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 16:57:15.1 +22:35:45
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 24.3 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 05:46:17 -11.7 CT Up 61.5 152.8 Up 05:41:27 - 05:51:08 1598
Tonasket 05:46:17 -11.9 CT Up 61.8 152.6 Up 05:41:27 - 05:51:08 1575
Okanogan 05:46:18 -12.2 AT Up 62.0 152.0 Up 05:41:27 - 05:51:08 1540
Brewster 05:46:18 -12.3 AT Up 62.2 151.4 Up 05:41:28 - 05:51:09 1510
Manson/Chelan 05:46:19 -12.4 AT Up 62.3 150.5 Up 05:41:29 - 05:51:10 1486
Entiat 05:46:19 -12.6 AT Up 62.4 150.2 Up 05:41:29 - 05:51:10 1463
Wenatchee 05:46:20 -12.7 AT Up 62.6 149.8 Up 05:41:29 - 05:51:10 1436
Ellensburg 05:46:20 -13.0 AT Up 62.9 148.9 Up 05:41:30 - 05:51:11 1392
Yakima 05:46:20 -13.3 AT Up 63.2 148.5 Up 05:41:30 - 05:51:11 1351
Toppenish/White Swan 05:46:20 -13.6 AT Up 63.5 148.6 Up 05:41:29 - 05:51:10 1330
Pasco 05:46:16 -14.1 AT Up 64.0 150.9 Up 05:41:26 - 05:51:07 1328
PNWRO 05:46:15 -14.4 AT Up 64.3 151.1 Up 05:41:25 - 05:51:06 1305
George/Umatilla 05:46:17 -14.4 AT Up 64.2 150.1 Up 05:41:26 - 05:51:07 1292
Goldendale 05:46:21 -13.9 AT Up 63.8 147.2 Up 05:41:31 - 05:51:12 1269
The Dalles 05:46:22 -13.9 AT Up 63.8 146.2 Up 05:41:31 - 05:51:12 1243
Maupin 05:46:22 -14.3 AT Up 64.2 146.0 Up 05:41:31 - 05:51:12 1201
Madras/Culver 05:46:22 -14.8 AT Up 64.7 145.2 Up 05:41:31 - 05:51:12 1143
Redmond 05:46:22 -15.1 AT Up 64.9 144.7 Up 05:41:31 - 05:51:12 1106
Sisters 05:46:23 -14.9 AT Up 64.7 144.0 Up 05:41:33 - 05:51:14 1105
Bend 05:46:22 -15.2 AT Up 65.0 144.2 Up 05:41:32 - 05:51:13 1082
Oregon Observatory 05:46:23 -15.3 AT Up 65.1 143.7 Up 05:41:32 - 05:51:13 1063
La Pine/Gilchrist 05:46:23 -15.4 AT Up 65.3 143.3 Up 05:41:32 - 05:51:13 1041
North Lake 05:46:21 -16.0 AT Up 65.9 143.9 Up 05:41:31 - 05:51:12 1001
Paisley 05:46:20 -16.6 AT Up 66.5 143.9 Up 05:41:30 - 05:51:11 946
Chiloquin 05:46:24 -16.2 AT Up 66.0 141.1 Up 05:41:34 - 05:51:15 921
Lakeview 05:46:19 -17.1 AT Up 67.0 143.6 Up 05:41:29 - 05:51:10 894
Klamath Falls 05:46:24 -16.5 AT Up 66.3 140.8 Up 05:41:33 - 05:51:14 886
Niwot 05:45:31 -24.0 Dark Up 72.5 181.3 Up 05:40:40 - 05:50:21 881
Tulelake 05:46:23 -16.9 AT Up 66.6 141.0 Up 05:41:32 - 05:51:13 860
Cedarville 05:46:19 -17.8 AT Up 67.6 143.0 Up 05:41:28 - 05:51:09 826
Fall River/Burney 05:46:22 -17.7 AT Up 67.4 139.8 Up 05:41:32 - 05:51:13 764
