RECON: TNO occultation with 523710

Event between (523710) 14JF80 and star GA0960:17271291 with event index number of 323490

Geocentric closest approach at 2019/12/07 03:47:40 UTC

J2000 position of star is 22:41:21.1 +06:36:05
Equinox of date position of star is 22:42:19.8 +06:42:12
Stellar brightness G=16.6, use SENSEUP=128
Star is 37 degrees from the moon. Moon is 76% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 18.8 AU from the Sun and 18.8 AU from the Earth.
The TNO is moving 11.0 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 120 seconds.
The 1-sigma cross-track error in the shadow position is 895 km.
The sky-plane scale is 13602.3 km/arcsec.

The TNO has an absolute magnitude Hv=9.0
Diameter=95.5 km assuming a 5% albedo -- 8.7 sec chord
Diameter=39.0 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 523710, (2019/12/07 03:48UT)
Object            RA         Dec     mag  sep  mel
Markab         23:05:45.3 +15:18:46  2.5 10.34  33
37 Peg         22:30:58.4 +04:32:00  5.9  3.57  39
PPM 173369     22:45:05.4 +06:50:27  7.9  0.69  36
PPM 173316     22:41:35.1 +06:38:00  9.2  0.20  37
523710         22:42:21.3 +06:42:22 16.6        36
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 15.7 km RECON observability=1.0 and success probability=1.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 03:48:58 -36.3 Dark Up 38.6 224.0 Up 03:38:29 - 03:59:26 3945
Summerland 03:48:58 -36.1 Dark Up 38.9 223.9 Up 03:38:29 - 03:59:26 3920
Penticton 03:48:58 -36.2 Dark Up 38.9 224.0 Up 03:38:30 - 03:59:27 3918
Okanagan Falls 03:49:00 -36.2 Dark Up 39.1 224.1 Up 03:38:31 - 03:59:28 3905
Oliver 03:49:01 -36.3 Dark Up 39.2 224.2 Up 03:38:32 - 03:59:29 3896
Anarchist Mountain Observatory 03:49:03 -36.4 Dark Up 39.2 224.6 Up 03:38:34 - 03:59:31 3889
Oroville 03:49:03 -36.4 Dark Up 39.3 224.5 Up 03:38:35 - 03:59:32 3882
Tonasket 03:49:05 -36.4 Dark Up 39.4 224.7 Up 03:38:36 - 03:59:33 3868
Okanogan 03:49:06 -36.3 Dark Up 39.8 224.7 Up 03:38:38 - 03:59:35 3843
Brewster 03:49:07 -36.2 Dark Up 40.0 224.6 Up 03:38:38 - 03:59:35 3820
Manson/Chelan 03:49:06 -36.0 Dark Up 40.4 224.3 Up 03:38:37 - 03:59:34 3798
Entiat 03:49:07 -36.0 Dark Up 40.6 224.4 Up 03:38:38 - 03:59:35 3782
Wenatchee 03:49:07 -35.9 Dark Up 40.8 224.4 Up 03:38:38 - 03:59:35 3763
Ellensburg 03:49:09 -35.8 Dark Up 41.2 224.4 Up 03:38:40 - 03:59:37 3730
Pasco 03:49:22 -36.9 Dark Up 41.0 226.6 Up 03:38:53 - 03:59:50 3713
Yakima 03:49:11 -35.9 Dark Up 41.5 224.7 Up 03:38:43 - 03:59:40 3702
PNWRO 03:49:24 -37.1 Dark Up 41.0 227.0 Up 03:38:55 - 03:59:52 3702
Toppenish/White Swan 03:49:14 -36.0 Dark Up 41.5 225.0 Up 03:38:45 - 03:59:42 3692
George/Umatilla 03:49:22 -36.8 Dark Up 41.3 226.6 Up 03:38:54 - 03:59:51 3685
Goldendale 03:49:14 -35.7 Dark Up 42.1 224.9 Up 03:38:46 - 03:59:43 3643
Niwot 03:51:10 -48.2 Dark Up 35.7 245.2 Up 03:40:41 - 04:01:38 3625
The Dalles 03:49:13 -35.5 Dark Up 42.5 224.6 Up 03:38:45 - 03:59:42 3619
SwRI 03:51:10 -48.1 Dark Up 35.8 245.2 Up 03:40:41 - 04:01:38 3615
Maupin 03:49:17 -35.6 Dark Up 42.7 225.0 Up 03:38:49 - 03:59:46 3593
Madras/Culver 03:49:19 -35.6 Dark Up 43.1 225.3 Up 03:38:51 - 03:59:48 3553
Redmond 03:49:22 -35.6 Dark Up 43.4 225.5 Up 03:38:53 - 03:59:50 3527
Sisters 03:49:18 -35.3 Dark Up 43.6 225.0 Up 03:38:49 - 03:59:46 3518
Bend 03:49:22 -35.5 Dark Up 43.6 225.5 Up 03:38:53 - 03:59:50 3508
Oregon Observatory 03:49:22 -35.4 Dark Up 43.8 225.5 Up 03:38:54 - 03:59:51 3492
