RECON: TNO occultation with 14YX49

Event between 14YX49 and star GA1220:03509542 with event index number of 1669532

Geocentric closest approach at 2027/02/16 05:29:33 UTC

J2000 position of star is 10:52:53.8 +32:37:18
Equinox of date position of star is 10:53:59.9 +32:30:56
Stellar brightness G=14.3, use SENSEUP=64
Star is 69 degrees from the moon. Moon is 71% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 22.6 AU from the Sun and 21.7 AU from the Earth.
The TNO is moving 24.7 km/sec on the sky relative to the star, or, 5.7 arcsec/hr.
The 1-sigma error in the time of the event is 155 seconds.
The 1-sigma cross-track error in the shadow position is 2024 km.
The sky-plane scale is 15729.4 km/arcsec.

The TNO has an absolute magnitude Hv=8.8
Diameter=105.2 km assuming a 5% albedo -- 4.3 sec chord
Diameter=42.9 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14YX49, (2027/02/16 05:30UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:48.9 +11:50:01  1.3 23.04  68
68Del Leo      11:15:32.8 +20:22:30  2.6 12.99  78
46 UMa         10:57:14.2 +33:21:42  6.2  1.07  70
PPM 075506     10:52:04.1 +31:53:00  7.9  0.77  69
PPM 075521     10:53:34.3 +32:29:02  9.2  0.17  69
14YX49         10:54:23.9 +32:28:37 14.3        70
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 26.0 km RECON observability=1.0 and success probability=10.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 05:32:25 -40.2 Dark Up 47.3 93.5 Up 05:19:01 - 05:45:49 5013
Kelowna 05:32:26 -40.3 Dark Up 47.2 92.9 Up 05:19:02 - 05:45:50 4972
Summerland 05:32:26 -40.4 Dark Up 47.1 92.5 Up 05:19:02 - 05:45:50 4944
Penticton 05:32:27 -40.5 Dark Up 47.2 92.5 Up 05:19:03 - 05:45:51 4936
Oliver 05:32:26 -40.7 Dark Up 47.2 92.1 Up 05:19:02 - 05:45:50 4897
Anarchist Mountain Observatory 05:32:27 -40.9 Dark Up 47.4 92.1 Up 05:19:03 - 05:45:51 4877
Victoria 05:32:35 -38.9 Dark Up 44.7 88.5 Up 05:19:11 - 05:45:59 4855
Tonasket 05:32:26 -41.0 Dark Up 47.3 91.7 Up 05:19:02 - 05:45:50 4843
Okanogan 05:32:28 -41.1 Dark Up 47.2 91.2 Up 05:19:04 - 05:45:52 4807
Brewster 05:32:29 -41.2 Dark Up 47.1 90.8 Up 05:19:05 - 05:45:53 4779
Manson/Chelan 05:32:30 -41.1 Dark Up 46.9 90.3 Up 05:19:06 - 05:45:54 4758
Entiat 05:32:30 -41.2 Dark Up 46.8 90.0 Up 05:19:06 - 05:45:54 4734
Wenatchee 05:32:29 -41.2 Dark Up 46.8 89.6 Up 05:19:05 - 05:45:53 4707
Ellensburg 05:32:30 -41.3 Dark Up 46.6 89.1 Up 05:19:06 - 05:45:54 4663
Yakima 05:32:30 -41.5 Dark Up 46.6 88.6 Up 05:19:06 - 05:45:54 4618
Toppenish/White Swan 05:32:30 -41.7 Dark Up 46.7 88.5 Up 05:19:06 - 05:45:54 4593
Pasco 05:32:28 -42.5 Dark Up 47.6 89.3 Up 05:19:04 - 05:45:52 4571
PNWRO 05:32:27 -42.8 Dark Up 47.7 89.2 Up 05:19:03 - 05:45:51 4542
Goldendale 05:32:31 -41.8 Dark Up 46.4 87.6 Up 05:19:07 - 05:45:55 4535
The Dalles 05:32:33 -41.7 Dark Up 46.1 87.1 Up 05:19:09 - 05:45:57 4513
Maupin 05:32:33 -41.9 Dark Up 46.2 86.8 Up 05:19:09 - 05:45:57 4466
Sisters 05:32:34 -42.1 Dark Up 45.8 85.5 Up 05:19:10 - 05:45:58 4373
Redmond 05:32:33 -42.3 Dark Up 46.0 85.8 Up 05:19:09 - 05:45:57 4367
Bend 05:32:34 -42.3 Dark Up 45.9 85.5 Up 05:19:10 - 05:45:58 4344
Oregon Observatory 05:32:33 -42.3 Dark Up 45.8 85.2 Up 05:19:09 - 05:45:57 4326
La Pine/Gilchrist 05:32:34 -42.4 Dark Up 45.8 85.0 Up 05:19:10 - 05:45:58 4304
North Lake 05:32:33 -43.0 Dark Up 46.2 84.9 Up 05:19:09 - 05:45:57 4251
