RECON: TNO occultation with 06QG181

Event between 06QG181 and star UC4-590-017137 with event index number of 302120

Geocentric closest approach at 2019/11/22 09:28:11 UTC

J2000 position of star is 05:17:02.5 +27:59:13
Equinox of date position of star is 05:18:13.5 +28:00:22
Stellar brightness R=13.1, use SENSEUP=32
Star is 102 degrees from the moon. Moon is 23% illuminated.
TNO apparent brightness V=24.2

[RECON map]
TNO is 32.7 AU from the Sun and 31.8 AU from the Earth.
The TNO is moving 23.1 km/sec on the sky relative to the star, or, 3.6 arcsec/hr.
The 1-sigma error in the time of the event is 258 seconds.
The 1-sigma cross-track error in the shadow position is 1571 km.
The sky-plane scale is 23033.8 km/arcsec.

The TNO has an absolute magnitude Hv=9.0
Diameter=94.6 km assuming a 5% albedo -- 4.1 sec chord
Diameter=38.6 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 06QG181, (2019/11/22 09:28UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:03.9 +16:32:52  0.8 14.89 114
Alnath         05:27:33.1 +28:37:21  1.6  2.13 100
PPM 094294     05:22:14.4 +27:58:32  6.3  0.87 101
PPM 094248     05:19:30.9 +28:47:58  7.4  0.84 102
PPM 094223     05:17:39.4 +27:52:23  9.7  0.19 102
06QG181        05:18:17.6 +28:00:26 13.1       102
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 3.5 sigma about the mid-time.
The median site spacing is 25.6 km RECON observability=1.0 and success probability=22.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 09:27:57 -53.7 Dark Down 67.8 190.4 Up 09:12:57 - 09:42:57 2816
Summerland 09:27:58 -53.9 Dark Down 67.9 189.6 Up 09:12:58 - 09:42:58 2811
Penticton 09:27:58 -54.0 Dark Down 68.2 190.2 Up 09:12:58 - 09:42:58 2778
Okanagan Falls 09:27:58 -54.2 Dark Down 68.4 190.2 Up 09:12:58 - 09:42:58 2758
Oliver 09:27:57 -54.3 Dark Down 68.6 190.3 Up 09:12:57 - 09:42:57 2742
Anarchist Mountain Observatory 09:27:57 -54.3 Dark Down 68.7 190.9 Up 09:12:57 - 09:42:57 2724
Oroville 09:27:57 -54.4 Dark Down 68.8 190.7 Up 09:12:57 - 09:42:57 2716
Tonasket 09:27:57 -54.6 Dark Down 69.0 190.8 Up 09:12:57 - 09:42:57 2692
Okanogan 09:27:57 -54.9 Dark Down 69.4 190.6 Up 09:12:57 - 09:42:57 2657
Brewster 09:27:58 -55.2 Dark Down 69.7 190.3 Up 09:12:58 - 09:42:58 2628
Manson/Chelan 09:27:59 -55.5 Dark Down 69.9 189.4 Up 09:12:59 - 09:42:59 2606
Entiat 09:27:59 -55.7 Dark Down 70.1 189.4 Up 09:12:59 - 09:42:59 2583
Wenatchee 09:27:59 -55.9 Dark Down 70.4 189.2 Up 09:12:59 - 09:42:59 2556
Ellensburg 09:28:00 -56.3 Dark Down 70.8 188.8 Up 09:13:00 - 09:43:00 2512
Yakima 09:28:00 -56.6 Dark Down 71.2 189.0 Up 09:13:00 - 09:43:00 2469
Toppenish/White Swan 09:27:59 -56.7 Dark Down 71.4 189.5 Up 09:12:59 - 09:42:59 2447
Pasco 09:27:55 -56.1 Dark Down 71.4 193.0 Up 09:12:55 - 09:42:55 2436
PNWRO 09:27:54 -56.2 Dark Down 71.6 193.8 Up 09:12:54 - 09:42:54 2410
George/Umatilla 09:27:56 -56.4 Dark Down 71.7 192.7 Up 09:12:56 - 09:42:56 2400
Goldendale 09:28:01 -57.3 Dark Down 72.0 188.6 Up 09:13:01 - 09:43:01 2388
The Dalles 09:28:02 -57.6 Dark Down 72.3 187.7 Up 09:13:02 - 09:43:02 2364
Maupin 09:28:02 -57.8 Dark Down 72.7 188.2 Up 09:13:02 - 09:43:02 2320
Madras/Culver 09:28:02 -58.2 Dark Down 73.2 188.3 Up 09:13:02 - 09:43:02 2261
Sisters 09:28:03 -58.7 Dark Down 73.6 187.1 Up 09:13:03 - 09:43:03 2226
Redmond 09:28:02 -58.5 Dark Down 73.6 188.3 Up 09:13:02 - 09:43:02 2223
Bend 09:28:02 -58.7 Dark Down 73.8 188.0 Up 09:13:02 - 09:43:02 2200
Oregon Observatory 09:28:03 -58.9 Dark Down 74.0 187.7 Up 09:13:03 - 09:43:03 2182
La Pine/Gilchrist 09:28:03 -59.1 Dark Down 74.2 187.6 Up 09:13:03 - 09:43:03 2160
