RECON: TNO occultation with 13RG98

Event between 13RG98 and star GA0700:00604470 with event index number of 2071056

Geocentric closest approach at 2024/02/10 02:20:11 UTC

J2000 position of star is 05:48:15.0 -18:34:56
Equinox of date position of star is 05:49:12.5 -18:34:34
Stellar brightness G=15.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 111 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=22.3

[RECON map]
TNO is 20.6 AU from the Sun and 20.1 AU from the Earth.
The TNO is moving 22.0 km/sec on the sky relative to the star, or, 5.4 arcsec/hr.
The 1-sigma error in the time of the event is 76 seconds.
The 1-sigma cross-track error in the shadow position is 2054 km.
The sky-plane scale is 14607.3 km/arcsec.

The TNO has an absolute magnitude Hv=9.0
Diameter=94.2 km assuming a 5% albedo -- 4.3 sec chord
Diameter=38.5 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 13RG98, (2024/02/10 02:21UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:15:41.9 -08:10:32  0.1 13.22 108
Arneb          05:33:47.7 -17:48:24  2.6  3.76 108
PPM 216182     05:44:25.0 -18:32:53  5.7  1.16 110
PPM 216300     05:49:28.7 -18:41:51  8.5  0.13 111
PPM 216291     05:48:53.0 -18:36:29  9.0  0.11 111
13RG98         05:49:18.3 -18:34:32 15.7       111
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 51.9 km RECON observability=0.1 and success probability=8.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 02:24:24 -21.6 Dark Down 17.8 162.9 Really Low 02:17:32 - 02:31:16 3757
Dunrhomin 02:24:07 -22.5 Dark Down 29.2 162.0 Low 02:17:15 - 02:30:59 3256
Kelowna 02:24:40 -13.1 AT Down 16.4 149.7 Really Low 02:17:48 - 02:31:32 2851
Kamloops 02:24:41 -12.6 AT Down 15.4 149.0 Really Low 02:17:49 - 02:31:33 2849
Peachland 02:24:40 -12.9 AT Down 16.4 149.4 Really Low 02:17:48 - 02:31:32 2827
Penticton 02:24:40 -13.0 AT Down 16.6 149.6 Really Low 02:17:48 - 02:31:32 2825
Summerland 02:24:40 -12.9 AT Down 16.5 149.5 Really Low 02:17:48 - 02:31:32 2823
Anarchist Mountain Observatory 02:24:39 -13.0 AT Down 17.1 149.7 Really Low 02:17:47 - 02:31:31 2805
Oliver 02:24:39 -12.9 AT Down 16.9 149.5 Really Low 02:17:47 - 02:31:31 2804
Tonasket 02:24:39 -13.0 AT Down 17.4 149.6 Really Low 02:17:47 - 02:31:31 2782
Okanogan 02:24:39 -12.8 AT Down 17.6 149.4 Really Low 02:17:47 - 02:31:31 2752
Brewster 02:24:39 -12.6 AT Down 17.8 149.1 Really Low 02:17:47 - 02:31:31 2723
Manson/Chelan 02:24:39 -12.4 AT Down 17.8 148.8 Really Low 02:17:47 - 02:31:31 2688
Pasco 02:24:37 -12.8 AT Down 19.6 149.4 Really Low 02:17:45 - 02:31:29 2649
PNWRO 02:24:36 -13.0 AT Down 19.9 149.6 Really Low 02:17:44 - 02:31:28 2648
Wenatchee 02:24:39 -12.2 AT Down 18.2 148.5 Really Low 02:17:47 - 02:31:31 2648
Ellensburg 02:24:39 -12.0 NT Down 18.5 148.3 Really Low 02:17:47 - 02:31:31 2608
Yakima 02:24:39 -11.9 NT Down 18.8 148.2 Really Low 02:17:47 - 02:31:31 2581
Toppenish/White Swan 02:24:38 -12.0 NT Down 19.0 148.3 Really Low 02:17:46 - 02:31:30 2578
Victoria 02:24:43 -10.3 NT Down 16.1 145.9 Really Low 02:17:51 - 02:31:35 2536
Goldendale 02:24:38 -11.6 NT Down 19.4 147.8 Really Low 02:17:46 - 02:31:30 2516
The Dalles 02:24:39 -11.3 NT Down 19.4 147.4 Really Low 02:17:47 - 02:31:31 2479
Maupin 02:24:38 -11.3 NT Down 19.8 147.4 Really Low 02:17:46 - 02:31:30 2458
George/Scottsdale 02:24:08 -16.7 AT Down 33.2 153.5 Up 02:17:16 - 02:31:00 2399
Redmond 02:24:37 -11.1 NT Down 20.5 147.2 Low 02:17:45 - 02:31:29 2394
