RECON: TNO occultation with 385458

Event between (385458) 03SP317 and star GA0960:00063094 with event index number of 216686

Geocentric closest approach at 2019/10/05 11:03:00 UTC

J2000 position of star is 00:41:14.9 +06:50:15
Equinox of date position of star is 00:42:13.4 +06:56:27
Stellar brightness G=16.3, use SENSEUP=128
Star is 93 degrees from the moon. Moon is 48% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 42.4 AU from the Sun and 41.4 AU from the Earth.
The TNO is moving 25.1 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 107 seconds.
The 1-sigma cross-track error in the shadow position is 2032 km.
The sky-plane scale is 30021.0 km/arcsec.

The TNO has an absolute magnitude Hv=6.6
Diameter=288.4 km assuming a 5% albedo -- 11.5 sec chord
Diameter=117.7 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 385458, (2019/10/05 11:03UT)
Object            RA         Dec     mag  sep  mel
Algenib        00:14:15.4 +15:17:36  2.8 10.81  90
63Del Psc      00:49:42.6 +07:41:32  4.4  1.99  95
PPM 143671     00:37:05.0 +07:15:52  8.0  1.33  92
PPM 143808     00:44:00.0 +06:55:10  9.3  0.43  93
PPM 143761     00:41:38.6 +06:50:58 11.6  0.18  93
385458         00:42:16.3 +06:56:45 16.3        93
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 23.7 km RECON observability=1.0 and success probability=24.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 10:59:59 -29.4 Dark Down 30.9 240.4 Up 10:50:35 - 11:09:24 217
Kelowna 10:59:59 -29.2 Dark Down 30.6 240.8 Up 10:50:34 - 11:09:23 217
Penticton 10:59:59 -29.5 Dark Down 30.9 240.8 Up 10:50:34 - 11:09:23 184
Okanagan Falls 10:59:58 -29.6 Dark Down 31.0 240.9 Up 10:50:34 - 11:09:23 166
Oliver 10:59:58 -29.7 Dark Down 31.1 241.0 Up 10:50:34 - 11:09:23 150
Anarchist Mountain Observatory 10:59:57 -29.7 Dark Down 31.1 241.2 Up 10:50:33 - 11:09:22 131
Oroville 10:59:58 -29.8 Dark Down 31.1 241.2 Up 10:50:33 - 11:09:22 125
Tonasket 10:59:57 -29.9 Dark Down 31.2 241.3 Up 10:50:33 - 11:09:22 102
Okanogan 10:59:57 -30.1 Dark Down 31.5 241.4 Up 10:50:33 - 11:09:22 71
Brewster 10:59:57 -30.4 Dark Down 31.7 241.3 Up 10:50:33 - 11:09:22 47
Manson/Chelan 10:59:58 -30.7 Dark Down 32.1 241.1 Up 10:50:33 - 11:09:22 31
Entiat 10:59:58 -30.9 Dark Down 32.2 241.2 Up 10:50:33 - 11:09:22 11
Wenatchee 10:59:58 -31.0 Dark Down 32.4 241.2 Up 10:50:33 - 11:09:22 -14
Ellensburg 10:59:58 -31.4 Dark Down 32.7 241.2 Up 10:50:33 - 11:09:22 -51
Yakima 10:59:57 -31.6 Dark Down 32.9 241.4 Up 10:50:33 - 11:09:22 -91
Toppenish/White Swan 10:59:57 -31.6 Dark Down 32.9 241.7 Up 10:50:32 - 11:09:21 -114
Pasco 10:59:54 -30.9 Dark Down 32.2 243.0 Up 10:50:30 - 11:09:19 -143
Goldendale 10:59:57 -32.2 Dark Down 33.4 241.6 Up 10:50:32 - 11:09:21 -164
PNWRO 10:59:53 -30.9 Dark Down 32.2 243.3 Up 10:50:29 - 11:09:18 -170
George/Umatilla 10:59:54 -31.2 Dark Down 32.5 242.9 Up 10:50:30 - 11:09:19 -173
The Dalles 10:59:58 -32.5 Dark Down 33.8 241.4 Up 10:50:33 - 11:09:22 -181
Maupin 10:59:57 -32.6 Dark Down 33.9 241.8 Up 10:50:32 - 11:09:21 -224
Madras/Culver 10:59:57 -32.9 Dark Down 34.2 242.1 Up 10:50:32 - 11:09:21 -278
Sisters 10:59:57 -33.4 Dark Down 34.6 241.8 Up 10:50:33 - 11:09:22 -305
Redmond 10:59:57 -33.1 Dark Down 34.4 242.2 Up 10:50:32 - 11:09:21 -313
Bend 10:59:57 -33.3 Dark Down 34.6 242.2 Up 10:50:32 - 11:09:21 -333
Oregon Observatory 10:59:57 -33.5 Dark Down 34.7 242.2 Up 10:50:32 - 11:09:21 -349
La Pine/Gilchrist 10:59:57 -33.6 Dark Down 34.9 242.3 Up 10:50:32 - 11:09:21 -368
North Lake 10:59:55 -33.5 Dark Down 34.7 243.1 Up 10:50:31 - 11:09:20 -421
