RECON: TNO occultation with 02GR32

Event between 02GR32 and star GA0680:09857488 with event index number of 1264315

Geocentric closest approach at 2024/06/15 09:26:50 UTC

J2000 position of star is 17:13:54.3 -20:17:35
Equinox of date position of star is 17:15:19.2 -20:19:09
Stellar brightness G=15.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 72 degrees from the moon. Moon is 61% illuminated.
Apparent brightness V=23.9

[RECON map]
Object is 33.3 AU from the Sun and 32.3 AU from the Earth.
Apparent velocity is 23.8 km/sec on the sky relative to the star, or, 3.7 arcsec/hr.
The 1-sigma error in the time of the event is 1110 seconds.
The 1-sigma cross-track error in the shadow position is 3966 km.
The sky-plane scale is 23447.6 km/arcsec.

The object has an absolute magnitude Hv=8.7
Diameter=111.7 km assuming a 5% albedo -- 4.7 sec chord
Diameter=45.6 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 02GR32, (2024/06/15 09:27UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.7 -26:29:03  0.9 11.91  62
35Eta Oph      17:11:46.9 -15:45:13  2.6  4.64  71
40Xi Oph       17:22:28.4 -21:08:13  3.9  1.85  73
PPM 232820     17:16:20.4 -19:53:22  8.3  0.49  72
PPM 266599     17:16:04.9 -20:22:16  9.8  0.18  72
02GR32         17:15:21.4 -20:19:12 15.3        72
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 0.8 sigma about the mid-time.
The median site spacing is 20.2 km RECON observability=0.6 and success probability=4.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 09:25:54 -13.7 AT Down 15.2 206.0 Really Low 09:10:54 - 09:40:54 3782
Kelowna 09:25:51 -14.3 AT Down 15.7 206.9 Really Low 09:10:51 - 09:40:51 3746
Peachland 09:25:51 -14.4 AT Down 15.9 206.6 Really Low 09:10:51 - 09:40:51 3744
Summerland 09:25:50 -14.6 AT Down 16.0 206.7 Really Low 09:10:50 - 09:40:50 3738
Penticton 09:25:50 -14.6 AT Down 16.0 206.9 Really Low 09:10:50 - 09:40:50 3734
Oliver 09:25:49 -14.9 AT Down 16.3 206.9 Really Low 09:10:49 - 09:40:49 3721
Victoria 09:25:59 -16.4 AT Down 18.0 203.4 Really Low 09:10:59 - 09:40:59 3716
Anarchist Mountain Observatory 09:25:49 -15.1 AT Down 16.4 207.1 Really Low 09:10:49 - 09:40:49 3713
Sleaford 09:25:22 -8.5 NT Down 9.2 218.7 Really Low 09:10:22 - 09:40:22 3709
Okanogan 09:25:48 -15.7 AT Down 17.1 207.0 Really Low 09:10:48 - 09:40:48 3688
Brewster 09:25:48 -16.0 AT Down 17.4 206.8 Really Low 09:10:48 - 09:40:48 3679
Manson/Chelan 09:25:49 -16.3 AT Down 17.7 206.5 Really Low 09:10:49 - 09:40:49 3672
Wenatchee 09:25:48 -16.8 AT Down 18.1 206.4 Really Low 09:10:48 - 09:40:48 3654
Ellensburg 09:25:49 -17.2 AT Down 18.6 206.3 Really Low 09:10:49 - 09:40:49 3638
Yakima 09:25:48 -17.6 AT Down 18.9 206.3 Really Low 09:10:48 - 09:40:48 3620
Toppenish/White Swan 09:25:47 -17.8 AT Down 19.1 206.5 Really Low 09:10:47 - 09:40:47 3610
PNWRO 09:25:42 -17.7 AT Down 18.9 208.0 Really Low 09:10:42 - 09:40:42 3584
The Dalles 09:25:48 -18.7 Dark Down 20.0 205.9 Low 09:10:48 - 09:40:48 3580
