RECON: TNO occultation with 11UD63

Event between 11UD63 and star GA1180:01661697 with event index number of 1654337

Geocentric closest approach at 2027/01/13 05:52:48 UTC

J2000 position of star is 05:39:31.1 +29:24:47
Equinox of date position of star is 05:40:46.6 +29:25:22
Stellar brightness G=14.0, use SENSEUP=64
Star is 93 degrees from the moon. Moon is 25% illuminated.
TNO apparent brightness V=20.4

[RECON map]
TNO is 14.1 AU from the Sun and 13.3 AU from the Earth.
The TNO is moving 19.3 km/sec on the sky relative to the star, or, 7.2 arcsec/hr.
The 1-sigma error in the time of the event is 842 seconds.
The 1-sigma cross-track error in the shadow position is 3917 km.
The sky-plane scale is 9619.3 km/arcsec.

The TNO has an absolute magnitude Hv=8.8
Diameter=105.2 km assuming a 5% albedo -- 5.4 sec chord
Diameter=42.9 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 11UD63, (2027/01/13 05:53UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:28.5 +16:33:42  0.8 19.47  78
Alnath         05:28:00.2 +28:37:41  1.6  3.00  90
PPM 094619     05:41:01.5 +29:13:41  5.9  0.20  93
PPM 094672     05:43:05.0 +29:30:21  7.8  0.41  94
PPM 094619     05:41:01.5 +29:13:41  5.9  0.20  93
PPM 094620     05:41:05.1 +29:32:47 11.2  0.13  93
11UD63         05:41:14.5 +29:25:34 14.0        94
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 1.1 sigma about the mid-time.
The median site spacing is 25.1 km RECON observability=1.0 and success probability=12.6%
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 05:52:43 -51.2 Dark Down 69.0 171.4 Up 05:37:43 - 06:07:43 3424
Kelowna 05:52:44 -51.3 Dark Down 69.4 170.9 Up 05:37:44 - 06:07:44 3388
Summerland 05:52:46 -51.4 Dark Down 69.6 170.3 Up 05:37:46 - 06:07:46 3364
Penticton 05:52:45 -51.5 Dark Down 69.7 170.5 Up 05:37:45 - 06:07:45 3355
Oliver 05:52:45 -51.7 Dark Down 70.0 170.4 Up 05:37:45 - 06:07:45 3319
Victoria 05:53:00 -49.9 Dark Up 70.0 160.4 Up 05:38:00 - 06:08:00 3314
Anarchist Mountain Observatory 05:52:45 -51.9 Dark Down 70.2 170.8 Up 05:37:45 - 06:07:45 3299
Tonasket 05:52:46 -52.0 Dark Down 70.5 170.5 Up 05:37:46 - 06:07:46 3268
Okanogan 05:52:46 -52.1 Dark Down 70.8 169.9 Up 05:37:46 - 06:07:46 3236
Brewster 05:52:48 -52.2 Dark Down 71.1 169.3 Up 05:37:48 - 06:07:48 3211
Manson/Chelan 05:52:49 -52.1 Dark Up 71.2 168.2 Up 05:37:49 - 06:07:49 3196
Entiat 05:52:50 -52.1 Dark Up 71.4 167.9 Up 05:37:50 - 06:07:50 3174
Wenatchee 05:52:51 -52.2 Dark Up 71.7 167.4 Up 05:37:51 - 06:07:51 3149
Ellensburg 05:52:52 -52.3 Dark Up 72.0 166.6 Up 05:37:52 - 06:07:52 3110
Yakima 05:52:53 -52.5 Dark Up 72.4 166.2 Up 05:37:53 - 06:07:53 3069
Toppenish/White Swan 05:52:52 -52.7 Dark Up 72.7 166.5 Up 05:37:52 - 06:07:52 3043
Pasco 05:52:47 -53.5 Dark Down 73.0 170.1 Up 05:37:47 - 06:07:47 3011
Goldendale 05:52:54 -52.7 Dark Up 73.1 164.9 Up 05:37:54 - 06:07:54 2993
PNWRO 05:52:47 -53.8 Dark Down 73.2 170.6 Up 05:37:47 - 06:07:47 2982
The Dalles 05:52:56 -52.6 Dark Up 73.3 163.6 Up 05:37:56 - 06:07:56 2976
Maupin 05:52:56 -52.9 Dark Up 73.7 163.5 Up 05:37:56 - 06:07:56 2931
Sisters 05:52:59 -53.0 Dark Up 74.4 161.1 Up 05:37:59 - 06:07:59 2848
Redmond 05:52:58 -53.2 Dark Up 74.6 162.3 Up 05:37:58 - 06:07:58 2838
Bend 05:52:59 -53.3 Dark Up 74.7 161.7 Up 05:37:59 - 06:07:59 2818
Oregon Observatory 05:53:00 -53.3 Dark Up 74.9 161.1 Up 05:38:00 - 06:08:00 2802
La Pine/Gilchrist 05:53:00 -53.3 Dark Up 75.0 160.6 Up 05:38:00 - 06:08:00 2782
