RECON: TNO occultation with 14WB509

Event between 14WB509 and star GA1120:00303760 with event index number of 219405

Geocentric closest approach at 2019/10/31 06:47:29 UTC

J2000 position of star is 02:39:18.3 +23:34:18
Equinox of date position of star is 02:40:24.2 +23:39:11
Stellar brightness G=15.4, use SENSEUP=128
Star is 145 degrees from the moon. Moon is 13% illuminated.
TNO apparent brightness V=22.2

[RECON map]
TNO is 35.7 AU from the Sun and 34.7 AU from the Earth.
The TNO is moving 24.5 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 73 seconds.
The 1-sigma cross-track error in the shadow position is 1476 km.
The sky-plane scale is 25197.5 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=279.3 km assuming a 5% albedo -- 11.4 sec chord
Diameter=114.0 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 14WB509, (2019/10/31 06:47UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:03.7 +16:32:51  0.8 28.23 170
Hamal          02:08:17.7 +23:33:19  2.0  7.36 137
32Nu Ari       02:39:56.8 +22:02:46  5.4  1.61 144
PPM 091844     02:38:57.5 +23:12:48  8.5  0.56 144
PPM 091865     02:40:10.1 +23:38:50  9.5  0.06 145
14WB509        02:40:26.8 +23:39:23 15.4       145
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 20.5 km RECON observability=1.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 06:47:52 -52.5 Dark Down 60.1 144.7 Up 06:41:19 - 06:54:24 9099
Kelowna 06:47:50 -52.5 Dark Down 60.2 145.4 Up 06:41:18 - 06:54:23 9093
Penticton 06:47:52 -52.8 Dark Down 60.4 144.7 Up 06:41:19 - 06:54:24 9065
Okanagan Falls 06:47:52 -53.0 Dark Down 60.6 144.5 Up 06:41:20 - 06:54:25 9049
Oliver 06:47:52 -53.1 Dark Down 60.7 144.4 Up 06:41:20 - 06:54:25 9034
Anarchist Mountain Observatory 06:47:52 -53.3 Dark Down 60.9 144.5 Up 06:41:20 - 06:54:25 9014
Oroville 06:47:53 -53.4 Dark Down 60.9 144.3 Up 06:41:20 - 06:54:25 9009
Tonasket 06:47:52 -53.6 Dark Down 61.1 144.1 Up 06:41:20 - 06:54:25 8989
Okanogan 06:47:54 -53.9 Dark Down 61.3 143.5 Up 06:41:22 - 06:54:27 8963
Brewster 06:47:55 -54.1 Dark Down 61.5 142.8 Up 06:41:23 - 06:54:28 8944
Manson/Chelan 06:47:56 -54.2 Dark Down 61.5 142.0 Up 06:41:24 - 06:54:29 8936
Entiat 06:47:58 -54.4 Dark Down 61.6 141.6 Up 06:41:25 - 06:54:30 8918
Wenatchee 06:47:58 -54.6 Dark Down 61.8 141.1 Up 06:41:26 - 06:54:31 8898
Ellensburg 06:48:00 -54.9 Dark Down 62.0 140.3 Up 06:41:27 - 06:54:32 8867
Yakima 06:48:01 -55.3 Dark Down 62.3 139.8 Up 06:41:28 - 06:54:33 8831
Toppenish/White Swan 06:48:00 -55.5 Dark Down 62.6 139.8 Up 06:41:28 - 06:54:33 8807
Goldendale 06:48:03 -55.9 Dark Down 62.8 138.4 Up 06:41:30 - 06:54:35 8769
The Dalles 06:48:04 -56.0 Dark Down 62.8 137.4 Up 06:41:32 - 06:54:37 8760
Pasco 06:47:58 -56.0 Dark Down 63.2 141.9 Up 06:41:25 - 06:54:30 8760
George/Umatilla 06:47:58 -56.2 Dark Down 63.4 141.1 Up 06:41:26 - 06:54:31 8735
PNWRO 06:47:57 -56.3 Dark Down 63.5 142.0 Up 06:41:25 - 06:54:30 8730
Maupin 06:48:05 -56.4 Dark Down 63.2 137.1 Up 06:41:33 - 06:54:38 8719
Madras/Culver 06:48:06 -56.8 Dark Down 63.5 136.3 Up 06:41:34 - 06:54:39 8670
Sisters 06:48:08 -57.0 Dark Down 63.6 135.0 Up 06:41:36 - 06:54:41 8653
Redmond 06:48:07 -57.1 Dark Down 63.8 135.7 Up 06:41:35 - 06:54:40 8639
Bend 06:48:08 -57.3 Dark Down 63.9 135.1 Up 06:41:36 - 06:54:41 8623
Oregon Observatory 06:48:09 -57.4 Dark Down 63.9 134.7 Up 06:41:36 - 06:54:41 8611
La Pine/Gilchrist 06:48:09 -57.6 Dark Down 64.0 134.3 Up 06:41:37 - 06:54:42 8594
North Lake 06:48:08 -58.1 Dark Down 64.7 134.7 Up 06:41:36 - 06:54:41 8536
