RECON: TNO occultation with 342842

Event between (342842) 08YB3 and star GA1260:07097210 with event index number of 2203242

Geocentric closest approach at 2024/08/11 06:27:45 UTC

J2000 position of star is 19:53:03.1 +36:33:53
Equinox of date position of star is 19:53:51.2 +36:37:21
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 97 degrees from the moon. Moon is 37% illuminated.
TNO apparent brightness V=21.4

[RECON map]
TNO is 15.5 AU from the Sun and 14.9 AU from the Earth.
The TNO is moving 32.7 km/sec on the sky relative to the star, or, 10.9 arcsec/hr.
The 1-sigma error in the time of the event is 28 seconds.
The 1-sigma cross-track error in the shadow position is 1283 km.
The sky-plane scale is 10784.0 km/arcsec.

The TNO has an absolute magnitude Hv=9.3
Diameter=83.2 km assuming a 5% albedo -- 2.5 sec chord
Diameter=34.0 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 342842, (2024/08/11 06:28UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:16.3 +45:22:09  1.3 12.60 107
37Gam Cyg      20:23:06.7 +40:20:12  2.2  6.80 103
25 Cyg         20:00:49.3 +37:06:41  5.0  1.46  98
PPM 083731     19:53:10.8 +36:29:49  7.3  0.20  97
PPM 083732     19:53:12.3 +36:41:41  9.9  0.16  97
342842         19:53:57.3 +36:37:48 15.4        97
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 24.7 km RECON observability=1.0 and success probability=34.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 06:27:22 -20.7 Dark Down 75.8 174.8 Up 06:24:31 - 06:30:14 -153
Victoria 06:27:32 -21.7 Dark Down 77.6 162.6 Up 06:24:40 - 06:30:23 -210
Peachland 06:27:23 -21.7 Dark Down 76.8 176.6 Up 06:24:31 - 06:30:14 -259
Kelowna 06:27:22 -21.7 Dark Down 76.7 177.7 Up 06:24:31 - 06:30:14 -261
Summerland 06:27:23 -21.9 Dark Down 76.9 176.9 Up 06:24:31 - 06:30:14 -276
Penticton 06:27:23 -22.0 Dark Down 77.0 177.3 Up 06:24:31 - 06:30:14 -286
Oliver 06:27:23 -22.3 Dark Down 77.4 177.2 Up 06:24:32 - 06:30:15 -318
Anarchist Mountain Observatory 06:27:23 -22.5 Dark Down 77.5 177.9 Up 06:24:32 - 06:30:15 -341
Tonasket 06:27:24 -22.8 Dark Down 77.9 177.6 Up 06:24:33 - 06:30:16 -366
Okanogan 06:27:25 -23.0 Dark Down 78.2 177.0 Up 06:24:33 - 06:30:16 -389
Brewster 06:27:26 -23.2 Dark Down 78.4 176.1 Up 06:24:34 - 06:30:17 -405
Manson/Chelan 06:27:27 -23.3 Dark Down 78.6 174.5 Up 06:24:35 - 06:30:18 -408
Wenatchee 06:27:28 -23.7 Dark Down 79.1 173.6 Up 06:24:37 - 06:30:20 -443
Ellensburg 06:27:29 -24.0 Dark Down 79.5 172.4 Up 06:24:38 - 06:30:21 -470
Yakima 06:27:30 -24.3 Dark Down 79.9 172.0 Up 06:24:39 - 06:30:22 -506
Toppenish/White Swan 06:27:30 -24.6 Dark Down 80.1 172.7 Up 06:24:39 - 06:30:22 -533
Sleaford 06:26:54 -22.2 Dark Down 72.1 215.1 Up 06:24:02 - 06:29:45 -534
Goldendale 06:27:32 -25.0 Dark Down 80.6 170.2 Up 06:24:41 - 06:30:24 -563
The Dalles 06:27:33 -25.0 Dark Down 80.8 168.1 Up 06:24:42 - 06:30:25 -566
Pasco 06:27:28 -25.1 Dark Down 80.3 178.6 Up 06:24:36 - 06:30:19 -599
Maupin 06:27:34 -25.4 Dark Down 81.2 168.1 Up 06:24:42 - 06:30:25 -608
PNWRO 06:27:28 -25.4 Dark Down 80.6 179.7 Up 06:24:37 - 06:30:20 -632
Sisters 06:27:37 -26.1 Dark Down 82.0 164.1 Up 06:24:45 - 06:30:28 -664
Redmond 06:27:36 -26.2 Dark Down 82.1 166.3 Up 06:24:44 - 06:30:27 -685
Bend 06:27:36 -26.4 Dark Down 82.3 165.1 Up 06:24:45 - 06:30:28 -697
Oregon Observatory 06:27:37 -26.5 Dark Down 82.4 164.0 Up 06:24:45 - 06:30:28 -707
