RECON: TNO occultation with 14YY49

Event between 14YY49 and star UC4-458-039058 with event index number of 322012

Geocentric closest approach at 2020/10/09 12:11:32 UTC

J2000 position of star is 07:44:45.1 +01:30:42
Equinox of date position of star is 07:45:44.3 +01:27:53
Stellar brightness R=15.9, use SENSEUP=128
Star is 27 degrees from the moon. Moon is 55% illuminated.
TNO apparent brightness V=23.5

[RECON map]
TNO is 20.1 AU from the Sun and 20.3 AU from the Earth.
The TNO is moving 14.8 km/sec on the sky relative to the star, or, 3.6 arcsec/hr.
The 1-sigma error in the time of the event is 69 seconds.
The 1-sigma cross-track error in the shadow position is 1023 km.
The sky-plane scale is 14715.0 km/arcsec.

The TNO has an absolute magnitude Hv=10.2
Diameter=55.2 km assuming a 5% albedo -- 3.7 sec chord
Diameter=22.5 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14YY49, (2020/10/09 12:12UT)
Object            RA         Dec     mag  sep  mel
Sirius         06:46:03.8 -16:44:43 -1.5 23.43  41
Alhena         06:38:54.7 +16:22:47  1.9 22.23   8
13Zet CMi      07:52:46.6 +01:42:45  5.1  1.75  28
PPM 153176     07:43:54.8 +01:33:33  7.2  0.49  27
PPM 153217     07:45:07.9 +01:16:16  9.5  0.26  27
14YY49         07:45:49.6 +01:27:37 15.9        27
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 16.5 km RECON observability=1.0 and success probability=32.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 12:05:45 -20.8 Dark Up 33.0 136.1 Up 11:59:30 - 12:11:59 -11
Summerland 12:05:44 -21.0 Dark Up 32.8 135.7 Up 11:59:29 - 12:11:58 -30
Penticton 12:05:45 -21.0 Dark Up 33.1 135.8 Up 11:59:30 - 12:11:59 -49
Okanagan Falls 12:05:45 -21.0 Dark Up 33.3 135.7 Up 11:59:31 - 12:12:00 -67
Niwot 12:06:54 -12.0 AT Up 46.9 148.3 Up 12:00:39 - 12:13:08 -73
Oliver 12:05:45 -21.1 Dark Up 33.4 135.6 Up 11:59:31 - 12:12:00 -80
Anarchist Mountain Observatory 12:05:46 -21.0 Dark Up 33.6 135.8 Up 11:59:32 - 12:12:01 -86
Oroville 12:05:46 -21.1 Dark Up 33.6 135.6 Up 11:59:32 - 12:12:01 -96
Tonasket 12:05:46 -21.1 Dark Up 33.8 135.5 Up 11:59:32 - 12:12:01 -116
Okanogan 12:05:47 -21.3 Dark Up 34.0 135.2 Up 11:59:32 - 12:12:01 -151
Brewster 12:05:46 -21.5 Dark Up 34.1 134.9 Up 11:59:32 - 12:12:01 -184
Manson/Chelan 12:05:46 -21.8 Dark Up 34.0 134.4 Up 11:59:31 - 12:12:00 -219
Entiat 12:05:46 -21.9 Dark Up 34.2 134.2 Up 11:59:32 - 12:12:01 -241
Wenatchee 12:05:46 -22.0 Dark Up 34.3 134.0 Up 11:59:32 - 12:12:01 -268
Pasco 12:05:52 -21.5 Dark Up 35.7 134.7 Up 11:59:37 - 12:12:06 -314
Ellensburg 12:05:46 -22.3 Dark Up 34.5 133.5 Up 11:59:32 - 12:12:01 -314
PNWRO 12:05:53 -21.4 Dark Up 36.0 134.8 Up 11:59:38 - 12:12:07 -324
Yakima 12:05:47 -22.4 Dark Up 34.7 133.3 Up 11:59:33 - 12:12:02 -350
George/Umatilla 12:05:52 -21.7 Dark Up 35.8 134.3 Up 11:59:37 - 12:12:06 -353
Toppenish/White Swan 12:05:48 -22.3 Dark Up 35.0 133.4 Up 11:59:33 - 12:12:02 -362
Goldendale 12:05:48 -22.8 Dark Up 35.1 132.7 Up 11:59:33 - 12:12:02 -430
The Dalles 12:05:47 -23.1 Dark Up 35.1 132.2 Up 11:59:33 - 12:12:02 -467
Maupin 12:05:48 -23.1 Dark Up 35.4 132.1 Up 11:59:34 - 12:12:03 -499
Madras/Culver 12:05:50 -23.3 Dark Up 35.8 131.7 Up 11:59:35 - 12:12:04 -549
Redmond 12:05:50 -23.4 Dark Up 36.0 131.5 Up 11:59:35 - 12:12:04 -584
Sisters 12:05:49 -23.7 Dark Up 35.7 131.1 Up 11:59:34 - 12:12:03 -600
Bend 12:05:50 -23.5 Dark Up 36.0 131.2 Up 11:59:35 - 12:12:04 -609
Oregon Observatory 12:05:50 -23.7 Dark Up 36.1 131.0 Up 11:59:35 - 12:12:04 -631
