RECON: TNO occultation with 14UT114

Event between 14UT114 and star GA1260:01339325 with event index number of 236103

Geocentric closest approach at 2019/12/28 04:54:42 UTC

J2000 position of star is 04:39:30.6 +36:56:03
Equinox of date position of star is 04:40:44.7 +36:58:09
Stellar brightness G=16.8, use SENSEUP=128
Star is 133 degrees from the moon. Moon is 4% illuminated.
TNO apparent brightness V=20.9

[RECON map]
TNO is 15.9 AU from the Sun and 15.0 AU from the Earth.
The TNO is moving 19.4 km/sec on the sky relative to the star, or, 6.4 arcsec/hr.
The 1-sigma error in the time of the event is 188 seconds.
The 1-sigma cross-track error in the shadow position is 1419 km.
The sky-plane scale is 10893.2 km/arcsec.

The TNO has an absolute magnitude Hv=8.8
Diameter=104.7 km assuming a 5% albedo -- 5.4 sec chord
Diameter=42.8 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14UT114, (2019/12/28 04:55UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:04.2 +16:32:53  0.8 20.44 130
3Iot Aur       04:58:17.9 +33:11:45  2.7  5.20 136
PPM 069587     04:43:12.0 +38:19:00  6.2  1.42 133
PPM 069579     04:42:04.9 +36:53:14  8.5  0.26 133
PPM 069567     04:40:39.4 +36:53:02  9.7  0.10 133
14UT114        04:40:51.0 +36:58:20 16.8       133
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 4.8 sigma about the mid-time.
The median site spacing is 22.6 km RECON observability=1.0 and success probability=31.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 04:55:24 -45.6 Dark Down 71.3 125.0 Up 04:40:24 - 05:10:24 1927
Oroville 04:55:25 -45.9 Dark Down 71.7 123.8 Up 04:40:25 - 05:10:25 1868
Tonasket 04:55:26 -46.0 Dark Down 71.8 123.2 Up 04:40:26 - 05:10:26 1847
Okanogan 04:55:27 -46.0 Dark Down 71.9 122.1 Up 04:40:27 - 05:10:27 1822
Brewster 04:55:29 -46.0 Dark Down 71.9 121.0 Up 04:40:29 - 05:10:29 1805
Manson/Chelan 04:55:31 -45.8 Dark Down 71.8 119.8 Up 04:40:31 - 05:10:31 1799
Entiat 04:55:31 -45.8 Dark Down 71.9 119.1 Up 04:40:31 - 05:10:31 1782
Wenatchee 04:55:32 -45.8 Dark Down 72.0 118.3 Up 04:40:32 - 05:10:32 1763
Ellensburg 04:55:35 -45.8 Dark Down 72.0 116.8 Up 04:40:35 - 05:10:35 1733
Yakima 04:55:35 -45.9 Dark Down 72.2 115.6 Up 04:40:35 - 05:10:35 1697
Toppenish/White Swan 04:55:36 -46.1 Dark Down 72.4 115.3 Up 04:40:36 - 05:10:36 1671
Goldendale 04:55:39 -45.9 Dark Down 72.4 113.0 Up 04:40:39 - 05:10:39 1637
The Dalles 04:55:41 -45.7 Dark Down 72.2 111.8 Up 04:40:41 - 05:10:41 1631
Pasco 04:55:32 -46.9 Dark Down 73.2 117.1 Up 04:40:32 - 05:10:32 1610
Maupin 04:55:42 -45.9 Dark Down 72.5 110.8 Up 04:40:42 - 05:10:42 1588
George/Umatilla 04:55:34 -46.9 Dark Down 73.3 115.7 Up 04:40:34 - 05:10:34 1588
PNWRO 04:55:32 -47.1 Dark Down 73.5 116.8 Up 04:40:32 - 05:10:32 1579
Madras/Culver 04:55:44 -46.0 Dark Down 72.6 109.1 Up 04:40:44 - 05:10:44 1539
Sisters 04:55:46 -45.8 Dark Down 72.4 107.5 Up 04:40:46 - 05:10:46 1527
Redmond 04:55:45 -46.1 Dark Down 72.7 107.9 Up 04:40:45 - 05:10:45 1508
Bend 04:55:46 -46.0 Dark Down 72.7 107.1 Up 04:40:46 - 05:10:46 1495
Oregon Observatory 04:55:47 -46.0 Dark Down 72.6 106.4 Up 04:40:47 - 05:10:47 1484
La Pine/Gilchrist 04:55:48 -46.0 Dark Down 72.6 105.7 Up 04:40:48 - 05:10:48 1467
North Lake 04:55:47 -46.5 Dark Down 73.2 105.1 Up 04:40:47 - 05:10:47 1402
Chiloquin 04:55:53 -45.9 Dark Down 72.7 101.8 Up 04:40:53 - 05:10:53 1380
