RECON: TNO occultation with 14HT199

Event between 14HT199 and star GA0720:05753586 with event index number of 256187

Geocentric closest approach at 2020/04/16 09:56:29 UTC

J2000 position of star is 15:54:21.7 -16:22:45
Equinox of date position of star is 15:55:25.6 -16:26:00
Stellar brightness G=15.4, use SENSEUP=128
Star is 74 degrees from the moon. Moon is 36% illuminated.
TNO apparent brightness V=22.1

[RECON map]
TNO is 29.9 AU from the Sun and 29.0 AU from the Earth.
The TNO is moving 18.6 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 207 seconds.
The 1-sigma cross-track error in the shadow position is 3052 km.
The sky-plane scale is 21060.3 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=213.8 km assuming a 5% albedo -- 11.1 sec chord
Diameter=87.3 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 14HT199, (2020/04/16 09:56UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:39.3 -26:28:31  0.9 12.94  64
8Bet1Sco       16:06:37.2 -19:51:34  2.6  4.32  70
46The Lib      15:54:59.0 -16:47:15  4.3  0.37  74
PPM 230994     15:58:14.3 -16:05:32  6.5  0.74  73
PPM 230940     15:56:08.6 -16:25:11  8.9  0.15  74
14HT199        15:55:30.9 -16:26:16 15.4        74
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 4.3 sigma about the mid-time.
The median site spacing is 12.4 km RECON observability=1.0 and success probability=7.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Rutland 09:57:41 -24.2 Dark Down 23.6 176.3 Low 09:42:41 - 10:12:41 2952
Penticton 09:57:42 -24.6 Dark Down 24.0 176.1 Low 09:42:42 - 10:12:42 2933
Okanagan Falls 09:57:42 -24.8 Dark Down 24.2 176.1 Low 09:42:42 - 10:12:42 2924
Southern Okanagan 09:57:42 -24.9 Dark Down 24.4 176.1 Low 09:42:42 - 10:12:42 2917
Oroville 09:57:42 -25.1 Dark Down 24.6 176.2 Low 09:42:42 - 10:12:42 2907
Tonasket 09:57:42 -25.3 Dark Down 24.8 176.2 Low 09:42:42 - 10:12:42 2896
Okanogan 09:57:42 -25.6 Dark Down 25.2 176.0 Low 09:42:42 - 10:12:42 2878
Brewster 09:57:43 -25.9 Dark Down 25.4 175.8 Low 09:42:43 - 10:12:43 2862
Manson/Chelan 09:57:45 -26.2 Dark Down 25.6 175.4 Low 09:42:45 - 10:12:45 2846
Entiat 09:57:44 -26.4 Dark Down 25.8 175.3 Low 09:42:44 - 10:12:44 2834
Wenatchee 09:57:45 -26.7 Dark Down 26.1 175.2 Low 09:42:45 - 10:12:45 2820
Ellensburg 09:57:46 -27.1 Dark Down 26.5 175.0 Low 09:42:46 - 10:12:46 2796
Pasco 09:57:40 -27.2 Dark Down 27.3 176.5 Low 09:42:40 - 10:12:40 2781
Yakima 09:57:46 -27.4 Dark Down 26.9 174.9 Low 09:42:46 - 10:12:46 2775
PNWRO 09:57:39 -27.3 Dark Down 27.6 176.7 Low 09:42:39 - 10:12:39 2771
Toppenish/White Swan 09:57:45 -27.6 Dark Down 27.1 175.1 Low 09:42:45 - 10:12:45 2767
George/Umatilla 09:57:41 -27.6 Dark Down 27.6 176.2 Low 09:42:41 - 10:12:41 2760
Goldendale 09:57:47 -28.2 Dark Down 27.6 174.6 Low 09:42:47 - 10:12:47 2731
The Dalles 09:57:48 -28.5 Dark Down 27.8 174.2 Low 09:42:48 - 10:12:48 2714
Maupin 09:57:48 -28.8 Dark Down 28.3 174.3 Low 09:42:48 - 10:12:48 2693
Madras/Culver 09:57:48 -29.3 Dark Down 28.8 174.2 Low 09:42:48 - 10:12:48 2663
Redmond 09:57:48 -29.6 Dark Down 29.2 174.2 Low 09:42:48 - 10:12:48 2643
Sisters 09:57:50 -29.8 Dark Down 29.1 173.7 Low 09:42:50 - 10:12:50 2637
Niwot 09:56:37 -25.1 Dark Up 32.7 191.9 Up 09:41:37 - 10:11:37 2635
Bend 09:57:48 -29.9 Dark Down 29.4 174.0 Low 09:42:48 - 10:12:48 2628
Oregon Observatory 09:57:49 -30.1 Dark Down 29.5 173.9 Low 09:42:49 - 10:12:49 2616
La Pine/Gilchrist 09:57:49 -30.3 Dark Down 29.7 173.8 Low 09:42:49 - 10:12:49 2604
