RECON: TNO occultation with 145453

Event between (145453) 05RR43 and star GA1020:00511051 with event index number of 216142

Geocentric closest approach at 2019/11/01 08:37:50 UTC

J2000 position of star is 04:38:21.1 +12:56:40
Equinox of date position of star is 04:39:24.3 +12:58:50
Stellar brightness G=16.3, use SENSEUP=128
Star is 155 degrees from the moon. Moon is 21% illuminated.
TNO apparent brightness V=20.0

[RECON map]
TNO is 39.8 AU from the Sun and 38.9 AU from the Earth.
The TNO is moving 21.5 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 112 seconds.
The 1-sigma cross-track error in the shadow position is 1985 km.
The sky-plane scale is 28238.4 km/arcsec.

The TNO has an absolute magnitude Hv=4.0
Diameter=955.0 km assuming a 5% albedo -- 44.4 sec chord
Diameter=389.9 km assuming a 30% albedo -- 18.1 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 145453, (2019/11/01 08:38UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:03.7 +16:32:51  0.8  3.61 156
Bellatrix      05:26:11.8 +06:21:58  1.6 13.28 160
90 Tau         04:39:16.1 +12:32:57  4.3  0.44 155
PPM 120109     04:40:15.3 +13:02:26  7.5  0.20 155
145453         04:39:27.8 +12:58:57 16.3       155
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 20.4 km RECON observability=1.0 and success probability=16.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 08:38:28 -52.7 Dark Down 49.8 149.9 Up 08:28:40 - 08:48:16 -1643
Kelowna 08:38:26 -52.6 Dark Down 49.9 150.5 Up 08:28:38 - 08:48:14 -1645
Penticton 08:38:28 -53.0 Dark Down 50.2 150.0 Up 08:28:40 - 08:48:16 -1672
Okanagan Falls 08:38:28 -53.2 Dark Down 50.3 149.9 Up 08:28:40 - 08:48:16 -1688
Oliver 08:38:29 -53.3 Dark Down 50.5 149.8 Up 08:28:41 - 08:48:17 -1702
Anarchist Mountain Observatory 08:38:28 -53.4 Dark Down 50.7 150.0 Up 08:28:40 - 08:48:16 -1719
Oroville 08:38:29 -53.5 Dark Down 50.7 149.8 Up 08:28:41 - 08:48:17 -1724
Tonasket 08:38:29 -53.7 Dark Down 50.9 149.7 Up 08:28:41 - 08:48:17 -1744
Okanogan 08:38:30 -54.1 Dark Down 51.2 149.3 Up 08:28:42 - 08:48:18 -1770
Brewster 08:38:31 -54.4 Dark Down 51.3 148.8 Up 08:28:43 - 08:48:19 -1790
Manson/Chelan 08:38:33 -54.6 Dark Down 51.4 148.1 Up 08:28:45 - 08:48:21 -1802
Entiat 08:38:33 -54.9 Dark Down 51.5 147.9 Up 08:28:45 - 08:48:21 -1819
Wenatchee 08:38:34 -55.1 Dark Down 51.7 147.6 Up 08:28:46 - 08:48:22 -1840
Ellensburg 08:38:36 -55.6 Dark Down 52.0 147.0 Up 08:28:48 - 08:48:24 -1872
Yakima 08:38:37 -55.9 Dark Down 52.3 146.7 Up 08:28:49 - 08:48:25 -1906
Toppenish/White Swan 08:38:36 -56.1 Dark Down 52.6 146.8 Up 08:28:48 - 08:48:24 -1928
Pasco 08:38:32 -55.8 Dark Down 53.1 148.6 Up 08:28:44 - 08:48:20 -1959
Goldendale 08:38:38 -56.7 Dark Down 52.9 145.8 Up 08:28:50 - 08:48:26 -1969
The Dalles 08:38:40 -57.0 Dark Down 52.9 145.1 Up 08:28:52 - 08:48:28 -1982
PNWRO 08:38:32 -56.0 Dark Down 53.4 148.7 Up 08:28:44 - 08:48:20 -1984
George/Umatilla 08:38:34 -56.2 Dark Down 53.3 148.0 Up 08:28:46 - 08:48:22 -1985
Maupin 08:38:40 -57.4 Dark Down 53.3 144.9 Up 08:28:52 - 08:48:28 -2021
Madras/Culver 08:38:42 -57.9 Dark Down 53.7 144.4 Up 08:28:54 - 08:48:30 -2068
Sisters 08:38:44 -58.3 Dark Down 53.8 143.5 Up 08:28:56 - 08:48:32 -2090
Redmond 08:38:43 -58.2 Dark Down 54.0 144.1 Up 08:28:55 - 08:48:31 -2099
Bend 08:38:44 -58.5 Dark Down 54.1 143.7 Up 08:28:56 - 08:48:32 -2116
Oregon Observatory 08:38:44 -58.7 Dark Down 54.2 143.3 Up 08:28:56 - 08:48:32 -2129
La Pine/Gilchrist 08:38:45 -58.9 Dark Down 54.3 143.1 Up 08:28:57 - 08:48:33 -2146
