RECON: TNO occultation with 10JO179

Event between 10JO179 and star GA0980:04620429 with event index number of 1256988

Geocentric closest approach at 2023/02/17 10:48:44 UTC

J2000 position of star is 17:00:22.0 +08:33:13
Equinox of date position of star is 17:01:20.2 +08:31:30
Stellar brightness G=15.6, use SENSEUP=128
Star is 49 degrees from the moon. Moon is 12% illuminated.
TNO apparent brightness V=27.9

[RECON map]
TNO is 60.2 AU from the Sun and 60.4 AU from the Earth.
The TNO is moving 18.6 km/sec on the sky relative to the star, or, 1.5 arcsec/hr.
The 1-sigma error in the time of the event is 210 seconds.
The 1-sigma cross-track error in the shadow position is 3913 km.
The sky-plane scale is 43818.8 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=920.5 km assuming a 5% albedo -- 3.2 sec chord
Diameter=375.8 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 10JO179, (2023/02/17 10:49UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:49.8 -26:28:53  0.9 35.78  38
Rasalhague     17:36:00.5 +12:32:42  2.1  9.39  47
27Kap Oph      16:58:45.9 +09:20:26  3.2  1.06  50
PPM 163320     16:59:13.1 +08:59:55  8.4  0.73  50
PPM 163382     17:01:51.1 +08:04:01  9.7  0.46  49
PPM 163378     17:01:36.0 +08:42:51 11.5  0.20  49
10JO179        17:01:28.7 +08:31:15 15.6        49
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 4.3 sigma about the mid-time.
The median site spacing is 2.9 km RECON observability=1.0 and success probability=3.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 10:49:03 -43.2 Dark Down 20.2 100.2 Low 10:34:03 - 11:04:03 5588
Sisters 10:48:39 -44.7 Dark Down 22.1 99.9 Low 10:33:39 - 11:03:39 5522
The Dalles 10:48:46 -43.7 Dark Down 22.2 100.8 Low 10:33:46 - 11:03:46 5519
La Pine/Gilchrist 10:48:35 -45.0 Dark Down 22.3 99.7 Low 10:33:35 - 11:03:35 5515
Oregon Observatory 10:48:36 -44.9 Dark Down 22.3 99.8 Low 10:33:36 - 11:03:36 5515
Maupin 10:48:44 -43.9 Dark Down 22.3 100.7 Low 10:33:44 - 11:03:44 5513
Bend 10:48:37 -44.7 Dark Down 22.3 100.0 Low 10:33:37 - 11:03:37 5512
Goldendale 10:48:48 -43.4 Dark Down 22.4 101.1 Low 10:33:48 - 11:03:48 5511
Redmond 10:48:39 -44.5 Dark Down 22.4 100.2 Low 10:33:39 - 11:03:39 5510
Ellensburg 10:48:55 -42.6 Dark Down 22.4 101.8 Low 10:33:55 - 11:03:55 5508
Klamath Falls 10:48:26 -46.0 Dark Down 22.3 98.9 Low 10:33:26 - 11:03:26 5508
Yakima 10:48:53 -42.8 Dark Down 22.4 101.7 Low 10:33:53 - 11:03:53 5507
Wenatchee 10:48:58 -42.2 Dark Down 22.4 102.2 Low 10:33:58 - 11:03:58 5503
Toppenish/White Swan 10:48:51 -42.8 Dark Down 22.6 101.7 Low 10:33:51 - 11:03:51 5501
Entiat 10:48:59 -42.0 Dark Down 22.4 102.4 Low 10:33:59 - 11:03:59 5501
Manson/Chelan 10:49:01 -41.8 Dark Down 22.4 102.5 Low 10:34:01 - 11:04:01 5500
North Lake 10:48:33 -44.9 Dark Down 22.8 100.0 Low 10:33:33 - 11:03:33 5493
Peachland 10:49:11 -40.5 Dark Down 22.3 103.6 Low 10:34:11 - 11:04:11 5491
Brewster 10:49:02 -41.5 Dark Down 22.6 102.9 Low 10:34:02 - 11:04:02 5490
Summerland 10:49:11 -40.5 Dark Down 22.4 103.7 Low 10:34:11 - 11:04:11 5488
Penticton 10:49:11 -40.5 Dark Down 22.5 103.7 Low 10:34:11 - 11:04:11 5485
Oliver 10:49:10 -40.7 Dark Down 22.6 103.6 Low 10:34:10 - 11:04:10 5485
Okanogan 10:49:04 -41.2 Dark Down 22.7 103.2 Low 10:34:04 - 11:04:04 5485
Kelowna 10:49:15 -40.3 Dark Down 22.5 103.9 Low 10:34:15 - 11:04:15 5482
Fall River/Burney 10:48:20 -46.4 Dark Down 22.7 98.7 Low 10:33:20 - 11:03:20 5480
Tonasket 10:49:07 -40.9 Dark Down 22.7 103.5 Low 10:34:07 - 11:04:07 5480
Anarchist Mountain Observatory 10:49:08 -40.7 Dark Down 22.7 103.7 Low 10:34:08 - 11:04:08 5479
