RECON: TNO occultation with 14QY441

Event between 14QY441 and star GA1140:01391344 with event index number of 2514856

Geocentric closest approach at 2024/01/04 09:33:56 UTC

J2000 position of star is 05:41:03.0 +24:33:27
Equinox of date position of star is 05:42:23.9 +24:34:02
Stellar brightness G=15.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 111 degrees from the moon. Moon is 48% illuminated.
TNO apparent brightness V=21.4

[RECON map]
TNO is 37.4 AU from the Sun and 36.4 AU from the Earth.
The TNO is moving 24.2 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 141 seconds.
The 1-sigma cross-track error in the shadow position is 1513 km.
The sky-plane scale is 26409.1 km/arcsec.

The TNO has an absolute magnitude Hv=5.7
Diameter=436.5 km assuming a 5% albedo -- 18.1 sec chord
Diameter=178.2 km assuming a 30% albedo -- 7.4 sec chord
Dynamical classification is 4:3E
 
 
 
 
 
 

Star training set for 14QY441, (2024/01/04 09:38UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:18.1 +16:33:21  0.8 17.22 126
Alnath         05:27:48.7 +28:37:32  1.6  5.22 114
PPM 094690     05:43:22.4 +23:20:11  6.5  1.25 110
PPM 094664     05:42:33.8 +24:21:39  8.3  0.21 111
14QY441        05:42:31.4 +24:34:05 15.7       110
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 27.0 km RECON observability=1.0 and success probability=0.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 09:31:41 -49.9 Dark Up 40.3 258.4 Up 09:19:28 - 09:43:54 7417
Kamloops 09:32:06 -57.5 Dark Up 49.2 245.7 Up 09:19:53 - 09:44:19 6989
Kelowna 09:32:01 -57.7 Dark Up 49.0 247.5 Up 09:19:48 - 09:44:14 6931
Peachland 09:32:02 -57.9 Dark Up 49.2 247.3 Up 09:19:49 - 09:44:15 6915
Summerland 09:32:01 -58.0 Dark Up 49.2 247.6 Up 09:19:48 - 09:44:14 6903
Penticton 09:32:01 -58.0 Dark Up 49.2 247.8 Up 09:19:48 - 09:44:14 6899
Oliver 09:32:01 -58.3 Dark Up 49.3 248.2 Up 09:19:48 - 09:44:14 6867
Anarchist Mountain Observatory 09:31:59 -58.3 Dark Up 49.3 248.5 Up 09:19:46 - 09:44:12 6855
Tonasket 09:31:59 -58.6 Dark Up 49.4 248.8 Up 09:19:46 - 09:44:12 6824
Okanogan 09:31:58 -58.9 Dark Up 49.7 249.0 Up 09:19:45 - 09:44:11 6790
Brewster 09:31:58 -59.2 Dark Up 49.9 249.1 Up 09:19:45 - 09:44:11 6761
Manson/Chelan 09:31:59 -59.5 Dark Up 50.2 249.0 Up 09:19:46 - 09:44:12 6734
Victoria 09:32:08 -60.4 Dark Up 51.9 244.8 Up 09:19:55 - 09:44:21 6731
Wenatchee 09:31:58 -59.9 Dark Up 50.5 249.3 Up 09:19:45 - 09:44:11 6685
Ellensburg 09:31:58 -60.3 Dark Up 50.7 249.6 Up 09:19:45 - 09:44:11 6642
Yakima 09:31:57 -60.6 Dark Up 50.9 250.0 Up 09:19:44 - 09:44:10 6603
Toppenish/White Swan 09:31:56 -60.7 Dark Up 50.9 250.4 Up 09:19:43 - 09:44:09 6585
PNWRO 09:31:52 -60.3 Dark Up 50.0 252.3 Up 09:19:39 - 09:44:05 6581
Goldendale 09:31:57 -61.3 Dark Up 51.3 250.6 Up 09:19:44 - 09:44:10 6524
The Dalles 09:31:57 -61.7 Dark Up 51.6 250.5 Up 09:19:44 - 09:44:10 6495
Maupin 09:31:56 -61.9 Dark Up 51.7 251.1 Up 09:19:43 - 09:44:09 6456
Dunrhomin 09:31:08 -54.7 Dark Up 41.2 269.0 Up 09:18:55 - 09:43:21 6379
Sisters 09:31:55 -62.8 Dark Up 52.3 251.7 Up 09:19:42 - 09:44:08 6361
