RECON: TNO occultation with 523680

Event between (523680) 13YJ151 and star GA1020:03216788 with event index number of 2706054

Geocentric closest approach at 2029/02/13 11:12:43 UTC

J2000 position of star is 08:41:47.0 +13:34:31
Equinox of date position of star is 08:43:07.3 +13:29:16
Stellar brightness G=13.0, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 164 degrees from the moon. Moon is 0% illuminated.
Apparent brightness V=22.1

[RECON map]
Object is 45.1 AU from the Sun and 44.2 AU from the Earth.
Apparent velocity is 25.0 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 99 seconds.
The 1-sigma cross-track error in the shadow position is 2610 km.
The sky-plane scale is 32027.7 km/arcsec.

The object has an absolute magnitude Hv=5.6
Diameter=457.1 km assuming a 5% albedo -- 18.5 sec chord
Diameter=186.6 km assuming a 30% albedo -- 7.6 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 523680, (2029/02/13 11:11UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:47:05.9 +27:57:12  1.1 19.54 146
45 Cnc         08:44:48.5 +12:34:28  6.0  0.96 164
PPM 125652     08:44:49.7 +14:00:01  8.5  0.63 164
PPM 125622     08:43:25.9 +13:38:24  9.2  0.17 164
523680         08:43:23.7 +13:28:11 13.0       164
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 21.9 km RECON observability=0.9 and success probability=16.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 11:10:47 -29.7 Dark Down 19.8 266.8 Really Low 11:02:04 - 11:19:31 1410
Kamloops 11:10:56 -38.4 Dark Down 28.9 255.5 Low 11:02:12 - 11:19:39 1045
Kelowna 11:10:52 -38.3 Dark Down 28.5 256.7 Low 11:02:08 - 11:19:35 1011
Peachland 11:10:52 -38.6 Dark Down 28.7 256.5 Low 11:02:08 - 11:19:35 998
Summerland 11:10:51 -38.6 Dark Down 28.7 256.6 Low 11:02:08 - 11:19:35 990
Penticton 11:10:51 -38.6 Dark Down 28.7 256.8 Low 11:02:07 - 11:19:34 988
Oliver 11:10:50 -38.7 Dark Down 28.8 257.0 Low 11:02:06 - 11:19:33 964
Anarchist Mountain Observatory 11:10:49 -38.7 Dark Down 28.7 257.2 Low 11:02:05 - 11:19:32 958
Okanogan 11:10:47 -39.1 Dark Down 29.0 257.4 Low 11:02:03 - 11:19:30 909
Brewster 11:10:46 -39.4 Dark Down 29.2 257.3 Low 11:02:03 - 11:19:30 886
Manson/Chelan 11:10:46 -39.7 Dark Down 29.4 257.1 Low 11:02:02 - 11:19:29 865
Victoria 11:10:52 -41.2 Dark Down 31.4 254.1 Up 11:02:09 - 11:19:36 839
Wenatchee 11:10:45 -40.0 Dark Down 29.7 257.3 Low 11:02:01 - 11:19:28 828
Ellensburg 11:10:44 -40.4 Dark Down 29.9 257.3 Low 11:02:00 - 11:19:27 795
Yakima 11:10:42 -40.6 Dark Down 30.0 257.5 Up 11:01:59 - 11:19:26 766
PNWRO 11:10:38 -39.8 Dark Down 29.0 259.2 Low 11:01:55 - 11:19:22 761
Toppenish/White Swan 11:10:41 -40.6 Dark Down 29.9 257.8 Low 11:01:58 - 11:19:25 754
The Dalles 11:10:40 -41.4 Dark Down 30.6 257.6 Up 11:01:56 - 11:19:23 681
