RECON: TNO occultation with 500877

Event between (500877) 13JE64 and star GA0700:13283337 with event index number of 2778220

Geocentric closest approach at 2029/06/22 04:44:00 UTC

J2000 position of star is 17:34:10.6 -19:56:30
Equinox of date position of star is 17:35:37.7 -19:57:23
Stellar brightness G=14.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 46 degrees from the moon. Moon is 80% 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 736 seconds.
The 1-sigma cross-track error in the shadow position is 4016 km.
The sky-plane scale is 27994.9 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, (2029/06/22 04:44UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:13.2 -26:29:41  0.9 16.22  31
35Eta Oph      17:12:04.2 -15:45:33  2.6  7.06  41
PPM 267109     17:40:31.2 -21:55:38  6.4  2.24  47
PPM 233364     17:39:53.5 -19:59:22  8.5  0.93  47
PPM 267019     17:36:08.6 -20:07:15  9.7  0.17  46
500877         17:35:55.4 -19:57:34 14.8        47
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 13.7 km RECON observability=0.2 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 04:45:09 -8.5 NT Up 14.1 153.4 Really Low 04:30:09 - 05:00:09 1807
Kamloops 04:45:54 -4.1 CT Up 10.4 140.5 Really Low 04:30:54 - 05:00:54 1537
Kelowna 04:45:54 -5.0 CT Up 11.4 141.1 Really Low 04:30:54 - 05:00:54 1515
Peachland 04:45:55 -5.0 CT Up 11.4 140.9 Really Low 04:30:55 - 05:00:55 1505
Summerland 04:45:55 -5.1 CT Up 11.5 140.9 Really Low 04:30:55 - 05:00:55 1500
Penticton 04:45:55 -5.2 CT Up 11.6 141.0 Really Low 04:30:55 - 05:00:55 1498
Oliver 04:45:56 -5.5 CT Up 11.9 141.0 Really Low 04:30:56 - 05:00:56 1482
Anarchist Mountain Observatory 04:45:56 -5.7 CT Up 12.1 141.1 Really Low 04:30:56 - 05:00:56 1478
Okanogan 04:45:58 -6.1 NT Up 12.5 140.8 Really Low 04:30:58 - 05:00:58 1442
Brewster 04:45:58 -6.2 NT Up 12.6 140.6 Really Low 04:30:58 - 05:00:58 1426
Manson/Chelan 04:46:00 -6.2 NT Up 12.6 140.3 Really Low 04:31:00 - 05:01:00 1409
Victoria 04:46:05 -4.2 CT Up 10.7 137.6 Really Low 04:31:05 - 05:01:05 1383
Wenatchee 04:46:01 -6.4 NT Up 12.9 140.1 Really Low 04:31:01 - 05:01:01 1383
Ellensburg 04:46:03 -6.6 NT Up 13.2 139.8 Really Low 04:31:03 - 05:01:03 1358
Yakima 04:46:03 -6.9 NT Up 13.5 139.8 Really Low 04:31:03 - 05:01:03 1337
PNWRO 04:46:01 -8.1 NT Up 14.6 141.1 Really Low 04:31:01 - 05:01:01 1336
Toppenish/White Swan 04:46:04 -7.1 NT Up 13.7 139.9 Really Low 04:31:04 - 05:01:04 1328
The Dalles 04:46:07 -7.3 NT Up 13.9 139.1 Really Low 04:31:07 - 05:01:07 1273
Maupin 04:46:08 -7.7 NT Up 14.3 139.1 Really Low 04:31:08 - 05:01:08 1253
Dunrhomin 04:45:33 -18.8 Dark Up 24.9 152.3 Low 04:30:33 - 05:00:33 1236