Bend 09:31:54 -62.8 Dark Up 52.2 252.3 Up 09:19:41 - 09:44:07 6343
Oregon Observatory 09:31:54 -63.0 Dark Up 52.4 252.4 Up 09:19:41 - 09:44:07 6323
North Lake 09:31:51 -63.2 Dark Up 52.2 253.7 Up 09:19:38 - 09:44:04 6272
Chiloquin 09:31:52 -64.2 Dark Up 53.1 253.6 Up 09:19:39 - 09:44:05 6185
Lakeview 09:31:47 -63.6 Dark Up 52.1 255.5 Up 09:19:34 - 09:44:00 6180
Klamath Falls 09:31:51 -64.4 Dark Up 53.1 254.1 Up 09:19:38 - 09:44:04 6153
Cedarville 09:31:46 -63.9 Dark Up 52.1 256.4 Up 09:19:33 - 09:43:59 6119
Fall River/Burney 09:31:48 -64.9 Dark Up 53.1 256.0 Up 09:19:35 - 09:44:01 6043
Susanville 09:31:45 -64.9 Dark Up 52.7 257.4 Up 09:19:32 - 09:43:58 5997
Gimple 09:31:45 -65.2 Dark Up 53.0 257.6 Up 09:19:32 - 09:43:58 5964
Greenville 09:31:45 -65.3 Dark Up 53.0 257.5 Up 09:19:32 - 09:43:58 5962
Quincy 09:31:45 -65.4 Dark Up 53.1 257.8 Up 09:19:32 - 09:43:58 5942
Portola 09:31:43 -65.2 Dark Up 52.7 258.4 Up 09:19:30 - 09:43:56 5940
Reno 09:31:41 -64.9 Dark Up 52.3 259.2 Up 09:19:28 - 09:43:54 5928
Carson City 09:31:40 -65.1 Dark Up 52.3 259.7 Up 09:19:27 - 09:43:53 5893
Yerington 09:31:38 -64.8 Dark Up 51.9 260.5 Up 09:19:25 - 09:43:51 5888
Gardnerville 09:31:40 -65.2 Dark Up 52.4 260.0 Up 09:19:27 - 09:43:53 5869
Hawthorne 09:31:36 -64.8 Dark Up 51.6 261.4 Up 09:19:23 - 09:43:49 5854
Tonopah 09:31:31 -64.0 Dark Up 50.6 263.1 Up 09:19:18 - 09:43:44 5841
Lee Vining 09:31:36 -65.4 Dark Up 52.0 261.8 Up 09:19:23 - 09:43:49 5785
Bishop 09:31:33 -65.2 Dark Up 51.6 263.1 Up 09:19:20 - 09:43:46 5742
Beatty 09:31:28 -64.3 Dark Up 50.3 264.8 Up 09:19:15 - 09:43:41 5736
Indian Springs 09:31:24 -63.6 Dark Up 49.5 265.9 Up 09:19:11 - 09:43:37 5730
Henderson 09:31:22 -63.3 Dark Up 49.0 266.9 Up 09:19:09 - 09:43:35 5694
Patrick 09:31:18 -62.7 Dark Up 48.1 268.3 Up 09:19:05 - 09:43:31 5661
Kingman/Dolan Springs 09:31:17 -63.0 Dark Up 48.3 268.5 Up 09:19:04 - 09:43:30 5634
Laughlin/Bullhead City 09:31:19 -63.4 Dark Up 48.7 268.2 Up 09:19:06 - 09:43:32 5617
Mohave Valley 09:31:19 -63.5 Dark Up 48.7 268.5 Up 09:19:06 - 09:43:32 5590
Lake Havasu City 09:31:17 -63.4 Dark Up 48.5 269.1 Up 09:19:04 - 09:43:30 5556
George/Scottsdale 09:31:09 -61.7 Dark Up 46.5 271.3 Up 09:18:56 - 09:43:22 5546
Parker 09:31:16 -63.5 Dark Up 48.5 269.5 Up 09:19:03 - 09:43:29 5521
Idyllwild 09:31:22 -65.5 Dark Up 50.5 268.6 Up 09:19:09 - 09:43:35 5415
Wildwood 09:31:27 -66.8 Dark Up 52.0 267.0 Up 09:19:14 - 09:43:40 5403
Calipatria 09:31:18 -64.8 Dark Up 49.5 270.0 Up 09:19:05 - 09:43:31 5383
Yuma 09:31:15 -64.2 Dark Up 48.8 271.0 Up 09:19:02 - 09:43:28 5363

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, (2024/01/04 09:38UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 17.22 126
Alnath         05:26:17.6 +28:36:23  1.6  5.22 114
PPM 094690     05:41:54.8 +23:19:34  6.5  1.25 110
PPM 094664     05:41:05.5 +24:21:01  8.3  0.21 111
14QY441        05:41:03.0 +24:33:27 15.7       111
Positions are for J2000

Event circumstances last updated at 2021/12/20 00:09:08 UT

Marc W. Buie, Southwest Research Institute

RECON