RECON: TNO occultation with 11UD63

Event between 11UD63 and star GA1180:01616090 with event index number of 1785312

Geocentric closest approach at 2027/02/01 07:43:58 UTC

J2000 position of star is 05:36:01.0 +29:14:11
Equinox of date position of star is 05:37:20.5 +29:14:54
Stellar brightness G=15.7, use SENSEUP=128
Star is 170 degrees from the moon. Moon is 24% illuminated.
TNO apparent brightness V=21.7

[RECON map]
TNO is 14.1 AU from the Sun and 13.4 AU from the Earth.
The TNO is moving 13.4 km/sec on the sky relative to the star, or, 4.9 arcsec/hr.
The 1-sigma error in the time of the event is 393 seconds.
The 1-sigma cross-track error in the shadow position is 1649 km.
The sky-plane scale is 9740.0 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=106.2 km assuming a 5% albedo -- 4.5 sec chord
Diameter=43.3 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 11UD63, (2027/02/01 07:44UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:28.7 +16:33:42  0.8 18.77 169
Alnath         05:28:00.4 +28:37:41  1.6  2.22 172
PPM 094619     05:41:01.7 +29:13:41  5.9  0.72 169
PPM 094457     05:33:57.5 +29:12:46  8.4  0.83 170
PPM 094565     05:38:41.7 +29:19:41  9.6  0.22 169
PPM 094521     05:37:01.1 +29:17:12 11.0  0.16 170
11UD63         05:37:44.4 +29:15:06 15.7       169
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 2.3 sigma about the mid-time.
The median site spacing is 26.4 km RECON observability=1.0 and success probability=31.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 07:39:38 -56.3 Dark Down 51.7 253.2 Up 07:24:38 - 07:54:38 1078
Kelowna 07:39:38 -56.7 Dark Down 51.9 253.5 Up 07:24:38 - 07:54:38 1035
Peachland 07:39:39 -56.7 Dark Down 52.1 253.4 Up 07:24:39 - 07:54:39 1022
Summerland 07:39:39 -56.9 Dark Down 52.1 253.6 Up 07:24:39 - 07:54:39 1006
Penticton 07:39:38 -57.0 Dark Down 52.0 253.8 Up 07:24:38 - 07:54:38 1000
Oliver 07:39:38 -57.3 Dark Down 52.1 254.3 Up 07:24:38 - 07:54:38 962
Anarchist Mountain Observatory 07:39:36 -57.5 Dark Down 52.0 254.7 Up 07:24:36 - 07:54:36 946
Tonasket 07:39:36 -57.8 Dark Down 52.2 255.0 Up 07:24:36 - 07:54:36 912
Okanogan 07:39:36 -58.1 Dark Down 52.4 255.2 Up 07:24:36 - 07:54:36 875
Victoria 07:39:54 -57.2 Dark Down 54.7 251.3 Up 07:24:54 - 07:54:54 871
Brewster 07:39:36 -58.3 Dark Down 52.5 255.4 Up 07:24:36 - 07:54:36 845
Manson/Chelan 07:39:38 -58.4 Dark Down 52.8 255.3 Up 07:24:38 - 07:54:38 820
Entiat 07:39:38 -58.6 Dark Down 52.9 255.5 Up 07:24:38 - 07:54:38 796
Wenatchee 07:39:37 -58.9 Dark Down 53.1 255.8 Up 07:24:37 - 07:54:37 768
Ellensburg 07:39:38 -59.2 Dark Down 53.3 256.1 Up 07:24:38 - 07:54:38 722
Yakima 07:39:37 -59.6 Dark Down 53.4 256.6 Up 07:24:37 - 07:54:37 678
Toppenish/White Swan 07:39:36 -59.9 Dark Down 53.4 257.0 Up 07:24:36 - 07:54:36 656
Pasco 07:39:30 -60.2 Dark Down 52.5 258.3 Up 07:24:30 - 07:54:30 651
PNWRO 07:39:29 -60.5 Dark Down 52.4 258.9 Up 07:24:29 - 07:54:29 626
Goldendale 07:39:37 -60.3 Dark Down 53.8 257.4 Up 07:24:37 - 07:54:37 593
The Dalles 07:39:39 -60.4 Dark Down 54.1 257.3 Up 07:24:39 - 07:54:39 567
Maupin 07:39:37 -60.8 Dark Down 54.1 258.0 Up 07:24:37 - 07:54:37 522
Sisters 07:39:39 -61.6 Dark Down 54.6 258.8 Up 07:24:39 - 07:54:39 424
Redmond 07:39:37 -61.7 Dark Down 54.3 259.1 Up 07:24:37 - 07:54:37 423
Bend 07:39:37 -61.8 Dark Down 54.5 259.3 Up 07:24:37 - 07:54:37 399
Oregon Observatory 07:39:37 -62.0 Dark Down 54.6 259.4 Up 07:24:37 - 07:54:37 380
La Pine/Gilchrist 07:39:38 -62.1 Dark Down 54.7 259.7 Up 07:24:38 - 07:54:38 357
