RECON: TNO occultation with 342842

Event between (342842) 08YB3 and star GA1220:07373483 with event index number of 2203533

Geocentric closest approach at 2024/10/19 02:03:09 UTC

J2000 position of star is 19:42:07.9 +32:30:11
Equinox of date position of star is 19:43:03.7 +32:33:40
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 94 degrees from the moon. Moon is 96% illuminated.
Apparent brightness V=21.7

[RECON map]
Object is 15.5 AU from the Sun and 15.4 AU from the Earth.
Apparent velocity is 29.8 km/sec on the sky relative to the star, or, 9.6 arcsec/hr.
The 1-sigma error in the time of the event is 53 seconds.
The 1-sigma cross-track error in the shadow position is 584 km.
The sky-plane scale is 11157.2 km/arcsec.

The object has an absolute magnitude Hv=9.5
Diameter=82.8 km assuming a 5% albedo -- 2.6 sec chord
Diameter=33.8 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 342842, (2024/10/19 02:03UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:46.7 +38:48:28  0.0 14.63 102
37Gam Cyg      20:23:07.2 +40:20:14  2.2 11.18  84
PPM 083318     19:40:40.9 +34:02:15  6.2  1.56  94
PPM 083437     19:44:37.8 +32:08:25  7.8  0.53  94
PPM 083358     19:41:54.1 +32:40:39  9.7  0.27  95
PPM 083381     19:42:53.1 +32:28:06 10.5  0.10  94
342842         19:43:05.1 +32:33:46 16.8        94
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 **** km RECON observability=0.1 and success probability=-0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Nikitin 02:02:40 -21.2 Dark Up 73.7 248.0 Up 01:57:44 - 02:07:36 -1720
Dunrhomin 02:02:39 -21.2 Dark Up 73.6 247.5 Up 01:57:43 - 02:07:35 -1722
CU-SBO 02:02:41 -21.1 Dark Up 73.8 248.1 Up 01:57:45 - 02:07:37 -1725
Sleaford 02:01:57 -19.2 Dark Up 66.8 219.0 Up 01:57:01 - 02:06:53 -2015
George/Scottsdale 02:03:06 -16.1 AT Up 80.3 265.9 Up 01:58:10 - 02:08:02 -2215
Patrick 02:03:00 -14.5 AT Up 81.7 252.2 Up 01:58:04 - 02:07:56 -2410
Lake Havasu City 02:03:04 -14.1 AT Up 82.3 257.6 Up 01:58:08 - 02:08:00 -2445
Yuma 02:03:10 -13.8 AT Up 82.7 270.9 Up 01:58:14 - 02:08:06 -2464
Laughlin/Bullhead City 02:03:01 -13.9 AT Up 82.3 252.2 Up 01:58:05 - 02:07:57 -2472
Calipatria 02:03:09 -13.0 AT Up 83.4 266.7 Up 01:58:13 - 02:08:05 -2549
Idyllwild 02:03:07 -12.1 AT Up 84.4 259.2 Up 01:58:11 - 02:08:03 -2661
Beatty 02:02:55 -12.2 AT Up 83.1 232.4 Up 01:57:59 - 02:07:51 -2676
Bishop 02:02:53 -10.9 NT Up 83.7 220.6 Up 01:57:57 - 02:07:49 -2822
Wildwood 02:03:05 -10.5 NT Down 85.8 249.2 Up 01:58:09 - 02:08:01 -2836
Hawthorne 02:02:49 -10.8 NT Up 82.9 213.1 Up 01:57:53 - 02:07:45 -2845
PNWRO 02:02:21 -11.0 NT Up 76.1 194.9 Up 01:57:25 - 02:07:17 -2878
Lee Vining 02:02:51 -10.4 NT Up 83.6 212.8 Up 01:57:55 - 02:07:47 -2887
Yerington 02:02:47 -10.4 NT Up 82.7 208.1 Up 01:57:51 - 02:07:43 -2891