Bend 02:24:37 -11.0 NT Down 20.6 147.0 Low 02:17:45 - 02:31:29 2371
Sisters 02:24:38 -10.8 NT Down 20.3 146.8 Low 02:17:46 - 02:31:30 2370
Oregon Observatory 02:24:37 -10.9 NT Down 20.7 146.8 Low 02:17:45 - 02:31:29 2351
Patrick 02:24:14 -15.3 AT Down 31.0 151.9 Up 02:17:22 - 02:31:06 2347
North Lake 02:24:36 -11.1 NT Down 21.5 147.2 Low 02:17:44 - 02:31:28 2344
La Pine/Gilchrist 02:24:38 -10.8 NT Down 20.9 146.7 Low 02:17:46 - 02:31:30 2334
Paisley 02:24:35 -11.3 NT Down 22.1 147.4 Low 02:17:43 - 02:31:27 2332
Kingman/Dolan Springs 02:24:14 -15.1 AT Down 31.1 151.7 Up 02:17:22 - 02:31:06 2319
Lakeview 02:24:34 -11.4 NT Down 22.6 147.5 Low 02:17:42 - 02:31:26 2312
Henderson 02:24:17 -14.5 AT Down 30.0 151.0 Low 02:17:25 - 02:31:09 2301
Indian Springs 02:24:20 -14.0 AT Down 29.2 150.5 Low 02:17:28 - 02:31:12 2283
Cedarville 02:24:33 -11.4 NT Down 23.2 147.5 Low 02:17:41 - 02:31:25 2281
Laughlin/Bullhead City 02:24:15 -14.7 AT Down 30.9 151.2 Up 02:17:23 - 02:31:07 2278
Tonopah 02:24:24 -13.1 AT Down 27.4 149.4 Low 02:17:32 - 02:31:16 2264
Mohave Valley 02:24:14 -14.7 AT Down 31.1 151.1 Up 02:17:22 - 02:31:06 2262
Lake Havasu City 02:24:12 -14.8 AT Down 31.6 151.2 Up 02:17:20 - 02:31:04 2257
Chiloquin 02:24:36 -10.3 NT Down 21.7 146.2 Low 02:17:44 - 02:31:28 2237
Parker 02:24:13 -14.8 AT Down 31.9 151.1 Up 02:17:21 - 02:31:05 2237
Beatty 02:24:21 -13.2 AT Down 28.5 149.5 Low 02:17:29 - 02:31:13 2224
Klamath Falls 02:24:36 -10.3 NT Down 22.0 146.2 Low 02:17:44 - 02:31:28 2220
Hawthorne 02:24:27 -12.0 AT Down 26.4 148.2 Low 02:17:35 - 02:31:19 2193
Yerington 02:24:28 -11.7 NT Down 25.8 147.8 Low 02:17:36 - 02:31:20 2186
Blythe 02:24:12 -14.5 AT Down 32.2 150.7 Up 02:17:20 - 02:31:04 2182
Reno 02:24:30 -11.3 NT Down 25.0 147.3 Low 02:17:38 - 02:31:22 2176
Susanville 02:24:32 -10.8 NT Down 24.0 146.8 Low 02:17:40 - 02:31:24 2176
Fall River/Burney 02:24:34 -10.4 NT Down 23.1 146.2 Low 02:17:42 - 02:31:26 2167
Carson City 02:24:29 -11.3 NT Down 25.3 147.2 Low 02:17:37 - 02:31:21 2154
Portola 02:24:31 -10.9 NT Down 24.5 146.8 Low 02:17:39 - 02:31:23 2149
Gimple 02:24:32 -10.6 NT Down 24.1 146.5 Low 02:17:40 - 02:31:24 2143
Gardnerville 02:24:29 -11.3 NT Down 25.6 147.2 Low 02:17:37 - 02:31:21 2141
Greenville 02:24:32 -10.6 NT Down 24.1 146.4 Low 02:17:40 - 02:31:24 2137
Bishop 02:24:25 -12.0 AT Down 27.5 148.1 Low 02:17:33 - 02:31:17 2135
Quincy 02:24:32 -10.5 NT Down 24.2 146.4 Low 02:17:40 - 02:31:24 2124
Yuma 02:24:10 -14.3 AT Down 33.0 150.3 Up 02:17:18 - 02:31:02 2122
Lee Vining 02:24:27 -11.6 NT Down 26.7 147.5 Low 02:17:35 - 02:31:19 2122
Calipatria 02:24:13 -13.6 AT Down 32.3 149.6 Up 02:17:21 - 02:31:05 2080
Idyllwild 02:24:16 -12.8 AT Down 31.3 148.6 Up 02:17:24 - 02:31:08 2028
Wildwood 02:24:19 -11.3 NT Down 30.1 146.9 Up 02:17:27 - 02:31:11 1909
CPSLO 02:24:24 -9.9 NT Down 28.2 145.3 Low 02:17:32 - 02:31:16 1837

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 13RG98, (2024/02/10 02:21UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:14:32.3 -08:12:06  0.1 13.22 108
Arneb          05:32:43.8 -17:49:20  2.6  3.76 108
PPM 216182     05:43:21.7 -18:33:27  5.7  1.16 110
PPM 216300     05:48:25.5 -18:42:15  8.5  0.13 111
PPM 216291     05:47:49.7 -18:36:53  9.0  0.11 111
13RG98         05:48:15.0 -18:34:56 15.7       111
Positions are for J2000

Event circumstances last updated at 2021/11/26 00:07:13 UT

Marc W. Buie, Southwest Research Institute

RECON