RECON: TNO occultation with 10VQ11

Event between 10VQ11 and star UC4-498-012237 with event index number of 223589

Geocentric closest approach at 2019/11/18 12:19:40 UTC

J2000 position of star is 05:22:57.3 +09:34:43
Equinox of date position of star is 05:23:56.5 +09:35:40
Stellar brightness R=15.4, use SENSEUP=128
Star is 50 degrees from the moon. Moon is 65% illuminated.
TNO apparent brightness V=21.6

[RECON map]
TNO is 40.7 AU from the Sun and 39.8 AU from the Earth.
The TNO is moving 22.8 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 453 seconds.
The 1-sigma cross-track error in the shadow position is 2461 km.
The sky-plane scale is 28878.9 km/arcsec.

The TNO has an absolute magnitude Hv=5.5
Diameter=476.4 km assuming a 5% albedo -- 20.9 sec chord
Diameter=194.5 km assuming a 30% albedo -- 8.5 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 10VQ11, (2019/11/18 12:20UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:14.9 +07:24:33  0.4  8.26  43
Bellatrix      05:26:11.9 +06:21:58  1.6  3.27  50
18 Ori         05:17:10.5 +11:21:44  5.6  2.44  51
PPM 148802     05:21:58.8 +09:44:37  6.8  0.53  50
PPM 148850     05:23:45.1 +09:14:50  9.7  0.36  50
PPM 148830     05:23:11.5 +09:43:06 10.6  0.24  50
10VQ11         05:24:02.9 +09:35:46 15.4        50
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 2.0 sigma about the mid-time.
The median site spacing is 22.9 km RECON observability=1.0 and success probability=14.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 12:17:07 -28.3 Dark Up 37.7 235.4 Up 12:02:07 - 12:32:07 3327
Tonasket 12:17:06 -28.4 Dark Up 37.8 235.6 Up 12:02:06 - 12:32:06 3306
Okanogan 12:17:05 -28.5 Dark Up 38.1 235.7 Up 12:02:05 - 12:32:05 3275
Brewster 12:17:06 -28.6 Dark Up 38.4 235.6 Up 12:02:06 - 12:32:06 3251
Manson/Chelan 12:17:06 -28.9 Dark Up 38.7 235.4 Up 12:02:06 - 12:32:06 3233
Entiat 12:17:06 -28.9 Dark Up 38.9 235.4 Up 12:02:06 - 12:32:06 3212
Wenatchee 12:17:05 -29.0 Dark Up 39.1 235.5 Up 12:02:05 - 12:32:05 3189
Ellensburg 12:17:06 -29.2 Dark Up 39.4 235.6 Up 12:02:06 - 12:32:06 3151
Yakima 12:17:05 -29.2 Dark Up 39.7 235.8 Up 12:02:05 - 12:32:05 3113
Toppenish/White Swan 12:17:05 -29.1 Dark Up 39.7 236.1 Up 12:02:05 - 12:32:05 3092
Pasco 12:17:01 -28.2 Dark Up 39.0 237.5 Up 12:02:01 - 12:32:01 3077
PNWRO 12:17:01 -28.1 Dark Up 39.0 237.9 Up 12:02:01 - 12:32:01 3052
George/Umatilla 12:17:01 -28.4 Dark Up 39.3 237.5 Up 12:02:01 - 12:32:01 3045
Goldendale 12:17:05 -29.4 Dark Up 40.2 236.1 Up 12:02:05 - 12:32:05 3041
The Dalles 12:17:06 -29.7 Dark Up 40.6 235.9 Up 12:02:06 - 12:32:06 3021
Maupin 12:17:05 -29.6 Dark Up 40.8 236.3 Up 12:02:05 - 12:32:05 2981
Madras/Culver 12:17:04 -29.7 Dark Up 41.1 236.6 Up 12:02:04 - 12:32:04 2929
Sisters 12:17:05 -30.0 Dark Up 41.5 236.4 Up 12:02:05 - 12:32:05 2898
Redmond 12:17:04 -29.7 Dark Up 41.3 236.8 Up 12:02:04 - 12:32:04 2894
Bend 12:17:04 -29.8 Dark Up 41.5 236.8 Up 12:02:04 - 12:32:04 2874
Oregon Observatory 12:17:04 -29.9 Dark Up 41.7 236.8 Up 12:02:04 - 12:32:04 2858
La Pine/Gilchrist 12:17:04 -30.0 Dark Up 41.8 236.9 Up 12:02:04 - 12:32:04 2838
North Lake 12:17:01 -29.6 Dark Up 41.7 237.9 Up 12:02:01 - 12:32:01 2794
Paisley 12:17:00 -29.3 Dark Up 41.8 238.6 Up 12:02:00 - 12:32:00 2739
Chiloquin 12:17:03 -30.3 Dark Up 42.7 237.4 Up 12:02:03 - 12:32:03 2732