North Lake 05:52:58 -53.9 Dark Up 75.6 162.1 Up 05:37:58 - 06:07:58 2726
Paisley 05:52:58 -54.4 Dark Up 76.2 162.6 Up 05:37:58 - 06:07:58 2662
Klamath Falls 05:53:03 -53.7 Dark Up 76.3 157.7 Up 05:38:03 - 06:08:03 2634
Lakeview 05:52:57 -54.7 Dark Up 76.7 162.7 Up 05:37:57 - 06:07:57 2605
Cedarville 05:52:57 -55.1 Dark Up 77.4 162.5 Up 05:37:57 - 06:07:57 2532
Fall River/Burney 05:53:03 -54.5 Dark Up 77.5 157.2 Up 05:38:03 - 06:08:03 2503
Susanville 05:53:01 -55.2 Dark Up 78.3 158.9 Up 05:38:01 - 06:08:01 2423
Greenville 05:53:02 -55.1 Dark Up 78.5 157.3 Up 05:38:02 - 06:08:02 2399
Gimple 05:53:02 -55.2 Dark Up 78.5 157.6 Up 05:38:02 - 06:08:02 2397
Quincy 05:53:03 -55.2 Dark Up 78.7 156.9 Up 05:38:03 - 06:08:03 2377
Portola 05:53:01 -55.6 Dark Up 78.9 158.6 Up 05:38:01 - 06:08:01 2355
Reno 05:52:58 -56.1 Dark Up 79.4 161.0 Up 05:37:58 - 06:07:58 2315
Carson City 05:52:59 -56.3 Dark Up 79.7 160.4 Up 05:37:59 - 06:07:59 2276
Gardnerville 05:52:59 -56.4 Dark Up 79.9 160.2 Up 05:37:59 - 06:07:59 2249
Yerington 05:52:56 -56.8 Dark Down 80.0 163.1 Up 05:37:56 - 06:07:56 2244
Niwot 05:51:55 -65.2 Dark Down 76.3 221.8 Up 05:36:55 - 06:06:55 2196
Hawthorne 05:52:54 -57.4 Dark Down 80.6 164.9 Up 05:37:54 - 06:07:54 2186
SwRI 05:51:55 -65.2 Dark Down 76.4 221.8 Up 05:36:55 - 06:06:55 2185
Lee Vining 05:52:57 -57.2 Dark Down 81.0 161.4 Up 05:37:57 - 06:07:57 2133
Tonopah 05:52:49 -58.5 Dark Down 81.3 171.9 Up 05:37:49 - 06:07:49 2112
Bishop 05:52:54 -57.9 Dark Down 81.8 164.3 Up 05:37:54 - 06:07:54 2056
Beatty 05:52:48 -59.3 Dark Down 82.5 173.7 Up 05:37:48 - 06:07:48 1980
Indian Springs 05:52:43 -60.2 Dark Down 82.8 180.8 Up 05:37:43 - 06:07:43 1927
CPSLO 05:53:07 -56.9 Dark Up 82.9 144.3 Up 05:38:07 - 06:08:07 1875
Henderson 05:52:41 -60.9 Dark Down 83.3 186.0 Up 05:37:41 - 06:07:41 1859
Searchlight/Boulder City 05:52:41 -61.2 Dark Down 83.9 187.1 Up 05:37:41 - 06:07:41 1795
Patrick 05:52:36 -62.0 Dark Down 83.8 195.5 Up 05:37:36 - 06:07:36 1774
Laughlin/Bullhead City 05:52:40 -61.6 Dark Down 84.2 190.4 Up 05:37:40 - 06:07:40 1758
Kingman/Dolan Springs 05:52:37 -61.9 Dark Down 84.0 194.5 Up 05:37:37 - 06:07:37 1753
DCO 05:52:33 -62.6 Dark Down 83.9 201.8 Up 05:37:33 - 06:07:33 1731
Mohave Valley 05:52:40 -61.7 Dark Down 84.4 190.9 Up 05:37:40 - 06:07:40 1728
Wildwood 05:52:59 -58.8 Dark Down 84.8 152.8 Up 05:37:59 - 06:07:59 1706
Lake Havasu City 05:52:39 -62.0 Dark Down 84.8 194.1 Up 05:37:39 - 06:07:39 1681
Parker 05:52:39 -62.1 Dark Down 85.1 195.4 Up 05:37:39 - 06:07:39 1642
Idyllwild 05:52:51 -60.4 Dark Down 85.6 169.8 Up 05:37:51 - 06:07:51 1635
Blythe 05:52:41 -62.1 Dark Down 85.7 193.9 Up 05:37:41 - 06:07:41 1589
George/Scottsdale 05:52:28 -64.1 Dark Down 84.6 218.6 Up 05:37:28 - 06:07:28 1562
Calipatria 05:52:46 -61.5 Dark Down 86.3 183.7 Up 05:37:46 - 06:07:46 1549
Yuma 05:52:42 -62.3 Dark Down 86.6 197.2 Up 05:37:42 - 06:07:42 1488

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, (2027/01/13 05:53UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 19.47  78
Alnath         05:26:17.5 +28:36:23  1.6  3.00  90
PPM 094619     05:39:18.3 +29:12:54  5.9  0.20  93
PPM 094672     05:41:21.5 +29:29:39  7.8  0.41  94
PPM 094619     05:39:18.3 +29:12:54  5.9  0.20  93
PPM 094620     05:39:21.6 +29:32:00 11.2  0.13  93
11UD63         05:39:31.1 +29:24:47 14.0        93
Positions are for J2000

Event circumstances last updated at 2019/10/04 23:04:32 UT

Marc W. Buie, Southwest Research Institute

RECON