Nikitin 04:45:34 -18.9 Dark Up 25.0 152.2 Low 04:30:34 - 05:00:34 1225
CU-SBO 04:45:34 -18.9 Dark Up 25.1 152.1 Low 04:30:34 - 05:00:34 1220
Sisters 04:46:11 -8.0 NT Up 14.7 138.6 Really Low 04:31:11 - 05:01:11 1196
Bend 04:46:11 -8.3 NT Up 15.0 138.7 Really Low 04:31:11 - 05:01:11 1187
Oregon Observatory 04:46:12 -8.4 NT Up 15.1 138.6 Really Low 04:31:12 - 05:01:12 1175
Chiloquin 04:46:15 -9.1 NT Up 15.9 138.0 Really Low 04:31:15 - 05:01:15 1092
Klamath Falls 04:46:16 -9.4 NT Up 16.2 138.0 Really Low 04:31:16 - 05:01:16 1073
Cedarville 04:46:13 -10.7 NT Up 17.5 139.2 Really Low 04:31:13 - 05:01:13 1063
Fall River/Burney 04:46:18 -10.4 NT Up 17.3 138.1 Really Low 04:31:18 - 05:01:18 1010
Gimple 04:46:18 -11.3 NT Up 18.2 138.4 Really Low 04:31:18 - 05:01:18 965
Greenville 04:46:18 -11.3 NT Up 18.2 138.3 Really Low 04:31:18 - 05:01:18 963
Portola 04:46:18 -11.8 NT Up 18.7 138.6 Really Low 04:31:18 - 05:01:18 953
Quincy 04:46:18 -11.4 NT Up 18.3 138.2 Really Low 04:31:18 - 05:01:18 951
Reno 04:46:17 -12.3 AT Up 19.2 139.1 Really Low 04:31:17 - 05:01:17 949
Yerington 04:46:16 -13.1 AT Up 19.9 139.5 Really Low 04:31:16 - 05:01:16 927
Carson City 04:46:17 -12.6 AT Up 19.5 139.0 Really Low 04:31:17 - 05:01:17 927
Gardnerville 04:46:17 -12.8 AT Up 19.7 139.0 Really Low 04:31:17 - 05:01:17 912
Hawthorne 04:46:15 -13.7 AT Up 20.6 139.9 Low 04:31:15 - 05:01:15 908
Lee Vining 04:46:18 -13.8 AT Up 20.8 139.3 Low 04:31:18 - 05:01:18 862
Beatty 04:46:13 -15.9 AT Up 22.8 141.0 Low 04:31:13 - 05:01:13 838
Bishop 04:46:16 -14.6 AT Up 21.6 139.8 Low 04:31:16 - 05:01:16 837
Patrick 04:46:07 -18.5 Dark Up 25.4 143.1 Low 04:31:07 - 05:01:07 794
Laughlin/Bullhead City 04:46:09 -18.3 Dark Up 25.2 142.4 Low 04:31:09 - 05:01:09 763
Lake Havasu City 04:46:10 -19.0 Dark Up 25.9 142.5 Low 04:31:10 - 05:01:10 722
George/Scottsdale 04:46:03 -20.9 Dark Up 27.7 144.4 Low 04:31:03 - 05:01:03 714
Idyllwild 04:46:18 -18.2 Dark Up 25.2 140.2 Low 04:31:18 - 05:01:18 624
Wildwood 04:46:23 -16.9 AT Up 24.0 138.7 Low 04:31:23 - 05:01:23 611
Calipatria 04:46:15 -19.3 Dark Up 26.3 141.0 Low 04:31:15 - 05:01:15 603
Yuma 04:46:13 -20.2 Dark Up 27.1 141.7 Low 04:31:13 - 05:01:13 590

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, (2029/06/22 04:44UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 16.22  31
35Eta Oph      17:10:22.7 -15:43:29  2.6  7.06  41
PPM 267109     17:38:44.8 -21:54:46  6.4  2.24  47
PPM 233364     17:38:08.6 -19:58:28  8.5  0.93  47
PPM 267019     17:34:23.6 -20:06:11  9.7  0.17  46
500877         17:34:10.6 -19:56:30 14.8        46
Positions are for J2000

Event circumstances last updated at 2024/06/27 21:02:39 UT

Marc W. Buie, Southwest Research Institute

RECON