RECON: TNO occultation with 500877

Event between (500877) 13JE64 and star GA0700:13633559 with event index number of 2778203

Geocentric closest approach at 2029/06/12 06:33:43 UTC

J2000 position of star is 17:35:03.4 -19:56:41
Equinox of date position of star is 17:36:30.6 -19:57:32
Stellar brightness G=0.0, use SENSEUP=2 with the MallinCam and and exposure time of 125 milli-seconds with the QHY174 camera.
Star is 175 degrees from the moon. Moon is 0% 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 24.4 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 731 seconds.
The 1-sigma cross-track error in the shadow position is 4559 km.
The sky-plane scale is 27986.5 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, (2029/06/12 06:34UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:13.1 -26:29:41  0.9 16.40 166
35Eta Oph      17:12:04.1 -15:45:33  2.6  7.23 170
PPM 267109     17:40:31.1 -21:55:38  6.4  2.15 177
PPM 233364     17:39:53.4 -19:59:22  8.5  0.73 175
PPM 233293     17:37:18.0 -19:54:49  9.1  0.13 175
500877         17:36:48.2 -19:57:43  0.0       175
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 17.6 km RECON observability=0.7 and success probability=4.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 06:34:18 -14.5 AT Down 17.4 169.9 Really Low 06:19:18 - 06:49:18 -140
Kamloops 06:34:53 -13.7 AT Down 16.1 156.0 Really Low 06:19:53 - 06:49:53 -338
Kelowna 06:34:53 -14.7 AT Down 17.1 156.8 Really Low 06:19:53 - 06:49:53 -350
Peachland 06:34:53 -14.7 AT Down 17.1 156.5 Really Low 06:19:53 - 06:49:53 -364
Penticton 06:34:53 -15.0 AT Down 17.4 156.6 Really Low 06:19:53 - 06:49:53 -369
Summerland 06:34:53 -14.9 AT Down 17.3 156.5 Really Low 06:19:53 - 06:49:53 -369
Oliver 06:34:53 -15.3 AT Down 17.7 156.6 Really Low 06:19:53 - 06:49:53 -387
Anarchist Mountain Observatory 06:34:53 -15.5 AT Down 17.9 156.8 Really Low 06:19:53 - 06:49:53 -389
Okanogan 06:34:53 -16.1 AT Down 18.5 156.5 Really Low 06:19:53 - 06:49:53 -430
Victoria 06:35:09 -15.0 AT Down 17.3 152.9 Really Low 06:20:09 - 06:50:09 -441
Brewster 06:34:53 -16.3 AT Down 18.7 156.2 Really Low 06:19:53 - 06:49:53 -452
Ellensburg 06:35:03 -17.1 AT Down 19.5 155.4 Really Low 06:20:03 - 06:50:03 -475
Manson/Chelan 06:34:53 -16.4 AT Down 18.7 155.9 Really Low 06:19:53 - 06:49:53 -478
Yakima 06:35:04 -17.5 AT Down 19.8 155.3 Really Low 06:20:04 - 06:50:04 -494
Toppenish/White Swan 06:35:04 -17.8 AT Down 20.1 155.5 Low 06:20:04 - 06:50:04 -502
Wenatchee 06:34:53 -16.8 AT Down 19.1 155.6 Really Low 06:19:53 - 06:49:53 -512
PNWRO 06:34:53 -18.4 Dark Down 20.8 156.8 Low 06:19:53 - 06:49:53 -535
The Dalles 06:35:07 -18.3 Dark Down 20.5 154.6 Low 06:20:07 - 06:50:07 -550
Maupin 06:35:07 -18.7 Dark Down 21.0 154.6 Low 06:20:07 - 06:50:07 -569
