RECON: TNO occultation with 14UT114

Event between 14UT114 and star UC4-633-015909 with event index number of 173974

Geocentric closest approach at 2018/12/19 07:28:47 UTC

J2000 position of star is 04:05:13.3 +36:29:04
Equinox of date position of star is 04:06:24.0 +36:31:56
Stellar brightness R=16.0, use SENSEUP=128
Star is 32 degrees from the moon. Moon is 85% illuminated.
TNO apparent brightness V=20.9

[RECON map]
TNO is 16.0 AU from the Sun and 15.1 AU from the Earth.
The TNO is moving 19.6 km/sec on the sky relative to the star, or, 6.4 arcsec/hr.
The 1-sigma error in the time of the event is 161 seconds.
The 1-sigma cross-track error in the shadow position is 1200 km.
The sky-plane scale is 10954.9 km/arcsec.

The TNO has an absolute magnitude Hv=8.8
Diameter=104.7 km assuming a 5% albedo -- 5.3 sec chord
Diameter=42.8 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14UT114, (2018/12/19 07:29UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:00.7 +16:32:45  0.8 21.10  28
44Zet Per      03:55:19.7 +31:56:18  2.8  5.14  27
PPM 069012     04:02:29.8 +37:02:29  6.3  0.94  31
PPM 069067     04:05:48.2 +35:58:16  7.7  0.58  31
PPM 069077     04:06:13.5 +36:47:00  9.2  0.25  32
14UT114        04:06:28.1 +36:32:05 16.0        32
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 25.9 km RECON observability=1.0 and success probability=11.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 07:27:16 -63.9 Dark Up 71.4 235.0 Up 07:13:24 - 07:41:09 -1917
Tonasket 07:27:16 -64.1 Dark Up 71.6 235.5 Up 07:13:23 - 07:41:08 -1942
Okanogan 07:27:17 -64.4 Dark Up 71.8 236.1 Up 07:13:24 - 07:41:09 -1977
Brewster 07:27:18 -64.7 Dark Up 72.1 236.4 Up 07:13:26 - 07:41:11 -2004
Manson/Chelan 07:27:19 -64.8 Dark Up 72.4 236.3 Up 07:13:27 - 07:41:12 -2021
Entiat 07:27:19 -65.0 Dark Up 72.6 236.7 Up 07:13:27 - 07:41:12 -2044
Wenatchee 07:27:20 -65.2 Dark Up 72.8 237.2 Up 07:13:28 - 07:41:13 -2071
Ellensburg 07:27:22 -65.6 Dark Up 73.1 238.0 Up 07:13:29 - 07:41:14 -2112
Yakima 07:27:22 -65.9 Dark Up 73.3 239.1 Up 07:13:29 - 07:41:14 -2156
Toppenish/White Swan 07:27:22 -66.2 Dark Up 73.3 240.0 Up 07:13:29 - 07:41:14 -2182
Pasco 07:27:17 -66.6 Dark Up 72.6 242.6 Up 07:13:24 - 07:41:09 -2213
Goldendale 07:27:23 -66.6 Dark Up 73.9 240.9 Up 07:13:31 - 07:41:16 -2236
PNWRO 07:27:16 -66.8 Dark Up 72.6 243.7 Up 07:13:23 - 07:41:08 -2243
George/Umatilla 07:27:18 -66.8 Dark Up 72.9 243.2 Up 07:13:26 - 07:41:11 -2246
The Dalles 07:27:25 -66.7 Dark Up 74.2 240.9 Up 07:13:33 - 07:41:18 -2255
Maupin 07:27:25 -67.2 Dark Up 74.3 242.4 Up 07:13:32 - 07:41:17 -2302
Madras/Culver 07:27:26 -67.7 Dark Up 74.6 244.1 Up 07:13:33 - 07:41:18 -2361
Sisters 07:27:28 -67.9 Dark Up 75.0 244.3 Up 07:13:35 - 07:41:20 -2391
Redmond 07:27:26 -68.0 Dark Up 74.8 245.1 Up 07:13:34 - 07:41:19 -2400
Bend 07:27:26 -68.2 Dark Up 75.0 245.6 Up 07:13:34 - 07:41:19 -2421
Oregon Observatory 07:27:28 -68.3 Dark Up 75.1 246.0 Up 07:13:35 - 07:41:20 -2438
La Pine/Gilchrist 07:27:28 -68.5 Dark Up 75.2 246.6 Up 07:13:35 - 07:41:20 -2459
North Lake 07:27:26 -69.0 Dark Up 75.0 249.1 Up 07:13:34 - 07:41:19 -2516
Chiloquin 07:27:30 -69.4 Dark Up 75.9 250.0 Up 07:13:37 - 07:41:22 -2574
Paisley 07:27:25 -69.6 Dark Up 74.9 251.6 Up 07:13:33 - 07:41:18 -2581
