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 10:39:35 UTC

J2000 position of star is 22:48:02.3 +00:52:48
Equinox of date position of star is 22:48:57.3 +00:58:30
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 69 seconds.
The 1-sigma cross-track error in the shadow position is 1546 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 10:40UT)
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 10:35:33 -31.1 Dark Up 17.1 250.9 Really Low 10:29:19 - 10:41:46 9351
Tonasket 10:35:33 -31.3 Dark Up 17.1 250.9 Really Low 10:29:19 - 10:41:46 9327
Okanogan 10:35:32 -31.6 Dark Up 17.3 250.9 Really Low 10:29:19 - 10:41:46 9296
Brewster 10:35:32 -31.8 Dark Up 17.6 250.8 Really Low 10:29:19 - 10:41:46 9271
Manson/Chelan 10:35:33 -32.2 Dark Up 17.9 250.6 Really Low 10:29:19 - 10:41:46 9255
Entiat 10:35:32 -32.3 Dark Up 18.0 250.6 Really Low 10:29:19 - 10:41:46 9234
Wenatchee 10:35:32 -32.5 Dark Up 18.1 250.6 Really Low 10:29:19 - 10:41:46 9210
Ellensburg 10:35:32 -32.9 Dark Up 18.4 250.6 Really Low 10:29:19 - 10:41:46 9171
Yakima 10:35:32 -33.2 Dark Up 18.5 250.7 Really Low 10:29:18 - 10:41:45 9129
Toppenish/White Swan 10:35:31 -33.2 Dark Up 18.5 250.9 Really Low 10:29:18 - 10:41:45 9104
Pasco 10:35:29 -32.6 Dark Up 17.7 251.9 Really Low 10:29:16 - 10:41:43 9072
Goldendale 10:35:31 -33.8 Dark Up 19.0 250.7 Really Low 10:29:18 - 10:41:45 9054
PNWRO 10:35:29 -32.6 Dark Up 17.6 252.2 Really Low 10:29:15 - 10:41:42 9043
George/Umatilla 10:35:29 -32.9 Dark Up 18.0 251.8 Really Low 10:29:16 - 10:41:43 9041
The Dalles 10:35:31 -34.2 Dark Up 19.3 250.5 Really Low 10:29:18 - 10:41:45 9037
Maupin 10:35:31 -34.4 Dark Up 19.4 250.7 Really Low 10:29:17 - 10:41:44 8992
Madras/Culver 10:35:31 -34.7 Dark Up 19.6 250.9 Really Low 10:29:17 - 10:41:44 8936
Sisters 10:35:31 -35.2 Dark Up 20.0 250.6 Really Low 10:29:17 - 10:41:44 8910
Redmond 10:35:30 -35.0 Dark Up 19.7 250.9 Really Low 10:29:17 - 10:41:44 8900
Bend 10:35:30 -35.2 Dark Up 19.9 250.9 Really Low 10:29:17 - 10:41:44 8881
Oregon Observatory 10:35:31 -35.4 Dark Up 20.0 250.9 Low 10:29:17 - 10:41:44 8865
La Pine/Gilchrist 10:35:30 -35.5 Dark Up 20.1 250.9 Low 10:29:17 - 10:41:44 8844
North Lake 10:35:29 -35.5 Dark Up 19.9 251.5 Really Low 10:29:16 - 10:41:43 8789
Chiloquin 10:35:30 -36.4 Dark Up 20.8 251.0 Low 10:29:16 - 10:41:43 8735
Paisley 10:35:28 -35.6 Dark Up 19.8 252.0 Really Low 10:29:15 - 10:41:42 8725
Klamath Falls 10:35:30 -36.6 Dark Up 20.8 251.2 Low 10:29:16 - 10:41:43 8698
Lakeview 10:35:27 -35.8 Dark Up 19.8 252.3 Really Low 10:29:14 - 10:41:41 8668
Tulelake 10:35:29 -36.6 Dark Up 20.7 251.5 Low 10:29:15 - 10:41:42 8664
Cedarville 10:35:27 -36.1 Dark Up 19.9 252.6 Really Low 10:29:13 - 10:41:40 8596