Chiloquin 10:59:57 -34.4 Dark Down 35.6 242.7 Up 10:50:32 - 11:09:21 -476
Paisley 10:59:54 -33.5 Dark Down 34.7 243.8 Up 10:50:29 - 11:09:18 -482
Klamath Falls 10:59:56 -34.5 Dark Down 35.7 242.9 Up 10:50:32 - 11:09:21 -512
Lakeview 10:59:53 -33.6 Dark Down 34.8 244.3 Up 10:50:29 - 11:09:18 -536
Tulelake 10:59:56 -34.5 Dark Down 35.7 243.4 Up 10:50:31 - 11:09:20 -544
Cedarville 10:59:52 -33.8 Dark Down 35.0 244.8 Up 10:50:28 - 11:09:17 -606
Fall River/Burney 10:59:55 -34.9 Dark Down 36.0 244.0 Up 10:50:30 - 11:09:19 -638
Susanville 10:59:53 -34.7 Dark Down 35.8 245.1 Up 10:50:28 - 11:09:17 -714
Greenville 10:59:53 -35.0 Dark Down 36.1 245.0 Up 10:50:29 - 11:09:18 -738
Gimple 10:59:53 -34.9 Dark Down 36.0 245.1 Up 10:50:29 - 11:09:18 -739
Quincy 10:59:53 -35.1 Dark Down 36.2 245.2 Up 10:50:29 - 11:09:18 -759
Portola 10:59:52 -34.8 Dark Down 35.9 245.7 Up 10:50:27 - 11:09:16 -779
Reno 10:59:50 -34.5 Dark Down 35.6 246.4 Up 10:50:26 - 11:09:15 -816
Carson City 10:59:50 -34.6 Dark Down 35.7 246.7 Up 10:50:25 - 11:09:14 -853
Gardnerville 10:59:50 -34.7 Dark Down 35.7 246.9 Up 10:50:25 - 11:09:14 -880
Yerington 10:59:49 -34.3 Dark Down 35.3 247.3 Up 10:50:24 - 11:09:13 -883
Niwot 10:59:23 -23.8 Dark Down 24.8 257.5 Low 10:49:59 - 11:08:48 -906
Hawthorne 10:59:47 -34.1 Dark Down 35.1 248.1 Up 10:50:22 - 11:09:11 -939
Lee Vining 10:59:48 -34.7 Dark Down 35.7 248.0 Up 10:50:23 - 11:09:12 -991
Tonopah 10:59:44 -33.3 Dark Down 34.3 249.5 Up 10:50:19 - 11:09:08 -1007
Bishop 10:59:46 -34.4 Dark Down 35.4 249.0 Up 10:50:21 - 11:09:10 -1064
Beatty 10:59:42 -33.4 Dark Down 34.3 250.6 Up 10:50:18 - 11:09:07 -1135
Lone Pine 10:59:45 -34.5 Dark Down 35.4 249.8 Up 10:50:20 - 11:09:09 -1149
Indian Springs 10:59:40 -32.7 Dark Down 33.6 251.6 Up 10:50:15 - 11:09:04 -1183
CPSLO 10:59:50 -36.9 Dark Down 37.8 248.6 Up 10:50:26 - 11:09:15 -1248
Henderson 10:59:38 -32.4 Dark Down 33.2 252.5 Up 10:50:14 - 11:09:03 -1249
Searchlight/Boulder City 10:59:38 -32.5 Dark Down 33.4 252.9 Up 10:50:13 - 11:09:02 -1311
Patrick 10:59:35 -31.7 Dark Down 32.6 253.7 Up 10:50:11 - 11:09:00 -1329
Laughlin/Bullhead City 10:59:37 -32.4 Dark Down 33.2 253.3 Up 10:50:12 - 11:09:01 -1347
Kingman/Dolan Springs 10:59:35 -32.0 Dark Down 32.8 253.7 Up 10:50:11 - 11:09:00 -1351
DCO 10:59:34 -31.3 Dark Down 32.1 254.4 Up 10:50:09 - 11:08:58 -1370
Mohave Valley 10:59:36 -32.4 Dark Down 33.3 253.5 Up 10:50:12 - 11:09:01 -1376
Wildwood 10:59:45 -35.8 Dark Down 36.6 251.1 Up 10:50:21 - 11:09:10 -1408
Lake Havasu City 10:59:36 -32.4 Dark Down 33.2 253.9 Up 10:50:11 - 11:09:00 -1422
Parker 10:59:35 -32.5 Dark Down 33.2 254.2 Up 10:50:11 - 11:09:00 -1460
Idyllwild 10:59:41 -34.5 Dark Down 35.3 252.7 Up 10:50:16 - 11:09:05 -1473
Blythe 10:59:36 -32.9 Dark Down 33.6 254.3 Up 10:50:11 - 11:09:00 -1513
Calipatria 10:59:38 -33.8 Dark Down 34.5 254.0 Up 10:50:13 - 11:09:02 -1554
Yuma 10:59:36 -33.2 Dark Down 33.9 254.9 Up 10:50:11 - 11:09:00 -1612

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 385458, (2019/10/05 11:03UT)
Object            RA         Dec     mag  sep  mel
Algenib        00:13:14.2 +15:11:01  2.8 10.81  90
63Del Psc      00:48:41.1 +07:35:05  4.4  1.99  95
PPM 143671     00:36:03.7 +07:09:21  8.0  1.33  92
PPM 143808     00:42:58.6 +06:48:41  9.3  0.43  93
PPM 143761     00:40:37.3 +06:44:29 11.6  0.18  93
385458         00:41:14.9 +06:50:15 16.3        93
Positions are for J2000

Event circumstances last updated at 2018/11/03 21:35:45 UT

Marc W. Buie, Southwest Research Institute

RECON