RECON: TNO occultation with 14QY441

Event between 14QY441 and star GA1140:01290168 with event index number of 2514777

Geocentric closest approach at 2023/01/05 09:13:28 UTC

J2000 position of star is 05:34:06.2 +24:13:01
Equinox of date position of star is 05:35:26.9 +24:13:49
Stellar brightness G=15.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
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 124 seconds.
The 1-sigma cross-track error in the shadow position is 1456 km.
The sky-plane scale is 26472.3 km/arcsec.

The TNO has an absolute magnitude Hv=5.7
Diameter=436.5 km assuming a 5% albedo -- 18.4 sec chord
Diameter=178.2 km assuming a 30% albedo -- 7.5 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 +16:33:13  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 5.0 sigma about the mid-time.
The median site spacing is 26.9 km RECON observability=1.0 and success probability=16.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 09:11:13 -52.4 Dark Up 41.3 256.1 Up 09:00:22 - 09:22:03 3858
Kamloops 09:11:40 -59.2 Dark Up 50.2 243.0 Up 09:00:49 - 09:22:30 3451
Kelowna 09:11:35 -59.6 Dark Up 50.0 244.9 Up 09:00:45 - 09:22:26 3390
Peachland 09:11:36 -59.8 Dark Up 50.3 244.7 Up 09:00:46 - 09:22:27 3375
Summerland 09:11:35 -59.9 Dark Up 50.3 244.9 Up 09:00:44 - 09:22:25 3363
Penticton 09:11:34 -59.9 Dark Up 50.2 245.1 Up 09:00:44 - 09:22:25 3358
Oliver 09:11:34 -60.2 Dark Up 50.4 245.5 Up 09:00:43 - 09:22:24 3325
Anarchist Mountain Observatory 09:11:33 -60.3 Dark Up 50.3 245.9 Up 09:00:42 - 09:22:23 3313
Tonasket 09:11:33 -60.6 Dark Up 50.5 246.2 Up 09:00:42 - 09:22:23 3282
Okanogan 09:11:32 -60.9 Dark Up 50.7 246.4 Up 09:00:42 - 09:22:23 3248
Brewster 09:11:32 -61.2 Dark Up 51.0 246.5 Up 09:00:42 - 09:22:23 3218
Victoria 09:11:42 -62.1 Dark Up 52.9 242.0 Up 09:00:51 - 09:22:32 3196
Manson/Chelan 09:11:33 -61.5 Dark Up 51.3 246.3 Up 09:00:42 - 09:22:23 3192
Wenatchee 09:11:33 -62.0 Dark Up 51.6 246.7 Up 09:00:42 - 09:22:23 3143
Ellensburg 09:11:32 -62.4 Dark Up 51.9 246.9 Up 09:00:41 - 09:22:22 3100
Yakima 09:11:31 -62.8 Dark Up 52.0 247.4 Up 09:00:40 - 09:22:21 3060
Pasco 09:11:27 -62.5 Dark Up 51.3 249.3 Up 09:00:37 - 09:22:18 3054
Toppenish/White Swan 09:11:30 -62.9 Dark Up 52.0 247.8 Up 09:00:40 - 09:22:21 3042
PNWRO 09:11:26 -62.6 Dark Up 51.2 249.8 Up 09:00:35 - 09:22:16 3035
Goldendale 09:11:30 -63.5 Dark Up 52.5 248.0 Up 09:00:40 - 09:22:21 2981
The Dalles 09:11:30 -63.8 Dark Up 52.8 247.9 Up 09:00:40 - 09:22:21 2952
Maupin 09:11:30 -64.1 Dark Up 52.9 248.5 Up 09:00:39 - 09:22:20 2913
Redmond 09:11:28 -64.9 Dark Up 53.3 249.5 Up 09:00:38 - 09:22:19 2823
Sisters 09:11:29 -65.1 Dark Up 53.6 249.1 Up 09:00:39 - 09:22:20 2818
Dunrhomin 09:10:40 -58.3 Dark Up 42.6 267.2 Up 08:59:50 - 09:21:31 2800
Bend 09:11:28 -65.2 Dark Up 53.5 249.7 Up 09:00:37 - 09:22:18 2799
Oregon Observatory 09:11:28 -65.4 Dark Up 53.6 249.8 Up 09:00:37 - 09:22:18 2779
