RECON: TNO occultation with 06QP180

Event between 06QP180 and star GA1060:00253317 with event index number of 286477

Geocentric closest approach at 2020/09/16 11:59:28 UTC

J2000 position of star is 02:34:51.0 +16:46:44
Equinox of date position of star is 02:35:54.5 +16:51:42
Stellar brightness G=15.3, use SENSEUP=128
Star is 119 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=24.4

[RECON map]
TNO is 28.0 AU from the Sun and 27.3 AU from the Earth.
The TNO is moving 15.4 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 138 seconds.
The 1-sigma cross-track error in the shadow position is 1161 km.
The sky-plane scale is 19774.7 km/arcsec.

The TNO has an absolute magnitude Hv=9.8
Diameter=66.1 km assuming a 5% albedo -- 4.3 sec chord
Diameter=27.0 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 06QP180, (2020/09/16 11:59UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:06.7 +16:32:58  0.8 28.97  91
Hamal          02:08:20.7 +23:33:34  2.0  9.32 121
27 Ari         02:32:03.6 +17:47:40  6.2  1.32 119
PPM 118362     02:36:49.7 +16:42:09  8.9  0.26 119
06QP180        02:35:59.9 +16:52:07 15.3       118
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 23.2 km RECON observability=1.0 and success probability=43.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 11:57:08 -16.4 AT Down 54.3 208.1 Up 11:45:08 - 12:09:08 535
Kelowna 11:57:06 -16.2 AT Down 54.1 208.7 Up 11:45:06 - 12:09:06 534
Penticton 11:57:07 -16.4 AT Down 54.5 208.6 Up 11:45:07 - 12:09:07 501
Okanagan Falls 11:57:07 -16.5 AT Down 54.7 208.7 Up 11:45:07 - 12:09:07 484
Oliver 11:57:07 -16.6 AT Down 54.8 208.9 Up 11:45:07 - 12:09:07 468
Anarchist Mountain Observatory 11:57:06 -16.5 AT Down 54.9 209.3 Up 11:45:06 - 12:09:06 448
Oroville 11:57:07 -16.6 AT Down 55.0 209.2 Up 11:45:07 - 12:09:07 442
Tonasket 11:57:07 -16.7 AT Down 55.2 209.4 Up 11:45:07 - 12:09:07 420
Okanogan 11:57:08 -16.9 AT Down 55.5 209.4 Up 11:45:08 - 12:09:08 390
Brewster 11:57:08 -17.1 AT Down 55.8 209.3 Up 11:45:08 - 12:09:08 366
Manson/Chelan 11:57:10 -17.4 AT Down 56.1 208.9 Up 11:45:10 - 12:09:10 352
Entiat 11:57:11 -17.6 AT Down 56.3 208.9 Up 11:45:11 - 12:09:11 332
Wenatchee 11:57:11 -17.7 AT Down 56.6 208.9 Up 11:45:11 - 12:09:11 308
Ellensburg 11:57:12 -18.0 Dark Down 57.0 208.9 Up 11:45:12 - 12:09:12 272
Yakima 11:57:13 -18.2 Dark Down 57.4 209.2 Up 11:45:13 - 12:09:13 232
Toppenish/White Swan 11:57:12 -18.2 Dark Down 57.5 209.6 Up 11:45:12 - 12:09:12 208
Pasco 11:57:06 -17.5 AT Down 57.2 211.8 Up 11:45:06 - 12:09:06 176
Goldendale 11:57:14 -18.7 Dark Down 58.2 209.3 Up 11:45:14 - 12:09:14 161
PNWRO 11:57:05 -17.4 AT Down 57.3 212.3 Up 11:45:05 - 12:09:05 148
George/Umatilla 11:57:07 -17.7 AT Down 57.6 211.7 Up 11:45:07 - 12:09:07 147
The Dalles 11:57:16 -19.0 Dark Down 58.5 208.9 Up 11:45:16 - 12:09:16 145
Maupin 11:57:16 -19.1 Dark Down 58.8 209.4 Up 11:45:16 - 12:09:16 102
Madras/Culver 11:57:16 -19.4 Dark Down 59.3 209.8 Up 11:45:16 - 12:09:16 48
Sisters 11:57:19 -19.8 Dark Down 59.7 209.3 Up 11:45:19 - 12:09:19 23
Redmond 11:57:17 -19.5 Dark Down 59.6 210.0 Up 11:45:17 - 12:09:17 14
Bend 11:57:18 -19.7 Dark Down 59.9 210.0 Up 11:45:18 - 12:09:18 -5
Oregon Observatory 11:57:18 -19.9 Dark Down 60.0 209.9 Up 11:45:18 - 12:09:18 -20
La Pine/Gilchrist 11:57:19 -20.0 Dark Down 60.2 210.0 Up 11:45:19 - 12:09:19 -40
North Lake 11:57:16 -19.8 Dark Down 60.4 211.4 Up 11:45:16 - 12:09:16 -94