Klamath Falls 07:27:30 -69.7 Dark Up 75.9 251.4 Up 07:13:38 - 07:41:23 -2613
Lakeview 07:27:25 -70.2 Dark Up 75.0 253.7 Up 07:13:32 - 07:41:17 -2639
Tulelake 07:27:30 -70.0 Dark Up 75.8 252.9 Up 07:13:37 - 07:41:22 -2647
Cedarville 07:27:25 -70.8 Dark Up 75.0 256.3 Up 07:13:33 - 07:41:18 -2714
Fall River/Burney 07:27:30 -70.9 Dark Up 76.0 256.5 Up 07:13:37 - 07:41:22 -2748
Susanville 07:27:28 -71.7 Dark Up 75.6 259.9 Up 07:13:35 - 07:41:20 -2828
Greenville 07:27:29 -71.9 Dark Up 75.8 260.6 Up 07:13:37 - 07:41:22 -2854
Gimple 07:27:29 -71.9 Dark Up 75.8 260.7 Up 07:13:36 - 07:41:21 -2855
Quincy 07:27:29 -72.0 Dark Up 75.9 261.4 Up 07:13:37 - 07:41:22 -2876
Portola 07:27:28 -72.3 Dark Up 75.5 262.4 Up 07:13:35 - 07:41:20 -2897
Reno 07:27:25 -72.8 Dark Up 75.1 264.1 Up 07:13:33 - 07:41:18 -2936
Carson City 07:27:26 -73.1 Dark Up 75.1 265.4 Up 07:13:33 - 07:41:18 -2976
Niwot 07:26:27 -72.2 Dark Up 64.0 272.7 Up 07:12:35 - 07:40:20 -2992
Gardnerville 07:27:26 -73.3 Dark Up 75.1 266.4 Up 07:13:33 - 07:41:18 -3003
Yerington 07:27:23 -73.5 Dark Up 74.6 266.7 Up 07:13:30 - 07:41:15 -3006
Hawthorne 07:27:21 -74.0 Dark Up 74.2 268.7 Up 07:13:29 - 07:41:14 -3065
Lee Vining 07:27:24 -74.4 Dark Up 74.6 270.4 Up 07:13:31 - 07:41:16 -3120
Tonopah 07:27:16 -74.8 Dark Up 73.1 271.2 Up 07:13:23 - 07:41:08 -3135
Bishop 07:27:21 -75.2 Dark Up 74.0 272.9 Up 07:13:29 - 07:41:14 -3195
Beatty 07:27:15 -76.0 Dark Up 72.7 275.1 Up 07:13:23 - 07:41:08 -3268
Lone Pine 07:27:20 -76.0 Dark Up 73.7 275.7 Up 07:13:28 - 07:41:13 -3283
Indian Springs 07:27:11 -76.6 Dark Up 71.8 276.5 Up 07:13:18 - 07:41:03 -3317
Henderson 07:27:08 -77.2 Dark Up 71.2 278.3 Up 07:13:16 - 07:41:01 -3383
CPSLO 07:27:33 -76.2 Dark Up 75.6 279.9 Up 07:13:41 - 07:41:26 -3385
Searchlight/Boulder City 07:27:08 -77.8 Dark Up 71.1 280.0 Up 07:13:16 - 07:41:01 -3447
Patrick 07:27:04 -77.9 Dark Up 70.2 280.3 Up 07:13:11 - 07:40:56 -3464
Laughlin/Bullhead City 07:27:07 -78.1 Dark Up 70.7 280.9 Up 07:13:15 - 07:41:00 -3483
Kingman/Dolan Springs 07:27:05 -78.1 Dark Up 70.3 280.9 Up 07:13:12 - 07:40:57 -3486
DCO 07:27:01 -78.3 Dark Up 69.6 281.2 Up 07:13:08 - 07:40:53 -3504
Mohave Valley 07:27:07 -78.4 Dark Up 70.7 281.6 Up 07:13:15 - 07:41:00 -3513
Wildwood 07:27:26 -78.1 Dark Up 73.7 284.1 Up 07:13:34 - 07:41:19 -3549
Lake Havasu City 07:27:06 -78.8 Dark Up 70.4 282.8 Up 07:13:14 - 07:40:59 -3560
Parker 07:27:07 -79.2 Dark Up 70.3 283.7 Up 07:13:14 - 07:40:59 -3598
Idyllwild 07:27:18 -79.1 Dark Up 72.1 285.0 Up 07:13:25 - 07:41:10 -3614
Blythe 07:27:08 -79.6 Dark Up 70.4 285.2 Up 07:13:16 - 07:41:01 -3652
Calipatria 07:27:13 -79.9 Dark Up 71.0 286.6 Up 07:13:20 - 07:41:05 -3696
Yuma 07:27:09 -80.5 Dark Up 70.2 287.6 Up 07:13:17 - 07:41:02 -3753

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 14UT114, (2018/12/19 07:29UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 21.10  28
44Zet Per      03:54:07.9 +31:53:01  2.8  5.14  27
PPM 069012     04:01:14.8 +36:59:22  6.3  0.94  31
PPM 069067     04:04:33.8 +35:55:14  7.7  0.58  31
PPM 069077     04:04:58.6 +36:43:58  9.2  0.25  32
14UT114        04:05:13.3 +36:29:04 16.0        32
Positions are for J2000

Event circumstances last updated at 2017/12/05 19:07:16 UT

Marc W. Buie, Southwest Research Institute

RECON