RECON: TNO occultation with 145452

Event between (145452) 05RN43 and star TYC20568-00817-1 with event index number of 154026

Geocentric closest approach at 2018/09/28 10:39:00 UTC

J2000 position of star is 22:48:02.3 +00:52:48
Equinox of date position of star is 22:48:56.3 +00:58:23
Stellar brightness V=9.8, use SENSEUP=2
Star is 63 degrees from the moon. Moon is 88% illuminated.
TNO apparent brightness V=19.8

[RECON map]
TNO is 40.6 AU from the Sun and 39.7 AU from the Earth.
The TNO is moving 23.2 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 72 seconds.
The 1-sigma cross-track error in the shadow position is 1599 km.
The sky-plane scale is 28784.6 km/arcsec.

The TNO has an absolute magnitude Hv=3.7
Diameter=1096.5 km assuming a 5% albedo -- 47.3 sec chord
Diameter=447.7 km assuming a 30% albedo -- 19.3 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 145452, (2018/09/28 10:39UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:40.9 -29:31:21  1.2 30.59  71
Markab         23:05:41.8 +15:18:23  2.5 14.91  56
1 Psc          22:55:57.0 +01:09:55  6.2  1.75  61
PPM 173396     22:46:20.1 +01:51:04  8.2  1.10  63
PPM 173442     22:48:59.8 +00:58:46  9.9  0.00  62
145452         22:48:59.8 +00:58:45  9.8        62
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 38.7 km RECON observability=0.3 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 10:34:57 -31.2 Dark Up 17.2 250.7 Really Low 10:28:26 - 10:41:28 8956
Tonasket 10:34:57 -31.3 Dark Up 17.2 250.8 Really Low 10:28:26 - 10:41:28 8932
Okanogan 10:34:58 -31.6 Dark Up 17.4 250.8 Really Low 10:28:27 - 10:41:29 8900
Brewster 10:34:56 -31.9 Dark Up 17.6 250.7 Really Low 10:28:25 - 10:41:27 8875
Manson/Chelan 10:34:58 -32.2 Dark Up 17.9 250.5 Really Low 10:28:27 - 10:41:29 8860
Entiat 10:34:58 -32.4 Dark Up 18.1 250.5 Really Low 10:28:27 - 10:41:29 8839
Wenatchee 10:34:56 -32.6 Dark Up 18.2 250.5 Really Low 10:28:25 - 10:41:27 8814
Ellensburg 10:34:57 -33.0 Dark Up 18.5 250.4 Really Low 10:28:26 - 10:41:28 8775
Yakima 10:34:56 -33.3 Dark Up 18.6 250.5 Really Low 10:28:25 - 10:41:27 8734
Toppenish/White Swan 10:34:56 -33.3 Dark Up 18.6 250.7 Really Low 10:28:25 - 10:41:27 8709
Pasco 10:34:54 -32.7 Dark Up 17.8 251.8 Really Low 10:28:23 - 10:41:25 8676
Goldendale 10:34:56 -33.9 Dark Up 19.1 250.6 Really Low 10:28:25 - 10:41:27 8659
PNWRO 10:34:53 -32.7 Dark Up 17.7 252.0 Really Low 10:28:22 - 10:41:24 8647
George/Umatilla 10:34:54 -33.0 Dark Up 18.1 251.7 Really Low 10:28:23 - 10:41:25 8645
The Dalles 10:34:57 -34.2 Dark Up 19.4 250.4 Really Low 10:28:26 - 10:41:28 8642
Maupin 10:34:55 -34.4 Dark Up 19.5 250.6 Really Low 10:28:24 - 10:41:26 8597
Madras/Culver 10:34:55 -34.8 Dark Up 19.7 250.7 Really Low 10:28:24 - 10:41:26 8541
Sisters 10:34:54 -35.3 Dark Up 20.1 250.5 Low 10:28:23 - 10:41:25 8514
Redmond 10:34:55 -35.1 Dark Up 19.8 250.8 Really Low 10:28:24 - 10:41:26 8505
Bend 10:34:54 -35.3 Dark Up 20.0 250.8 Really Low 10:28:23 - 10:41:25 8485
Oregon Observatory 10:34:54 -35.5 Dark Up 20.1 250.7 Low 10:28:23 - 10:41:25 8469
La Pine/Gilchrist 10:34:55 -35.6 Dark Up 20.2 250.8 Low 10:28:24 - 10:41:26 8449
North Lake 10:34:53 -35.5 Dark Up 20.0 251.4 Really Low 10:28:22 - 10:41:24 8393
Chiloquin 10:34:54 -36.5 Dark Up 20.9 250.9 Low 10:28:23 - 10:41:25 8339
Paisley 10:34:52 -35.7 Dark Up 19.9 251.8 Really Low 10:28:21 - 10:41:23 8330