Sisters 06:35:10 -19.4 Dark Down 21.6 154.0 Low 06:20:10 - 06:50:10 -620
Bend 06:35:10 -19.7 Dark Down 21.9 154.2 Low 06:20:10 - 06:50:10 -628
Oregon Observatory 06:35:10 -19.8 Dark Down 22.0 154.1 Low 06:20:10 - 06:50:10 -639
Dunrhomin 06:34:22 -26.3 Dark Down 29.2 169.8 Low 06:19:22 - 06:49:22 -674
Nikitin 06:34:22 -26.5 Dark Down 29.3 169.8 Low 06:19:22 - 06:49:22 -684
CU-SBO 06:34:22 -26.5 Dark Down 29.4 169.7 Low 06:19:22 - 06:49:22 -688
Chiloquin 06:35:13 -20.9 Dark Down 23.1 153.4 Low 06:20:13 - 06:50:13 -715
Klamath Falls 06:35:13 -21.3 Dark Down 23.4 153.5 Low 06:20:13 - 06:50:13 -732
Cedarville 06:35:09 -22.3 Dark Down 24.5 154.9 Low 06:20:09 - 06:50:09 -749
Fall River/Burney 06:35:14 -22.5 Dark Down 24.6 153.6 Low 06:20:14 - 06:50:14 -793
Gimple 06:35:13 -23.4 Dark Down 25.6 153.9 Low 06:20:13 - 06:50:13 -838
Greenville 06:35:14 -23.4 Dark Down 25.5 153.8 Low 06:20:14 - 06:50:14 -839
Quincy 06:35:14 -23.6 Dark Down 25.7 153.8 Low 06:20:14 - 06:50:14 -851
Portola 06:35:12 -23.9 Dark Down 26.0 154.2 Low 06:20:12 - 06:50:12 -851
Reno 06:35:11 -24.3 Dark Down 26.5 154.8 Low 06:20:11 - 06:50:11 -858
Carson City 06:35:11 -24.6 Dark Down 26.8 154.8 Low 06:20:11 - 06:50:11 -879
Yerington 06:35:09 -25.0 Dark Down 27.2 155.3 Low 06:20:09 - 06:50:09 -883
Gardnerville 06:35:11 -24.9 Dark Down 27.0 154.8 Low 06:20:11 - 06:50:11 -893
Hawthorne 06:35:08 -25.6 Dark Down 27.8 155.8 Low 06:20:08 - 06:50:08 -904
Lee Vining 06:35:10 -26.0 Dark Down 28.1 155.2 Low 06:20:10 - 06:50:10 -944
Bishop 06:35:08 -26.7 Dark Down 28.9 155.7 Low 06:20:08 - 06:50:08 -972
Beatty 06:35:03 -27.6 Dark Down 29.8 157.3 Low 06:20:03 - 06:50:03 -980
Patrick 06:34:53 -29.7 Dark Down 32.1 159.9 Up 06:19:53 - 06:49:53 -1042
Laughlin/Bullhead City 06:34:53 -29.8 Dark Down 32.1 159.1 Up 06:19:53 - 06:49:53 -1072
Lake Havasu City 06:34:53 -30.5 Dark Down 32.8 159.2 Up 06:19:53 - 06:49:53 -1112
George/Scottsdale 06:34:49 -31.8 Dark Down 34.2 161.7 Up 06:19:49 - 06:49:49 -1131
Idyllwild 06:35:06 -30.6 Dark Down 32.8 156.6 Up 06:20:06 - 06:50:06 -1185
Wildwood 06:35:12 -29.7 Dark Down 31.8 154.7 Up 06:20:12 - 06:50:12 -1187
Calipatria 06:34:53 -31.5 Dark Down 33.7 157.6 Up 06:19:53 - 06:49:53 -1237
Yuma 06:34:53 -32.1 Dark Down 34.4 158.5 Up 06:19:53 - 06:49:53 -1244

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, (2029/06/12 06:34UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 16.40 166
35Eta Oph      17:10:22.7 -15:43:29  2.6  7.23 170
PPM 267109     17:38:44.8 -21:54:46  6.4  2.15 177
PPM 233364     17:38:08.6 -19:58:28  8.5  0.73 175
PPM 233293     17:35:33.3 -19:53:49  9.1  0.13 175
500877         17:35:03.4 -19:56:41  0.0       175
Positions are for J2000

Event circumstances last updated at 2024/06/27 21:00:58 UT

Marc W. Buie, Southwest Research Institute

RECON