RECON: TNO occultation with 14QY441

Event between 14QY441 and star UC4-562-013780 with event index number of 140197

Geocentric closest approach at 2017/12/03 06:50:02 UTC

J2000 position of star is 05:04:12.0 +22:19:01
Equinox of date position of star is 05:05:14.7 +22:20:24
Stellar brightness R=15.5, use SENSEUP=128
Star is 12 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=21.3

[RECON map]
TNO is 37.8 AU from the Sun and 36.8 AU from the Earth.
The TNO is moving 25.4 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 121 seconds.
The 1-sigma cross-track error in the shadow position is 1623 km.
The sky-plane scale is 26690.2 km/arcsec.

The TNO has an absolute magnitude Hv=5.6
Diameter=457.1 km assuming a 5% albedo -- 18.0 sec chord
Diameter=186.6 km assuming a 30% albedo -- 7.3 sec chord
Dynamical classification is 4:3E
 
 
 
 
 
 

Star training set for 14QY441, (2017/12/03 06:50UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:36:57.1 +16:32:38  0.8  8.84   4
Alnath         05:27:25.6 +28:37:15  1.6  8.02  19
102Iot Tau     05:04:10.1 +21:36:51  4.6  0.77  11
PPM 094066     05:07:45.7 +22:32:00  7.0  0.61  13
PPM 094019     05:05:01.8 +22:33:27  8.9  0.22  12
PPM 094047     05:06:07.5 +22:17:58 10.9  0.20  12
14QY441        05:05:16.7 +22:20:27 15.5        12
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 23.3 km RECON observability=1.0 and success probability=0.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 06:50:54 -60.9 Dark Up 58.8 141.3 Up 06:40:21 - 07:01:27 8152
Tonasket 06:50:54 -61.1 Dark Up 59.0 141.1 Up 06:40:21 - 07:01:27 8130
Okanogan 06:50:55 -61.4 Dark Up 59.2 140.5 Up 06:40:22 - 07:01:28 8100
Brewster 06:50:56 -61.6 Dark Up 59.3 139.9 Up 06:40:23 - 07:01:29 8076
Manson/Chelan 06:50:58 -61.6 Dark Up 59.3 139.1 Up 06:40:25 - 07:01:31 8062
Entiat 06:50:58 -61.8 Dark Up 59.5 138.7 Up 06:40:25 - 07:01:31 8041
Wenatchee 06:50:59 -62.0 Dark Up 59.6 138.3 Up 06:40:26 - 07:01:32 8018
Ellensburg 06:51:00 -62.3 Dark Up 59.8 137.5 Up 06:40:27 - 07:01:33 7982
Yakima 06:51:01 -62.6 Dark Up 60.1 137.0 Up 06:40:28 - 07:01:34 7942
Toppenish/White Swan 06:51:00 -62.8 Dark Up 60.4 137.0 Up 06:40:27 - 07:01:33 7919
Pasco 06:50:57 -63.4 Dark Up 61.0 138.9 Up 06:40:24 - 07:01:30 7888
Goldendale 06:51:02 -63.2 Dark Up 60.6 135.6 Up 06:40:29 - 07:01:35 7871
PNWRO 06:50:56 -63.7 Dark Up 61.3 139.0 Up 06:40:23 - 07:01:29 7861
George/Umatilla 06:50:58 -63.6 Dark Up 61.2 138.1 Up 06:40:25 - 07:01:31 7858
The Dalles 06:51:04 -63.2 Dark Up 60.5 134.8 Up 06:40:31 - 07:01:37 7855
Maupin 06:51:04 -63.6 Dark Up 60.9 134.4 Up 06:40:31 - 07:01:37 7812
Madras/Culver 06:51:05 -64.0 Dark Up 61.3 133.6 Up 06:40:32 - 07:01:38 7759
Sisters 06:51:06 -64.1 Dark Up 61.2 132.5 Up 06:40:33 - 07:01:39 7733
Redmond 06:51:06 -64.3 Dark Up 61.5 133.1 Up 06:40:33 - 07:01:39 7724
Bend 06:51:06 -64.4 Dark Up 61.5 132.6 Up 06:40:33 - 07:01:39 7706
Oregon Observatory 06:51:07 -64.5 Dark Up 61.6 132.1 Up 06:40:34 - 07:01:40 7691
La Pine/Gilchrist 06:51:07 -64.6 Dark Up 61.7 131.8 Up 06:40:34 - 07:01:40 7671
North Lake 06:51:06 -65.2 Dark Up 62.3 132.1 Up 06:40:33 - 07:01:39 7618
Chiloquin 06:51:10 -65.4 Dark Up 62.2 129.6 Up 06:40:37 - 07:01:43 7566
Paisley 06:51:06 -65.8 Dark Up 62.9 131.9 Up 06:40:33 - 07:01:39 7557
