RECON: TNO occultation with 11WG157

Event between 11WG157 and star UC4-653-016201 with event index number of 314910

Geocentric closest approach at 2019/08/13 10:16:30 UTC

J2000 position of star is 03:34:23.6 +40:26:06
Equinox of date position of star is 03:35:38.8 +40:29:49
Stellar brightness R=16.3, use SENSEUP=128
Star is 122 degrees from the moon. Moon is 96% illuminated.
TNO apparent brightness V=22.3

[RECON map]
TNO is 30.7 AU from the Sun and 30.9 AU from the Earth.
The TNO is moving 15.2 km/sec on the sky relative to the star, or, 2.4 arcsec/hr.
The 1-sigma error in the time of the event is 156 seconds.
The 1-sigma cross-track error in the shadow position is 3985 km.
The sky-plane scale is 22398.0 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=213.8 km assuming a 5% albedo -- 14.1 sec chord
Diameter=87.3 km assuming a 30% albedo -- 5.8 sec chord
Dynamical classification is 1:1
 
 
 
 
 
 

Star training set for 11WG157, (2019/08/13 10:16UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:02.9 +16:32:50  0.8 27.39 132
Algol          03:09:27.2 +41:01:47  2.1  5.00 117
PPM 068571     03:34:53.0 +39:57:52  5.8  0.56 122
PPM 046376     03:38:41.0 +40:36:05  8.5  0.58 122
PPM 046352     03:36:44.7 +40:25:32  9.2  0.21 122
PPM 046326     03:35:17.9 +40:35:35 11.3  0.12 122
11WG157        03:35:42.0 +40:29:59 16.3       122
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 4.1 km RECON observability=1.0 and success probability=7.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
CPSLO 10:15:03 -31.6 Dark Up 44.1 65.1 Up 10:01:31 - 10:28:35 -348
Klamath Falls 10:15:53 -26.3 Dark Up 46.0 71.3 Up 10:02:21 - 10:29:25 -349
Chiloquin 10:15:56 -26.1 Dark Up 46.0 71.6 Up 10:02:24 - 10:29:28 -349
Fall River/Burney 10:15:44 -27.2 Dark Up 45.8 70.3 Up 10:02:12 - 10:29:16 -355
Tulelake 10:15:51 -26.5 Dark Up 46.1 71.1 Up 10:02:19 - 10:29:23 -363
Quincy 10:15:36 -27.9 Dark Up 45.7 69.3 Up 10:02:04 - 10:29:08 -368
Greenville 10:15:38 -27.7 Dark Up 45.8 69.5 Up 10:02:06 - 10:29:10 -371
Gimple 10:15:37 -27.7 Dark Up 45.9 69.6 Up 10:02:05 - 10:29:09 -376
La Pine/Gilchrist 10:16:03 -25.0 Dark Up 46.6 72.8 Up 10:02:31 - 10:29:35 -388
Susanville 10:15:39 -27.4 Dark Up 46.1 69.9 Up 10:02:07 - 10:29:11 -392
Sisters 10:16:08 -24.5 Dark Up 46.8 73.4 Up 10:02:36 - 10:29:40 -394
Oregon Observatory 10:16:04 -24.8 Dark Up 46.7 73.1 Up 10:02:32 - 10:29:36 -395
Portola 10:15:35 -27.8 Dark Up 46.0 69.4 Up 10:02:03 - 10:29:07 -396
Bend 10:16:05 -24.6 Dark Up 46.9 73.3 Up 10:02:33 - 10:29:37 -405
North Lake 10:15:59 -25.1 Dark Up 46.9 72.7 Up 10:02:27 - 10:29:31 -416
Redmond 10:16:07 -24.4 Dark Up 47.1 73.6 Up 10:02:35 - 10:29:39 -417
Madras/Culver 10:16:09 -24.1 Dark Up 47.2 74.0 Up 10:02:37 - 10:29:41 -426
Paisley 10:15:55 -25.4 Dark Up 47.0 72.3 Up 10:02:23 - 10:29:27 -428
Carson City 10:15:29 -28.0 Dark Up 46.3 69.0 Up 10:01:57 - 10:29:01 -432
Gardnerville 10:15:28 -28.2 Dark Up 46.2 68.8 Up 10:01:56 - 10:29:00 -433
Lakeview 10:15:51 -25.8 Dark Up 47.0 71.8 Up 10:02:19 - 10:29:23 -433
Reno 10:15:32 -27.7 Dark Up 46.4 69.4 Up 10:02:00 - 10:29:04 -434
Cedarville 10:15:46 -26.3 Dark Up 46.9 71.2 Up 10:02:14 - 10:29:18 -435
Maupin 10:16:13 -23.6 Dark Up 47.4 74.6 Up 10:02:41 - 10:29:45 -438
The Dalles 10:16:16 -23.3 Dark Up 47.4 75.0 Up 10:02:44 - 10:29:48 -440
Goldendale 10:16:17 -22.9 Dark Up 47.7 75.4 Up 10:02:45 - 10:29:49 -464
Lee Vining 10:15:20 -28.7 Dark Up 46.3 68.0 Up 10:01:48 - 10:28:52 -465
Yerington 10:15:27 -27.9 Dark Up 46.7 69.0 Up 10:01:55 - 10:28:59 -470
