RECON: TNO occultation with 612048

Event between (612048) 96TS66 and star GA1160:01237813 with event index number of 2803900

Geocentric closest approach at 2024/12/11 12:19:08 UTC

J2000 position of star is 05:18:57.0 +26:19:37
Equinox of date position of star is 05:20:22.6 +26:20:57
Stellar brightness G=12.9, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 53 degrees from the moon. Moon is 81% illuminated.
Apparent brightness V=22.0

[RECON map]
Object is 38.5 AU from the Sun and 37.5 AU from the Earth.
Apparent velocity is 25.2 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 174 seconds.
The 1-sigma cross-track error in the shadow position is 1381 km.
The sky-plane scale is 27182.7 km/arcsec.

The object has an absolute magnitude Hv=6.2
Diameter=350.0 km assuming a 5% albedo -- 13.9 sec chord
Diameter=142.9 km assuming a 30% albedo -- 5.7 sec chord
Dynamical classification is 5:3EE
 
 
 
 
 
 

Star training set for 612048, (2024/12/11 12:17UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:21.3 +16:33:27  0.8 14.01  43
Alnath         05:27:52.3 +28:37:34  1.6  2.80  55
PPM 094294     05:22:33.5 +27:58:48  6.3  1.69  54
PPM 094169     05:13:54.4 +26:28:55  8.1  1.48  51
PPM 094272     05:21:19.5 +26:16:57  9.9  0.20  53
612048         05:20:29.9 +26:21:04 12.9        53
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 22.0 km RECON observability=1.0 and success probability=9.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 12:16:22 -24.1 Dark Down 27.0 279.0 Low 12:01:24 - 12:31:19 -2441
Kamloops 12:16:32 -33.1 Dark Down 35.8 269.0 Up 12:01:34 - 12:31:29 -2947
Kelowna 12:16:28 -32.5 Dark Down 35.3 270.2 Up 12:01:31 - 12:31:26 -2995
Peachland 12:16:29 -32.7 Dark Down 35.5 270.1 Up 12:01:31 - 12:31:26 -3012
Summerland 12:16:28 -32.7 Dark Down 35.4 270.2 Up 12:01:30 - 12:31:25 -3023
Penticton 12:16:28 -32.6 Dark Down 35.3 270.4 Up 12:01:30 - 12:31:25 -3026
Oliver 12:16:26 -32.6 Dark Down 35.3 270.6 Up 12:01:29 - 12:31:24 -3057
Anarchist Mountain Observatory 12:16:26 -32.5 Dark Down 35.2 270.9 Up 12:01:29 - 12:31:24 -3066
Okanogan 12:16:25 -32.7 Dark Down 35.3 271.2 Up 12:01:27 - 12:31:22 -3129
Brewster 12:16:24 -32.8 Dark Down 35.5 271.2 Up 12:01:27 - 12:31:22 -3159
Manson/Chelan 12:16:24 -33.1 Dark Down 35.7 271.1 Up 12:01:27 - 12:31:22 -3187
Victoria 12:16:30 -35.2 Dark Down 37.9 268.2 Up 12:01:33 - 12:31:28 -3215
Wenatchee 12:16:23 -33.2 Dark Down 35.8 271.3 Up 12:01:26 - 12:31:21 -3234
Ellensburg 12:16:22 -33.4 Dark Down 36.0 271.4 Up 12:01:24 - 12:31:19 -3277
Yakima 12:16:21 -33.4 Dark Down 36.0 271.7 Up 12:01:24 - 12:31:19 -3315
PNWRO 12:16:17 -32.2 Dark Down 34.8 273.3 Up 12:01:20 - 12:31:15 -3321
Toppenish/White Swan 12:16:21 -33.3 Dark Down 35.9 272.0 Up 12:01:23 - 12:31:18 -3330
Dunrhomin 12:15:48 -21.7 Dark Down 24.1 284.9 Low 12:00:51 - 12:30:46 -3396
