RECON: TNO occultation with 01KG76

Event between 01KG76 and star GA0660:16856550 with event index number of 250353

Geocentric closest approach at 2020/03/04 11:47:37 UTC

J2000 position of star is 17:40:24.6 -23:03:04
Equinox of date position of star is 17:41:38.1 -23:03:37
Stellar brightness G=14.2, use SENSEUP=64
Star is 172 degrees from the moon. Moon is 67% illuminated.
TNO apparent brightness V=27.1

[RECON map]
TNO is 49.8 AU from the Sun and 50.0 AU from the Earth.
The TNO is moving 10.4 km/sec on the sky relative to the star, or, 1.0 arcsec/hr.
The 1-sigma error in the time of the event is 2635 seconds.
The 1-sigma cross-track error in the shadow position is 3662 km.
The sky-plane scale is 36254.0 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=311.9 km assuming a 5% albedo -- 5.8 sec chord
Diameter=127.3 km assuming a 30% albedo -- 2.4 sec chord
Dynamical classification is ERR2LARGE
 
 
 
 
 
 

Star training set for 01KG76, (2020/03/04 11:48UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:38.9 -26:28:30  0.9 16.46 155
35Eta Oph      17:11:32.2 -15:44:55  2.6 10.18 163
PPM 267109     17:39:57.7 -21:55:22  6.4  1.20 171
PPM 267163     17:43:33.8 -23:21:26  7.7  0.53 172
PPM 267129     17:41:09.1 -23:04:16  8.7  0.11 171
01KG76         17:41:38.1 -23:03:37 14.2       172
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 0.3 sigma about the mid-time.
The median site spacing is 43.8 km RECON observability=0.1 and success probability=4.7%
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 11:42:34 -27.5 Dark Down 6.2 138.2 Really Low 11:27:34 - 11:57:34 3152
Kelowna 11:42:30 -27.7 Dark Down 6.4 138.0 Really Low 11:27:30 - 11:57:30 3131
Peachland 11:42:29 -28.0 Dark Down 6.3 137.8 Really Low 11:27:29 - 11:57:29 3119
Summerland 11:42:28 -28.0 Dark Down 6.5 137.8 Really Low 11:27:28 - 11:57:28 3114
Penticton 11:42:28 -27.9 Dark Down 6.6 137.9 Really Low 11:27:28 - 11:57:28 3114
Oliver 11:42:26 -28.1 Dark Down 6.8 137.9 Really Low 11:27:26 - 11:57:26 3097
Anarchist Mountain Observatory 11:42:26 -28.1 Dark Down 7.0 138.0 Really Low 11:27:26 - 11:57:26 3094
Tonasket 11:42:24 -28.2 Dark Down 7.2 137.9 Really Low 11:27:24 - 11:57:24 3078
Okanogan 11:42:21 -28.5 Dark Down 7.4 137.8 Really Low 11:27:21 - 11:57:21 3058
Brewster 11:42:19 -28.7 Dark Down 7.5 137.6 Really Low 11:27:19 - 11:57:19 3041
Manson/Chelan 11:42:15 -29.0 Dark Down 7.5 137.3 Really Low 11:27:15 - 11:57:15 3022
Entiat 11:42:14 -29.2 Dark Down 7.6 137.2 Really Low 11:27:14 - 11:57:14 3009
Wenatchee 11:42:11 -29.4 Dark Down 7.8 137.1 Really Low 11:27:11 - 11:57:11 2994
Victoria 11:42:03 -30.7 Dark Down 5.5 134.7 Really Low 11:27:03 - 11:57:03 2976
Ellensburg 11:42:08 -29.7 Dark Down 7.9 136.8 Really Low 11:27:08 - 11:57:08 2969
Pasco 11:42:11 -29.1 Dark Down 9.2 137.9 Really Low 11:27:11 - 11:57:11 2964
PNWRO 11:42:11 -29.0 Dark Down 9.5 138.1 Really Low 11:27:11 - 11:57:11 2958
Niwot 11:43:11 -20.9 Dark Down 20.2 148.9 Low 11:28:11 - 11:58:11 2950
Yakima 11:42:07 -29.9 Dark Down 8.2 136.8 Really Low 11:27:07 - 11:57:07 2947
SwRI 11:43:08 -21.0 Dark Down 20.3 148.8 Low 11:28:08 - 11:58:08 2942
Toppenish/White Swan 11:42:05 -29.9 Dark Down 8.5 136.9 Really Low 11:27:05 - 11:57:05 2940
Goldendale 11:42:00 -30.4 Dark Down 8.7 136.5 Really Low 11:27:00 - 11:57:00 2901
The Dalles 11:41:57 -30.7 Dark Down 8.6 136.1 Really Low 11:26:57 - 11:56:57 2880
Maupin 11:41:55 -30.8 Dark Down 9.0 136.2 Really Low 11:26:55 - 11:56:55 2861
Redmond 11:41:49 -31.3 Dark Down 9.6 136.0 Really Low 11:26:49 - 11:56:49 2810
Sisters 11:41:48 -31.5 Dark Down 9.4 135.7 Really Low 11:26:48 - 11:56:48 2801
Bend 11:41:47 -31.5 Dark Down 9.7 135.8 Really Low 11:26:47 - 11:56:47 2794
