RECON: TNO occultation with 535168

Event between (535168) 14XU40 and star GA1120:01144161 with event index number of 1617615

Geocentric closest approach at 2020/10/25 04:51:52 UTC

J2000 position of star is 05:23:44.7 +23:00:24
Equinox of date position of star is 05:24:59.2 +23:01:27
Stellar brightness G=16.9, use SENSEUP=128
Star is 120 degrees from the moon. Moon is 67% illuminated.
TNO apparent brightness V=25.4

[RECON map]
TNO is 34.1 AU from the Sun and 33.4 AU from the Earth.
The TNO is moving 14.4 km/sec on the sky relative to the star, or, 2.1 arcsec/hr.
The 1-sigma error in the time of the event is 303 seconds.
The 1-sigma cross-track error in the shadow position is 1883 km.
The sky-plane scale is 24246.1 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=229.1 km assuming a 5% albedo -- 4.2 sec chord
Diameter=93.5 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 535168, (2020/10/25 04:52UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:07.1 +16:32:58  0.8 12.98 108
Alnath         05:27:36.6 +28:37:23  1.6  5.63 121
109 Tau        05:20:31.8 +22:06:58  4.9  1.38 119
PPM 094385     05:29:11.2 +23:18:31  8.4  1.00 121
PPM 094343     05:26:06.4 +22:59:21  9.7  0.26 120
535168         05:25:00.4 +23:01:28 16.9       120
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 3.0 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.0 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)
Victoria 04:56:18 -37.9 Dark Up 13.1 70.0 Really Low 04:41:18 - 05:11:18 11090
Clarence Fulton 04:56:10 -39.3 Dark Up 16.2 73.3 Really Low 04:41:10 - 05:11:10 11074
Peachland 04:56:13 -39.3 Dark Up 15.7 72.8 Really Low 04:41:13 - 05:11:13 11058
Kelowna 04:56:12 -39.4 Dark Up 16.0 73.1 Really Low 04:41:12 - 05:11:12 11056
Summerland 04:56:14 -39.4 Dark Up 15.8 72.8 Really Low 04:41:14 - 05:11:14 11047
Penticton 04:56:15 -39.5 Dark Up 15.8 72.9 Really Low 04:41:15 - 05:11:15 11040
Oliver 04:56:17 -39.7 Dark Up 15.7 72.8 Really Low 04:41:17 - 05:11:17 11020
Anarchist Mountain Observatory 04:56:18 -39.9 Dark Up 15.8 72.9 Really Low 04:41:18 - 05:11:18 11005
Tonasket 04:56:20 -40.1 Dark Up 15.7 72.8 Really Low 04:41:20 - 05:11:20 10989
Okanogan 04:56:22 -40.2 Dark Up 15.5 72.6 Really Low 04:41:22 - 05:11:22 10973
Brewster 04:56:24 -40.2 Dark Up 15.3 72.4 Really Low 04:41:24 - 05:11:24 10963
Manson/Chelan 04:56:25 -40.1 Dark Up 15.0 72.1 Really Low 04:41:25 - 05:11:25 10961
Entiat 04:56:26 -40.2 Dark Up 14.9 72.0 Really Low 04:41:26 - 05:11:26 10950
Wenatchee 04:56:28 -40.2 Dark Up 14.7 71.9 Really Low 04:41:28 - 05:11:28 10938
Ellensburg 04:56:32 -40.3 Dark Up 14.5 71.6 Really Low 04:41:32 - 05:11:32 10920
Yakima 04:56:33 -40.5 Dark Up 14.3 71.5 Really Low 04:41:33 - 05:11:33 10895
Toppenish/White Swan 04:56:35 -40.7 Dark Up 14.4 71.6 Really Low 04:41:35 - 05:11:35 10877
Goldendale 04:56:38 -40.8 Dark Up 13.9 71.2 Really Low 04:41:38 - 05:11:38 10856
The Dalles 04:56:39 -40.6 Dark Up 13.6 70.9 Really Low 04:41:39 - 05:11:39 10852
Pasco 04:56:37 -41.6 Dark Up 15.2 72.4 Really Low 04:41:37 - 05:11:37 10832
Maupin 04:56:41 -40.9 Dark Up 13.5 70.9 Really Low 04:41:41 - 05:11:41 10823
PNWRO 04:56:37 -41.8 Dark Up 15.2 72.5 Really Low 04:41:37 - 05:11:37 10810
Sisters 04:56:46 -41.0 Dark Up 12.9 70.4 Really Low 04:41:46 - 05:11:46 10783
Redmond 04:56:46 -41.3 Dark Up 13.2 70.6 Really Low 04:41:46 - 05:11:46 10769
Bend 04:56:48 -41.3 Dark Up 13.0 70.5 Really Low 04:41:48 - 05:11:48 10760
Oregon Observatory 04:56:48 -41.3 Dark Up 12.9 70.4 Really Low 04:41:48 - 05:11:48 10753
La Pine/Gilchrist 04:56:49 -41.4 Dark Up 12.8 70.3 Really Low 04:41:49 - 05:11:49 10741
