up 05:23:45 - 05:48:50 1803
Anarchist Mountain Observatory 05:36:17 -50.8 Dark Down 33.3 135.8 Up 05:23:45 - 05:48:50 1790
Oroville 05:36:17 -50.8 Dark Down 33.3 135.7 Up 05:23:45 - 05:48:50 1784
Tonasket 05:36:18 -50.9 Dark Down 33.5 135.6 Up 05:23:45 - 05:48:50 1765
Okanogan 05:36:19 -51.0 Dark Down 33.7 135.3 Up 05:23:47 - 05:48:52 1737
Brewster 05:36:20 -51.0 Dark Down 33.8 134.9 Up 05:23:47 - 05:48:52 1714
Manson/Chelan 05:36:21 -50.9 Dark Down 33.7 134.4 Up 05:23:49 - 05:48:54 1695
Entiat 05:36:22 -50.9 Dark Down 33.9 134.3 Up 05:23:49 - 05:48:54 1676
Wenatchee 05:36:22 -51.0 Dark Down 34.0 134.0 Up 05:23:50 - 05:48:55 1655
Ellensburg 05:36:23 -51.0 Dark Down 34.2 133.6 Up 05:23:51 - 05:48:56 1619
Yakima 05:36:24 -51.2 Dark Down 34.4 133.4 Up 05:23:52 - 05:48:57 1586
Toppenish/White Swan 05:36:24 -51.4 Dark Down 34.7 133.5 Up 05:23:52 - 05:48:57 1569
Pasco 05:36:21 -52.2 Dark Down 35.4 134.7 Up 05:23:49 - 05:48:54 1567
PNWRO 05:36:21 -52.5 Dark Down 35.7 134.9 Up 05:23:48 - 05:48:53 1548
George/Umatilla 05:36:22 -52.3 Dark Down 35.5 134.3 Up 05:23:50 - 05:48:55 1538
Goldendale 05:36:26 -51.4 Dark Down 34.8 132.7 Up 05:23:54 - 05:48:59 1520
The Dalles 05:36:27 -51.2 Dark Down 34.8 132.2 Up 05:23:55 - 05:49:00 1498
Maupin 05:36:28 -51.5 Dark Down 35.1 132.1 Up 05:23:55 - 05:49:00 1463
Madras/Culver 05:36:29 -51.7 Dark Down 35.5 131.8 Up 05:23:56 - 05:49:01 1416
Redmond 05:36:30 -51.8 Dark Down 35.7 131.6 Up 05:23:57 - 05:49:02 1385
Sisters 05:36:31 -51.5 Dark Down 35.5 131.2 Up 05:23:58 - 05:49:03 1385
Bend 05:36:30 -51.7 Dark Down 35.8 131.3 Up 05:23:58 - 05:49:03 1366
Oregon Observatory 05:36:31 -51.7 Dark Down 35.8 131.1 Up 05:23:58 - 05:49:03 1350
La Pine/Gilchrist 05:36:31 -51.8 Dark Down 35.9 130.9 Up 05:23:59 - 05:49:04 1332
North Lake 05:36:30 -52.3 Dark Down 36.5 131.3 Up 05:23:58 - 05:49:03 1298
Paisley 05:36:30 -52.8 Dark Down 37.1 131.4 Up 05:23:58 - 05:49:03 1253
Chiloquin 05:36:34 -51.9 Dark Down 36.4 129.9 Up 05:24:01 - 05:49:06 1232
Lakeview 05:36:30 -53.1 Dark Down 37.5 131.3 Up 05:23:58 - 05:49:03 1209
Klamath Falls 05:36:34 -52.1 Dark Down 36.7 129.8 Up 05:24:02 - 05:49:07 1203
Tulelake 05:36:34 -52.4 Dark Down 37.1 130.0 Up 05:24:01 - 05:49:06 1181
Cedarville 05:36:31 -53.4 Dark Down 38.1 131.1 Up 05:23:58 - 05:49:03 1152
Niwot 05:35:46 -64.0 Dark Down 46.5 147.7 Up 05:23:14 - 05:48:19 1148
Fall River/Burney 05:36:35 -52.7 Dark Down 37.7 129.5 Up 05:24:03 - 05:49:08 1100
Susanville 05:36:34 -53.4 Dark Down 38.5 129.9 Up 05:24:01 - 05:49:06 1049
Gimple 05:36:35 -53.4 Dark Down 38.6 129.5 Up 05:24:02 - 05:49:07 1022
Greenville 05:36:35 -53.3 Dark Down 38.5 129.5 Up 05:24:03 - 05:49:08 1022