North Lake 09:28:01 -59.0 Dark Down 74.6 189.7 Up 09:13:01 - 09:43:01 2114
Paisley 09:27:59 -59.2 Dark Down 75.1 191.3 Up 09:12:59 - 09:42:59 2055
Chiloquin 09:28:04 -60.0 Dark Down 75.3 186.9 Up 09:13:04 - 09:43:04 2040
Klamath Falls 09:28:04 -60.2 Dark Down 75.7 187.4 Up 09:13:04 - 09:43:04 2004
Lakeview 09:27:59 -59.4 Dark Down 75.5 192.3 Up 09:12:59 - 09:42:59 2000
Tulelake 09:28:03 -60.2 Dark Down 75.9 188.6 Up 09:13:03 - 09:43:03 1975
Cedarville 09:27:58 -59.7 Dark Down 76.1 193.5 Up 09:12:58 - 09:42:58 1930
Fall River/Burney 09:28:02 -60.7 Dark Down 76.8 189.4 Up 09:13:02 - 09:43:02 1876
Niwot 09:27:04 -50.4 Dark Up 70.6 237.1 Up 09:12:04 - 09:42:04 1870
Susanville 09:28:00 -60.6 Dark Down 77.3 192.8 Up 09:13:00 - 09:43:00 1809
Greenville 09:28:01 -61.0 Dark Down 77.6 191.9 Up 09:13:01 - 09:43:01 1779
Gimple 09:28:01 -60.9 Dark Down 77.6 192.3 Up 09:13:01 - 09:43:01 1778
Quincy 09:28:01 -61.1 Dark Down 77.8 192.1 Up 09:13:01 - 09:43:01 1757
Portola 09:27:59 -60.9 Dark Down 77.9 194.2 Up 09:12:59 - 09:42:59 1743
Reno 09:27:57 -60.6 Dark Down 78.0 197.2 Up 09:12:57 - 09:42:57 1715
Carson City 09:27:56 -60.8 Dark Down 78.3 197.8 Up 09:12:56 - 09:42:56 1676
Yerington 09:27:54 -60.5 Dark Down 78.3 200.7 Up 09:12:54 - 09:42:54 1656
Gardnerville 09:27:56 -60.9 Dark Down 78.5 198.3 Up 09:12:56 - 09:42:56 1650
Hawthorne 09:27:52 -60.4 Dark Down 78.6 203.7 Up 09:12:52 - 09:42:52 1606
Tonopah 09:27:47 -59.7 Dark Down 78.5 210.5 Up 09:12:47 - 09:42:47 1559
Lee Vining 09:27:54 -61.0 Dark Down 79.3 202.8 Up 09:12:54 - 09:42:54 1544
Bishop 09:27:51 -60.8 Dark Down 79.6 207.3 Up 09:12:51 - 09:42:51 1480
Beatty 09:27:45 -59.9 Dark Down 79.3 215.5 Up 09:12:45 - 09:42:45 1435
Indian Springs 09:27:40 -59.3 Dark Down 79.0 220.7 Up 09:12:40 - 09:42:40 1403
Lone Pine 09:27:50 -61.0 Dark Down 80.1 210.9 Up 09:12:50 - 09:42:50 1397
Henderson 09:27:38 -59.0 Dark Down 79.1 225.1 Up 09:12:38 - 09:42:38 1348
Searchlight/Boulder City 09:27:37 -59.1 Dark Down 79.4 227.5 Up 09:12:37 - 09:42:37 1285
Patrick 09:27:33 -58.4 Dark Down 78.8 231.1 Up 09:12:33 - 09:42:33 1285
Kingman/Dolan Springs 09:27:34 -58.6 Dark Down 79.1 231.4 Up 09:12:34 - 09:42:34 1260
DCO 09:27:30 -57.9 Dark Down 78.5 234.5 Up 09:12:30 - 09:42:30 1256
Laughlin/Bullhead City 09:27:36 -59.0 Dark Down 79.4 229.8 Up 09:12:36 - 09:42:36 1254
CPSLO 09:27:59 -63.4 Dark Down 82.2 201.0 Up 09:12:59 - 09:42:59 1250
Mohave Valley 09:27:36 -59.1 Dark Down 79.6 231.0 Up 09:12:36 - 09:42:36 1224
Lake Havasu City 09:27:35 -59.0 Dark Down 79.7 233.5 Up 09:12:35 - 09:42:35 1182
Parker 09:27:34 -59.1 Dark Down 79.9 235.2 Up 09:12:34 - 09:42:34 1143
Wildwood 09:27:51 -62.4 Dark Down 82.5 217.4 Up 09:12:51 - 09:42:51 1120
Idyllwild 09:27:44 -61.1 Dark Down 81.7 228.3 Up 09:12:44 - 09:42:44 1087
Blythe 09:27:35 -59.5 Dark Down 80.4 236.7 Up 09:12:35 - 09:42:35 1084
Calipatria 09:27:39 -60.4 Dark Down 81.3 236.1 Up 09:12:39 - 09:42:39 1025
Yuma 09:27:35 -59.8 Dark Down 80.9 241.4 Up 09:12:35 - 09:42:35 981

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 06QG181, (2019/11/22 09:28UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 14.89 114
Alnath         05:26:17.5 +28:36:23  1.6  2.13 100
PPM 094294     05:20:59.3 +27:57:25  6.3  0.87 101
PPM 094248     05:18:15.4 +28:46:47  7.4  0.84 102
PPM 094223     05:16:24.4 +27:51:08  9.7  0.19 102
06QG181        05:17:02.5 +27:59:13 13.1       102
Positions are for J2000

Event circumstances last updated at 2018/10/25 20:34:17 UT

Marc W. Buie, Southwest Research Institute

RECON