RECON: TNO occultation with 14QY441

Event between 14QY441 and star GA1140:01290168 with event index number of 1244392

Geocentric closest approach at 2023/01/05 09:16:44 UTC

J2000 position of star is 05:34:06.2 +24:13:01
Equinox of date position of star is 05:35:17.6 +24:13:44
Stellar brightness G=15.2, use SENSEUP=128
Star is 4 degrees from the moon. Moon is 98% illuminated.
TNO apparent brightness V=21.4

[RECON map]
TNO is 37.4 AU from the Sun and 36.5 AU from the Earth.
The TNO is moving 23.7 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 196 seconds.
The 1-sigma cross-track error in the shadow position is 1680 km.
The sky-plane scale is 26472.2 km/arcsec.

The TNO has an absolute magnitude Hv=5.7
Diameter=430.5 km assuming a 5% albedo -- 18.2 sec chord
Diameter=175.8 km assuming a 30% albedo -- 7.4 sec chord
Dynamical classification is 4:3E
 
 
 
 
 
 

Star training set for 14QY441, (2023/01/05 09:17UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:14.6 +16:33:14  0.8 15.65  20
Alnath         05:27:44.9 +28:37:29  1.6  4.72   5
PPM 094690     05:43:18.8 +23:20:09  6.5  2.00   4
PPM 094515     05:36:28.1 +24:18:15  8.0  0.23   4
14QY441        05:35:30.7 +24:13:52 15.2         4
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 4.6 sigma about the mid-time.
The median site spacing is 21.4 km RECON observability=1.0 and success probability=11.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 09:14:50 -59.3 Dark Up 49.5 245.8 Up 08:59:50 - 09:29:50 3880
Summerland 09:14:50 -59.6 Dark Up 49.8 245.8 Up 08:59:50 - 09:29:50 3847
Penticton 09:14:49 -59.6 Dark Up 49.8 246.0 Up 08:59:49 - 09:29:49 3843
Okanagan Falls 09:14:49 -59.8 Dark Up 49.8 246.2 Up 08:59:49 - 09:29:49 3825
Oliver 09:14:49 -59.9 Dark Up 49.9 246.4 Up 08:59:49 - 09:29:49 3810
Anarchist Mountain Observatory 09:14:48 -60.0 Dark Up 49.8 246.8 Up 08:59:48 - 09:29:48 3797
Oroville 09:14:48 -60.1 Dark Up 49.9 246.8 Up 08:59:48 - 09:29:48 3789
Tonasket 09:14:47 -60.3 Dark Up 50.0 247.0 Up 08:59:47 - 09:29:47 3767
Okanogan 09:14:47 -60.6 Dark Up 50.2 247.2 Up 08:59:47 - 09:29:47 3732
Brewster 09:14:47 -60.9 Dark Up 50.5 247.3 Up 08:59:47 - 09:29:47 3703
Manson/Chelan 09:14:47 -61.2 Dark Up 50.8 247.2 Up 08:59:47 - 09:29:47 3676
Entiat 09:14:47 -61.4 Dark Up 50.9 247.4 Up 08:59:47 - 09:29:47 3654
Wenatchee 09:14:46 -61.7 Dark Up 51.1 247.5 Up 08:59:46 - 09:29:46 3628
Ellensburg 09:14:46 -62.1 Dark Up 51.4 247.8 Up 08:59:46 - 09:29:46 3584
Yakima 09:14:45 -62.5 Dark Up 51.5 248.2 Up 08:59:45 - 09:29:45 3545
Pasco 09:14:41 -62.1 Dark Up 50.7 250.1 Up 08:59:41 - 09:29:41 3540
Toppenish/White Swan 09:14:45 -62.6 Dark Up 51.5 248.7 Up 08:59:45 - 09:29:45 3527
PNWRO 09:14:41 -62.2 Dark Up 50.7 250.6 Up 08:59:41 - 09:29:41 3521
George/Umatilla 09:14:41 -62.5 Dark Up 51.0 250.3 Up 08:59:41 - 09:29:41 3504
Goldendale 09:14:45 -63.2 Dark Up 52.0 248.9 Up 08:59:45 - 09:29:45 3466
The Dalles 09:14:45 -63.5 Dark Up 52.3 248.8 Up 08:59:45 - 09:29:45 3437
Maupin 09:14:44 -63.8 Dark Up 52.4 249.4 Up 08:59:44 - 09:29:44 3398
Madras/Culver 09:14:43 -64.3 Dark Up 52.6 250.0 Up 08:59:43 - 09:29:43 3344
Redmond 09:14:42 -64.6 Dark Up 52.8 250.4 Up 08:59:42 - 09:29:42 3308
Sisters 09:14:44 -64.7 Dark Up 53.0 249.9 Up 08:59:44 - 09:29:44 3302
Bend 09:14:42 -64.8 Dark Up 52.9 250.5 Up 08:59:42 - 09:29:42 3284
Niwot 09:13:55 -57.8 Dark Up 42.0 267.9 Up 08:58:55 - 09:28:55 3278
SwRI 09:13:55 -57.9 Dark Up 42.1 267.9 Up 08:58:55 - 09:28:55 3265
