RECON: TNO occultation with 14QY441

Event between 14QY441 and star GA1120:00984447 with event index number of 173440

Geocentric closest approach at 2018/12/25 02:39:38 UTC

J2000 position of star is 05:08:34.4 +22:42:12
Equinox of date position of star is 05:09:41.1 +22:43:34
Stellar brightness G=16.4, use SENSEUP=128
Star is 48 degrees from the moon. Moon is 92% illuminated.
TNO apparent brightness V=21.4

[RECON map]
TNO is 37.7 AU from the Sun and 36.8 AU from the Earth.
The TNO is moving 24.6 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 164 seconds.
The 1-sigma cross-track error in the shadow position is 1700 km.
The sky-plane scale is 26657.1 km/arcsec.

The TNO has an absolute magnitude Hv=5.6
Diameter=457.1 km assuming a 5% albedo -- 18.6 sec chord
Diameter=186.6 km assuming a 30% albedo -- 7.6 sec chord
Dynamical classification is 4:3E
 
 
 
 
 
 

Star training set for 14QY441, (2018/12/25 02:40UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:00.7 +16:32:45  0.8  9.87  56
Alnath         05:27:29.6 +28:37:18  1.6  7.13  44
PPM 094053     05:06:46.6 +23:05:08  6.5  0.77  48
PPM 094066     05:07:49.5 +22:32:05  7.0  0.48  48
PPM 094092     05:09:25.3 +22:15:38  9.3  0.47  48
PPM 094104     05:10:11.8 +22:54:33 11.0  0.21  48
14QY441        05:09:43.1 +22:43:36 16.4        48
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 21.2 km RECON observability=1.0 and success probability=26.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 02:42:01 -24.6 Dark Up 34.7 95.0 Up 02:27:51 - 02:56:11 881
Oroville 02:42:03 -24.6 Dark Up 34.8 94.7 Up 02:27:53 - 02:56:13 831
Tonasket 02:42:04 -24.5 Dark Down 34.8 94.6 Up 02:27:54 - 02:56:14 812
Okanogan 02:42:05 -24.4 Dark Down 34.8 94.2 Up 02:27:55 - 02:56:15 790
Brewster 02:42:06 -24.2 Dark Down 34.7 93.9 Up 02:27:56 - 02:56:16 774
Manson/Chelan 02:42:07 -23.9 Dark Down 34.4 93.5 Up 02:27:57 - 02:56:17 767
Entiat 02:42:08 -23.9 Dark Down 34.4 93.3 Up 02:27:58 - 02:56:18 752
Wenatchee 02:42:09 -23.8 Dark Down 34.3 93.0 Up 02:27:59 - 02:56:19 734
Ellensburg 02:42:10 -23.5 Dark Down 34.2 92.6 Up 02:28:00 - 02:56:20 707
Yakima 02:42:12 -23.5 Dark Down 34.2 92.3 Up 02:28:02 - 02:56:22 675
Toppenish/White Swan 02:42:12 -23.6 Dark Down 34.3 92.3 Up 02:28:02 - 02:56:22 652
Goldendale 02:42:14 -23.2 Dark Down 34.1 91.6 Up 02:28:04 - 02:56:24 620
The Dalles 02:42:16 -22.9 Dark Down 33.8 91.2 Up 02:28:06 - 02:56:26 612
Pasco 02:42:11 -24.4 Dark Down 35.2 93.1 Up 02:28:01 - 02:56:21 607
George/Umatilla 02:42:12 -24.2 Dark Down 35.1 92.7 Up 02:28:02 - 02:56:22 585
PNWRO 02:42:11 -24.5 Dark Down 35.4 93.1 Up 02:28:01 - 02:56:21 580
Maupin 02:42:17 -22.9 Dark Down 33.9 91.0 Up 02:28:07 - 02:56:27 574
Madras/Culver 02:42:19 -22.8 Dark Down 33.9 90.6 Up 02:28:09 - 02:56:29 531
Sisters 02:42:20 -22.4 Dark Down 33.6 90.0 Up 02:28:10 - 02:56:30 516
Redmond 02:42:20 -22.6 Dark Down 33.9 90.3 Up 02:28:10 - 02:56:30 503
Bend 02:42:20 -22.5 Dark Down 33.8 90.1 Up 02:28:10 - 02:56:30 489
Oregon Observatory 02:42:21 -22.4 Dark Down 33.7 89.9 Up 02:28:11 - 02:56:31 478
La Pine/Gilchrist 02:42:22 -22.3 Dark Down 33.6 89.7 Up 02:28:12 - 02:56:32 463
North Lake 02:42:22 -22.6 Dark Down 34.1 89.8 Up 02:28:12 - 02:56:32 409
Chiloquin 02:42:26 -21.8 Dark Down 33.4 88.7 Up 02:28:16 - 02:56:36 380
Paisley 02:42:23 -22.8 Dark Down 34.3 89.7 Up 02:28:13 - 02:56:33 351
