RECON: TNO occultation with 535024

Event between (535024) 14WR509 and star GA1200:00936343 with event index number of 2666636

Geocentric closest approach at 2028/12/29 10:02:05 UTC

J2000 position of star is 04:29:59.2 +31:48:40
Equinox of date position of star is 04:31:25.3 +31:51:31
Stellar brightness G=14.5, 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 94% illuminated.
TNO apparent brightness V=21.8

[RECON map]
TNO is 27.8 AU from the Sun and 26.9 AU from the Earth.
The TNO is moving 21.2 km/sec on the sky relative to the star, or, 3.9 arcsec/hr.
The 1-sigma error in the time of the event is 200 seconds.
The 1-sigma cross-track error in the shadow position is 3149 km.
The sky-plane scale is 19509.3 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 9.8 sec chord
Diameter=85.3 km assuming a 30% albedo -- 4.0 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 535024, (2028/12/29 10:01UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:35.3 +16:33:56  0.8 15.36   8
3Iot Aur       04:58:53.2 +33:12:33  2.7  5.85  10
PPM 069458     04:32:30.4 +32:31:07  6.2  0.66   8
PPM 069491     04:34:44.4 +31:50:41  8.5  0.62   7
PPM 069456     04:32:20.4 +31:39:04  9.5  0.25   7
PPM 069447     04:31:59.2 +32:01:38 10.8  0.16   7
535024         04:31:50.6 +31:52:20 14.5         7
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 4.5 sigma about the mid-time.
The median site spacing is 20.8 km RECON observability=1.0 and success probability=6.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 09:58:42 -46.3 Dark Up 33.7 280.1 Up 09:43:42 - 10:13:42 7750
Kamloops 09:58:59 -54.6 Dark Up 42.4 270.6 Up 09:43:59 - 10:13:59 7200
Kelowna 09:58:55 -54.7 Dark Up 41.9 272.0 Up 09:43:55 - 10:13:55 7150
Peachland 09:58:55 -54.9 Dark Up 42.0 271.9 Up 09:43:55 - 10:13:55 7131
Summerland 09:58:54 -54.9 Dark Up 42.0 272.1 Up 09:43:54 - 10:13:54 7120
Penticton 09:58:54 -54.9 Dark Up 41.9 272.2 Up 09:43:54 - 10:13:54 7117
Oliver 09:58:53 -55.1 Dark Up 41.9 272.6 Up 09:43:53 - 10:13:53 7084
Anarchist Mountain Observatory 09:58:53 -55.1 Dark Up 41.8 272.9 Up 09:43:53 - 10:13:53 7074
Tonasket 09:58:52 -55.3 Dark Up 41.8 273.1 Up 09:43:52 - 10:13:52 7042
Okanogan 09:58:51 -55.6 Dark Up 41.9 273.3 Up 09:43:51 - 10:13:51 7007
Brewster 09:58:51 -55.9 Dark Up 42.0 273.4 Up 09:43:51 - 10:13:51 6975
Manson/Chelan 09:58:50 -56.2 Dark Up 42.2 273.3 Up 09:43:50 - 10:13:50 6945
Victoria 09:59:00 -57.5 Dark Up 44.4 270.4 Up 09:44:00 - 10:14:00 6916
Wenatchee 09:58:50 -56.6 Dark Up 42.3 273.6 Up 09:43:50 - 10:13:50 6895
Ellensburg 09:58:49 -57.0 Dark Up 42.4 273.8 Up 09:43:49 - 10:13:49 6850
Yakima 09:58:48 -57.2 Dark Up 42.4 274.2 Up 09:43:48 - 10:13:48 6810
PNWRO 09:58:43 -56.6 Dark Up 41.2 275.8 Up 09:43:43 - 10:13:43 6804
Toppenish/White Swan 09:58:47 -57.3 Dark Up 42.3 274.5 Up 09:43:47 - 10:13:47 6795
Dunrhomin 09:58:05 -49.5 Dark Up 30.4 287.7 Up 09:43:05 - 10:13:05 6749
Goldendale 09:58:46 -57.8 Dark Up 42.6 274.7 Up 09:43:46 - 10:13:46 6729
CU-SBO 09:58:04 -49.7 Dark Up 30.4 287.8 Up 09:43:04 - 10:13:04 6722
The Dalles 09:58:47 -58.2 Dark Up 42.8 274.7 Up 09:43:47 - 10:13:47 6697
Maupin 09:58:46 -58.3 Dark Up 42.7 275.1 Up 09:43:46 - 10:13:46 6660
