RECON: TNO occultation with 15TQ408

Event between 15TQ408 and star GA1180:00460127 with event index number of 2364382

Geocentric closest approach at 2023/11/04 10:02:47 UTC

J2000 position of star is 03:07:44.9 +29:16:31
Equinox of date position of star is 03:09:04.0 +29:21:29
Stellar brightness G=12.6, use SENSEUP=16 with the MallinCam and and exposure time of 250 milli-seconds with the QHY174 camera.
Star is 68 degrees from the moon. Moon is 59% illuminated.
TNO apparent brightness V=23.0

[RECON map]
TNO is 31.4 AU from the Sun and 30.4 AU from the Earth.
The TNO is moving 23.9 km/sec on the sky relative to the star, or, 3.9 arcsec/hr.
The 1-sigma error in the time of the event is 235 seconds.
The 1-sigma cross-track error in the shadow position is 3017 km.
The sky-plane scale is 22044.9 km/arcsec.

The TNO has an absolute magnitude Hv=8.0
Diameter=122.5 km assuming a 5% albedo -- 6.3 sec chord
Diameter=50.0 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 15TQ408, (2023/11/04 10:07UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:17.5 +16:33:19  0.8 23.92  53
44Zet Per      03:55:38.2 +31:57:09  2.8 10.31  58
55 Ari         03:11:03.2 +29:10:00  5.7  0.45  68
PPM 092221     03:08:43.2 +29:12:50  7.7  0.18  68
PPM 092223     03:09:14.4 +29:15:03  9.9  0.12  68
15TQ408        03:09:11.4 +29:21:56 12.6        68
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 3.8 sigma about the mid-time.
The median site spacing is 26.9 km RECON observability=1.0 and success probability=17.4%
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 10:01:11 -45.1 Dark Up 60.6 234.9 Up 09:46:11 - 10:16:11 1047
Kelowna 10:01:11 -45.4 Dark Up 60.9 235.3 Up 09:46:11 - 10:16:11 1006
Peachland 10:01:12 -45.6 Dark Up 61.1 235.0 Up 09:46:12 - 10:16:12 993
Summerland 10:01:11 -45.7 Dark Up 61.1 235.4 Up 09:46:11 - 10:16:11 978
Penticton 10:01:11 -45.6 Dark Up 61.1 235.6 Up 09:46:11 - 10:16:11 971
Oliver 10:01:11 -45.9 Dark Up 61.3 236.1 Up 09:46:11 - 10:16:11 934
Anarchist Mountain Observatory 10:01:10 -45.9 Dark Up 61.3 236.7 Up 09:46:10 - 10:16:10 917
Tonasket 10:01:10 -46.1 Dark Up 61.5 237.0 Up 09:46:10 - 10:16:10 884
Victoria 10:01:21 -48.2 Dark Up 63.7 231.4 Up 09:46:21 - 10:16:21 857
Okanogan 10:01:10 -46.4 Dark Up 61.8 237.4 Up 09:46:10 - 10:16:10 848
Brewster 10:01:11 -46.6 Dark Up 62.0 237.5 Up 09:46:11 - 10:16:11 818
Manson/Chelan 10:01:11 -47.0 Dark Up 62.4 237.3 Up 09:46:11 - 10:16:11 795
Wenatchee 10:01:12 -47.3 Dark Up 62.7 237.8 Up 09:46:12 - 10:16:12 744
Ellensburg 10:01:12 -47.7 Dark Up 63.0 238.2 Up 09:46:12 - 10:16:12 699
Yakima 10:01:12 -48.0 Dark Up 63.3 238.9 Up 09:46:12 - 10:16:12 655
Toppenish/White Swan 10:01:11 -48.0 Dark Up 63.3 239.5 Up 09:46:11 - 10:16:11 633
Pasco 10:01:07 -47.4 Dark Up 62.6 241.4 Up 09:46:07 - 10:16:07 624
PNWRO 10:01:06 -47.4 Dark Up 62.6 242.2 Up 09:46:06 - 10:16:06 598
Goldendale 10:01:12 -48.6 Dark Up 63.8 239.8 Up 09:46:12 - 10:16:12 572
The Dalles 10:01:13 -48.9 Dark Up 64.1 239.7 Up 09:46:13 - 10:16:13 547
Maupin 10:01:12 -49.1 Dark Up 64.3 240.6 Up 09:46:12 - 10:16:12 502
Sisters 10:01:13 -49.9 Dark Up 65.0 241.5 Up 09:46:13 - 10:16:13 406
Redmond 10:01:12 -49.7 Dark Up 64.8 242.1 Up 09:46:12 - 10:16:12 405
Bend 10:01:13 -49.9 Dark Up 65.0 242.4 Up 09:46:13 - 10:16:13 381
Oregon Observatory 10:01:13 -50.0 Dark Up 65.1 242.5 Up 09:46:13 - 10:16:13 362
