RECON: TNO occultation with 500877

Event between (500877) 13JE64 and star GA0700:13778930 with event index number of 2778194

Geocentric closest approach at 2029/06/08 07:43:24 UTC

J2000 position of star is 17:35:24.4 -19:56:47
Equinox of date position of star is 17:36:51.6 -19:57:38
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 130 degrees from the moon. Moon is 14% illuminated.
Apparent brightness V=24.2

[RECON map]
Object is 39.6 AU from the Sun and 38.6 AU from the Earth.
Apparent velocity is 24.2 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 748 seconds.
The 1-sigma cross-track error in the shadow position is 3620 km.
The sky-plane scale is 27989.0 km/arcsec.

The object has an absolute magnitude Hv=8.3
Diameter=138.0 km assuming a 5% albedo -- 5.4 sec chord
Diameter=56.4 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is 2:1E
 
 
 
 
 
 

Star training set for 500877, (2029/06/08 07:43UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:13.0 -26:29:41  0.9 16.48 145
35Eta Oph      17:12:04.1 -15:45:33  2.6  7.30 135
PPM 267109     17:40:31.1 -21:55:38  6.4  2.12 129
PPM 233364     17:39:53.4 -19:59:22  8.5  0.64 129
PPM 233293     17:37:18.0 -19:54:49  9.1  0.06 130
500877         17:37:09.1 -19:57:48 16.7       129
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 1.2 sigma about the mid-time.
The median site spacing is 17.4 km RECON observability=0.9 and success probability=2.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 07:43:21 -14.5 AT Down 17.9 183.0 Really Low 07:28:21 - 07:58:21 8057
Kamloops 07:44:02 -16.4 AT Down 18.7 168.9 Really Low 07:29:02 - 07:59:02 7959
Kelowna 07:44:01 -17.2 AT Down 19.6 169.7 Really Low 07:29:01 - 07:59:01 7933
Peachland 07:44:02 -17.3 AT Down 19.7 169.4 Really Low 07:29:02 - 07:59:02 7927
Summerland 07:44:01 -17.5 AT Down 19.8 169.5 Really Low 07:29:01 - 07:59:01 7921
Penticton 07:44:01 -17.5 AT Down 19.9 169.6 Really Low 07:29:01 - 07:59:01 7919
Oliver 07:44:01 -17.9 AT Down 20.3 169.6 Low 07:29:01 - 07:59:01 7905
Anarchist Mountain Observatory 07:44:01 -18.1 Dark Down 20.4 169.7 Low 07:29:01 - 07:59:01 7900
Okanogan 07:44:02 -18.7 Dark Down 21.1 169.5 Low 07:29:02 - 07:59:02 7871
Brewster 07:44:02 -19.0 Dark Down 21.3 169.3 Low 07:29:02 - 07:59:02 7859
Victoria 07:44:12 -18.3 Dark Down 20.4 165.7 Low 07:29:12 - 07:59:12 7851
Manson/Chelan 07:44:05 -19.2 Dark Down 21.5 168.9 Low 07:29:05 - 07:59:05 7847
Wenatchee 07:44:04 -19.6 Dark Down 21.9 168.7 Low 07:29:04 - 07:59:04 7826
Ellensburg 07:44:05 -20.0 Dark Down 22.3 168.4 Low 07:29:05 - 07:59:05 7806
Yakima 07:44:06 -20.4 Dark Down 22.7 168.4 Low 07:29:06 - 07:59:06 7788
Toppenish/White Swan 07:44:05 -20.6 Dark Down 22.9 168.5 Low 07:29:05 - 07:59:05 7779
PNWRO 07:44:01 -21.1 Dark Down 23.5 170.0 Low 07:29:01 - 07:59:01 7772
The Dalles 07:44:08 -21.4 Dark Down 23.6 167.7 Low 07:29:08 - 07:59:08 7737
