RECON: TNO occultation with 14YY49

Event between 14YY49 and star GA0900:03303122 with event index number of 2656886

Geocentric closest approach at 2024/01/28 02:48:11 UTC

J2000 position of star is 08:18:28.6 +00:17:19
Equinox of date position of star is 08:19:42.4 +00:12:45
Stellar brightness G=16.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 35 degrees from the moon. Moon is 95% illuminated.
Apparent brightness V=23.8

[RECON map]
Object is 22.9 AU from the Sun and 22.0 AU from the Earth.
Apparent velocity is 24.6 km/sec on the sky relative to the star, or, 5.5 arcsec/hr.
The 1-sigma error in the time of the event is 107 seconds.
The 1-sigma cross-track error in the shadow position is 1200 km.
The sky-plane scale is 15950.1 km/arcsec.

The object has an absolute magnitude Hv=10.2
Diameter=55.2 km assuming a 5% albedo -- 2.3 sec chord
Diameter=22.5 km assuming a 30% albedo -- 0.9 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14YY49, (2024/01/28 02:48UT)
Object            RA         Dec     mag  sep  mel
Sirius         06:46:12.6 -16:45:00 -1.5 28.61  63
Alphard        09:28:46.2 -08:45:51  2.0 19.40  27
PPM 154212     08:18:34.4 +04:08:36  6.5  3.94  34
PPM 154219     08:18:53.1 +00:24:12  7.5  0.28  35
PPM 154254     08:20:01.6 +00:12:24  9.1  0.08  35
14YY49         08:19:42.7 +00:12:44 16.3        34
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 0.0 km RECON observability=0.1 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)
Sleaford 02:51:22 -28.9 Dark Up 17.7 113.6 Really Low 02:41:57 - 03:00:47 1360
Kamloops 02:51:40 -20.0 Dark Down 9.6 101.4 Really Low 02:42:15 - 03:01:05 1133
Kelowna 02:51:41 -20.5 Dark Down 10.3 102.0 Really Low 02:42:16 - 03:01:06 1063
Peachland 02:51:42 -20.3 Dark Down 10.1 101.7 Really Low 02:42:17 - 03:01:07 1052
Summerland 02:51:42 -20.3 Dark Down 10.2 101.8 Really Low 02:42:17 - 03:01:07 1038
Penticton 02:51:42 -20.4 Dark Down 10.3 101.8 Really Low 02:42:17 - 03:01:07 1033
Oliver 02:51:43 -20.4 Dark Down 10.4 101.8 Really Low 02:42:18 - 03:01:08 1000
Anarchist Mountain Observatory 02:51:43 -20.5 Dark Down 10.5 101.9 Really Low 02:42:18 - 03:01:08 986
Okanogan 02:51:45 -20.3 Dark Down 10.5 101.6 Really Low 02:42:20 - 03:01:10 924
Victoria 02:51:47 -17.8 AT Down 8.0 98.7 Really Low 02:42:22 - 03:01:12 921
Brewster 02:51:46 -20.1 Dark Down 10.4 101.4 Really Low 02:42:21 - 03:01:11 898
Manson/Chelan 02:51:46 -19.9 Dark Down 10.2 101.1 Really Low 02:42:21 - 03:01:11 876
Wenatchee 02:51:47 -19.7 Dark Down 10.2 100.9 Really Low 02:42:22 - 03:01:12 831
Ellensburg 02:51:48 -19.5 Dark Down 10.2 100.6 Really Low 02:42:23 - 03:01:13 790
Yakima 02:51:50 -19.5 Dark Down 10.2 100.6 Really Low 02:42:25 - 03:01:15 752
Toppenish/White Swan 02:51:50 -19.6 Dark Down 10.4 100.6 Really Low 02:42:25 - 03:01:15 732
PNWRO 02:51:49 -20.5 Dark Down 11.5 101.7 Really Low 02:42:24 - 03:01:14 705
The Dalles 02:51:52 -18.9 Dark Down 10.0 99.9 Really Low 02:42:27 - 03:01:17 653
Maupin 02:51:53 -18.9 Dark Down 10.1 99.9 Really Low 02:42:28 - 03:01:18 613