North Lake 04:56:53 -42.0 Dark Up 13.1 70.6 Really Low 04:41:53 - 05:11:53 10694
Klamath Falls 04:56:59 -41.8 Dark Up 12.1 69.8 Really Low 04:41:59 - 05:11:59 10655
Paisley 04:56:56 -42.5 Dark Up 13.1 70.7 Really Low 04:41:56 - 05:11:56 10647
Lakeview 04:56:59 -42.8 Dark Up 13.1 70.7 Really Low 04:41:59 - 05:11:59 10607
Fall River/Burney 04:57:05 -42.6 Dark Up 12.0 69.8 Really Low 04:42:05 - 05:12:05 10563
Cedarville 04:57:02 -43.2 Dark Up 13.0 70.7 Really Low 04:42:02 - 05:12:02 10557
Susanville 04:57:08 -43.4 Dark Up 12.3 70.2 Really Low 04:42:08 - 05:12:08 10495
Greenville 04:57:10 -43.3 Dark Up 12.0 69.9 Really Low 04:42:10 - 05:12:10 10486
Gimple 04:57:12 -43.4 Dark Up 12.1 70.0 Really Low 04:42:12 - 05:12:12 10483
Quincy 04:57:12 -43.4 Dark Up 12.0 69.9 Really Low 04:42:12 - 05:12:12 10471
Portola 04:57:12 -43.8 Dark Up 12.3 70.2 Really Low 04:42:12 - 05:12:12 10447
Reno 04:57:15 -44.4 Dark Up 12.7 70.5 Really Low 04:42:15 - 05:12:15 10407
Carson City 04:57:16 -44.5 Dark Up 12.6 70.4 Really Low 04:42:16 - 05:12:16 10380
Gardnerville 04:57:18 -44.7 Dark Up 12.5 70.4 Really Low 04:42:18 - 05:12:18 10361
Yerington 04:57:18 -45.1 Dark Up 13.0 70.8 Really Low 04:42:18 - 05:12:18 10345
Hawthorne 04:57:20 -45.7 Dark Up 13.2 71.0 Really Low 04:42:20 - 05:12:20 10294
Lee Vining 04:57:23 -45.6 Dark Up 12.7 70.6 Really Low 04:42:23 - 05:12:23 10269
Tonopah 04:57:24 -46.9 Dark Up 14.1 71.7 Really Low 04:42:24 - 05:12:24 10211
Bishop 04:57:28 -46.3 Dark Up 13.0 70.9 Really Low 04:42:28 - 05:12:28 10200
CPSLO 04:57:36 -45.5 Dark Up 10.6 69.3 Really Low 04:42:36 - 05:12:36 10123
Beatty 04:57:29 -47.7 Dark Up 14.1 71.6 Really Low 04:42:29 - 05:12:29 10108
Indian Springs 04:57:31 -48.6 Dark Up 14.9 72.1 Really Low 04:42:31 - 05:12:31 10045
Henderson 04:57:34 -49.4 Dark Up 15.2 72.4 Really Low 04:42:34 - 05:12:34 9980
Wildwood 04:57:42 -47.5 Dark Up 11.8 70.1 Really Low 04:42:42 - 05:12:42 9957
Niwot 04:57:07 -53.4 Dark Up 23.6 79.1 Low 04:42:07 - 05:12:07 9955
SwRI 04:57:09 -53.5 Dark Up 23.5 79.0 Low 04:42:09 - 05:12:09 9949
Searchlight/Boulder City 04:57:37 -49.7 Dark Up 15.1 72.3 Really Low 04:42:37 - 05:12:37 9933
Laughlin/Bullhead City 04:57:38 -50.1 Dark Up 15.3 72.4 Really Low 04:42:38 - 05:12:38 9897
Patrick 04:57:37 -50.5 Dark Up 15.9 72.8 Really Low 04:42:37 - 05:12:37 9891
Kingman/Dolan Springs 04:57:39 -50.5 Dark Up 15.7 72.6 Really Low 04:42:39 - 05:12:39 9880
Mohave Valley 04:57:40 -50.2 Dark Up 15.2 72.3 Really Low 04:42:40 - 05:12:40 9875
Idyllwild 04:57:46 -49.1 Dark Up 13.2 71.0 Really Low 04:42:46 - 05:12:46 9861
DCO 04:57:38 -51.2 Dark Up 16.4 73.1 Really Low 04:42:38 - 05:12:38 9841
Lake Havasu City 04:57:42 -50.6 Dark Up 15.3 72.3 Really Low 04:42:42 - 05:12:42 9834
Parker 04:57:43 -50.8 Dark Up 15.2 72.3 Really Low 04:42:43 - 05:12:43 9805
Blythe 04:57:47 -50.8 Dark Up 14.8 72.0 Really Low 04:42:47 - 05:12:47 9774
Calipatria 04:57:48 -50.3 Dark Up 13.9 71.4 Really Low 04:42:48 - 05:12:48 9768
Yuma 04:57:51 -51.1 Dark Up 14.5 71.7 Really Low 04:42:51 - 05:12:51 9700
George/Scottsdale 04:57:45 -52.8 Dark Up 17.0 73.3 Really Low 04:42:45 - 05:12:45 9682

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 535168, (2020/10/25 04:52UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 12.98 108
Alnath         05:26:17.5 +28:36:23  1.6  5.63 121
109 Tau        05:19:16.6 +22:05:46  4.9  1.38 119
PPM 094385     05:27:55.4 +23:17:34  8.4  1.00 121
PPM 094343     05:24:50.7 +22:58:19  9.7  0.26 120
535168         05:23:44.7 +23:00:24 16.9       120
Positions are for J2000

Event circumstances last updated at 2020/06/21 22:20:13 UT

Marc W. Buie, Southwest Research Institute

RECON