RECON: TNO occultation with 02GR32

Event between 02GR32 and star GA0680:10192626 with event index number of 1877557

Geocentric closest approach at 2024/05/22 11:13:24 UTC

J2000 position of star is 17:16:21.3 -20:20:47
Equinox of date position of star is 17:17:46.2 -20:22:16
Stellar brightness G=16.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 31 degrees from the moon. Moon is 99% illuminated.
Apparent brightness V=23.9

[RECON map]
Object is 33.3 AU from the Sun and 32.4 AU from the Earth.
Apparent velocity is 22.4 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 787 seconds.
The 1-sigma cross-track error in the shadow position is 1909 km.
The sky-plane scale is 23470.1 km/arcsec.

The object has an absolute magnitude Hv=8.7
Diameter=111.7 km assuming a 5% albedo -- 5.0 sec chord
Diameter=45.6 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 02GR32, (2024/05/22 11:13UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.4 -26:29:02  0.9 12.36  21
35Eta Oph      17:11:46.7 -15:45:12  2.6  4.84  31
40Xi Oph       17:22:28.2 -21:08:12  3.9  1.33  32
PPM 232820     17:16:20.1 -19:53:22  8.3  0.59  31
PPM 266639     17:18:18.8 -20:37:46  9.5  0.28  32
02GR32         17:17:48.2 -20:22:18 16.6        32
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 1.1 sigma about the mid-time.
The median site spacing is 41.0 km RECON observability=0.1 and success probability=0.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 11:12:24 -7.0 NT Up 14.5 208.2 Really Low 10:57:24 - 11:27:24 7272
Kelowna 11:12:20 -7.1 NT Up 14.9 209.1 Really Low 10:57:20 - 11:27:20 7237
Peachland 11:12:20 -7.4 NT Up 15.1 208.9 Really Low 10:57:20 - 11:27:20 7235
Summerland 11:12:20 -7.4 NT Up 15.2 209.0 Really Low 10:57:20 - 11:27:20 7229
Penticton 11:12:20 -7.4 NT Up 15.2 209.1 Really Low 10:57:20 - 11:27:20 7225
Oliver 11:12:18 -7.7 NT Up 15.5 209.1 Really Low 10:57:18 - 11:27:18 7212
Victoria 11:12:29 -9.9 NT Up 17.3 205.7 Really Low 10:57:29 - 11:27:29 7207
Anarchist Mountain Observatory 11:12:19 -7.7 NT Up 15.6 209.3 Really Low 10:57:19 - 11:27:19 7205
Sleaford 11:11:51 0.8 Sun up Down 8.2 220.7 Really Low 10:56:51 - 11:26:51 7201
Okanogan 11:12:17 -8.3 NT Up 16.2 209.2 Really Low 10:57:17 - 11:27:17 7180
Brewster 11:12:17 -8.5 NT Up 16.5 209.1 Really Low 10:57:17 - 11:27:17 7171
Manson/Chelan 11:12:18 -8.9 NT Up 16.8 208.8 Really Low 10:57:18 - 11:27:18 7165
Wenatchee 11:12:18 -9.3 NT Up 17.3 208.7 Really Low 10:57:18 - 11:27:18 7146
Ellensburg 11:12:17 -9.7 NT Up 17.8 208.5 Really Low 10:57:17 - 11:27:17 7130
Yakima 11:12:17 -10.0 NT Up 18.1 208.6 Really Low 10:57:17 - 11:27:17 7113
Toppenish/White Swan 11:12:16 -10.0 NT Up 18.3 208.8 Really Low 10:57:16 - 11:27:16 7103
PNWRO 11:12:10 -9.6 NT Up 18.1 210.2 Really Low 10:57:10 - 11:27:10 7077