Oregon Observatory 09:14:42 -65.0 Dark Up 53.1 250.6 Up 08:59:42 - 09:29:42 3264
La Pine/Gilchrist 09:14:42 -65.2 Dark Up 53.2 250.8 Up 08:59:42 - 09:29:42 3243
North Lake 09:14:40 -65.3 Dark Up 52.9 251.9 Up 08:59:40 - 09:29:40 3212
Paisley 09:14:38 -65.5 Dark Up 52.8 253.0 Up 08:59:38 - 09:29:38 3164
Chiloquin 09:14:41 -66.2 Dark Up 53.8 251.8 Up 08:59:41 - 09:29:41 3126
Lakeview 09:14:36 -65.8 Dark Up 52.8 253.8 Up 08:59:36 - 09:29:36 3118
Klamath Falls 09:14:40 -66.5 Dark Up 53.8 252.4 Up 08:59:40 - 09:29:40 3093
Tulelake 09:14:39 -66.5 Dark Up 53.7 253.0 Up 08:59:39 - 09:29:39 3072
Cedarville 09:14:35 -66.2 Dark Up 52.9 254.8 Up 08:59:35 - 09:29:35 3056
Fall River/Burney 09:14:37 -67.2 Dark Up 53.9 254.3 Up 08:59:37 - 09:29:37 2982
Susanville 09:14:34 -67.3 Dark Up 53.5 255.8 Up 08:59:34 - 09:29:34 2934
Gimple 09:14:34 -67.6 Dark Up 53.8 256.0 Up 08:59:34 - 09:29:34 2901
Greenville 09:14:34 -67.7 Dark Up 53.8 255.9 Up 08:59:34 - 09:29:34 2900
Quincy 09:14:34 -67.8 Dark Up 53.9 256.1 Up 08:59:34 - 09:29:34 2879
Portola 09:14:32 -67.6 Dark Up 53.5 256.7 Up 08:59:32 - 09:29:32 2877
Reno 09:14:30 -67.5 Dark Up 53.1 257.6 Up 08:59:30 - 09:29:30 2863
Carson City 09:14:29 -67.7 Dark Up 53.2 258.1 Up 08:59:29 - 09:29:29 2828
Yerington 09:14:27 -67.5 Dark Up 52.7 258.9 Up 08:59:27 - 09:29:27 2822
Gardnerville 09:14:29 -67.9 Dark Up 53.2 258.5 Up 08:59:29 - 09:29:29 2804
Hawthorne 09:14:25 -67.5 Dark Up 52.4 259.9 Up 08:59:25 - 09:29:25 2786
Tonopah 09:14:20 -66.9 Dark Up 51.4 261.6 Up 08:59:20 - 09:29:20 2771
Lee Vining 09:14:25 -68.1 Dark Up 52.9 260.3 Up 08:59:25 - 09:29:25 2718
Bishop 09:14:22 -68.1 Dark Up 52.4 261.6 Up 08:59:22 - 09:29:22 2673
Beatty 09:14:16 -67.3 Dark Up 51.2 263.4 Up 08:59:16 - 09:29:16 2664
Indian Springs 09:14:13 -66.7 Dark Up 50.4 264.5 Up 08:59:13 - 09:29:13 2656
Henderson 09:14:10 -66.5 Dark Up 49.9 265.6 Up 08:59:10 - 09:29:10 2619
Lone Pine 09:14:20 -68.3 Dark Up 52.3 262.8 Up 08:59:20 - 09:29:20 2603
Patrick 09:14:06 -66.0 Dark Up 49.1 267.0 Up 08:59:06 - 09:29:06 2583
DCO 09:14:03 -65.6 Dark Up 48.5 267.8 Up 08:59:03 - 09:29:03 2570
Searchlight/Boulder City 09:14:09 -66.7 Dark Up 49.9 266.3 Up 08:59:09 - 09:29:09 2562
Kingman/Dolan Springs 09:14:06 -66.2 Dark Up 49.2 267.2 Up 08:59:06 - 09:29:06 2556
Laughlin/Bullhead City 09:14:07 -66.6 Dark Up 49.6 266.9 Up 08:59:07 - 09:29:07 2540
Mohave Valley 09:14:07 -66.7 Dark Up 49.7 267.2 Up 08:59:07 - 09:29:07 2512
Lake Havasu City 09:14:05 -66.7 Dark Up 49.5 267.8 Up 08:59:05 - 09:29:05 2478
Parker 09:14:05 -66.8 Dark Up 49.5 268.3 Up 08:59:05 - 09:29:05 2443
CPSLO 09:14:25 -70.7 Dark Up 54.5 262.7 Up 08:59:25 - 09:29:25 2410
Blythe 09:14:05 -67.3 Dark Up 49.7 268.7 Up 08:59:05 - 09:29:05 2381
Idyllwild 09:14:11 -68.8 Dark Up 51.5 267.3 Up 08:59:11 - 09:29:11 2340
Wildwood 09:14:17 -70.0 Dark Up 53.0 265.7 Up 08:59:17 - 09:29:17 2332
Calipatria 09:14:06 -68.2 Dark Up 50.5 268.8 Up 08:59:06 - 09:29:06 2306
Yuma 09:14:03 -67.7 Dark Up 49.8 269.8 Up 08:59:03 - 09:29:03 2285

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, (2023/01/05 09:17UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 15.65  20
Alnath         05:26:17.5 +28:36:23  1.6  4.72   5
PPM 094690     05:41:54.8 +23:19:34  6.5  2.00   4
PPM 094515     05:35:03.6 +24:17:26  8.0  0.23   4
14QY441        05:34:06.2 +24:13:01 15.2         4
Positions are for J2000

Event circumstances last updated at 2019/06/08 04:35:09 UT

Marc W. Buie, Southwest Research Institute

RECON