Paisley 05:32:32 -43.5 Dark Up 46.4 84.5 Up 05:19:08 - 05:45:56 4187
Klamath Falls 05:32:36 -42.9 Dark Up 45.4 83.3 Up 05:19:12 - 05:46:00 4146
Lakeview 05:32:32 -43.8 Dark Up 46.5 84.1 Up 05:19:08 - 05:45:56 4130
Cedarville 05:32:32 -44.3 Dark Up 46.5 83.5 Up 05:19:08 - 05:45:56 4056
Fall River/Burney 05:32:35 -43.7 Dark Up 45.6 82.3 Up 05:19:11 - 05:45:59 4012
Susanville 05:32:33 -44.4 Dark Up 46.0 82.1 Up 05:19:09 - 05:45:57 3936
Greenville 05:32:33 -44.4 Dark Up 45.8 81.7 Up 05:19:09 - 05:45:57 3908
Gimple 05:32:34 -44.4 Dark Up 45.8 81.7 Up 05:19:10 - 05:45:58 3907
Niwot 05:31:51 -54.2 Dark Up 57.7 90.7 Up 05:18:27 - 05:45:15 3893
Quincy 05:32:33 -44.4 Dark Up 45.7 81.5 Up 05:19:09 - 05:45:57 3886
SwRI 05:31:51 -54.2 Dark Up 57.6 90.5 Up 05:18:27 - 05:45:15 3881
Portola 05:32:33 -44.8 Dark Up 46.1 81.6 Up 05:19:09 - 05:45:57 3868
Reno 05:32:31 -45.4 Dark Up 46.5 81.6 Up 05:19:07 - 05:45:55 3834
Carson City 05:32:31 -45.6 Dark Up 46.5 81.3 Up 05:19:07 - 05:45:55 3794
Yerington 05:32:29 -46.1 Dark Up 46.9 81.4 Up 05:19:05 - 05:45:53 3768
Gardnerville 05:32:31 -45.7 Dark Up 46.5 81.1 Up 05:19:07 - 05:45:55 3766
Hawthorne 05:32:28 -46.7 Dark Up 47.3 81.2 Up 05:19:04 - 05:45:52 3713
Lee Vining 05:32:29 -46.6 Dark Up 46.8 80.3 Up 05:19:05 - 05:45:53 3654
Tonopah 05:32:25 -47.9 Dark Up 48.3 81.3 Up 05:19:01 - 05:45:49 3653
Bishop 05:32:27 -47.3 Dark Up 47.3 80.0 Up 05:19:03 - 05:45:51 3583
Beatty 05:32:23 -48.7 Dark Up 48.5 80.3 Up 05:18:59 - 05:45:47 3523
Indian Springs 05:32:20 -49.6 Dark Up 49.2 80.4 Up 05:18:56 - 05:45:44 3483
Henderson 05:32:18 -50.3 Dark Up 49.7 80.1 Up 05:18:54 - 05:45:42 3422
CPSLO 05:32:34 -46.5 Dark Up 45.1 77.0 Up 05:19:10 - 05:45:58 3374
Searchlight/Boulder City 05:32:18 -50.7 Dark Up 49.6 79.4 Up 05:18:54 - 05:45:42 3358
Patrick 05:32:14 -51.4 Dark Up 50.5 79.8 Up 05:18:50 - 05:45:38 3350
Kingman/Dolan Springs 05:32:15 -51.4 Dark Up 50.3 79.4 Up 05:18:51 - 05:45:39 3326
Laughlin/Bullhead City 05:32:16 -51.0 Dark Up 49.9 79.2 Up 05:18:52 - 05:45:40 3325
DCO 05:32:13 -52.1 Dark Up 51.0 79.7 Up 05:18:49 - 05:45:37 3316
Mohave Valley 05:32:16 -51.2 Dark Up 49.8 78.9 Up 05:18:52 - 05:45:40 3295
Lake Havasu City 05:32:16 -51.5 Dark Up 49.9 78.5 Up 05:18:52 - 05:45:40 3250
Wildwood 05:32:27 -48.5 Dark Up 46.4 76.5 Up 05:19:03 - 05:45:51 3225
Parker 05:32:15 -51.7 Dark Up 49.9 78.1 Up 05:18:51 - 05:45:39 3212
Idyllwild 05:32:22 -50.1 Dark Up 47.9 76.8 Up 05:18:58 - 05:45:46 3175
George/Scottsdale 05:32:08 -53.7 Dark Up 51.8 78.4 Up 05:18:44 - 05:45:32 3163
Blythe 05:32:16 -51.7 Dark Up 49.5 77.4 Up 05:18:52 - 05:45:40 3155
Calipatria 05:32:18 -51.2 Dark Up 48.7 76.5 Up 05:18:54 - 05:45:42 3104
Yuma 05:32:16 -52.1 Dark Up 49.3 76.3 Up 05:18:52 - 05:45:40 3054

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, (2027/02/16 05:30UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:22.0 +11:58:02  1.3 23.04  68
68Del Leo      11:14:06.7 +20:31:23  2.6 12.99  78
46 UMa         10:55:44.2 +33:30:25  6.2  1.07  70
PPM 075506     10:50:34.0 +32:01:39  7.9  0.77  69
PPM 075521     10:52:04.2 +32:37:43  9.2  0.17  69
14YX49         10:52:53.8 +32:37:18 14.3        69
Positions are for J2000

Event circumstances last updated at 2019/12/01 23:30:33 UT

Marc W. Buie, Southwest Research Institute

RECON