RECON: TNO occultation with 518151

Event between (518151) 16FH13 and star GA1460:05120301 with event index number of 2545866

Geocentric closest approach at 2028/12/24 09:47:21 UTC

J2000 position of star is 14:28:36.4 +57:28:36
Equinox of date position of star is 14:29:20.4 +57:22:09
Stellar brightness G=12.0, use SENSEUP=16 with the MallinCam and and exposure time of 250 milli-seconds with the QHY174 camera.
Star is 110 degrees from the moon. Moon is 55% illuminated.
Apparent brightness V=23.8

[RECON map]
Object is 21.3 AU from the Sun and 21.3 AU from the Earth.
Apparent velocity is 32.8 km/sec on the sky relative to the star, or, 7.7 arcsec/hr.
The 1-sigma error in the time of the event is 181 seconds.
The 1-sigma cross-track error in the shadow position is 5818 km.
The sky-plane scale is 15424.7 km/arcsec.

The object has an absolute magnitude Hv=10.3
Diameter=53.5 km assuming a 5% albedo -- 1.6 sec chord
Diameter=21.8 km assuming a 30% albedo -- 0.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 518151, (2028/12/24 09:47UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:55.1 +38:48:42  0.0 43.58  82
Mizar          13:25:05.2 +54:46:29  2.3  9.32 116
PPM 034588     14:35:08.4 +56:56:16  6.5  0.87 109
PPM 034530     14:28:34.1 +58:12:21  7.9  0.87 109
PPM 034544     14:30:05.2 +57:02:21  9.0  0.32 110
PPM 034536     14:29:30.1 +57:37:29 10.8  0.28 109
518151         14:29:28.8 +57:20:54 12.0       110
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 8.0 km RECON observability=1.0 and success probability=4.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Wildwood 09:46:35 -63.3 Dark Down 25.4 36.3 Low 09:31:35 - 10:01:35 6347
Quincy 09:46:54 -62.7 Dark Down 29.0 37.5 Low 09:31:54 - 10:01:54 6286
Greenville 09:46:54 -62.6 Dark Down 29.1 37.6 Low 09:31:54 - 10:01:54 6280
Lee Vining 09:46:46 -62.3 Dark Down 28.3 37.4 Low 09:31:46 - 10:01:46 6277
Gimple 09:46:54 -62.5 Dark Down 29.2 37.6 Low 09:31:54 - 10:01:54 6277
Idyllwild 09:46:32 -61.9 Dark Down 26.0 36.7 Low 09:31:32 - 10:01:32 6274
Portola 09:46:53 -62.4 Dark Down 29.1 37.6 Low 09:31:53 - 10:01:53 6273
Gardnerville 09:46:49 -62.3 Dark Down 28.7 37.5 Low 09:31:49 - 10:01:49 6273
Carson City 09:46:50 -62.2 Dark Down 28.9 37.6 Low 09:31:50 - 10:01:50 6267
Fall River/Burney 09:46:57 -62.4 Dark Down 29.6 37.7 Low 09:31:57 - 10:01:57 6266
Bishop 09:46:44 -62.0 Dark Down 28.1 37.4 Low 09:31:44 - 10:01:44 6264
Reno 09:46:51 -62.1 Dark Down 29.2 37.7 Low 09:31:51 - 10:01:51 6257
Yerington 09:46:48 -61.9 Dark Down 29.1 37.7 Low 09:31:48 - 10:01:48 6249
Hawthorne 09:46:47 -61.7 Dark Down 28.9 37.7 Low 09:31:47 - 10:01:47 6242
Klamath Falls 09:47:01 -62.0 Dark Down 30.4 38.0 Up 09:32:01 - 10:02:01 6238
Calipatria 09:46:28 -61.0 Dark Down 26.1 36.7 Low 09:31:28 - 10:01:28 6230
Chiloquin 09:47:02 -61.8 Dark Down 30.6 38.1 Up 09:32:02 - 10:02:02 6229
Beatty 09:46:39 -61.0 Dark Down 28.5 37.6 Low 09:31:39 - 10:01:39 6208