La Pine/Gilchrist 06:27:38 -26.6 Dark Down 82.6 163.3 Up 06:24:46 - 06:30:29 -722
North Lake 06:27:37 -27.2 Dark Down 83.1 166.1 Up 06:24:46 - 06:30:29 -790
Chiloquin 06:27:41 -27.5 Dark Down 83.6 158.0 Up 06:24:49 - 06:30:32 -804
Klamath Falls 06:27:41 -27.8 Dark Down 83.9 157.4 Up 06:24:49 - 06:30:32 -839
Paisley 06:27:38 -27.8 Dark Down 83.7 167.5 Up 06:24:46 - 06:30:29 -856
Lakeview 06:27:38 -28.3 Dark Down 84.3 168.0 Up 06:24:47 - 06:30:30 -911
Fall River/Burney 06:27:43 -29.0 Dark Down 85.1 155.6 Up 06:24:51 - 06:30:34 -963
Cedarville 06:27:39 -29.0 Dark Down 84.9 168.0 Up 06:24:48 - 06:30:31 -979
Susanville 06:27:42 -29.8 Dark Down 85.9 159.6 Up 06:24:51 - 06:30:34 -1056
Greenville 06:27:43 -30.0 Dark Down 86.1 155.0 Up 06:24:52 - 06:30:35 -1067
Gimple 06:27:43 -30.0 Dark Down 86.1 155.9 Up 06:24:52 - 06:30:35 -1071
Quincy 06:27:44 -30.1 Dark Down 86.3 153.7 Up 06:24:52 - 06:30:35 -1085
Portola 06:27:43 -30.4 Dark Down 86.5 158.5 Up 06:24:52 - 06:30:35 -1120
Reno 06:27:42 -30.9 Dark Down 86.9 165.8 Up 06:24:51 - 06:30:34 -1176
Carson City 06:27:43 -31.2 Dark Down 87.3 164.3 Up 06:24:51 - 06:30:34 -1210
Gardnerville 06:27:43 -31.4 Dark Down 87.5 163.7 Up 06:24:52 - 06:30:35 -1235
Yerington 06:27:42 -31.6 Dark Down 87.6 174.7 Up 06:24:50 - 06:30:33 -1259
Hawthorne 06:27:42 -32.2 Dark Down 88.0 185.8 Up 06:24:50 - 06:30:33 -1328
Lee Vining 06:27:44 -32.5 Dark Down 88.6 172.3 Up 06:24:52 - 06:30:35 -1356
Tonopah 06:27:39 -33.1 Dark Down 88.0 221.9 Up 06:24:48 - 06:30:31 -1440
Bishop 06:27:43 -33.3 Dark Down 89.1 206.3 Up 06:24:52 - 06:30:35 -1446
CPSLO 06:27:52 -34.3 Dark Down 88.1 47.7 Up 06:25:01 - 06:30:44 -1519
Beatty 06:27:40 -34.3 Dark Down 88.3 259.4 Up 06:24:49 - 06:30:32 -1569
Indian Springs 06:27:39 -35.0 Dark Down 87.4 270.7 Up 06:24:47 - 06:30:30 -1652
Henderson 06:27:38 -35.7 Dark Down 86.8 280.7 Up 06:24:46 - 06:30:29 -1735
Wildwood 06:27:50 -36.2 Dark Down 87.5 354.2 Up 06:24:58 - 06:30:41 -1737
Dunrhomin 06:27:09 -33.9 Dark Down 78.8 255.2 Up 06:24:17 - 06:30:00 -1739
Laughlin/Bullhead City 06:27:38 -36.6 Dark Down 86.3 293.1 Up 06:24:47 - 06:30:30 -1837
Patrick 06:27:36 -36.6 Dark Down 85.8 287.4 Up 06:24:45 - 06:30:28 -1847
Kingman/Dolan Springs 06:27:37 -36.8 Dark Down 85.9 290.8 Up 06:24:46 - 06:30:29 -1859
Mohave Valley 06:27:39 -36.9 Dark Down 86.1 296.8 Up 06:24:47 - 06:30:30 -1863
Idyllwild 06:27:46 -37.2 Dark Down 86.7 328.4 Up 06:24:54 - 06:30:37 -1867
Lake Havasu City 06:27:39 -37.3 Dark Down 85.8 300.5 Up 06:24:47 - 06:30:30 -1913
Parker 06:27:40 -37.6 Dark Down 85.5 304.3 Up 06:24:48 - 06:30:31 -1947
Blythe 06:27:41 -38.0 Dark Down 85.4 311.2 Up 06:24:50 - 06:30:33 -1982
Calipatria 06:27:44 -38.2 Dark Down 85.6 322.2 Up 06:24:53 - 06:30:36 -1983
Yuma 06:27:43 -38.9 Dark Down 84.8 319.1 Up 06:24:51 - 06:30:34 -2067
George/Scottsdale 06:27:35 -38.8 Dark Down 83.6 298.4 Up 06:24:43 - 06:30:26 -2103

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, (2024/08/11 06:28UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 12.60 107
37Gam Cyg      20:22:13.7 +40:15:24  2.2  6.80 103
25 Cyg         19:59:55.1 +37:02:34  5.0  1.46  98
PPM 083731     19:52:16.5 +36:25:56  7.3  0.20  97
PPM 083732     19:52:18.2 +36:37:48  9.9  0.16  97
342842         19:53:03.1 +36:33:53 15.4        97
Positions are for J2000

Event circumstances last updated at 2021/11/16 00:54:18 UT

Marc W. Buie, Southwest Research Institute

RECON