La Pine/Gilchrist 03:49:22 -35.4 Dark Up 44.0 225.5 Up 03:38:54 - 03:59:51 3476
North Lake 03:49:29 -35.9 Dark Up 43.9 226.6 Up 03:39:00 - 03:59:57 3460
Paisley 03:49:34 -36.1 Dark Up 44.1 227.4 Up 03:39:06 - 04:00:03 3429
Lakeview 03:49:39 -36.3 Dark Up 44.3 228.0 Up 03:39:10 - 04:00:07 3396
Chiloquin 03:49:27 -35.2 Dark Up 44.9 225.9 Up 03:38:59 - 03:59:56 3386
Klamath Falls 03:49:30 -35.2 Dark Up 45.1 226.3 Up 03:39:02 - 03:59:59 3363
Cedarville 03:49:42 -36.5 Dark Up 44.7 228.7 Up 03:39:13 - 04:00:10 3352
Tulelake 03:49:33 -35.5 Dark Up 45.1 226.8 Up 03:39:05 - 04:00:02 3350
Fall River/Burney 03:49:40 -35.5 Dark Up 45.7 227.7 Up 03:39:11 - 04:00:08 3284
Susanville 03:49:47 -36.1 Dark Up 45.7 229.0 Up 03:39:19 - 04:00:16 3256
Gimple 03:49:48 -36.0 Dark Up 46.0 229.0 Up 03:39:20 - 04:00:17 3229
Greenville 03:49:46 -35.9 Dark Up 46.0 228.9 Up 03:39:18 - 04:00:15 3227
Portola 03:49:52 -36.3 Dark Up 45.9 229.8 Up 03:39:23 - 04:00:20 3215
Quincy 03:49:48 -35.9 Dark Up 46.1 229.1 Up 03:39:20 - 04:00:17 3212
Reno 03:49:58 -36.8 Dark Up 45.7 230.7 Up 03:39:29 - 04:00:26 3212
Yerington 03:50:05 -37.3 Dark Up 45.6 232.0 Up 03:39:36 - 04:00:33 3187
Carson City 03:49:59 -36.8 Dark Up 45.9 231.1 Up 03:39:31 - 04:00:28 3185
Gardnerville 03:50:01 -36.9 Dark Up 46.0 231.3 Up 03:39:33 - 04:00:30 3167
Tonopah 03:50:23 -38.9 Dark Up 44.9 234.9 Up 03:39:55 - 04:00:52 3166
Hawthorne 03:50:11 -37.8 Dark Up 45.6 232.9 Up 03:39:42 - 04:00:39 3165
Lee Vining 03:50:11 -37.4 Dark Up 46.2 232.9 Up 03:39:43 - 04:00:40 3108
Indian Springs 03:50:41 -40.2 Dark Up 44.7 237.8 Up 03:40:13 - 04:01:10 3092
Beatty 03:50:33 -39.3 Dark Up 45.3 236.4 Up 03:40:04 - 04:01:01 3088
Bishop 03:50:20 -38.0 Dark Up 46.1 234.2 Up 03:39:52 - 04:00:49 3080
Henderson 03:50:49 -40.8 Dark Up 44.5 239.0 Up 03:40:20 - 04:01:17 3069
Patrick 03:51:00 -41.7 Dark Up 44.0 240.7 Up 03:40:31 - 04:01:28 3049
DCO 03:51:05 -42.3 Dark Up 43.6 241.6 Up 03:40:37 - 04:01:34 3044
Lone Pine 03:50:26 -38.2 Dark Up 46.3 235.2 Up 03:39:57 - 04:00:54 3029
Kingman/Dolan Springs 03:51:00 -41.6 Dark Up 44.2 240.7 Up 03:40:32 - 04:01:29 3026
Searchlight/Boulder City 03:50:53 -40.9 Dark Up 44.7 239.6 Up 03:40:24 - 04:01:21 3025
Laughlin/Bullhead City 03:50:57 -41.2 Dark Up 44.6 240.2 Up 03:40:29 - 04:01:26 3010
Mohave Valley 03:50:58 -41.2 Dark Up 44.7 240.4 Up 03:40:30 - 04:01:27 2989
Lake Havasu City 03:51:01 -41.4 Dark Up 44.7 241.0 Up 03:40:33 - 04:01:30 2963
Parker 03:51:04 -41.4 Dark Up 44.9 241.4 Up 03:40:36 - 04:01:33 2935
Blythe 03:51:06 -41.1 Dark Up 45.3 241.6 Up 03:40:37 - 04:01:34 2884
CPSLO 03:50:17 -36.1 Dark Up 48.8 233.5 Up 03:39:48 - 04:00:45 2852
Idyllwild 03:50:51 -39.3 Dark Up 46.9 239.3 Up 03:40:23 - 04:01:20 2834
Calipatria 03:51:03 -40.3 Dark Up 46.3 241.1 Up 03:40:34 - 04:01:31 2818
Wildwood 03:50:38 -37.7 Dark Up 48.0 237.0 Up 03:40:09 - 04:01:06 2811
Yuma 03:51:10 -41.1 Dark Up 45.8 242.4 Up 03:40:41 - 04:01:38 2807

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 523710, (2019/12/07 03:48UT)
Object            RA         Dec     mag  sep  mel
Markab         23:04:45.7 +15:12:18  2.5 10.34  33
37 Peg         22:29:57.9 +04:25:51  5.9  3.57  39
PPM 173369     22:44:05.1 +06:44:09  7.9  0.69  36
PPM 173316     22:40:34.9 +06:31:44  9.2  0.20  37
523710         22:41:21.1 +06:36:05 16.6        37
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:57:51 UT

Marc W. Buie, Southwest Research Institute

RECON