RECON: TNO occultation with 612048

Event between (612048) 96TS66 and star GA1140:01489331 with event index number of 2804145

Geocentric closest approach at 2029/02/13 03:31:15 UTC

J2000 position of star is 05:42:54.0 +25:45:30
Equinox of date position of star is 05:44:19.5 +25:46:03
Stellar brightness G=14.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 125 degrees from the moon. Moon is 0% illuminated.
Apparent brightness V=22.2

[RECON map]
Object is 38.6 AU from the Sun and 38.1 AU from the Earth.
Apparent velocity is 11.3 km/sec on the sky relative to the star, or, 1.5 arcsec/hr.
The 1-sigma error in the time of the event is 583 seconds.
The 1-sigma cross-track error in the shadow position is 1494 km.
The sky-plane scale is 27618.9 km/arcsec.

The object has an absolute magnitude Hv=6.2
Diameter=350.0 km assuming a 5% albedo -- 31.0 sec chord
Diameter=142.9 km assuming a 30% albedo -- 12.7 sec chord
Dynamical classification is 5:3EE
 
 
 
 
 
 

Star training set for 612048, (2029/02/13 03:25UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:35.7 +16:33:56  0.8 18.12 109
Alnath         05:28:08.1 +28:37:46  1.6  4.66 121
125 Tau        05:41:32.6 +25:54:38  5.2  0.73 124
PPM 094753     05:45:27.1 +25:27:02  6.7  0.36 125
PPM 094725     05:44:38.8 +25:44:19  9.4  0.03 125
612048         05:44:42.3 +25:46:11 14.7       125
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 1.5 sigma about the mid-time.
The median site spacing is 35.7 km RECON observability=1.0 and success probability=29.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 03:31:35 -22.2 Dark Down 64.0 159.7 Up 03:16:35 - 03:46:35 -383
Sleaford 03:30:08 -30.5 Dark Down 63.5 188.8 Up 03:15:08 - 03:45:08 -437
Kelowna 03:31:32 -22.9 Dark Down 64.9 160.9 Up 03:16:32 - 03:46:32 -477
Peachland 03:31:34 -22.7 Dark Down 65.0 160.2 Up 03:16:34 - 03:46:34 -482
Summerland 03:31:34 -22.8 Dark Down 65.1 160.3 Up 03:16:34 - 03:46:34 -498
Penticton 03:31:34 -22.9 Dark Down 65.2 160.5 Up 03:16:34 - 03:46:34 -507
Victoria 03:32:00 -20.5 Dark Down 65.2 151.9 Up 03:17:00 - 03:47:00 -536
Oliver 03:31:35 -22.9 Dark Down 65.6 160.2 Up 03:16:35 - 03:46:35 -541
Anarchist Mountain Observatory 03:31:34 -23.1 Dark Down 65.8 160.5 Up 03:16:34 - 03:46:34 -561
Okanogan 03:31:37 -23.0 Dark Down 66.3 159.6 Up 03:16:37 - 03:46:37 -621
Brewster 03:31:39 -22.9 Dark Down 66.5 158.9 Up 03:16:39 - 03:46:39 -644
Manson/Chelan 03:31:42 -22.7 Dark Down 66.6 158.0 Up 03:16:42 - 03:46:42 -658
Wenatchee 03:31:44 -22.6 Dark Down 67.0 157.2 Up 03:16:44 - 03:46:44 -702
Ellensburg 03:31:47 -22.5 Dark Down 67.4 156.3 Up 03:16:47 - 03:46:47 -739
Yakima 03:31:48 -22.5 Dark Down 67.7 155.9 Up 03:16:48 - 03:46:48 -779
Toppenish/White Swan 03:31:47 -22.6 Dark Down 68.0 156.1 Up 03:16:47 - 03:46:47 -804
The Dalles 03:31:54 -22.2 Dark Down 68.5 153.5 Up 03:16:54 - 03:46:54 -867
PNWRO 03:31:38 -23.7 Dark Down 68.7 159.2 Up 03:16:38 - 03:46:38 -868
