RECON: TNO occultation with 416400

Event between (416400) 03UZ117 and star GA0900:00489776 with event index number of 2376713

Geocentric closest approach at 2024/03/02 02:43:45 UTC

J2000 position of star is 04:50:59.4 +01:07:25
Equinox of date position of star is 04:52:13.8 +01:09:47
Stellar brightness G=14.1, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 150 degrees from the moon. Moon is 65% illuminated.
Apparent brightness V=21.2

[RECON map]
Object is 38.5 AU from the Sun and 38.5 AU from the Earth.
Apparent velocity is 10.3 km/sec on the sky relative to the star, or, 1.3 arcsec/hr.
The 1-sigma error in the time of the event is 137 seconds.
The 1-sigma cross-track error in the shadow position is 1660 km.
The sky-plane scale is 27924.5 km/arcsec.

The object has an absolute magnitude Hv=5.2
Diameter=522.4 km assuming a 5% albedo -- 52.1 sec chord
Diameter=213.3 km assuming a 30% albedo -- 21.3 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 416400, (2024/03/02 02:47UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:15:42.0 -08:10:32  0.1 11.02 139
67Bet Eri      05:09:02.4 -05:03:25  2.8  7.50 143
PPM 148162     04:56:05.3 +00:30:16  5.7  1.17 149
PPM 148049     04:52:00.3 +01:11:15  6.6  0.06 150
416400         04:52:14.3 +01:09:48 14.1       150
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 43.6 km RECON observability=0.2 and success probability=0.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 02:51:04 -9.5 NT Down 42.2 189.5 Up 02:39:10 - 03:02:58 -2987
Kamloops 02:51:22 -11.4 NT Down 39.7 193.2 Up 02:39:28 - 03:03:16 -3123
Peachland 02:51:18 -11.9 NT Down 40.5 194.1 Up 02:39:24 - 03:03:12 -3196
Summerland 02:51:22 -11.9 NT Down 40.6 194.3 Up 02:39:28 - 03:03:16 -3208
Kelowna 02:51:22 -12.1 AT Down 40.4 194.5 Up 02:39:28 - 03:03:16 -3212
Penticton 02:51:16 -12.0 AT Down 40.7 194.4 Up 02:39:22 - 03:03:10 -3218
Oliver 02:51:15 -12.0 AT Down 41.0 194.5 Up 02:39:21 - 03:03:09 -3231
Manson/Chelan 02:51:04 -11.7 NT Down 42.4 194.0 Up 02:39:10 - 03:02:58 -3237
Ellensburg 02:50:57 -11.4 NT Down 43.3 193.6 Up 02:39:03 - 03:02:51 -3242
Wenatchee 02:51:01 -11.6 NT Down 42.9 193.8 Up 02:39:07 - 03:02:55 -3242
The Dalles 02:50:45 -11.0 NT Down 44.8 192.9 Up 02:38:51 - 03:02:39 -3245
Anarchist Mountain Observatory 02:51:18 -12.2 AT Down 41.2 194.8 Up 02:39:24 - 03:03:12 -3251
Yakima 02:50:57 -11.4 NT Down 43.7 193.7 Up 02:39:03 - 03:02:51 -3255
Brewster 02:51:08 -11.9 NT Down 42.1 194.4 Up 02:39:14 - 03:03:02 -3255
Okanogan 02:51:09 -12.0 AT Down 41.8 194.6 Up 02:39:15 - 03:03:03 -3260
Sisters 02:50:38 -10.7 NT Down 46.1 192.6 Up 02:38:44 - 03:02:32 -3261
Maupin 02:50:47 -11.1 NT Down 45.2 193.2 Up 02:38:53 - 03:02:41 -3267
Toppenish/White Swan 02:50:54 -11.5 NT Down 43.9 193.9 Up 02:39:00 - 03:02:48 -3275
