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 04:06:21.8 +36:31:50
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 116 seconds.
The 1-sigma cross-track error in the shadow position is 937 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 +16:32:46  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 25.8 km RECON observability=1.0 and success probability=7.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 07:27:15 -63.9 Dark Up 71.4 235.0 Up 07:17:05 - 07:37:24 -1920
Tonasket 07:27:15 -64.1 Dark Up 71.6 235.5 Up 07:17:06 - 07:37:25 -1946
Okanogan 07:27:16 -64.4 Dark Up 71.8 236.1 Up 07:17:06 - 07:37:25 -1980
Brewster 07:27:17 -64.7 Dark Up 72.1 236.4 Up 07:17:07 - 07:37:26 -2007
Manson/Chelan 07:27:18 -64.8 Dark Up 72.4 236.3 Up 07:17:09 - 07:37:28 -2025
Entiat 07:27:19 -65.0 Dark Up 72.6 236.7 Up 07:17:09 - 07:37:28 -2048
Wenatchee 07:27:19 -65.2 Dark Up 72.8 237.2 Up 07:17:10 - 07:37:29 -2074
Ellensburg 07:27:20 -65.6 Dark Up 73.1 237.9 Up 07:17:11 - 07:37:30 -2116
Yakima 07:27:21 -65.9 Dark Up 73.3 239.1 Up 07:17:11 - 07:37:30 -2160
Toppenish/White Swan 07:27:20 -66.2 Dark Up 73.3 240.0 Up 07:17:11 - 07:37:30 -2186
Pasco 07:27:15 -66.6 Dark Up 72.6 242.6 Up 07:17:06 - 07:37:25 -2216
Goldendale 07:27:23 -66.6 Dark Up 73.9 240.9 Up 07:17:13 - 07:37:32 -2240
PNWRO 07:27:15 -66.8 Dark Up 72.6 243.7 Up 07:17:06 - 07:37:25 -2246
George/Umatilla 07:27:16 -66.8 Dark Up 72.9 243.2 Up 07:17:07 - 07:37:26 -2250
The Dalles 07:27:24 -66.7 Dark Up 74.2 240.9 Up 07:17:14 - 07:37:33 -2259
Maupin 07:27:24 -67.2 Dark Up 74.3 242.4 Up 07:17:14 - 07:37:33 -2307
Madras/Culver 07:27:25 -67.7 Dark Up 74.6 244.1 Up 07:17:15 - 07:37:34 -2365
Sisters 07:27:26 -67.9 Dark Up 75.0 244.3 Up 07:17:17 - 07:37:36 -2395
Redmond 07:27:25 -68.0 Dark Up 74.8 245.1 Up 07:17:16 - 07:37:35 -2404
Bend 07:27:26 -68.2 Dark Up 75.0 245.6 Up 07:17:16 - 07:37:35 -2425
Oregon Observatory 07:27:26 -68.3 Dark Up 75.1 246.0 Up 07:17:17 - 07:37:36 -2442
La Pine/Gilchrist 07:27:27 -68.5 Dark Up 75.2 246.6 Up 07:17:17 - 07:37:36 -2463
North Lake 07:27:25 -69.0 Dark Up 75.0 249.1 Up 07:17:16 - 07:37:35 -2520
Chiloquin 07:27:29 -69.4 Dark Up 75.9 250.0 Up 07:17:20 - 07:37:39 -2579
Paisley 07:27:24 -69.6 Dark Up 74.9 251.6 Up 07:17:14 - 07:37:33 -2585
Klamath Falls 07:27:29 -69.7 Dark Up 75.9 251.4 Up 07:17:20 - 07:37:39 -2617
Lakeview 07:27:24 -70.1 Dark Up 75.0 253.7 Up 07:17:14 - 07:37:33 -2644
Tulelake 07:27:28 -70.0 Dark Up 75.8 252.9 Up 07:17:19 - 07:37:38 -2652
Cedarville 07:27:23 -70.8 Dark Up 75.0 256.3 Up 07:17:14 - 07:37:33 -2718
