RECON: TNO occultation with 14LM28

Event between 14LM28 and star UC4-564-056610 with event index number of 199931

Geocentric closest approach at 2018/06/25 05:45:15 UTC

J2000 position of star is 16:56:29.5 +22:37:23
Equinox of date position of star is 16:57:14.0 +22:35:48
Stellar brightness R=12.9, use SENSEUP=32
Star is 41 degrees from the moon. Moon is 92% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 16.8 AU from the Sun and 16.1 AU from the Earth.
The TNO is moving 25.7 km/sec on the sky relative to the star, or, 7.9 arcsec/hr.
The 1-sigma error in the time of the event is 52 seconds.
The 1-sigma cross-track error in the shadow position is 5022 km.
The sky-plane scale is 11692.8 km/arcsec.

The TNO has an absolute magnitude Hv=9.6
Diameter=73.1 km assuming a 5% albedo -- 2.8 sec chord
Diameter=29.8 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14LM28, (2018/06/25 05:45UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:33.9 +38:48:06  0.0 26.82  66
27Bet Her      16:31:00.9 +21:27:01  2.8  6.19  38
PPM 105335     16:55:43.0 +20:55:47  6.5  1.70  39
PPM 105357     16:57:07.3 +22:04:44  8.5  0.52  40
PPM 105380     16:57:59.9 +22:44:34  9.3  0.22  41
14LM28         16:57:16.5 +22:35:42 12.9        41
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 24.6 km RECON observability=0.7 and success probability=6.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 05:46:16 -11.7 CT Up 61.5 152.7 Up 05:41:25 - 05:51:07 1593
Tonasket 05:46:16 -11.9 CT Up 61.8 152.6 Up 05:41:25 - 05:51:07 1570
Okanogan 05:46:17 -12.2 AT Up 62.0 152.0 Up 05:41:26 - 05:51:08 1534
Brewster 05:46:18 -12.3 AT Up 62.2 151.4 Up 05:41:27 - 05:51:09 1505
Manson/Chelan 05:46:18 -12.4 AT Up 62.2 150.5 Up 05:41:27 - 05:51:09 1481
Entiat 05:46:18 -12.5 AT Up 62.4 150.2 Up 05:41:27 - 05:51:09 1458
Wenatchee 05:46:19 -12.7 AT Up 62.6 149.7 Up 05:41:28 - 05:51:10 1431
Ellensburg 05:46:19 -13.0 AT Up 62.9 148.9 Up 05:41:28 - 05:51:10 1387
Yakima 05:46:19 -13.3 AT Up 63.2 148.5 Up 05:41:28 - 05:51:10 1345
Toppenish/White Swan 05:46:19 -13.6 AT Up 63.5 148.6 Up 05:41:28 - 05:51:10 1325
Pasco 05:46:15 -14.1 AT Up 64.0 150.9 Up 05:41:24 - 05:51:06 1323
PNWRO 05:46:14 -14.4 AT Up 64.3 151.1 Up 05:41:23 - 05:51:05 1300
George/Umatilla 05:46:16 -14.4 AT Up 64.2 150.1 Up 05:41:25 - 05:51:07 1287
Goldendale 05:46:20 -13.9 AT Up 63.8 147.2 Up 05:41:29 - 05:51:11 1264
The Dalles 05:46:21 -13.9 AT Up 63.8 146.2 Up 05:41:30 - 05:51:12 1238
Maupin 05:46:21 -14.3 AT Up 64.2 146.0 Up 05:41:30 - 05:51:12 1195
Madras/Culver 05:46:21 -14.8 AT Up 64.7 145.2 Up 05:41:30 - 05:51:12 1138
Redmond 05:46:21 -15.1 AT Up 64.9 144.7 Up 05:41:30 - 05:51:12 1101
Sisters 05:46:22 -14.9 AT Up 64.7 144.0 Up 05:41:31 - 05:51:13 1100
Bend 05:46:22 -15.2 AT Up 65.0 144.2 Up 05:41:31 - 05:51:13 1077
Oregon Observatory 05:46:22 -15.3 AT Up 65.1 143.7 Up 05:41:31 - 05:51:13 1058
La Pine/Gilchrist 05:46:22 -15.4 AT Up 65.3 143.3 Up 05:41:31 - 05:51:13 1036
North Lake 05:46:20 -16.0 AT Up 65.9 143.9 Up 05:41:29 - 05:51:11 996
Paisley 05:46:19 -16.6 AT Up 66.5 143.9 Up 05:41:28 - 05:51:10 941
Chiloquin 05:46:23 -16.2 AT Up 66.0 141.1 Up 05:41:32 - 05:51:14 917
