RECON: TNO occultation with 06QP180

Event between 06QP180 and star GA1040:00200245 with event index number of 174798

Geocentric closest approach at 2019/01/30 05:06:59 UTC

J2000 position of star is 02:05:45.8 +14:38:36
Equinox of date position of star is 02:06:47.0 +14:43:57
Stellar brightness G=15.6, use SENSEUP=128
Star is 146 degrees from the moon. Moon is 27% illuminated.
TNO apparent brightness V=24.3

[RECON map]
TNO is 26.6 AU from the Sun and 26.7 AU from the Earth.
The TNO is moving 8.1 km/sec on the sky relative to the star, or, 1.5 arcsec/hr.
The 1-sigma error in the time of the event is 252 seconds.
The 1-sigma cross-track error in the shadow position is 1506 km.
The sky-plane scale is 19331.6 km/arcsec.

The TNO has an absolute magnitude Hv=9.8
Diameter=66.1 km assuming a 5% albedo -- 8.2 sec chord
Diameter=27.0 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 06QP180, (2019/01/30 05:07UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:01.1 +16:32:46  0.8 36.16 177
6Bet Ari       01:55:41.9 +20:54:02  2.6  6.71 144
19 Ari         02:14:05.9 +15:22:06  5.7  1.87 148
PPM 117935     02:06:26.3 +15:37:42  8.4  0.90 146
PPM 117921     02:05:20.4 +14:39:33  9.9  0.36 146
PPM 117939     02:06:43.5 +14:39:27 10.1  0.08 146
06QP180        02:06:47.9 +14:44:02 15.6       146
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 3.6 sigma about the mid-time.
The median site spacing is 22.4 km RECON observability=1.0 and success probability=13.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 05:15:29 -42.5 Dark Down 32.1 253.7 Up 05:00:29 - 05:30:29 -1929
Summerland 05:15:28 -42.3 Dark Down 32.3 253.4 Up 05:00:28 - 05:30:28 -1937
Penticton 05:15:31 -42.6 Dark Down 32.3 253.8 Up 05:00:31 - 05:30:31 -1964
Okanagan Falls 05:15:32 -42.7 Dark Down 32.3 253.9 Up 05:00:32 - 05:30:32 -1982
Oliver 05:15:33 -42.7 Dark Down 32.4 254.0 Up 05:00:33 - 05:30:33 -1997
Anarchist Mountain Observatory 05:15:36 -42.9 Dark Down 32.3 254.3 Up 05:00:36 - 05:30:36 -2011
Oroville 05:15:36 -42.9 Dark Down 32.4 254.3 Up 05:00:36 - 05:30:36 -2019
Tonasket 05:15:37 -43.0 Dark Down 32.4 254.4 Up 05:00:37 - 05:30:37 -2041
Okanogan 05:15:39 -43.1 Dark Down 32.6 254.5 Up 05:00:39 - 05:30:39 -2074
Brewster 05:15:39 -43.1 Dark Down 32.8 254.5 Up 05:00:39 - 05:30:39 -2101
Manson/Chelan 05:15:39 -42.9 Dark Down 33.1 254.3 Up 05:00:39 - 05:30:39 -2124
Entiat 05:15:39 -43.0 Dark Down 33.2 254.4 Up 05:00:39 - 05:30:39 -2145
Wenatchee 05:15:41 -43.0 Dark Down 33.3 254.5 Up 05:00:41 - 05:30:41 -2170
Ellensburg 05:15:42 -43.1 Dark Down 33.6 254.5 Up 05:00:42 - 05:30:42 -2211
Yakima 05:15:45 -43.2 Dark Down 33.7 254.8 Up 05:00:45 - 05:30:45 -2250
Toppenish/White Swan 05:15:47 -43.4 Dark Down 33.6 255.1 Up 05:00:47 - 05:30:47 -2269
Pasco 05:15:56 -44.3 Dark Down 32.8 256.2 Up 05:00:56 - 05:30:56 -2270
PNWRO 05:15:59 -44.5 Dark Down 32.7 256.6 Up 05:00:59 - 05:30:59 -2291
George/Umatilla 05:15:57 -44.3 Dark Down 33.0 256.3 Up 05:00:57 - 05:30:57 -2304
Goldendale 05:15:49 -43.4 Dark Down 34.0 255.1 Up 05:00:49 - 05:30:49 -2326
The Dalles 05:15:47 -43.2 Dark Down 34.4 254.9 Up 05:00:47 - 05:30:47 -2351
Maupin 05:15:51 -43.4 Dark Down 34.4 255.3 Up 05:00:51 - 05:30:51 -2390
Madras/Culver 05:15:54 -43.6 Dark Down 34.5 255.6 Up 05:00:54 - 05:30:54 -2444
Redmond 05:15:56 -43.7 Dark Down 34.7 255.8 Up 05:00:56 - 05:30:56 -2479
Sisters 05:15:53 -43.4 Dark Down 34.9 255.5 Up 05:00:53 - 05:30:53 -2480
Bend 05:15:57 -43.7 Dark Down 34.8 255.9 Up 05:00:57 - 05:30:57 -2502
Oregon Observatory 05:15:57 -43.6 Dark Down 34.9 255.9 Up 05:00:57 - 05:30:57 -2520
La Pine/Gilchrist 05:15:57 -43.7 Dark Down 35.0 256.0 Up 05:00:57 - 05:30:57 -2540
