RECON: TNO occultation with 10JJ124

Event between 10JJ124 and star GA0700:20962350 with event index number of 287816

Geocentric closest approach at 2019/08/06 07:21:03 UTC

J2000 position of star is 18:09:07.7 -19:31:36
Equinox of date position of star is 18:10:16.6 -19:31:19
Stellar brightness G=16.3, use SENSEUP=128
Star is 67 degrees from the moon. Moon is 34% illuminated.
TNO apparent brightness V=20.6

[RECON map]
TNO is 24.7 AU from the Sun and 23.9 AU from the Earth.
The TNO is moving 16.2 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 208 seconds.
The 1-sigma cross-track error in the shadow position is 2764 km.
The sky-plane scale is 17367.6 km/arcsec.

The TNO has an absolute magnitude Hv=6.6
Diameter=284.5 km assuming a 5% albedo -- 17.6 sec chord
Diameter=116.1 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 10JJ124, (2019/08/06 07:21UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.7 -26:28:26  0.9 23.92  46
Nunki          18:56:28.7 -26:16:14  2.0 12.59  78
16 Sgr         18:16:22.9 -20:22:50  6.4  1.67  68
PPM 267927     18:09:51.4 -20:04:58  8.1  0.57  67
PPM 234084     18:09:49.9 -19:22:54  9.0  0.18  67
10JJ124        18:10:17.2 -19:31:19 16.3        67
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 11.6 km RECON observability=0.6 and success probability=6.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 07:19:56 -22.7 Dark Down 14.7 211.9 Really Low 07:04:56 - 07:34:56 984
Summerland 07:19:55 -22.9 Dark Down 15.1 211.7 Really Low 07:04:55 - 07:34:55 974
Penticton 07:19:55 -23.0 Dark Down 15.1 211.8 Really Low 07:04:55 - 07:34:55 971
Okanagan Falls 07:19:55 -23.2 Dark Down 15.3 211.8 Really Low 07:04:55 - 07:34:55 965
Oliver 07:19:54 -23.3 Dark Down 15.4 211.9 Really Low 07:04:54 - 07:34:54 959
Anarchist Mountain Observatory 07:19:53 -23.5 Dark Down 15.5 212.1 Really Low 07:04:53 - 07:34:53 953
Oroville 07:19:53 -23.6 Dark Down 15.6 212.0 Really Low 07:04:53 - 07:34:53 950
Tonasket 07:19:52 -23.8 Dark Down 15.8 212.0 Really Low 07:04:52 - 07:34:52 942
Okanogan 07:19:52 -24.1 Dark Down 16.1 211.9 Really Low 07:04:52 - 07:34:52 929
Brewster 07:19:52 -24.4 Dark Down 16.4 211.8 Really Low 07:04:52 - 07:34:52 920
Manson/Chelan 07:19:52 -24.5 Dark Down 16.7 211.5 Really Low 07:04:52 - 07:34:52 912
Entiat 07:19:52 -24.7 Dark Down 16.9 211.5 Really Low 07:04:52 - 07:34:52 904
Wenatchee 07:19:51 -25.0 Dark Down 17.2 211.4 Really Low 07:04:51 - 07:34:51 894
Ellensburg 07:19:51 -25.3 Dark Down 17.6 211.3 Really Low 07:04:51 - 07:34:51 878
Yakima 07:19:50 -25.7 Dark Down 18.0 211.3 Really Low 07:04:50 - 07:34:50 862
Toppenish/White Swan 07:19:48 -26.0 Dark Down 18.1 211.5 Really Low 07:04:48 - 07:34:48 853
Pasco 07:19:43 -26.3 Dark Down 17.7 212.7 Really Low 07:04:43 - 07:34:43 847
PNWRO 07:19:41 -26.5 Dark Down 17.9 212.9 Really Low 07:04:41 - 07:34:41 837
George/Umatilla 07:19:43 -26.6 Dark Down 18.1 212.5 Really Low 07:04:43 - 07:34:43 834
Goldendale 07:19:49 -26.4 Dark Down 18.7 211.2 Really Low 07:04:49 - 07:34:49 831
The Dalles 07:19:49 -26.6 Dark Down 19.0 210.9 Really Low 07:04:49 - 07:34:49 822
Maupin 07:19:47 -27.0 Dark Down 19.4 211.1 Really Low 07:04:47 - 07:34:47 804
Madras/Culver 07:19:46 -27.5 Dark Down 19.9 211.2 Really Low 07:04:46 - 07:34:46 780
Sisters 07:19:47 -27.8 Dark Down 20.3 210.8 Low 07:04:47 - 07:34:47 766
Redmond 07:19:45 -27.9 Dark Down 20.2 211.2 Low 07:04:45 - 07:34:45 765
Bend 07:19:45 -28.1 Dark Down 20.4 211.1 Low 07:04:45 - 07:34:45 755
Oregon Observatory 07:19:45 -28.2 Dark Down 20.6 211.0 Low 07:04:45 - 07:34:45 748
La Pine/Gilchrist 07:19:45 -28.4 Dark Down 20.8 211.0 Low 07:04:45 - 07:34:45 738
