RECON: TNO occultation with 06QG181

Event between 06QG181 and star GA1180:01617230 with event index number of 1195419

Geocentric closest approach at 2023/01/19 02:31:21 UTC

J2000 position of star is 05:36:05.7 +28:44:34
Equinox of date position of star is 05:37:19.6 +28:45:14
Stellar brightness G=14.6, use SENSEUP=128
Star is 175 degrees from the moon. Moon is 11% illuminated.
TNO apparent brightness V=24.5

[RECON map]
TNO is 34.9 AU from the Sun and 34.1 AU from the Earth.
The TNO is moving 20.3 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 682 seconds.
The 1-sigma cross-track error in the shadow position is 3380 km.
The sky-plane scale is 24718.8 km/arcsec.

The TNO has an absolute magnitude Hv=9.0
Diameter=94.6 km assuming a 5% albedo -- 4.7 sec chord
Diameter=38.6 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 06QG181, (2023/01/19 02:31UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:14.7 +16:33:14  0.8 18.47 167
Alnath         05:27:45.1 +28:37:30  1.6  2.15 176
PPM 094619     05:40:46.3 +29:13:35  5.9  0.85 174
PPM 094505     05:36:06.3 +28:03:53  8.3  0.76 175
PPM 094558     05:38:02.5 +29:01:55 10.0  0.30 174
06QG181        05:37:33.4 +28:45:21 14.6       174
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 1.3 sigma about the mid-time.
The median site spacing is 18.0 km RECON observability=1.0 and success probability=8.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 02:33:37 -19.5 Dark Down 49.0 103.2 Up 02:18:37 - 02:48:37 6151
Summerland 02:33:37 -19.3 Dark Down 48.9 102.6 Up 02:18:37 - 02:48:37 6134
Penticton 02:33:38 -19.4 Dark Down 49.0 102.6 Up 02:18:38 - 02:48:38 6125
Okanagan Falls 02:33:38 -19.3 Dark Down 49.0 102.4 Up 02:18:38 - 02:48:38 6110
Oliver 02:33:40 -19.3 Dark Down 49.1 102.2 Up 02:18:40 - 02:48:40 6095
Anarchist Mountain Observatory 02:33:39 -19.4 Dark Down 49.2 102.2 Up 02:18:39 - 02:48:39 6075
Oroville 02:33:40 -19.3 Dark Down 49.2 102.1 Up 02:18:40 - 02:48:40 6071
Tonasket 02:33:41 -19.3 Dark Down 49.2 101.8 Up 02:18:41 - 02:48:41 6050
Okanogan 02:33:42 -19.2 Dark Down 49.2 101.3 Up 02:18:42 - 02:48:42 6026
Brewster 02:33:44 -19.0 Dark Down 49.1 100.8 Up 02:18:44 - 02:48:44 6009
Manson/Chelan 02:33:45 -18.7 Dark Down 48.9 100.2 Up 02:18:45 - 02:48:45 6002
Entiat 02:33:46 -18.6 Dark Down 48.9 99.9 Up 02:18:46 - 02:48:46 5986
Wenatchee 02:33:46 -18.5 Dark Down 48.9 99.6 Up 02:18:46 - 02:48:46 5967
Ellensburg 02:33:49 -18.3 Dark Down 48.8 98.9 Up 02:18:49 - 02:48:49 5938
Yakima 02:33:50 -18.2 Dark Down 48.9 98.4 Up 02:18:50 - 02:48:50 5903
Toppenish/White Swan 02:33:51 -18.3 Dark Down 49.0 98.3 Up 02:18:51 - 02:48:51 5879
Goldendale 02:33:54 -17.9 AT Down 48.8 97.4 Up 02:18:54 - 02:48:54 5844
The Dalles 02:33:55 -17.6 AT Down 48.6 96.8 Up 02:18:55 - 02:48:55 5836
Pasco 02:33:48 -19.1 Dark Down 49.9 99.3 Up 02:18:48 - 02:48:48 5828
George/Umatilla 02:33:49 -18.9 Dark Down 49.8 98.7 Up 02:18:49 - 02:48:49 5805
PNWRO 02:33:48 -19.2 Dark Down 50.1 99.2 Up 02:18:48 - 02:48:48 5798
Maupin 02:33:56 -17.6 AT Down 48.7 96.4 Up 02:18:56 - 02:48:56 5796
Madras/Culver 02:33:58 -17.5 AT Down 48.8 95.8 Up 02:18:58 - 02:48:58 5749
Sisters 02:34:01 -17.1 AT Down 48.5 95.1 Up 02:19:01 - 02:49:01 5735
Redmond 02:34:00 -17.4 AT Down 48.8 95.4 Up 02:19:00 - 02:49:00 5719
Bend 02:34:01 -17.2 AT Down 48.7 95.0 Up 02:19:01 - 02:49:01 5705
Oregon Observatory 02:34:01 -17.1 AT Down 48.6 94.7 Up 02:19:01 - 02:49:01 5694
La Pine/Gilchrist 02:34:02 -17.0 AT Down 48.6 94.4 Up 02:19:02 - 02:49:02 5678
