RECON: TNO occultation with 523770

Event between (523770) 14XO40 and star GA0860:05301576 with event index number of 2784854

Geocentric closest approach at 2029/05/25 08:54:03 UTC

J2000 position of star is 16:52:04.2 -03:23:37
Equinox of date position of star is 16:53:21.4 -03:25:59
Stellar brightness G=15.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 47 degrees from the moon. Moon is 92% illuminated.
Apparent brightness V=20.1

[RECON map]
Object is 16.6 AU from the Sun and 15.6 AU from the Earth.
Apparent velocity is 20.7 km/sec on the sky relative to the star, or, 6.6 arcsec/hr.
The 1-sigma error in the time of the event is 165 seconds.
The 1-sigma cross-track error in the shadow position is 1617 km.
The sky-plane scale is 11316.1 km/arcsec.

The object has an absolute magnitude Hv=7.9
Diameter=153.5 km assuming a 5% albedo -- 7.5 sec chord
Diameter=62.7 km assuming a 30% albedo -- 3.1 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 523770, (2029/05/25 08:57UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.9 -26:29:40  0.9 23.67  39
13Zet Oph      16:38:46.8 -10:37:27  2.6  8.07  41
23 Oph         16:56:10.1 -06:11:59  5.3  2.83  47
PPM 200078     16:52:40.4 -03:18:09  8.5  0.27  47
PPM 200107     16:54:06.7 -03:37:18  9.8  0.22  47
523770         16:53:36.9 -03:26:27 15.8        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 5.0 sigma about the mid-time.
The median site spacing is 14.3 km RECON observability=1.0 and success probability=5.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:54:36 -12.8 AT Up 32.5 201.4 Up 08:40:21 - 09:08:50 4582
Kamloops 08:55:17 -17.2 AT Up 35.8 184.5 Up 08:41:03 - 09:09:32 4181
Kelowna 08:55:14 -17.9 AT Up 36.6 185.7 Up 08:40:59 - 09:09:28 4153
Peachland 08:55:14 -18.0 Dark Up 36.7 185.3 Up 08:41:00 - 09:09:29 4140
Summerland 08:55:14 -18.1 Dark Up 36.9 185.4 Up 08:40:59 - 09:09:28 4133
Penticton 08:55:13 -18.2 Dark Up 36.9 185.6 Up 08:40:59 - 09:09:28 4131
Oliver 08:55:13 -18.5 Dark Up 37.3 185.6 Up 08:40:59 - 09:09:28 4110
Anarchist Mountain Observatory 08:55:11 -18.7 Dark Up 37.4 185.8 Up 08:40:57 - 09:09:26 4104
Okanogan 08:55:11 -19.3 Dark Up 38.1 185.6 Up 08:40:57 - 09:09:26 4058
Brewster 08:55:11 -19.6 Dark Up 38.4 185.4 Up 08:40:57 - 09:09:26 4036
Manson/Chelan 08:55:12 -19.9 Dark Up 38.6 184.9 Up 08:40:58 - 09:09:27 4014
Wenatchee 08:55:13 -20.4 Dark Up 39.1 184.7 Up 08:40:58 - 09:09:27 3979
Victoria 08:55:25 -19.7 Dark Up 38.1 180.8 Up 08:41:11 - 09:09:40 3973
Ellensburg 08:55:13 -20.8 Dark Up 39.5 184.5 Up 08:40:58 - 09:09:27 3947
PNWRO 08:55:06 -21.5 Dark Up 40.4 186.7 Up 08:40:52 - 09:09:21 3924
Yakima 08:55:13 -21.2 Dark Up 39.9 184.5 Up 08:40:58 - 09:09:27 3920
Toppenish/White Swan 08:55:12 -21.4 Dark Up 40.1 184.7 Up 08:40:57 - 09:09:26 3910
Dunrhomin 08:54:06 -23.0 Dark Up 43.2 205.8 Up 08:39:51 - 09:08:20 3896
