RECON: TNO occultation with 145451

Event between (145451) 05RM43 and star GA1060:00666473 with event index number of 304703

Geocentric closest approach at 2018/12/24 02:22:07 UTC

J2000 position of star is 04:52:51.2 +16:45:24
Equinox of date position of star is 04:53:56.3 +16:47:12
Stellar brightness G=13.5, use SENSEUP=32
Star is 37 degrees from the moon. Moon is 97% illuminated.
TNO apparent brightness V=20.1

[RECON map]
TNO is 37.0 AU from the Sun and 36.0 AU from the Earth.
The TNO is moving 23.7 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 83 seconds.
The 1-sigma cross-track error in the shadow position is 1693 km.
The sky-plane scale is 26145.1 km/arcsec.

The TNO has an absolute magnitude Hv=4.4
Diameter=794.4 km assuming a 5% albedo -- 33.5 sec chord
Diameter=324.3 km assuming a 30% albedo -- 13.7 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 145451, (2018/12/24 02:22UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:00.7 +16:32:45  0.8  4.06  41
Bellatrix      05:26:09.0 +06:21:55  1.6 13.06  34
PPM 120426     04:58:28.1 +17:10:54  6.3  1.15  36
PPM 120367     04:55:09.0 +17:03:23  7.5  0.39  37
PPM 120358     04:54:37.5 +16:51:06 10.8  0.17  37
145451         04:53:56.9 +16:47:13 13.5        37
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 5.0 sigma about the mid-time.
The median site spacing is 20.0 km RECON observability=1.0 and success probability=27.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 02:24:52 -21.8 Dark Up 29.3 98.8 Low 02:17:25 - 02:32:19 1325
Kelowna 02:24:51 -22.1 Dark Up 29.5 99.1 Low 02:17:24 - 02:32:18 1323
Penticton 02:24:52 -21.9 Dark Up 29.5 98.8 Low 02:17:25 - 02:32:19 1296
Okanagan Falls 02:24:53 -21.9 Dark Up 29.5 98.6 Low 02:17:26 - 02:32:20 1280
Oliver 02:24:54 -21.8 Dark Up 29.5 98.6 Low 02:17:27 - 02:32:21 1266
Anarchist Mountain Observatory 02:24:54 -21.9 Dark Up 29.7 98.6 Low 02:17:27 - 02:32:21 1248
Oroville 02:24:54 -21.9 Dark Up 29.6 98.5 Low 02:17:27 - 02:32:21 1243
Tonasket 02:24:55 -21.8 Dark Up 29.7 98.4 Low 02:17:28 - 02:32:22 1223
Okanogan 02:24:56 -21.7 Dark Up 29.6 98.1 Low 02:17:29 - 02:32:23 1198
Brewster 02:24:57 -21.5 Dark Up 29.5 97.8 Low 02:17:30 - 02:32:24 1178
Manson/Chelan 02:24:58 -21.2 Dark Up 29.3 97.4 Low 02:17:31 - 02:32:25 1167
Entiat 02:24:59 -21.1 Dark Up 29.3 97.2 Low 02:17:32 - 02:32:26 1149
Wenatchee 02:25:00 -21.0 Dark Up 29.3 97.0 Low 02:17:33 - 02:32:27 1129
Ellensburg 02:25:01 -20.8 Dark Up 29.2 96.6 Low 02:17:34 - 02:32:28 1098
Yakima 02:25:03 -20.7 Dark Up 29.2 96.3 Low 02:17:36 - 02:32:30 1063
Toppenish/White Swan 02:25:03 -20.7 Dark Up 29.4 96.4 Low 02:17:36 - 02:32:30 1041
Pasco 02:25:02 -21.6 Dark Up 30.2 97.3 Up 02:17:35 - 02:32:29 1007
Goldendale 02:25:05 -20.3 Dark Up 29.1 95.7 Low 02:17:38 - 02:32:32 1001
The Dalles 02:25:07 -20.0 Dark Up 28.9 95.3 Low 02:17:40 - 02:32:34 988
George/Umatilla 02:25:03 -21.4 Dark Up 30.1 96.9 Up 02:17:36 - 02:32:30 982
PNWRO 02:25:02 -21.7 Dark Up 30.4 97.3 Up 02:17:35 - 02:32:29 981
Maupin 02:25:07 -20.0 Dark Up 29.0 95.2 Low 02:17:40 - 02:32:34 950
Madras/Culver 02:25:09 -19.9 Dark Up 29.0 94.9 Low 02:17:42 - 02:32:36 902
Sisters 02:25:11 -19.5 Dark Up 28.7 94.3 Low 02:17:44 - 02:32:38 881
Redmond 02:25:10 -19.8 Dark Up 29.0 94.6 Low 02:17:43 - 02:32:37 871
Bend 02:25:11 -19.6 Dark Up 29.0 94.4 Low 02:17:44 - 02:32:38 855
Oregon Observatory 02:25:11 -19.5 Dark Up 28.9 94.2 Low 02:17:44 - 02:32:38 842