Dunrhomin 11:10:04 -32.1 Dark Down 19.6 271.4 Really Low 11:01:21 - 11:18:48 657
Maupin 11:10:38 -41.6 Dark Down 30.7 257.9 Up 11:01:55 - 11:19:22 653
Nikitin 11:10:04 -32.2 Dark Down 19.6 271.5 Really Low 11:01:20 - 11:18:47 643
CU-SBO 11:10:03 -32.3 Dark Down 19.7 271.5 Really Low 11:01:20 - 11:18:47 636
Sisters 11:10:36 -42.3 Dark Down 31.2 258.0 Up 11:01:53 - 11:19:20 578
Bend 11:10:35 -42.2 Dark Down 31.1 258.4 Up 11:01:51 - 11:19:18 567
Oregon Observatory 11:10:35 -42.4 Dark Down 31.2 258.4 Up 11:01:51 - 11:19:18 551
Chiloquin 11:10:31 -43.3 Dark Down 31.8 258.8 Up 11:01:48 - 11:19:15 442
Klamath Falls 11:10:30 -43.4 Dark Down 31.8 259.1 Up 11:01:47 - 11:19:14 418
Cedarville 11:10:25 -42.6 Dark Down 30.7 260.7 Up 11:01:42 - 11:19:09 402
Fall River/Burney 11:10:26 -43.6 Dark Down 31.7 260.1 Up 11:01:42 - 11:19:09 335
Gimple 11:10:22 -43.6 Dark Down 31.5 261.0 Up 11:01:39 - 11:19:06 277
Greenville 11:10:22 -43.7 Dark Down 31.5 260.9 Up 11:01:39 - 11:19:06 275
Portola 11:10:21 -43.5 Dark Down 31.2 261.5 Up 11:01:37 - 11:19:04 261
Quincy 11:10:22 -43.7 Dark Down 31.6 261.1 Up 11:01:38 - 11:19:05 259
Reno 11:10:19 -43.1 Dark Down 30.8 262.1 Up 11:01:35 - 11:19:02 256
Yerington 11:10:16 -42.8 Dark Down 30.4 262.9 Up 11:01:32 - 11:18:59 228
Carson City 11:10:17 -43.2 Dark Down 30.8 262.3 Up 11:01:34 - 11:19:01 228
Gardnerville 11:10:17 -43.3 Dark Down 30.8 262.5 Up 11:01:33 - 11:19:00 209
Hawthorne 11:10:14 -42.6 Dark Down 30.0 263.5 Up 11:01:30 - 11:18:57 204
Lee Vining 11:10:13 -43.2 Dark Down 30.5 263.5 Up 11:01:29 - 11:18:56 146
Beatty 11:10:06 -41.7 Dark Down 28.7 265.6 Low 11:01:23 - 11:18:50 119
Bishop 11:10:10 -42.8 Dark Down 30.0 264.3 Low 11:01:26 - 11:18:53 115
Patrick 11:09:58 -39.9 Dark Down 26.5 268.1 Low 11:01:14 - 11:18:41 70
Laughlin/Bullhead City 11:09:58 -40.5 Dark Down 27.1 267.8 Low 11:01:15 - 11:18:42 31
Lake Havasu City 11:09:56 -40.5 Dark Down 26.9 268.3 Low 11:01:12 - 11:18:39 -18
George/Scottsdale 11:09:50 -38.6 Dark Down 24.9 270.1 Low 11:01:07 - 11:18:34 -20
Idyllwild 11:09:57 -42.6 Dark Down 28.9 267.3 Low 11:01:13 - 11:18:40 -144
Wildwood 11:10:01 -44.0 Dark Down 30.4 266.0 Up 11:01:17 - 11:18:44 -163
Calipatria 11:09:54 -41.7 Dark Down 28.0 268.3 Low 11:01:10 - 11:18:37 -166
Yuma 11:09:51 -41.1 Dark Down 27.2 269.1 Low 11:01:08 - 11:18:35 -179

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 523680, (2029/02/13 11:11UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 19.54 146
45 Cnc         08:43:12.3 +12:40:51  6.0  0.96 164
PPM 125652     08:43:12.8 +14:06:24  8.5  0.63 164
PPM 125622     08:41:49.2 +13:44:44  9.2  0.17 164
523680         08:41:47.0 +13:34:31 13.0       164
Positions are for J2000

Event circumstances last updated at 2024/03/08 03:03:53 UT

Marc W. Buie, Southwest Research Institute

RECON