RECON: TNO occultation with 469442

Event between (469442) 02GG166 and star UC4-335-078443 with event index number of 196913

Geocentric closest approach at 2019/06/22 07:27:35 UTC

J2000 position of star is 15:37:05.0 -23:04:13
Equinox of date position of star is 15:38:06.9 -23:07:37
Stellar brightness R=14.2, use SENSEUP=64
Star is 89 degrees from the moon. Moon is 78% illuminated.
TNO apparent brightness V=20.7

[RECON map]
TNO is 18.5 AU from the Sun and 17.7 AU from the Earth.
The TNO is moving 17.2 km/sec on the sky relative to the star, or, 4.8 arcsec/hr.
The 1-sigma error in the time of the event is 65 seconds.
The 1-sigma cross-track error in the shadow position is 789 km.
The sky-plane scale is 12806.8 km/arcsec.

The TNO has an absolute magnitude Hv=7.9
Diameter=158.5 km assuming a 5% albedo -- 9.2 sec chord
Diameter=64.7 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 469442, (2019/06/22 07:28UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.3 -26:28:25  0.9 12.34  77
7Del Sco       16:01:29.3 -22:40:32  2.3  5.37  84
PPM 264469     15:38:57.0 -23:12:17  5.8  0.18  89
PPM 264491     15:39:53.5 -23:06:43  7.1  0.38  89
PPM 264445     15:37:52.9 -23:00:16  9.5  0.15  89
469442         15:38:13.9 -23:08:00 14.2        89
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 11.3 km RECON observability=0.6 and success probability=0.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 07:27:03 -17.3 AT Up 13.7 206.6 Really Low 07:21:06 - 07:32:59 3956
Tonasket 07:27:02 -17.5 AT Up 13.9 206.7 Really Low 07:21:05 - 07:32:58 3949
Okanogan 07:27:01 -17.8 AT Up 14.3 206.6 Really Low 07:21:04 - 07:32:57 3939
Brewster 07:27:01 -18.1 Dark Up 14.6 206.4 Really Low 07:21:05 - 07:32:58 3931
Manson/Chelan 07:27:02 -18.2 Dark Up 14.9 206.1 Really Low 07:21:06 - 07:32:59 3924
Entiat 07:27:02 -18.4 Dark Up 15.1 206.1 Really Low 07:21:05 - 07:32:58 3917
Wenatchee 07:27:02 -18.7 Dark Up 15.3 206.0 Really Low 07:21:05 - 07:32:58 3909
Ellensburg 07:27:02 -19.1 Dark Up 15.8 205.9 Really Low 07:21:05 - 07:32:58 3896
Yakima 07:27:00 -19.5 Dark Up 16.1 205.9 Really Low 07:21:04 - 07:32:57 3883
Toppenish/White Swan 07:26:59 -19.7 Dark Up 16.3 206.1 Really Low 07:21:03 - 07:32:56 3876
Pasco 07:26:54 -19.9 Dark Up 16.0 207.2 Really Low 07:20:57 - 07:32:50 3875
PNWRO 07:26:52 -20.2 Dark Up 16.2 207.4 Really Low 07:20:55 - 07:32:48 3867
George/Umatilla 07:26:54 -20.3 Dark Up 16.4 207.0 Really Low 07:20:57 - 07:32:50 3863
Goldendale 07:26:59 -20.2 Dark Up 16.9 205.7 Really Low 07:21:03 - 07:32:56 3857
The Dalles 07:27:00 -20.4 Dark Up 17.2 205.4 Really Low 07:21:04 - 07:32:57 3848
Maupin 07:26:59 -20.8 Dark Up 17.6 205.6 Really Low 07:21:03 - 07:32:56 3834
Madras/Culver 07:26:57 -21.3 Dark Up 18.1 205.6 Really Low 07:21:00 - 07:32:53 3815
Redmond 07:26:57 -21.7 Dark Up 18.4 205.6 Really Low 07:21:01 - 07:32:54 3802
Sisters 07:26:59 -21.6 Dark Up 18.5 205.3 Really Low 07:21:02 - 07:32:55 3802
Bend 07:26:56 -21.9 Dark Up 18.7 205.5 Really Low 07:21:00 - 07:32:53 3794
Oregon Observatory 07:26:57 -22.0 Dark Up 18.9 205.4 Really Low 07:21:00 - 07:32:53 3787
La Pine/Gilchrist 07:26:57 -22.2 Dark Up 19.1 205.4 Really Low 07:21:00 - 07:32:53 3779
North Lake 07:26:53 -22.7 Dark Up 19.3 206.0 Really Low 07:20:57 - 07:32:50 3765
Paisley 07:26:50 -23.3 Dark Up 19.7 206.4 Really Low 07:20:54 - 07:32:47 3744
