RECON: TNO occultation with 523713

Event between (523713) 14JX80 and star GA0920:05182950 with event index number of 1098754

Geocentric closest approach at 2021/03/28 11:18:38 UTC

J2000 position of star is 17:30:56.8 +03:17:14
Equinox of date position of star is 17:31:55.0 +03:16:26
Stellar brightness G=14.5, use SENSEUP=128
Star is 77 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=21.9

[RECON map]
TNO is 36.2 AU from the Sun and 36.0 AU from the Earth.
The TNO is moving 14.2 km/sec on the sky relative to the star, or, 2.0 arcsec/hr.
The 1-sigma error in the time of the event is 99 seconds.
The 1-sigma cross-track error in the shadow position is 2428 km.
The sky-plane scale is 26075.0 km/arcsec.

The TNO has an absolute magnitude Hv=6.2
Diameter=346.7 km assuming a 5% albedo -- 24.5 sec chord
Diameter=141.6 km assuming a 30% albedo -- 10.0 sec chord
Dynamical classification is 5:2EEE+5:2EII
 
 
 
 
 
 

Star training set for 523713, (2021/03/28 11:19UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:42.8 -26:28:38  0.9 33.24  67
60Bet Oph      17:44:31.4 +04:33:36  2.8  3.38  80
PPM 164135     17:32:25.4 +02:42:38  6.5  0.57  77
PPM 164079     17:30:34.8 +02:59:31  8.4  0.45  77
PPM 164132     17:32:14.9 +03:34:39  9.2  0.31  77
523713         17:32:00.5 +03:16:21 14.5        78
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 5.6 km RECON observability=1.0 and success probability=15.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Niwot 11:23:07 -17.1 AT Up 51.9 162.0 Up 11:14:23 - 11:31:50 2134
SwRI 11:23:07 -17.2 AT Up 51.9 161.8 Up 11:14:23 - 11:31:50 2123
Kelowna 11:24:12 -21.6 Dark Up 38.8 147.3 Up 11:15:29 - 11:32:56 1413
Penticton 11:24:11 -21.9 Dark Up 39.1 146.9 Up 11:15:27 - 11:32:54 1386
Summerland 11:24:12 -21.9 Dark Up 39.0 146.8 Up 11:15:29 - 11:32:56 1381
Okanagan Falls 11:24:10 -22.0 Dark Up 39.2 146.8 Up 11:15:27 - 11:32:54 1376
Anarchist Mountain Observatory 11:24:08 -22.1 Dark Up 39.6 146.9 Up 11:15:25 - 11:32:52 1375
Oliver 11:24:09 -22.1 Dark Up 39.4 146.7 Up 11:15:26 - 11:32:53 1370
Oroville 11:24:08 -22.1 Dark Up 39.6 146.7 Up 11:15:25 - 11:32:52 1367
Tonasket 11:24:06 -22.3 Dark Up 39.8 146.6 Up 11:15:23 - 11:32:50 1357
Okanogan 11:24:05 -22.5 Dark Up 40.0 146.3 Up 11:15:22 - 11:32:49 1332
DCO 11:22:42 -24.9 Dark Up 53.6 146.6 Up 11:13:58 - 11:31:25 1320
Brewster 11:24:02 -22.8 Dark Up 40.2 145.9 Up 11:15:19 - 11:32:46 1307
PNWRO 11:23:52 -23.5 Dark Up 42.2 145.9 Up 11:15:09 - 11:32:36 1277
Manson/Chelan 11:24:03 -23.1 Dark Up 40.2 145.4 Up 11:15:19 - 11:32:46 1273
Pasco 11:23:54 -23.5 Dark Up 41.9 145.8 Up 11:15:11 - 11:32:38 1272
Patrick 11:22:45 -25.3 Dark Up 53.0 145.8 Up 11:14:02 - 11:31:29 1269
Entiat 11:24:02 -23.3 Dark Up 40.4 145.2 Up 11:15:19 - 11:32:46 1258
Kingman/Dolan Springs 11:22:43 -25.6 Dark Up 53.1 145.3 Up 11:14:00 - 11:31:27 1246
George/Umatilla 11:23:53 -23.8 Dark Up 42.1 145.3 Up 11:15:09 - 11:32:36 1242
Wenatchee 11:24:00 -23.5 Dark Up 40.5 144.9 Up 11:15:17 - 11:32:44 1240
Ellensburg 11:23:58 -23.9 Dark Up 40.8 144.4 Up 11:15:15 - 11:32:42 1207
Laughlin/Bullhead City 11:22:45 -26.0 Dark Up 52.9 144.6 Up 11:14:01 - 11:31:28 1201
Lake Havasu City 11:22:38 -26.1 Dark Up 53.5 144.4 Up 11:13:54 - 11:31:21 1201
Henderson 11:22:50 -25.9 Dark Up 52.0 144.7 Up 11:14:07 - 11:31:34 1196
Mohave Valley 11:22:43 -26.1 Dark Up 53.1 144.3 Up 11:14:00 - 11:31:27 1193
Parker 11:22:36 -26.2 Dark Up 53.8 144.1 Up 11:13:53 - 11:31:20 1191
Toppenish/White Swan 11:23:55 -24.1 Dark Up 41.3 144.3 Up 11:15:12 - 11:32:39 1189