Oregon Observatory 02:50:34 -10.8 NT Down 46.5 192.9 Up 02:38:40 - 03:02:28 -3285
Bend 02:50:34 -10.9 NT Down 46.3 193.1 Up 02:38:40 - 03:02:28 -3289
Chiloquin 02:50:22 -10.4 NT Down 47.9 192.5 Up 02:38:28 - 03:02:16 -3299
Klamath Falls 02:50:20 -10.5 NT Down 48.2 192.7 Up 02:38:26 - 03:02:14 -3317
Fall River/Burney 02:50:13 -10.8 NT Down 49.3 193.6 Up 02:38:19 - 03:02:07 -3389
PNWRO 02:50:57 -12.6 AT Down 44.0 196.1 Up 02:39:03 - 03:02:51 -3397
Greenville 02:50:06 -11.1 NT Down 50.1 194.5 Up 02:38:12 - 03:02:00 -3457
Gimple 02:50:05 -11.1 NT Down 50.1 194.6 Up 02:38:11 - 03:01:59 -3464
Quincy 02:50:04 -11.1 NT Down 50.3 194.5 Up 02:38:10 - 03:01:58 -3465
Cedarville 02:50:19 -11.7 NT Down 48.6 195.3 Up 02:38:25 - 03:02:13 -3468
Portola 02:50:04 -11.4 NT Down 50.3 195.3 Up 02:38:10 - 03:01:58 -3508
Reno 02:50:04 -11.9 NT Down 50.4 196.4 Up 02:38:10 - 03:01:58 -3570
Carson City 02:50:01 -12.0 NT Down 50.8 196.5 Up 02:38:07 - 03:01:55 -3585
Gardnerville 02:49:59 -12.0 NT Down 51.0 196.7 Up 02:38:05 - 03:01:53 -3598
Yerington 02:50:01 -12.4 AT Down 50.8 197.6 Up 02:38:07 - 03:01:55 -3644
Lee Vining 02:49:53 -12.5 AT Down 51.8 198.0 Up 02:37:59 - 03:01:47 -3687
Hawthorne 02:49:58 -12.9 AT Down 51.1 198.5 Up 02:38:04 - 03:01:52 -3705
Bishop 02:49:50 -13.0 AT Down 52.2 199.3 Up 02:37:56 - 03:01:44 -3770
Wildwood 02:49:23 -12.8 AT Down 55.4 200.3 Up 02:37:29 - 03:01:17 -3879
Beatty 02:49:50 -14.4 AT Down 52.2 202.1 Up 02:37:56 - 03:01:44 -3924
Sleaford 02:52:01 -20.2 Dark Down 35.0 210.7 Up 02:40:07 - 03:03:55 -3971
Idyllwild 02:49:24 -14.4 AT Down 55.1 203.7 Up 02:37:30 - 03:01:18 -4056
Laughlin/Bullhead City 02:49:43 -16.2 AT Down 53.0 206.4 Up 02:37:49 - 03:01:37 -4179
Calipatria 02:49:22 -15.4 AT Down 55.2 206.0 Up 02:37:28 - 03:01:16 -4184
Patrick 02:49:46 -16.7 AT Down 52.5 207.3 Up 02:37:52 - 03:01:40 -4228
Lake Havasu City 02:49:37 -16.4 AT Down 53.5 207.1 Up 02:37:43 - 03:01:31 -4229
Yuma 02:49:21 -16.2 AT Down 55.3 207.7 Up 02:37:27 - 03:01:15 -4280
George/Scottsdale 02:49:36 -18.5 Dark Down 53.2 211.4 Up 02:37:42 - 03:01:30 -4472
Dunrhomin 02:50:43 -23.2 Dark Down 44.7 216.7 Up 02:38:49 - 03:02:37 -4675
CU-SBO 02:50:44 -23.1 Dark Down 44.9 216.8 Up 02:38:50 - 03:02:38 -4681
Nikitin 02:50:43 -23.2 Dark Down 44.8 216.8 Up 02:38:49 - 03:02:37 -4684

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 416400, (2024/03/02 02:47UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:14:32.3 -08:12:06  0.1 11.02 139
67Bet Eri      05:07:50.8 -05:05:13  2.8  7.50 143
PPM 148162     04:54:50.7 +00:28:02  5.7  1.17 149
PPM 148049     04:50:45.4 +01:08:52  6.6  0.06 150
416400         04:50:59.4 +01:07:25 14.1       150
Positions are for J2000

Event circumstances last updated at 2024/01/08 05:07:19 UT

Marc W. Buie, Southwest Research Institute

RECON