Chiloquin 07:26:56 -23.3 Dark Up 20.2 205.2 Low 07:20:59 - 07:32:52 3735
Lakeview 07:26:47 -23.8 Dark Up 20.0 206.7 Low 07:20:51 - 07:32:44 3725
Klamath Falls 07:26:54 -23.6 Dark Up 20.5 205.4 Low 07:20:57 - 07:32:50 3722
Tulelake 07:26:52 -23.9 Dark Up 20.6 205.7 Low 07:20:56 - 07:32:49 3712
Cedarville 07:26:45 -24.5 Dark Up 20.6 206.9 Low 07:20:48 - 07:32:41 3698
Fall River/Burney 07:26:49 -24.8 Dark Up 21.4 205.9 Low 07:20:53 - 07:32:46 3674
Susanville 07:26:45 -25.5 Dark Up 21.7 206.7 Low 07:20:49 - 07:32:42 3649
Gimple 07:26:45 -25.8 Dark Up 22.1 206.5 Low 07:20:49 - 07:32:42 3637
Greenville 07:26:45 -25.8 Dark Up 22.1 206.5 Low 07:20:49 - 07:32:42 3636
Quincy 07:26:45 -26.0 Dark Up 22.3 206.5 Low 07:20:49 - 07:32:42 3627
Portola 07:26:42 -26.2 Dark Up 22.2 207.0 Low 07:20:46 - 07:32:39 3624
Reno 07:26:39 -26.5 Dark Up 22.2 207.6 Low 07:20:42 - 07:32:35 3613
Niwot 07:25:41 -26.2 Dark Up 15.6 219.9 Really Low 07:19:44 - 07:31:37 3606
Carson City 07:26:38 -26.9 Dark Up 22.5 207.7 Low 07:20:42 - 07:32:35 3597
Yerington 07:26:35 -27.1 Dark Up 22.5 208.3 Low 07:20:39 - 07:32:32 3590
Gardnerville 07:26:37 -27.1 Dark Up 22.7 207.8 Low 07:20:41 - 07:32:34 3586
Hawthorne 07:26:32 -27.6 Dark Up 22.7 208.8 Low 07:20:35 - 07:32:28 3569
Tonopah 07:26:24 -28.2 Dark Up 22.6 210.2 Low 07:20:28 - 07:32:21 3549
Lee Vining 07:26:32 -28.2 Dark Up 23.4 208.5 Low 07:20:36 - 07:32:29 3542
Bishop 07:26:28 -28.8 Dark Up 23.6 209.3 Low 07:20:31 - 07:32:24 3514
Beatty 07:26:18 -29.4 Dark Up 23.4 210.8 Low 07:20:22 - 07:32:15 3492
Lone Pine 07:26:24 -29.6 Dark Up 24.2 209.7 Low 07:20:27 - 07:32:20 3476
Indian Springs 07:26:13 -29.8 Dark Up 23.2 211.8 Low 07:20:17 - 07:32:10 3476
Henderson 07:26:08 -30.4 Dark Up 23.4 212.6 Low 07:20:12 - 07:32:05 3449
Searchlight/Boulder City 07:26:06 -31.0 Dark Up 23.9 212.7 Low 07:20:09 - 07:32:02 3419
Patrick 07:26:02 -31.1 Dark Up 23.4 213.7 Low 07:20:05 - 07:31:58 3415
Kingman/Dolan Springs 07:26:02 -31.3 Dark Up 23.7 213.6 Low 07:20:06 - 07:31:59 3404
CPSLO 07:26:33 -30.6 Dark Up 26.3 207.7 Low 07:20:36 - 07:32:29 3403
Laughlin/Bullhead City 07:26:04 -31.3 Dark Up 24.0 213.1 Low 07:20:07 - 07:32:00 3403
DCO 07:25:58 -31.4 Dark Up 23.4 214.4 Low 07:20:01 - 07:31:54 3398
Mohave Valley 07:26:03 -31.6 Dark Up 24.2 213.2 Low 07:20:07 - 07:32:00 3388
Lake Havasu City 07:26:01 -32.0 Dark Up 24.4 213.5 Low 07:20:05 - 07:31:58 3367
Parker 07:26:00 -32.3 Dark Up 24.7 213.6 Low 07:20:04 - 07:31:57 3348
Wildwood 07:26:19 -32.0 Dark Up 26.6 209.8 Low 07:20:23 - 07:32:16 3344
Idyllwild 07:26:10 -32.6 Dark Up 26.1 211.6 Low 07:20:13 - 07:32:06 3328
Blythe 07:26:00 -32.8 Dark Up 25.3 213.5 Low 07:20:03 - 07:31:56 3319
Calipatria 07:26:02 -33.3 Dark Up 26.1 212.8 Low 07:20:06 - 07:31:59 3292
Yuma 07:25:58 -33.8 Dark Up 26.1 213.7 Low 07:20:01 - 07:31:54 3268

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 469442, (2019/06/22 07:28UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 12.34  77
7Del Sco       16:00:20.0 -22:37:18  2.3  5.37  84
PPM 264469     15:37:48.0 -23:08:31  5.8  0.18  89
PPM 264491     15:38:44.6 -23:02:58  7.1  0.38  89
PPM 264445     15:36:44.0 -22:56:28  9.5  0.15  89
469442         15:37:05.0 -23:04:13 14.2        89
Positions are for J2000

Event circumstances last updated at 2017/07/01 17:47:13 UT

Marc W. Buie, Southwest Research Institute

RECON