RECON: TNO occultation with 511551

Event between (511551) 14UD225 and star GA1040:00191454 with event index number of 1126045

Geocentric closest approach at 2021/11/05 10:14:33 UTC

J2000 position of star is 01:59:58.9 +15:17:14
Equinox of date position of star is 02:01:03.7 +15:22:59
Stellar brightness G=13.9, use SENSEUP=64
Star is 162 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=23.2

[RECON map]
TNO is 45.1 AU from the Sun and 44.2 AU from the Earth.
The TNO is moving 25.2 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 100 seconds.
The 1-sigma cross-track error in the shadow position is 1961 km.
The sky-plane scale is 32023.8 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 10.9 sec chord
Diameter=112.4 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 511551, (2021/11/05 10:15UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:10.6 +16:33:06  0.8 37.46 161
6Bet Ari       01:55:51.1 +20:54:50  2.6  5.66 161
PPM 117850     02:00:36.3 +12:24:00  6.1  3.00 161
PPM 117881     02:03:01.7 +15:10:18  7.6  0.50 162
PPM 117853     02:00:43.8 +15:22:43  9.5  0.11 162
511551         02:01:10.1 +15:23:33 13.9       162
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 26.0 km RECON observability=1.0 and success probability=11.9%
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 10:11:45 -44.1 Dark Down 37.7 245.9 Up 10:02:56 - 10:20:34 4518
Kelowna 10:11:45 -44.4 Dark Down 37.9 246.0 Up 10:02:56 - 10:20:34 4480
Summerland 10:11:45 -44.7 Dark Down 38.2 246.0 Up 10:02:56 - 10:20:34 4454
Penticton 10:11:44 -44.6 Dark Down 38.1 246.2 Up 10:02:55 - 10:20:33 4447
Oliver 10:11:44 -44.8 Dark Down 38.3 246.4 Up 10:02:55 - 10:20:33 4411
Anarchist Mountain Observatory 10:11:44 -44.8 Dark Down 38.2 246.8 Up 10:02:55 - 10:20:33 4393
Tonasket 10:11:43 -45.0 Dark Down 38.4 246.9 Up 10:02:54 - 10:20:32 4362
Victoria 10:11:51 -47.3 Dark Down 40.8 243.2 Up 10:03:02 - 10:20:40 4361
Okanogan 10:11:43 -45.3 Dark Down 38.6 247.0 Up 10:02:54 - 10:20:32 4328
Brewster 10:11:43 -45.6 Dark Down 38.8 247.0 Up 10:02:54 - 10:20:32 4301
Manson/Chelan 10:11:44 -45.9 Dark Down 39.2 246.8 Up 10:02:55 - 10:20:33 4281
Entiat 10:11:44 -46.1 Dark Down 39.3 246.9 Up 10:02:55 - 10:20:33 4259
Wenatchee 10:11:43 -46.3 Dark Down 39.4 247.0 Up 10:02:54 - 10:20:32 4233
Ellensburg 10:11:44 -46.6 Dark Down 39.7 247.1 Up 10:02:55 - 10:20:33 4191
Yakima 10:11:43 -46.8 Dark Down 39.9 247.4 Up 10:02:54 - 10:20:32 4150
Toppenish/White Swan 10:11:43 -46.9 Dark Down 39.9 247.7 Up 10:02:54 - 10:20:32 4126
Pasco 10:11:40 -46.2 Dark Down 39.1 249.0 Up 10:02:51 - 10:20:29 4109
PNWRO 10:11:39 -46.2 Dark Down 39.1 249.4 Up 10:02:50 - 10:20:28 4083
Goldendale 10:11:43 -47.4 Dark Down 40.4 247.8 Up 10:02:54 - 10:20:32 4071
The Dalles 10:11:44 -47.8 Dark Down 40.7 247.6 Up 10:02:55 - 10:20:33 4049
Maupin 10:11:43 -47.9 Dark Down 40.8 248.0 Up 10:02:54 - 10:20:32 4005
Sisters 10:11:43 -48.7 Dark Down 41.4 248.3 Up 10:02:54 - 10:20:32 3916
Redmond 10:11:43 -48.5 Dark Down 41.2 248.7 Up 10:02:54 - 10:20:32 3911
Bend 10:11:43 -48.7 Dark Down 41.3 248.7 Up 10:02:54 - 10:20:32 3890
Oregon Observatory 10:11:43 -48.8 Dark Down 41.5 248.7 Up 10:02:54 - 10:20:32 3872
La Pine/Gilchrist 10:11:43 -49.0 Dark Down 41.6 248.9 Up 10:02:54 - 10:20:32 3851
North Lake 10:11:41 -48.8 Dark Down 41.4 249.8 Up 10:02:52 - 10:20:30 3802
