RECON: TNO occultation with 342842

Event between (342842) 08YB3 and star GA1200:08576689 with event index number of 2203653

Geocentric closest approach at 2024/11/16 03:44:12 UTC

J2000 position of star is 19:44:24.9 +30:51:09
Equinox of date position of star is 19:45:21.9 +30:54:43
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 100 degrees from the moon. Moon is 100% illuminated.
Apparent brightness V=21.8

[RECON map]
Object is 15.6 AU from the Sun and 15.7 AU from the Earth.
Apparent velocity is 28.7 km/sec on the sky relative to the star, or, 9.1 arcsec/hr.
The 1-sigma error in the time of the event is 51 seconds.
The 1-sigma cross-track error in the shadow position is 967 km.
The sky-plane scale is 11395.4 km/arcsec.

The object has an absolute magnitude Hv=9.5
Diameter=82.8 km assuming a 5% albedo -- 2.7 sec chord
Diameter=33.8 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 342842, (2024/11/16 03:46UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:46.8 +38:48:28  0.0 15.92 105
37Gam Cyg      20:23:07.3 +40:20:15  2.2 12.13  88
12Phi Cyg      19:40:21.6 +30:12:43  5.8  1.29 101
PPM 083508     19:46:59.7 +31:00:43  8.3  0.36  99
PPM 083426     19:44:18.7 +30:59:42  9.6  0.25 100
PPM 083461     19:45:30.6 +30:55:52 10.3  0.03 100
342842         19:45:23.6 +30:54:49 15.4       100
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 4.8 km RECON observability=1.0 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 03:44:14 -45.8 Dark Up 33.3 284.4 Up 03:39:32 - 03:48:57 5764
Dunrhomin 03:44:13 -45.8 Dark Up 33.4 284.3 Up 03:39:30 - 03:48:55 5763
CU-SBO 03:44:15 -45.8 Dark Up 33.4 284.4 Up 03:39:32 - 03:48:57 5762
George/Scottsdale 03:44:42 -41.7 Dark Up 36.8 285.7 Up 03:39:59 - 03:49:24 5468
Sleaford 03:43:31 -41.1 Dark Up 36.1 275.6 Up 03:38:48 - 03:48:13 5448
Patrick 03:44:37 -39.9 Dark Up 38.8 283.6 Up 03:39:54 - 03:49:19 5350
Lake Havasu City 03:44:40 -39.6 Dark Up 38.9 284.2 Up 03:39:58 - 03:49:23 5324
Laughlin/Bullhead City 03:44:38 -39.4 Dark Up 39.3 283.5 Up 03:39:55 - 03:49:20 5309
Yuma 03:44:47 -39.5 Dark Up 38.7 285.5 Up 03:40:05 - 03:49:30 5302
Calipatria 03:44:46 -38.7 Dark Up 39.5 284.8 Up 03:40:03 - 03:49:28 5249
Idyllwild 03:44:44 -37.7 Dark Up 40.7 283.8 Up 03:40:01 - 03:49:26 5179
Beatty 03:44:32 -37.5 Dark Up 41.4 281.1 Up 03:39:50 - 03:49:15 5178
Bishop 03:44:31 -36.1 Dark Up 42.8 279.9 Up 03:39:48 - 03:49:13 5079
Hawthorne 03:44:26 -35.8 Dark Up 43.2 278.7 Up 03:39:44 - 03:49:09 5063
Wildwood 03:44:44 -36.1 Dark Up 42.3 282.8 Up 03:40:01 - 03:49:26 5061
Lee Vining 03:44:29 -35.5 Dark Up 43.5 279.0 Up 03:39:46 - 03:49:11 5034
Yerington 03:44:24 -35.4 Dark Up 43.7 278.0 Up 03:39:42 - 03:49:07 5030
Gardnerville 03:44:25 -34.9 Dark Up 44.1 277.8 Up 03:39:42 - 03:49:07 4994
PNWRO 03:43:58 -34.7 Dark Up 44.1 271.4 Up 03:39:15 - 03:48:40 4992
