RECON: TNO occultation with 468861

Event between (468861) 13LU28 and star GA0860:00508700 with event index number of 2656293

Geocentric closest approach at 2028/01/15 06:58:35 UTC

J2000 position of star is 05:00:29.1 -03:55:40
Equinox of date position of star is 05:01:38.1 -03:53:42
Stellar brightness G=9.5, use SENSEUP=2 with the MallinCam and and exposure time of 125 milli-seconds with the QHY174 camera.
Star is 84 degrees from the moon. Moon is 86% illuminated.
Apparent brightness V=19.0

[RECON map]
Object is 11.3 AU from the Sun and 10.6 AU from the Earth.
Apparent velocity is 29.8 km/sec on the sky relative to the star, or, 13.9 arcsec/hr.
The 1-sigma error in the time of the event is 41 seconds.
The 1-sigma cross-track error in the shadow position is 5589 km.
The sky-plane scale is 7711.2 km/arcsec.

The object has an absolute magnitude Hv=8.3
Diameter=128.2 km assuming a 5% albedo -- 4.3 sec chord
Diameter=52.4 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 468861, (2028/01/15 06:59UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:15:53.2 -08:10:17  0.1  5.52  81
67Bet Eri      05:09:13.8 -05:03:08  2.8  2.17  82
PPM 187623     05:04:09.0 -04:10:19  5.6  0.63  83
PPM 187547     05:00:48.5 -04:09:02  8.0  0.37  84
PPM 187571     05:01:52.9 -03:53:17  9.4  0.00  84
468861         05:01:52.9 -03:53:17  9.5        84
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 24.6 km RECON observability=1.0 and success probability=6.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 06:57:28 -57.2 Dark Up 31.9 207.5 Up 06:53:35 - 07:01:20 4569
Sleaford 06:57:01 -59.0 Dark Up 25.6 222.3 Low 06:53:08 - 07:00:53 4558
Kelowna 06:57:25 -58.2 Dark Up 32.3 208.7 Up 06:53:33 - 07:01:18 4507
Peachland 06:57:26 -58.2 Dark Up 32.5 208.5 Up 06:53:33 - 07:01:18 4502
Summerland 06:57:25 -58.4 Dark Up 32.6 208.6 Up 06:53:33 - 07:01:18 4491
Penticton 06:57:25 -58.4 Dark Up 32.7 208.7 Up 06:53:33 - 07:01:18 4485
Oliver 06:57:25 -58.7 Dark Up 33.0 208.9 Up 06:53:32 - 07:01:17 4461
Anarchist Mountain Observatory 06:57:24 -59.0 Dark Up 33.1 209.1 Up 06:53:32 - 07:01:17 4448
Victoria 06:57:33 -57.8 Dark Up 34.7 204.7 Up 06:53:40 - 07:01:25 4443
Okanogan 06:57:24 -59.4 Dark Up 33.7 209.1 Up 06:53:32 - 07:01:17 4403
Brewster 06:57:24 -59.6 Dark Up 34.0 208.9 Up 06:53:32 - 07:01:17 4385
Manson/Chelan 06:57:25 -59.6 Dark Up 34.3 208.6 Up 06:53:32 - 07:01:17 4373
Wenatchee 06:57:25 -59.9 Dark Up 34.8 208.5 Up 06:53:32 - 07:01:17 4340
Ellensburg 06:57:25 -60.2 Dark Up 35.2 208.4 Up 06:53:32 - 07:01:17 4312
Yakima 06:57:25 -60.5 Dark Up 35.6 208.6 Up 06:53:32 - 07:01:17 4283
Toppenish/White Swan 06:57:24 -60.7 Dark Up 35.7 208.8 Up 06:53:32 - 07:01:17 4265
PNWRO 06:57:20 -61.6 Dark Up 35.5 210.7 Up 06:53:28 - 07:01:13 4226
The Dalles 06:57:25 -61.0 Dark Up 36.6 208.2 Up 06:53:33 - 07:01:18 4214
