RECON: TNO occultation with 469708

Event between (469708) 05GE187 and star GA0840:13005396 with event index number of 2798447

Geocentric closest approach at 2029/07/13 07:29:13 UTC

J2000 position of star is 18:49:02.3 -04:20:06
Equinox of date position of star is 18:50:15.1 -04:18:27
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 148 degrees from the moon. Moon is 3% illuminated.
Apparent brightness V=21.9

[RECON map]
Object is 26.6 AU from the Sun and 25.7 AU from the Earth.
Apparent velocity is 22.4 km/sec on the sky relative to the star, or, 4.3 arcsec/hr.
The 1-sigma error in the time of the event is 173 seconds.
The 1-sigma cross-track error in the shadow position is 1289 km.
The sky-plane scale is 18610.7 km/arcsec.

The object has an absolute magnitude Hv=7.6
Diameter=184.5 km assuming a 5% albedo -- 8.2 sec chord
Diameter=75.3 km assuming a 30% albedo -- 3.4 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 469708, (2029/07/13 07:29UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:13.4 -26:29:41  0.9 40.01 117
60Bet Oph      17:44:56.0 +04:33:25  2.8 18.64 129
Bet Sct        18:48:44.5 -04:42:50  4.2  0.62 147
PPM 202191     18:51:42.1 -03:35:13  7.0  0.76 148
PPM 202178     18:51:23.4 -04:17:31  9.3  0.20 148
469708         18:50:36.0 -04:17:58 16.7       148
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 23.2 km RECON observability=1.0 and success probability=0.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 07:28:41 -17.1 AT Down 35.0 181.2 Up 07:13:47 - 07:43:35 7091
Sleaford 07:27:58 -16.0 AT Down 32.1 198.1 Up 07:13:04 - 07:42:52 7044
Kelowna 07:28:39 -18.0 AT Down 35.8 182.3 Up 07:13:45 - 07:43:33 7031
Peachland 07:28:40 -18.0 Dark Down 35.9 182.0 Up 07:13:46 - 07:43:34 7027
Summerland 07:28:39 -18.2 Dark Down 36.0 182.1 Up 07:13:45 - 07:43:33 7016
Penticton 07:28:40 -18.3 Dark Down 36.1 182.2 Up 07:13:46 - 07:43:34 7010
Oliver 07:28:39 -18.6 Dark Down 36.5 182.2 Up 07:13:45 - 07:43:33 6987
Victoria 07:28:52 -18.8 Dark Down 37.1 177.5 Up 07:13:58 - 07:43:46 6979
Anarchist Mountain Observatory 07:28:39 -18.8 Dark Down 36.6 182.5 Up 07:13:45 - 07:43:33 6975
Okanogan 07:28:39 -19.4 Dark Down 37.3 182.2 Up 07:13:45 - 07:43:33 6933
Brewster 07:28:40 -19.7 Dark Down 37.6 182.0 Up 07:13:46 - 07:43:34 6917
Manson/Chelan 07:28:42 -19.8 Dark Down 37.8 181.5 Up 07:13:48 - 07:43:36 6906
Wenatchee 07:28:43 -20.3 Dark Down 38.2 181.3 Up 07:13:49 - 07:43:37 6876
Ellensburg 07:28:43 -20.7 Dark Down 38.7 181.1 Up 07:13:49 - 07:43:37 6849
Yakima 07:28:44 -21.1 Dark Down 39.1 181.1 Up 07:13:50 - 07:43:38 6821
Toppenish/White Swan 07:28:43 -21.3 Dark Down 39.3 181.3 Up 07:13:49 - 07:43:37 6804
PNWRO 07:28:38 -21.8 Dark Down 39.6 183.2 Up 07:13:44 - 07:43:32 6764
The Dalles 07:28:46 -22.0 Dark Down 40.1 180.3 Up 07:13:52 - 07:43:40 6757