Fall River/Burney 07:27:29 -70.9 Dark Up 76.0 256.5 Up 07:17:20 - 07:37:39 -2752
Susanville 07:27:26 -71.7 Dark Up 75.6 259.9 Up 07:17:17 - 07:37:36 -2832
Greenville 07:27:28 -71.9 Dark Up 75.8 260.6 Up 07:17:19 - 07:37:38 -2858
Gimple 07:27:28 -71.9 Dark Up 75.8 260.7 Up 07:17:18 - 07:37:37 -2860
Quincy 07:27:28 -72.0 Dark Up 75.9 261.4 Up 07:17:19 - 07:37:38 -2880
Portola 07:27:26 -72.3 Dark Up 75.5 262.4 Up 07:17:17 - 07:37:36 -2901
Reno 07:27:24 -72.7 Dark Up 75.1 264.0 Up 07:17:15 - 07:37:34 -2940
Carson City 07:27:24 -73.1 Dark Up 75.1 265.4 Up 07:17:15 - 07:37:34 -2980
Niwot 07:26:25 -72.2 Dark Up 64.0 272.7 Up 07:16:16 - 07:36:35 -2992
Gardnerville 07:27:24 -73.3 Dark Up 75.1 266.4 Up 07:17:14 - 07:37:33 -3007
Yerington 07:27:22 -73.5 Dark Up 74.6 266.6 Up 07:17:12 - 07:37:31 -3010
Hawthorne 07:27:19 -74.0 Dark Up 74.2 268.7 Up 07:17:10 - 07:37:29 -3069
Lee Vining 07:27:22 -74.4 Dark Up 74.6 270.4 Up 07:17:13 - 07:37:32 -3124
Tonopah 07:27:15 -74.8 Dark Up 73.1 271.2 Up 07:17:05 - 07:37:24 -3139
Bishop 07:27:20 -75.2 Dark Up 74.0 272.9 Up 07:17:11 - 07:37:30 -3199
Beatty 07:27:14 -76.0 Dark Up 72.7 275.1 Up 07:17:04 - 07:37:23 -3271
Lone Pine 07:27:19 -76.0 Dark Up 73.7 275.7 Up 07:17:10 - 07:37:29 -3287
Indian Springs 07:27:09 -76.6 Dark Up 71.8 276.5 Up 07:16:59 - 07:37:18 -3320
Henderson 07:27:07 -77.2 Dark Up 71.2 278.3 Up 07:16:57 - 07:37:16 -3386
CPSLO 07:27:32 -76.2 Dark Up 75.6 279.9 Up 07:17:22 - 07:37:41 -3389
Searchlight/Boulder City 07:27:06 -77.8 Dark Up 71.1 280.0 Up 07:16:57 - 07:37:16 -3450
Patrick 07:27:02 -77.9 Dark Up 70.2 280.3 Up 07:16:53 - 07:37:12 -3466
Laughlin/Bullhead City 07:27:06 -78.1 Dark Up 70.7 280.9 Up 07:16:56 - 07:37:15 -3486
Kingman/Dolan Springs 07:27:03 -78.1 Dark Up 70.3 280.9 Up 07:16:53 - 07:37:12 -3489
DCO 07:27:00 -78.3 Dark Up 69.6 281.2 Up 07:16:50 - 07:37:09 -3507
Mohave Valley 07:27:05 -78.4 Dark Up 70.7 281.6 Up 07:16:56 - 07:37:15 -3516
Wildwood 07:27:24 -78.1 Dark Up 73.7 284.1 Up 07:17:14 - 07:37:33 -3553
Lake Havasu City 07:27:05 -78.8 Dark Up 70.4 282.8 Up 07:16:56 - 07:37:15 -3562
Parker 07:27:05 -79.2 Dark Up 70.3 283.7 Up 07:16:56 - 07:37:15 -3601
Idyllwild 07:27:16 -79.1 Dark Up 72.1 285.0 Up 07:17:07 - 07:37:26 -3618
Blythe 07:27:07 -79.6 Dark Up 70.4 285.2 Up 07:16:58 - 07:37:17 -3655
Calipatria 07:27:12 -79.9 Dark Up 71.0 286.6 Up 07:17:02 - 07:37:21 -3699
Yuma 07:27:08 -80.5 Dark Up 70.2 287.6 Up 07:16:59 - 07:37:18 -3756

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 2017/05/20 18:06:30 UT

Marc W. Buie, Southwest Research Institute

RECON