RECON: TNO occultation with 528219

Event between (528219) 08KV42 and star GA1440:04900134 with event index number of 1597058

Geocentric closest approach at 2022/07/24 09:22:52 UTC

J2000 position of star is 16:02:04.0 +55:47:55
Equinox of date position of star is 16:02:30.6 +55:44:43
Stellar brightness G=15.4, use SENSEUP=128
Star is 99 degrees from the moon. Moon is 16% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 24.5 AU from the Sun and 24.5 AU from the Earth.
The TNO is moving 24.2 km/sec on the sky relative to the star, or, 4.9 arcsec/hr.
The 1-sigma error in the time of the event is 205 seconds.
The 1-sigma cross-track error in the shadow position is 5792 km.
The sky-plane scale is 17767.3 km/arcsec.

The TNO has an absolute magnitude Hv=8.8
Diameter=104.7 km assuming a 5% albedo -- 4.3 sec chord
Diameter=42.8 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 528219, (2022/07/24 09:23UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:42.1 +38:48:20  0.0 30.69 112
23Bet Dra      17:30:56.6 +52:17:08  2.8 13.37 103
PPM 035211     15:58:19.8 +54:41:12  4.9  1.21 100
PPM 035245     16:01:39.6 +56:22:39  8.2  0.65  98
PPM 035249     16:01:56.6 +55:27:34  9.2  0.29  99
PPM 035250     16:02:08.7 +56:00:25 10.8  0.28  99
528219         16:02:34.8 +55:44:13 15.4        99
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 4.4 sigma about the mid-time.
The median site spacing is 15.8 km RECON observability=1.0 and success probability=5.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 09:19:48 -18.3 Dark Up 43.0 310.4 Up 09:04:48 - 09:34:48 -5635
Summerland 09:19:47 -18.6 Dark Up 43.0 310.5 Up 09:04:47 - 09:34:47 -5673
Penticton 09:19:48 -18.7 Dark Up 42.9 310.6 Up 09:04:48 - 09:34:48 -5676
Okanagan Falls 09:19:47 -18.8 Dark Up 42.8 310.7 Up 09:04:47 - 09:34:47 -5694
Oliver 09:19:47 -19.0 Dark Up 42.6 310.8 Up 09:04:47 - 09:34:47 -5709
Anarchist Mountain Observatory 09:19:47 -19.1 Dark Up 42.4 311.0 Up 09:04:47 - 09:34:47 -5719
Oroville 09:19:46 -19.2 Dark Up 42.4 311.1 Up 09:04:46 - 09:34:46 -5729
Tonasket 09:19:46 -19.4 Dark Up 42.3 311.2 Up 09:04:46 - 09:34:46 -5750
Okanogan 09:19:46 -19.8 Dark Up 42.1 311.4 Up 09:04:46 - 09:34:46 -5788
Brewster 09:19:47 -20.1 Dark Up 42.0 311.5 Up 09:04:47 - 09:34:47 -5820
Manson/Chelan 09:19:48 -20.4 Dark Up 42.1 311.5 Up 09:04:48 - 09:34:48 -5853
SwRI 09:19:11 -22.8 Dark Up 29.1 320.2 Low 09:04:11 - 09:34:11 -5876
Wenatchee 09:19:48 -20.8 Dark Up 41.8 311.8 Up 09:04:48 - 09:34:48 -5904
Ellensburg 09:19:47 -21.3 Dark Up 41.7 312.0 Up 09:04:47 - 09:34:47 -5951
Pasco 09:19:44 -21.7 Dark Up 40.5 312.9 Up 09:04:44 - 09:34:44 -5970
PNWRO 09:19:43 -21.9 Dark Up 40.2 313.1 Up 09:04:43 - 09:34:43 -5985
Yakima 09:19:48 -21.7 Dark Up 41.4 312.2 Up 09:04:48 - 09:34:48 -5990
Toppenish/White Swan 09:19:46 -21.8 Dark Up 41.2 312.4 Up 09:04:46 - 09:34:46 -6004
George/Umatilla 09:19:44 -22.0 Dark Up 40.4 313.1 Up 09:04:44 - 09:34:44 -6009
Goldendale 09:19:48 -22.5 Dark Up 41.0 312.7 Up 09:04:48 - 09:34:48 -6071
The Dalles 09:19:48 -22.7 Dark Up 41.1 312.7 Up 09:04:48 - 09:34:48 -6105
Maupin 09:19:48 -23.1 Dark Up 40.7 313.0 Up 09:04:48 - 09:34:48 -6141
Madras/Culver 09:19:48 -23.7 Dark Up 40.4 313.3 Up 09:04:48 - 09:34:48 -6194
Redmond 09:19:47 -24.0 Dark Up 40.2 313.5 Up 09:04:47 - 09:34:47 -6229
Sisters 09:19:48 -24.1 Dark Up 40.4 313.4 Up 09:04:48 - 09:34:48 -6241
Bend 09:19:48 -24.2 Dark Up 40.1 313.6 Up 09:04:48 - 09:34:48 -6254
Oregon Observatory 09:19:48 -24.4 Dark Up 40.0 313.7 Up 09:04:48 - 09:34:48 -6275