Sisters 02:51:55 -18.5 Dark Down 9.9 99.4 Really Low 02:42:30 - 03:01:20 525
Bend 02:51:55 -18.6 Dark Down 10.2 99.6 Really Low 02:42:30 - 03:01:20 503
Oregon Observatory 02:51:56 -18.5 Dark Down 10.1 99.5 Really Low 02:42:31 - 03:01:21 486
Chiloquin 02:51:59 -18.0 Dark Down 10.0 98.9 Really Low 02:42:34 - 03:01:24 354
Klamath Falls 02:51:59 -18.0 Dark Down 10.1 98.9 Really Low 02:42:34 - 03:01:24 320
Dunrhomin 02:51:43 -30.3 Dark Up 22.7 110.3 Low 02:42:18 - 03:01:08 263
Cedarville 02:51:59 -19.1 Dark Down 11.4 99.9 Really Low 02:42:34 - 03:01:24 260
Nikitin 02:51:43 -30.3 Dark Up 22.7 110.2 Low 02:42:18 - 03:01:08 244
CU-SBO 02:51:43 -30.2 Dark Up 22.7 110.1 Low 02:42:18 - 03:01:08 237
Fall River/Burney 02:52:01 -18.2 Dark Down 10.6 99.0 Really Low 02:42:36 - 03:01:26 205
Gimple 02:52:02 -18.4 Dark Down 11.2 99.2 Really Low 02:42:37 - 03:01:27 116
Greenville 02:52:02 -18.4 Dark Down 11.1 99.1 Really Low 02:42:37 - 03:01:27 116
Quincy 02:52:03 -18.3 Dark Down 11.1 99.1 Really Low 02:42:38 - 03:01:28 95
Portola 02:52:03 -18.7 Dark Down 11.5 99.4 Really Low 02:42:38 - 03:01:28 85
Reno 02:52:02 -19.1 Dark Down 12.0 99.8 Really Low 02:42:37 - 03:01:27 62
Carson City 02:52:03 -19.1 Dark Down 12.1 99.7 Really Low 02:42:38 - 03:01:28 26
Yerington 02:52:03 -19.6 Dark Down 12.6 100.1 Really Low 02:42:38 - 03:01:28 10
Gardnerville 02:52:03 -19.1 Dark Down 12.2 99.7 Really Low 02:42:38 - 03:01:28 1
Hawthorne 02:52:03 -19.9 Dark Down 13.1 100.3 Really Low 02:42:38 - 03:01:28 -34
Lee Vining 02:52:04 -19.4 Dark Down 12.9 99.9 Really Low 02:42:39 - 03:01:29 -95
Bishop 02:52:05 -19.9 Dark Down 13.5 100.2 Really Low 02:42:40 - 03:01:30 -152
Beatty 02:52:04 -21.1 Dark Down 14.9 101.1 Really Low 02:42:39 - 03:01:29 -188
Patrick 02:52:02 -23.3 Dark Down 17.5 102.6 Really Low 02:42:37 - 03:01:27 -318
Laughlin/Bullhead City 02:52:03 -22.7 Dark Down 17.0 102.0 Really Low 02:42:38 - 03:01:28 -350
Lake Havasu City 02:52:04 -22.8 Dark Down 17.3 102.0 Really Low 02:42:39 - 03:01:29 -418
George/Scottsdale 02:52:02 -24.7 Dark Up 19.5 103.3 Really Low 02:42:37 - 03:01:27 -476
Wildwood 02:52:09 -19.3 Dark Down 13.9 99.3 Really Low 02:42:44 - 03:01:34 -493
Idyllwild 02:52:08 -20.8 Dark Down 15.5 100.3 Really Low 02:42:43 - 03:01:33 -517
Calipatria 02:52:07 -21.6 Dark Down 16.6 100.9 Really Low 02:42:42 - 03:01:32 -571
Yuma 02:52:07 -22.3 Dark Down 17.4 101.3 Really Low 02:42:42 - 03:01:32 -609

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, (2024/01/28 02:48UT)
Object            RA         Dec     mag  sep  mel
Sirius         06:45:08.0 -16:43:24 -1.5 28.61  63
Alphard        09:27:35.2 -08:39:30  2.0 19.40  27
PPM 154212     08:17:18.4 +04:13:09  6.5  3.94  34
PPM 154219     08:17:38.8 +00:28:45  7.5  0.28  35
PPM 154254     08:18:47.4 +00:17:00  9.1  0.08  35
14YY49         08:18:28.6 +00:17:19 16.3        35
Positions are for J2000

Event circumstances last updated at 2023/12/16 05:08:25 UT

Marc W. Buie, Southwest Research Institute

RECON