Fall River/Burney 10:35:28 -37.1 Dark Up 20.9 251.9 Low 10:29:15 - 10:41:42 8567
Susanville 10:35:27 -37.0 Dark Up 20.6 252.7 Low 10:29:14 - 10:41:41 8487
Greenville 10:35:27 -37.3 Dark Up 20.9 252.5 Low 10:29:14 - 10:41:41 8463
Gimple 10:35:27 -37.3 Dark Up 20.8 252.6 Low 10:29:14 - 10:41:41 8462
Quincy 10:35:27 -37.5 Dark Up 20.9 252.6 Low 10:29:14 - 10:41:41 8442
Portola 10:35:27 -37.2 Dark Up 20.6 253.0 Low 10:29:14 - 10:41:41 8420
Reno 10:35:25 -37.0 Dark Up 20.2 253.6 Low 10:29:12 - 10:41:39 8380
Carson City 10:35:25 -37.2 Dark Up 20.3 253.7 Low 10:29:11 - 10:41:38 8341
Gardnerville 10:35:25 -37.3 Dark Up 20.3 253.8 Low 10:29:11 - 10:41:38 8315
Yerington 10:35:24 -36.9 Dark Up 19.9 254.2 Really Low 10:29:10 - 10:41:37 8310
Niwot 10:35:10 -26.8 Dark Up 9.1 263.4 Really Low 10:28:56 - 10:41:23 8259
Hawthorne 10:35:23 -36.8 Dark Up 19.6 254.8 Really Low 10:29:09 - 10:41:36 8251
Lee Vining 10:35:24 -37.4 Dark Up 20.1 254.6 Low 10:29:10 - 10:41:37 8199
Tonopah 10:35:21 -36.1 Dark Up 18.7 255.9 Really Low 10:29:07 - 10:41:34 8177
Bishop 10:35:22 -37.2 Dark Up 19.7 255.3 Really Low 10:29:09 - 10:41:36 8122
Beatty 10:35:20 -36.3 Dark Up 18.6 256.6 Really Low 10:29:06 - 10:41:33 8046
Lone Pine 10:35:21 -37.4 Dark Up 19.7 255.8 Really Low 10:29:08 - 10:41:35 8035
Indian Springs 10:35:18 -35.8 Dark Up 17.8 257.4 Really Low 10:29:05 - 10:41:32 7993
CPSLO 10:35:27 -39.9 Dark Up 22.0 254.6 Low 10:29:13 - 10:41:40 7942
Henderson 10:35:17 -35.5 Dark Up 17.4 258.0 Really Low 10:29:03 - 10:41:30 7925
Searchlight/Boulder City 10:35:17 -35.7 Dark Up 17.5 258.2 Really Low 10:29:03 - 10:41:30 7861
Patrick 10:35:16 -35.0 Dark Up 16.6 258.9 Really Low 10:29:02 - 10:41:29 7840
Laughlin/Bullhead City 10:35:16 -35.6 Dark Up 17.2 258.5 Really Low 10:29:03 - 10:41:30 7824
Kingman/Dolan Springs 10:35:16 -35.2 Dark Up 16.8 258.8 Really Low 10:29:02 - 10:41:29 7819
DCO 10:35:14 -34.6 Dark Up 16.1 259.4 Really Low 10:29:01 - 10:41:28 7797
Mohave Valley 10:35:16 -35.7 Dark Up 17.3 258.6 Really Low 10:29:03 - 10:41:30 7794
Wildwood 10:35:21 -39.0 Dark Up 20.7 256.4 Low 10:29:08 - 10:41:35 7774
Lake Havasu City 10:35:16 -35.7 Dark Up 17.2 258.9 Really Low 10:29:02 - 10:41:29 7747
Parker 10:35:16 -35.9 Dark Up 17.2 259.0 Really Low 10:29:02 - 10:41:29 7708
Idyllwild 10:35:19 -37.8 Dark Up 19.3 257.7 Really Low 10:29:05 - 10:41:32 7702
Blythe 10:35:16 -36.3 Dark Up 17.6 259.0 Really Low 10:29:03 - 10:41:30 7655
Calipatria 10:35:17 -37.2 Dark Up 18.4 258.6 Really Low 10:29:03 - 10:41:30 7617
Yuma 10:35:16 -36.7 Dark Up 17.8 259.2 Really Low 10:29:02 - 10:41:29 7555

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 10:40UT)
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 2017/12/05 18:57:58 UT

Marc W. Buie, Southwest Research Institute

RECON