Maupin 06:57:25 -61.4 Dark Up 37.0 208.4 Up 06:53:32 - 07:01:17 4182
Sisters 06:57:25 -61.8 Dark Up 37.9 208.2 Up 06:53:33 - 07:01:18 4119
Bend 06:57:25 -62.1 Dark Up 38.0 208.6 Up 06:53:32 - 07:01:17 4099
Oregon Observatory 06:57:25 -62.2 Dark Up 38.2 208.5 Up 06:53:32 - 07:01:17 4087
Chiloquin 06:57:25 -63.0 Dark Up 39.5 208.5 Up 06:53:32 - 07:01:17 3987
Klamath Falls 06:57:24 -63.2 Dark Up 39.8 208.7 Up 06:53:32 - 07:01:17 3959
Cedarville 06:57:20 -64.6 Dark Up 39.8 210.9 Up 06:53:27 - 07:01:12 3890
Fall River/Burney 06:57:22 -64.3 Dark Up 40.7 209.7 Up 06:53:30 - 07:01:15 3861
Greenville 06:57:21 -65.1 Dark Up 41.3 210.6 Up 06:53:28 - 07:01:13 3784
Gimple 06:57:20 -65.2 Dark Up 41.3 210.7 Up 06:53:28 - 07:01:13 3783
Quincy 06:57:21 -65.3 Dark Up 41.5 210.7 Up 06:53:28 - 07:01:13 3767
Portola 06:57:20 -65.6 Dark Up 41.4 211.3 Up 06:53:27 - 07:01:12 3753
Reno 06:57:18 -66.2 Dark Up 41.4 212.2 Up 06:53:25 - 07:01:10 3725
Carson City 06:57:17 -66.4 Dark Up 41.7 212.4 Up 06:53:25 - 07:01:10 3695
Gardnerville 06:57:17 -66.6 Dark Up 41.9 212.6 Up 06:53:24 - 07:01:09 3674
Yerington 06:57:15 -66.9 Dark Up 41.6 213.3 Up 06:53:23 - 07:01:08 3673
Dunrhomin 06:56:43 -70.7 Dark Up 33.7 227.8 Up 06:52:50 - 07:00:35 3651
Nikitin 06:56:43 -70.9 Dark Up 33.8 227.9 Up 06:52:50 - 07:00:35 3636
CU-SBO 06:56:42 -71.0 Dark Up 33.9 227.8 Up 06:52:50 - 07:00:35 3631
Hawthorne 06:57:14 -67.5 Dark Up 41.7 214.1 Up 06:53:21 - 07:01:06 3629
Lee Vining 06:57:15 -67.7 Dark Up 42.4 213.8 Up 06:53:22 - 07:01:07 3586
Bishop 06:57:12 -68.5 Dark Up 42.6 215.0 Up 06:53:20 - 07:01:05 3527
Beatty 06:57:08 -69.7 Dark Up 42.2 217.2 Up 06:53:15 - 07:01:00 3472
Patrick 06:56:59 -72.4 Dark Up 41.9 221.3 Up 06:53:06 - 07:00:51 3314
Laughlin/Bullhead City 06:57:01 -72.2 Dark Up 42.5 220.7 Up 06:53:08 - 07:00:53 3299
Wildwood 06:57:11 -70.5 Dark Up 45.3 216.6 Up 06:53:18 - 07:01:03 3242
Lake Havasu City 06:56:59 -72.8 Dark Up 42.8 221.4 Up 06:53:07 - 07:00:52 3236
Idyllwild 06:57:05 -71.9 Dark Up 44.7 219.1 Up 06:53:13 - 07:00:58 3192
George/Scottsdale 06:56:52 -74.7 Dark Up 42.0 224.6 Up 06:53:00 - 07:00:45 3142
Calipatria 06:57:01 -73.1 Dark Up 44.5 220.9 Up 06:53:09 - 07:00:54 3124
Yuma 06:56:59 -73.9 Dark Up 44.3 222.2 Up 06:53:06 - 07:00:51 3076

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 468861, (2028/01/15 06:59UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:14:32.3 -08:12:06  0.1  5.52  81
67Bet Eri      05:07:50.8 -05:05:13  2.8  2.17  82
PPM 187623     05:02:45.5 -04:12:36  5.6  0.63  83
PPM 187547     04:59:24.9 -04:11:27  8.0  0.37  84
PPM 187571     05:00:29.1 -03:55:40  9.4  0.00  84
468861         05:00:29.1 -03:55:40  9.5        84
Positions are for J2000

Event circumstances last updated at 2023/02/11 03:43:16 UT

Marc W. Buie, Southwest Research Institute

RECON