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 03:25:01 UTC

J2000 position of star is 05:42:54.0 +25:45:30
Equinox of date position of star is 05:44:17.4 +25:46:02
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.
TNO apparent brightness V=22.2

[RECON map]
TNO is 38.6 AU from the Sun and 38.1 AU from the Earth.
The TNO is moving 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 761 seconds.
The 1-sigma cross-track error in the shadow position is 1607 km.
The sky-plane scale is 27618.9 km/arcsec.

The TNO 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 CLASSICAL
 
 
 
 
 
 

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 1.2 sigma about the mid-time.
The median site spacing is 29.1 km RECON observability=1.0 and success probability=16.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 03:25:31 -21.3 Dark Down 63.6 156.7 Up 03:10:31 - 03:40:31 -1810
Sleaford 03:24:03 -29.6 Dark Down 63.6 185.7 Up 03:09:03 - 03:39:03 -1876
Kelowna 03:25:28 -21.9 Dark Down 64.6 157.8 Up 03:10:28 - 03:40:28 -1904
Peachland 03:25:30 -21.7 Dark Down 64.6 157.1 Up 03:10:30 - 03:40:30 -1909
Summerland 03:25:30 -21.8 Dark Down 64.8 157.2 Up 03:10:30 - 03:40:30 -1925
Penticton 03:25:29 -21.9 Dark Down 64.9 157.4 Up 03:10:29 - 03:40:29 -1934
Victoria 03:25:55 -19.5 Dark Down 64.7 148.9 Up 03:10:55 - 03:40:55 -1959
Oliver 03:25:30 -21.9 Dark Down 65.2 157.1 Up 03:10:30 - 03:40:30 -1968
Anarchist Mountain Observatory 03:25:29 -22.1 Dark Down 65.4 157.3 Up 03:10:29 - 03:40:29 -1988
Tonasket 03:25:31 -22.0 Dark Down 65.7 156.9 Up 03:10:31 - 03:40:31 -2017
Okanogan 03:25:33 -22.0 Dark Down 66.0 156.3 Up 03:10:33 - 03:40:33 -2047
Brewster 03:25:35 -21.9 Dark Down 66.1 155.7 Up 03:10:35 - 03:40:35 -2070
Manson/Chelan 03:25:38 -21.7 Dark Down 66.2 154.7 Up 03:10:38 - 03:40:38 -2084
Wenatchee 03:25:40 -21.6 Dark Down 66.6 153.9 Up 03:10:40 - 03:40:40 -2127
Ellensburg 03:25:43 -21.5 Dark Down 66.9 153.0 Up 03:10:43 - 03:40:43 -2164
Yakima 03:25:44 -21.5 Dark Down 67.3 152.5 Up 03:10:44 - 03:40:44 -2204
Toppenish/White Swan 03:25:43 -21.6 Dark Down 67.5 152.7 Up 03:10:43 - 03:40:43 -2229
Goldendale 03:25:48 -21.3 Dark Down 67.9 151.1 Up 03:10:48 - 03:40:48 -2275
The Dalles 03:25:50 -21.1 Dark Down 68.0 150.1 Up 03:10:50 - 03:40:50 -2290
PNWRO 03:25:35 -22.6 Dark Down 68.3 155.6 Up 03:10:35 - 03:40:35 -2294
Maupin 03:25:51 -21.2 Dark Down 68.4 149.8 Up 03:10:51 - 03:40:51 -2334
Sisters 03:25:57 -20.9 Dark Down 68.9 147.6 Up 03:10:57 - 03:40:57 -2412
Bend 03:25:57 -21.1 Dark Down 69.2 147.8 Up 03:10:57 - 03:40:57 -2441
Oregon Observatory 03:25:57 -21.0 Dark Down 69.3 147.3 Up 03:10:57 - 03:40:57 -2456
North Lake 03:25:55 -21.4 Dark Down 70.1 147.6 Up 03:10:55 - 03:40:55 -2531
