RECON: TNO occultation with 11UQ62

Event between 11UQ62 and star UC4-557-010875 with event index number of 315095

Geocentric closest approach at 2020/03/07 02:12:10 UTC

J2000 position of star is 04:45:49.9 +21:16:51
Equinox of date position of star is 04:46:59.3 +21:18:54
Stellar brightness R=16.5, use SENSEUP=128
Star is 57 degrees from the moon. Moon is 90% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 15.9 AU from the Sun and 16.0 AU from the Earth.
The TNO is moving 11.0 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 89 seconds.
The 1-sigma cross-track error in the shadow position is 597 km.
The sky-plane scale is 11578.2 km/arcsec.

The TNO has an absolute magnitude Hv=9.6
Diameter=71.8 km assuming a 5% albedo -- 6.5 sec chord
Diameter=29.3 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 11UQ62, (2020/03/07 02:12UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:04.9 +16:32:54  0.8  5.32  61
Alnath         05:27:34.2 +28:37:21  1.6 11.73  47
PPM 093646     04:39:27.4 +20:43:25  5.9  1.86  59
PPM 093732     04:45:35.0 +21:41:37  8.4  0.51  58
PPM 093750     04:47:30.2 +21:12:03  9.9  0.16  57
PPM 093745     04:47:11.5 +21:17:56 10.2  0.04  57
11UQ62         04:47:02.0 +21:18:59 16.5        57
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 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)
Kelowna 02:12:38 -4.6 CT Up 60.8 194.6 Up 02:04:45 - 02:20:32 4458
Summerland 02:12:36 -4.4 CT Up 61.1 194.2 Up 02:04:43 - 02:20:30 4427
Penticton 02:12:38 -4.5 CT Up 61.1 194.4 Up 02:04:44 - 02:20:31 4421
Okanagan Falls 02:12:38 -4.4 CT Up 61.3 194.5 Up 02:04:44 - 02:20:31 4403
Oliver 02:12:39 -4.4 CT Up 61.5 194.6 Up 02:04:45 - 02:20:32 4387
Anarchist Mountain Observatory 02:12:39 -4.6 CT Up 61.6 195.0 Up 02:04:46 - 02:20:33 4372
Oroville 02:12:40 -4.5 CT Up 61.7 194.9 Up 02:04:46 - 02:20:33 4364
Tonasket 02:12:39 -4.5 CT Up 61.9 195.1 Up 02:04:46 - 02:20:33 4341
Okanogan 02:12:39 -4.4 CT Up 62.3 194.9 Up 02:04:46 - 02:20:33 4307
Brewster 02:12:38 -4.2 CT Up 62.6 194.6 Up 02:04:44 - 02:20:31 4279
Manson/Chelan 02:12:36 -4.0 CT Up 62.8 194.0 Up 02:04:42 - 02:20:29 4255
Entiat 02:12:36 -3.9 CT Up 63.1 193.9 Up 02:04:42 - 02:20:29 4233
Wenatchee 02:12:35 -3.8 CT Up 63.3 193.9 Up 02:04:42 - 02:20:29 4207
Ellensburg 02:12:35 -3.7 CT Up 63.8 193.6 Up 02:04:41 - 02:20:28 4165
Yakima 02:12:35 -3.6 CT Up 64.2 193.8 Up 02:04:41 - 02:20:28 4124
Toppenish/White Swan 02:12:37 -3.7 CT Up 64.3 194.2 Up 02:04:43 - 02:20:30 4104
Pasco 02:12:45 -4.6 CT Up 64.2 197.1 Up 02:04:52 - 02:20:39 4103
PNWRO 02:12:47 -4.8 CT Up 64.4 197.7 Up 02:04:54 - 02:20:41 4080
George/Umatilla 02:12:44 -4.5 CT Up 64.6 196.8 Up 02:04:51 - 02:20:38 4067
Goldendale 02:12:34 -3.4 CT Up 65.0 193.6 Up 02:04:40 - 02:20:27 4045
The Dalles 02:12:32 -3.1 CT Up 65.2 192.9 Up 02:04:38 - 02:20:25 4020
Maupin 02:12:33 -3.2 CT Up 65.6 193.3 Up 02:04:39 - 02:20:26 3978
Madras/Culver 02:12:33 -3.1 CT Up 66.2 193.5 Up 02:04:40 - 02:20:27 3923
Redmond 02:12:33 -3.0 CT Up 66.5 193.6 Up 02:04:40 - 02:20:27 3886
Sisters 02:12:30 -2.7 CT Up 66.6 192.6 Up 02:04:37 - 02:20:24 3885
Bend 02:12:33 -2.9 CT Up 66.7 193.4 Up 02:04:40 - 02:20:27 3863
Oregon Observatory 02:12:32 -2.8 CT Up 66.9 193.2 Up 02:04:38 - 02:20:25 3845
La Pine/Gilchrist 02:12:32 -2.7 CT Up 67.2 193.1 Up 02:04:38 - 02:20:25 3823
North Lake 02:12:37 -3.2 CT Up 67.5 194.9 Up 02:04:43 - 02:20:30 3784
