RECON: TNO occultation with 468861

Event between (468861) 13LU28 and star GA1260:03129796 with event index number of 2655296

Geocentric closest approach at 2024/12/29 11:17:14 UTC

J2000 position of star is 07:23:22.9 +37:33:12
Equinox of date position of star is 07:24:53.4 +37:30:30
Stellar brightness G=12.5, use SENSEUP=16 with the MallinCam and and exposure time of 250 milli-seconds with the QHY174 camera.
Star is 152 degrees from the moon. Moon is 3% illuminated.
TNO apparent brightness V=17.8

[RECON map]
TNO is 8.8 AU from the Sun and 7.9 AU from the Earth.
The TNO is moving 39.6 km/sec on the sky relative to the star, or, 25.0 arcsec/hr.
The 1-sigma error in the time of the event is 16 seconds.
The 1-sigma cross-track error in the shadow position is 2091 km.
The sky-plane scale is 5707.6 km/arcsec.

The TNO has an absolute magnitude Hv=8.4
Diameter=128.2 km assuming a 5% albedo -- 3.2 sec chord
Diameter=52.4 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 468861, (2024/12/29 11:17UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:50.7 +27:57:50  1.1 10.58 148
65 Aur         07:23:42.6 +36:42:40  5.1  0.84 153
PPM 072702     07:23:11.9 +37:36:48  7.7  0.39 152
PPM 072749     07:25:27.0 +37:21:38 11.9  0.16 152
468861         07:25:03.7 +37:30:12 12.5       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 5.0 sigma about the mid-time.
The median site spacing is 28.5 km RECON observability=1.0 and success probability=24.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 11:15:52 -34.9 Dark Down 52.2 267.9 Up 11:14:01 - 11:17:42 2872
Kamloops 11:16:10 -43.9 Dark Down 61.2 257.0 Up 11:14:19 - 11:18:00 2396
Kelowna 11:16:08 -43.6 Dark Down 60.9 259.3 Up 11:14:17 - 11:17:58 2329
Peachland 11:16:08 -43.8 Dark Down 61.1 259.2 Up 11:14:17 - 11:17:58 2312
Summerland 11:16:08 -43.8 Dark Down 61.0 259.6 Up 11:14:17 - 11:17:58 2298
Penticton 11:16:07 -43.8 Dark Down 61.0 259.8 Up 11:14:17 - 11:17:58 2294
Oliver 11:16:07 -43.9 Dark Down 61.0 260.4 Up 11:14:16 - 11:17:57 2257
Anarchist Mountain Observatory 11:16:06 -43.8 Dark Down 60.9 260.9 Up 11:14:16 - 11:17:57 2243
Tonasket 11:16:06 -43.9 Dark Down 61.0 261.4 Up 11:14:16 - 11:17:57 2210
Okanogan 11:16:06 -44.1 Dark Down 61.2 261.9 Up 11:14:16 - 11:17:57 2172
Brewster 11:16:06 -44.3 Dark Down 61.4 262.2 Up 11:14:16 - 11:17:57 2140
Victoria 11:16:12 -46.5 Dark Down 63.6 257.9 Up 11:14:22 - 11:18:03 2115
Manson/Chelan 11:16:07 -44.6 Dark Down 61.6 262.2 Up 11:14:16 - 11:17:57 2110
Wenatchee 11:16:06 -44.8 Dark Down 61.8 262.9 Up 11:14:16 - 11:17:57 2057
Ellensburg 11:16:06 -45.1 Dark Down 62.0 263.5 Up 11:14:16 - 11:17:57 2010
Yakima 11:16:06 -45.2 Dark Down 62.1 264.2 Up 11:14:16 - 11:17:57 1967
Toppenish/White Swan 11:16:06 -45.1 Dark Down 62.0 264.8 Up 11:14:15 - 11:17:56 1947
PNWRO 11:16:03 -44.2 Dark Down 61.0 266.7 Up 11:14:12 - 11:17:53 1940
Goldendale 11:16:06 -45.6 Dark Down 62.3 265.5 Up 11:14:15 - 11:17:56 1880
The Dalles 11:16:06 -45.9 Dark Down 62.6 265.6 Up 11:14:16 - 11:17:57 1849
Maupin 11:16:06 -45.9 Dark Down 62.5 266.5 Up 11:14:15 - 11:17:56 1807
Dunrhomin 11:15:35 -34.8 Dark Down 50.6 283.2 Up 11:13:45 - 11:17:26 1735
CU-SBO 11:15:35 -34.9 Dark Down 50.6 283.4 Up 11:13:45 - 11:17:26 1707
