RECON: TNO occultation with 552678

Event between (552678) 10JG210 and star GA0880:05354298 with event index number of 2222166

Geocentric closest approach at 2022/08/30 04:56:02 UTC

J2000 position of star is 17:13:40.1 -01:11:55
Equinox of date position of star is 17:14:47.7 -01:13:22
Stellar brightness G=15.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 68 degrees from the moon. Moon is 8% illuminated.
TNO apparent brightness V=21.6

[RECON map]
TNO is 18.9 AU from the Sun and 18.7 AU from the Earth.
The TNO is moving 13.1 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 53 seconds.
The 1-sigma cross-track error in the shadow position is 796 km.
The sky-plane scale is 13528.9 km/arcsec.

The TNO has an absolute magnitude Hv=8.6
Diameter=113.2 km assuming a 5% albedo -- 8.8 sec chord
Diameter=46.2 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 552678, (2022/08/30 04:56UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:48.0 -26:28:49  0.9 27.39  60
60Bet Oph      17:44:35.6 +04:33:34  2.8  9.42  75
PPM 180004     17:09:23.9 -01:06:27  6.5  1.37  66
PPM 180014     17:13:32.6 -00:47:59  8.4  0.53  68
PPM 180019     17:15:54.5 -01:22:18  9.5  0.31  68
552678         17:14:50.4 -01:13:26 15.6        68
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 9.5 km RECON observability=1.0 and success probability=0.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Dunrhomin 04:51:02 -32.3 Dark Down 30.1 238.5 Up 04:46:06 - 04:55:59 4248
George/Scottsdale 04:51:45 -33.4 Dark Down 38.0 236.4 Up 04:46:49 - 04:56:42 4083
Yuma 04:51:48 -32.3 Dark Down 40.5 234.5 Up 04:46:52 - 04:56:45 3916
Parker 04:51:41 -31.6 Dark Down 39.4 233.8 Up 04:46:44 - 04:56:37 3895
Blythe 04:51:44 -31.7 Dark Down 39.9 233.9 Up 04:46:47 - 04:56:40 3890
Patrick 04:51:30 -31.0 Dark Down 38.4 233.4 Up 04:46:34 - 04:56:27 3884
Lake Havasu City 04:51:38 -31.3 Dark Down 39.2 233.6 Up 04:46:42 - 04:56:35 3881
Kingman/Dolan Springs 04:51:31 -31.0 Dark Down 38.7 233.3 Up 04:46:34 - 04:56:27 3878
Mohave Valley 04:51:33 -30.9 Dark Down 39.2 233.0 Up 04:46:37 - 04:56:30 3850
Laughlin/Bullhead City 04:51:32 -30.7 Dark Down 39.0 232.8 Up 04:46:36 - 04:56:29 3841
Calipatria 04:51:45 -31.4 Dark Down 40.8 233.3 Up 04:46:49 - 04:56:42 3836
Henderson 04:51:27 -29.9 Dark Down 38.8 231.9 Up 04:46:30 - 04:56:23 3783
Idyllwild 04:51:40 -30.3 Dark Down 41.3 231.7 Up 04:46:44 - 04:56:37 3730
Indian Springs 04:51:22 -29.1 Dark Down 38.9 230.8 Up 04:46:25 - 04:56:18 3716
Beatty 04:51:21 -28.2 Dark Down 39.3 229.5 Up 04:46:24 - 04:56:17 3627
Wildwood 04:51:37 -28.8 Dark Down 42.3 229.5 Up 04:46:41 - 04:56:34 3576
Tonopah 04:51:12 -27.2 Dark Down 38.9 228.3 Up 04:46:15 - 04:56:08 3556
Bishop 04:51:16 -26.9 Dark Down 40.0 227.5 Up 04:46:20 - 04:56:13 3493
Hawthorne 04:51:07 -26.0 Dark Down 39.4 226.5 Up 04:46:10 - 04:56:03 3439
Lee Vining 04:51:10 -26.1 Dark Down 40.1 226.3 Up 04:46:13 - 04:56:06 3422
Yerington 04:51:05 -25.4 Dark Down 39.4 225.6 Up 04:46:08 - 04:56:01 3385
CPSLO 04:51:28 -26.7 Dark Down 42.7 226.4 Up 04:46:31 - 04:56:24 3384
Gardnerville 04:51:03 -25.1 Dark Down 39.7 225.0 Up 04:46:07 - 04:56:00 3344
Carson City 04:51:03 -24.9 Dark Down 39.6 224.8 Up 04:46:06 - 04:55:59 3333
Reno 04:51:00 -24.7 Dark Down 39.4 224.6 Up 04:46:03 - 04:55:56 3320
Portola 04:50:56 -24.1 Dark Down 39.5 223.7 Up 04:46:00 - 04:55:53 3265