Klamath Falls 02:42:27 -21.8 Dark Down 33.4 88.5 Up 02:28:17 - 02:56:37 349
Tulelake 02:42:27 -22.0 Dark Down 33.6 88.6 Up 02:28:17 - 02:56:37 317
Lakeview 02:42:24 -22.8 Dark Down 34.5 89.5 Up 02:28:14 - 02:56:34 302
Cedarville 02:42:26 -22.8 Dark Down 34.6 89.1 Up 02:28:16 - 02:56:36 240
Fall River/Burney 02:42:29 -21.9 Dark Down 33.7 88.0 Up 02:28:19 - 02:56:39 236
Susanville 02:42:30 -22.3 Dark Down 34.2 88.1 Up 02:28:20 - 02:56:40 159
Greenville 02:42:31 -22.0 Dark Down 34.0 87.7 Up 02:28:21 - 02:56:41 144
Gimple 02:42:31 -22.1 Dark Down 34.1 87.7 Up 02:28:21 - 02:56:41 141
Quincy 02:42:32 -22.0 Dark Down 34.0 87.6 Up 02:28:22 - 02:56:42 126
Portola 02:42:31 -22.3 Dark Down 34.4 87.8 Up 02:28:21 - 02:56:41 100
Reno 02:42:31 -22.7 Dark Down 34.8 88.0 Up 02:28:21 - 02:56:41 56
Carson City 02:42:32 -22.7 Dark Down 34.9 87.8 Up 02:28:22 - 02:56:42 24
Gardnerville 02:42:33 -22.6 Dark Down 34.9 87.6 Up 02:28:23 - 02:56:43 2
Yerington 02:42:31 -23.1 Dark Down 35.3 88.0 Up 02:28:21 - 02:56:41 -15
Hawthorne 02:42:32 -23.4 Dark Down 35.7 88.0 Up 02:28:22 - 02:56:42 -72
Lee Vining 02:42:34 -22.9 Dark Down 35.3 87.3 Up 02:28:24 - 02:56:44 -107
Tonopah 02:42:31 -24.4 Dark Down 36.8 88.5 Up 02:28:21 - 02:56:41 -159
Bishop 02:42:34 -23.3 Dark Down 35.9 87.3 Up 02:28:24 - 02:56:44 -185
Lone Pine 02:42:36 -23.4 Dark Down 36.1 86.9 Up 02:28:26 - 02:56:46 -265
Beatty 02:42:33 -24.5 Dark Down 37.2 87.9 Up 02:28:23 - 02:56:43 -279
CPSLO 02:42:44 -21.1 Dark Down 33.9 84.6 Up 02:28:34 - 02:56:54 -299
Niwot 02:42:02 -33.8 Dark Up 45.9 98.3 Up 02:27:52 - 02:56:12 -325
Indian Springs 02:42:32 -25.3 Dark Down 38.0 88.3 Up 02:28:22 - 02:56:42 -344
Henderson 02:42:32 -25.7 Dark Down 38.6 88.3 Up 02:28:22 - 02:56:42 -416
Searchlight/Boulder City 02:42:33 -25.7 Dark Down 38.6 87.8 Up 02:28:23 - 02:56:43 -471
Wildwood 02:42:43 -22.5 Dark Down 35.5 84.9 Up 02:28:33 - 02:56:53 -480
Patrick 02:42:31 -26.5 Dark Down 39.4 88.4 Up 02:28:21 - 02:56:41 -510
Laughlin/Bullhead City 02:42:33 -25.9 Dark Down 38.9 87.8 Up 02:28:23 - 02:56:43 -510
Kingman/Dolan Springs 02:42:32 -26.3 Dark Down 39.3 88.1 Up 02:28:22 - 02:56:42 -525
Mohave Valley 02:42:34 -25.9 Dark Down 38.9 87.6 Up 02:28:24 - 02:56:44 -536
DCO 02:42:31 -27.0 Dark Down 40.0 88.5 Up 02:28:21 - 02:56:41 -561
Idyllwild 02:42:41 -23.9 Dark Down 37.0 85.6 Up 02:28:31 - 02:56:51 -576
Lake Havasu City 02:42:34 -26.0 Dark Down 39.0 87.4 Up 02:28:24 - 02:56:44 -582
Parker 02:42:35 -25.9 Dark Down 39.1 87.1 Up 02:28:25 - 02:56:45 -617
Blythe 02:42:37 -25.6 Dark Down 38.8 86.5 Up 02:28:27 - 02:56:47 -657
Calipatria 02:42:40 -24.7 Dark Down 38.0 85.7 Up 02:28:30 - 02:56:50 -673
Yuma 02:42:39 -25.4 Dark Down 38.7 85.8 Up 02:28:29 - 02:56:49 -744

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 14QY441, (2018/12/25 02:40UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  9.87  56
Alnath         05:26:17.5 +28:36:23  1.6  7.13  44
PPM 094053     05:05:37.7 +23:03:40  6.5  0.77  48
PPM 094066     05:06:40.9 +22:30:38  7.0  0.48  48
PPM 094092     05:08:16.8 +22:14:14  9.3  0.47  48
PPM 094104     05:09:02.9 +22:53:10 11.0  0.21  48
14QY441        05:08:34.4 +22:42:12 16.4        48
Positions are for J2000

Event circumstances last updated at 2018/06/05 16:40:58 UT

Marc W. Buie, Southwest Research Institute

RECON