Chiloquin 11:57:21 -20.7 Dark Down 61.3 210.3 Up 11:45:21 - 12:09:21 -145
Paisley 11:57:15 -19.8 Dark Down 60.7 212.6 Up 11:45:15 - 12:09:15 -155
Klamath Falls 11:57:21 -20.8 Dark Down 61.6 210.8 Up 11:45:21 - 12:09:21 -181
Lakeview 11:57:14 -19.8 Dark Down 61.1 213.4 Up 11:45:14 - 12:09:14 -210
Tulelake 11:57:20 -20.7 Dark Down 61.7 211.6 Up 11:45:20 - 12:09:20 -213
Cedarville 11:57:14 -20.0 Dark Down 61.6 214.4 Up 11:45:14 - 12:09:14 -279
Fall River/Burney 11:57:20 -21.0 Dark Down 62.5 212.7 Up 11:45:20 - 12:09:20 -307
Susanville 11:57:17 -20.7 Dark Down 62.7 214.7 Up 11:45:17 - 12:09:17 -385
Greenville 11:57:18 -21.0 Dark Down 63.0 214.5 Up 11:45:18 - 12:09:18 -407
Gimple 11:57:18 -21.0 Dark Down 63.0 214.6 Up 11:45:18 - 12:09:18 -409
Quincy 11:57:19 -21.1 Dark Down 63.2 214.7 Up 11:45:19 - 12:09:19 -428
Portola 11:57:16 -20.8 Dark Down 63.1 215.7 Up 11:45:16 - 12:09:16 -450
Reno 11:57:13 -20.5 Dark Down 63.0 217.2 Up 11:45:13 - 12:09:13 -489
Carson City 11:57:13 -20.6 Dark Down 63.3 217.7 Up 11:45:13 - 12:09:13 -526
Gardnerville 11:57:13 -20.6 Dark Down 63.5 218.1 Up 11:45:13 - 12:09:13 -552
Yerington 11:57:10 -20.2 Dark Down 63.1 219.1 Up 11:45:10 - 12:09:10 -557
Hawthorne 11:57:08 -20.0 Dark Down 63.2 220.6 Up 11:45:08 - 12:09:08 -615
Niwot 11:56:00 -9.7 NT Up 54.4 238.0 Up 11:44:00 - 12:08:00 -631
SwRI 11:56:01 -9.8 NT Up 54.6 238.0 Up 11:44:01 - 12:08:01 -641
Lee Vining 11:57:11 -20.5 Dark Down 63.9 220.5 Up 11:45:11 - 12:09:11 -665
Tonopah 11:57:01 -19.1 Dark Down 62.8 223.7 Up 11:45:01 - 12:09:01 -687
Bishop 11:57:08 -20.2 Dark Down 64.0 222.6 Up 11:45:08 - 12:09:08 -740
Beatty 11:56:59 -19.1 Dark Down 63.4 226.1 Up 11:44:59 - 12:08:59 -816
Lone Pine 11:57:06 -20.2 Dark Down 64.4 224.3 Up 11:45:06 - 12:09:06 -825
Indian Springs 11:56:53 -18.4 Dark Down 63.0 228.3 Up 11:44:53 - 12:08:53 -868
CPSLO 11:57:21 -22.6 Dark Down 66.7 221.4 Up 11:45:21 - 12:09:21 -914
Henderson 11:56:50 -18.1 Dark Down 62.9 230.2 Up 11:44:50 - 12:08:50 -936
Searchlight/Boulder City 11:56:50 -18.2 Dark Down 63.3 231.2 Up 11:44:50 - 12:08:50 -998
Patrick 11:56:44 -17.4 AT Down 62.6 232.9 Up 11:44:44 - 12:08:44 -1020
Laughlin/Bullhead City 11:56:48 -18.0 AT Down 63.2 232.2 Up 11:44:48 - 12:08:48 -1035
Kingman/Dolan Springs 11:56:45 -17.6 AT Down 62.9 232.9 Up 11:44:45 - 12:08:45 -1041
DCO 11:56:41 -16.9 AT Down 62.4 234.4 Up 11:44:41 - 12:08:41 -1063
Mohave Valley 11:56:48 -18.1 Dark Down 63.4 232.6 Up 11:44:48 - 12:08:48 -1064
Wildwood 11:57:11 -21.4 Dark Down 66.4 227.2 Up 11:45:11 - 12:09:11 -1080
Lake Havasu City 11:56:47 -18.0 AT Down 63.5 233.7 Up 11:44:47 - 12:08:47 -1111
Parker 11:56:48 -18.1 Dark Down 63.7 234.3 Up 11:44:48 - 12:08:48 -1149
Idyllwild 11:57:01 -20.1 Dark Down 65.5 231.1 Up 11:45:01 - 12:09:01 -1152
Blythe 11:56:49 -18.4 Dark Down 64.2 234.7 Up 11:44:49 - 12:08:49 -1200
Calipatria 11:56:54 -19.3 Dark Down 65.1 234.1 Up 11:44:54 - 12:08:54 -1237
Yuma 11:56:50 -18.7 Dark Down 64.7 236.2 Up 11:44:50 - 12:08:50 -1298

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 06QP180, (2020/09/16 11:59UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 28.97  91
Hamal          02:07:10.7 +23:27:42  2.0  9.32 121
27 Ari         02:30:54.4 +17:42:12  6.2  1.32 119
PPM 118362     02:35:40.8 +16:36:47  8.9  0.26 119
06QP180        02:34:51.0 +16:46:44 15.3       119
Positions are for J2000

Event circumstances last updated at 2019/01/29 03:51:14 UT

Marc W. Buie, Southwest Research Institute

RECON