The Dalles 11:12:17 -11.0 NT Up 19.2 208.1 Really Low 10:57:17 - 11:27:17 7073
Maupin 11:12:15 -11.2 NT Up 19.5 208.3 Really Low 10:57:15 - 11:27:15 7054
Sisters 11:12:16 -12.1 AT Up 20.5 208.0 Low 10:57:16 - 11:27:16 7017
Bend 11:12:15 -12.1 AT Up 20.6 208.3 Low 10:57:15 - 11:27:15 7004
Oregon Observatory 11:12:15 -12.3 AT Up 20.8 208.2 Low 10:57:15 - 11:27:15 6997
Chiloquin 11:12:14 -13.5 AT Up 22.1 208.0 Low 10:57:14 - 11:27:14 6936
Klamath Falls 11:12:13 -13.7 AT Up 22.4 208.2 Low 10:57:13 - 11:27:13 6918
Cedarville 11:12:06 -13.3 AT Up 22.4 209.8 Low 10:57:06 - 11:27:06 6873
Fall River/Burney 11:12:10 -14.3 AT Up 23.3 208.8 Low 10:57:10 - 11:27:10 6855
Greenville 11:12:06 -14.7 AT Up 23.9 209.4 Low 10:57:06 - 11:27:06 6804
Gimple 11:12:06 -14.7 AT Up 23.9 209.4 Low 10:57:06 - 11:27:06 6804
Quincy 11:12:06 -14.8 AT Up 24.1 209.4 Low 10:57:06 - 11:27:06 6793
Portola 11:12:04 -14.7 AT Up 24.0 209.9 Low 10:57:04 - 11:27:04 6784
Reno 11:12:02 -14.5 AT Up 24.0 210.5 Low 10:57:02 - 11:27:02 6765
Carson City 11:12:01 -14.7 AT Up 24.3 210.6 Low 10:57:01 - 11:27:01 6745
Gardnerville 11:12:01 -14.9 AT Up 24.5 210.7 Low 10:57:01 - 11:27:01 6731
Yerington 11:11:59 -14.5 AT Up 24.2 211.3 Low 10:56:59 - 11:26:59 6729
Hawthorne 11:11:55 -14.5 AT Up 24.4 211.9 Low 10:56:55 - 11:26:55 6699
Lee Vining 11:11:57 -15.2 AT Up 25.1 211.5 Low 10:56:57 - 11:26:57 6671
Dunrhomin 11:11:18 -5.3 CT Down 16.8 223.0 Really Low 10:56:18 - 11:26:18 6650
Nikitin 11:11:18 -5.4 CT Down 16.9 223.0 Really Low 10:56:18 - 11:26:18 6640
CU-SBO 11:11:18 -5.5 CT Down 17.0 223.0 Really Low 10:56:18 - 11:26:18 6637
Bishop 11:11:53 -15.2 AT Up 25.3 212.3 Low 10:56:53 - 11:26:53 6630
Beatty 11:11:47 -14.5 AT Up 25.0 213.9 Low 10:56:47 - 11:26:47 6589
Patrick 11:11:34 -13.7 AT Up 24.9 216.9 Low 10:56:34 - 11:26:34 6470
Laughlin/Bullhead City 11:11:36 -14.3 AT Up 25.4 216.3 Low 10:56:36 - 11:26:36 6462
Wildwood 11:11:48 -17.5 AT Up 28.2 213.0 Low 10:56:48 - 11:26:48 6431
Lake Havasu City 11:11:34 -14.5 AT Up 25.8 216.8 Low 10:56:34 - 11:26:34 6417
Idyllwild 11:11:41 -16.5 AT Up 27.6 214.8 Low 10:56:41 - 11:26:41 6392
Calipatria 11:11:36 -16.2 AT Up 27.5 216.1 Low 10:56:36 - 11:26:36 6340
George/Scottsdale 11:11:24 -13.4 AT Up 25.2 219.1 Low 10:56:24 - 11:26:24 6340
Yuma 11:11:32 -15.8 AT Up 27.4 217.0 Low 10:56:32 - 11:26:32 6303

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, (2024/05/22 11:13UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 12.36  21
35Eta Oph      17:10:22.7 -15:43:29  2.6  4.84  31
40Xi Oph       17:21:00.7 -21:06:51  3.9  1.33  32
PPM 232820     17:14:53.6 -19:51:48  8.3  0.59  31
PPM 266639     17:16:51.8 -20:36:16  9.5  0.28  32
02GR32         17:16:21.3 -20:20:47 16.6        31
Positions are for J2000

Event circumstances last updated at 2023/11/04 04:12:13 UT

Marc W. Buie, Southwest Research Institute

RECON