La Pine/Gilchrist 09:11:28 -65.5 Dark Up 53.7 250.0 Up 09:00:37 - 09:22:18 2758
North Lake 09:11:25 -65.6 Dark Up 53.5 251.1 Up 09:00:35 - 09:22:16 2726
Paisley 09:11:23 -65.9 Dark Up 53.4 252.2 Up 09:00:33 - 09:22:14 2679
Chiloquin 09:11:27 -66.6 Dark Up 54.4 251.0 Up 09:00:36 - 09:22:17 2640
Lakeview 09:11:22 -66.2 Dark Up 53.4 253.0 Up 09:00:31 - 09:22:12 2632
Klamath Falls 09:11:26 -66.8 Dark Up 54.4 251.6 Up 09:00:35 - 09:22:16 2608
Cedarville 09:11:20 -66.6 Dark Up 53.5 254.0 Up 09:00:30 - 09:22:11 2570
Fall River/Burney 09:11:23 -67.6 Dark Up 54.5 253.5 Up 09:00:32 - 09:22:13 2496
Susanville 09:11:19 -67.7 Dark Up 54.1 255.0 Up 09:00:29 - 09:22:10 2448
Gimple 09:11:19 -68.0 Dark Up 54.4 255.2 Up 09:00:29 - 09:22:10 2415
Greenville 09:11:20 -68.1 Dark Up 54.4 255.1 Up 09:00:29 - 09:22:10 2414
Quincy 09:11:19 -68.2 Dark Up 54.5 255.4 Up 09:00:29 - 09:22:10 2393
Portola 09:11:18 -68.1 Dark Up 54.2 256.0 Up 09:00:27 - 09:22:08 2390
Reno 09:11:15 -67.9 Dark Up 53.7 256.9 Up 09:00:25 - 09:22:06 2377
Carson City 09:11:15 -68.2 Dark Up 53.8 257.4 Up 09:00:24 - 09:22:05 2341
Yerington 09:11:13 -67.9 Dark Up 53.4 258.2 Up 09:00:22 - 09:22:03 2334
Gardnerville 09:11:14 -68.3 Dark Up 53.8 257.8 Up 09:00:24 - 09:22:05 2317
Hawthorne 09:11:10 -68.0 Dark Up 53.1 259.3 Up 09:00:20 - 09:22:01 2299
Tonopah 09:11:06 -67.4 Dark Up 52.1 261.0 Up 09:00:16 - 09:21:57 2283
Lee Vining 09:11:11 -68.6 Dark Up 53.5 259.6 Up 09:00:20 - 09:22:01 2230
Bishop 09:11:08 -68.6 Dark Up 53.1 261.0 Up 09:00:17 - 09:21:58 2185
Beatty 09:11:02 -67.8 Dark Up 51.9 262.8 Up 09:00:12 - 09:21:53 2175
Indian Springs 09:10:59 -67.3 Dark Up 51.1 263.9 Up 09:00:08 - 09:21:49 2167
Henderson 09:10:56 -67.1 Dark Up 50.6 265.1 Up 09:00:05 - 09:21:46 2129
Patrick 09:10:51 -66.6 Dark Up 49.7 266.5 Up 09:00:01 - 09:21:42 2093
Kingman/Dolan Springs 09:10:52 -66.8 Dark Up 49.9 266.7 Up 09:00:01 - 09:21:42 2065
Laughlin/Bullhead City 09:10:53 -67.2 Dark Up 50.3 266.4 Up 09:00:03 - 09:21:44 2050
Mohave Valley 09:10:53 -67.3 Dark Up 50.3 266.7 Up 09:00:02 - 09:21:43 2022
Lake Havasu City 09:10:51 -67.3 Dark Up 50.1 267.3 Up 09:00:01 - 09:21:42 1987
George/Scottsdale 09:10:43 -65.8 Dark Up 48.2 269.7 Up 08:59:53 - 09:21:34 1971
Parker 09:10:50 -67.5 Dark Up 50.1 267.8 Up 09:00:00 - 09:21:41 1952
CPSLO 09:11:11 -71.3 Dark Up 55.2 262.1 Up 09:00:20 - 09:22:01 1923
Blythe 09:10:50 -67.9 Dark Up 50.4 268.2 Up 09:00:00 - 09:21:41 1890
Idyllwild 09:10:57 -69.4 Dark Up 52.1 266.8 Up 09:00:06 - 09:21:47 1850
Wildwood 09:11:03 -70.6 Dark Up 53.7 265.2 Up 09:00:12 - 09:21:53 1843
Calipatria 09:10:52 -68.8 Dark Up 51.2 268.3 Up 09:00:02 - 09:21:43 1816
Yuma 09:10:49 -68.3 Dark Up 50.5 269.3 Up 08:59:58 - 09:21:39 1794

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 +16:30:29  0.8 15.65  20
Alnath         05:26:17.6 +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 2021/12/18 01:55:41 UT

Marc W. Buie, Southwest Research Institute

RECON