RECON: TNO occultation with 15KJ174

Event between 15KJ174 and star GA0760:05707263 with event index number of 2453371

Geocentric closest approach at 2023/05/18 06:34:04 UTC

J2000 position of star is 16:22:52.0 -13:06:57
Equinox of date position of star is 16:24:05.2 -13:09:55
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 153 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=24.1

[RECON map]
TNO is 42.5 AU from the Sun and 41.5 AU from the Earth.
The TNO is moving 24.5 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 195 seconds.
The 1-sigma cross-track error in the shadow position is 1975 km.
The sky-plane scale is 30090.2 km/arcsec.

The TNO has an absolute magnitude Hv=7.8
Diameter=155.6 km assuming a 5% albedo -- 6.6 sec chord
Diameter=63.5 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 15KJ174, (2023/05/18 06:34UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:50.7 -26:28:55  0.9 13.40 150
13Zet Oph      16:38:26.9 -10:36:45  2.6  4.33 149
PPM 231511     16:20:19.8 -14:55:41  5.8  1.99 154
PPM 231577     16:22:39.3 -13:09:34  8.4  0.37 153
PPM 231616     16:24:05.9 -13:15:02  8.6  0.08 153
15KJ174        16:24:10.6 -13:10:08 16.5       152
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 4.6 sigma about the mid-time.
The median site spacing is 17.5 km RECON observability=1.0 and success probability=12.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 06:36:16 -18.2 Dark Down 21.3 148.2 Low 06:21:16 - 06:51:16 2700
Kelowna 06:36:17 -18.5 Dark Down 21.6 148.0 Low 06:21:17 - 06:51:17 2673
Peachland 06:36:17 -18.6 Dark Down 21.6 147.7 Low 06:21:17 - 06:51:17 2660
Summerland 06:36:17 -18.7 Dark Down 21.7 147.7 Low 06:21:17 - 06:51:17 2653
Penticton 06:36:17 -18.8 Dark Down 21.8 147.8 Low 06:21:17 - 06:51:17 2651
Oliver 06:36:18 -19.1 Dark Down 22.1 147.7 Low 06:21:18 - 06:51:18 2629
Anarchist Mountain Observatory 06:36:17 -19.3 Dark Down 22.3 147.9 Low 06:21:17 - 06:51:17 2623
Tonasket 06:36:18 -19.6 Dark Down 22.6 147.8 Low 06:21:18 - 06:51:18 2602
Okanogan 06:36:18 -19.9 Dark Down 22.8 147.5 Low 06:21:18 - 06:51:18 2577
Brewster 06:36:19 -20.1 Dark Down 23.0 147.3 Low 06:21:19 - 06:51:19 2556
Manson/Chelan 06:36:20 -20.2 Dark Down 23.0 146.9 Low 06:21:20 - 06:51:20 2534
Victoria 06:36:28 -18.8 Dark Down 21.3 143.9 Low 06:21:28 - 06:51:28 2503
Wenatchee 06:36:22 -20.6 Dark Down 23.4 146.6 Low 06:21:22 - 06:51:22 2499
Ellensburg 06:36:23 -21.0 Dark Down 23.6 146.3 Low 06:21:23 - 06:51:23 2468
Pasco 06:36:20 -22.0 Dark Down 24.8 147.5 Low 06:21:20 - 06:51:20 2450
Yakima 06:36:23 -21.3 Dark Down 23.9 146.2 Low 06:21:23 - 06:51:23 2440
PNWRO 06:36:20 -22.3 Dark Down 25.1 147.7 Low 06:21:20 - 06:51:20 2439
Toppenish/White Swan 06:36:23 -21.6 Dark Down 24.2 146.3 Low 06:21:23 - 06:51:23 2430
Goldendale 06:36:25 -22.0 Dark Down 24.5 145.7 Low 06:21:25 - 06:51:25 2383
Dunrhomin 06:35:43 -30.0 Dark Down 34.5 160.7 Up 06:20:43 - 06:50:43 2363
The Dalles 06:36:26 -22.1 Dark Down 24.5 145.3 Low 06:21:26 - 06:51:26 2359
Maupin 06:36:26 -22.5 Dark Down 24.9 145.3 Low 06:21:26 - 06:51:26 2333
Redmond 06:36:28 -23.3 Dark Down 25.6 145.0 Low 06:21:28 - 06:51:28 2269
Sisters 06:36:28 -23.2 Dark Down 25.4 144.6 Low 06:21:28 - 06:51:28 2261
Bend 06:36:28 -23.5 Dark Down 25.7 144.8 Low 06:21:28 - 06:51:28 2250
Oregon Observatory 06:36:29 -23.6 Dark Down 25.8 144.6 Low 06:21:29 - 06:51:29 2235
