RECON: TNO occultation with 182222

Event between (182222) 00YU1 and star GA1080:00844607 with event index number of 360151

Geocentric closest approach at 2018/11/27 02:36:06 UTC

J2000 position of star is 05:09:10.3 +18:07:45
Equinox of date position of star is 05:10:16.2 +18:09:07
Stellar brightness G=15.7, use SENSEUP=128
Star is 39 degrees from the moon. Moon is 81% illuminated.
TNO apparent brightness V=23.1

[RECON map]
TNO is 42.8 AU from the Sun and 41.9 AU from the Earth.
The TNO is moving 24.9 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 920 seconds.
The 1-sigma cross-track error in the shadow position is 4120 km.
The sky-plane scale is 30361.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.8
Diameter=263.0 km assuming a 5% albedo -- 10.6 sec chord
Diameter=107.4 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 182222, (2018/11/27 02:36UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:00.5 +16:32:45  0.8  8.10  47
Alnath         05:27:29.3 +28:37:18  1.6 11.19  34
104 Tau        05:08:34.1 +18:40:09  5.6  0.66  39
PPM 120670     05:11:45.8 +17:27:44  7.7  0.78  39
PPM 120656     05:10:41.5 +17:55:51  9.4  0.24  39
PPM 120641     05:09:54.2 +18:18:27 10.4  0.18  39
182222         05:10:16.5 +18:09:07 15.7        38
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 1.0 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 02:38:29 -24.2 Dark Down 12.8 77.0 Really Low 02:23:29 - 02:53:29 6988
Kelowna 02:38:28 -24.5 Dark Down 13.1 77.3 Really Low 02:23:28 - 02:53:28 6983
Penticton 02:38:30 -24.3 Dark Down 12.9 77.1 Really Low 02:23:30 - 02:53:30 6966
Okanagan Falls 02:38:30 -24.3 Dark Down 12.8 77.0 Really Low 02:23:30 - 02:53:30 6955
Oliver 02:38:31 -24.3 Dark Down 12.8 77.0 Really Low 02:23:31 - 02:53:31 6946
Anarchist Mountain Observatory 02:38:32 -24.4 Dark Down 12.9 77.1 Really Low 02:23:32 - 02:53:32 6931
Oroville 02:38:32 -24.4 Dark Down 12.8 77.1 Really Low 02:23:32 - 02:53:32 6928
Tonasket 02:38:32 -24.4 Dark Down 12.8 77.0 Really Low 02:23:32 - 02:53:32 6915
Okanogan 02:38:34 -24.2 Dark Down 12.6 76.8 Really Low 02:23:34 - 02:53:34 6898
Brewster 02:38:35 -24.1 Dark Down 12.4 76.6 Really Low 02:23:35 - 02:53:35 6887
Manson/Chelan 02:38:36 -23.8 Dark Down 12.2 76.3 Really Low 02:23:36 - 02:53:36 6883
Entiat 02:38:37 -23.7 Dark Down 12.1 76.2 Really Low 02:23:37 - 02:53:37 6871
Wenatchee 02:38:38 -23.7 Dark Down 11.9 76.1 Really Low 02:23:38 - 02:53:38 6858
Ellensburg 02:38:39 -23.5 Dark Down 11.7 75.9 Really Low 02:23:39 - 02:53:39 6838
Yakima 02:38:40 -23.4 Dark Down 11.6 75.8 Really Low 02:23:40 - 02:53:40 6813
Toppenish/White Swan 02:38:41 -23.5 Dark Down 11.6 75.9 Really Low 02:23:41 - 02:53:41 6796
Goldendale 02:38:43 -23.2 Dark Down 11.2 75.5 Really Low 02:23:43 - 02:53:43 6772
The Dalles 02:38:44 -22.9 Dark Down 10.9 75.2 Really Low 02:23:44 - 02:53:44 6766
Pasco 02:38:42 -24.4 Dark Down 12.5 76.7 Really Low 02:23:42 - 02:53:42 6758
George/Umatilla 02:38:43 -24.2 Dark Down 12.2 76.5 Really Low 02:23:43 - 02:53:43 6743
PNWRO 02:38:43 -24.5 Dark Down 12.6 76.8 Really Low 02:23:43 - 02:53:43 6738
Maupin 02:38:46 -22.9 Dark Down 10.9 75.2 Really Low 02:23:46 - 02:53:46 6737
Madras/Culver 02:38:48 -22.8 Dark Down 10.7 75.1 Really Low 02:23:48 - 02:53:48 6703
Sisters 02:38:48 -22.4 Dark Down 10.3 74.7 Really Low 02:23:48 - 02:53:48 6693
Redmond 02:38:48 -22.7 Dark Down 10.6 75.0 Really Low 02:23:48 - 02:53:48 6681
Bend 02:38:50 -22.6 Dark Down 10.5 74.8 Really Low 02:23:50 - 02:53:50 6671
Oregon Observatory 02:38:50 -22.5 Dark Down 10.3 74.7 Really Low 02:23:50 - 02:53:50 6663
La Pine/Gilchrist 02:38:50 -22.4 Dark Down 10.2 74.6 Really Low 02:23:50 - 02:53:50 6651
North Lake 02:38:52 -22.8 Dark Down 10.5 75.0 Really Low 02:23:52 - 02:53:52 6607