Chiloquin 06:48:13 -58.4 Dark Down 64.6 132.0 Up 06:41:40 - 06:54:45 8503
Paisley 06:48:09 -58.8 Dark Down 65.2 134.5 Up 06:41:36 - 06:54:41 8474
Klamath Falls 06:48:13 -58.7 Dark Down 64.9 131.6 Up 06:41:41 - 06:54:46 8468
Tulelake 06:48:13 -59.1 Dark Down 65.2 131.7 Up 06:41:40 - 06:54:45 8434
Lakeview 06:48:09 -59.3 Dark Down 65.7 134.0 Up 06:41:37 - 06:54:42 8420
Cedarville 06:48:10 -59.9 Dark Down 66.2 133.3 Up 06:41:38 - 06:54:43 8353
Fall River/Burney 06:48:15 -59.9 Dark Down 65.9 130.3 Up 06:41:42 - 06:54:47 8346
Susanville 06:48:14 -60.7 Dark Down 66.7 130.5 Up 06:41:41 - 06:54:46 8263
Greenville 06:48:15 -60.9 Dark Down 66.7 129.5 Up 06:41:43 - 06:54:48 8246
Gimple 06:48:15 -60.9 Dark Down 66.8 129.7 Up 06:41:42 - 06:54:47 8243
Quincy 06:48:15 -61.0 Dark Down 66.9 129.2 Up 06:41:43 - 06:54:48 8227
Portola 06:48:14 -61.3 Dark Down 67.2 129.8 Up 06:41:42 - 06:54:47 8199
Reno 06:48:13 -61.8 Dark Down 67.8 130.5 Up 06:41:40 - 06:54:45 8153
Carson City 06:48:14 -62.1 Dark Down 68.0 129.9 Up 06:41:42 - 06:54:47 8118
Gardnerville 06:48:14 -62.4 Dark Down 68.2 129.5 Up 06:41:41 - 06:54:46 8093
Yerington 06:48:12 -62.5 Dark Down 68.5 130.7 Up 06:41:40 - 06:54:45 8079
Hawthorne 06:48:11 -63.1 Dark Down 69.1 130.8 Up 06:41:39 - 06:54:44 8017
Lee Vining 06:48:14 -63.4 Dark Down 69.2 128.7 Up 06:41:41 - 06:54:46 7978
Tonopah 06:48:08 -64.0 Dark Down 70.3 132.7 Up 06:41:35 - 06:54:40 7927
Bishop 06:48:13 -64.2 Dark Down 70.0 128.9 Up 06:41:40 - 06:54:45 7897
Lone Pine 06:48:13 -65.0 Dark Down 70.7 127.9 Up 06:41:41 - 06:54:46 7811
Beatty 06:48:08 -65.2 Dark Down 71.3 131.2 Up 06:41:36 - 06:54:41 7799
Niwot 06:47:25 -63.9 Dark Down 73.1 167.8 Up 06:40:53 - 06:53:58 7793
SwRI 06:47:26 -64.0 Dark Down 73.2 167.4 Up 06:40:53 - 06:53:58 7785
CPSLO 06:48:24 -65.1 Dark Down 69.7 120.2 Up 06:41:52 - 06:54:57 7770
Indian Springs 06:48:05 -65.9 Dark Down 72.2 132.8 Up 06:41:32 - 06:54:37 7732
Henderson 06:48:04 -66.6 Dark Down 72.9 133.2 Up 06:41:31 - 06:54:36 7658
Searchlight/Boulder City 06:48:05 -67.1 Dark Down 73.4 132.0 Up 06:41:32 - 06:54:37 7598
Wildwood 06:48:19 -67.0 Dark Down 71.8 120.8 Up 06:41:47 - 06:54:52 7581
Patrick 06:48:01 -67.5 Dark Down 74.0 134.4 Up 06:41:29 - 06:54:34 7560
Laughlin/Bullhead City 06:48:04 -67.5 Dark Down 73.8 132.1 Up 06:41:32 - 06:54:37 7557
Kingman/Dolan Springs 06:48:02 -67.7 Dark Down 74.1 133.4 Up 06:41:29 - 06:54:34 7543
Mohave Valley 06:48:05 -67.8 Dark Down 74.0 131.4 Up 06:41:32 - 06:54:37 7530
DCO 06:47:59 -68.0 Dark Down 74.6 135.5 Up 06:41:27 - 06:54:32 7507
Idyllwild 06:48:14 -68.1 Dark Down 73.3 123.5 Up 06:41:41 - 06:54:46 7482
Lake Havasu City 06:48:04 -68.2 Dark Down 74.4 130.9 Up 06:41:32 - 06:54:37 7482
Parker 06:48:05 -68.6 Dark Down 74.6 130.0 Up 06:41:33 - 06:54:38 7445
Blythe 06:48:07 -69.0 Dark Down 74.8 127.8 Up 06:41:34 - 06:54:39 7402
Calipatria 06:48:11 -69.1 Dark Down 74.4 124.2 Up 06:41:38 - 06:54:43 7382
Yuma 06:48:09 -69.8 Dark Down 75.3 125.0 Up 06:41:36 - 06:54:41 7309

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 14WB509, (2019/10/31 06:47UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 28.23 170
Hamal          02:07:10.7 +23:27:42  2.0  7.36 137
32Nu Ari       02:38:49.0 +21:57:41  5.4  1.61 144
PPM 091844     02:37:49.3 +23:07:42  8.5  0.56 144
PPM 091865     02:39:01.7 +23:33:45  9.5  0.06 145
14WB509        02:39:18.3 +23:34:18 15.4       145
Positions are for J2000

Event circumstances last updated at 2019/01/29 21:42:08 UT

Marc W. Buie, Southwest Research Institute

RECON