RECON: TNO occultation with 12TF324

Event between 12TF324 and star GA1120:00284252 with event index number of 1771666

Geocentric closest approach at 2027/11/12 08:16:17 UTC

J2000 position of star is 02:29:12.9 +23:12:21
Equinox of date position of star is 02:30:23.9 +23:17:51
Stellar brightness G=13.3, use SENSEUP=32
Star is 15 degrees from the moon. Moon is 96% illuminated.
TNO apparent brightness V=25.9

[RECON map]
TNO is 38.6 AU from the Sun and 37.7 AU from the Earth.
The TNO is moving 24.8 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 218 seconds.
The 1-sigma cross-track error in the shadow position is 2814 km.
The sky-plane scale is 27312.7 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=283.1 km assuming a 5% albedo -- 2.4 sec chord
Diameter=115.6 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 12TF324, (2027/11/12 08:16UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:31.3 +16:33:48  0.8 30.47  44
Hamal          02:08:45.0 +23:35:35  2.0  5.06  11
32Nu Ari       02:40:24.3 +22:04:49  5.4  2.54  17
PPM 091714     02:30:23.8 +23:59:37  8.5  0.67  15
PPM 091733     02:31:57.1 +23:25:00  9.8  0.28  15
12TF324        02:30:48.3 +23:19:44 13.3        16
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 4.1 sigma about the mid-time.
The median site spacing is 24.6 km RECON observability=1.0 and success probability=19.0%
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 08:14:49 -56.7 Dark Up 59.4 214.6 Up 07:59:49 - 08:29:49 407
Kelowna 08:14:49 -57.1 Dark Up 59.8 214.7 Up 07:59:49 - 08:29:49 370
Peachland 08:14:50 -57.3 Dark Up 60.0 214.3 Up 07:59:50 - 08:29:50 363
Summerland 08:14:50 -57.4 Dark Up 60.1 214.6 Up 07:59:50 - 08:29:50 346
Penticton 08:14:50 -57.5 Dark Up 60.1 214.9 Up 07:59:50 - 08:29:50 338
Oliver 08:14:50 -57.8 Dark Up 60.4 215.3 Up 07:59:50 - 08:29:50 302
Victoria 08:15:01 -58.9 Dark Up 62.3 209.1 Up 08:00:01 - 08:30:01 298
Anarchist Mountain Observatory 08:14:49 -57.9 Dark Up 60.4 215.8 Up 07:59:49 - 08:29:49 282
Tonasket 08:14:50 -58.2 Dark Up 60.7 216.0 Up 07:59:50 - 08:29:50 252
Okanogan 08:14:50 -58.6 Dark Up 61.1 216.1 Up 07:59:50 - 08:29:50 220
Brewster 08:14:51 -58.9 Dark Up 61.3 216.0 Up 07:59:51 - 08:29:51 195
Manson/Chelan 08:14:52 -59.2 Dark Up 61.7 215.6 Up 07:59:52 - 08:29:52 179
Entiat 08:14:52 -59.4 Dark Up 61.9 215.7 Up 07:59:52 - 08:29:52 158
Wenatchee 08:14:53 -59.6 Dark Up 62.1 215.8 Up 07:59:53 - 08:29:53 134
Ellensburg 08:14:53 -60.1 Dark Up 62.5 215.9 Up 07:59:53 - 08:29:53 95
Yakima 08:14:54 -60.5 Dark Up 62.9 216.3 Up 07:59:54 - 08:29:54 53
Toppenish/White Swan 08:14:53 -60.7 Dark Up 63.0 216.9 Up 07:59:53 - 08:29:53 28
Pasco 08:14:50 -60.5 Dark Up 62.5 219.3 Up 07:59:50 - 08:29:50 -4
Goldendale 08:14:55 -61.3 Dark Up 63.6 216.8 Up 07:59:55 - 08:29:55 -21
PNWRO 08:14:49 -60.7 Dark Up 62.6 220.0 Up 07:59:49 - 08:29:49 -33
The Dalles 08:14:56 -61.5 Dark Up 63.9 216.4 Up 07:59:56 - 08:29:56 -39
Maupin 08:14:56 -61.9 Dark Up 64.2 217.1 Up 07:59:56 - 08:29:56 -84
Sisters 08:14:58 -62.9 Dark Up 65.1 217.3 Up 07:59:58 - 08:29:58 -166
Redmond 08:14:57 -62.8 Dark Up 65.0 218.1 Up 07:59:57 - 08:29:57 -176
Bend 08:14:57 -63.1 Dark Up 65.2 218.1 Up 07:59:57 - 08:29:57 -195
Oregon Observatory 08:14:58 -63.2 Dark Up 65.4 218.1 Up 07:59:58 - 08:29:58 -211
La Pine/Gilchrist 08:14:58 -63.5 Dark Up 65.6 218.3 Up 07:59:58 - 08:29:58 -231