La Pine/Gilchrist 10:01:13 -50.2 Dark Up 65.3 242.8 Up 09:46:13 - 10:16:13 340
North Lake 10:01:11 -50.1 Dark Up 65.1 244.5 Up 09:46:11 - 10:16:11 294
Paisley 10:01:09 -50.2 Dark Up 65.1 246.0 Up 09:46:09 - 10:16:09 235
Chiloquin 10:01:14 -51.0 Dark Up 66.0 244.5 Up 09:46:14 - 10:16:14 218
Klamath Falls 10:01:13 -51.2 Dark Up 66.1 245.3 Up 09:46:13 - 10:16:13 181
Lakeview 10:01:09 -50.3 Dark Up 65.1 247.3 Up 09:46:09 - 10:16:09 180
Cedarville 10:01:08 -50.6 Dark Up 65.3 248.8 Up 09:46:08 - 10:16:08 109
Dunrhomin 10:00:21 -40.8 Dark Up 54.6 265.1 Up 09:45:21 - 10:15:21 100
Fall River/Burney 10:01:12 -51.6 Dark Up 66.3 248.3 Up 09:46:12 - 10:16:12 53
Susanville 10:01:09 -51.5 Dark Up 66.0 250.5 Up 09:46:09 - 10:16:09 -14
Greenville 10:01:10 -51.8 Dark Up 66.3 250.8 Up 09:46:10 - 10:16:10 -45
Gimple 10:01:09 -51.7 Dark Up 66.2 250.9 Up 09:46:09 - 10:16:09 -45
Quincy 10:01:10 -51.9 Dark Up 66.4 251.2 Up 09:46:10 - 10:16:10 -68
Portola 10:01:08 -51.6 Dark Up 66.1 252.0 Up 09:46:08 - 10:16:08 -80
Reno 10:01:06 -51.3 Dark Up 65.7 253.3 Up 09:46:06 - 10:16:06 -107
Carson City 10:01:06 -51.5 Dark Up 65.7 254.1 Up 09:46:06 - 10:16:06 -147
Yerington 10:01:03 -51.2 Dark Up 65.3 255.2 Up 09:46:03 - 10:16:03 -166
Gardnerville 10:01:05 -51.6 Dark Up 65.8 254.7 Up 09:46:05 - 10:16:05 -173
Hawthorne 10:01:01 -51.0 Dark Up 65.0 256.7 Up 09:46:01 - 10:16:01 -214
Tonopah 10:00:57 -50.2 Dark Up 64.1 259.0 Up 09:45:57 - 10:15:57 -259
Lee Vining 10:01:03 -51.6 Dark Up 65.5 257.5 Up 09:46:03 - 10:16:03 -279
Bishop 10:01:00 -51.3 Dark Up 65.1 259.4 Up 09:46:00 - 10:16:00 -341
Beatty 10:00:55 -50.4 Dark Up 63.9 261.8 Up 09:45:55 - 10:15:55 -384
Indian Springs 10:00:51 -49.7 Dark Up 63.1 263.3 Up 09:45:51 - 10:15:51 -413
Henderson 10:00:48 -49.4 Dark Up 62.6 264.8 Up 09:45:48 - 10:15:48 -467
Patrick 10:00:44 -48.7 Dark Up 61.8 266.8 Up 09:45:44 - 10:15:44 -527
Kingman/Dolan Springs 10:00:45 -48.9 Dark Up 61.9 267.1 Up 09:45:45 - 10:15:45 -553
Laughlin/Bullhead City 10:00:46 -49.3 Dark Up 62.4 266.8 Up 09:45:46 - 10:15:46 -560
CPSLO 10:01:07 -53.8 Dark Up 67.2 262.0 Up 09:46:07 - 10:16:07 -578
Mohave Valley 10:00:46 -49.4 Dark Up 62.4 267.3 Up 09:45:46 - 10:15:46 -590
Lake Havasu City 10:00:45 -49.4 Dark Up 62.2 268.2 Up 09:45:45 - 10:15:45 -632
Parker 10:00:45 -49.4 Dark Up 62.2 268.9 Up 09:45:45 - 10:15:45 -671
George/Scottsdale 10:00:37 -47.7 Dark Up 60.2 271.0 Up 09:45:37 - 10:15:37 -695
Wildwood 10:01:00 -52.8 Dark Up 65.7 266.3 Up 09:46:00 - 10:16:00 -704
Blythe 10:00:46 -49.8 Dark Up 62.4 269.7 Up 09:45:46 - 10:15:46 -731
Idyllwild 10:00:53 -51.5 Dark Up 64.2 268.3 Up 09:45:53 - 10:15:53 -733
Calipatria 10:00:49 -50.7 Dark Up 63.2 270.2 Up 09:45:49 - 10:15:49 -793
Yuma 10:00:46 -50.1 Dark Up 62.4 271.5 Up 09:45:46 - 10:15:46 -834

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 15TQ408, (2023/11/04 10:07UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 23.92  53
44Zet Per      03:54:07.9 +31:53:01  2.8 10.31  58
55 Ari         03:09:36.8 +29:04:37  5.7  0.45  68
PPM 092221     03:07:16.9 +29:07:24  7.7  0.18  68
PPM 092223     03:07:48.0 +29:09:38  9.9  0.12  68
15TQ408        03:07:44.9 +29:16:31 12.6        68
Positions are for J2000

Event circumstances last updated at 2021/10/27 00:05:39 UT

Marc W. Buie, Southwest Research Institute

RECON