RECON: TNO occultation with 532039

Event between (532039) 13FR28 and star GA0760:04927637 with event index number of 2447996

Geocentric closest approach at 2023/05/28 06:34:40 UTC

J2000 position of star is 14:10:37.4 -12:48:48
Equinox of date position of star is 14:11:51.1 -12:55:12
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 51 degrees from the moon. Moon is 56% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 34.8 AU from the Sun and 34.0 AU from the Earth.
The TNO is moving 19.7 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 171 seconds.
The 1-sigma cross-track error in the shadow position is 2184 km.
The sky-plane scale is 24645.7 km/arcsec.

The TNO has an absolute magnitude Hv=7.4
Diameter=198.6 km assuming a 5% albedo -- 10.1 sec chord
Diameter=81.1 km assuming a 30% albedo -- 4.1 sec chord
Dynamical classification is 7:4EEE
 
 
 
 
 
 

Star training set for 532039, (2023/05/28 06:29UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:25.8 -11:16:58  1.0 11.23  41
96 Vir         14:10:15.6 -10:26:40  6.4  2.51  50
PPM 228427     14:13:01.6 -12:43:19  8.2  0.34  51
PPM 228425     14:13:01.4 -13:02:24 10.0  0.30  52
532039         14:11:53.2 -12:55:22 16.7        52
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 13.9 km RECON observability=1.0 and success probability=9.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 06:34:48 -16.3 AT Up 21.4 207.0 Low 06:20:02 - 06:49:34 3738
Kamloops 06:35:32 -15.6 AT Up 25.7 192.4 Low 06:20:46 - 06:50:18 3452
Kelowna 06:35:27 -16.6 AT Up 26.4 193.4 Low 06:20:41 - 06:50:13 3434
Peachland 06:35:28 -16.6 AT Up 26.6 193.1 Low 06:20:42 - 06:50:14 3424
Summerland 06:35:27 -16.8 AT Up 26.7 193.2 Low 06:20:41 - 06:50:13 3419
Penticton 06:35:27 -16.8 AT Up 26.7 193.3 Low 06:20:41 - 06:50:13 3418
Oliver 06:35:26 -17.2 AT Up 27.1 193.4 Low 06:20:40 - 06:50:12 3403
Anarchist Mountain Observatory 06:35:26 -17.4 AT Up 27.2 193.6 Low 06:20:40 - 06:50:12 3399
Tonasket 06:35:25 -17.7 AT Up 27.5 193.6 Low 06:20:39 - 06:50:11 3383
Okanogan 06:35:26 -17.9 AT Up 27.9 193.4 Low 06:20:40 - 06:50:12 3365
Brewster 06:35:25 -18.1 Dark Up 28.2 193.3 Low 06:20:39 - 06:50:11 3349
Manson/Chelan 06:35:26 -18.3 Dark Up 28.4 192.9 Low 06:20:40 - 06:50:12 3332
Wenatchee 06:35:25 -18.7 Dark Up 28.9 192.7 Low 06:20:39 - 06:50:11 3306
Victoria 06:35:38 -16.9 AT Up 28.2 189.3 Low 06:20:52 - 06:50:24 3296
Ellensburg 06:35:26 -19.0 Dark Up 29.4 192.6 Low 06:20:40 - 06:50:12 3282
PNWRO 06:35:18 -20.3 Dark Up 30.1 194.5 Up 06:20:32 - 06:50:04 3266
Yakima 06:35:25 -19.4 Dark Up 29.8 192.6 Low 06:20:39 - 06:50:11 3261
Toppenish/White Swan 06:35:25 -19.6 Dark Up 29.9 192.8 Low 06:20:39 - 06:50:11 3254
Goldendale 06:35:25 -20.0 Dark Up 30.5 192.4 Up 06:20:39 - 06:50:11 3218
Dunrhomin 06:34:15 -28.1 Dark Up 31.6 210.5 Up 06:19:29 - 06:49:01 3217
CU-SBO 06:34:15 -28.3 Dark Up 31.8 210.4 Up 06:19:29 - 06:49:01 3202
The Dalles 06:35:26 -20.1 Dark Up 30.8 192.0 Up 06:20:40 - 06:50:12 3198
Maupin 06:35:25 -20.6 Dark Up 31.2 192.2 Up 06:20:39 - 06:50:11 3179
Sisters 06:35:25 -21.3 Dark Up 32.1 191.7 Up 06:20:39 - 06:50:11 3123
