RECON: TNO occultation with 14YX49

Event between 14YX49 and star GA1240:03273145 with event index number of 322024

Geocentric closest approach at 2019/03/13 11:46:23 UTC

J2000 position of star is 08:35:48.0 +34:21:31
Equinox of date position of star is 08:37:00.4 +34:17:29
Stellar brightness G=15.3, use SENSEUP=128
Star is 54 degrees from the moon. Moon is 40% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 20.1 AU from the Sun and 19.4 AU from the Earth.
The TNO is moving 14.3 km/sec on the sky relative to the star, or, 3.7 arcsec/hr.
The 1-sigma error in the time of the event is 60 seconds.
The 1-sigma cross-track error in the shadow position is 710 km.
The sky-plane scale is 14087.0 km/arcsec.

The TNO has an absolute magnitude Hv=8.8
Diameter=105.2 km assuming a 5% albedo -- 7.4 sec chord
Diameter=42.9 km assuming a 30% albedo -- 3.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14YX49, (2019/03/13 11:46UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:29.3 +27:58:42  1.1 12.50  43
33 Lyn         08:35:57.6 +36:21:09  5.9  2.07  54
PPM 073798     08:34:06.9 +34:19:02  8.5  0.60  54
PPM 073842     08:37:54.6 +34:39:21 10.0  0.41  55
14YX49         08:37:00.6 +34:17:28 15.3        55
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 18.8 km RECON observability=0.2 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Niwot 11:40:59 -18.8 Dark Down 7.3 309.5 Really Low 11:35:28 - 11:46:31 8127
SwRI 11:40:59 -18.9 Dark Down 7.3 309.4 Really Low 11:35:27 - 11:46:30 8117
Kelowna 11:41:32 -24.9 Dark Down 21.0 298.8 Low 11:36:01 - 11:47:04 8049
Penticton 11:41:30 -25.2 Dark Down 21.0 298.8 Low 11:35:59 - 11:47:02 8022
Summerland 11:41:31 -25.2 Dark Down 21.1 298.7 Low 11:35:59 - 11:47:02 8021
Okanagan Falls 11:41:29 -25.3 Dark Down 20.9 298.9 Low 11:35:57 - 11:47:00 8011
Oliver 11:41:28 -25.3 Dark Down 20.8 298.9 Low 11:35:57 - 11:47:00 8003
Anarchist Mountain Observatory 11:41:27 -25.3 Dark Down 20.6 299.1 Low 11:35:55 - 11:46:58 8002
Oroville 11:41:27 -25.4 Dark Down 20.6 299.1 Low 11:35:55 - 11:46:58 7995
Tonasket 11:41:25 -25.5 Dark Down 20.5 299.2 Low 11:35:54 - 11:46:57 7982
Okanogan 11:41:23 -25.7 Dark Down 20.4 299.2 Low 11:35:52 - 11:46:55 7957
Brewster 11:41:22 -26.0 Dark Down 20.4 299.1 Low 11:35:51 - 11:46:54 7934
Manson/Chelan 11:41:20 -26.3 Dark Down 20.5 299.0 Low 11:35:49 - 11:46:52 7907
Entiat 11:41:18 -26.4 Dark Down 20.5 299.0 Low 11:35:47 - 11:46:50 7891
Wenatchee 11:41:17 -26.6 Dark Down 20.4 299.0 Low 11:35:46 - 11:46:49 7872
Pasco 11:41:11 -26.4 Dark Down 19.1 300.1 Really Low 11:35:40 - 11:46:43 7857
PNWRO 11:41:11 -26.4 Dark Down 18.9 300.3 Really Low 11:35:39 - 11:46:42 7853
Ellensburg 11:41:15 -27.0 Dark Down 20.3 299.0 Low 11:35:43 - 11:46:46 7839
George/Umatilla 11:41:09 -26.7 Dark Down 19.1 300.1 Really Low 11:35:38 - 11:46:41 7828
Yakima 11:41:12 -27.2 Dark Down 20.2 299.1 Low 11:35:41 - 11:46:44 7815
Toppenish/White Swan 11:41:12 -27.2 Dark Down 20.0 299.3 Really Low 11:35:40 - 11:46:43 7809
Goldendale 11:41:09 -27.7 Dark Down 20.0 299.2 Really Low 11:35:37 - 11:46:40 7758
The Dalles 11:41:06 -28.0 Dark Down 20.1 299.1 Low 11:35:34 - 11:46:37 7728
Maupin 11:41:04 -28.1 Dark Down 19.8 299.2 Really Low 11:35:33 - 11:46:36 7708
Madras/Culver 11:41:01 -28.4 Dark Down 19.6 299.4 Really Low 11:35:29 - 11:46:32 7673
Redmond 11:40:59 -28.6 Dark Down 19.4 299.5 Really Low 11:35:27 - 11:46:30 7648
Sisters 11:40:59 -28.9 Dark Down 19.7 299.2 Really Low 11:35:27 - 11:46:30 7632
Bend 11:40:57 -28.8 Dark Down 19.4 299.4 Really Low 11:35:26 - 11:46:29 7629
Oregon Observatory 11:40:56 -29.0 Dark Down 19.4 299.4 Really Low 11:35:25 - 11:46:28 7612
North Lake 11:40:54 -28.9 Dark Down 18.8 299.9 Really Low 11:35:23 - 11:46:26 7596
