RECON: TNO occultation with 13JP64

Event between 13JP64 and star UC4-389-068328 with event index number of 71233

Geocentric closest approach at 2017/05/18 05:24:42 UTC

J2000 position of star is 16:31:57.4 -12:23:15
Equinox of date position of star is 16:32:53.8 -12:25:21
Stellar brightness R=16.2
Star is 70 degrees from the moon. Moon is 58% illuminated.
TNO apparent brightness V=23.9

[RECON map]
TNO is 34.6 AU from the Sun and 33.6 AU from the Earth.
The TNO is moving 23.1 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 1516 seconds.
The 1-sigma cross-track error in the shadow position is 3303 km.
The sky-plane scale is 24385.5 km/arcsec.

The TNO has an absolute magnitude Hv=8.5
Diameter=118.0 km assuming a 5% albedo -- 5.1 sec chord
Diameter=48.2 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 13JP64, (2017/05/18 05:25UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:28.5 -26:28:09  0.9 14.06  69
13Zet Oph      16:38:07.0 -10:36:04  2.6  2.22  69
PPM 231511     16:19:59.4 -14:54:50  5.8  4.01  73
PPM 231840     16:34:29.4 -12:35:44  7.0  0.42  70
PPM 231797     16:32:18.0 -12:33:03  9.4  0.20  70
13JP64         16:32:55.6 -12:25:25 16.2        70
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 0.6 sigma about the mid-time.
The median site spacing is 19.7 km RECON observability=0.4 and success probability=0.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 05:27:48 -14.1 AT Down 14.8 129.9 Really Low 05:12:48 - 05:42:48 11283
Tonasket 05:27:48 -14.3 AT Down 15.0 129.9 Really Low 05:12:48 - 05:42:48 11266
Okanogan 05:27:49 -14.5 AT Down 15.1 129.7 Really Low 05:12:49 - 05:42:49 11238
Brewster 05:27:50 -14.7 AT Down 15.2 129.5 Really Low 05:12:50 - 05:42:50 11213
Manson/Chelan 05:27:51 -14.7 AT Down 15.1 129.1 Really Low 05:12:51 - 05:42:51 11189
Entiat 05:27:53 -14.9 AT Down 15.2 129.0 Really Low 05:12:53 - 05:42:53 11171
Wenatchee 05:27:52 -15.0 AT Down 15.3 128.9 Really Low 05:12:52 - 05:42:52 11150
Gimple 05:26:40 40.1 Sun up Down -38.3 218.0 Not Up 05:11:40 - 05:41:40 11115
Ellensburg 05:27:54 -15.3 AT Down 15.5 128.6 Really Low 05:12:54 - 05:42:54 11113
Pasco 05:27:52 -16.4 AT Down 16.7 129.6 Really Low 05:12:52 - 05:42:52 11091
Yakima 05:27:55 -15.6 AT Down 15.7 128.5 Really Low 05:12:55 - 05:42:55 11082
PNWRO 05:27:53 -16.7 AT Down 17.0 129.8 Really Low 05:12:53 - 05:42:53 11077
Toppenish/White Swan 05:27:54 -15.8 AT Down 16.0 128.6 Really Low 05:12:54 - 05:42:54 11070
George/Umatilla 05:27:55 -16.6 AT Down 16.8 129.4 Really Low 05:12:55 - 05:42:55 11060
Goldendale 05:27:56 -16.1 AT Down 16.1 128.1 Really Low 05:12:56 - 05:42:56 11017
The Dalles 05:27:59 -16.1 AT Down 16.0 127.7 Really Low 05:12:59 - 05:42:59 10991
Niwot 05:27:27 -26.8 Dark Down 28.2 140.3 Low 05:12:27 - 05:42:27 10972
