RECON: TNO occultation with 129746

Event between (129746) 99CE119 and star GA0680:07541275 with event index number of 2716925

Geocentric closest approach at 2029/03/06 10:56:56 UTC

J2000 position of star is 16:38:32.2 -20:39:38
Equinox of date position of star is 16:39:58.1 -20:42:25
Stellar brightness G=16.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 7 degrees from the moon. Moon is 60% illuminated.
Apparent brightness V=23.4

[RECON map]
Object is 30.5 AU from the Sun and 30.4 AU from the Earth.
Apparent velocity is 3.9 km/sec on the sky relative to the star, or, 0.6 arcsec/hr.
The 1-sigma error in the time of the event is 1507 seconds.
The 1-sigma cross-track error in the shadow position is 1442 km.
The sky-plane scale is 22025.5 km/arcsec.

The object has an absolute magnitude Hv=8.4
Diameter=128.2 km assuming a 5% albedo -- 32.7 sec chord
Diameter=52.4 km assuming a 30% albedo -- 13.4 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 129746, (2029/03/06 10:57UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.1 -26:29:39  0.9  6.14   5
23Tau Sco      16:37:42.2 -28:16:26  2.8  7.58   7
PPM 232040     16:43:36.8 -19:58:40  5.8  1.08   8
PPM 265647     16:34:09.7 -20:48:44  8.3  1.43   6
PPM 265756     16:40:19.1 -20:47:36  9.7  0.08   7
129746         16:40:15.7 -20:42:59 16.2         8
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 0.6 sigma about the mid-time.
The median site spacing is 13.6 km RECON observability=0.2 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:50:12 -25.9 Dark Up 13.1 152.7 Really Low 10:35:12 - 11:05:12 7002
Kamloops 10:45:56 -34.7 Dark Up 8.8 138.8 Really Low 10:30:56 - 11:00:56 6778
Kelowna 10:45:54 -34.7 Dark Up 9.8 139.5 Really Low 10:30:54 - 11:00:54 6758
Peachland 10:45:51 -35.0 Dark Up 9.8 139.2 Really Low 10:30:51 - 11:00:51 6749
Summerland 10:45:49 -35.0 Dark Up 9.9 139.3 Really Low 10:30:49 - 11:00:49 6744
Penticton 10:45:50 -35.0 Dark Up 10.0 139.4 Really Low 10:30:50 - 11:00:50 6742
Oliver 10:45:46 -35.3 Dark Up 10.3 139.3 Really Low 10:30:46 - 11:00:46 6727
Anarchist Mountain Observatory 10:45:46 -35.3 Dark Up 10.5 139.4 Really Low 10:30:46 - 11:00:46 6723
Okanogan 10:45:33 -35.8 Dark Up 10.8 139.1 Really Low 10:30:33 - 11:00:33 6691
Brewster 10:45:23 -36.1 Dark Up 10.9 138.9 Really Low 10:30:23 - 11:00:23 6675
Manson/Chelan 10:45:12 -36.5 Dark Up 10.9 138.5 Really Low 10:30:12 - 11:00:12 6660
Victoria 10:44:35 -37.7 Dark Up 8.9 135.8 Really Low 10:29:35 - 10:59:35 6635
Wenatchee 10:45:02 -36.9 Dark Up 11.2 138.3 Really Low 10:30:02 - 11:00:02 6635
Ellensburg 10:44:53 -37.3 Dark Up 11.4 138.0 Really Low 10:29:53 - 10:59:53 6612
Yakima 10:44:46 -37.6 Dark Up 11.6 137.9 Really Low 10:29:46 - 10:59:46 6592
PNWRO 10:45:01 -37.0 Dark Up 12.9 139.3 Really Low 10:30:01 - 11:00:01 6591
Toppenish/White Swan 10:44:41 -37.6 Dark Up 11.9 138.0 Really Low 10:29:41 - 10:59:41 6584
The Dalles 10:44:19 -38.6 Dark Up 12.0 137.2 Really Low 10:29:19 - 10:59:19 6532