Oregon Observatory 11:41:45 -31.6 Dark Down 9.7 135.7 Really Low 11:26:45 - 11:56:45 2781
La Pine/Gilchrist 11:41:44 -31.8 Dark Down 9.8 135.6 Really Low 11:26:44 - 11:56:44 2768
North Lake 11:41:45 -31.5 Dark Down 10.5 136.1 Really Low 11:26:45 - 11:56:45 2759
Paisley 11:41:45 -31.5 Dark Down 11.0 136.3 Really Low 11:26:45 - 11:56:45 2737
Lakeview 11:41:43 -31.6 Dark Down 11.5 136.3 Really Low 11:26:43 - 11:56:43 2713
Cedarville 11:41:40 -31.7 Dark Down 12.1 136.4 Really Low 11:26:40 - 11:56:40 2679
Klamath Falls 11:41:36 -32.6 Dark Down 10.7 135.2 Really Low 11:26:36 - 11:56:36 2678
Fall River/Burney 11:41:31 -32.8 Dark Down 11.7 135.3 Really Low 11:26:31 - 11:56:31 2617
Susanville 11:41:33 -32.5 Dark Down 12.6 135.8 Really Low 11:26:33 - 11:56:33 2599
Gimple 11:41:29 -32.8 Dark Down 12.7 135.6 Really Low 11:26:29 - 11:56:29 2577
Greenville 11:41:28 -32.8 Dark Down 12.6 135.5 Really Low 11:26:28 - 11:56:28 2574
Reno 11:41:32 -32.2 Dark Down 13.7 136.3 Really Low 11:26:32 - 11:56:32 2569
Portola 11:41:29 -32.6 Dark Down 13.1 135.8 Really Low 11:26:29 - 11:56:29 2568
Quincy 11:41:28 -32.9 Dark Down 12.8 135.5 Really Low 11:26:28 - 11:56:28 2562
Yerington 11:41:34 -31.9 Dark Down 14.4 136.7 Really Low 11:26:34 - 11:56:34 2552
Carson City 11:41:30 -32.3 Dark Down 13.9 136.3 Really Low 11:26:30 - 11:56:30 2547
Tonopah 11:41:40 -30.8 Dark Down 16.1 138.1 Really Low 11:26:40 - 11:56:40 2546
Hawthorne 11:41:35 -31.7 Dark Down 15.0 137.1 Really Low 11:26:35 - 11:56:35 2537
Gardnerville 11:41:31 -32.4 Dark Down 14.1 136.3 Really Low 11:26:31 - 11:56:31 2533
Indian Springs 11:41:44 -30.0 Dark Down 18.1 139.0 Really Low 11:26:44 - 11:56:44 2491
Lee Vining 11:41:28 -32.3 Dark Down 15.2 136.6 Really Low 11:26:28 - 11:56:28 2488
Beatty 11:41:39 -30.8 Dark Down 17.2 138.2 Really Low 11:26:39 - 11:56:39 2483
Henderson 11:41:45 -29.6 Dark Down 18.8 139.5 Really Low 11:26:45 - 11:56:45 2474
Bishop 11:41:30 -31.9 Dark Down 16.0 137.0 Really Low 11:26:30 - 11:56:30 2469
Patrick 11:41:51 -28.9 Dark Down 19.9 140.2 Really Low 11:26:51 - 11:56:51 2462
DCO 11:41:54 -28.4 Dark Down 20.5 140.8 Low 11:26:54 - 11:56:54 2461
Kingman/Dolan Springs 11:41:48 -29.1 Dark Down 20.0 140.0 Really Low 11:26:48 - 11:56:48 2443
Searchlight/Boulder City 11:41:44 -29.7 Dark Down 19.3 139.4 Really Low 11:26:44 - 11:56:44 2438
Laughlin/Bullhead City 11:41:45 -29.5 Dark Down 19.7 139.6 Really Low 11:26:45 - 11:56:45 2427
Mohave Valley 11:41:44 -29.6 Dark Down 19.9 139.5 Really Low 11:26:44 - 11:56:44 2409
George/Scottsdale 11:41:58 -27.6 Dark Down 22.3 141.5 Low 11:26:58 - 11:56:58 2401
Lake Havasu City 11:41:44 -29.5 Dark Down 20.4 139.6 Low 11:26:44 - 11:56:44 2389
Parker 11:41:43 -29.6 Dark Down 20.7 139.6 Low 11:26:43 - 11:56:43 2366
Blythe 11:41:39 -29.9 Dark Down 20.9 139.2 Low 11:26:39 - 11:56:39 2322
Idyllwild 11:41:25 -31.7 Dark Down 19.6 137.5 Really Low 11:26:25 - 11:56:25 2273
CPSLO 11:41:08 -34.4 Dark Down 16.2 134.8 Really Low 11:26:08 - 11:56:08 2268
Calipatria 11:41:31 -30.8 Dark Down 20.7 138.3 Low 11:26:31 - 11:56:31 2262
Yuma 11:41:35 -30.2 Dark Down 21.5 138.9 Low 11:26:35 - 11:56:35 2257
Wildwood 11:41:15 -33.1 Dark Down 18.2 136.1 Really Low 11:26:15 - 11:56:15 2244

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 01KG76, (2020/03/04 11:48UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 16.46 155
35Eta Oph      17:10:22.7 -15:43:29  2.6 10.18 163
PPM 267109     17:38:44.8 -21:54:46  6.4  1.20 171
PPM 267163     17:42:20.2 -23:20:56  7.7  0.53 172
PPM 267129     17:39:55.6 -23:03:42  8.7  0.11 171
01KG76         17:40:24.6 -23:03:04 14.2       171
Positions are for J2000

Event circumstances last updated at 2020/03/03 20:46:40 UT

Marc W. Buie, Southwest Research Institute

RECON