Maupin 09:25:47 -19.1 Dark Down 20.4 206.1 Low 09:10:47 - 09:40:47 3560
Sisters 09:25:47 -20.0 Dark Down 21.3 205.7 Low 09:10:47 - 09:40:47 3523
Bend 09:25:46 -20.2 Dark Down 21.4 206.0 Low 09:10:46 - 09:40:46 3510
Oregon Observatory 09:25:47 -20.4 Dark Down 21.6 205.9 Low 09:10:47 - 09:40:47 3503
Chiloquin 09:25:46 -21.7 Dark Down 23.0 205.8 Low 09:10:46 - 09:40:46 3440
Klamath Falls 09:25:45 -22.0 Dark Down 23.2 205.9 Low 09:10:45 - 09:40:45 3422
Cedarville 09:25:39 -22.3 Dark Down 23.3 207.5 Low 09:10:39 - 09:40:39 3376
Fall River/Burney 09:25:42 -23.0 Dark Down 24.2 206.5 Low 09:10:42 - 09:40:42 3359
Greenville 09:25:39 -23.8 Dark Down 24.8 207.1 Low 09:10:39 - 09:40:39 3307
Gimple 09:25:39 -23.7 Dark Down 24.8 207.2 Low 09:10:39 - 09:40:39 3306
Quincy 09:25:39 -24.0 Dark Down 25.0 207.1 Low 09:10:39 - 09:40:39 3296
Portola 09:25:37 -23.9 Dark Down 25.0 207.6 Low 09:10:37 - 09:40:37 3286
Reno 09:25:35 -24.0 Dark Down 25.0 208.3 Low 09:10:35 - 09:40:35 3267
Carson City 09:25:34 -24.3 Dark Down 25.3 208.4 Low 09:10:34 - 09:40:34 3247
Gardnerville 09:25:34 -24.6 Dark Down 25.5 208.5 Low 09:10:34 - 09:40:34 3233
Yerington 09:25:32 -24.3 Dark Down 25.2 209.0 Low 09:10:32 - 09:40:32 3231
Hawthorne 09:25:29 -24.6 Dark Down 25.4 209.6 Low 09:10:29 - 09:40:29 3200
Lee Vining 09:25:30 -25.3 Dark Down 26.1 209.3 Low 09:10:30 - 09:40:30 3172
Dunrhomin 09:24:53 -18.2 Dark Down 18.1 221.1 Really Low 09:09:53 - 09:39:53 3149
Nikitin 09:24:52 -18.3 Dark Down 18.2 221.1 Really Low 09:09:52 - 09:39:52 3139
CU-SBO 09:24:52 -18.4 Dark Down 18.3 221.0 Really Low 09:09:52 - 09:39:52 3136
Bishop 09:25:27 -25.6 Dark Down 26.3 210.1 Low 09:10:27 - 09:40:27 3130
Beatty 09:25:21 -25.5 Dark Down 26.1 211.8 Low 09:10:21 - 09:40:21 3088
Patrick 09:25:09 -25.8 Dark Down 26.1 214.8 Low 09:10:09 - 09:40:09 2968
Laughlin/Bullhead City 09:25:11 -26.3 Dark Down 26.6 214.2 Low 09:10:11 - 09:40:11 2959
Wildwood 09:25:23 -28.7 Dark Down 29.3 210.8 Low 09:10:23 - 09:40:23 2929
Lake Havasu City 09:25:09 -26.8 Dark Down 27.0 214.6 Low 09:10:09 - 09:40:09 2914
Idyllwild 09:25:16 -28.4 Dark Down 28.7 212.6 Low 09:10:16 - 09:40:16 2890
Calipatria 09:25:11 -28.5 Dark Down 28.7 213.9 Low 09:10:11 - 09:40:11 2837
George/Scottsdale 09:25:00 -26.5 Dark Down 26.5 217.0 Low 09:10:00 - 09:40:00 2836
Yuma 09:25:07 -28.5 Dark Down 28.7 214.9 Low 09:10:07 - 09:40:07 2799

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 02GR32, (2024/06/15 09:27UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 11.91  62
35Eta Oph      17:10:22.7 -15:43:29  2.6  4.64  71
40Xi Oph       17:21:00.7 -21:06:51  3.9  1.85  73
PPM 232820     17:14:53.6 -19:51:48  8.3  0.49  72
PPM 266599     17:14:37.8 -20:20:41  9.8  0.18  72
02GR32         17:13:54.3 -20:17:35 15.3        72
Positions are for J2000

Event circumstances last updated at 2023/11/04 04:13:46 UT

Marc W. Buie, Southwest Research Institute

RECON