Cedarville 09:46:56 -61.4 Dark Down 30.6 38.3 Up 09:31:56 - 10:01:56 6207
Yuma 09:46:26 -60.4 Dark Down 26.2 36.8 Low 09:31:26 - 10:01:26 6196
Oregon Observatory 09:47:03 -60.8 Dark Down 31.9 38.8 Up 09:32:03 - 10:02:03 6166
Bend 09:47:03 -60.6 Dark Down 32.1 38.9 Up 09:32:03 - 10:02:03 6155
Sisters 09:47:05 -60.6 Dark Down 32.1 38.9 Up 09:32:05 - 10:02:05 6154
Lake Havasu City 09:46:29 -59.8 Dark Down 27.8 37.4 Low 09:31:29 - 10:01:29 6150
Laughlin/Bullhead City 09:46:31 -59.8 Dark Down 28.2 37.6 Low 09:31:31 - 10:01:31 6149
Patrick 09:46:30 -59.2 Dark Down 28.8 37.8 Low 09:31:30 - 10:01:30 6112
Maupin 09:47:06 -59.8 Dark Down 33.0 39.4 Up 09:32:06 - 10:02:06 6103
The Dalles 09:47:06 -59.6 Dark Down 33.3 39.6 Up 09:32:06 - 10:02:06 6089
George/Scottsdale 09:46:21 -57.9 Dark Down 28.4 37.7 Low 09:31:21 - 10:01:21 6045
Toppenish/White Swan 09:47:08 -58.7 Dark Down 34.3 40.2 Up 09:32:08 - 10:02:08 6032
Victoria 09:47:18 -58.8 Dark Down 34.6 40.0 Up 09:32:18 - 10:02:18 6029
Yakima 09:47:08 -58.7 Dark Down 34.4 40.2 Up 09:32:08 - 10:02:08 6028
Ellensburg 09:47:08 -58.4 Dark Down 34.7 40.4 Up 09:32:08 - 10:02:08 6011
PNWRO 09:47:04 -58.1 Dark Down 34.7 40.6 Up 09:32:04 - 10:02:04 5997
Wenatchee 09:47:09 -58.0 Dark Down 35.1 40.7 Up 09:32:09 - 10:02:09 5986
Manson/Chelan 09:47:10 -57.6 Dark Down 35.5 41.0 Up 09:32:10 - 10:02:10 5960
Brewster 09:47:10 -57.3 Dark Down 35.8 41.2 Up 09:32:10 - 10:02:10 5939
Okanogan 09:47:10 -57.0 Dark Down 36.1 41.4 Up 09:32:10 - 10:02:10 5920
Anarchist Mountain Observatory 09:47:11 -56.5 Dark Down 36.7 41.8 Up 09:32:11 - 10:02:11 5885
Oliver 09:47:12 -56.5 Dark Down 36.8 41.8 Up 09:32:12 - 10:02:12 5883
Summerland 09:47:14 -56.3 Dark Down 37.0 42.0 Up 09:32:14 - 10:02:14 5867
Penticton 09:47:13 -56.2 Dark Down 37.0 42.0 Up 09:32:13 - 10:02:13 5867
Peachland 09:47:14 -56.2 Dark Down 37.1 42.0 Up 09:32:14 - 10:02:14 5863
Kelowna 09:47:12 -56.0 Dark Down 37.3 42.2 Up 09:32:12 - 10:02:12 5849
Kamloops 09:47:18 -55.9 Dark Down 37.5 42.3 Up 09:32:18 - 10:02:18 5838
CU-SBO 09:46:28 -51.5 Dark Down 36.6 41.6 Up 09:31:28 - 10:01:28 5585
Nikitin 09:46:28 -51.4 Dark Down 36.7 41.7 Up 09:31:28 - 10:01:28 5579
Dunrhomin 09:46:28 -51.4 Dark Down 36.9 41.8 Up 09:31:28 - 10:01:28 5574
Sleaford 09:47:01 -47.7 Dark Down 44.9 48.9 Up 09:32:01 - 10:02:01 5249

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 518151, (2028/12/24 09:47UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:08  0.0 43.58  82
Mizar          13:23:55.9 +54:55:31  2.3  9.32 116
PPM 034588     14:34:16.5 +57:03:50  6.5  0.87 109
PPM 034530     14:27:42.7 +58:20:05  7.9  0.87 109
PPM 034544     14:29:12.5 +57:10:02  9.0  0.32 110
PPM 034536     14:28:38.1 +57:45:11 10.8  0.28 109
518151         14:28:36.4 +57:28:36 12.0       109
Positions are for J2000

Event circumstances last updated at 2024/04/24 02:56:14 UT

Marc W. Buie, Southwest Research Institute

RECON