Maupin 03:31:55 -22.3 Dark Down 68.9 153.3 Up 03:16:55 - 03:46:55 -910
Sisters 03:32:01 -22.0 Dark Down 69.5 151.1 Up 03:17:01 - 03:47:01 -989
Bend 03:32:00 -22.2 Dark Down 69.8 151.4 Up 03:17:00 - 03:47:00 -1018
Oregon Observatory 03:32:01 -22.1 Dark Down 69.9 150.9 Up 03:17:01 - 03:47:01 -1033
Chiloquin 03:32:08 -21.9 Dark Down 70.9 148.0 Up 03:17:08 - 03:47:08 -1158
Klamath Falls 03:32:08 -21.9 Dark Down 71.2 147.7 Up 03:17:08 - 03:47:08 -1195
Cedarville 03:31:58 -23.1 Dark Down 72.4 150.7 Up 03:16:58 - 03:46:58 -1299
Fall River/Burney 03:32:08 -22.3 Dark Down 72.4 146.8 Up 03:17:08 - 03:47:08 -1323
Greenville 03:32:08 -22.6 Dark Down 73.3 146.3 Up 03:17:08 - 03:47:08 -1426
Gimple 03:32:07 -22.7 Dark Down 73.3 146.6 Up 03:17:07 - 03:47:07 -1428
Quincy 03:32:08 -22.6 Dark Down 73.5 146.0 Up 03:17:08 - 03:47:08 -1447
Portola 03:32:05 -23.0 Dark Down 73.8 147.1 Up 03:17:05 - 03:47:05 -1470
Reno 03:32:02 -23.5 Dark Down 74.3 148.4 Up 03:17:02 - 03:47:02 -1511
Carson City 03:32:02 -23.5 Dark Down 74.6 147.8 Up 03:17:02 - 03:47:02 -1549
Gardnerville 03:32:02 -23.6 Dark Down 74.8 147.5 Up 03:17:02 - 03:47:02 -1575
Yerington 03:31:59 -24.0 Dark Down 75.0 149.3 Up 03:16:59 - 03:46:59 -1582
Hawthorne 03:31:55 -24.4 Dark Down 75.6 150.1 Up 03:16:55 - 03:46:55 -1641
Dunrhomin 03:30:15 -34.2 Dark Down 74.9 198.0 Up 03:15:15 - 03:45:15 -1669
Nikitin 03:30:15 -34.2 Dark Down 75.1 198.1 Up 03:15:15 - 03:45:15 -1688
Lee Vining 03:32:01 -24.1 Dark Down 75.9 147.4 Up 03:17:01 - 03:47:01 -1690
CU-SBO 03:30:16 -34.2 Dark Down 75.1 198.0 Up 03:15:16 - 03:45:16 -1694
Bishop 03:31:57 -24.7 Dark Down 76.7 148.5 Up 03:16:57 - 03:46:57 -1768
Beatty 03:31:46 -25.9 Dark Down 77.7 153.3 Up 03:16:46 - 03:46:46 -1849
Patrick 03:31:27 -28.3 Dark Down 79.9 162.9 Up 03:16:27 - 03:46:27 -2061
Laughlin/Bullhead City 03:31:33 -27.8 Dark Down 80.0 159.1 Up 03:16:33 - 03:46:33 -2074
Wildwood 03:32:06 -24.6 Dark Down 79.3 138.8 Up 03:17:06 - 03:47:06 -2110
Lake Havasu City 03:31:31 -28.0 Dark Down 80.7 158.9 Up 03:16:31 - 03:46:31 -2151
Idyllwild 03:31:51 -26.1 Dark Down 80.5 145.2 Up 03:16:51 - 03:46:51 -2187
Calipatria 03:31:44 -27.1 Dark Down 81.5 148.9 Up 03:16:44 - 03:46:44 -2276
George/Scottsdale 03:31:14 -30.0 Dark Down 82.0 171.5 Up 03:16:14 - 03:46:14 -2278
Yuma 03:31:38 -27.8 Dark Down 82.2 152.4 Up 03:16:38 - 03:46:38 -2339

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, (2029/02/13 03:25UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 18.12 109
Alnath         05:26:17.6 +28:36:23  1.6  4.66 121
125 Tau        05:39:44.2 +25:53:49  5.2  0.73 124
PPM 094753     05:43:39.0 +25:26:23  6.7  0.36 125
PPM 094725     05:42:50.5 +25:43:37  9.4  0.03 125
612048         05:42:54.0 +25:45:30 14.7       125
Positions are for J2000

Event circumstances last updated at 2022/12/26 05:14:28 UT

Marc W. Buie, Southwest Research Institute

RECON