Quincy 05:36:35 -53.4 Dark Down 38.7 129.3 Up 05:24:03 - 05:49:08 1003
Portola 05:36:34 -53.8 Dark Down 39.0 129.7 Up 05:24:02 - 05:49:07 995
Reno 05:36:33 -54.3 Dark Down 39.6 130.3 Up 05:24:00 - 05:49:05 976
Carson City 05:36:33 -54.4 Dark Down 39.8 130.0 Up 05:24:01 - 05:49:06 943
Yerington 05:36:31 -55.0 Dark Down 40.3 130.6 Up 05:23:59 - 05:49:04 930
Gardnerville 05:36:33 -54.5 Dark Down 40.0 129.9 Up 05:24:01 - 05:49:06 921
Hawthorne 05:36:30 -55.5 Dark Down 40.9 130.8 Up 05:23:58 - 05:49:03 891
Tonopah 05:36:27 -56.7 Dark Down 42.1 132.0 Up 05:23:54 - 05:48:59 859
Lee Vining 05:36:33 -55.3 Dark Down 41.0 130.0 Up 05:24:00 - 05:49:05 835
Bishop 05:36:31 -56.0 Dark Down 41.8 130.3 Up 05:23:58 - 05:49:03 785
Beatty 05:36:27 -57.4 Dark Down 43.1 131.8 Up 05:23:54 - 05:48:59 755
Indian Springs 05:36:23 -58.3 Dark Down 44.0 132.7 Up 05:23:51 - 05:48:56 733
Lone Pine 05:36:31 -56.4 Dark Down 42.5 130.1 Up 05:23:58 - 05:49:03 716
Henderson 05:36:22 -59.0 Dark Down 44.7 133.1 Up 05:23:49 - 05:48:54 689
Patrick 05:36:19 -60.0 Dark Down 45.8 133.9 Up 05:23:46 - 05:48:51 639
Searchlight/Boulder City 05:36:22 -59.2 Dark Down 45.1 132.8 Up 05:23:50 - 05:48:55 635
Kingman/Dolan Springs 05:36:19 -59.9 Dark Down 45.8 133.5 Up 05:23:47 - 05:48:52 616
DCO 05:36:16 -60.6 Dark Down 46.4 134.5 Up 05:23:44 - 05:48:49 616
Laughlin/Bullhead City 05:36:21 -59.5 Dark Down 45.6 132.9 Up 05:23:49 - 05:48:54 610
Mohave Valley 05:36:21 -59.6 Dark Down 45.7 132.7 Up 05:23:49 - 05:48:54 584
CPSLO 05:36:41 -54.7 Dark Down 41.7 126.6 Up 05:24:08 - 05:49:13 573
Lake Havasu City 05:36:21 -59.9 Dark Down 46.2 132.7 Up 05:23:48 - 05:48:53 547
Parker 05:36:21 -60.0 Dark Down 46.4 132.5 Up 05:23:49 - 05:48:54 514
Wildwood 05:36:35 -56.6 Dark Down 43.8 127.8 Up 05:24:03 - 05:49:08 473
Blythe 05:36:23 -59.9 Dark Down 46.6 131.7 Up 05:23:50 - 05:48:55 461
Idyllwild 05:36:30 -58.2 Dark Down 45.2 129.5 Up 05:23:57 - 05:49:02 454
Calipatria 05:36:26 -59.3 Dark Down 46.3 130.3 Up 05:23:54 - 05:48:59 405
Yuma 05:36:23 -60.1 Dark Down 47.2 130.9 Up 05:23:51 - 05:48:56 371

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, (2019/01/06 05:34UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 18.12 156
Alhena         06:37:42.8 +16:23:57  1.9 16.45 170
21 Mon         07:11:23.6 -00:18:08  5.5  2.49 158
PPM 151860     07:04:20.2 +01:29:18  6.7  0.33 160
PPM 151812     07:03:03.5 +01:23:37  9.4  0.21 160
14YY49         07:03:33.1 +01:13:35 16.6       160
Positions are for J2000

Event circumstances last updated at 2018/10/23 20:49:41 UT

Marc W. Buie, Southwest Research Institute

RECON