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 10:09:05 UTC

J2000 position of star is 15:54:21.7 -16:22:45
Equinox of date position of star is 15:55:24.6 -16:25:57
Stellar brightness G=15.4, use SENSEUP=128
Star is 74 degrees from the moon. Moon is 36% illuminated.
TNO apparent brightness V=22.0

[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 373 seconds.
The 1-sigma cross-track error in the shadow position is 5699 km.
The sky-plane scale is 21060.1 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=213.8 km assuming a 5% albedo -- 11.5 sec chord
Diameter=87.3 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 14HT199, (2020/04/16 10:09UT)
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  71
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  74
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 2.4 sigma about the mid-time.
The median site spacing is 13.8 km RECON observability=1.0 and success probability=3.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 10:10:07 -23.5 Dark Down 24.1 179.4 Low 09:55:07 - 10:25:07 4942
Oroville 10:10:05 -23.9 Dark Down 24.7 179.5 Low 09:55:05 - 10:25:05 4917
Tonasket 10:10:05 -24.1 Dark Down 24.9 179.5 Low 09:55:05 - 10:25:05 4906
Okanogan 10:10:06 -24.4 Dark Down 25.3 179.3 Low 09:55:06 - 10:25:06 4888
Brewster 10:10:06 -24.7 Dark Down 25.5 179.1 Low 09:55:06 - 10:25:06 4873
Manson/Chelan 10:10:08 -25.0 Dark Down 25.7 178.7 Low 09:55:08 - 10:25:08 4857
Entiat 10:10:08 -25.2 Dark Down 25.9 178.6 Low 09:55:08 - 10:25:08 4846
Wenatchee 10:10:08 -25.5 Dark Down 26.2 178.5 Low 09:55:08 - 10:25:08 4832
Ellensburg 10:10:09 -25.9 Dark Down 26.6 178.3 Low 09:55:09 - 10:25:09 4809
Pasco 10:10:03 -25.9 Dark Down 27.4 179.8 Low 09:55:03 - 10:25:03 4792
Yakima 10:10:09 -26.3 Dark Down 27.0 178.3 Low 09:55:09 - 10:25:09 4788
PNWRO 10:10:02 -26.0 Dark Down 27.6 180.0 Low 09:55:02 - 10:25:02 4783
Toppenish/White Swan 10:10:09 -26.4 Dark Down 27.2 178.5 Low 09:55:09 - 10:25:09 4780
George/Umatilla 10:10:03 -26.3 Dark Down 27.7 179.6 Low 09:55:03 - 10:25:03 4772
Goldendale 10:10:09 -27.0 Dark Down 27.8 178.0 Low 09:55:09 - 10:25:09 4745
The Dalles 10:10:11 -27.3 Dark Down 28.0 177.6 Low 09:55:11 - 10:25:11 4728
Maupin 10:10:11 -27.6 Dark Down 28.4 177.7 Low 09:55:11 - 10:25:11 4708
Madras/Culver 10:10:10 -28.1 Dark Down 29.0 177.6 Low 09:55:10 - 10:25:10 4678
Redmond 10:10:11 -28.4 Dark Down 29.3 177.6 Low 09:55:11 - 10:25:11 4658
Sisters 10:10:11 -28.5 Dark Down 29.3 177.1 Low 09:55:11 - 10:25:11 4653
Bend 10:10:11 -28.6 Dark Down 29.5 177.4 Low 09:55:11 - 10:25:11 4644
Niwot 10:08:58 -23.3 Dark Up 32.1 195.3 Up 09:53:58 - 10:23:58 4633
Oregon Observatory 10:10:11 -28.8 Dark Down 29.7 177.3 Low 09:55:11 - 10:25:11 4633
La Pine/Gilchrist 10:10:12 -29.0 Dark Down 29.9 177.2 Low 09:55:12 - 10:25:12 4621
North Lake 10:10:09 -29.1 Dark Down 30.3 177.8 Up 09:55:09 - 10:25:09 4606
Paisley 10:10:07 -29.4 Dark Down 30.9 178.2 Up 09:55:07 - 10:25:07 4581
Lakeview 10:10:06 -29.7 Dark Down 31.4 178.4 Up 09:55:06 - 10:25:06 4555
