RECON: TNO occultation with 14YS72

Event between 14YS72 and star GA0800:00198902 with event index number of 1968995

Geocentric closest approach at 2022/02/01 02:52:55 UTC

J2000 position of star is 02:33:45.1 -09:35:34
Equinox of date position of star is 02:34:48.9 -09:29:53
Stellar brightness G=10.2, use SENSEUP=2 with the MallinCam and and exposure time of 125 milli-seconds with the QHY174 camera.
Star is 81 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=23.4

[RECON map]
TNO is 32.1 AU from the Sun and 32.2 AU from the Earth.
The TNO is moving 16.4 km/sec on the sky relative to the star, or, 2.5 arcsec/hr.
The 1-sigma error in the time of the event is 96 seconds.
The 1-sigma cross-track error in the shadow position is 2409 km.
The sky-plane scale is 23378.6 km/arcsec.

The TNO has an absolute magnitude Hv=8.1
Diameter=114.3 km assuming a 5% albedo -- 8.7 sec chord
Diameter=46.7 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 14YS72, (2022/02/01 02:52UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:15:36.0 -08:10:40  0.1 39.72 118
68Omi Cet      02:20:27.8 -02:52:42  2.0  7.52  80
PPM 184889     02:41:17.0 -09:21:34  6.2  1.60  82
PPM 184785     02:36:07.1 -09:47:35  8.4  0.43  81
PPM 184759     02:34:49.9 -09:29:48  9.5  0.00  81
14YS72         02:34:49.9 -09:29:48 10.2        81
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 14.8 km RECON observability=1.0 and success probability=10.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 02:58:17 -17.8 AT Down 30.6 196.1 Up 02:49:48 - 03:06:46 -3131
Peachland 02:58:27 -20.3 Dark Down 28.7 200.0 Low 02:49:58 - 03:06:56 -3324
Clarence Fulton 02:58:29 -20.7 Dark Down 28.1 200.4 Low 02:50:00 - 03:06:58 -3331
Summerland 02:58:27 -20.4 Dark Down 28.8 200.1 Low 02:49:58 - 03:06:56 -3337
Kelowna 02:58:27 -20.5 Dark Down 28.5 200.3 Low 02:49:58 - 03:06:56 -3339
Penticton 02:58:27 -20.5 Dark Down 28.8 200.3 Low 02:49:58 - 03:06:56 -3347
Oliver 02:58:26 -20.5 Dark Down 29.2 200.3 Low 02:49:57 - 03:06:55 -3363
Manson/Chelan 02:58:21 -20.0 Dark Down 30.5 199.9 Up 02:49:52 - 03:06:50 -3380
Anarchist Mountain Observatory 02:58:25 -20.6 Dark Down 29.3 200.6 Low 02:49:56 - 03:06:54 -3383
Wenatchee 02:58:18 -19.8 Dark Down 31.0 199.8 Up 02:49:49 - 03:06:47 -3389
Ellensburg 02:58:18 -19.6 Dark Down 31.4 199.6 Up 02:49:49 - 03:06:47 -3392
Tonasket 02:58:25 -20.5 Dark Down 29.6 200.6 Low 02:49:56 - 03:06:54 -3392
Brewster 02:58:22 -20.2 Dark Down 30.2 200.3 Up 02:49:53 - 03:06:51 -3396
Okanogan 02:58:23 -20.4 Dark Down 29.9 200.4 Low 02:49:54 - 03:06:52 -3397
The Dalles 02:58:12 -19.1 Dark Down 32.9 199.2 Up 02:49:43 - 03:06:41 -3407
Yakima 02:58:17 -19.6 Dark Down 31.8 199.7 Up 02:49:48 - 03:06:46 -3408
Goldendale 02:58:13 -19.3 Dark Down 32.6 199.5 Up 02:49:44 - 03:06:42 -3423
Toppenish/White Swan 02:58:16 -19.7 Dark Down 32.0 199.9 Up 02:49:47 - 03:06:45 -3430
Maupin 02:58:11 -19.1 Dark Down 33.3 199.4 Up 02:49:42 - 03:06:40 -3433
Sisters 02:58:08 -18.6 Dark Down 34.2 199.0 Up 02:49:39 - 03:06:37 -3435
Oregon Observatory 02:58:07 -18.7 Dark Down 34.6 199.2 Up 02:49:38 - 03:06:36 -3462
Bend 02:58:07 -18.8 Dark Down 34.4 199.3 Up 02:49:38 - 03:06:36 -3464
Redmond 02:58:08 -18.9 Dark Down 34.2 199.5 Up 02:49:39 - 03:06:37 -3465
La Pine/Gilchrist 02:58:05 -18.6 Dark Down 34.8 199.2 Up 02:49:36 - 03:06:34 -3466
Chiloquin 02:58:00 -18.2 Dark Down 35.9 199.0 Up 02:49:31 - 03:06:29 -3487