Maupin 07:28:46 -22.4 Dark Down 40.5 180.4 Up 07:13:52 - 07:43:40 6727
Sisters 07:28:48 -23.2 Dark Down 41.4 179.8 Up 07:13:54 - 07:43:42 6669
Bend 07:28:47 -23.5 Dark Down 41.6 180.1 Up 07:13:53 - 07:43:41 6649
Oregon Observatory 07:28:48 -23.6 Dark Down 41.8 179.9 Up 07:13:54 - 07:43:42 6637
Chiloquin 07:28:50 -24.9 Dark Down 43.1 179.4 Up 07:13:56 - 07:43:44 6544
Klamath Falls 07:28:50 -25.2 Dark Down 43.4 179.5 Up 07:13:56 - 07:43:44 6517
Cedarville 07:28:44 -26.1 Dark Down 44.1 181.7 Up 07:13:50 - 07:43:38 6447
Fall River/Burney 07:28:49 -26.4 Dark Down 44.6 180.0 Up 07:13:55 - 07:43:43 6423
Greenville 07:28:48 -27.4 Dark Down 45.5 180.6 Up 07:13:54 - 07:43:42 6347
Gimple 07:28:47 -27.4 Dark Down 45.5 180.8 Up 07:13:53 - 07:43:41 6346
Quincy 07:28:48 -27.6 Dark Down 45.7 180.7 Up 07:13:54 - 07:43:42 6331
Portola 07:28:46 -27.8 Dark Down 45.8 181.3 Up 07:13:52 - 07:43:40 6316
Reno 07:28:44 -28.1 Dark Down 46.1 182.3 Up 07:13:50 - 07:43:38 6288
Carson City 07:28:44 -28.5 Dark Down 46.5 182.3 Up 07:13:50 - 07:43:38 6259
Gardnerville 07:28:44 -28.7 Dark Down 46.7 182.4 Up 07:13:50 - 07:43:38 6239
Yerington 07:28:41 -28.7 Dark Down 46.6 183.2 Up 07:13:47 - 07:43:35 6236
Hawthorne 07:28:39 -29.3 Dark Down 47.1 184.0 Up 07:13:45 - 07:43:33 6193
Dunrhomin 07:27:50 -27.8 Dark Down 43.1 202.1 Up 07:12:56 - 07:42:44 6173
Nikitin 07:27:50 -28.0 Dark Down 43.2 202.1 Up 07:12:56 - 07:42:44 6159
CU-SBO 07:27:50 -28.0 Dark Down 43.3 202.1 Up 07:12:56 - 07:42:44 6154
Lee Vining 07:28:41 -29.8 Dark Down 47.7 183.3 Up 07:13:47 - 07:43:35 6153
Bishop 07:28:39 -30.4 Dark Down 48.2 184.5 Up 07:13:45 - 07:43:33 6095
Beatty 07:28:33 -31.1 Dark Down 48.5 186.9 Up 07:13:39 - 07:43:27 6037
Patrick 07:28:22 -32.7 Dark Down 49.6 191.5 Up 07:13:28 - 07:43:16 5876
Laughlin/Bullhead City 07:28:25 -32.9 Dark Down 50.0 190.5 Up 07:13:31 - 07:43:19 5863
Wildwood 07:28:41 -33.6 Dark Down 51.5 184.4 Up 07:13:47 - 07:43:35 5820
Lake Havasu City 07:28:24 -33.6 Dark Down 50.6 191.0 Up 07:13:30 - 07:43:18 5802
Idyllwild 07:28:34 -34.2 Dark Down 51.7 187.5 Up 07:13:40 - 07:43:28 5766
George/Scottsdale 07:28:13 -34.5 Dark Down 50.9 195.0 Up 07:13:19 - 07:43:07 5703
Calipatria 07:28:29 -34.9 Dark Down 52.1 189.5 Up 07:13:35 - 07:43:23 5697
Yuma 07:28:26 -35.4 Dark Down 52.4 191.0 Up 07:13:32 - 07:43:20 5648

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 469708, (2029/07/13 07:29UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 40.01 117
60Bet Oph      17:43:28.3 +04:34:06  2.8 18.64 129
Bet Sct        18:47:10.5 -04:44:53  4.2  0.62 147
PPM 202191     18:50:08.9 -03:37:23  7.0  0.76 148
PPM 202178     18:49:49.7 -04:19:41  9.3  0.20 148
469708         18:49:02.3 -04:20:06 16.7       148
Positions are for J2000

Event circumstances last updated at 2022/12/15 08:34:40 UT

Marc W. Buie, Southwest Research Institute

RECON