La Pine/Gilchrist 09:19:48 -24.6 Dark Up 39.9 313.8 Up 09:04:48 - 09:34:48 -6297
North Lake 09:19:46 -24.9 Dark Up 39.3 314.2 Up 09:04:46 - 09:34:46 -6315
Paisley 09:19:45 -25.4 Dark Up 38.7 314.6 Up 09:04:45 - 09:34:45 -6353
Lakeview 09:19:44 -25.8 Dark Up 38.3 315.0 Up 09:04:44 - 09:34:44 -6392
Chiloquin 09:19:48 -25.8 Dark Up 39.3 314.4 Up 09:04:48 - 09:34:48 -6413
Klamath Falls 09:19:48 -26.1 Dark Up 39.0 314.6 Up 09:04:48 - 09:34:48 -6442
Cedarville 09:19:43 -26.4 Dark Up 37.7 315.4 Up 09:04:43 - 09:34:43 -6446
Tulelake 09:19:46 -26.3 Dark Up 38.7 314.8 Up 09:04:46 - 09:34:46 -6456
Fall River/Burney 09:19:46 -27.1 Dark Up 38.0 315.3 Up 09:04:46 - 09:34:46 -6537
Susanville 09:19:44 -27.6 Dark Up 37.2 315.9 Up 09:04:44 - 09:34:44 -6566
Gimple 09:19:45 -27.9 Dark Up 37.1 316.0 Up 09:04:45 - 09:34:45 -6599
Greenville 09:19:45 -27.9 Dark Up 37.1 315.9 Up 09:04:45 - 09:34:45 -6602
Reno 09:19:43 -28.2 Dark Up 36.1 316.5 Up 09:04:43 - 09:34:43 -6612
Portola 09:19:44 -28.1 Dark Up 36.6 316.2 Up 09:04:44 - 09:34:44 -6613
Quincy 09:19:45 -28.1 Dark Up 37.0 316.0 Up 09:04:45 - 09:34:45 -6620
Tonopah 09:19:36 -28.8 Dark Up 33.7 317.8 Up 09:04:36 - 09:34:36 -6634
Yerington 09:19:41 -28.5 Dark Up 35.4 316.9 Up 09:04:41 - 09:34:41 -6634
Carson City 09:19:41 -28.5 Dark Up 35.8 316.7 Up 09:04:41 - 09:34:41 -6643
Hawthorne 09:19:39 -28.8 Dark Up 34.7 317.3 Up 09:04:39 - 09:34:39 -6654
Gardnerville 09:19:42 -28.7 Dark Up 35.6 316.8 Up 09:04:42 - 09:34:42 -6663
Indian Springs 09:19:31 -29.7 Dark Up 31.7 318.8 Up 09:04:31 - 09:34:31 -6692
Patrick 09:19:27 -30.1 Dark Up 29.9 319.6 Low 09:04:27 - 09:34:27 -6703
Henderson 09:19:30 -30.0 Dark Up 31.0 319.1 Up 09:04:30 - 09:34:30 -6705
Beatty 09:19:34 -29.8 Dark Up 32.6 318.4 Up 09:04:34 - 09:34:34 -6714
Lee Vining 09:19:39 -29.5 Dark Up 34.6 317.4 Up 09:04:39 - 09:34:39 -6724
Kingman/Dolan Springs 09:19:27 -30.4 Dark Up 29.8 319.7 Low 09:04:27 - 09:34:27 -6731
Bishop 09:19:38 -29.8 Dark Up 33.8 317.8 Up 09:04:38 - 09:34:38 -6746
Searchlight/Boulder City 09:19:29 -30.4 Dark Up 30.5 319.4 Up 09:04:29 - 09:34:29 -6750
Laughlin/Bullhead City 09:19:28 -30.6 Dark Up 30.1 319.6 Up 09:04:28 - 09:34:28 -6758
Mohave Valley 09:19:28 -30.8 Dark Up 29.9 319.7 Low 09:04:28 - 09:34:28 -6781
Lone Pine 09:19:37 -30.4 Dark Up 33.0 318.2 Up 09:04:37 - 09:34:37 -6797
Lake Havasu City 09:19:28 -31.1 Dark Up 29.5 319.9 Low 09:04:28 - 09:34:28 -6802
Parker 09:19:28 -31.4 Dark Up 29.2 320.0 Low 09:04:28 - 09:34:28 -6829
Blythe 09:19:28 -32.0 Dark Up 28.9 320.1 Low 09:04:28 - 09:34:28 -6887
Yuma 09:19:28 -32.8 Dark Up 28.2 320.4 Low 09:04:28 - 09:34:28 -6965
Calipatria 09:19:31 -32.8 Dark Up 29.0 320.1 Low 09:04:31 - 09:34:31 -6974
Idyllwild 09:19:34 -32.6 Dark Up 30.1 319.7 Up 09:04:34 - 09:34:34 -6980
CPSLO 09:19:43 -32.4 Dark Down 33.4 318.3 Up 09:04:43 - 09:34:43 -7020
Wildwood 09:19:39 -32.9 Dark Down 31.4 319.2 Up 09:04:39 - 09:34:39 -7036

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 528219, (2022/07/24 09:23UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 30.69 112
23Bet Dra      17:30:25.9 +52:18:05  2.8 13.37 103
PPM 035211     15:57:47.1 +54:45:01  4.9  1.21 100
PPM 035245     16:01:09.7 +56:26:22  8.2  0.65  98
PPM 035249     16:01:25.4 +55:31:17  9.2  0.29  99
PPM 035250     16:01:38.3 +56:04:08 10.8  0.28  99
528219         16:02:04.0 +55:47:55 15.4        99
Positions are for J2000

Event circumstances last updated at 2019/07/04 22:03:05 UT

Marc W. Buie, Southwest Research Institute

RECON