Nikitin 08:54:06 -23.2 Dark Up 43.3 205.9 Up 08:39:51 - 09:08:20 3882
CU-SBO 08:54:06 -23.2 Dark Up 43.4 205.8 Up 08:39:51 - 09:08:20 3876
The Dalles 08:55:13 -22.3 Dark Up 40.9 183.7 Up 08:40:59 - 09:09:28 3837
Maupin 08:55:12 -22.7 Dark Up 41.4 183.9 Up 08:40:58 - 09:09:27 3812
Sisters 08:55:13 -23.6 Dark Up 42.3 183.3 Up 08:40:59 - 09:09:28 3739
Bend 08:55:12 -23.8 Dark Up 42.5 183.7 Up 08:40:57 - 09:09:26 3729
Oregon Observatory 08:55:12 -24.0 Dark Up 42.7 183.5 Up 08:40:57 - 09:09:26 3714
Chiloquin 08:55:12 -25.3 Dark Up 44.0 183.0 Up 08:40:58 - 09:09:27 3609
Klamath Falls 08:55:11 -25.7 Dark Up 44.3 183.1 Up 08:40:57 - 09:09:26 3586
Cedarville 08:55:04 -26.0 Dark Up 44.9 185.4 Up 08:40:49 - 09:09:18 3581
Fall River/Burney 08:55:08 -26.7 Dark Up 45.5 183.7 Up 08:40:54 - 09:09:23 3511
Gimple 08:55:04 -27.5 Dark Up 46.4 184.5 Up 08:40:50 - 09:09:19 3459
Greenville 08:55:04 -27.5 Dark Up 46.4 184.4 Up 08:40:50 - 09:09:19 3456
Portola 08:55:03 -27.8 Dark Up 46.7 185.1 Up 08:40:48 - 09:09:17 3446
Reno 08:55:00 -27.9 Dark Up 46.9 186.1 Up 08:40:46 - 09:09:15 3444
Quincy 08:55:04 -27.7 Dark Up 46.6 184.4 Up 08:40:50 - 09:09:19 3441
Yerington 08:54:57 -28.3 Dark Up 47.4 187.1 Up 08:40:42 - 09:09:11 3422
Carson City 08:54:59 -28.2 Dark Up 47.2 186.1 Up 08:40:45 - 09:09:14 3418
Hawthorne 08:54:53 -28.6 Dark Up 47.8 187.9 Up 08:40:39 - 09:09:08 3402
Gardnerville 08:54:59 -28.5 Dark Up 47.5 186.2 Up 08:40:44 - 09:09:13 3401
Lee Vining 08:54:54 -29.3 Dark Up 48.4 187.3 Up 08:40:40 - 09:09:09 3345
Beatty 08:54:43 -29.7 Dark Up 49.2 190.9 Up 08:40:29 - 09:08:58 3332
Bishop 08:54:51 -29.7 Dark Up 48.9 188.4 Up 08:40:36 - 09:09:05 3320
Patrick 08:54:29 -30.3 Dark Up 50.1 195.6 Up 08:40:15 - 09:08:44 3301
Laughlin/Bullhead City 08:54:32 -30.7 Dark Up 50.5 194.6 Up 08:40:17 - 09:08:46 3261
George/Scottsdale 08:54:18 -31.2 Dark Up 51.2 199.2 Up 08:40:03 - 09:08:32 3227
Lake Havasu City 08:54:29 -31.3 Dark Up 51.1 195.2 Up 08:40:15 - 09:08:44 3215
Idyllwild 08:54:38 -32.7 Dark Up 52.3 191.7 Up 08:40:23 - 09:08:52 3083
Calipatria 08:54:31 -32.9 Dark Up 52.6 193.8 Up 08:40:17 - 09:08:46 3069
Yuma 08:54:27 -33.1 Dark Up 52.9 195.3 Up 08:40:13 - 09:08:42 3061
Wildwood 08:54:46 -32.9 Dark Up 52.2 188.7 Up 08:40:32 - 09:09:01 3054

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 523770, (2029/05/25 08:57UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 23.67  39
13Zet Oph      16:37:09.6 -10:34:01  2.6  8.07  41
23 Oph         16:54:35.6 -06:09:15  5.3  2.83  47
PPM 200078     16:51:07.9 -03:15:17  8.5  0.27  47
PPM 200107     16:52:33.9 -03:34:29  9.8  0.22  47
523770         16:52:04.2 -03:23:37 15.8        47
Positions are for J2000

Event circumstances last updated at 2024/06/27 21:00:09 UT

Marc W. Buie, Southwest Research Institute

RECON