Klamath Falls 04:55:53 -46.0 Dark Down 72.8 100.8 Up 04:40:53 - 05:10:53 1345
Paisley 04:55:48 -46.8 Dark Down 73.6 103.8 Up 04:40:48 - 05:10:48 1336
Tulelake 04:55:53 -46.3 Dark Down 73.1 100.3 Up 04:40:53 - 05:10:53 1307
Lakeview 04:55:49 -47.1 Dark Down 73.8 102.3 Up 04:40:49 - 05:10:49 1281
Fall River/Burney 04:55:56 -46.5 Dark Down 73.3 97.4 Up 04:40:56 - 05:10:56 1219
Cedarville 04:55:50 -47.3 Dark Down 74.1 100.3 Up 04:40:50 - 05:10:50 1212
Susanville 04:55:55 -47.2 Dark Down 73.9 96.0 Up 04:40:55 - 05:10:55 1128
Greenville 04:55:57 -47.0 Dark Down 73.7 94.8 Up 04:40:57 - 05:10:57 1115
Gimple 04:55:56 -47.1 Dark Down 73.8 94.9 Up 04:40:56 - 05:10:56 1111
Quincy 04:55:57 -47.0 Dark Down 73.7 94.1 Up 04:40:57 - 05:10:57 1095
Portola 04:55:56 -47.4 Dark Down 74.1 94.1 Up 04:40:56 - 05:10:56 1063
Reno 04:55:55 -47.9 Dark Down 74.6 93.6 Up 04:40:55 - 05:10:55 1010
Carson City 04:55:56 -48.0 Dark Down 74.7 92.4 Up 04:40:56 - 05:10:56 975
Gardnerville 04:55:56 -48.1 Dark Down 74.7 91.5 Up 04:40:56 - 05:10:56 950
Yerington 04:55:54 -48.5 Dark Down 75.2 92.1 Up 04:40:54 - 05:10:54 929
Hawthorne 04:55:53 -49.0 Dark Down 75.6 90.7 Up 04:40:53 - 05:10:53 862
Lee Vining 04:55:57 -48.7 Dark Down 75.2 88.2 Up 04:40:57 - 05:10:57 829
Tonopah 04:55:49 -50.2 Dark Down 76.7 89.7 Up 04:40:49 - 05:10:49 757
Bishop 04:55:56 -49.4 Dark Down 75.7 86.3 Up 04:40:56 - 05:10:56 740
Lone Pine 04:55:56 -49.7 Dark Down 75.9 83.4 Up 04:40:56 - 05:10:56 653
CPSLO 04:56:10 -47.8 Dark Down 73.7 78.4 Up 04:41:10 - 05:11:10 644
Beatty 04:55:51 -50.7 Dark Down 77.0 84.9 Up 04:40:51 - 05:10:51 626
Indian Springs 04:55:48 -51.6 Dark Down 77.8 83.7 Up 04:40:48 - 05:10:48 548
Niwot 04:54:57 -58.5 Dark Down 85.0 127.9 Up 04:39:57 - 05:09:57 512
Henderson 04:55:46 -52.2 Dark Down 78.3 81.3 Up 04:40:46 - 05:10:46 467
Wildwood 04:56:06 -49.5 Dark Down 75.0 73.9 Up 04:41:06 - 05:11:06 434
Searchlight/Boulder City 04:55:47 -52.3 Dark Down 78.2 78.6 Up 04:40:47 - 05:10:47 408
Laughlin/Bullhead City 04:55:47 -52.7 Dark Down 78.5 77.1 Up 04:40:47 - 05:10:47 364
Patrick 04:55:43 -53.2 Dark Down 79.1 78.1 Up 04:40:43 - 05:10:43 359
Kingman/Dolan Springs 04:55:45 -53.1 Dark Down 78.9 77.0 Up 04:40:45 - 05:10:45 345
Mohave Valley 04:55:48 -52.7 Dark Down 78.4 75.8 Up 04:40:48 - 05:10:48 337
Idyllwild 04:55:59 -51.1 Dark Down 76.4 71.8 Up 04:40:59 - 05:10:59 315
DCO 04:55:41 -53.8 Dark Down 79.6 76.2 Up 04:40:41 - 05:10:41 300
Lake Havasu City 04:55:48 -52.9 Dark Down 78.5 73.8 Up 04:40:48 - 05:10:48 287
Parker 04:55:48 -53.0 Dark Down 78.4 72.1 Up 04:40:48 - 05:10:48 251
Blythe 04:55:51 -52.8 Dark Down 78.0 69.9 Up 04:40:51 - 05:10:51 212
Calipatria 04:55:56 -52.1 Dark Down 77.1 68.6 Up 04:40:56 - 05:10:56 204
Yuma 04:55:53 -52.9 Dark Down 77.6 66.0 Up 04:40:53 - 05:10:53 123

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 14UT114, (2019/12/28 04:55UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 20.44 130
3Iot Aur       04:56:59.6 +33:09:58  2.7  5.20 136
PPM 069587     04:41:50.6 +38:16:47  6.2  1.42 133
PPM 069579     04:40:44.6 +36:50:59  8.5  0.26 133
PPM 069567     04:39:19.1 +36:50:45  9.7  0.10 133
14UT114        04:39:30.6 +36:56:03 16.8       133
Positions are for J2000

Event circumstances last updated at 2018/06/05 18:22:29 UT

Marc W. Buie, Southwest Research Institute

RECON