North Lake 07:19:41 -28.9 Dark Down 21.0 211.6 Low 07:04:41 - 07:34:41 718
Paisley 07:19:38 -29.5 Dark Down 21.3 212.0 Low 07:04:38 - 07:34:38 693
Chiloquin 07:19:43 -29.4 Dark Down 21.9 210.9 Low 07:04:43 - 07:34:43 687
Klamath Falls 07:19:42 -29.8 Dark Down 22.2 211.0 Low 07:04:42 - 07:34:42 671
Lakeview 07:19:36 -30.0 Dark Down 21.7 212.3 Low 07:04:36 - 07:34:36 668
Tulelake 07:19:40 -30.1 Dark Down 22.3 211.3 Low 07:04:40 - 07:34:40 658
Cedarville 07:19:33 -30.7 Dark Down 22.1 212.6 Low 07:04:33 - 07:34:33 636
Fall River/Burney 07:19:37 -31.0 Dark Down 23.0 211.6 Low 07:04:37 - 07:34:37 613
Susanville 07:19:32 -31.7 Dark Down 23.3 212.4 Low 07:04:32 - 07:34:32 581
Greenville 07:19:32 -31.9 Dark Down 23.6 212.2 Low 07:04:32 - 07:34:32 567
Gimple 07:19:32 -31.9 Dark Down 23.6 212.3 Low 07:04:32 - 07:34:32 567
Quincy 07:19:32 -32.1 Dark Down 23.8 212.2 Low 07:04:32 - 07:34:32 557
Portola 07:19:29 -32.3 Dark Down 23.7 212.7 Low 07:04:29 - 07:34:29 550
Reno 07:19:25 -32.7 Dark Down 23.7 213.4 Low 07:04:25 - 07:34:25 535
Carson City 07:19:24 -33.1 Dark Down 24.0 213.5 Low 07:04:24 - 07:34:24 517
Yerington 07:19:21 -33.3 Dark Down 23.9 214.1 Low 07:04:21 - 07:34:21 505
Gardnerville 07:19:23 -33.3 Dark Down 24.1 213.6 Low 07:04:23 - 07:34:23 503
Niwot 07:18:26 -33.1 Dark Down 16.2 225.6 Really Low 07:03:26 - 07:33:26 492
SwRI 07:18:26 -33.2 Dark Down 16.3 225.5 Really Low 07:03:26 - 07:33:26 487
Hawthorne 07:19:17 -33.9 Dark Down 24.0 214.7 Low 07:04:17 - 07:34:17 480
Tonopah 07:19:09 -34.6 Dark Down 23.8 216.0 Low 07:04:09 - 07:34:09 451
Lee Vining 07:19:18 -34.4 Dark Down 24.7 214.4 Low 07:04:18 - 07:34:18 450
Bishop 07:19:12 -35.1 Dark Down 24.9 215.2 Low 07:04:12 - 07:34:12 415
Beatty 07:19:04 -35.8 Dark Down 24.5 216.7 Low 07:04:04 - 07:34:04 385
Lone Pine 07:19:09 -35.9 Dark Down 25.3 215.7 Low 07:04:09 - 07:34:09 371
Indian Springs 07:18:58 -36.2 Dark Down 24.2 217.8 Low 07:03:58 - 07:33:58 363
Henderson 07:18:53 -36.8 Dark Down 24.3 218.5 Low 07:03:53 - 07:33:53 330
CPSLO 07:19:17 -36.6 Dark Down 27.6 213.7 Low 07:04:17 - 07:34:17 299
Searchlight/Boulder City 07:18:51 -37.4 Dark Down 24.8 218.7 Low 07:03:51 - 07:33:51 296
Patrick 07:18:46 -37.6 Dark Down 24.3 219.6 Low 07:03:46 - 07:33:46 288
Laughlin/Bullhead City 07:18:48 -37.7 Dark Down 24.8 219.1 Low 07:03:48 - 07:33:48 277
Kingman/Dolan Springs 07:18:46 -37.8 Dark Down 24.5 219.5 Low 07:03:46 - 07:33:46 276
DCO 07:18:42 -37.9 Dark Down 24.1 220.3 Low 07:03:42 - 07:33:42 267
Mohave Valley 07:18:48 -38.0 Dark Down 25.0 219.2 Low 07:03:48 - 07:33:48 260
Lake Havasu City 07:18:45 -38.4 Dark Down 25.2 219.5 Low 07:03:45 - 07:33:45 235
Wildwood 07:19:04 -38.2 Dark Down 27.6 215.9 Low 07:04:04 - 07:34:04 223
Parker 07:18:44 -38.8 Dark Down 25.5 219.6 Low 07:03:44 - 07:33:44 213
Idyllwild 07:18:54 -38.9 Dark Down 27.0 217.7 Low 07:03:54 - 07:33:54 197
Blythe 07:18:44 -39.3 Dark Down 26.0 219.5 Low 07:03:44 - 07:33:44 182
Calipatria 07:18:47 -39.6 Dark Down 26.9 218.9 Low 07:03:47 - 07:33:47 155
Yuma 07:18:41 -40.2 Dark Down 26.8 219.8 Low 07:03:41 - 07:33:41 124

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 10JJ124, (2019/08/06 07:21UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 23.92  46
Nunki          18:55:15.9 -26:17:49  2.0 12.59  78
16 Sgr         18:15:13.0 -20:23:17  6.4  1.67  68
PPM 267927     18:08:41.6 -20:05:14  8.1  0.57  67
PPM 234084     18:08:40.4 -19:23:10  9.0  0.18  67
10JJ124        18:09:07.7 -19:31:36 16.3        67
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:30:52 UT

Marc W. Buie, Southwest Research Institute

RECON