North Lake 02:34:02 -17.4 AT Down 49.1 94.4 Up 02:19:02 - 02:49:02 5618
Chiloquin 02:34:07 -16.5 AT Down 48.4 92.9 Up 02:19:07 - 02:49:07 5590
Klamath Falls 02:34:07 -16.5 AT Down 48.5 92.6 Up 02:19:07 - 02:49:07 5557
Paisley 02:34:03 -17.5 AT Down 49.4 94.0 Up 02:19:03 - 02:49:03 5556
Tulelake 02:34:08 -16.7 AT Down 48.7 92.5 Up 02:19:08 - 02:49:08 5522
Lakeview 02:34:04 -17.5 AT Down 49.5 93.6 Up 02:19:04 - 02:49:04 5504
Cedarville 02:34:06 -17.5 AT Down 49.7 92.9 Up 02:19:06 - 02:49:06 5438
Fall River/Burney 02:34:10 -16.5 AT Down 48.8 91.5 Up 02:19:10 - 02:49:10 5437
Susanville 02:34:11 -17.0 AT Down 49.4 91.3 Up 02:19:11 - 02:49:11 5352
Greenville 02:34:12 -16.7 AT Down 49.2 90.8 Up 02:19:12 - 02:49:12 5338
Gimple 02:34:12 -16.7 AT Down 49.3 90.9 Up 02:19:12 - 02:49:12 5334
Quincy 02:34:13 -16.6 AT Down 49.2 90.6 Up 02:19:13 - 02:49:13 5319
Portola 02:34:12 -17.0 AT Down 49.6 90.7 Up 02:19:12 - 02:49:12 5290
Reno 02:34:11 -17.4 AT Down 50.1 90.8 Up 02:19:11 - 02:49:11 5242
Carson City 02:34:12 -17.3 AT Down 50.1 90.4 Up 02:19:12 - 02:49:12 5208
Gardnerville 02:34:12 -17.3 AT Down 50.1 90.2 Up 02:19:12 - 02:49:12 5184
Yerington 02:34:11 -17.8 AT Down 50.6 90.6 Up 02:19:11 - 02:49:11 5167
Hawthorne 02:34:11 -18.1 Dark Down 51.0 90.4 Up 02:19:11 - 02:49:11 5105
Lee Vining 02:34:14 -17.6 AT Down 50.6 89.4 Up 02:19:14 - 02:49:14 5069
Tonopah 02:34:08 -19.1 Dark Down 52.1 90.7 Up 02:19:08 - 02:49:08 5010
Bishop 02:34:13 -18.0 Dark Down 51.2 89.1 Up 02:19:13 - 02:49:13 4986
Lone Pine 02:34:14 -18.1 Dark Down 51.4 88.3 Up 02:19:14 - 02:49:14 4901
Beatty 02:34:10 -19.2 Dark Down 52.5 89.4 Up 02:19:10 - 02:49:10 4883
CPSLO 02:34:25 -15.8 AT Down 49.3 85.4 Up 02:19:25 - 02:49:25 4874
Niwot 02:33:25 -28.5 Dark Down 61.0 102.9 Up 02:18:25 - 02:48:25 4825
SwRI 02:33:24 -28.4 Dark Down 61.0 102.6 Up 02:18:24 - 02:48:24 4817
Indian Springs 02:34:08 -20.0 Dark Down 53.3 89.6 Up 02:19:08 - 02:49:08 4814
Henderson 02:34:07 -20.4 Dark Down 53.9 89.3 Up 02:19:07 - 02:49:07 4737
Wildwood 02:34:22 -17.2 AT Down 50.9 84.9 Up 02:19:22 - 02:49:22 4679
Searchlight/Boulder City 02:34:08 -20.4 Dark Down 53.9 88.6 Up 02:19:08 - 02:49:08 4679
Laughlin/Bullhead City 02:34:08 -20.6 Dark Down 54.2 88.4 Up 02:19:08 - 02:49:08 4638
Patrick 02:34:05 -21.2 Dark Down 54.8 89.1 Up 02:19:05 - 02:49:05 4637
Kingman/Dolan Springs 02:34:06 -21.0 Dark Down 54.6 88.7 Up 02:19:06 - 02:49:06 4621
Mohave Valley 02:34:08 -20.5 Dark Down 54.2 88.0 Up 02:19:08 - 02:49:08 4611
DCO 02:34:03 -21.7 Dark Down 55.3 89.0 Up 02:19:03 - 02:49:03 4582
Idyllwild 02:34:18 -18.6 Dark Down 52.4 85.4 Up 02:19:18 - 02:49:18 4574
Lake Havasu City 02:34:08 -20.7 Dark Down 54.4 87.6 Up 02:19:08 - 02:49:08 4562
Parker 02:34:09 -20.6 Dark Down 54.4 87.1 Up 02:19:09 - 02:49:09 4527
Blythe 02:34:11 -20.3 Dark Down 54.1 86.2 Up 02:19:11 - 02:49:11 4485
Calipatria 02:34:16 -19.4 Dark Down 53.3 85.1 Up 02:19:16 - 02:49:16 4471
Yuma 02:34:14 -20.1 Dark Down 54.0 84.9 Up 02:19:14 - 02:49:14 4395

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, (2023/01/19 02:31UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 18.47 167
Alnath         05:26:17.5 +28:36:23  1.6  2.15 176
PPM 094619     05:39:18.3 +29:12:54  5.9  0.85 174
PPM 094505     05:34:39.1 +28:03:04  8.3  0.76 175
PPM 094558     05:36:34.6 +29:01:10 10.0  0.30 174
06QG181        05:36:05.7 +28:44:34 14.6       175
Positions are for J2000

Event circumstances last updated at 2019/06/08 04:38:18 UT

Marc W. Buie, Southwest Research Institute

RECON