RECON: TNO occultation with 469362

Event between (469362) 01KB77 and star GA0820:11916746 with event index number of 1760830

Geocentric closest approach at 2027/10/09 05:20:31 UTC

J2000 position of star is 18:44:02.8 -07:41:13
Equinox of date position of star is 18:45:22.4 -07:39:38
Stellar brightness G=16.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 28 degrees from the moon. Moon is 66% illuminated.
Apparent brightness V=22.5

[RECON map]
Object is 28.4 AU from the Sun and 28.5 AU from the Earth.
Apparent velocity is 11.2 km/sec on the sky relative to the star, or, 1.9 arcsec/hr.
The 1-sigma error in the time of the event is 577 seconds.
The 1-sigma cross-track error in the shadow position is 4721 km.
The sky-plane scale is 20668.1 km/arcsec.

The object has an absolute magnitude Hv=7.7
Diameter=199.5 km assuming a 5% albedo -- 15.5 sec chord
Diameter=81.5 km assuming a 30% albedo -- 6.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 469362, (2027/10/09 05:21UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:06.9 -26:29:28  0.9 37.04  55
Nunki          18:56:59.1 -26:15:34  2.0 18.80  22
Eps Sct        18:45:02.0 -08:14:44  4.9  0.60  28
PPM 202078     18:45:13.9 -07:42:05  8.5  0.09  28
469362         18:45:33.1 -07:39:25 16.3        27
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 1.6 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 05:20:53 -40.5 Dark Up 5.4 250.2 Really Low 05:05:53 - 05:35:53 6841
Kelowna 05:20:35 -36.8 Dark Up 14.1 239.3 Really Low 05:05:35 - 05:35:35 6679
Kamloops 05:20:27 -35.9 Dark Up 14.2 238.3 Really Low 05:05:27 - 05:35:27 6677
Peachland 05:20:36 -36.8 Dark Up 14.3 239.0 Really Low 05:05:36 - 05:35:36 6673
Penticton 05:20:40 -37.0 Dark Up 14.3 239.3 Really Low 05:05:40 - 05:35:40 6673
Summerland 05:20:37 -36.9 Dark Up 14.3 239.2 Really Low 05:05:37 - 05:35:37 6672
Anarchist Mountain Observatory 05:20:43 -37.5 Dark Up 14.4 239.6 Really Low 05:05:43 - 05:35:43 6668
Oliver 05:20:41 -37.3 Dark Up 14.5 239.4 Really Low 05:05:41 - 05:35:41 6667
Okanogan 05:20:47 -37.8 Dark Up 14.9 239.5 Really Low 05:05:47 - 05:35:47 6653
Brewster 05:20:49 -37.9 Dark Up 15.1 239.4 Really Low 05:05:49 - 05:35:49 6645
Manson/Chelan 05:20:49 -37.9 Dark Up 15.4 239.2 Really Low 05:05:49 - 05:35:49 6635
Wenatchee 05:20:53 -38.1 Dark Up 15.8 239.2 Really Low 05:05:53 - 05:35:53 6623
Dunrhomin 05:22:46 -50.9 Dark Up 8.4 252.4 Really Low 05:07:46 - 05:37:46 6619
PNWRO 05:21:12 -39.8 Dark Up 15.6 240.8 Really Low 05:06:12 - 05:36:12 6617
Nikitin 05:22:47 -51.1 Dark Up 8.4 252.4 Really Low 05:07:47 - 05:37:47 6613
Ellensburg 05:20:58 -38.3 Dark Up 16.1 239.1 Really Low 05:05:58 - 05:35:58 6612
CU-SBO 05:22:48 -51.1 Dark Up 8.5 252.4 Really Low 05:07:48 - 05:37:48 6610
Yakima 05:21:00 -38.5 Dark Up 16.3 239.2 Really Low 05:06:00 - 05:36:00 6603
Toppenish/White Swan 05:21:02 -38.7 Dark Up 16.3 239.4 Really Low 05:06:02 - 05:36:02 6601