North Lake 07:39:34 -62.7 Dark Down 54.3 260.8 Up 07:24:34 - 07:54:34 313
Paisley 07:39:32 -63.3 Dark Down 54.2 261.8 Up 07:24:32 - 07:54:32 255
Lakeview 07:39:30 -63.8 Dark Down 54.1 262.7 Up 07:24:30 - 07:54:30 201
Klamath Falls 07:39:37 -63.4 Dark Down 55.1 261.5 Up 07:24:37 - 07:54:37 196
Niwot 07:38:18 -66.4 Dark Down 42.9 275.1 Up 07:23:18 - 07:53:18 169
SwRI 07:38:18 -66.6 Dark Down 43.0 275.1 Up 07:23:18 - 07:53:18 156
Cedarville 07:39:28 -64.5 Dark Down 54.0 263.7 Up 07:24:28 - 07:54:28 130
Fall River/Burney 07:39:34 -64.6 Dark Down 55.0 263.4 Up 07:24:34 - 07:54:34 69
Susanville 07:39:29 -65.4 Dark Down 54.5 264.9 Up 07:24:29 - 07:54:29 5
Gimple 07:39:30 -65.6 Dark Down 54.7 265.1 Up 07:24:30 - 07:54:30 -27
Greenville 07:39:31 -65.6 Dark Down 54.8 265.1 Up 07:24:31 - 07:54:31 -28
Quincy 07:39:30 -65.8 Dark Down 54.8 265.3 Up 07:24:30 - 07:54:30 -50
Portola 07:39:28 -66.0 Dark Down 54.4 265.9 Up 07:24:28 - 07:54:28 -60
Reno 07:39:24 -66.4 Dark Down 53.9 266.7 Up 07:24:24 - 07:54:24 -85
Carson City 07:39:24 -66.8 Dark Down 54.0 267.2 Up 07:24:24 - 07:54:24 -124
Yerington 07:39:20 -67.1 Dark Down 53.5 267.9 Up 07:24:20 - 07:54:20 -141
Gardnerville 07:39:23 -67.0 Dark Down 53.9 267.5 Up 07:24:23 - 07:54:23 -151
Hawthorne 07:39:17 -67.7 Dark Down 53.1 268.8 Up 07:24:17 - 07:54:17 -188
Tonopah 07:39:09 -68.5 Dark Down 52.0 270.3 Up 07:24:09 - 07:54:09 -226
Lee Vining 07:39:19 -68.1 Dark Down 53.5 269.3 Up 07:24:19 - 07:54:19 -254
Bishop 07:39:15 -68.9 Dark Down 52.9 270.5 Up 07:24:15 - 07:54:15 -313
Beatty 07:39:06 -69.7 Dark Down 51.6 272.0 Up 07:24:06 - 07:54:06 -349
Indian Springs 07:39:00 -70.2 Dark Down 50.8 273.0 Up 07:24:00 - 07:54:00 -373
Henderson 07:38:56 -70.8 Dark Down 50.2 274.0 Up 07:23:56 - 07:53:56 -424
Patrick 07:38:50 -71.6 Dark Down 49.3 275.3 Up 07:23:50 - 07:53:50 -479
Searchlight/Boulder City 07:38:55 -71.4 Dark Down 50.1 274.8 Up 07:23:55 - 07:53:55 -486
DCO 07:38:46 -72.0 Dark Down 48.7 276.0 Up 07:23:46 - 07:53:46 -503
Kingman/Dolan Springs 07:38:50 -71.8 Dark Down 49.4 275.5 Up 07:23:50 - 07:53:50 -506
Laughlin/Bullhead City 07:38:53 -71.7 Dark Down 49.8 275.3 Up 07:23:53 - 07:53:53 -515
Mohave Valley 07:38:53 -72.0 Dark Down 49.8 275.6 Up 07:23:53 - 07:53:53 -545
CPSLO 07:39:25 -70.1 Dark Down 54.7 272.1 Up 07:24:25 - 07:54:25 -559
Lake Havasu City 07:38:51 -72.4 Dark Down 49.5 276.2 Up 07:23:51 - 07:53:51 -586
Parker 07:38:51 -72.8 Dark Down 49.5 276.6 Up 07:23:51 - 07:53:51 -624
George/Scottsdale 07:38:38 -73.4 Dark Down 47.5 278.1 Up 07:23:38 - 07:53:38 -637
Wildwood 07:39:13 -71.9 Dark Down 52.9 274.7 Up 07:24:13 - 07:54:13 -676
Blythe 07:38:51 -73.3 Dark Down 49.7 277.1 Up 07:23:51 - 07:53:51 -685
Idyllwild 07:39:03 -72.7 Dark Down 51.4 276.0 Up 07:24:03 - 07:54:03 -697
Calipatria 07:38:56 -73.6 Dark Down 50.4 277.3 Up 07:23:56 - 07:53:56 -751
Yuma 07:38:51 -74.2 Dark Down 49.6 278.1 Up 07:23:51 - 07:53:51 -787

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 11UD63, (2027/02/01 07:44UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 18.77 169
Alnath         05:26:17.5 +28:36:23  1.6  2.22 172
PPM 094619     05:39:18.3 +29:12:54  5.9  0.72 169
PPM 094457     05:32:14.1 +29:11:43  8.4  0.83 170
PPM 094565     05:36:58.2 +29:18:49  9.6  0.22 169
PPM 094521     05:35:17.6 +29:16:16 11.0  0.16 170
11UD63         05:36:01.0 +29:14:11 15.7       170
Positions are for J2000

Event circumstances last updated at 2020/10/30 23:04:11 UT

Marc W. Buie, Southwest Research Institute

RECON