North Lake 08:38:44 -59.1 Dark Down 54.9 143.6 Up 08:28:56 - 08:48:32 -2196
Chiloquin 08:38:48 -60.0 Dark Down 55.1 141.6 Up 08:29:00 - 08:48:36 -2240
Paisley 08:38:44 -59.5 Dark Down 55.5 143.7 Up 08:28:56 - 08:48:32 -2252
Klamath Falls 08:38:48 -60.3 Dark Down 55.4 141.4 Up 08:29:00 - 08:48:36 -2273
Lakeview 08:38:44 -59.9 Dark Down 56.0 143.6 Up 08:28:56 - 08:48:32 -2301
Tulelake 08:38:48 -60.4 Dark Down 55.7 141.6 Up 08:29:00 - 08:48:36 -2303
Cedarville 08:38:44 -60.4 Dark Down 56.6 143.3 Up 08:28:56 - 08:48:32 -2365
Fall River/Burney 08:38:49 -61.2 Dark Down 56.5 140.9 Up 08:29:01 - 08:48:37 -2387
Susanville 08:38:48 -61.5 Dark Down 57.3 141.5 Up 08:29:00 - 08:48:36 -2459
Greenville 08:38:50 -61.9 Dark Down 57.4 140.7 Up 08:29:02 - 08:48:38 -2479
Gimple 08:38:49 -61.9 Dark Down 57.4 140.9 Up 08:29:01 - 08:48:37 -2481
Quincy 08:38:50 -62.1 Dark Down 57.6 140.6 Up 08:29:02 - 08:48:38 -2498
Portola 08:38:48 -62.0 Dark Down 57.9 141.2 Up 08:29:00 - 08:48:36 -2519
Reno 08:38:46 -62.0 Dark Down 58.4 141.9 Up 08:28:58 - 08:48:34 -2555
Carson City 08:38:47 -62.3 Dark Down 58.7 141.6 Up 08:28:59 - 08:48:35 -2590
Gardnerville 08:38:47 -62.5 Dark Down 58.9 141.4 Up 08:28:59 - 08:48:35 -2614
Yerington 08:38:45 -62.2 Dark Down 59.1 142.5 Up 08:28:57 - 08:48:33 -2619
Hawthorne 08:38:44 -62.4 Dark Down 59.8 142.9 Up 08:28:56 - 08:48:32 -2673
Lee Vining 08:38:47 -63.1 Dark Down 60.0 141.5 Up 08:28:59 - 08:48:35 -2718
Niwot 08:37:51 -54.3 Dark Down 62.5 169.5 Up 08:28:03 - 08:47:39 -2737
Tonopah 08:38:39 -62.1 Dark Down 60.8 144.8 Up 08:28:51 - 08:48:27 -2743
Bishop 08:38:44 -63.2 Dark Down 60.8 142.0 Up 08:28:56 - 08:48:32 -2789
Beatty 08:38:40 -62.8 Dark Down 61.9 144.4 Up 08:28:52 - 08:48:28 -2863
Lone Pine 08:38:44 -63.7 Dark Down 61.6 141.8 Up 08:28:56 - 08:48:32 -2868
Indian Springs 08:38:36 -62.6 Dark Down 62.7 146.0 Up 08:28:48 - 08:48:24 -2914
CPSLO 08:38:57 -65.9 Dark Down 61.2 135.8 Up 08:29:09 - 08:48:45 -2946
Henderson 08:38:34 -62.6 Dark Down 63.4 146.7 Up 08:28:46 - 08:48:22 -2979
Searchlight/Boulder City 08:38:34 -63.0 Dark Down 64.0 146.2 Up 08:28:46 - 08:48:22 -3036
Patrick 08:38:30 -62.4 Dark Down 64.5 148.2 Up 08:28:42 - 08:48:18 -3060
Laughlin/Bullhead City 08:38:33 -63.0 Dark Down 64.4 146.5 Up 08:28:45 - 08:48:21 -3072
Kingman/Dolan Springs 08:38:32 -62.7 Dark Down 64.6 147.6 Up 08:28:44 - 08:48:20 -3079
Mohave Valley 08:38:34 -63.2 Dark Down 64.6 146.3 Up 08:28:46 - 08:48:22 -3099
DCO 08:38:28 -62.2 Dark Down 65.0 149.3 Up 08:28:40 - 08:48:16 -3103
Wildwood 08:38:51 -66.0 Dark Down 63.2 137.7 Up 08:29:03 - 08:48:39 -3104
Lake Havasu City 08:38:33 -63.3 Dark Down 65.0 146.3 Up 08:28:45 - 08:48:21 -3143
Idyllwild 08:38:44 -65.2 Dark Down 64.5 140.7 Up 08:28:56 - 08:48:32 -3175
Parker 08:38:33 -63.5 Dark Down 65.3 145.9 Up 08:28:45 - 08:48:21 -3179
Blythe 08:38:36 -64.1 Dark Down 65.6 144.7 Up 08:28:48 - 08:48:24 -3226
Calipatria 08:38:40 -65.0 Dark Down 65.6 142.2 Up 08:28:52 - 08:48:28 -3258
Yuma 08:38:37 -64.7 Dark Down 66.4 143.4 Up 08:28:49 - 08:48:25 -3318

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 145453, (2019/11/01 08:38UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  3.61 156
Bellatrix      05:25:07.8 +06:20:58  1.6 13.28 160
90 Tau         04:38:09.6 +12:30:39  4.3  0.44 155
PPM 120109     04:39:08.6 +13:00:10  7.5  0.20 155
145453         04:38:21.1 +12:56:40 16.3       155
Positions are for J2000

Event circumstances last updated at 2018/10/24 22:03:26 UT

Marc W. Buie, Southwest Research Institute

RECON