Susanville 05:46:20 -18.5 Dark Up 68.2 140.3 Up 05:41:30 - 05:51:11 704
Gimple 05:46:21 -18.6 Dark Up 68.3 139.4 Up 05:41:30 - 05:51:11 672
Greenville 05:46:21 -18.6 Dark Up 68.3 139.3 Up 05:41:31 - 05:51:12 672
Quincy 05:46:21 -18.8 Dark Up 68.4 138.9 Up 05:41:31 - 05:51:12 650
Portola 05:46:19 -19.1 Dark Up 68.8 139.7 Up 05:41:29 - 05:51:10 641
Reno 05:46:17 -19.6 Dark Up 69.3 140.7 Up 05:41:27 - 05:51:08 619
Carson City 05:46:17 -19.9 Dark Up 69.6 140.1 Up 05:41:27 - 05:51:08 581
Yerington 05:46:15 -20.3 Dark Up 70.0 141.2 Up 05:41:24 - 05:51:05 566
Gardnerville 05:46:17 -20.1 Dark Up 69.8 139.8 Up 05:41:27 - 05:51:08 555
Hawthorne 05:46:13 -20.9 Dark Up 70.7 141.6 Up 05:41:23 - 05:51:04 522
Tonopah 05:46:08 -21.9 Dark Up 71.7 144.2 Up 05:41:18 - 05:50:59 488
Lee Vining 05:46:14 -21.2 Dark Up 70.9 139.4 Up 05:41:24 - 05:51:05 456
Bishop 05:46:12 -22.0 Dark Up 71.7 140.0 Up 05:41:22 - 05:51:03 400
Beatty 05:46:07 -23.1 Dark Up 72.8 143.2 Up 05:41:16 - 05:50:57 369
Indian Springs 05:46:03 -23.8 Dark Up 73.6 145.5 Up 05:41:12 - 05:50:53 347
Lone Pine 05:46:11 -22.8 Dark Up 72.4 139.3 Up 05:41:20 - 05:51:01 322
Henderson 05:46:00 -24.5 Dark Up 74.4 146.5 Up 05:41:10 - 05:50:51 298
Patrick 05:45:56 -25.5 Dark Up 75.4 148.7 Up 05:41:06 - 05:50:47 246
Searchlight/Boulder City 05:46:00 -25.0 Dark Up 74.9 145.5 Up 05:41:09 - 05:50:50 238
DCO 05:45:53 -26.0 Dark Up 75.9 150.4 Up 05:41:03 - 05:50:44 223
Kingman/Dolan Springs 05:45:56 -25.6 Dark Up 75.5 147.6 Up 05:41:06 - 05:50:47 220
Laughlin/Bullhead City 05:45:58 -25.4 Dark Up 75.3 145.9 Up 05:41:08 - 05:50:49 210
Mohave Valley 05:45:58 -25.7 Dark Up 75.5 145.4 Up 05:41:08 - 05:50:49 181
CPSLO 05:46:19 -22.7 Dark Up 71.9 130.4 Up 05:41:29 - 05:51:10 155
Lake Havasu City 05:45:57 -26.1 Dark Up 75.9 145.3 Up 05:41:07 - 05:50:48 141
Parker 05:45:57 -26.4 Dark Up 76.2 144.6 Up 05:41:06 - 05:50:47 103
Wildwood 05:46:12 -24.7 Dark Up 73.9 132.2 Up 05:41:21 - 05:51:02 44
Blythe 05:45:58 -26.8 Dark Up 76.5 142.3 Up 05:41:07 - 05:50:48 43
Idyllwild 05:46:05 -25.8 Dark Up 75.3 136.2 Up 05:41:15 - 05:50:56 28
Calipatria 05:46:01 -26.8 Dark Up 76.4 138.0 Up 05:41:10 - 05:50:51 -24
Yuma 05:45:57 -27.6 Dark Up 77.2 139.6 Up 05:41:07 - 05:50:48 -58

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 2017/12/04 18:47:14 UT

Marc W. Buie, Southwest Research Institute

RECON