North Lake 08:14:57 -63.8 Dark Up 65.6 220.0 Up 07:59:57 - 08:29:57 -287
Paisley 08:14:56 -64.2 Dark Up 65.9 221.5 Up 07:59:56 - 08:29:56 -351
Klamath Falls 08:15:00 -64.9 Dark Up 66.8 219.8 Up 08:00:00 - 08:30:00 -378
Lakeview 08:14:55 -64.7 Dark Up 66.2 222.6 Up 07:59:55 - 08:29:55 -408
Cedarville 08:14:55 -65.3 Dark Up 66.6 224.0 Up 07:59:55 - 08:29:55 -480
Fall River/Burney 08:14:59 -66.0 Dark Up 67.5 222.4 Up 07:59:59 - 08:29:59 -509
Susanville 08:14:57 -66.4 Dark Up 67.6 224.9 Up 07:59:57 - 08:29:57 -589
Greenville 08:14:59 -66.8 Dark Up 68.0 224.8 Up 07:59:59 - 08:29:59 -613
Gimple 08:14:58 -66.8 Dark Up 67.9 225.0 Up 07:59:58 - 08:29:58 -615
Quincy 08:14:59 -67.0 Dark Up 68.1 225.2 Up 07:59:59 - 08:29:59 -635
Portola 08:14:57 -67.0 Dark Up 67.9 226.3 Up 07:59:57 - 08:29:57 -657
Reno 08:14:55 -67.1 Dark Up 67.7 228.1 Up 07:59:55 - 08:29:55 -697
Carson City 08:14:55 -67.4 Dark Up 68.0 228.8 Up 07:59:55 - 08:29:55 -735
Gardnerville 08:14:55 -67.6 Dark Up 68.1 229.3 Up 07:59:55 - 08:29:55 -762
Yerington 08:14:53 -67.4 Dark Up 67.7 230.3 Up 07:59:53 - 08:29:53 -767
Niwot 08:14:10 -60.4 Dark Up 58.0 247.9 Up 07:59:10 - 08:29:10 -821
Hawthorne 08:14:52 -67.7 Dark Up 67.7 232.1 Up 07:59:52 - 08:29:52 -826
SwRI 08:14:10 -60.5 Dark Up 58.1 248.0 Up 07:59:10 - 08:29:10 -832
Lee Vining 08:14:54 -68.4 Dark Up 68.3 232.4 Up 07:59:54 - 08:29:54 -878
Tonopah 08:14:48 -67.6 Dark Up 67.1 235.5 Up 07:59:48 - 08:29:48 -900
Bishop 08:14:52 -68.7 Dark Up 68.2 234.9 Up 07:59:52 - 08:29:52 -955
Beatty 08:14:47 -68.5 Dark Up 67.4 238.5 Up 07:59:47 - 08:29:47 -1032
Indian Springs 08:14:43 -68.3 Dark Up 66.8 240.8 Up 07:59:43 - 08:29:43 -1085
CPSLO 08:15:01 -71.3 Dark Up 70.9 235.3 Up 08:00:01 - 08:30:01 -1135
Henderson 08:14:41 -68.5 Dark Up 66.6 243.0 Up 07:59:41 - 08:29:41 -1153
Searchlight/Boulder City 08:14:41 -68.9 Dark Up 66.8 244.2 Up 07:59:41 - 08:29:41 -1217
Patrick 08:14:38 -68.4 Dark Up 66.1 245.8 Up 07:59:38 - 08:29:38 -1238
Laughlin/Bullhead City 08:14:40 -69.0 Dark Up 66.7 245.3 Up 07:59:40 - 08:29:40 -1254
Kingman/Dolan Springs 08:14:39 -68.7 Dark Up 66.3 246.0 Up 07:59:39 - 08:29:39 -1259
DCO 08:14:36 -68.3 Dark Up 65.7 247.3 Up 07:59:36 - 08:29:36 -1281
Mohave Valley 08:14:40 -69.2 Dark Up 66.8 245.9 Up 07:59:40 - 08:29:40 -1284
Wildwood 08:14:55 -71.7 Dark Up 70.1 241.8 Up 07:59:55 - 08:29:55 -1304
Lake Havasu City 08:14:40 -69.4 Dark Up 66.8 247.1 Up 07:59:40 - 08:29:40 -1331
Parker 08:14:40 -69.7 Dark Up 66.9 247.9 Up 07:59:40 - 08:29:40 -1370
Idyllwild 08:14:48 -71.2 Dark Up 68.9 245.6 Up 07:59:48 - 08:29:48 -1376
Blythe 08:14:41 -70.2 Dark Up 67.3 248.7 Up 07:59:41 - 08:29:41 -1423
George/Scottsdale 08:14:32 -68.6 Dark Up 65.2 251.7 Up 07:59:32 - 08:29:32 -1451
Calipatria 08:14:45 -71.1 Dark Up 68.2 248.6 Up 07:59:45 - 08:29:45 -1462
Yuma 08:14:42 -70.9 Dark Up 67.7 250.7 Up 07:59:42 - 08:29:42 -1523

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 12TF324, (2027/11/12 08:16UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 30.47  44
Hamal          02:07:10.7 +23:27:42  2.0  5.06  11
32Nu Ari       02:38:49.0 +21:57:41  5.4  2.54  17
PPM 091714     02:28:48.1 +23:52:14  8.5  0.67  15
PPM 091733     02:30:21.5 +23:17:38  9.8  0.28  15
12TF324        02:29:12.9 +23:12:21 13.3        15
Positions are for J2000

Event circumstances last updated at 2020/09/27 21:26:57 UT

Marc W. Buie, Southwest Research Institute

RECON