Nikitin 12:15:48 -21.7 Dark Down 24.1 285.0 Low 12:00:50 - 12:30:45 -3413
CU-SBO 12:15:48 -21.7 Dark Down 24.1 285.0 Low 12:00:50 - 12:30:45 -3422
The Dalles 12:16:20 -33.8 Dark Down 36.4 272.0 Up 12:01:22 - 12:31:17 -3423
Maupin 12:16:19 -33.8 Dark Down 36.3 272.4 Up 12:01:21 - 12:31:16 -3458
Sisters 12:16:17 -34.1 Dark Down 36.6 272.7 Up 12:01:20 - 12:31:15 -3553
Bend 12:16:16 -33.9 Dark Down 36.4 273.0 Up 12:01:19 - 12:31:14 -3568
Oregon Observatory 12:16:16 -34.0 Dark Down 36.5 273.1 Up 12:01:18 - 12:31:13 -3588
Chiloquin 12:16:13 -34.3 Dark Down 36.7 273.8 Up 12:01:16 - 12:31:11 -3723
Klamath Falls 12:16:13 -34.3 Dark Down 36.6 274.1 Up 12:01:15 - 12:31:10 -3753
Cedarville 12:16:09 -33.0 Dark Down 35.4 275.6 Up 12:01:11 - 12:31:06 -3772
Fall River/Burney 12:16:09 -33.9 Dark Down 36.3 275.2 Up 12:01:12 - 12:31:07 -3855
Gimple 12:16:06 -33.5 Dark Down 35.8 276.2 Up 12:01:09 - 12:31:04 -3926
Greenville 12:16:07 -33.6 Dark Down 35.9 276.1 Up 12:01:09 - 12:31:04 -3928
Portola 12:16:05 -33.2 Dark Down 35.5 276.6 Up 12:01:08 - 12:31:03 -3945
Quincy 12:16:06 -33.6 Dark Down 35.8 276.2 Up 12:01:09 - 12:31:04 -3947
Reno 12:16:04 -32.7 Dark Down 34.9 277.2 Up 12:01:07 - 12:31:02 -3950
Yerington 12:16:01 -32.1 Dark Down 34.4 277.9 Up 12:01:04 - 12:30:59 -3983
Carson City 12:16:03 -32.6 Dark Down 34.9 277.4 Up 12:01:06 - 12:31:01 -3984
Gardnerville 12:16:03 -32.6 Dark Down 34.8 277.6 Up 12:01:05 - 12:31:00 -4006
Hawthorne 12:15:59 -31.7 Dark Down 33.9 278.5 Up 12:01:02 - 12:30:57 -4011
Lee Vining 12:16:00 -32.0 Dark Down 34.2 278.6 Up 12:01:02 - 12:30:57 -4081
Beatty 12:15:54 -30.0 Dark Down 32.2 280.5 Up 12:00:56 - 12:30:51 -4106
Bishop 12:15:57 -31.4 Dark Down 33.5 279.4 Up 12:00:59 - 12:30:54 -4115
Patrick 12:15:46 -27.5 Dark Down 29.6 282.8 Low 12:00:49 - 12:30:44 -4151
Laughlin/Bullhead City 12:15:47 -28.1 Dark Down 30.1 282.6 Up 12:00:49 - 12:30:44 -4199
George/Scottsdale 12:15:41 -25.6 Dark Down 27.6 284.6 Low 12:00:43 - 12:30:38 -4242
Lake Havasu City 12:15:46 -27.7 Dark Down 29.8 283.1 Low 12:00:48 - 12:30:43 -4255
Idyllwild 12:15:47 -29.6 Dark Down 31.5 282.5 Up 12:00:50 - 12:30:45 -4412
Calipatria 12:15:44 -28.5 Dark Down 30.4 283.3 Up 12:00:47 - 12:30:42 -4431
Yuma 12:15:42 -27.7 Dark Down 29.6 284.0 Low 12:00:44 - 12:30:39 -4441
Wildwood 12:15:51 -31.2 Dark Down 33.1 281.4 Up 12:00:53 - 12:30:48 -4442

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 612048, (2024/12/11 12:17UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 14.01  43
Alnath         05:26:17.6 +28:36:23  1.6  2.80  55
PPM 094294     05:20:59.3 +27:57:25  6.3  1.69  54
PPM 094169     05:12:21.4 +26:27:14  8.1  1.48  51
PPM 094272     05:19:46.5 +26:15:31  9.9  0.20  53
612048         05:18:57.0 +26:19:37 12.9        53
Positions are for J2000

Event circumstances last updated at 2022/12/24 04:09:45 UT

Marc W. Buie, Southwest Research Institute

RECON