Bend 06:35:24 -21.5 Dark Up 32.3 192.1 Up 06:20:38 - 06:50:10 3116
Oregon Observatory 06:35:25 -21.7 Dark Up 32.5 191.9 Up 06:20:39 - 06:50:11 3104
North Lake 06:35:21 -22.4 Dark Up 33.1 192.6 Up 06:20:35 - 06:50:07 3081
Lakeview 06:35:18 -23.5 Dark Up 34.0 193.4 Up 06:20:32 - 06:50:04 3035
Chiloquin 06:35:23 -22.8 Dark Up 33.9 191.6 Up 06:20:37 - 06:50:09 3023
Klamath Falls 06:35:23 -23.1 Dark Up 34.2 191.8 Up 06:20:37 - 06:50:09 3005
Cedarville 06:35:16 -24.2 Dark Up 34.6 193.7 Up 06:20:30 - 06:50:02 3001
Fall River/Burney 06:35:19 -24.3 Dark Up 35.3 192.4 Up 06:20:33 - 06:50:05 2946
Susanville 06:35:16 -25.1 Dark Up 35.8 193.3 Up 06:20:30 - 06:50:02 2926
Gimple 06:35:17 -25.3 Dark Up 36.1 193.1 Up 06:20:31 - 06:50:03 2904
Greenville 06:35:17 -25.3 Dark Up 36.1 193.0 Up 06:20:31 - 06:50:03 2902
Portola 06:35:14 -25.7 Dark Up 36.3 193.6 Up 06:20:28 - 06:50:00 2894
Reno 06:35:10 -26.1 Dark Up 36.5 194.4 Up 06:20:24 - 06:49:56 2893
Quincy 06:35:16 -25.5 Dark Up 36.3 193.1 Up 06:20:30 - 06:50:02 2890
Yerington 06:35:07 -26.8 Dark Up 36.9 195.3 Up 06:20:21 - 06:49:53 2874
Carson City 06:35:10 -26.5 Dark Up 36.8 194.5 Up 06:20:24 - 06:49:56 2872
Tonopah 06:34:58 -28.2 Dark Up 37.4 197.8 Up 06:20:12 - 06:49:44 2861
Gardnerville 06:35:09 -26.7 Dark Up 37.1 194.6 Up 06:20:23 - 06:49:55 2858
Hawthorne 06:35:05 -27.4 Dark Up 37.2 196.0 Up 06:20:19 - 06:49:51 2857
Lee Vining 06:35:05 -27.8 Dark Up 37.9 195.6 Up 06:20:19 - 06:49:51 2812
Indian Springs 06:34:48 -30.0 Dark Up 38.4 200.0 Up 06:20:02 - 06:49:34 2801
Beatty 06:34:55 -29.4 Dark Up 38.4 198.6 Up 06:20:09 - 06:49:41 2798
Bishop 06:35:01 -28.6 Dark Up 38.3 196.6 Up 06:20:15 - 06:49:47 2790
Henderson 06:34:44 -30.7 Dark Up 38.7 200.9 Up 06:19:58 - 06:49:30 2781
Patrick 06:34:38 -31.5 Dark Up 38.9 202.4 Up 06:19:52 - 06:49:24 2765
Kingman/Dolan Springs 06:34:39 -31.7 Dark Up 39.2 202.2 Up 06:19:53 - 06:49:25 2747
Laughlin/Bullhead City 06:34:41 -31.6 Dark Up 39.4 201.6 Up 06:19:55 - 06:49:27 2733
Mohave Valley 06:34:40 -31.9 Dark Up 39.6 201.7 Up 06:19:54 - 06:49:26 2716
George/Scottsdale 06:34:26 -33.6 Dark Up 39.8 205.3 Up 06:19:40 - 06:49:12 2696
Lake Havasu City 06:34:38 -32.3 Dark Up 39.9 202.1 Up 06:19:52 - 06:49:24 2695
Parker 06:34:38 -32.6 Dark Up 40.3 202.3 Up 06:19:52 - 06:49:24 2672
Idyllwild 06:34:47 -32.4 Dark Up 41.3 199.5 Up 06:20:01 - 06:49:33 2591
Calipatria 06:34:41 -33.3 Dark Up 41.6 201.1 Up 06:19:55 - 06:49:27 2575
Wildwood 06:34:56 -31.6 Dark Up 41.5 197.1 Up 06:20:10 - 06:49:42 2571
Yuma 06:34:36 -33.9 Dark Up 41.7 202.3 Up 06:19:50 - 06:49:22 2566

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 532039, (2023/05/28 06:29UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 11.23  41
96 Vir         14:09:00.6 -10:20:04  6.4  2.51  50
PPM 228427     14:11:45.8 -12:36:46  8.2  0.34  51
PPM 228425     14:11:45.5 -12:55:51 10.0  0.30  52
532039         14:10:37.4 -12:48:48 16.7        51
Positions are for J2000

Event circumstances last updated at 2022/10/04 04:15:34 UT

Marc W. Buie, Southwest Research Institute

RECON