RECON: TNO occultation with 15AD298

Event between 15AD298 and star GA0660:00429233 with event index number of 2574777

Geocentric closest approach at 2024/03/25 03:01:54 UTC

J2000 position of star is 05:08:18.1 -23:32:03
Equinox of date position of star is 05:09:15.2 -23:30:22
Stellar brightness G=14.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 105 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=21.8

[RECON map]
TNO is 20.7 AU from the Sun and 21.0 AU from the Earth.
The TNO is moving 28.2 km/sec on the sky relative to the star, or, 6.7 arcsec/hr.
The 1-sigma error in the time of the event is 37 seconds.
The 1-sigma cross-track error in the shadow position is 1280 km.
The sky-plane scale is 15200.8 km/arcsec.

The TNO has an absolute magnitude Hv=8.3
Diameter=133.7 km assuming a 5% albedo -- 4.7 sec chord
Diameter=54.6 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURS
 
 
 
 
 
 

Star training set for 15AD298, (2024/03/25 03:02UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:15:42.2 -08:10:32  0.1 15.41 105
Nihal          05:29:17.1 -20:44:30  2.8  5.39 100
PPM 248396     05:04:53.6 -24:21:22  5.8  1.32 106
PPM 248515     05:10:26.3 -23:05:22  7.4  0.49 105
PPM 248496     05:09:47.1 -23:20:24  9.2  0.20 105
15AD298        05:09:18.8 -23:30:15 14.8       105
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 26.3 km RECON observability=0.1 and success probability=2.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 03:05:24 -6.1 NT Up 13.4 207.1 Really Low 03:01:50 - 03:08:59 -844
Kamloops 03:05:27 -7.6 NT Up 10.6 209.6 Really Low 03:01:52 - 03:09:01 -905
Peachland 03:05:28 -8.2 NT Up 11.2 210.2 Really Low 03:01:53 - 03:09:02 -993
Kelowna 03:05:28 -8.3 NT Up 11.0 210.5 Really Low 03:01:53 - 03:09:02 -1004
Summerland 03:05:27 -8.3 NT Up 11.3 210.3 Really Low 03:01:53 - 03:09:02 -1008
Penticton 03:05:28 -8.4 NT Up 11.3 210.4 Really Low 03:01:53 - 03:09:02 -1018
Oliver 03:05:28 -8.4 NT Up 11.6 210.5 Really Low 03:01:53 - 03:09:02 -1039
Anarchist Mountain Observatory 03:05:27 -8.6 NT Up 11.7 210.7 Really Low 03:01:53 - 03:09:02 -1061
Tonasket 03:05:27 -8.6 NT Up 12.0 210.6 Really Low 03:01:53 - 03:09:02 -1075
Manson/Chelan 03:05:27 -8.3 NT Up 12.9 210.1 Really Low 03:01:52 - 03:09:01 -1079
Okanogan 03:05:27 -8.6 NT Up 12.3 210.5 Really Low 03:01:53 - 03:09:02 -1086
Brewster 03:05:27 -8.5 NT Up 12.6 210.4 Really Low 03:01:53 - 03:09:02 -1090
Wenatchee 03:05:26 -8.3 NT Up 13.4 210.0 Really Low 03:01:52 - 03:09:01 -1097
Ellensburg 03:05:26 -8.3 NT Up 13.9 209.8 Really Low 03:01:52 - 03:09:01 -1108
Yakima 03:05:26 -8.3 NT Up 14.2 209.9 Really Low 03:01:51 - 03:09:00 -1131
The Dalles 03:05:25 -8.1 NT Up 15.3 209.5 Really Low 03:01:50 - 03:08:59 -1150
Toppenish/White Swan 03:05:26 -8.5 NT Up 14.3 210.1 Really Low 03:01:52 - 03:09:01 -1154
Goldendale 03:05:25 -8.3 NT Up 15.0 209.8 Really Low 03:01:51 - 03:09:00 -1160
Maupin 03:05:25 -8.3 NT Up 15.6 209.6 Really Low 03:01:50 - 03:08:59 -1181
Sisters 03:05:24 -8.1 NT Up 16.6 209.3 Really Low 03:01:49 - 03:08:58 -1201
Bend 03:05:24 -8.3 NT Up 16.7 209.6 Really Low 03:01:50 - 03:08:59 -1232
Oregon Observatory 03:05:24 -8.2 NT Up 16.9 209.5 Really Low 03:01:50 - 03:08:59 -1234
PNWRO 03:05:27 -9.6 NT Up 14.1 211.4 Really Low 03:01:53 - 03:09:02 -1271