La Pine/Gilchrist 12:05:50 -23.8 Dark Up 36.2 130.8 Up 11:59:36 - 12:12:05 -652
North Lake 12:05:53 -23.4 Dark Up 36.8 131.2 Up 11:59:38 - 12:12:07 -662
Paisley 12:05:55 -23.3 Dark Up 37.4 131.3 Up 11:59:40 - 12:12:09 -694
Lakeview 12:05:57 -23.3 Dark Up 37.8 131.2 Up 11:59:42 - 12:12:11 -729
Chiloquin 12:05:51 -24.3 Dark Up 36.7 129.8 Up 11:59:37 - 12:12:06 -769
Cedarville 12:05:59 -23.3 Dark Up 38.4 131.0 Up 11:59:44 - 12:12:13 -779
Klamath Falls 12:05:52 -24.3 Dark Up 37.0 129.7 Up 11:59:38 - 12:12:07 -795
Tulelake 12:05:54 -24.1 Dark Up 37.3 129.9 Up 11:59:39 - 12:12:08 -805
Fall River/Burney 12:05:56 -24.3 Dark Up 38.0 129.4 Up 11:59:42 - 12:12:11 -883
Susanville 12:06:00 -23.9 Dark Up 38.8 129.8 Up 11:59:46 - 12:12:15 -902
Tonopah 12:06:18 -21.6 Dark Up 42.4 132.1 Up 12:00:03 - 12:12:32 -929
Reno 12:06:05 -23.4 Dark Up 39.9 130.2 Up 11:59:50 - 12:12:19 -937
Gimple 12:06:00 -24.1 Dark Up 38.9 129.4 Up 11:59:46 - 12:12:15 -937
Greenville 12:06:00 -24.1 Dark Up 38.8 129.3 Up 11:59:45 - 12:12:14 -942
Portola 12:06:02 -23.8 Dark Up 39.3 129.7 Up 11:59:48 - 12:12:17 -947
DCO 12:06:41 -18.7 Dark Up 46.9 134.7 Up 12:00:26 - 12:12:55 -951
Yerington 12:06:08 -23.0 Dark Up 40.6 130.5 Up 11:59:54 - 12:12:23 -952
Quincy 12:06:00 -24.2 Dark Up 38.9 129.2 Up 11:59:46 - 12:12:15 -959
Hawthorne 12:06:11 -22.7 Dark Up 41.3 130.8 Up 11:59:57 - 12:12:26 -965
Patrick 12:06:37 -19.2 Dark Up 46.2 134.1 Up 12:00:23 - 12:12:52 -967
Carson City 12:06:06 -23.5 Dark Up 40.1 130.0 Up 11:59:52 - 12:12:21 -968
Indian Springs 12:06:27 -20.6 Dark Up 44.3 132.8 Up 12:00:13 - 12:12:42 -972
Henderson 12:06:32 -20.1 Dark Up 45.1 133.2 Up 12:00:17 - 12:12:46 -978
Gardnerville 12:06:07 -23.5 Dark Up 40.3 129.9 Up 11:59:52 - 12:12:21 -987
Kingman/Dolan Springs 12:06:37 -19.4 Dark Up 46.3 133.7 Up 12:00:23 - 12:12:52 -997
Beatty 12:06:23 -21.4 Dark Up 43.5 131.8 Up 12:00:09 - 12:12:38 -1005
Searchlight/Boulder City 12:06:34 -20.1 Dark Up 45.6 132.9 Up 12:00:19 - 12:12:48 -1024
Laughlin/Bullhead City 12:06:35 -19.8 Dark Up 46.0 133.0 Up 12:00:21 - 12:12:50 -1029
Lee Vining 12:06:11 -23.1 Dark Up 41.3 129.9 Up 11:59:57 - 12:12:26 -1041
Mohave Valley 12:06:37 -19.9 Dark Up 46.2 132.8 Up 12:00:22 - 12:12:51 -1052
Bishop 12:06:15 -22.7 Dark Up 42.2 130.3 Up 12:00:01 - 12:12:30 -1054
Lake Havasu City 12:06:39 -19.7 Dark Up 46.6 132.8 Up 12:00:25 - 12:12:54 -1071
Parker 12:06:40 -19.7 Dark Up 46.9 132.6 Up 12:00:25 - 12:12:54 -1099
Lone Pine 12:06:19 -22.5 Dark Up 42.9 130.1 Up 12:00:04 - 12:12:33 -1103
Blythe 12:06:41 -20.0 Dark Up 47.0 131.8 Up 12:00:26 - 12:12:55 -1162
Yuma 12:06:45 -20.1 Dark Up 47.6 131.1 Up 12:00:30 - 12:12:59 -1243
Calipatria 12:06:39 -20.8 Dark Up 46.8 130.4 Up 12:00:24 - 12:12:53 -1259
Idyllwild 12:06:33 -21.8 Dark Up 45.6 129.5 Up 12:00:19 - 12:12:48 -1276
Wildwood 12:06:25 -23.3 Dark Up 44.1 127.7 Up 12:00:11 - 12:12:40 -1353
CPSLO 12:06:14 -24.8 Dark Up 42.0 126.5 Up 11:59:59 - 12:12:28 -1359

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, (2020/10/09 12:12UT)
Object            RA         Dec     mag  sep  mel
Sirius         06:45:08.1 -16:43:21 -1.5 23.43  41
Alhena         06:37:42.8 +16:23:57  1.9 22.23   8
13Zet CMi      07:51:42.0 +01:46:01  5.1  1.75  28
PPM 153176     07:42:50.2 +01:36:34  7.2  0.49  27
PPM 153217     07:44:03.5 +01:19:20  9.5  0.26  27
14YY49         07:44:45.1 +01:30:42 15.9        27
Positions are for J2000

Event circumstances last updated at 2019/01/18 19:57:22 UT

Marc W. Buie, Southwest Research Institute

RECON