Wildwood 10:14:52 -31.5 Dark Up 45.0 64.5 Up 10:01:20 - 10:28:24 -481
Yakima 10:16:22 -22.2 Dark Up 48.1 76.4 Up 10:02:50 - 10:29:54 -493
Toppenish/White Swan 10:16:21 -22.3 Dark Up 48.2 76.3 Up 10:02:49 - 10:29:53 -499
Hawthorne 10:15:23 -28.0 Dark Up 46.9 68.7 Up 10:01:51 - 10:28:55 -500
Ellensburg 10:16:26 -21.8 Dark Up 48.2 76.9 Up 10:02:54 - 10:29:58 -502
Bishop 10:15:15 -28.8 Dark Up 46.6 67.6 Up 10:01:43 - 10:28:47 -508
Wenatchee 10:16:28 -21.4 Dark Up 48.5 77.5 Up 10:02:56 - 10:30:00 -523
Lone Pine 10:15:09 -29.3 Dark Up 46.5 67.0 Up 10:01:37 - 10:28:41 -526
Entiat 10:16:30 -21.2 Dark Up 48.6 77.8 Up 10:02:58 - 10:30:02 -533
Manson/Chelan 10:16:31 -20.9 Dark Up 48.7 78.1 Up 10:02:59 - 10:30:03 -542
George/Umatilla 10:16:16 -22.3 Dark Up 48.8 76.3 Up 10:02:44 - 10:29:48 -549
Brewster 10:16:32 -20.6 Dark Up 49.0 78.5 Up 10:03:00 - 10:30:04 -566
Pasco 10:16:18 -21.9 Dark Up 49.0 76.8 Up 10:02:46 - 10:29:50 -568
PNWRO 10:16:16 -22.0 Dark Up 49.1 76.7 Up 10:02:44 - 10:29:48 -577
Okanogan 10:16:34 -20.3 Dark Up 49.2 79.0 Up 10:03:02 - 10:30:06 -582
Tonopah 10:15:18 -27.7 Dark Up 47.7 68.7 Up 10:01:46 - 10:28:50 -590
Tonasket 10:16:36 -20.0 Dark Up 49.3 79.5 Up 10:03:04 - 10:30:08 -598
Oliver 10:16:40 -19.6 Dark Up 49.4 79.9 Up 10:03:08 - 10:30:12 -601
Oroville 10:16:38 -19.8 Dark Up 49.4 79.7 Up 10:03:06 - 10:30:10 -602
Okanagan Falls 10:16:41 -19.5 Dark Up 49.4 80.1 Up 10:03:09 - 10:30:13 -604
Summerland 10:16:45 -19.1 Dark Up 49.4 80.6 Up 10:03:13 - 10:30:17 -606
Anarchist Mountain Observatory 10:16:38 -19.7 Dark Up 49.4 79.9 Up 10:03:06 - 10:30:10 -608
Penticton 10:16:42 -19.3 Dark Up 49.4 80.3 Up 10:03:10 - 10:30:14 -609
Idyllwild 10:14:47 -30.8 Dark Up 46.3 64.5 Up 10:01:15 - 10:28:19 -611
Beatty 10:15:09 -28.4 Dark Up 47.6 67.6 Up 10:01:37 - 10:28:41 -614
Kelowna 10:16:44 -19.0 Dark Up 49.6 80.9 Up 10:03:12 - 10:30:16 -626
Indian Springs 10:15:06 -28.1 Dark Up 48.3 67.6 Up 10:01:34 - 10:28:38 -687
Calipatria 10:14:41 -30.6 Dark Up 46.9 64.1 Up 10:01:09 - 10:28:13 -696
Henderson 10:15:01 -28.1 Dark Up 48.6 67.2 Up 10:01:29 - 10:28:33 -734
Searchlight/Boulder City 10:14:57 -28.5 Dark Up 48.4 66.6 Up 10:01:25 - 10:28:29 -737
Yuma 10:14:37 -30.4 Dark Up 47.4 63.9 Up 10:01:05 - 10:28:09 -761
Laughlin/Bullhead City 10:14:55 -28.5 Dark Up 48.5 66.4 Up 10:01:23 - 10:28:27 -762
Blythe 10:14:44 -29.7 Dark Up 47.8 64.8 Up 10:01:12 - 10:28:16 -762
Mohave Valley 10:14:53 -28.7 Dark Up 48.4 66.1 Up 10:01:21 - 10:28:25 -762
Lake Havasu City 10:14:50 -28.9 Dark Up 48.4 65.7 Up 10:01:18 - 10:28:22 -780
Parker 10:14:47 -29.1 Dark Up 48.3 65.4 Up 10:01:15 - 10:28:19 -783
Kingman/Dolan Springs 10:14:55 -28.2 Dark Up 48.9 66.5 Up 10:01:23 - 10:28:27 -798
Patrick 10:14:56 -28.0 Dark Up 49.1 66.8 Up 10:01:24 - 10:28:28 -812
DCO 10:14:53 -27.8 Dark Up 49.5 66.6 Up 10:01:21 - 10:28:25 -863
Niwot 10:15:24 -19.7 Dark Down 57.3 75.1 Up 10:01:52 - 10:28:56 -1430

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 11WG157, (2019/08/13 10:16UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 27.39 132
Algol          03:08:10.1 +40:57:20  2.1  5.00 117
PPM 068571     03:33:35.0 +39:53:58  5.8  0.56 122
PPM 046376     03:37:22.4 +40:32:17  8.5  0.58 122
PPM 046352     03:35:26.3 +40:21:41  9.2  0.21 122
PPM 046326     03:33:59.5 +40:31:42 11.3  0.12 122
11WG157        03:34:23.6 +40:26:06 16.3       122
Positions are for J2000

Event circumstances last updated at 2018/10/24 21:50:51 UT

Marc W. Buie, Southwest Research Institute

RECON