RECON: TNO occultation with 14LM28

Event between 14LM28 and star UC4-597-055120 with event index number of 210709

Geocentric closest approach at 2019/08/20 05:27:51 UTC

J2000 position of star is 16:56:12.5 +29:19:51
Equinox of date position of star is 16:56:54.7 +29:18:12
Stellar brightness R=16.3, use SENSEUP=128
Star is 119 degrees from the moon. Moon is 81% illuminated.
TNO apparent brightness V=22.2

[RECON map]
TNO is 17.0 AU from the Sun and 16.8 AU from the Earth.
The TNO is moving 13.4 km/sec on the sky relative to the star, or, 4.0 arcsec/hr.
The 1-sigma error in the time of the event is 879 seconds.
The 1-sigma cross-track error in the shadow position is 5473 km.
The sky-plane scale is 12206.4 km/arcsec.

The TNO has an absolute magnitude Hv=9.6
Diameter=73.1 km assuming a 5% albedo -- 5.4 sec chord
Diameter=29.8 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14LM28, (2019/08/20 05:28UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:36.2 +38:48:10  0.0 22.81  96
27Bet Her      16:31:03.9 +21:26:53  2.8  9.79 127
53 Her         16:53:42.8 +31:40:13  5.3  2.47 118
PPM 105338     16:55:47.7 +29:00:30  7.9  0.39 119
PPM 105366     16:57:35.9 +29:33:36  8.7  0.29 118
PPM 105372     16:57:42.7 +29:05:13 10.5  0.27 118
14LM28         16:56:58.7 +29:18:03 16.3       118
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 1.0 sigma about the mid-time.
The median site spacing is 21.7 km RECON observability=1.0 and success probability=8.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 05:23:41 -19.4 Dark Up 56.6 247.4 Up 05:08:41 - 05:38:41 816
Tonasket 05:23:42 -19.6 Dark Up 56.6 247.7 Up 05:08:42 - 05:38:42 794
Okanogan 05:23:44 -19.8 Dark Up 56.9 248.0 Up 05:08:44 - 05:38:44 771
Brewster 05:23:46 -19.9 Dark Up 57.1 248.2 Up 05:08:46 - 05:38:46 755
Manson/Chelan 05:23:48 -19.9 Dark Up 57.4 248.1 Up 05:08:48 - 05:38:48 752
Entiat 05:23:49 -20.0 Dark Up 57.5 248.3 Up 05:08:49 - 05:38:49 735
Wenatchee 05:23:51 -20.2 Dark Up 57.7 248.6 Up 05:08:51 - 05:38:51 717
Ellensburg 05:23:53 -20.4 Dark Up 57.9 249.0 Up 05:08:53 - 05:38:53 690
Yakima 05:23:55 -20.7 Dark Up 58.1 249.6 Up 05:08:55 - 05:38:55 654
Toppenish/White Swan 05:23:56 -20.9 Dark Up 58.0 250.1 Up 05:08:56 - 05:38:56 628
Goldendale 05:24:00 -21.1 Dark Up 58.5 250.5 Up 05:09:00 - 05:39:00 598
The Dalles 05:24:03 -21.1 Dark Up 58.8 250.4 Up 05:09:03 - 05:39:03 595
Pasco 05:23:52 -21.6 Dark Up 57.3 251.6 Up 05:08:52 - 05:38:52 561
Maupin 05:24:04 -21.5 Dark Up 58.9 251.2 Up 05:09:04 - 05:39:04 553
George/Umatilla 05:23:54 -21.7 Dark Up 57.5 251.9 Up 05:08:54 - 05:38:54 540
PNWRO 05:23:52 -21.9 Dark Up 57.2 252.2 Up 05:08:52 - 05:38:52 529
Madras/Culver 05:24:07 -21.8 Dark Up 59.1 252.0 Up 05:09:07 - 05:39:07 507
Sisters 05:24:10 -21.9 Dark Up 59.5 252.1 Up 05:09:10 - 05:39:10 499
Redmond 05:24:09 -22.1 Dark Up 59.2 252.6 Up 05:09:09 - 05:39:09 478
Bend 05:24:10 -22.2 Dark Up 59.4 252.8 Up 05:09:10 - 05:39:10 466
Oregon Observatory 05:24:12 -22.2 Dark Up 59.5 252.9 Up 05:09:12 - 05:39:12 457
La Pine/Gilchrist 05:24:13 -22.3 Dark Up 59.6 253.2 Up 05:09:13 - 05:39:13 442
North Lake 05:24:13 -23.0 Dark Up 59.3 254.5 Up 05:09:13 - 05:39:13 375
Chiloquin 05:24:20 -23.0 Dark Up 60.1 254.7 Up 05:09:20 - 05:39:20 363
Klamath Falls 05:24:21 -23.3 Dark Up 60.2 255.4 Up 05:09:21 - 05:39:21 329