North Lake 09:57:46 -30.4 Dark Down 30.2 174.4 Up 09:42:46 - 10:12:46 2590
Paisley 09:57:45 -30.7 Dark Down 30.8 174.8 Up 09:42:45 - 10:12:45 2565
Lakeview 09:57:44 -31.1 Dark Down 31.3 174.9 Up 09:42:44 - 10:12:44 2539
Chiloquin 09:57:51 -31.3 Dark Down 30.8 173.3 Up 09:42:51 - 10:12:51 2535
Klamath Falls 09:57:50 -31.6 Dark Down 31.1 173.4 Up 09:42:50 - 10:12:50 2516
Tulelake 09:57:49 -31.7 Dark Down 31.4 173.7 Up 09:42:49 - 10:12:49 2506
Cedarville 09:57:43 -31.5 Dark Down 32.0 175.1 Up 09:42:43 - 10:12:43 2503
Fall River/Burney 09:57:48 -32.4 Dark Down 32.3 173.7 Up 09:42:48 - 10:12:48 2453
Susanville 09:57:45 -32.6 Dark Down 33.0 174.5 Up 09:42:45 - 10:12:45 2428
Gimple 09:57:46 -33.0 Dark Down 33.3 174.3 Up 09:42:46 - 10:12:46 2407
Greenville 09:57:46 -33.0 Dark Down 33.3 174.2 Up 09:42:46 - 10:12:46 2406
Portola 09:57:44 -33.1 Dark Down 33.6 174.7 Up 09:42:44 - 10:12:44 2394
Quincy 09:57:46 -33.2 Dark Down 33.5 174.1 Up 09:42:46 - 10:12:46 2393
Reno 09:57:41 -33.0 Dark Down 34.0 175.4 Up 09:42:41 - 10:12:41 2389
Carson City 09:57:41 -33.3 Dark Down 34.3 175.4 Up 09:42:41 - 10:12:41 2367
Yerington 09:57:38 -33.2 Dark Down 34.5 176.1 Up 09:42:38 - 10:12:38 2366
Gardnerville 09:57:41 -33.5 Dark Down 34.6 175.4 Up 09:42:41 - 10:12:41 2353
Hawthorne 09:57:35 -33.3 Dark Down 35.0 176.7 Up 09:42:35 - 10:12:35 2346
Tonopah 09:57:29 -33.0 Dark Down 35.5 178.3 Up 09:42:29 - 10:12:29 2340
Lee Vining 09:57:38 -34.0 Dark Down 35.6 176.1 Up 09:42:38 - 10:12:38 2301
Bishop 09:57:34 -34.1 Dark Down 36.2 176.9 Up 09:42:34 - 10:12:34 2275
Beatty 09:57:26 -33.7 Dark Down 36.7 178.8 Up 09:42:26 - 10:12:26 2273
Indian Springs 09:57:21 -33.4 Dark Down 37.0 180.1 Up 09:42:21 - 10:12:21 2270
Henderson 09:57:17 -33.4 Dark Down 37.6 180.9 Up 09:42:17 - 10:12:17 2246
Lone Pine 09:57:32 -34.5 Dark Down 37.0 177.3 Up 09:42:32 - 10:12:32 2231
Patrick 09:57:11 -33.3 Dark Down 38.2 182.3 Up 09:42:11 - 10:12:11 2222
DCO 09:57:08 -33.1 Dark Down 38.5 183.1 Up 09:42:08 - 10:12:08 2213
Searchlight/Boulder City 09:57:16 -33.8 Dark Down 38.1 181.0 Up 09:42:16 - 10:12:16 2209
Kingman/Dolan Springs 09:57:12 -33.5 Dark Down 38.4 182.0 Up 09:42:12 - 10:12:12 2204
Laughlin/Bullhead City 09:57:15 -33.8 Dark Down 38.4 181.4 Up 09:42:15 - 10:12:15 2194
Mohave Valley 09:57:14 -34.0 Dark Down 38.7 181.4 Up 09:42:14 - 10:12:14 2176
Lake Havasu City 09:57:12 -34.2 Dark Down 39.1 181.7 Up 09:42:12 - 10:12:12 2153
Parker 09:57:13 -34.4 Dark Down 39.5 181.8 Up 09:42:13 - 10:12:13 2129
CPSLO 09:57:44 -36.8 Dark Down 38.1 174.1 Up 09:42:44 - 10:12:44 2096
Blythe 09:57:14 -35.0 Dark Down 40.0 181.4 Up 09:42:14 - 10:12:14 2088
Idyllwild 09:57:24 -36.0 Dark Down 39.9 178.8 Up 09:42:24 - 10:12:24 2059
Wildwood 09:57:33 -36.8 Dark Down 39.5 176.5 Up 09:42:33 - 10:12:33 2051
Calipatria 09:57:18 -35.9 Dark Down 40.5 180.3 Up 09:42:18 - 10:12:18 2037
Yuma 09:57:13 -35.7 Dark Down 40.9 181.4 Up 09:42:13 - 10:12:13 2022

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 14HT199, (2020/04/16 09:56UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 12.94  64
8Bet1Sco       16:05:26.2 -19:48:20  2.6  4.32  70
46The Lib      15:53:49.7 -16:43:43  4.3  0.37  74
PPM 230994     15:57:05.2 -16:02:05  6.5  0.74  73
PPM 230940     15:54:59.4 -16:21:41  8.9  0.15  74
14HT199        15:54:21.7 -16:22:45 15.4        74
Positions are for J2000

Event circumstances last updated at 2018/09/21 17:57:15 UT

Marc W. Buie, Southwest Research Institute

RECON