RECON: TNO occultation with 02GW32

Event between 02GW32 and star GA0640:08122417 with event index number of 258462

Geocentric closest approach at 2020/05/16 06:25:16 UTC

J2000 position of star is 16:39:19.9 -24:58:57
Equinox of date position of star is 16:40:33.7 -25:01:15
Stellar brightness G=15.0, use SENSEUP=128
Star is 93 degrees from the moon. Moon is 34% illuminated.
TNO apparent brightness V=25.7

[RECON map]
TNO is 37.2 AU from the Sun and 36.2 AU from the Earth.
The TNO is moving 23.5 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 636 seconds.
The 1-sigma cross-track error in the shadow position is 1551 km.
The sky-plane scale is 26258.2 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=212.8 km assuming a 5% albedo -- 2.6 sec chord
Diameter=86.9 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is 5:4E
 
 
 
 
 
 

Star training set for 02GW32, (2020/05/16 06:25UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:39.6 -26:28:32  0.9  2.66  94
23Tau Sco      16:37:09.3 -28:15:24  2.8  3.32  93
22 Sco         16:31:27.0 -25:09:30  4.5  2.07  94
PPM 265814     16:43:23.7 -24:51:24  8.4  0.66  92
PPM 265776     16:40:55.6 -25:02:50  9.4  0.08  92
02GW32         16:40:34.4 -25:01:17 15.0        92
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 1.4 sigma about the mid-time.
The median site spacing is 9.3 km RECON observability=0.3 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)
Clarence Fulton 06:27:35 -18.0 AT Down 7.7 145.9 Really Low 06:12:35 - 06:42:35 9748
Kelowna 06:27:36 -18.3 Dark Down 7.9 145.7 Really Low 06:12:36 - 06:42:36 9727
Peachland 06:27:36 -18.3 Dark Down 7.9 145.5 Really Low 06:12:36 - 06:42:36 9715
Summerland 06:27:36 -18.5 Dark Down 8.1 145.5 Really Low 06:12:36 - 06:42:36 9711
Penticton 06:27:37 -18.6 Dark Down 8.2 145.6 Really Low 06:12:37 - 06:42:37 9711
Oliver 06:27:37 -18.9 Dark Down 8.5 145.6 Really Low 06:12:37 - 06:42:37 9695
Anarchist Mountain Observatory 06:27:37 -19.1 Dark Down 8.7 145.8 Really Low 06:12:37 - 06:42:37 9693
Tonasket 06:27:38 -19.4 Dark Down 8.9 145.7 Really Low 06:12:38 - 06:42:38 9677
Okanogan 06:27:39 -19.7 Dark Down 9.1 145.5 Really Low 06:12:39 - 06:42:39 9657
Brewster 06:27:40 -19.9 Dark Down 9.3 145.3 Really Low 06:12:40 - 06:42:40 9639
Niwot 06:27:11 -30.3 Dark Down 21.2 156.9 Low 06:12:11 - 06:42:11 9632
SwRI 06:27:12 -30.4 Dark Down 21.3 156.8 Low 06:12:12 - 06:42:12 9624
Manson/Chelan 06:27:41 -20.0 Dark Down 9.3 145.0 Really Low 06:12:41 - 06:42:41 9619
Entiat 06:27:42 -20.2 Dark Down 9.5 144.9 Really Low 06:12:42 - 06:42:42 9607
Wenatchee 06:27:42 -20.4 Dark Down 9.6 144.8 Really Low 06:12:42 - 06:42:42 9592
Pasco 06:27:42 -21.8 Dark Down 11.0 145.7 Really Low 06:12:42 - 06:42:42 9570
Ellensburg 06:27:43 -20.7 Dark Down 9.9 144.6 Really Low 06:12:43 - 06:42:43 9566
PNWRO 06:27:41 -22.0 Dark Down 11.3 145.9 Really Low 06:12:41 - 06:42:41 9564
Victoria 06:27:47 -18.5 Dark Down 7.5 142.4 Really Low 06:12:47 - 06:42:47 9559
Yakima 06:27:44 -21.1 Dark Down 10.2 144.6 Really Low 06:12:44 - 06:42:44 9546
Toppenish/White Swan 06:27:44 -21.3 Dark Down 10.4 144.7 Really Low 06:12:44 - 06:42:44 9540
Goldendale 06:27:47 -21.7 Dark Down 10.7 144.3 Really Low 06:12:47 - 06:42:47 9500
The Dalles 06:27:48 -21.8 Dark Down 10.8 143.9 Really Low 06:12:48 - 06:42:48 9478
Maupin 06:27:49 -22.2 Dark Down 11.1 144.0 Really Low 06:12:49 - 06:42:49 9460
Redmond 06:27:50 -23.0 Dark Down 11.8 143.8 Really Low 06:12:50 - 06:42:50 9410
Sisters 06:27:51 -22.9 Dark Down 11.7 143.5 Really Low 06:12:51 - 06:42:51 9400
Bend 06:27:51 -23.2 Dark Down 12.0 143.7 Really Low 06:12:51 - 06:42:51 9395