Paisley 02:12:41 -3.4 CT Up 67.9 196.1 Up 02:04:47 - 02:20:34 3730
Chiloquin 02:12:30 -2.4 CT Up 68.3 192.9 Up 02:04:37 - 02:20:24 3706
Lakeview 02:12:42 -3.5 CT Up 68.4 197.0 Up 02:04:49 - 02:20:36 3680
Klamath Falls 02:12:31 -2.4 CT Up 68.6 193.3 Up 02:04:38 - 02:20:25 3672
Niwot 02:14:42 -15.3 AT Up 63.3 231.9 Up 02:06:48 - 02:22:35 3666
SwRI 02:14:41 -15.3 AT Up 63.4 231.9 Up 02:06:47 - 02:22:34 3654
Tulelake 02:12:34 -2.6 CT Up 68.8 194.2 Up 02:04:41 - 02:20:28 3647
Cedarville 02:12:46 -3.6 CT Up 68.9 198.0 Up 02:04:52 - 02:20:39 3614
Fall River/Burney 02:12:36 -2.6 CT Up 69.7 195.1 Up 02:04:43 - 02:20:30 3553
Susanville 02:12:43 -3.2 CT Up 70.1 197.6 Up 02:04:49 - 02:20:36 3494
Gimple 02:12:41 -3.0 CT Up 70.4 197.2 Up 02:04:48 - 02:20:35 3463
Greenville 02:12:41 -2.9 CT Up 70.5 197.0 Up 02:04:47 - 02:20:34 3463
Quincy 02:12:41 -2.9 CT Up 70.6 197.2 Up 02:04:48 - 02:20:35 3442
Portola 02:12:44 -3.3 CT Up 70.7 198.6 Up 02:04:51 - 02:20:38 3433
Reno 02:12:50 -3.8 CT Up 70.7 200.7 Up 02:04:57 - 02:20:44 3411
Carson City 02:12:51 -3.8 CT Up 71.1 201.2 Up 02:04:58 - 02:20:45 3374
Yerington 02:12:55 -4.3 CT Up 71.0 203.1 Up 02:05:01 - 02:20:48 3360
Gardnerville 02:12:53 -3.8 CT Up 71.3 201.6 Up 02:04:59 - 02:20:46 3349
Hawthorne 02:12:55 -4.6 CT Up 71.3 205.1 Up 02:05:01 - 02:20:48 3317
Tonopah 02:12:55 -5.7 CT Up 71.2 209.6 Up 02:05:01 - 02:20:48 3289
Lee Vining 02:12:55 -4.2 CT Up 72.0 204.5 Up 02:05:01 - 02:20:48 3252
Bishop 02:12:55 -4.8 CT Up 72.3 207.4 Up 02:05:01 - 02:20:48 3199
Beatty 02:12:55 -6.1 NT Up 72.0 212.6 Up 02:05:01 - 02:20:48 3177
Indian Springs 02:13:29 -7.0 NT Up 71.7 216.3 Up 02:05:36 - 02:21:23 3145
Lone Pine 02:12:55 -5.0 CT Up 72.8 209.5 Up 02:05:01 - 02:20:48 3123
Henderson 02:13:36 -7.6 NT Up 71.8 219.2 Up 02:05:42 - 02:21:29 3097
Patrick 02:13:46 -8.5 NT Up 71.6 223.2 Up 02:05:53 - 02:21:40 3045
Searchlight/Boulder City 02:13:37 -7.7 NT Up 72.2 220.5 Up 02:05:44 - 02:21:31 3037
DCO 02:13:52 -9.1 NT Up 71.4 225.6 Up 02:05:58 - 02:21:45 3023
Kingman/Dolan Springs 02:13:45 -8.4 NT Up 71.9 223.2 Up 02:05:51 - 02:21:38 3019
Laughlin/Bullhead City 02:13:41 -7.9 NT Up 72.2 222.0 Up 02:05:47 - 02:21:34 3010
Mohave Valley 02:13:41 -7.9 NT Up 72.4 222.6 Up 02:05:48 - 02:21:35 2981
CPSLO 02:12:50 -2.8 CT Up 74.9 203.3 Up 02:04:56 - 02:20:43 2955
Lake Havasu City 02:13:44 -8.2 NT Up 72.6 224.1 Up 02:05:51 - 02:21:38 2942
Parker 02:13:45 -8.2 NT Up 72.8 225.0 Up 02:05:52 - 02:21:39 2905
Wildwood 02:12:55 -4.4 CT Up 75.2 212.3 Up 02:05:01 - 02:20:48 2850
Blythe 02:13:43 -7.9 NT Up 73.4 225.4 Up 02:05:50 - 02:21:37 2845
Idyllwild 02:13:25 -6.1 NT Up 74.5 219.2 Up 02:05:32 - 02:21:19 2830
Calipatria 02:13:37 -7.1 NT Up 74.3 224.1 Up 02:05:43 - 02:21:30 2780
Yuma 02:13:44 -7.9 NT Up 74.0 227.6 Up 02:05:51 - 02:21:38 2746

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 11UQ62, (2020/03/07 02:12UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  5.32  61
Alnath         05:26:17.5 +28:36:23  1.6 11.73  47
PPM 093646     04:38:15.8 +20:41:05  5.9  1.86  59
PPM 093732     04:44:22.7 +21:39:27  8.4  0.51  58
PPM 093750     04:46:18.2 +21:09:56  9.9  0.16  57
PPM 093745     04:45:59.5 +21:15:49 10.2  0.04  57
11UQ62         04:45:49.9 +21:16:51 16.5        57
Positions are for J2000

Event circumstances last updated at 2019/06/07 23:20:20 UT

Marc W. Buie, Southwest Research Institute

RECON