Yakima 11:23:57 -24.1 Dark Up 41.1 144.2 Up 11:15:13 - 11:32:40 1187
Searchlight/Boulder City 11:22:47 -26.1 Dark Up 52.5 144.3 Up 11:14:03 - 11:31:30 1182
Indian Springs 11:22:54 -26.1 Dark Up 51.2 144.1 Up 11:14:11 - 11:31:38 1157
Blythe 11:22:34 -26.6 Dark Up 54.1 143.2 Up 11:13:51 - 11:31:18 1149
Goldendale 11:23:52 -24.7 Dark Up 41.6 143.5 Up 11:15:09 - 11:32:36 1136
Yuma 11:22:29 -27.1 Dark Up 54.8 142.4 Up 11:13:46 - 11:31:13 1115
The Dalles 11:23:51 -25.0 Dark Up 41.6 142.9 Up 11:15:08 - 11:32:35 1100
Maupin 11:23:49 -25.2 Dark Up 42.0 142.8 Up 11:15:05 - 11:32:32 1089
Tonopah 11:23:05 -26.5 Dark Up 49.3 143.1 Up 11:14:21 - 11:31:48 1086
Beatty 11:22:56 -26.8 Dark Up 50.5 142.8 Up 11:14:12 - 11:31:39 1080
Madras/Culver 11:23:46 -25.5 Dark Up 42.4 142.4 Up 11:15:03 - 11:32:30 1061
Calipatria 11:22:33 -27.6 Dark Up 54.0 141.4 Up 11:13:49 - 11:31:16 1052
Redmond 11:23:44 -25.8 Dark Up 42.7 142.1 Up 11:15:01 - 11:32:28 1042
Bend 11:23:44 -26.0 Dark Up 42.8 141.8 Up 11:15:00 - 11:32:27 1023
Paisley 11:23:35 -26.3 Dark Up 44.2 142.0 Up 11:14:52 - 11:32:19 1018
North Lake 11:23:38 -26.2 Dark Up 43.6 141.8 Up 11:14:54 - 11:32:21 1016
Sisters 11:23:45 -26.0 Dark Up 42.5 141.7 Up 11:15:01 - 11:32:28 1015
Lakeview 11:23:31 -26.5 Dark Up 44.7 141.9 Up 11:14:47 - 11:32:14 1011
Oregon Observatory 11:23:43 -26.2 Dark Up 42.8 141.6 Up 11:14:59 - 11:32:26 1006
Cedarville 11:23:27 -26.7 Dark Up 45.2 141.7 Up 11:14:44 - 11:32:11 996
La Pine/Gilchrist 11:23:41 -26.3 Dark Up 43.0 141.4 Up 11:14:58 - 11:32:25 992
Hawthorne 11:23:10 -27.3 Dark Up 48.3 141.6 Up 11:14:26 - 11:31:53 992
Idyllwild 11:22:36 -28.2 Dark Up 52.9 140.3 Up 11:13:53 - 11:31:20 971
Yerington 11:23:11 -27.4 Dark Up 47.7 141.2 Up 11:14:28 - 11:31:55 969
Bishop 11:23:01 -27.7 Dark Up 49.3 141.0 Up 11:14:17 - 11:31:44 966
Lone Pine 11:22:57 -27.8 Dark Up 50.1 140.9 Up 11:14:14 - 11:31:41 964
Reno 11:23:16 -27.5 Dark Up 46.9 140.8 Up 11:14:32 - 11:31:59 940
Lee Vining 11:23:06 -27.9 Dark Up 48.5 140.5 Up 11:14:22 - 11:31:49 931
Carson City 11:23:14 -27.7 Dark Up 47.2 140.5 Up 11:14:30 - 11:31:57 927
Gardnerville 11:23:12 -27.8 Dark Up 47.4 140.4 Up 11:14:29 - 11:31:56 921
Tulelake 11:23:32 -27.3 Dark Up 44.3 140.3 Up 11:14:48 - 11:32:15 918
Chiloquin 11:23:34 -27.2 Dark Up 43.7 140.3 Up 11:14:51 - 11:32:18 917
Susanville 11:23:21 -27.6 Dark Up 45.9 140.3 Up 11:14:38 - 11:32:05 913
Klamath Falls 11:23:33 -27.3 Dark Up 44.0 140.1 Up 11:14:49 - 11:32:16 908
Portola 11:23:18 -27.8 Dark Up 46.4 140.1 Up 11:14:35 - 11:32:02 902
Gimple 11:23:20 -27.9 Dark Up 46.0 139.9 Up 11:14:36 - 11:32:03 885
Fall River/Burney 11:23:26 -27.7 Dark Up 45.0 139.8 Up 11:14:43 - 11:32:10 885
Greenville 11:23:21 -28.0 Dark Up 45.9 139.8 Up 11:14:37 - 11:32:04 879
Quincy 11:23:19 -28.1 Dark Up 46.1 139.6 Up 11:14:35 - 11:32:02 871
Wildwood 11:22:40 -29.4 Dark Up 51.6 138.0 Up 11:13:56 - 11:31:23 826
CPSLO 11:22:49 -30.3 Dark Up 49.6 136.4 Up 11:14:06 - 11:31:33 704

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 523713, (2021/03/28 11:19UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 33.24  67
60Bet Oph      17:43:28.3 +04:34:05  2.8  3.38  80
PPM 164135     17:31:21.4 +02:43:30  6.5  0.57  77
PPM 164079     17:29:31.0 +03:00:27  8.4  0.45  77
PPM 164132     17:31:11.3 +03:35:31  9.2  0.31  77
523713         17:30:56.8 +03:17:14 14.5        77
Positions are for J2000

Event circumstances last updated at 2019/05/31 22:33:27 UT

Marc W. Buie, Southwest Research Institute

RECON