Klamath Falls 06:51:10 -65.7 Dark Up 62.5 129.2 Up 06:40:37 - 07:01:43 7530
Lakeview 06:51:06 -66.3 Dark Up 63.3 131.5 Up 06:40:33 - 07:01:39 7503
Tulelake 06:51:09 -66.0 Dark Up 62.8 129.3 Up 06:40:36 - 07:01:42 7498
Cedarville 06:51:07 -66.9 Dark Up 63.9 130.8 Up 06:40:34 - 07:01:40 7434
Fall River/Burney 06:51:11 -66.7 Dark Up 63.5 128.1 Up 06:40:38 - 07:01:44 7405
Susanville 06:51:09 -67.6 Dark Up 64.3 128.2 Up 06:40:36 - 07:01:42 7329
Greenville 06:51:10 -67.7 Dark Up 64.3 127.3 Up 06:40:37 - 07:01:43 7305
Gimple 06:51:10 -67.7 Dark Up 64.3 127.4 Up 06:40:37 - 07:01:43 7304
Quincy 06:51:11 -67.8 Dark Up 64.4 127.0 Up 06:40:38 - 07:01:44 7285
Portola 06:51:10 -68.1 Dark Up 64.8 127.5 Up 06:40:37 - 07:01:43 7264
Reno 06:51:08 -68.7 Dark Up 65.3 128.1 Up 06:40:35 - 07:01:41 7226
Carson City 06:51:08 -69.0 Dark Up 65.6 127.6 Up 06:40:35 - 07:01:41 7189
Gardnerville 06:51:08 -69.2 Dark Up 65.7 127.2 Up 06:40:35 - 07:01:41 7163
Yerington 06:51:06 -69.4 Dark Up 66.1 128.3 Up 06:40:33 - 07:01:39 7158
Hawthorne 06:51:05 -70.0 Dark Up 66.7 128.4 Up 06:40:32 - 07:01:38 7102
Niwot 06:50:20 -72.0 Dark Up 71.4 161.3 Up 06:39:47 - 07:00:53 7100
Lee Vining 06:51:08 -70.2 Dark Up 66.7 126.5 Up 06:40:35 - 07:01:41 7051
Tonopah 06:51:01 -71.1 Dark Up 67.8 130.0 Up 06:40:28 - 07:01:34 7031
Bishop 06:51:06 -71.0 Dark Up 67.5 126.6 Up 06:40:33 - 07:01:39 6977
Beatty 06:51:00 -72.2 Dark Up 68.8 128.6 Up 06:40:27 - 07:01:33 6903
Lone Pine 06:51:06 -71.8 Dark Up 68.2 125.7 Up 06:40:33 - 07:01:39 6892
Indian Springs 06:50:57 -73.0 Dark Up 69.7 130.0 Up 06:40:24 - 07:01:30 6852
CPSLO 06:51:16 -71.2 Dark Up 67.1 118.8 Up 06:40:43 - 07:01:49 6800
Henderson 06:50:56 -73.7 Dark Up 70.5 130.3 Up 06:40:23 - 07:01:29 6785
Searchlight/Boulder City 06:50:56 -74.2 Dark Up 70.9 129.1 Up 06:40:23 - 07:01:29 6724
Patrick 06:50:52 -74.7 Dark Up 71.6 131.2 Up 06:40:19 - 07:01:25 6703
Laughlin/Bullhead City 06:50:55 -74.6 Dark Up 71.3 129.2 Up 06:40:22 - 07:01:28 6687
Kingman/Dolan Springs 06:50:53 -74.9 Dark Up 71.6 130.3 Up 06:40:20 - 07:01:26 6682
DCO 06:50:50 -75.3 Dark Up 72.2 132.1 Up 06:40:17 - 07:01:23 6661
Mohave Valley 06:50:55 -74.9 Dark Up 71.5 128.6 Up 06:40:22 - 07:01:28 6658
Wildwood 06:51:10 -73.3 Dark Up 69.2 119.3 Up 06:40:37 - 07:01:43 6637
Lake Havasu City 06:50:55 -75.3 Dark Up 71.9 128.1 Up 06:40:22 - 07:01:28 6612
Parker 06:50:55 -75.6 Dark Up 72.1 127.4 Up 06:40:22 - 07:01:28 6574
Idyllwild 06:51:04 -74.7 Dark Up 70.7 121.7 Up 06:40:31 - 07:01:37 6568
Blythe 06:50:57 -75.9 Dark Up 72.2 125.4 Up 06:40:24 - 07:01:30 6522
Calipatria 06:51:00 -75.8 Dark Up 71.9 122.3 Up 06:40:27 - 07:01:33 6484
Yuma 06:50:57 -76.6 Dark Up 72.7 122.9 Up 06:40:24 - 07:01:30 6424

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, (2017/12/03 06:50UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  8.84   4
Alnath         05:26:17.5 +28:36:24  1.6  8.02  19
102Iot Tau     05:03:05.8 +21:35:23  4.6  0.77  11
PPM 094066     05:06:40.9 +22:30:38  7.0  0.61  13
PPM 094019     05:03:57.1 +22:32:01  8.9  0.22  12
PPM 094047     05:05:02.9 +22:16:33 10.9  0.20  12
14QY441        05:04:12.0 +22:19:01 15.5        12
Positions are for J2000

Event circumstances last updated at 2017/05/17 17:56:47 UT

Marc W. Buie, Southwest Research Institute

RECON