Paisley 05:24:14 -23.5 Dark Up 59.2 255.8 Up 05:09:14 - 05:39:14 310
Tulelake 05:24:21 -23.6 Dark Up 60.0 256.1 Up 05:09:21 - 05:39:21 291
Lakeview 05:24:16 -24.0 Dark Up 59.2 256.8 Up 05:09:16 - 05:39:16 256
Fall River/Burney 05:24:26 -24.3 Dark Up 60.1 257.8 Up 05:09:26 - 05:39:26 209
Cedarville 05:24:18 -24.6 Dark Up 59.2 258.1 Up 05:09:18 - 05:39:18 191
Susanville 05:24:26 -25.2 Dark Up 59.7 259.5 Up 05:09:26 - 05:39:26 118
Greenville 05:24:28 -25.2 Dark Up 60.0 259.7 Up 05:09:28 - 05:39:28 108
Gimple 05:24:28 -25.2 Dark Up 59.9 259.8 Up 05:09:28 - 05:39:28 104
Quincy 05:24:29 -25.3 Dark Up 60.0 260.1 Up 05:09:29 - 05:39:29 91
Portola 05:24:28 -25.7 Dark Up 59.7 260.7 Up 05:09:28 - 05:39:28 56
Reno 05:24:27 -26.2 Dark Up 59.2 261.7 Up 05:09:27 - 05:39:27 3
Carson City 05:24:29 -26.5 Dark Up 59.2 262.3 Up 05:09:29 - 05:39:29 -31
Gardnerville 05:24:30 -26.7 Dark Up 59.2 262.7 Up 05:09:30 - 05:39:30 -54
Yerington 05:24:27 -27.0 Dark Up 58.8 263.1 Up 05:09:27 - 05:39:27 -79
Hawthorne 05:24:27 -27.6 Dark Up 58.4 264.3 Up 05:09:27 - 05:39:27 -145
Lee Vining 05:24:32 -27.8 Dark Up 58.8 264.9 Up 05:09:32 - 05:39:32 -169
Tonopah 05:24:24 -28.7 Dark Up 57.4 266.0 Up 05:09:24 - 05:39:24 -253
Bishop 05:24:32 -28.6 Dark Up 58.3 266.3 Up 05:09:32 - 05:39:32 -257
CPSLO 05:24:52 -28.8 Dark Up 60.2 268.4 Up 05:09:52 - 05:39:52 -316
Lone Pine 05:24:35 -29.3 Dark Up 58.1 267.8 Up 05:09:35 - 05:39:35 -338
Beatty 05:24:28 -29.8 Dark Up 57.1 268.2 Up 05:09:28 - 05:39:28 -375
Indian Springs 05:24:24 -30.6 Dark Up 56.2 269.3 Up 05:09:24 - 05:39:24 -454
Wildwood 05:24:50 -30.9 Dark Up 58.5 271.6 Up 05:09:50 - 05:39:50 -525
Henderson 05:24:24 -31.4 Dark Up 55.6 270.5 Up 05:09:24 - 05:39:24 -533
Niwot 05:23:25 -32.4 Dark Up 48.2 271.1 Up 05:08:25 - 05:38:25 -546
Searchlight/Boulder City 05:24:27 -31.9 Dark Up 55.6 271.4 Up 05:09:27 - 05:39:27 -586
Laughlin/Bullhead City 05:24:27 -32.3 Dark Up 55.3 272.0 Up 05:09:27 - 05:39:27 -628
Patrick 05:24:23 -32.5 Dark Up 54.7 272.0 Up 05:09:23 - 05:39:23 -639
Idyllwild 05:24:44 -32.2 Dark Up 56.9 273.1 Up 05:09:44 - 05:39:44 -650
Kingman/Dolan Springs 05:24:24 -32.5 Dark Up 54.9 272.3 Up 05:09:24 - 05:39:24 -650
Mohave Valley 05:24:28 -32.5 Dark Up 55.3 272.4 Up 05:09:28 - 05:39:28 -652
DCO 05:24:21 -33.1 Dark Up 54.1 272.8 Up 05:09:21 - 05:39:21 -697
Lake Havasu City 05:24:29 -32.9 Dark Up 55.0 273.1 Up 05:09:29 - 05:39:29 -698
Parker 05:24:30 -33.2 Dark Up 55.0 273.6 Up 05:09:30 - 05:39:30 -730
Calipatria 05:24:42 -33.3 Dark Up 55.9 274.6 Up 05:09:42 - 05:39:42 -759
Blythe 05:24:35 -33.5 Dark Up 55.2 274.3 Up 05:09:35 - 05:39:35 -761
Yuma 05:24:39 -34.1 Dark Up 55.1 275.6 Up 05:09:39 - 05:39:39 -838

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, (2019/08/20 05:28UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.6 +38:47:06  0.0 22.81  96
27Bet Her      16:30:13.1 +21:29:22  2.8  9.79 127
53 Her         16:52:57.9 +31:42:06  5.3  2.47 118
PPM 105338     16:55:01.4 +29:02:20  7.9  0.39 119
PPM 105366     16:56:49.9 +29:35:22  8.7  0.29 118
PPM 105372     16:56:56.3 +29:06:59 10.5  0.27 118
14LM28         16:56:12.5 +29:19:51 16.3       118
Positions are for J2000

Event circumstances last updated at 2017/12/06 19:13:04 UT

Marc W. Buie, Southwest Research Institute

RECON