Anarchist Mountain Observatory 02:02:11 -10.8 NT Up 73.3 190.9 Up 01:57:15 - 02:07:07 -2918
Kelowna 02:02:07 -10.8 NT Up 72.4 190.0 Up 01:57:11 - 02:07:03 -2927
Oliver 02:02:10 -10.7 NT Up 73.1 190.2 Up 01:57:14 - 02:07:06 -2933
Penticton 02:02:09 -10.7 NT Up 72.8 190.0 Up 01:57:13 - 02:07:05 -2933
Okanogan 02:02:13 -10.7 NT Up 73.9 190.7 Up 01:57:17 - 02:07:09 -2934
Summerland 02:02:08 -10.7 NT Up 72.7 189.6 Up 01:57:12 - 02:07:04 -2941
Gardnerville 02:02:47 -10.0 NT Up 83.0 204.6 Up 01:57:51 - 02:07:43 -2942
Carson City 02:02:46 -10.0 NT Up 82.8 203.5 Up 01:57:50 - 02:07:42 -2946
Peachland 02:02:08 -10.6 NT Up 72.6 189.3 Up 01:57:12 - 02:07:04 -2948
Reno 02:02:45 -10.0 NT Up 82.4 202.2 Up 01:57:49 - 02:07:41 -2948
Brewster 02:02:13 -10.5 NT Up 74.2 190.2 Up 01:57:17 - 02:07:09 -2949
Manson/Chelan 02:02:14 -10.3 NT Up 74.5 189.2 Up 01:57:18 - 02:07:10 -2976
Cedarville 02:02:38 -9.8 NT Up 80.7 195.8 Up 01:57:42 - 02:07:34 -2978
Wenatchee 02:02:16 -10.1 NT Up 74.9 189.0 Up 01:57:20 - 02:07:12 -2989
Kamloops 02:02:05 -10.3 NT Up 71.7 187.2 Up 01:57:09 - 02:07:01 -2991
Toppenish/White Swan 02:02:20 -10.0 NT Up 76.0 189.4 Up 01:57:24 - 02:07:16 -2994
Portola 02:02:44 -9.5 NT Up 82.4 197.6 Up 01:57:48 - 02:07:40 -3004
Ellensburg 02:02:17 -9.9 NT Up 75.4 188.5 Up 01:57:21 - 02:07:13 -3006
Yakima 02:02:19 -9.9 NT Up 75.8 188.7 Up 01:57:23 - 02:07:15 -3007
Gimple 02:02:43 -9.2 NT Up 82.1 194.5 Up 01:57:47 - 02:07:39 -3038
Quincy 02:02:44 -9.1 NT Up 82.3 194.4 Up 01:57:48 - 02:07:40 -3045
Greenville 02:02:43 -9.1 NT Up 82.2 194.0 Up 01:57:47 - 02:07:39 -3045
Maupin 02:02:24 -9.5 NT Up 77.2 187.8 Up 01:57:28 - 02:07:20 -3049
The Dalles 02:02:23 -9.4 NT Up 76.8 187.1 Up 01:57:27 - 02:07:19 -3057
Bend 02:02:28 -9.2 NT Up 78.4 187.6 Up 01:57:32 - 02:07:24 -3069
Oregon Observatory 02:02:29 -9.1 NT Up 78.5 187.2 Up 01:57:33 - 02:07:25 -3080
Fall River/Burney 02:02:40 -8.9 NT Up 81.3 190.0 Up 01:57:44 - 02:07:36 -3081
Sisters 02:02:27 -9.0 NT Up 78.1 186.4 Up 01:57:31 - 02:07:23 -3090
Klamath Falls 02:02:35 -8.7 NT Up 80.2 186.9 Up 01:57:39 - 02:07:31 -3111
Chiloquin 02:02:34 -8.7 NT Up 79.9 186.2 Up 01:57:38 - 02:07:30 -3117
Victoria 02:02:12 -8.1 NT Up 74.0 178.9 Up 01:57:16 - 02:07:08 -3217

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 342842, (2024/10/19 02:03UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 14.63 102
37Gam Cyg      20:22:13.7 +40:15:24  2.2 11.18  84
PPM 083318     19:39:44.9 +33:58:44  6.2  1.56  94
PPM 083437     19:43:40.2 +32:04:47  7.8  0.53  94
PPM 083358     19:40:57.0 +32:37:06  9.7  0.27  95
PPM 083381     19:41:55.8 +32:24:32 10.5  0.10  94
342842         19:42:07.9 +32:30:11 16.8        94
Positions are for J2000

Event circumstances last updated at 2024/03/02 05:59:27 UT

Marc W. Buie, Southwest Research Institute

RECON