Paisley 10:11:40 -48.9 Dark Down 41.3 250.5 Up 10:02:51 - 10:20:29 3742
Klamath Falls 10:11:43 -49.9 Dark Down 42.3 249.8 Up 10:02:54 - 10:20:32 3699
Lakeview 10:11:39 -49.0 Dark Down 41.3 251.1 Up 10:02:50 - 10:20:28 3688
Cedarville 10:11:38 -49.2 Dark Down 41.4 251.8 Up 10:02:49 - 10:20:27 3617
Fall River/Burney 10:11:41 -50.2 Dark Down 42.4 251.2 Up 10:02:52 - 10:20:30 3571
Susanville 10:11:39 -50.0 Dark Down 42.1 252.4 Up 10:02:50 - 10:20:28 3501
Greenville 10:11:39 -50.4 Dark Down 42.4 252.4 Up 10:02:50 - 10:20:28 3472
Gimple 10:11:39 -50.3 Dark Down 42.4 252.4 Up 10:02:50 - 10:20:28 3472
Niwot 10:11:06 -39.2 Dark Down 30.7 264.3 Up 10:02:17 - 10:19:55 3469
SwRI 10:11:06 -39.2 Dark Down 30.8 264.3 Up 10:02:17 - 10:19:55 3457
Quincy 10:11:39 -50.5 Dark Down 42.5 252.5 Up 10:02:50 - 10:20:28 3451
Portola 10:11:38 -50.2 Dark Down 42.2 253.0 Up 10:02:49 - 10:20:27 3435
Reno 10:11:36 -49.9 Dark Down 41.8 253.8 Up 10:02:47 - 10:20:25 3404
Carson City 10:11:36 -50.0 Dark Down 41.8 254.1 Up 10:02:47 - 10:20:25 3365
Yerington 10:11:34 -49.6 Dark Down 41.4 254.8 Up 10:02:45 - 10:20:23 3341
Gardnerville 10:11:36 -50.1 Dark Down 41.9 254.4 Up 10:02:47 - 10:20:25 3338
Hawthorne 10:11:33 -49.5 Dark Down 41.2 255.6 Up 10:02:44 - 10:20:22 3289
Tonopah 10:11:29 -48.6 Dark Down 40.2 257.1 Up 10:02:40 - 10:20:18 3234
Lee Vining 10:11:33 -50.0 Dark Down 41.7 255.7 Up 10:02:44 - 10:20:22 3230
Bishop 10:11:31 -49.7 Dark Down 41.3 256.8 Up 10:02:42 - 10:20:20 3163
Beatty 10:11:27 -48.7 Dark Down 40.1 258.4 Up 10:02:38 - 10:20:16 3107
Indian Springs 10:11:24 -48.0 Dark Down 39.3 259.4 Up 10:02:35 - 10:20:13 3070
Henderson 10:11:23 -47.6 Dark Down 38.9 260.4 Up 10:02:34 - 10:20:12 3010
CPSLO 10:11:36 -52.2 Dark Down 43.5 256.9 Up 10:02:47 - 10:20:25 2948
Searchlight/Boulder City 10:11:22 -47.7 Dark Down 38.9 260.9 Up 10:02:33 - 10:20:11 2948
Patrick 10:11:20 -46.9 Dark Down 38.1 261.6 Up 10:02:31 - 10:20:09 2941
Kingman/Dolan Springs 10:11:20 -47.1 Dark Down 38.3 261.7 Up 10:02:31 - 10:20:09 2917
Laughlin/Bullhead City 10:11:21 -47.6 Dark Down 38.7 261.3 Up 10:02:32 - 10:20:10 2915
DCO 10:11:18 -46.5 Dark Down 37.5 262.3 Up 10:02:29 - 10:20:07 2907
Mohave Valley 10:11:21 -47.6 Dark Down 38.7 261.5 Up 10:02:32 - 10:20:10 2885
Lake Havasu City 10:11:20 -47.5 Dark Down 38.6 262.0 Up 10:02:31 - 10:20:09 2841
Wildwood 10:11:30 -51.0 Dark Down 42.1 259.5 Up 10:02:41 - 10:20:19 2807
Parker 10:11:20 -47.6 Dark Down 38.6 262.3 Up 10:02:31 - 10:20:09 2802
Idyllwild 10:11:26 -49.6 Dark Down 40.6 261.1 Up 10:02:37 - 10:20:15 2762
George/Scottsdale 10:11:14 -45.8 Dark Down 36.7 264.2 Up 10:02:25 - 10:20:03 2755
Blythe 10:11:20 -48.0 Dark Down 38.9 262.5 Up 10:02:31 - 10:20:09 2745
Calipatria 10:11:22 -48.9 Dark Down 39.7 262.4 Up 10:02:33 - 10:20:11 2692
Yuma 10:11:20 -48.2 Dark Down 39.1 263.3 Up 10:02:31 - 10:20:09 2643

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 511551, (2021/11/05 10:15UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 37.46 161
6Bet Ari       01:54:38.5 +20:48:27  2.6  5.66 161
PPM 117850     01:59:25.9 +12:17:40  6.1  3.00 161
PPM 117881     02:01:50.5 +15:04:01  7.6  0.50 162
PPM 117853     01:59:32.6 +15:16:24  9.5  0.11 162
511551         01:59:58.9 +15:17:14 13.9       162
Positions are for J2000

Event circumstances last updated at 2019/11/16 22:32:23 UT

Marc W. Buie, Southwest Research Institute

RECON