Chiloquin 02:38:53 -22.0 Dark Down 9.7 74.2 Really Low 02:23:53 - 02:53:53 6586
Paisley 02:38:54 -23.0 Dark Down 10.7 75.1 Really Low 02:23:54 - 02:53:54 6562
Klamath Falls 02:38:54 -22.0 Dark Down 9.7 74.2 Really Low 02:23:54 - 02:53:54 6561
Tulelake 02:38:57 -22.2 Dark Down 9.8 74.4 Really Low 02:23:57 - 02:53:57 6535
Lakeview 02:38:56 -23.0 Dark Down 10.7 75.1 Really Low 02:23:56 - 02:53:56 6522
Cedarville 02:38:58 -23.1 Dark Down 10.6 75.1 Really Low 02:23:58 - 02:53:58 6473
Fall River/Burney 02:38:59 -22.1 Dark Down 9.6 74.3 Really Low 02:23:59 - 02:53:59 6471
Susanville 02:39:01 -22.6 Dark Down 10.0 74.6 Really Low 02:24:01 - 02:54:01 6408
Greenville 02:39:02 -22.3 Dark Down 9.7 74.4 Really Low 02:24:02 - 02:54:02 6396
Gimple 02:39:02 -22.4 Dark Down 9.8 74.5 Really Low 02:24:02 - 02:54:02 6393
Quincy 02:39:03 -22.3 Dark Down 9.7 74.4 Really Low 02:24:03 - 02:54:03 6381
Portola 02:39:04 -22.6 Dark Down 10.0 74.7 Really Low 02:24:04 - 02:54:04 6360
Reno 02:39:05 -23.1 Dark Down 10.4 75.0 Really Low 02:24:05 - 02:54:05 6324
Carson City 02:39:06 -23.0 Dark Down 10.3 75.0 Really Low 02:24:06 - 02:54:06 6297
Gardnerville 02:39:07 -23.0 Dark Down 10.3 74.9 Really Low 02:24:07 - 02:54:07 6278
Yerington 02:39:07 -23.5 Dark Down 10.8 75.3 Really Low 02:24:07 - 02:54:07 6266
Hawthorne 02:39:08 -23.8 Dark Down 11.0 75.5 Really Low 02:24:08 - 02:54:08 6218
Lee Vining 02:39:10 -23.4 Dark Down 10.5 75.1 Really Low 02:24:10 - 02:54:10 6189
Tonopah 02:39:10 -24.9 Dark Down 12.0 76.3 Really Low 02:24:10 - 02:54:10 6145
Bishop 02:39:12 -23.9 Dark Down 11.0 75.5 Really Low 02:24:12 - 02:54:12 6125
Lone Pine 02:39:14 -24.0 Dark Down 11.0 75.5 Really Low 02:24:14 - 02:54:14 6058
Beatty 02:39:14 -25.1 Dark Down 12.1 76.3 Really Low 02:24:14 - 02:54:14 6045
CPSLO 02:39:17 -21.7 Dark Down 8.7 73.9 Really Low 02:24:17 - 02:54:17 6030
Indian Springs 02:39:14 -25.9 Dark Down 12.9 76.8 Really Low 02:24:14 - 02:54:14 5989
Niwot 02:39:00 -34.3 Dark Down 21.5 84.0 Low 02:24:00 - 02:54:00 5966
Henderson 02:39:16 -26.4 Dark Down 13.3 77.1 Really Low 02:24:16 - 02:54:16 5928
Searchlight/Boulder City 02:39:18 -26.4 Dark Down 13.2 77.0 Really Low 02:24:18 - 02:54:18 5881
Wildwood 02:39:22 -23.2 Dark Down 10.0 74.8 Really Low 02:24:22 - 02:54:22 5878
Laughlin/Bullhead City 02:39:19 -26.6 Dark Down 13.4 77.1 Really Low 02:24:19 - 02:54:19 5847
Patrick 02:39:18 -27.2 Dark Down 14.1 77.6 Really Low 02:24:18 - 02:54:18 5846
Kingman/Dolan Springs 02:39:18 -27.0 Dark Down 13.9 77.4 Really Low 02:24:18 - 02:54:18 5834
Mohave Valley 02:39:19 -26.6 Dark Down 13.4 77.1 Really Low 02:24:19 - 02:54:19 5826
DCO 02:39:19 -27.8 Dark Down 14.6 77.9 Really Low 02:24:19 - 02:54:19 5801
Idyllwild 02:39:22 -24.7 Dark Down 11.4 75.7 Really Low 02:24:22 - 02:54:22 5795
Lake Havasu City 02:39:21 -26.7 Dark Down 13.5 77.1 Really Low 02:24:21 - 02:54:21 5786
Parker 02:39:21 -26.7 Dark Down 13.5 77.0 Really Low 02:24:21 - 02:54:21 5757
Blythe 02:39:23 -26.4 Dark Down 13.1 76.8 Really Low 02:24:23 - 02:54:23 5723
Calipatria 02:39:24 -25.5 Dark Down 12.2 76.2 Really Low 02:24:24 - 02:54:24 5711
Yuma 02:39:26 -26.2 Dark Down 12.9 76.5 Really Low 02:24:26 - 02:54:26 5649

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 182222, (2018/11/27 02:36UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  8.10  47
Alnath         05:26:17.5 +28:36:23  1.6 11.19  34
104 Tau        05:07:27.7 +18:38:43  5.6  0.66  39
PPM 120670     05:10:39.9 +17:26:24  7.7  0.78  39
PPM 120656     05:09:35.4 +17:54:29  9.4  0.24  39
PPM 120641     05:08:47.9 +18:17:04 10.4  0.18  39
182222         05:09:10.3 +18:07:45 15.7        39
Positions are for J2000

Event circumstances last updated at 2018/10/23 20:44:14 UT

Marc W. Buie, Southwest Research Institute

RECON