Victoria 05:20:32 -35.7 Dark Up 17.0 236.2 Really Low 05:05:32 - 05:35:32 6591
The Dalles 05:21:06 -38.8 Dark Up 17.2 239.0 Really Low 05:06:06 - 05:36:06 6570
Maupin 05:21:09 -39.1 Dark Up 17.3 239.2 Really Low 05:06:09 - 05:36:09 6562
Sisters 05:21:14 -39.4 Dark Up 18.1 239.0 Really Low 05:06:14 - 05:36:14 6532
Bend 05:21:18 -39.7 Dark Up 18.0 239.3 Really Low 05:06:18 - 05:36:18 6531
Oregon Observatory 05:21:19 -39.8 Dark Up 18.2 239.3 Really Low 05:06:19 - 05:36:19 6524
Cedarville 05:21:44 -42.0 Dark Up 18.5 241.0 Really Low 05:06:44 - 05:36:44 6480
Chiloquin 05:21:29 -40.3 Dark Up 19.1 239.3 Really Low 05:06:29 - 05:36:29 6480
Klamath Falls 05:21:32 -40.6 Dark Up 19.2 239.5 Really Low 05:06:32 - 05:36:32 6472
Fall River/Burney 05:21:43 -41.5 Dark Up 19.5 240.2 Really Low 05:06:43 - 05:36:43 6443
Gimple 05:21:53 -42.4 Dark Up 19.6 240.9 Really Low 05:06:53 - 05:36:53 6423
Reno 05:22:03 -43.4 Dark Up 19.1 242.0 Really Low 05:07:03 - 05:37:03 6423
Greenville 05:21:52 -42.4 Dark Up 19.6 240.9 Really Low 05:06:52 - 05:36:52 6422
Portola 05:21:58 -42.9 Dark Up 19.5 241.4 Really Low 05:06:58 - 05:36:58 6420
Yerington 05:22:10 -44.2 Dark Up 18.9 242.7 Really Low 05:07:10 - 05:37:10 6416
Quincy 05:21:55 -42.5 Dark Up 19.7 240.9 Really Low 05:06:55 - 05:36:55 6415
Carson City 05:22:06 -43.7 Dark Up 19.3 242.1 Really Low 05:07:06 - 05:37:06 6411
Hawthorne 05:22:17 -44.8 Dark Up 18.7 243.2 Really Low 05:07:17 - 05:37:17 6409
Gardnerville 05:22:08 -43.8 Dark Up 19.4 242.2 Really Low 05:07:08 - 05:37:08 6404
Lee Vining 05:22:19 -44.8 Dark Up 19.3 243.0 Really Low 05:07:19 - 05:37:19 6381
Beatty 05:22:37 -47.0 Dark Up 18.1 245.1 Really Low 05:07:37 - 05:37:37 6380
Bishop 05:22:27 -45.7 Dark Up 19.1 243.8 Really Low 05:07:27 - 05:37:27 6371
Patrick 05:23:01 -49.9 Dark Up 16.4 247.6 Really Low 05:08:01 - 05:38:01 6365
Laughlin/Bullhead City 05:23:01 -49.6 Dark Up 17.1 247.2 Really Low 05:08:01 - 05:38:01 6344
Lake Havasu City 05:23:07 -50.2 Dark Up 17.1 247.6 Really Low 05:08:07 - 05:38:07 6321
George/Scottsdale 05:23:24 -52.3 Dark Up 15.4 249.4 Really Low 05:08:24 - 05:38:24 6320
Idyllwild 05:23:04 -49.0 Dark Up 19.2 246.2 Really Low 05:08:04 - 05:38:04 6253
Calipatria 05:23:14 -50.2 Dark Up 18.5 247.2 Really Low 05:08:14 - 05:38:14 6244
Yuma 05:23:21 -51.1 Dark Up 18.0 247.9 Really Low 05:08:21 - 05:38:21 6238
Wildwood 05:22:54 -47.5 Dark Up 20.6 244.8 Low 05:07:54 - 05:37:54 6235

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 469362, (2027/10/09 05:21UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 37.04  55
Nunki          18:55:15.9 -26:17:49  2.0 18.80  22
Eps Sct        18:43:31.3 -08:16:31  4.9  0.60  28
PPM 202078     18:43:43.5 -07:43:52  8.5  0.09  28
469362         18:44:02.8 -07:41:13 16.3        28
Positions are for J2000

Event circumstances last updated at 2024/06/22 21:28:49 UT

Marc W. Buie, Southwest Research Institute

RECON