Chiloquin 10:10:13 -30.1 Dark Down 31.0 176.8 Up 09:55:13 - 10:25:13 4552
Klamath Falls 10:10:12 -30.3 Dark Down 31.3 176.9 Up 09:55:12 - 10:25:12 4534
Tulelake 10:10:12 -30.4 Dark Down 31.6 177.2 Up 09:55:12 - 10:25:12 4524
Cedarville 10:10:05 -30.2 Dark Down 32.1 178.6 Up 09:55:05 - 10:25:05 4520
Fall River/Burney 10:10:10 -31.1 Dark Down 32.5 177.2 Up 09:55:10 - 10:25:10 4472
Susanville 10:10:07 -31.3 Dark Down 33.2 178.1 Up 09:55:07 - 10:25:07 4446
Gimple 10:10:08 -31.6 Dark Down 33.5 177.8 Up 09:55:08 - 10:25:08 4426
Greenville 10:10:08 -31.6 Dark Down 33.5 177.7 Up 09:55:08 - 10:25:08 4425
Portola 10:10:05 -31.7 Dark Down 33.8 178.2 Up 09:55:05 - 10:25:05 4413
Quincy 10:10:08 -31.8 Dark Down 33.7 177.7 Up 09:55:08 - 10:25:08 4412
Reno 10:10:02 -31.6 Dark Down 34.1 179.0 Up 09:55:02 - 10:25:02 4407
Carson City 10:10:02 -31.8 Dark Down 34.4 179.0 Up 09:55:02 - 10:25:02 4385
Yerington 10:10:00 -31.7 Dark Down 34.6 179.7 Up 09:55:00 - 10:25:00 4383
Gardnerville 10:10:02 -32.0 Dark Down 34.7 179.0 Up 09:55:02 - 10:25:02 4371
Hawthorne 10:09:57 -31.8 Dark Down 35.1 180.3 Up 09:54:57 - 10:24:57 4363
Tonopah 10:09:50 -31.4 Dark Down 35.5 182.0 Up 09:54:50 - 10:24:50 4356
Lee Vining 10:09:58 -32.4 Dark Down 35.7 179.8 Up 09:54:58 - 10:24:58 4319
Bishop 10:09:55 -32.5 Dark Down 36.3 180.6 Up 09:54:55 - 10:24:55 4293
Beatty 10:09:48 -32.0 Dark Down 36.7 182.5 Up 09:54:48 - 10:24:48 4289
Indian Springs 10:09:42 -31.7 Dark Down 37.0 183.8 Up 09:54:42 - 10:24:42 4285
Henderson 10:09:39 -31.7 Dark Down 37.5 184.7 Up 09:54:39 - 10:24:39 4260
Lone Pine 10:09:53 -32.9 Dark Down 37.0 181.0 Up 09:54:53 - 10:24:53 4249
Patrick 10:09:33 -31.5 Dark Up 38.0 186.0 Up 09:54:33 - 10:24:33 4235
DCO 10:09:29 -31.3 Dark Up 38.2 186.9 Up 09:54:29 - 10:24:29 4225
Searchlight/Boulder City 10:09:37 -32.1 Dark Up 38.0 184.8 Up 09:54:37 - 10:24:37 4223
Kingman/Dolan Springs 10:09:33 -31.8 Dark Up 38.2 185.8 Up 09:54:33 - 10:24:33 4218
Laughlin/Bullhead City 10:09:36 -32.1 Dark Up 38.3 185.2 Up 09:54:36 - 10:24:36 4208
Mohave Valley 10:09:36 -32.3 Dark Up 38.6 185.2 Up 09:54:36 - 10:24:36 4190
Lake Havasu City 10:09:34 -32.4 Dark Up 38.9 185.6 Up 09:54:34 - 10:24:34 4167
Parker 10:09:33 -32.6 Dark Up 39.3 185.6 Up 09:54:33 - 10:24:33 4143
CPSLO 10:10:05 -35.3 Dark Down 38.3 177.9 Up 09:55:05 - 10:25:05 4118
Blythe 10:09:35 -33.2 Dark Up 39.8 185.3 Up 09:54:35 - 10:24:35 4103
Idyllwild 10:09:44 -34.3 Dark Down 39.8 182.7 Up 09:54:44 - 10:24:44 4077
Wildwood 10:09:54 -35.1 Dark Down 39.5 180.4 Up 09:54:54 - 10:24:54 4071
Calipatria 10:09:38 -34.1 Dark Up 40.4 184.2 Up 09:54:38 - 10:24:38 4054
Yuma 10:09:33 -33.8 Dark Up 40.8 185.3 Up 09:54:33 - 10:24:33 4037

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 10:09UT)
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  71
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  74
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 2018/06/05 18:24:02 UT

Marc W. Buie, Southwest Research Institute

RECON