Sisters 09:58:44 -59.1 Dark Up 43.0 275.6 Up 09:43:44 - 10:13:44 6560
Bend 09:58:43 -59.1 Dark Up 42.7 276.0 Up 09:43:43 - 10:13:43 6544
Oregon Observatory 09:58:43 -59.3 Dark Up 42.8 276.1 Up 09:43:43 - 10:13:43 6523
North Lake 09:58:40 -59.3 Dark Up 42.4 277.0 Up 09:43:40 - 10:13:40 6477
Lakeview 09:58:36 -59.5 Dark Up 41.8 278.2 Up 09:43:36 - 10:13:36 6391
Chiloquin 09:58:41 -60.2 Dark Up 43.0 277.0 Up 09:43:41 - 10:13:41 6382
Klamath Falls 09:58:39 -60.4 Dark Up 42.9 277.4 Up 09:43:39 - 10:13:39 6350
Cedarville 09:58:34 -59.7 Dark Up 41.6 278.9 Up 09:43:34 - 10:13:34 6332
Fall River/Burney 09:58:36 -60.7 Dark Up 42.4 278.7 Up 09:43:36 - 10:13:36 6245
Susanville 09:58:33 -60.5 Dark Up 41.8 279.6 Up 09:43:33 - 10:13:33 6206
Gimple 09:58:33 -60.8 Dark Up 41.9 279.8 Up 09:43:33 - 10:13:33 6172
Greenville 09:58:33 -60.9 Dark Up 42.0 279.7 Up 09:43:33 - 10:13:33 6170
Portola 09:58:31 -60.7 Dark Up 41.6 280.3 Up 09:43:31 - 10:13:31 6152
Quincy 09:58:33 -61.0 Dark Up 41.9 279.9 Up 09:43:33 - 10:13:33 6149
Reno 09:58:29 -60.4 Dark Up 41.0 280.8 Up 09:43:29 - 10:13:29 6147
Yerington 09:58:26 -60.1 Dark Up 40.4 281.6 Up 09:43:26 - 10:13:26 6114
Carson City 09:58:28 -60.5 Dark Up 40.9 281.1 Up 09:43:28 - 10:13:28 6112
Gardnerville 09:58:28 -60.6 Dark Up 40.9 281.4 Up 09:43:28 - 10:13:28 6090
Tonopah 09:58:21 -59.1 Dark Up 38.8 283.3 Up 09:43:21 - 10:13:21 6089
Hawthorne 09:58:24 -59.9 Dark Up 39.9 282.3 Up 09:43:24 - 10:13:24 6086
Lee Vining 09:58:24 -60.5 Dark Up 40.2 282.5 Up 09:43:24 - 10:13:24 6013
Indian Springs 09:58:13 -58.4 Dark Up 37.2 285.1 Up 09:43:13 - 10:13:13 5997
Beatty 09:58:17 -59.1 Dark Up 38.1 284.4 Up 09:43:17 - 10:13:17 5990
Bishop 09:58:21 -60.2 Dark Up 39.5 283.3 Up 09:43:21 - 10:13:21 5979
Henderson 09:58:11 -58.0 Dark Up 36.6 285.8 Up 09:43:11 - 10:13:11 5970
Patrick 09:58:08 -57.2 Dark Up 35.5 286.7 Up 09:43:08 - 10:13:08 5951
Kingman/Dolan Springs 09:58:07 -57.4 Dark Up 35.6 286.8 Up 09:43:07 - 10:13:07 5921
Laughlin/Bullhead City 09:58:09 -57.9 Dark Up 36.0 286.6 Up 09:43:09 - 10:13:09 5899
Mohave Valley 09:58:08 -57.9 Dark Up 35.9 286.8 Up 09:43:08 - 10:13:08 5873
George/Scottsdale 09:57:59 -55.9 Dark Up 33.5 288.6 Up 09:42:59 - 10:12:59 5863
Lake Havasu City 09:58:06 -57.8 Dark Up 35.6 287.1 Up 09:43:06 - 10:13:06 5843
Parker 09:58:06 -57.8 Dark Up 35.5 287.4 Up 09:43:06 - 10:13:06 5809
Idyllwild 09:58:10 -59.9 Dark Up 37.3 286.8 Up 09:43:10 - 10:13:10 5677
Calipatria 09:58:06 -59.0 Dark Up 36.2 287.6 Up 09:43:06 - 10:13:06 5661
Yuma 09:58:03 -58.4 Dark Up 35.3 288.2 Up 09:43:03 - 10:13:03 5652
Wildwood 09:58:15 -61.3 Dark Up 38.9 285.8 Up 09:43:15 - 10:13:15 5644

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 535024, (2028/12/29 10:01UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 15.36   8
3Iot Aur       04:56:59.6 +33:09:58  2.7  5.85  10
PPM 069458     04:30:38.4 +32:27:28  6.2  0.66   8
PPM 069491     04:32:52.9 +31:47:08  8.5  0.62   7
PPM 069456     04:30:29.1 +31:35:25  9.5  0.25   7
PPM 069447     04:30:07.6 +31:57:58 10.8  0.16   7
535024         04:29:59.2 +31:48:40 14.5         7
Positions are for J2000

Event circumstances last updated at 2022/06/02 23:05:25 UT

Marc W. Buie, Southwest Research Institute

RECON