Lakeview 05:46:18 -17.1 AT Up 67.0 143.6 Up 05:41:27 - 05:51:09 889
Klamath Falls 05:46:23 -16.5 AT Up 66.3 140.8 Up 05:41:32 - 05:51:14 881
Niwot 05:45:30 -24.0 Dark Up 72.5 181.3 Up 05:40:39 - 05:50:21 880
Tulelake 05:46:22 -16.9 AT Up 66.6 141.0 Up 05:41:31 - 05:51:13 855
Cedarville 05:46:18 -17.7 AT Up 67.6 143.0 Up 05:41:27 - 05:51:09 822
Fall River/Burney 05:46:22 -17.7 AT Up 67.4 139.8 Up 05:41:31 - 05:51:13 759
Susanville 05:46:19 -18.5 Dark Up 68.2 140.3 Up 05:41:28 - 05:51:10 699
Gimple 05:46:20 -18.6 Dark Up 68.3 139.4 Up 05:41:29 - 05:51:11 668
Greenville 05:46:20 -18.6 Dark Up 68.3 139.3 Up 05:41:29 - 05:51:11 667
Quincy 05:46:20 -18.8 Dark Up 68.4 138.9 Up 05:41:29 - 05:51:11 645
Portola 05:46:18 -19.1 Dark Up 68.8 139.7 Up 05:41:27 - 05:51:09 636
Reno 05:46:16 -19.6 Dark Up 69.3 140.7 Up 05:41:25 - 05:51:07 614
Carson City 05:46:16 -19.9 Dark Up 69.6 140.1 Up 05:41:25 - 05:51:07 576
Yerington 05:46:14 -20.3 Dark Up 70.0 141.2 Up 05:41:23 - 05:51:05 562
Gardnerville 05:46:16 -20.1 Dark Up 69.8 139.8 Up 05:41:25 - 05:51:07 551
Hawthorne 05:46:12 -20.9 Dark Up 70.7 141.6 Up 05:41:21 - 05:51:03 518
Tonopah 05:46:07 -21.9 Dark Up 71.7 144.2 Up 05:41:16 - 05:50:58 484
Lee Vining 05:46:14 -21.2 Dark Up 70.9 139.4 Up 05:41:23 - 05:51:05 452
Bishop 05:46:11 -22.0 Dark Up 71.7 140.0 Up 05:41:20 - 05:51:02 396
Beatty 05:46:05 -23.1 Dark Up 72.8 143.2 Up 05:41:14 - 05:50:56 365
Indian Springs 05:46:01 -23.8 Dark Up 73.6 145.5 Up 05:41:10 - 05:50:52 344
Lone Pine 05:46:10 -22.8 Dark Up 72.4 139.3 Up 05:41:19 - 05:51:01 317
Henderson 05:46:00 -24.5 Dark Up 74.4 146.5 Up 05:41:09 - 05:50:51 295
Patrick 05:45:56 -25.5 Dark Up 75.4 148.7 Up 05:41:05 - 05:50:47 243
Searchlight/Boulder City 05:45:59 -25.0 Dark Up 74.9 145.5 Up 05:41:08 - 05:50:50 234
DCO 05:45:53 -26.0 Dark Up 75.9 150.4 Up 05:41:02 - 05:50:44 221
Kingman/Dolan Springs 05:45:56 -25.6 Dark Up 75.5 147.6 Up 05:41:05 - 05:50:47 216
Laughlin/Bullhead City 05:45:58 -25.4 Dark Up 75.3 145.9 Up 05:41:07 - 05:50:49 206
Mohave Valley 05:45:58 -25.7 Dark Up 75.5 145.4 Up 05:41:07 - 05:50:49 177
CPSLO 05:46:18 -22.7 Dark Up 71.9 130.4 Up 05:41:27 - 05:51:09 150
Lake Havasu City 05:45:56 -26.1 Dark Up 75.9 145.3 Up 05:41:05 - 05:50:47 138
Parker 05:45:56 -26.4 Dark Up 76.2 144.5 Up 05:41:05 - 05:50:47 102
Wildwood 05:46:11 -24.7 Dark Up 73.9 132.1 Up 05:41:20 - 05:51:02 40
Blythe 05:45:57 -26.8 Dark Up 76.5 142.3 Up 05:41:06 - 05:50:48 39
Idyllwild 05:46:04 -25.8 Dark Up 75.3 136.2 Up 05:41:13 - 05:50:55 26
Calipatria 05:46:00 -26.8 Dark Up 76.4 138.0 Up 05:41:09 - 05:50:51 -29
Yuma 05:45:57 -27.6 Dark Up 77.2 139.6 Up 05:41:06 - 05:50:48 -63

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 14LM28, (2018/06/25 05:45UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.6 +38:47:06  0.0 26.82  66
27Bet Her      16:30:13.1 +21:29:22  2.8  6.19  38
PPM 105335     16:54:55.2 +20:57:30  6.5  1.70  39
PPM 105357     16:56:20.1 +22:06:25  8.5  0.52  40
PPM 105380     16:57:13.1 +22:46:13  9.3  0.22  41
14LM28         16:56:29.5 +22:37:23 12.9        41
Positions are for J2000

Event circumstances last updated at 2017/07/01 17:39:21 UT

Marc W. Buie, Southwest Research Institute

RECON