Chiloquin 03:05:23 -8.2 NT Up 18.2 209.3 Really Low 03:01:49 - 03:08:58 -1284
North Lake 03:05:24 -8.8 NT Up 17.2 210.1 Really Low 03:01:49 - 03:08:58 -1308
Klamath Falls 03:05:22 -8.3 NT Up 18.4 209.4 Really Low 03:01:48 - 03:08:57 -1310
Fall River/Burney 03:05:23 -8.8 NT Up 19.3 210.0 Really Low 03:01:48 - 03:08:57 -1406
Lakeview 03:05:24 -9.4 NT Up 17.9 210.7 Really Low 03:01:49 - 03:08:58 -1409
Cedarville 03:05:24 -9.6 NT Up 18.4 211.0 Really Low 03:01:49 - 03:08:58 -1461
Greenville 03:05:22 -9.3 NT Up 19.9 210.5 Really Low 03:01:47 - 03:08:56 -1492
Susanville 03:05:23 -9.5 NT Up 19.6 210.7 Really Low 03:01:48 - 03:08:57 -1496
Gimple 03:05:22 -9.4 NT Up 19.9 210.6 Really Low 03:01:47 - 03:08:56 -1498
Quincy 03:05:22 -9.3 NT Up 20.1 210.6 Low 03:01:47 - 03:08:56 -1505
Portola 03:05:22 -9.7 NT Up 20.0 211.0 Low 03:01:48 - 03:08:57 -1546
Sleaford 03:05:36 -15.7 AT Up 4.2 221.8 Really Low 03:02:02 - 03:09:11 -1594
Reno 03:05:23 -10.3 NT Up 20.0 211.6 Really Low 03:01:48 - 03:08:57 -1608
Carson City 03:05:22 -10.3 NT Up 20.3 211.7 Low 03:01:47 - 03:08:56 -1632
Gardnerville 03:05:22 -10.4 NT Up 20.5 211.8 Low 03:01:47 - 03:08:56 -1651
Yerington 03:05:22 -10.9 NT Up 20.2 212.3 Low 03:01:48 - 03:08:57 -1689
Hawthorne 03:05:23 -11.4 NT Up 20.4 212.9 Low 03:01:49 - 03:08:58 -1756
Lee Vining 03:05:22 -11.1 NT Up 21.0 212.6 Low 03:01:48 - 03:08:57 -1757
Bishop 03:05:22 -11.8 NT Up 21.2 213.3 Low 03:01:48 - 03:08:57 -1847
Tonopah 03:05:23 -12.6 AT Up 20.1 214.2 Low 03:01:49 - 03:08:58 -1886
Beatty 03:05:23 -13.2 AT Up 20.9 214.8 Low 03:01:48 - 03:08:57 -1994
Wildwood 03:05:18 -12.3 AT Up 24.1 213.9 Low 03:01:44 - 03:08:53 -2043
Indian Springs 03:05:23 -14.1 AT Up 20.6 215.8 Low 03:01:49 - 03:08:58 -2093
Henderson 03:05:23 -14.8 AT Up 20.8 216.5 Low 03:01:49 - 03:08:58 -2178
Idyllwild 03:05:19 -13.9 AT Up 23.5 215.6 Low 03:01:45 - 03:08:54 -2207
Laughlin/Bullhead City 03:05:23 -15.3 AT Up 21.3 217.1 Low 03:01:48 - 03:08:57 -2267
Mohave Valley 03:05:23 -15.4 AT Up 21.5 217.1 Low 03:01:49 - 03:08:58 -2286
Patrick 03:05:23 -15.8 AT Up 20.7 217.6 Low 03:01:49 - 03:08:58 -2301
Kingman/Dolan Springs 03:05:23 -15.7 AT Up 21.0 217.5 Low 03:01:49 - 03:08:58 -2303
Lake Havasu City 03:05:22 -15.6 AT Up 21.7 217.4 Low 03:01:48 - 03:08:57 -2331
Calipatria 03:05:20 -15.0 AT Up 23.4 216.8 Low 03:01:45 - 03:08:54 -2336
Parker 03:05:22 -15.7 AT Up 21.9 217.5 Low 03:01:47 - 03:08:56 -2358
Yuma 03:05:20 -15.8 AT Up 23.3 217.6 Low 03:01:45 - 03:08:54 -2431
Dunrhomin 03:05:34 -20.9 Dark Up 12.5 223.6 Really Low 03:01:59 - 03:09:08 -2530
CU-SBO 03:05:34 -20.9 Dark Up 12.8 223.5 Really Low 03:01:59 - 03:09:08 -2543
George/Scottsdale 03:05:23 -17.8 AT Up 21.0 219.6 Low 03:01:49 - 03:08:58 -2563

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 15AD298, (2024/03/25 03:02UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:14:32.3 -08:12:06  0.1 15.41 105
Nihal          05:28:14.7 -20:45:36  2.8  5.39 100
PPM 248396     05:03:53.3 -24:23:19  5.8  1.32 106
PPM 248515     05:09:25.2 -23:07:07  7.4  0.49 105
PPM 248496     05:08:46.2 -23:22:11  9.2  0.20 105
15AD298        05:08:18.1 -23:32:03 14.8       105
Positions are for J2000

Event circumstances last updated at 2022/10/11 04:17:36 UT

Marc W. Buie, Southwest Research Institute

RECON