Susanville 04:50:52 -23.6 Dark Down 39.2 223.1 Up 04:45:56 - 04:55:49 3232
Cedarville 04:50:47 -23.2 Dark Down 38.1 223.0 Up 04:45:50 - 04:55:43 3230
Quincy 04:50:56 -23.7 Dark Down 39.7 223.1 Up 04:45:59 - 04:55:52 3226
Gimple 04:50:56 -23.7 Dark Down 39.5 223.1 Up 04:46:00 - 04:55:53 3225
Greenville 04:50:56 -23.6 Dark Down 39.5 223.0 Up 04:45:59 - 04:55:52 3219
Lakeview 04:50:42 -22.7 Dark Down 37.8 222.5 Up 04:45:46 - 04:55:39 3195
Paisley 04:50:39 -22.3 Dark Down 37.5 222.0 Up 04:45:43 - 04:55:36 3164
Fall River/Burney 04:50:49 -22.8 Dark Down 39.1 222.0 Up 04:45:53 - 04:55:46 3158
PNWRO 04:50:20 -21.1 Dark Down 34.3 222.1 Up 04:45:24 - 04:55:17 3154
Pasco 04:50:18 -20.8 Dark Down 34.2 221.7 Up 04:45:21 - 04:55:14 3130
North Lake 04:50:35 -21.7 Dark Down 37.3 221.3 Up 04:45:39 - 04:55:32 3121
Klamath Falls 04:50:42 -21.8 Dark Down 38.4 220.9 Up 04:45:46 - 04:55:39 3093
Chiloquin 04:50:38 -21.6 Dark Down 38.2 220.6 Up 04:45:42 - 04:55:35 3076
Redmond 04:50:29 -20.9 Dark Down 36.6 220.5 Up 04:45:33 - 04:55:26 3066
Bend 04:50:31 -21.0 Dark Down 36.8 220.4 Up 04:45:34 - 04:55:27 3064
La Pine/Gilchrist 04:50:33 -21.1 Dark Down 37.2 220.4 Up 04:45:37 - 04:55:30 3064
Oregon Observatory 04:50:30 -21.0 Dark Down 37.0 220.4 Up 04:45:33 - 04:55:26 3061
Toppenish/White Swan 04:50:17 -20.0 Dark Down 34.7 220.3 Up 04:45:21 - 04:55:14 3043
Maupin 04:50:24 -20.4 Dark Down 35.9 220.1 Up 04:45:27 - 04:55:20 3041
Sisters 04:50:29 -20.7 Dark Down 36.8 220.0 Up 04:45:33 - 04:55:26 3038
Goldendale 04:50:20 -20.2 Dark Down 35.3 220.1 Up 04:45:24 - 04:55:17 3035
Yakima 04:50:16 -19.8 Dark Down 34.6 220.0 Up 04:45:19 - 04:55:12 3024
The Dalles 04:50:22 -20.1 Dark Down 35.6 219.8 Up 04:45:26 - 04:55:19 3019
Okanogan 04:50:07 -19.2 Dark Down 32.8 220.3 Up 04:45:10 - 04:55:03 3018
Brewster 04:50:08 -19.2 Dark Down 33.1 220.2 Up 04:45:12 - 04:55:05 3016
Tonasket 04:50:04 -19.0 Dark Down 32.5 220.3 Up 04:45:08 - 04:55:01 3014
Ellensburg 04:50:14 -19.6 Dark Down 34.3 219.8 Up 04:45:17 - 04:55:10 3010
Wenatchee 04:50:12 -19.4 Dark Down 33.9 219.9 Up 04:45:16 - 04:55:09 3008
Anarchist Mountain Observatory 04:50:03 -18.9 Dark Down 32.2 220.2 Up 04:45:07 - 04:55:00 3007
Manson/Chelan 04:50:07 -19.2 Dark Down 33.4 219.8 Up 04:45:10 - 04:55:03 3001
Oliver 04:50:00 -18.7 Dark Down 32.2 219.9 Up 04:45:03 - 04:54:56 2987
Penticton 04:49:59 -18.4 Dark Down 31.9 219.8 Up 04:45:03 - 04:54:56 2973
Kelowna 04:49:58 -18.3 Dark Down 31.6 219.7 Up 04:45:01 - 04:54:54 2966
Summerland 04:50:00 -18.3 Dark Down 31.9 219.6 Up 04:45:03 - 04:54:56 2964
Clarence Fulton 04:49:56 -18.1 Dark Down 31.3 219.7 Up 04:45:00 - 04:54:53 2959
Peachland 04:49:58 -18.2 Dark Down 31.9 219.5 Up 04:45:02 - 04:54:55 2952
Victoria 04:50:03 -17.1 AT Down 34.3 216.0 Up 04:45:07 - 04:55:00 2769

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 552678, (2022/08/30 04:56UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 27.39  60
60Bet Oph      17:43:28.3 +04:34:06  2.8  9.42  75
PPM 180004     17:08:13.6 -01:04:47  6.5  1.37  66
PPM 180014     17:12:22.5 -00:46:27  8.4  0.53  68
PPM 180019     17:14:44.1 -01:20:50  9.5  0.31  68
552678         17:13:40.1 -01:11:55 15.6        68
Positions are for J2000

Event circumstances last updated at 2021/10/14 01:44:40 UT

Marc W. Buie, Southwest Research Institute

RECON