La Pine/Gilchrist 06:36:29 -23.8 Dark Down 26.0 144.5 Low 06:21:29 - 06:51:29 2219
North Lake 06:36:28 -24.4 Dark Down 26.6 145.0 Low 06:21:28 - 06:51:28 2203
Paisley 06:36:28 -25.0 Dark Down 27.2 145.2 Low 06:21:28 - 06:51:28 2172
Lakeview 06:36:28 -25.5 Dark Down 27.7 145.2 Low 06:21:28 - 06:51:28 2140
Chiloquin 06:36:31 -24.7 Dark Down 26.7 143.8 Low 06:21:31 - 06:51:31 2131
Klamath Falls 06:36:32 -25.1 Dark Down 27.0 143.8 Low 06:21:32 - 06:51:32 2108
Cedarville 06:36:27 -26.2 Dark Down 28.3 145.2 Low 06:21:27 - 06:51:27 2097
Fall River/Burney 06:36:31 -26.3 Dark Down 28.2 143.8 Low 06:21:31 - 06:51:31 2030
Susanville 06:36:30 -27.1 Dark Down 29.0 144.4 Low 06:21:30 - 06:51:30 2002
Gimple 06:36:31 -27.3 Dark Down 29.1 144.1 Low 06:21:31 - 06:51:31 1976
Greenville 06:36:31 -27.2 Dark Down 29.1 144.0 Low 06:21:31 - 06:51:31 1974
Portola 06:36:30 -27.7 Dark Down 29.6 144.4 Low 06:21:30 - 06:51:30 1962
Quincy 06:36:31 -27.4 Dark Down 29.3 143.9 Low 06:21:31 - 06:51:31 1959
Reno 06:36:28 -28.1 Dark Down 30.1 144.9 Up 06:21:28 - 06:51:28 1958
Yerington 06:36:27 -28.8 Dark Down 30.8 145.4 Up 06:21:27 - 06:51:27 1933
Carson City 06:36:28 -28.5 Dark Down 30.4 144.8 Up 06:21:28 - 06:51:28 1931
Gardnerville 06:36:29 -28.7 Dark Down 30.6 144.8 Up 06:21:29 - 06:51:29 1914
Tonopah 06:36:22 -30.2 Dark Down 32.4 147.0 Up 06:21:22 - 06:51:22 1911
Hawthorne 06:36:26 -29.4 Dark Down 31.4 145.7 Up 06:21:26 - 06:51:26 1911
Lee Vining 06:36:28 -29.8 Dark Down 31.7 145.1 Up 06:21:28 - 06:51:28 1855
Indian Springs 06:36:18 -32.0 Dark Down 34.3 148.1 Up 06:21:18 - 06:51:18 1835
Beatty 06:36:21 -31.4 Dark Down 33.6 147.1 Up 06:21:21 - 06:51:21 1833
Bishop 06:36:26 -30.5 Dark Down 32.5 145.6 Up 06:21:26 - 06:51:26 1827
Henderson 06:36:16 -32.7 Dark Down 35.1 148.6 Up 06:21:16 - 06:51:16 1811
Patrick 06:36:13 -33.5 Dark Down 36.1 149.6 Up 06:21:13 - 06:51:13 1791
Kingman/Dolan Springs 06:36:14 -33.7 Dark Down 36.2 149.3 Up 06:21:14 - 06:51:14 1769
Laughlin/Bullhead City 06:36:15 -33.6 Dark Down 36.0 148.7 Up 06:21:15 - 06:51:15 1753
Mohave Valley 06:36:16 -33.9 Dark Down 36.2 148.7 Up 06:21:16 - 06:51:16 1731
George/Scottsdale 06:36:07 -35.6 Dark Down 38.4 151.2 Up 06:21:07 - 06:51:07 1708
Lake Havasu City 06:36:15 -34.3 Dark Down 36.7 148.8 Up 06:21:15 - 06:51:15 1706
Parker 06:36:15 -34.6 Dark Down 37.0 148.7 Up 06:21:15 - 06:51:15 1678
Blythe 06:36:17 -35.1 Dark Down 37.3 148.1 Up 06:21:17 - 06:51:17 1628
CPSLO 06:36:34 -31.8 Dark Down 33.1 142.5 Up 06:21:34 - 06:51:34 1602
Idyllwild 06:36:23 -34.4 Dark Down 36.3 145.9 Up 06:21:23 - 06:51:23 1582
Calipatria 06:36:19 -35.3 Dark Down 37.3 146.9 Up 06:21:19 - 06:51:19 1563
Wildwood 06:36:29 -33.6 Dark Down 35.1 144.1 Up 06:21:29 - 06:51:29 1559
Yuma 06:36:17 -36.0 Dark Down 38.1 147.7 Up 06:21:17 - 06:51:17 1551

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 15KJ174, (2023/05/18 06:34UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 13.40 150
13Zet Oph      16:37:09.6 -10:34:01  2.6  4.33 149
PPM 231511     16:19:00.4 -14:52:22  5.8  1.99 154
PPM 231577     16:21:20.7 -13:06:19  8.4  0.37 153
PPM 231616     16:22:47.3 -13:11:51  8.6  0.08 153
15KJ174        16:22:52.0 -13:06:57 16.5       153
Positions are for J2000

Event circumstances last updated at 2021/10/08 00:58:44 UT

Marc W. Buie, Southwest Research Institute

RECON