La Pine/Gilchrist 02:25:12 -19.4 Dark Up 28.8 94.1 Low 02:17:45 - 02:32:39 825
North Lake 02:25:13 -19.7 Dark Up 29.3 94.3 Low 02:17:46 - 02:32:40 774
Chiloquin 02:25:16 -18.9 Dark Up 28.7 93.2 Low 02:17:49 - 02:32:43 732
Paisley 02:25:14 -19.8 Dark Up 29.6 94.2 Low 02:17:47 - 02:32:41 717
Klamath Falls 02:25:17 -18.8 Dark Up 28.8 93.1 Low 02:17:50 - 02:32:44 699
Tulelake 02:25:17 -19.0 Dark Up 29.0 93.1 Low 02:17:50 - 02:32:44 669
Lakeview 02:25:14 -19.8 Dark Up 29.8 94.1 Low 02:17:47 - 02:32:41 667
Cedarville 02:25:16 -19.8 Dark Up 30.0 93.8 Low 02:17:49 - 02:32:43 604
Fall River/Burney 02:25:19 -18.8 Dark Up 29.1 92.7 Low 02:17:52 - 02:32:46 584
Susanville 02:25:20 -19.2 Dark Up 29.7 92.9 Low 02:17:53 - 02:32:47 510
Greenville 02:25:21 -18.9 Dark Up 29.5 92.5 Low 02:17:54 - 02:32:48 491
Gimple 02:25:21 -19.0 Dark Up 29.6 92.6 Low 02:17:54 - 02:32:48 489
Quincy 02:25:21 -18.9 Dark Up 29.5 92.4 Low 02:17:54 - 02:32:48 472
Portola 02:25:21 -19.2 Dark Up 29.9 92.6 Low 02:17:54 - 02:32:48 450
Reno 02:25:21 -19.6 Dark Up 30.4 92.9 Up 02:17:54 - 02:32:48 412
Carson City 02:25:21 -19.5 Dark Up 30.4 92.7 Up 02:17:54 - 02:32:48 378
Gardnerville 02:25:22 -19.5 Dark Up 30.5 92.6 Up 02:17:55 - 02:32:49 354
Yerington 02:25:21 -20.0 Dark Up 30.9 93.0 Up 02:17:54 - 02:32:48 346
Hawthorne 02:25:21 -20.2 Dark Up 31.4 93.1 Up 02:17:54 - 02:32:48 291
Lee Vining 02:25:23 -19.7 Dark Up 31.0 92.4 Up 02:17:56 - 02:32:50 247
Tonopah 02:25:20 -21.2 Dark Up 32.5 93.7 Up 02:17:53 - 02:32:47 218
Niwot 02:24:50 -30.7 Dark Up 41.3 103.8 Up 02:17:23 - 02:32:17 197
Bishop 02:25:23 -20.1 Dark Up 31.6 92.5 Up 02:17:56 - 02:32:50 175
Beatty 02:25:21 -21.3 Dark Up 32.9 93.3 Up 02:17:54 - 02:32:48 97
Lone Pine 02:25:25 -20.2 Dark Up 31.9 92.3 Up 02:17:58 - 02:32:52 95
Indian Springs 02:25:20 -22.0 Dark Up 33.8 93.7 Up 02:17:53 - 02:32:47 43
CPSLO 02:25:32 -17.8 AT Up 29.9 90.0 Low 02:18:05 - 02:32:59 25
Henderson 02:25:20 -22.5 Dark Up 34.4 93.8 Up 02:17:53 - 02:32:47 -24
Searchlight/Boulder City 02:25:21 -22.4 Dark Up 34.5 93.4 Up 02:17:54 - 02:32:48 -81
Patrick 02:25:19 -23.2 Dark Up 35.4 94.1 Up 02:17:52 - 02:32:46 -107
Laughlin/Bullhead City 02:25:21 -22.6 Dark Up 34.8 93.4 Up 02:17:54 - 02:32:48 -117
Kingman/Dolan Springs 02:25:20 -23.0 Dark Up 35.2 93.8 Up 02:17:53 - 02:32:47 -126
Wildwood 02:25:31 -19.1 Dark Up 31.6 90.4 Up 02:18:04 - 02:32:58 -140
Mohave Valley 02:25:21 -22.5 Dark Up 34.8 93.3 Up 02:17:54 - 02:32:48 -145
DCO 02:25:18 -23.7 Dark Up 36.0 94.3 Up 02:17:51 - 02:32:45 -152
Lake Havasu City 02:25:22 -22.6 Dark Up 35.0 93.1 Up 02:17:55 - 02:32:49 -189
Idyllwild 02:25:28 -20.5 Dark Up 33.1 91.2 Up 02:18:01 - 02:32:55 -216
Parker 02:25:22 -22.6 Dark Up 35.1 92.9 Up 02:17:55 - 02:32:49 -225
Blythe 02:25:24 -22.2 Dark Up 34.9 92.4 Up 02:17:57 - 02:32:51 -271
Calipatria 02:25:27 -21.3 Dark Up 34.1 91.5 Up 02:18:00 - 02:32:54 -301
Yuma 02:25:26 -22.0 Dark Up 34.9 91.7 Up 02:17:59 - 02:32:53 -363

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 145451, (2018/12/24 02:22UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  4.06  41
Bellatrix      05:25:07.8 +06:20:58  1.6 13.06  34
PPM 120426     04:57:22.2 +17:09:12  6.3  1.15  36
PPM 120367     04:54:03.1 +17:01:36  7.5  0.39  37
PPM 120358     04:53:31.8 +16:49:18 10.8  0.17  37
145451         04:52:51.2 +16:45:24 13.5        37
Positions are for J2000

Event circumstances last updated at 2018/10/23 20:47:27 UT

Marc W. Buie, Southwest Research Institute

RECON