Klamath Falls 12:17:03 -30.2 Dark Up 42.8 237.7 Up 12:02:03 - 12:32:03 2698
Lakeview 12:16:59 -29.2 Dark Up 41.9 239.2 Up 12:01:59 - 12:31:59 2688
Tulelake 12:17:01 -30.0 Dark Up 42.7 238.3 Up 12:02:01 - 12:32:01 2670
Cedarville 12:16:58 -29.0 Dark Up 42.1 239.9 Up 12:01:58 - 12:31:58 2623
Fall River/Burney 12:17:00 -29.9 Dark Up 43.2 239.1 Up 12:02:00 - 12:32:00 2580
Susanville 12:16:58 -29.4 Dark Up 43.0 240.3 Up 12:01:58 - 12:31:58 2514
Greenville 12:16:58 -29.6 Dark Up 43.3 240.2 Up 12:01:58 - 12:31:58 2488
Gimple 12:16:58 -29.5 Dark Up 43.3 240.3 Up 12:01:58 - 12:31:58 2487
Niwot 12:16:17 -17.7 AT Up 32.4 254.0 Up 12:01:17 - 12:31:17 2470
Quincy 12:16:58 -29.6 Dark Up 43.4 240.4 Up 12:01:58 - 12:31:58 2468
Portola 12:16:56 -29.2 Dark Up 43.2 241.0 Up 12:01:56 - 12:31:56 2453
Reno 12:16:54 -28.7 Dark Up 42.9 241.8 Up 12:01:54 - 12:31:54 2424
Carson City 12:16:54 -28.7 Dark Up 43.0 242.1 Up 12:01:54 - 12:31:54 2388
Yerington 12:16:51 -28.2 Dark Up 42.7 242.9 Up 12:01:51 - 12:31:51 2366
Gardnerville 12:16:53 -28.7 Dark Up 43.1 242.4 Up 12:01:53 - 12:31:53 2363
Hawthorne 12:16:49 -27.8 Dark Up 42.5 243.8 Up 12:01:49 - 12:31:49 2317
Tonopah 12:16:45 -26.7 Dark Up 41.7 245.5 Up 12:01:45 - 12:31:45 2266
Lee Vining 12:16:50 -28.1 Dark Up 43.1 243.8 Up 12:01:50 - 12:31:50 2262
Bishop 12:16:47 -27.5 Dark Up 42.9 245.0 Up 12:01:47 - 12:31:47 2198
Beatty 12:16:42 -26.2 Dark Up 41.9 246.8 Up 12:01:42 - 12:31:42 2146
Lone Pine 12:16:46 -27.2 Dark Up 43.0 245.9 Up 12:01:46 - 12:31:46 2119
Indian Springs 12:16:38 -25.3 Dark Up 41.2 248.0 Up 12:01:38 - 12:31:38 2110
Henderson 12:16:36 -24.7 Dark Up 40.9 249.0 Up 12:01:36 - 12:31:36 2054
Searchlight/Boulder City 12:16:35 -24.6 Dark Up 41.1 249.5 Up 12:01:35 - 12:31:35 1994
CPSLO 12:16:52 -29.2 Dark Up 45.4 244.7 Up 12:01:52 - 12:31:52 1994
Patrick 12:16:32 -23.7 Dark Up 40.3 250.4 Up 12:01:32 - 12:31:32 1987
Kingman/Dolan Springs 12:16:32 -23.9 Dark Up 40.5 250.4 Up 12:01:32 - 12:31:32 1964
Laughlin/Bullhead City 12:16:34 -24.3 Dark Up 40.9 250.0 Up 12:01:34 - 12:31:34 1963
DCO 12:16:30 -23.1 Dark Up 39.9 251.2 Up 12:01:30 - 12:31:30 1955
Mohave Valley 12:16:34 -24.3 Dark Up 41.0 250.3 Up 12:01:34 - 12:31:34 1935
Lake Havasu City 12:16:32 -24.0 Dark Up 40.9 250.8 Up 12:01:32 - 12:31:32 1892
Wildwood 12:16:44 -27.4 Dark Up 44.4 247.6 Up 12:01:44 - 12:31:44 1861
Parker 12:16:32 -23.9 Dark Up 41.0 251.1 Up 12:01:32 - 12:31:32 1856
Idyllwild 12:16:39 -25.9 Dark Up 43.0 249.5 Up 12:01:39 - 12:31:39 1818
Blythe 12:16:32 -24.1 Dark Up 41.4 251.3 Up 12:01:32 - 12:31:32 1801
Calipatria 12:16:35 -24.8 Dark Up 42.3 251.0 Up 12:01:35 - 12:31:35 1751
Yuma 12:16:32 -24.0 Dark Up 41.8 252.1 Up 12:01:32 - 12:31:32 1704

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 10VQ11, (2019/11/18 12:20UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  8.26  43
Bellatrix      05:25:07.8 +06:20:58  1.6  3.27  50
18 Ori         05:16:04.1 +11:20:29  5.6  2.44  51
PPM 148802     05:20:53.2 +09:43:30  6.8  0.53  50
PPM 148850     05:22:39.7 +09:13:46  9.7  0.36  50
PPM 148830     05:22:05.9 +09:42:01 10.6  0.24  50
10VQ11         05:22:57.3 +09:34:43 15.4        50
Positions are for J2000

Event circumstances last updated at 2017/12/07 17:06:21 UT

Marc W. Buie, Southwest Research Institute

RECON