Sisters 11:16:06 -46.4 Dark Down 62.9 267.8 Up 11:14:15 - 11:17:56 1704
Bend 11:16:05 -46.3 Dark Down 62.7 268.5 Up 11:14:15 - 11:17:56 1684
Oregon Observatory 11:16:05 -46.4 Dark Down 62.8 268.7 Up 11:14:15 - 11:17:56 1663
North Lake 11:16:04 -46.2 Dark Down 62.5 270.3 Up 11:14:13 - 11:17:54 1606
Chiloquin 11:16:05 -47.0 Dark Down 63.2 271.0 Up 11:14:14 - 11:17:55 1514
Lakeview 11:16:02 -46.0 Dark Down 62.0 272.7 Up 11:14:11 - 11:17:52 1506
Klamath Falls 11:16:04 -47.0 Dark Down 63.1 271.8 Up 11:14:14 - 11:17:55 1479
Cedarville 11:16:01 -46.0 Dark Down 61.9 274.0 Up 11:14:11 - 11:17:52 1440
Fall River/Burney 11:16:03 -47.0 Dark Down 62.7 274.3 Up 11:14:12 - 11:17:53 1361
Susanville 11:16:01 -46.5 Dark Down 62.1 275.9 Up 11:14:11 - 11:17:52 1311
Gimple 11:16:01 -46.7 Dark Down 62.3 276.3 Up 11:14:11 - 11:17:52 1276
Greenville 11:16:01 -46.8 Dark Down 62.3 276.2 Up 11:14:11 - 11:17:52 1275
Quincy 11:16:01 -46.8 Dark Down 62.3 276.6 Up 11:14:11 - 11:17:52 1253
Portola 11:16:00 -46.4 Dark Down 61.9 277.1 Up 11:14:10 - 11:17:51 1250
Reno 11:15:59 -46.0 Dark Down 61.4 277.9 Up 11:14:08 - 11:17:49 1237
Carson City 11:15:59 -46.0 Dark Down 61.3 278.5 Up 11:14:08 - 11:17:49 1199
Yerington 11:15:57 -45.6 Dark Down 60.8 279.1 Up 11:14:07 - 11:17:48 1194
Gardnerville 11:15:58 -46.0 Dark Down 61.3 279.0 Up 11:14:08 - 11:17:49 1174
Hawthorne 11:15:56 -45.2 Dark Down 60.3 280.2 Up 11:14:05 - 11:17:46 1157
Tonopah 11:15:53 -44.1 Dark Down 59.2 281.5 Up 11:14:02 - 11:17:43 1144
Lee Vining 11:15:56 -45.6 Dark Down 60.6 281.0 Up 11:14:06 - 11:17:47 1085
Bishop 11:15:55 -45.1 Dark Down 59.9 282.2 Up 11:14:04 - 11:17:45 1040
Beatty 11:15:51 -43.8 Dark Down 58.6 283.5 Up 11:14:01 - 11:17:42 1033
Indian Springs 11:15:49 -43.0 Dark Down 57.7 284.3 Up 11:13:59 - 11:17:40 1028
Henderson 11:15:47 -42.4 Dark Down 57.0 285.3 Up 11:13:57 - 11:17:38 992
Patrick 11:15:45 -41.5 Dark Down 55.9 286.5 Up 11:13:54 - 11:17:35 959
Kingman/Dolan Springs 11:15:45 -41.7 Dark Down 56.0 286.7 Up 11:13:54 - 11:17:35 930
Laughlin/Bullhead City 11:15:46 -42.1 Dark Down 56.4 286.7 Up 11:13:55 - 11:17:36 912
Mohave Valley 11:15:46 -42.1 Dark Down 56.3 287.1 Up 11:13:55 - 11:17:36 884
Lake Havasu City 11:15:45 -41.9 Dark Down 56.0 287.7 Up 11:13:54 - 11:17:35 849
George/Scottsdale 11:15:40 -39.8 Dark Down 53.9 289.2 Up 11:13:49 - 11:17:30 844
Parker 11:15:45 -41.8 Dark Down 55.9 288.2 Up 11:13:54 - 11:17:35 813
Idyllwild 11:15:49 -43.8 Dark Down 57.7 288.4 Up 11:13:58 - 11:17:39 700
Wildwood 11:15:53 -45.4 Dark Down 59.3 287.6 Up 11:14:02 - 11:17:43 687
Calipatria 11:15:46 -42.8 Dark Down 56.5 289.4 Up 11:13:56 - 11:17:37 669
Yuma 11:15:44 -42.1 Dark Down 55.7 290.1 Up 11:13:54 - 11:17:35 650

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 468861, (2024/12/29 11:17UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 10.58 148
65 Aur         07:22:02.4 +36:45:38  5.1  0.84 153
PPM 072702     07:21:30.9 +37:39:44  7.7  0.39 152
PPM 072749     07:23:46.3 +37:24:39 11.9  0.16 152
468861         07:23:22.9 +37:33:12 12.5       152
Positions are for J2000

Event circumstances last updated at 2022/06/07 22:25:05 UT

Marc W. Buie, Southwest Research Institute

RECON