Klamath Falls 10:34:54 -36.7 Dark Up 20.9 251.1 Low 10:28:23 - 10:41:25 8302
Lakeview 10:34:51 -35.9 Dark Up 19.9 252.2 Really Low 10:28:20 - 10:41:22 8273
Tulelake 10:34:53 -36.7 Dark Up 20.8 251.4 Low 10:28:22 - 10:41:24 8269
Cedarville 10:34:51 -36.1 Dark Up 20.0 252.5 Really Low 10:28:20 - 10:41:22 8201
Fall River/Burney 10:34:52 -37.2 Dark Up 21.0 251.8 Low 10:28:21 - 10:41:23 8171
Susanville 10:34:50 -37.1 Dark Up 20.7 252.5 Low 10:28:19 - 10:41:21 8091
Greenville 10:34:51 -37.4 Dark Up 21.0 252.4 Low 10:28:20 - 10:41:22 8068
Gimple 10:34:51 -37.4 Dark Up 20.9 252.5 Low 10:28:20 - 10:41:22 8066
Quincy 10:34:51 -37.5 Dark Up 21.0 252.5 Low 10:28:20 - 10:41:22 8046
Portola 10:34:50 -37.3 Dark Up 20.7 252.9 Low 10:28:19 - 10:41:21 8024
Reno 10:34:50 -37.1 Dark Up 20.3 253.5 Low 10:28:19 - 10:41:21 7985
Carson City 10:34:50 -37.3 Dark Up 20.4 253.6 Low 10:28:19 - 10:41:21 7946
Gardnerville 10:34:48 -37.4 Dark Up 20.4 253.7 Low 10:28:17 - 10:41:19 7919
Yerington 10:34:48 -37.0 Dark Up 20.0 254.1 Really Low 10:28:17 - 10:41:19 7914
Niwot 10:34:34 -26.9 Dark Up 9.2 263.3 Really Low 10:28:03 - 10:41:05 7865
Hawthorne 10:34:48 -36.9 Dark Up 19.7 254.7 Really Low 10:28:17 - 10:41:19 7855
Lee Vining 10:34:49 -37.5 Dark Up 20.2 254.5 Low 10:28:18 - 10:41:20 7804
Tonopah 10:34:45 -36.2 Dark Up 18.8 255.8 Really Low 10:28:14 - 10:41:16 7782
Bishop 10:34:48 -37.3 Dark Up 19.8 255.2 Really Low 10:28:17 - 10:41:19 7727
Beatty 10:34:44 -36.5 Dark Up 18.7 256.5 Really Low 10:28:13 - 10:41:15 7650
Lone Pine 10:34:46 -37.5 Dark Up 19.8 255.7 Really Low 10:28:15 - 10:41:17 7639
Indian Springs 10:34:43 -35.9 Dark Up 17.9 257.3 Really Low 10:28:12 - 10:41:14 7598
CPSLO 10:34:49 -40.0 Dark Up 22.1 254.5 Low 10:28:18 - 10:41:20 7546
Henderson 10:34:41 -35.6 Dark Up 17.5 257.9 Really Low 10:28:10 - 10:41:12 7530
Searchlight/Boulder City 10:34:42 -35.8 Dark Up 17.6 258.1 Really Low 10:28:11 - 10:41:13 7466
Patrick 10:34:40 -35.1 Dark Up 16.8 258.8 Really Low 10:28:09 - 10:41:11 7445
Laughlin/Bullhead City 10:34:40 -35.7 Dark Up 17.4 258.4 Really Low 10:28:09 - 10:41:11 7429
Kingman/Dolan Springs 10:34:40 -35.3 Dark Up 16.9 258.7 Really Low 10:28:09 - 10:41:11 7424
DCO 10:34:39 -34.7 Dark Up 16.2 259.3 Really Low 10:28:08 - 10:41:10 7402
Mohave Valley 10:34:41 -35.8 Dark Up 17.4 258.5 Really Low 10:28:10 - 10:41:12 7399
Wildwood 10:34:46 -39.1 Dark Up 20.8 256.3 Low 10:28:15 - 10:41:17 7378
Lake Havasu City 10:34:40 -35.8 Dark Up 17.3 258.8 Really Low 10:28:09 - 10:41:11 7352
Parker 10:34:41 -36.0 Dark Up 17.3 258.9 Really Low 10:28:10 - 10:41:12 7313
Idyllwild 10:34:43 -37.9 Dark Up 19.4 257.6 Really Low 10:28:12 - 10:41:14 7307
Blythe 10:34:40 -36.4 Dark Up 17.7 258.9 Really Low 10:28:09 - 10:41:11 7260
Calipatria 10:34:42 -37.3 Dark Up 18.5 258.5 Really Low 10:28:11 - 10:41:13 7221
Yuma 10:34:40 -36.9 Dark Up 17.9 259.2 Really Low 10:28:09 - 10:41:11 7160

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 145452, (2018/09/28 10:39UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.5 -29:37:23  1.2 30.59  71
Markab         23:04:45.7 +15:12:18  2.5 14.91  56
1 Psc          22:54:59.5 +01:03:54  6.2  1.75  61
PPM 173396     22:45:22.7 +01:45:08  8.2  1.10  63
PPM 173442     22:48:02.3 +00:52:48  9.9  0.00  62
145452         22:48:02.3 +00:52:48  9.8        62
Positions are for J2000

Event circumstances last updated at 2017/08/02 16:57:17 UT

Marc W. Buie, Southwest Research Institute

RECON