North Lake 05:16:04 -44.2 Dark Down 34.7 256.8 Up 05:01:04 - 05:31:04 -2578
Paisley 05:16:09 -44.7 Dark Down 34.5 257.5 Up 05:01:09 - 05:31:09 -2629
Chiloquin 05:16:02 -43.8 Dark Down 35.5 256.5 Up 05:01:02 - 05:31:02 -2653
Lakeview 05:16:13 -45.0 Dark Down 34.5 258.0 Up 05:01:13 - 05:31:13 -2678
Klamath Falls 05:16:04 -44.0 Dark Down 35.5 256.8 Up 05:01:04 - 05:31:04 -2687
Niwot 05:17:43 -56.4 Dark Down 23.1 270.0 Low 05:02:43 - 05:32:43 -2691
Tulelake 05:16:08 -44.3 Dark Down 35.4 257.2 Up 05:01:08 - 05:31:08 -2711
Cedarville 05:16:18 -45.4 Dark Down 34.5 258.5 Up 05:01:18 - 05:31:18 -2742
Fall River/Burney 05:16:13 -44.6 Dark Down 35.5 257.9 Up 05:01:13 - 05:31:13 -2801
Susanville 05:16:22 -45.4 Dark Down 35.0 259.0 Up 05:01:22 - 05:31:22 -2858
Gimple 05:16:22 -45.3 Dark Down 35.3 259.0 Up 05:01:22 - 05:31:22 -2888
Greenville 05:16:21 -45.2 Dark Down 35.3 258.9 Up 05:01:21 - 05:31:21 -2889
Quincy 05:16:22 -45.3 Dark Down 35.4 259.1 Up 05:01:22 - 05:31:22 -2909
Portola 05:16:26 -45.7 Dark Down 35.0 259.5 Up 05:01:26 - 05:31:26 -2917
Reno 05:16:32 -46.3 Dark Down 34.5 260.2 Up 05:01:32 - 05:31:32 -2938
Carson City 05:16:34 -46.4 Dark Down 34.6 260.5 Up 05:01:34 - 05:31:34 -2974
Yerington 05:16:39 -46.9 Dark Down 34.1 261.1 Up 05:01:39 - 05:31:39 -2987
Gardnerville 05:16:35 -46.5 Dark Down 34.6 260.7 Up 05:01:35 - 05:31:35 -2999
Hawthorne 05:16:44 -47.5 Dark Down 33.7 261.8 Up 05:01:44 - 05:31:44 -3029
Tonopah 05:16:55 -48.7 Dark Down 32.7 263.1 Up 05:01:55 - 05:31:55 -3061
Lee Vining 05:16:45 -47.3 Dark Down 34.2 261.8 Up 05:01:45 - 05:31:45 -3092
Bishop 05:16:52 -48.0 Dark Down 33.7 262.7 Up 05:01:52 - 05:31:52 -3146
Beatty 05:17:04 -49.4 Dark Down 32.4 264.1 Up 05:02:04 - 05:32:04 -3174
Indian Springs 05:17:13 -50.4 Dark Down 31.5 265.1 Up 05:02:13 - 05:32:13 -3195
Lone Pine 05:16:59 -48.5 Dark Down 33.5 263.5 Up 05:01:59 - 05:31:59 -3220
Henderson 05:17:20 -51.1 Dark Down 31.0 265.8 Up 05:02:20 - 05:32:20 -3241
Patrick 05:17:30 -52.2 Dark Down 30.1 266.9 Up 05:02:30 - 05:32:30 -3292
Searchlight/Boulder City 05:17:23 -51.3 Dark Down 31.0 266.2 Up 05:02:23 - 05:32:23 -3300
DCO 05:17:35 -52.9 Dark Down 29.5 267.5 Low 05:02:35 - 05:32:35 -3314
Kingman/Dolan Springs 05:17:30 -52.1 Dark Down 30.3 266.9 Up 05:02:30 - 05:32:30 -3317
Laughlin/Bullhead City 05:17:27 -51.7 Dark Down 30.7 266.6 Up 05:02:27 - 05:32:27 -3326
Mohave Valley 05:17:28 -51.8 Dark Down 30.7 266.8 Up 05:02:28 - 05:32:28 -3354
CPSLO 05:16:48 -46.7 Dark Down 35.8 262.6 Up 05:01:48 - 05:31:48 -3383
Lake Havasu City 05:17:31 -52.1 Dark Down 30.5 267.2 Up 05:02:31 - 05:32:31 -3393
Parker 05:17:33 -52.2 Dark Down 30.5 267.4 Up 05:02:33 - 05:32:33 -3429
Wildwood 05:17:07 -48.7 Dark Down 34.2 264.8 Up 05:02:07 - 05:32:07 -3487
Blythe 05:17:35 -52.1 Dark Down 30.8 267.6 Up 05:02:35 - 05:32:35 -3487
Idyllwild 05:17:20 -50.4 Dark Down 32.6 266.2 Up 05:02:20 - 05:32:20 -3502
Calipatria 05:17:31 -51.5 Dark Down 31.6 267.3 Up 05:02:31 - 05:32:31 -3551
Yuma 05:17:38 -52.4 Dark Down 30.8 268.1 Up 05:02:38 - 05:32:38 -3585

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, (2019/01/30 05:07UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 36.16 177
6Bet Ari       01:54:38.5 +20:48:27  2.6  6.71 144
19 Ari         02:13:03.4 +15:16:47  5.7  1.87 148
PPM 117935     02:05:23.9 +15:32:16  8.4  0.90 146
PPM 117921     02:04:18.2 +14:34:06  9.9  0.36 146
PPM 117939     02:05:41.4 +14:34:01 10.1  0.08 146
06QP180        02:05:45.8 +14:38:36 15.6       146
Positions are for J2000

Event circumstances last updated at 2018/10/15 20:32:48 UT

Marc W. Buie, Southwest Research Institute

RECON