Oregon Observatory 06:27:51 -23.3 Dark Down 12.0 143.5 Really Low 06:12:51 - 06:42:51 9382
La Pine/Gilchrist 06:27:52 -23.5 Dark Down 12.2 143.5 Really Low 06:12:52 - 06:42:52 9369
North Lake 06:27:51 -24.0 Dark Down 12.8 143.9 Really Low 06:12:51 - 06:42:51 9363
Paisley 06:27:51 -24.7 Dark Down 13.4 144.1 Really Low 06:12:51 - 06:42:51 9344
Lakeview 06:27:52 -25.2 Dark Down 13.9 144.2 Really Low 06:12:52 - 06:42:52 9322
Cedarville 06:27:52 -25.8 Dark Down 14.5 144.3 Really Low 06:12:52 - 06:42:52 9290
Klamath Falls 06:27:55 -24.7 Dark Down 13.2 143.1 Really Low 06:12:55 - 06:42:55 9280
Fall River/Burney 06:27:56 -25.9 Dark Down 14.3 143.2 Really Low 06:12:56 - 06:42:56 9224
Susanville 06:27:56 -26.7 Dark Down 15.2 143.7 Really Low 06:12:56 - 06:42:56 9211
Gimple 06:27:56 -26.9 Dark Down 15.3 143.5 Really Low 06:12:56 - 06:42:56 9187
Reno 06:27:55 -27.8 Dark Down 16.3 144.2 Really Low 06:12:55 - 06:42:55 9185
Greenville 06:27:57 -26.9 Dark Down 15.3 143.4 Really Low 06:12:57 - 06:42:57 9185
Portola 06:27:56 -27.3 Dark Down 15.8 143.8 Really Low 06:12:56 - 06:42:56 9181
Tonopah 06:27:49 -29.9 Dark Down 18.6 146.1 Really Low 06:12:49 - 06:42:49 9178
Quincy 06:27:57 -27.1 Dark Down 15.4 143.4 Really Low 06:12:57 - 06:42:57 9173
Yerington 06:27:54 -28.5 Dark Down 17.0 144.7 Really Low 06:12:54 - 06:42:54 9173
Carson City 06:27:54 -28.1 Dark Down 16.6 144.2 Really Low 06:12:54 - 06:42:54 9165
Hawthorne 06:27:52 -29.1 Dark Down 17.6 145.0 Really Low 06:12:52 - 06:42:52 9161
Gardnerville 06:27:55 -28.3 Dark Down 16.8 144.2 Really Low 06:12:55 - 06:42:55 9151
Indian Springs 06:27:46 -31.7 Dark Down 20.5 147.1 Low 06:12:46 - 06:42:46 9134
Henderson 06:27:46 -32.4 Dark Down 21.3 147.6 Low 06:12:46 - 06:42:46 9121
Beatty 06:27:50 -31.1 Dark Down 19.8 146.3 Really Low 06:12:50 - 06:42:50 9120
DCO 06:27:41 -33.8 Dark Down 22.9 148.9 Low 06:12:41 - 06:42:41 9119
Patrick 06:27:43 -33.3 Dark Down 22.3 148.4 Low 06:12:43 - 06:42:43 9117
Lee Vining 06:27:54 -29.4 Dark Down 17.9 144.5 Really Low 06:12:54 - 06:42:54 9112
Bishop 06:27:54 -30.2 Dark Down 18.7 145.0 Really Low 06:12:54 - 06:42:54 9098
Kingman/Dolan Springs 06:27:44 -33.5 Dark Down 22.4 148.2 Low 06:12:44 - 06:42:44 9097
Searchlight/Boulder City 06:27:45 -33.0 Dark Down 21.8 147.5 Low 06:12:45 - 06:42:45 9087
Laughlin/Bullhead City 06:27:45 -33.3 Dark Down 22.2 147.7 Low 06:12:45 - 06:42:45 9079
George/Scottsdale 06:27:38 -35.4 Dark Down 24.6 149.8 Low 06:12:38 - 06:42:38 9069
Mohave Valley 06:27:46 -33.6 Dark Down 22.4 147.7 Low 06:12:46 - 06:42:46 9061
Lake Havasu City 06:27:44 -34.0 Dark Down 22.9 147.8 Low 06:12:44 - 06:42:44 9043
Parker 06:27:45 -34.4 Dark Down 23.2 147.8 Low 06:12:45 - 06:42:45 9021
Blythe 06:27:47 -34.8 Dark Down 23.5 147.4 Low 06:12:47 - 06:42:47 8978
Idyllwild 06:27:54 -34.1 Dark Down 22.5 145.6 Low 06:12:54 - 06:42:54 8918
Calipatria 06:27:50 -35.0 Dark Down 23.5 146.5 Low 06:12:50 - 06:42:50 8915
Yuma 06:27:48 -35.7 Dark Down 24.3 147.1 Low 06:12:48 - 06:42:48 8915
CPSLO 06:28:03 -31.4 Dark Down 19.3 142.8 Really Low 06:13:03 - 06:43:03 8891
Wildwood 06:27:58 -33.2 Dark Down 21.3 144.2 Low 06:12:58 - 06:42:58 8880

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 02GW32, (2020/05/16 06:25UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  2.66  94
23Tau Sco      16:35:52.9 -28:12:58  2.8  3.32  93
22 Sco         16:30:12.5 -25:06:55  4.5  2.07  94
PPM 265814     16:42:09.2 -24:49:09  8.4  0.66  92
PPM 265776     16:39:41.0 -25:00:31  9.4  0.08  92
02GW32         16:39:19.9 -24:58:57 15.0        93
Positions are for J2000

Event circumstances last updated at 2020/03/06 21:41:23 UT

Marc W. Buie, Southwest Research Institute

RECON