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 17:01:18.0 +08:31:33
Stellar brightness G=15.6, use SENSEUP=128
Star is 49 degrees from the moon. Moon is 12% illuminated.
TNO apparent brightness V=22.0

[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=4.1
Diameter=920.5 km assuming a 5% albedo -- 49.5 sec chord
Diameter=375.8 km assuming a 30% albedo -- 20.2 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 2.7 km RECON observability=1.0 and success probability=3.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sisters 10:48:41 -44.7 Dark Down 22.1 99.9 Low 10:33:41 - 11:03:41 5522
The Dalles 10:48:46 -43.7 Dark Down 22.2 100.8 Low 10:33:46 - 11:03:46 5519
Oregon Observatory 10:48:37 -44.9 Dark Down 22.3 99.8 Low 10:33:37 - 11:03:37 5514
La Pine/Gilchrist 10:48:35 -45.0 Dark Down 22.3 99.7 Low 10:33:35 - 11:03:35 5514
Maupin 10:48:44 -43.9 Dark Down 22.3 100.7 Low 10:33:44 - 11:03:44 5513
Chiloquin 10:48:29 -45.9 Dark Down 22.2 99.0 Low 10:33:29 - 11:03:29 5513
Bend 10:48:37 -44.7 Dark Down 22.3 100.0 Low 10:33:37 - 11:03:37 5512
Madras/Culver 10:48:41 -44.3 Dark Down 22.4 100.4 Low 10:33:41 - 11:03:41 5511
Goldendale 10:48:48 -43.4 Dark Down 22.4 101.1 Low 10:33:48 - 11:03:48 5510
Redmond 10:48:43 -44.5 Dark Down 22.4 100.2 Low 10:33:43 - 11:03:43 5509
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 5507
Yakima 10:48:55 -42.8 Dark Down 22.4 101.7 Low 10:33:55 - 11:03:55 5507
Wenatchee 10:49:00 -42.2 Dark Down 22.4 102.2 Low 10:34:00 - 11:04:00 5503
Entiat 10:49:02 -42.0 Dark Down 22.5 102.4 Low 10:34:02 - 11:04:02 5501
Toppenish/White Swan 10:48:52 -42.8 Dark Down 22.6 101.7 Low 10:33:52 - 11:03:52 5501
Manson/Chelan 10:49:03 -41.8 Dark Down 22.5 102.5 Low 10:34:03 - 11:04:03 5500
Tulelake 10:48:27 -46.0 Dark Down 22.5 99.0 Low 10:33:27 - 11:03:27 5495
North Lake 10:48:33 -44.9 Dark Down 22.8 100.0 Low 10:33:33 - 11:03:33 5492
Brewster 10:49:02 -41.5 Dark Down 22.6 102.9 Low 10:34:02 - 11:04:02 5489
Summerland 10:49:11 -40.5 Dark Down 22.4 103.7 Low 10:34:11 - 11:04:11 5488
Okanagan Falls 10:49:10 -40.6 Dark Down 22.5 103.6 Low 10:34:10 - 11:04:10 5485
Penticton 10:49:11 -40.5 Dark Down 22.5 103.7 Low 10:34:11 - 11:04:11 5485
Oliver 10:49:09 -40.7 Dark Down 22.6 103.6 Low 10:34:09 - 11:04:09 5484
Okanogan 10:49:04 -41.2 Dark Down 22.7 103.2 Low 10:34:04 - 11:04:04 5484
Oroville 10:49:07 -40.8 Dark Down 22.7 103.6 Low 10:34:07 - 11:04:07 5481
Tonasket 10:49:07 -40.9 Dark Down 22.7 103.5 Low 10:34:07 - 11:04:07 5481
Fall River/Burney 10:48:21 -46.4 Dark Down 22.7 98.7 Low 10:33:21 - 11:03:21 5480
Kelowna 10:49:14 -40.2 Dark Down 22.5 104.0 Low 10:34:14 - 11:04:14 5479
Anarchist Mountain Observatory 10:49:09 -40.7 Dark Down 22.7 103.7 Low 10:34:09 - 11:04:09 5479
Paisley 10:48:32 -45.0 Dark Down 23.1 100.0 Low 10:33:32 - 11:03:32 5474
George/Umatilla 10:48:50 -42.5 Dark Down 23.4 102.3 Low 10:33:50 - 11:03:50 5466
Pasco 10:48:52 -42.2 Dark Down 23.5 102.7 Low 10:33:52 - 11:03:52 5462
Lakeview 10:48:27 -45.1 Dark Down 23.3 99.9 Low 10:33:27 - 11:03:27 5462
PNWRO 10:48:53 -42.2 Dark Down 23.7 102.7 Low 10:33:53 - 11:03:53 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 5449
Cedarville 10:48:23 -45.3 Dark Down 23.6 99.8 Low 10:33:23 - 11:03:23 5448
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 5432
Reno 10:48:12 -46.1 Dark Down 24.1 99.1 Low 10:33:12 - 11:03:12 5406
Carson City 10:48:11 -46.3 Dark Down 24.2 99.0 Low 10:33:11 - 11:03:11 5399
Gardnerville 10:48:09 -46.4 Dark Down 24.2 98.9 Low 10:33:09 - 11:03:09 5393
Yerington 10:48:09 -45.9 Dark Down 24.7 99.3 Low 10:33:09 - 11:03:09 5374
Lee Vining 10:48:04 -46.4 Dark Down 24.9 98.8 Low 10:33:04 - 11:03:04 5353
Hawthorne 10:48:08 -45.8 Dark Down 25.2 99.4 Low 10:33:08 - 11:03:08 5347
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 5315
Tonopah 10:48:06 -45.0 Dark Down 26.3 100.2 Low 10:33:06 - 11:03:06 5288
Lone Pine 10:47:57 -46.2 Dark Down 25.9 98.9 Low 10:32:57 - 11:02:57 5286
Beatty 10:48:01 -45.1 Dark Down 26.9 99.9 Low 10:33:01 - 11:03:01 5245
Wildwood 10:47:42 -47.6 Dark Down 25.8 97.3 Low 10:32:42 - 11:02:42 5242
Indian Springs 10:47:59 -44.4 Dark Down 27.8 100.5 Low 10:32:59 - 11:02:59 5197
Idyllwild 10:47:41 -46.3 Dark Down 27.4 98.3 Low 10:32:41 - 11:02:41 5162
Henderson 10:47:57 -44.1 Dark Down 28.4 100.6 Low 10:32:57 - 11:02:57 5157
Searchlight/Boulder City 10:47:56 -44.2 Dark Down 28.6 100.4 Low 10:32:56 - 11:02:56 5139
Laughlin/Bullhead City 10:47:54 -44.1 Dark Down 28.9 100.4 Low 10:32:54 - 11:02:54 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 10:47:54 -43.5 Dark Down 29.4 101.0 Low 10:32:54 - 11:02:54 5096
Lake Havasu City 10:47:52 -44.1 Dark Down 29.2 100.2 Low 10:32:52 - 11:02:52 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 5059
Yuma 10:47:38 -45.0 Dark Down 29.2 99.0 Low 10:32:38 - 11:02:38 5048
SwRI 10:48:36 -35.5 Dark Down 34.9 110.4 Up 10:33:36 - 11:03:36 4846
Niwot 10:48:34 -35.4 Dark Down 34.9 110.5 Up 10:33:34 - 11:03:34 4845

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 2019/06/08 04:44:58 UT

Marc W. Buie, Southwest Research Institute

RECON