Maupin 10:44:15 -38.8 Dark Up 12.4 137.2 Really Low 10:29:15 - 10:59:15 6513
Dunrhomin 10:48:08 -30.5 Dark Up 23.6 151.0 Low 10:33:08 - 11:03:08 6479
Nikitin 10:48:12 -30.6 Dark Up 23.8 151.0 Low 10:33:12 - 11:03:12 6468
CU-SBO 10:48:04 -30.7 Dark Up 23.8 150.9 Low 10:33:04 - 11:03:04 6464
Sisters 10:43:52 -39.7 Dark Up 12.7 136.6 Really Low 10:28:52 - 10:58:52 6459
Bend 10:43:49 -39.7 Dark Up 13.0 136.7 Really Low 10:28:49 - 10:58:49 6451
Oregon Observatory 10:43:48 -39.9 Dark Up 13.1 136.6 Really Low 10:28:48 - 10:58:48 6439
Chiloquin 10:43:17 -41.0 Dark Up 13.8 135.9 Really Low 10:28:17 - 10:58:17 6360
Klamath Falls 10:43:16 -41.2 Dark Up 14.1 135.9 Really Low 10:28:16 - 10:58:16 6342
Cedarville 10:43:30 -40.6 Dark Up 15.4 137.2 Really Low 10:28:30 - 10:58:30 6332
Fall River/Burney 10:43:02 -41.7 Dark Up 15.1 136.0 Really Low 10:28:02 - 10:58:02 6282
Gimple 10:42:56 -42.0 Dark Up 16.0 136.2 Really Low 10:27:56 - 10:57:56 6238
Greenville 10:42:55 -42.0 Dark Up 15.9 136.1 Really Low 10:27:55 - 10:57:55 6237
Portola 10:42:55 -41.9 Dark Up 16.4 136.5 Really Low 10:27:55 - 10:57:55 6227
Quincy 10:42:54 -42.1 Dark Up 16.1 136.1 Really Low 10:27:54 - 10:57:54 6225
Reno 10:43:08 -41.6 Dark Up 17.0 137.0 Really Low 10:28:08 - 10:58:08 6223
Carson City 10:43:03 -41.8 Dark Up 17.3 136.9 Really Low 10:28:03 - 10:58:03 6202
Yerington 10:43:09 -41.5 Dark Up 17.8 137.4 Really Low 10:28:09 - 10:58:09 6202
Gardnerville 10:43:00 -41.9 Dark Up 17.5 136.9 Really Low 10:28:00 - 10:58:00 6188
Hawthorne 10:43:14 -41.4 Dark Up 18.4 137.7 Really Low 10:28:14 - 10:58:14 6183
Lee Vining 10:42:57 -42.1 Dark Up 18.5 137.2 Really Low 10:27:57 - 10:57:57 6140
Beatty 10:43:26 -40.9 Dark Up 20.6 138.9 Low 10:28:26 - 10:58:26 6115
Bishop 10:43:02 -41.9 Dark Up 19.4 137.6 Really Low 10:28:02 - 10:58:02 6115
Patrick 10:44:03 -39.4 Dark Up 23.3 141.1 Low 10:29:03 - 10:59:03 6070
Laughlin/Bullhead City 10:43:47 -40.1 Dark Up 23.1 140.4 Low 10:28:47 - 10:58:47 6041
Lake Havasu City 10:43:45 -40.2 Dark Up 23.8 140.4 Low 10:28:45 - 10:58:45 6002
George/Scottsdale 10:44:27 -38.5 Dark Up 25.8 142.5 Low 10:29:27 - 10:59:27 5991
Idyllwild 10:42:44 -42.5 Dark Up 22.9 138.0 Low 10:27:44 - 10:57:44 5909
Wildwood 10:42:11 -43.8 Dark Up 21.5 136.5 Low 10:27:11 - 10:57:11 5896
Calipatria 10:43:03 -41.9 Dark Up 24.1 138.9 Low 10:28:03 - 10:58:03 5888
Yuma 10:43:15 -41.3 Dark Up 24.9 139.5 Low 10:28:15 - 10:58:15 5874

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 129746, (2029/03/06 10:57UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  6.14   5
23Tau Sco      16:35:52.9 -28:12:58  2.8  7.58   7
PPM 232040     16:41:53.8 -19:55:27  5.8  1.08   8
PPM 265647     16:32:26.2 -20:45:08  8.3  1.43   6
PPM 265756     16:38:35.5 -20:44:15  9.7  0.08   7
129746         16:38:32.2 -20:39:38 16.2         7
Positions are for J2000

Event circumstances last updated at 2024/03/21 22:36:29 UT

Marc W. Buie, Southwest Research Institute

RECON