Clarence Fulton 10:49:15 -40.0 Dark Down 22.5 104.2 Low 10:34:15 - 11:04:15 5477
Paisley 10:48:32 -45.0 Dark Down 23.1 100.0 Low 10:33:32 - 11:03:32 5475
Lakeview 10:48:26 -45.1 Dark Down 23.3 99.9 Low 10:33:26 - 11:03:26 5464
Pasco 10:48:54 -42.2 Dark Down 23.5 102.7 Low 10:33:54 - 11:03:54 5462
PNWRO 10:48:51 -42.2 Dark Down 23.7 102.7 Low 10:33:51 - 11:03:51 5454
Greenville 10:48:15 -46.6 Dark Down 23.2 98.6 Low 10:33:15 - 11:03:15 5453
Gimple 10:48:15 -46.5 Dark Down 23.2 98.6 Low 10:33:15 - 11:03:15 5450
Quincy 10:48:13 -46.7 Dark Down 23.2 98.5 Low 10:33:13 - 11:03:13 5450
Cedarville 10:48:23 -45.3 Dark Down 23.6 99.7 Low 10:33:23 - 11:03:23 5449
Susanville 10:48:16 -46.2 Dark Down 23.4 98.9 Low 10:33:16 - 11:03:16 5448
Portola 10:48:13 -46.4 Dark Down 23.6 98.8 Low 10:33:13 - 11:03:13 5433
Reno 10:48:12 -46.1 Dark Down 24.1 99.1 Low 10:33:12 - 11:03:12 5407
Carson City 10:48:11 -46.3 Dark Down 24.2 99.0 Low 10:33:11 - 11:03:11 5400
Gardnerville 10:48:09 -46.4 Dark Down 24.2 98.9 Low 10:33:09 - 11:03:09 5394
Yerington 10:48:09 -45.9 Dark Down 24.7 99.3 Low 10:33:09 - 11:03:09 5375
Lee Vining 10:48:04 -46.4 Dark Down 24.9 98.8 Low 10:33:04 - 11:03:04 5354
Hawthorne 10:48:08 -45.8 Dark Down 25.2 99.4 Low 10:33:08 - 11:03:08 5348
CPSLO 10:47:47 -48.7 Dark Down 23.9 96.6 Low 10:32:47 - 11:02:47 5346
Bishop 10:48:02 -46.1 Dark Down 25.5 99.0 Low 10:33:02 - 11:03:02 5316
Tonopah 10:48:06 -45.0 Dark Down 26.3 100.2 Low 10:33:06 - 11:03:06 5289
Beatty 10:48:03 -45.1 Dark Down 26.9 99.9 Low 10:33:03 - 11:03:03 5247
Wildwood 10:47:40 -47.6 Dark Down 25.8 97.3 Low 10:32:40 - 11:02:40 5242
Indian Springs 10:48:00 -44.4 Dark Down 27.8 100.5 Low 10:33:00 - 11:03:00 5198
Idyllwild 10:47:43 -46.3 Dark Down 27.4 98.3 Low 10:32:43 - 11:02:43 5162
Henderson 10:48:01 -44.1 Dark Down 28.4 100.7 Low 10:33:01 - 11:03:01 5157
Searchlight/Boulder City 10:47:54 -44.3 Dark Down 28.6 100.4 Low 10:32:54 - 11:02:54 5140
Laughlin/Bullhead City 10:47:53 -44.1 Dark Down 28.9 100.4 Low 10:32:53 - 11:02:53 5117
Mohave Valley 10:47:51 -44.2 Dark Down 28.9 100.3 Low 10:32:51 - 11:02:51 5110
Kingman/Dolan Springs 10:47:55 -43.7 Dark Down 29.3 100.8 Low 10:32:55 - 11:02:55 5098
Calipatria 10:47:40 -45.5 Dark Down 28.4 98.7 Low 10:32:40 - 11:02:40 5097
Patrick 10:47:55 -43.5 Dark Down 29.4 101.0 Low 10:32:55 - 11:02:55 5097
Lake Havasu City 10:47:51 -44.1 Dark Down 29.2 100.2 Low 10:32:51 - 11:02:51 5089
Parker 10:47:47 -44.2 Dark Down 29.3 100.0 Low 10:32:47 - 11:02:47 5077
Blythe 10:47:45 -44.6 Dark Down 29.1 99.6 Low 10:32:45 - 11:02:45 5074
DCO 10:47:56 -43.0 Dark Down 30.1 101.4 Up 10:32:56 - 11:02:56 5060
Yuma 10:47:38 -45.0 Dark Down 29.2 99.0 Low 10:32:38 - 11:02:38 5048
George/Scottsdale 10:47:48 -42.4 Dark Down 31.4 101.4 Up 10:32:48 - 11:02:48 4963
SwRI 10:48:36 -35.5 Dark Down 34.9 110.4 Up 10:33:36 - 11:03:36 4848
Niwot 10:48:37 -35.4 Dark Down 34.9 110.5 Up 10:33:37 - 11:03:37 4847

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 10JO179, (2023/02/17 10:49UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 35.78  38
Rasalhague     17:34:56.2 +12:33:32  2.1  9.39  47
27Kap Oph      16:57:39.7 +09:22:30  3.2  1.06  50
PPM 163320     16:58:06.7 +09:01:58  8.4  0.73  50
PPM 163382     17:00:44.2 +08:05:58  9.7  0.46  49
PPM 163378     17:00:29.5 +08:44:49 11.5  0.20  49
10JO179        17:00:22.0 +08:33:13 15.6        49
Positions are for J2000

Event circumstances last updated at 2020/03/15 21:39:07 UT

Marc W. Buie, Southwest Research Institute

RECON