La Pine/Gilchrist 11:40:56 -29.1 Dark Down 19.4 299.4 Really Low 11:35:24 - 11:46:27 7596
Paisley 11:40:50 -28.9 Dark Down 18.3 300.3 Really Low 11:35:19 - 11:46:22 7578
Lakeview 11:40:48 -29.0 Dark Down 17.9 300.5 Really Low 11:35:17 - 11:46:20 7555
Cedarville 11:40:45 -29.2 Dark Down 17.5 300.8 Really Low 11:35:13 - 11:46:16 7521
Chiloquin 11:40:50 -29.9 Dark Down 19.1 299.6 Really Low 11:35:18 - 11:46:21 7509
Klamath Falls 11:40:48 -30.0 Dark Down 18.8 299.7 Really Low 11:35:16 - 11:46:19 7491
Tulelake 11:40:46 -29.9 Dark Down 18.5 300.0 Really Low 11:35:15 - 11:46:18 7487
DCO 11:40:22 -26.3 Dark Down 9.4 305.7 Really Low 11:34:50 - 11:45:53 7439
Tonopah 11:40:30 -28.5 Dark Down 13.7 303.1 Really Low 11:34:58 - 11:46:01 7435
Fall River/Burney 11:40:41 -30.2 Dark Down 18.0 300.2 Really Low 11:35:10 - 11:46:13 7432
Susanville 11:40:39 -30.0 Dark Down 17.2 300.8 Really Low 11:35:08 - 11:46:11 7425
Patrick 11:40:22 -26.8 Dark Down 10.1 305.3 Really Low 11:34:50 - 11:45:53 7424
Indian Springs 11:40:25 -27.8 Dark Down 11.9 304.2 Really Low 11:34:53 - 11:45:56 7412
Henderson 11:40:23 -27.5 Dark Down 11.2 304.6 Really Low 11:34:52 - 11:45:55 7411
Reno 11:40:35 -29.8 Dark Down 16.2 301.5 Really Low 11:35:03 - 11:46:06 7408
Yerington 11:40:33 -29.5 Dark Down 15.5 301.9 Really Low 11:35:01 - 11:46:04 7403
Kingman/Dolan Springs 11:40:21 -27.0 Dark Down 10.1 305.2 Really Low 11:34:49 - 11:45:52 7400
Hawthorne 11:40:31 -29.3 Dark Down 14.9 302.3 Really Low 11:35:00 - 11:46:03 7397
Gimple 11:40:37 -30.3 Dark Down 17.2 300.8 Really Low 11:35:06 - 11:46:09 7397
Portola 11:40:36 -30.1 Dark Down 16.8 301.1 Really Low 11:35:04 - 11:46:07 7394
Greenville 11:40:38 -30.3 Dark Down 17.3 300.7 Really Low 11:35:06 - 11:46:09 7393
Carson City 11:40:33 -29.9 Dark Down 16.0 301.6 Really Low 11:35:02 - 11:46:05 7385
Beatty 11:40:25 -28.5 Dark Down 12.8 303.6 Really Low 11:34:54 - 11:45:57 7380
Quincy 11:40:36 -30.4 Dark Down 17.2 300.8 Really Low 11:35:05 - 11:46:08 7379
Searchlight/Boulder City 11:40:21 -27.6 Dark Down 10.8 304.7 Really Low 11:34:49 - 11:45:52 7375
Laughlin/Bullhead City 11:40:20 -27.4 Dark Down 10.4 304.9 Really Low 11:34:48 - 11:45:51 7372
Gardnerville 11:40:32 -30.0 Dark Down 15.9 301.6 Really Low 11:35:01 - 11:46:04 7371
Mohave Valley 11:40:19 -27.5 Dark Down 10.2 305.0 Really Low 11:34:47 - 11:45:50 7354
Lake Havasu City 11:40:17 -27.4 Dark Down 9.8 305.2 Really Low 11:34:46 - 11:45:49 7339
Lee Vining 11:40:28 -29.9 Dark Down 15.0 302.2 Really Low 11:34:56 - 11:45:59 7335
Bishop 11:40:25 -29.6 Dark Down 14.2 302.7 Really Low 11:34:54 - 11:45:57 7331
Parker 11:40:16 -27.5 Dark Down 9.6 305.2 Really Low 11:34:44 - 11:45:47 7317
Lone Pine 11:40:22 -29.6 Dark Down 13.5 303.0 Really Low 11:34:51 - 11:45:54 7295
Blythe 11:40:13 -27.9 Dark Down 9.5 305.1 Really Low 11:34:42 - 11:45:45 7265
Yuma 11:40:09 -28.2 Dark Down 9.0 305.2 Really Low 11:34:38 - 11:45:41 7198
Calipatria 11:40:09 -28.8 Dark Down 9.9 304.8 Really Low 11:34:37 - 11:45:40 7182
Idyllwild 11:40:11 -29.6 Dark Down 11.1 304.1 Really Low 11:34:40 - 11:45:43 7164
Wildwood 11:40:10 -30.9 Dark Down 12.6 303.2 Really Low 11:34:38 - 11:45:41 7092
CPSLO 11:40:15 -32.1 Dark Down 14.6 302.0 Really Low 11:34:43 - 11:45:46 7073

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 14YX49, (2019/03/13 11:46UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1 12.50  43
33 Lyn         08:34:43.8 +36:25:10  5.9  2.07  54
PPM 073798     08:32:54.1 +34:23:01  8.5  0.60  54
PPM 073842     08:36:41.8 +34:43:25 10.0  0.41  55
14YX49         08:35:48.0 +34:21:31 15.3        54
Positions are for J2000

Event circumstances last updated at 2019/02/22 20:22:31 UT

Marc W. Buie, Southwest Research Institute

RECON