Chiloquin 03:26:04 -20.8 Dark Down 70.3 144.4 Up 03:11:04 - 03:41:04 -2580
Klamath Falls 03:26:05 -20.8 Dark Down 70.6 144.0 Up 03:11:05 - 03:41:05 -2616
Lakeview 03:25:55 -21.9 Dark Down 71.2 147.3 Up 03:10:55 - 03:40:55 -2650
Cedarville 03:25:55 -22.0 Dark Down 71.8 146.7 Up 03:10:55 - 03:40:55 -2721
Fall River/Burney 03:26:05 -21.1 Dark Down 71.7 142.9 Up 03:11:05 - 03:41:05 -2745
Susanville 03:26:02 -21.7 Dark Down 72.5 143.6 Up 03:11:02 - 03:41:02 -2825
Greenville 03:26:04 -21.5 Dark Down 72.6 142.3 Up 03:11:04 - 03:41:04 -2847
Gimple 03:26:04 -21.5 Dark Down 72.7 142.5 Up 03:11:04 - 03:41:04 -2849
Quincy 03:26:04 -21.5 Dark Down 72.8 141.9 Up 03:11:04 - 03:41:04 -2868
Portola 03:26:02 -21.8 Dark Down 73.1 142.9 Up 03:11:02 - 03:41:02 -2891
Reno 03:25:58 -22.3 Dark Down 73.6 144.1 Up 03:10:58 - 03:40:58 -2933
Carson City 03:26:00 -22.4 Dark Down 73.9 143.4 Up 03:11:00 - 03:41:00 -2971
Gardnerville 03:26:00 -22.4 Dark Down 74.1 143.0 Up 03:11:00 - 03:41:00 -2997
Yerington 03:25:55 -22.8 Dark Down 74.3 144.8 Up 03:10:55 - 03:40:55 -3004
Hawthorne 03:25:52 -23.2 Dark Down 75.0 145.3 Up 03:10:52 - 03:40:52 -3064
Dunrhomin 03:24:12 -33.1 Dark Down 75.2 192.8 Up 03:09:12 - 03:39:12 -3104
Lee Vining 03:25:57 -22.9 Dark Down 75.2 142.7 Up 03:10:57 - 03:40:57 -3112
CU-SBO 03:24:13 -33.1 Dark Down 75.5 192.7 Up 03:09:13 - 03:39:13 -3130
Tonopah 03:25:43 -24.3 Dark Down 75.9 148.7 Up 03:10:43 - 03:40:43 -3141
Bishop 03:25:54 -23.5 Dark Down 76.0 143.5 Up 03:10:54 - 03:40:54 -3190
Beatty 03:25:43 -24.7 Dark Down 77.1 147.7 Up 03:10:43 - 03:40:43 -3272
Indian Springs 03:25:36 -25.6 Dark Down 77.8 150.8 Up 03:10:36 - 03:40:36 -3328
Henderson 03:25:31 -26.2 Dark Down 78.6 152.3 Up 03:10:31 - 03:40:31 -3399
Patrick 03:25:25 -27.1 Dark Down 79.5 155.6 Up 03:10:25 - 03:40:25 -3487
Laughlin/Bullhead City 03:25:30 -26.5 Dark Down 79.5 152.0 Up 03:10:30 - 03:40:30 -3499
Kingman/Dolan Springs 03:25:25 -26.9 Dark Down 79.6 154.3 Up 03:10:25 - 03:40:25 -3507
Mohave Valley 03:25:30 -26.5 Dark Down 79.7 151.3 Up 03:10:30 - 03:40:30 -3529
Wildwood 03:26:02 -23.3 Dark Down 78.4 133.3 Up 03:11:02 - 03:41:02 -3531
Lake Havasu City 03:25:29 -26.7 Dark Down 80.2 151.3 Up 03:10:29 - 03:40:29 -3576
Idyllwild 03:25:50 -24.9 Dark Down 79.7 138.7 Up 03:10:50 - 03:40:50 -3609
Parker 03:25:30 -26.8 Dark Down 80.5 150.5 Up 03:10:30 - 03:40:30 -3614
Calipatria 03:25:42 -25.8 Dark Down 80.8 141.4 Up 03:10:42 - 03:40:42 -3699
George/Scottsdale 03:25:12 -28.8 Dark Down 81.7 162.2 Up 03:10:12 - 03:40:12 -3705
Yuma 03:25:37 -26.6 Dark Down 81.6 143.9 Up 03:10:37 - 03:40:37 -3763

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 2022/06/04 23:12:16 UT

Marc W. Buie, Southwest Research Institute

RECON