Klamath Falls 02:58:00 -18.2 Dark Down 36.3 199.2 Up 02:49:31 - 03:06:29 -3508
Pasco 02:58:17 -20.6 Dark Down 31.8 201.4 Up 02:49:48 - 03:06:46 -3524
North Lake 02:58:05 -19.0 Dark Down 35.1 200.0 Up 02:49:36 - 03:06:34 -3530
PNWRO 02:58:17 -20.7 Dark Down 32.0 201.7 Up 02:49:48 - 03:06:46 -3552
Paisley 02:58:03 -19.2 Dark Down 35.5 200.5 Up 02:49:34 - 03:06:32 -3581
Fall River/Burney 02:57:56 -18.4 Dark Down 37.3 199.9 Up 02:49:27 - 03:06:25 -3588
Lakeview 02:58:01 -19.3 Dark Down 35.9 200.9 Up 02:49:32 - 03:06:30 -3618
Cedarville 02:57:59 -19.3 Dark Down 36.5 201.3 Up 02:49:30 - 03:06:28 -3661
Greenville 02:57:54 -18.6 Dark Down 38.0 200.7 Up 02:49:25 - 03:06:23 -3662
Gimple 02:57:53 -18.6 Dark Down 38.0 200.8 Up 02:49:24 - 03:06:22 -3669
Quincy 02:57:52 -18.6 Dark Down 38.2 200.7 Up 02:49:23 - 03:06:21 -3671
Susanville 02:57:55 -18.8 Dark Down 37.7 201.0 Up 02:49:26 - 03:06:24 -3673
Portola 02:57:53 -18.9 Dark Down 38.2 201.3 Up 02:49:24 - 03:06:22 -3714
Reno 02:57:53 -19.4 Dark Down 38.2 202.2 Up 02:49:24 - 03:06:22 -3777
Carson City 02:57:51 -19.3 Dark Down 38.6 202.3 Up 02:49:22 - 03:06:20 -3795
Gardnerville 02:57:51 -19.4 Dark Down 38.8 202.5 Up 02:49:22 - 03:06:20 -3810
Yerington 02:57:52 -19.8 Dark Down 38.6 203.2 Up 02:49:23 - 03:06:21 -3854
CPSLO 02:57:34 -18.1 Dark Down 42.4 202.4 Up 02:49:05 - 03:06:03 -3899
Lee Vining 02:57:48 -19.7 Dark Down 39.5 203.5 Up 02:49:19 - 03:06:17 -3905
Hawthorne 02:57:50 -20.2 Dark Down 38.8 203.9 Up 02:49:21 - 03:06:19 -3918
Bishop 02:57:46 -20.2 Dark Down 39.8 204.6 Up 02:49:17 - 03:06:15 -3991
Tonopah 02:57:51 -21.2 Dark Down 38.8 205.8 Up 02:49:22 - 03:06:20 -4052
Wildwood 02:57:32 -19.6 Dark Down 42.9 205.5 Up 02:49:03 - 03:06:01 -4127
Beatty 02:57:48 -21.5 Dark Down 39.7 206.7 Up 02:49:19 - 03:06:17 -4144
Indian Springs 02:57:47 -22.3 Dark Down 39.5 208.1 Up 02:49:18 - 03:06:16 -4247
Idyllwild 02:57:34 -21.1 Dark Down 42.5 208.0 Up 02:49:05 - 03:06:03 -4302
Henderson 02:57:46 -22.8 Dark Down 39.8 209.2 Up 02:49:17 - 03:06:15 -4329
Laughlin/Bullhead City 02:57:43 -23.0 Dark Down 40.4 210.0 Up 02:49:14 - 03:06:12 -4406
Mohave Valley 02:57:42 -23.0 Dark Down 40.6 210.1 Up 02:49:13 - 03:06:11 -4421
Calipatria 02:57:33 -22.0 Dark Down 42.5 209.7 Up 02:49:04 - 03:06:02 -4430
Kingman/Dolan Springs 02:57:44 -23.5 Dark Down 40.1 210.6 Up 02:49:15 - 03:06:13 -4447
Patrick 02:57:45 -23.6 Dark Down 39.8 210.7 Up 02:49:16 - 03:06:14 -4451
Lake Havasu City 02:57:41 -23.2 Dark Down 40.8 210.6 Up 02:49:12 - 03:06:10 -4461
Parker 02:57:40 -23.2 Dark Down 41.1 210.8 Up 02:49:11 - 03:06:09 -4482
Blythe 02:57:37 -22.9 Dark Down 41.7 210.6 Up 02:49:08 - 03:06:06 -4483
Yuma 02:57:34 -22.7 Dark Down 42.5 211.0 Up 02:49:05 - 03:06:03 -4527
George/Scottsdale 02:57:42 -25.2 Dark Down 40.4 213.8 Up 02:49:13 - 03:06:11 -4702
Dunrhomin 02:58:15 -30.7 Dark Down 31.9 218.3 Up 02:49:46 - 03:06:44 -4834

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 14YS72, (2022/02/01 02:52UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:14:32.3 -08:12:06  0.1 39.72 118
68Omi Cet      02:19:20.8 -02:58:45  2.0  7.52  80
PPM 184889     02:40:12.2 -09:27:12  6.2  1.60  82
PPM 184785     02:35:02.4 -09:53:20  8.4  0.43  81
PPM 184759     02:33:45.1 -09:35:34  9.5  0.00  81
14YS72         02:33:45.1 -09:35:34 10.2        81
Positions are for J2000

Event circumstances last updated at 2021/10/07 00:34:26 UT

Marc W. Buie, Southwest Research Institute

RECON