Maupin 07:44:09 -21.8 Dark Down 24.0 167.7 Low 07:29:09 - 07:59:09 7719
Sisters 07:44:10 -22.7 Dark Down 24.8 167.2 Low 07:29:10 - 07:59:10 7673
Bend 07:44:10 -22.9 Dark Down 25.0 167.4 Low 07:29:10 - 07:59:10 7663
Oregon Observatory 07:44:10 -23.1 Dark Down 25.2 167.2 Low 07:29:10 - 07:59:10 7654
Chiloquin 07:44:12 -24.4 Dark Down 26.4 166.7 Low 07:29:12 - 07:59:12 7583
Klamath Falls 07:44:12 -24.7 Dark Down 26.7 166.7 Low 07:29:12 - 07:59:12 7566
Cedarville 07:44:07 -25.5 Dark Down 27.7 168.3 Low 07:29:07 - 07:59:07 7541
Dunrhomin 07:43:17 -26.1 Dark Down 29.7 184.1 Low 07:28:17 - 07:58:17 7528
Nikitin 07:43:17 -26.2 Dark Down 29.9 184.1 Low 07:28:17 - 07:58:17 7517
CU-SBO 07:43:17 -26.3 Dark Down 30.0 184.0 Low 07:28:17 - 07:58:17 7514
Fall River/Burney 07:44:12 -25.9 Dark Down 28.0 167.0 Low 07:29:12 - 07:59:12 7505
Gimple 07:44:10 -26.8 Dark Down 28.9 167.4 Low 07:29:10 - 07:59:10 7459
Greenville 07:44:11 -26.8 Dark Down 28.9 167.3 Low 07:29:11 - 07:59:11 7458
Quincy 07:44:11 -27.0 Dark Down 29.1 167.3 Low 07:29:11 - 07:59:11 7447
Portola 07:44:09 -27.2 Dark Down 29.3 167.8 Low 07:29:09 - 07:59:09 7444
Reno 07:44:08 -27.5 Dark Down 29.7 168.5 Low 07:29:08 - 07:59:08 7434
Carson City 07:44:08 -27.8 Dark Down 30.0 168.4 Up 07:29:08 - 07:59:08 7413
Yerington 07:44:05 -28.1 Dark Down 30.3 169.1 Up 07:29:05 - 07:59:05 7406
Gardnerville 07:44:07 -28.1 Dark Down 30.3 168.5 Up 07:29:07 - 07:59:07 7399
Hawthorne 07:44:04 -28.6 Dark Down 30.9 169.6 Up 07:29:04 - 07:59:04 7383
Lee Vining 07:44:05 -29.1 Dark Down 31.3 169.0 Up 07:29:05 - 07:59:05 7347
Bishop 07:44:03 -29.7 Dark Down 32.0 169.7 Up 07:29:03 - 07:59:03 7315
Beatty 07:43:58 -30.2 Dark Down 32.7 171.5 Up 07:28:58 - 07:58:58 7297
Patrick 07:43:47 -31.7 Dark Down 34.5 174.5 Up 07:28:47 - 07:58:47 7220
Laughlin/Bullhead City 07:43:50 -31.9 Dark Down 34.6 173.7 Up 07:28:50 - 07:58:50 7201
Lake Havasu City 07:43:49 -32.6 Dark Down 35.3 174.0 Up 07:28:49 - 07:58:49 7159
George/Scottsdale 07:43:40 -33.3 Dark Down 36.3 176.7 Up 07:28:40 - 07:58:40 7119
Wildwood 07:44:05 -33.0 Dark Down 35.2 169.1 Up 07:29:05 - 07:59:05 7107
Idyllwild 07:43:59 -33.4 Dark Down 35.8 171.2 Up 07:28:59 - 07:58:59 7097
Calipatria 07:43:54 -34.0 Dark Down 36.6 172.5 Up 07:28:54 - 07:58:54 7062
Yuma 07:43:50 -34.4 Dark Down 37.1 173.5 Up 07:28:50 - 07:58:50 7038

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 500877, (2029/06/08 07:43UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 16.48 145
35Eta Oph      17:10:22.7 -15:43:29  2.6  7.30 135
PPM 267109     17:38:44.8 -21:54:46  6.4  2.12 129
PPM 233364     17:38:08.6 -19:58:28  8.5  0.64 129
PPM 233293     17:35:33.3 -19:53:49  9.1  0.06 130
500877         17:35:24.4 -19:56:47 16.7       130
Positions are for J2000

Event circumstances last updated at 2024/06/27 21:00:45 UT

Marc W. Buie, Southwest Research Institute

RECON