Carson City 03:44:24 -34.9 Dark Up 44.2 277.5 Up 03:39:41 - 03:49:06 4991
Reno 03:44:23 -34.8 Dark Up 44.3 277.1 Up 03:39:40 - 03:49:05 4988
Cedarville 03:44:15 -34.4 Dark Up 44.8 275.0 Up 03:39:33 - 03:48:58 4960
Portola 03:44:22 -34.3 Dark Up 44.8 276.5 Up 03:39:39 - 03:49:04 4948
Anarchist Mountain Observatory 03:43:46 -33.9 Dark Up 44.5 268.1 Up 03:39:04 - 03:48:29 4926
Okanogan 03:43:50 -33.9 Dark Up 44.6 268.5 Up 03:39:07 - 03:48:32 4924
Gimple 03:44:20 -34.0 Dark Up 45.1 276.0 Up 03:39:38 - 03:49:03 4923
Quincy 03:44:21 -34.0 Dark Up 45.2 276.1 Up 03:39:39 - 03:49:04 4919
Greenville 03:44:20 -33.9 Dark Up 45.2 275.9 Up 03:39:38 - 03:49:03 4918
Brewster 03:43:50 -33.8 Dark Up 44.8 268.6 Up 03:39:07 - 03:48:32 4917
Oliver 03:43:46 -33.7 Dark Up 44.6 267.7 Up 03:39:03 - 03:48:28 4912
Penticton 03:43:44 -33.7 Dark Up 44.6 267.4 Up 03:39:01 - 03:48:26 4907
Toppenish/White Swan 03:43:57 -33.7 Dark Up 45.2 269.9 Up 03:39:14 - 03:48:39 4906
Kelowna 03:43:43 -33.7 Dark Up 44.5 267.1 Up 03:39:00 - 03:48:25 4906
Manson/Chelan 03:43:52 -33.6 Dark Up 45.0 268.6 Up 03:39:09 - 03:48:34 4901
Summerland 03:43:44 -33.6 Dark Up 44.6 267.2 Up 03:39:02 - 03:48:27 4900
Wenatchee 03:43:52 -33.5 Dark Up 45.1 268.9 Up 03:39:10 - 03:48:35 4898
Yakima 03:43:56 -33.5 Dark Up 45.3 269.6 Up 03:39:14 - 03:48:39 4895
Peachland 03:43:44 -33.5 Dark Up 44.7 267.0 Up 03:39:01 - 03:48:26 4893
Ellensburg 03:43:54 -33.5 Dark Up 45.3 269.2 Up 03:39:12 - 03:48:37 4891
Fall River/Burney 03:44:17 -33.5 Dark Up 45.6 274.7 Up 03:39:35 - 03:49:00 4888
Maupin 03:44:02 -33.4 Dark Up 45.6 270.7 Up 03:39:20 - 03:48:45 4881
Bend 03:44:06 -33.3 Dark Up 45.8 271.7 Up 03:39:23 - 03:48:48 4877
Oregon Observatory 03:44:07 -33.2 Dark Up 45.9 271.8 Up 03:39:24 - 03:48:49 4871
The Dalles 03:43:59 -33.2 Dark Up 45.7 270.2 Up 03:39:17 - 03:48:42 4871
Klamath Falls 03:44:13 -33.2 Dark Up 46.0 273.3 Up 03:39:30 - 03:48:55 4861
Sisters 03:44:05 -33.1 Dark Up 46.0 271.2 Up 03:39:22 - 03:48:47 4860
Chiloquin 03:44:11 -33.1 Dark Up 46.1 272.9 Up 03:39:29 - 03:48:54 4854
Kamloops 03:43:41 -32.9 Dark Up 45.0 265.6 Up 03:38:59 - 03:48:24 4847
Victoria 03:43:49 -31.3 Dark Up 47.1 265.4 Up 03:39:07 - 03:48:32 4718

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, (2024/11/16 03:46UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 15.92 105
37Gam Cyg      20:22:13.7 +40:15:24  2.2 12.13  88
12Phi Cyg      19:39:22.6 +30:09:13  5.8  1.29 101
PPM 083508     19:46:01.0 +30:56:59  8.3  0.36  99
PPM 083426     19:43:20.1 +30:56:04  9.6  0.25 100
PPM 083461     19:44:31.9 +30:52:12 10.3  0.03 100
342842         19:44:24.9 +30:51:09 15.4       100
Positions are for J2000

Event circumstances last updated at 2024/03/02 06:03:40 UT

Marc W. Buie, Southwest Research Institute

RECON