Maupin 05:27:58 -16.5 AT Down 16.3 127.7 Really Low 05:12:58 - 05:42:58 10961
Madras/Culver 05:28:00 -16.9 AT Down 16.7 127.6 Really Low 05:13:00 - 05:43:00 10917
Redmond 05:28:00 -17.2 AT Down 16.8 127.5 Really Low 05:13:00 - 05:43:00 10887
Sisters 05:28:01 -17.0 AT Down 16.6 127.1 Really Low 05:13:01 - 05:43:01 10880
Bend 05:28:01 -17.3 AT Down 16.9 127.3 Really Low 05:13:01 - 05:43:01 10867
Oregon Observatory 05:28:01 -17.4 AT Down 16.9 127.1 Really Low 05:13:01 - 05:43:01 10850
La Pine/Gilchrist 05:28:02 -17.5 AT Down 17.0 127.0 Really Low 05:13:02 - 05:43:02 10832
North Lake 05:28:02 -18.1 Dark Down 17.6 127.4 Really Low 05:13:02 - 05:43:02 10812
Paisley 05:28:02 -18.7 Dark Down 18.2 127.6 Really Low 05:13:02 - 05:43:02 10777
Lakeview 05:28:02 -19.2 Dark Down 18.6 127.6 Really Low 05:13:02 - 05:43:02 10741
Chiloquin 05:28:04 -18.2 Dark Down 17.5 126.5 Really Low 05:13:04 - 05:43:04 10733
Klamath Falls 05:28:04 -18.5 Dark Down 17.7 126.5 Really Low 05:13:04 - 05:43:04 10707
Tulelake 05:28:06 -18.9 Dark Down 18.1 126.6 Really Low 05:13:06 - 05:43:06 10693
Cedarville 05:28:03 -19.8 Dark Down 19.1 127.6 Really Low 05:13:03 - 05:43:03 10691
Fall River/Burney 05:28:06 -19.6 Dark Down 18.7 126.5 Really Low 05:13:06 - 05:43:06 10620
Susanville 05:28:05 -20.5 Dark Down 19.5 126.9 Really Low 05:13:05 - 05:43:05 10587
Greenville 05:28:06 -20.6 Dark Down 19.5 126.6 Really Low 05:13:06 - 05:43:06 10556
Portola 05:28:06 -21.0 Dark Down 20.0 126.9 Really Low 05:13:06 - 05:43:06 10541
Quincy 05:28:06 -20.7 Dark Down 19.6 126.5 Really Low 05:13:06 - 05:43:06 10539
Reno 05:28:04 -21.6 Dark Down 20.5 127.3 Low 05:13:04 - 05:43:04 10536
Yerington 05:28:04 -22.3 Dark Down 21.3 127.7 Low 05:13:04 - 05:43:04 10506
Carson City 05:28:05 -21.9 Dark Down 20.8 127.2 Low 05:13:05 - 05:43:05 10506
Gardnerville 05:28:05 -22.1 Dark Down 20.9 127.2 Low 05:13:05 - 05:43:05 10487
Hawthorne 05:28:03 -22.9 Dark Down 21.9 128.0 Low 05:13:03 - 05:43:03 10481
Tonopah 05:28:02 -24.0 Dark Down 23.0 129.0 Low 05:13:02 - 05:43:02 10480
Lee Vining 05:28:07 -23.2 Dark Down 21.9 127.4 Low 05:13:07 - 05:43:07 10420
Indian Springs 05:27:59 -25.9 Dark Down 24.9 129.7 Low 05:12:59 - 05:42:59 10395
Beatty 05:28:02 -25.1 Dark Down 24.0 129.0 Low 05:13:02 - 05:43:02 10393
Bishop 05:28:04 -24.0 Dark Down 22.7 127.8 Low 05:13:04 - 05:43:04 10388
Henderson 05:27:59 -26.6 Dark Down 25.7 130.1 Low 05:12:59 - 05:42:59 10369
Patrick 05:27:56 -27.6 Dark Down 26.8 130.8 Low 05:12:56 - 05:42:56 10346
DCO 05:27:55 -28.2 Dark Down 27.4 131.3 Low 05:12:55 - 05:42:55 10340
Lone Pine 05:28:04 -24.7 Dark Down 23.4 127.8 Low 05:13:04 - 05:43:04 10332
Kingman/Dolan Springs 05:27:57 -27.7 Dark Down 26.8 130.6 Low 05:12:57 - 05:42:57 10322
Searchlight/Boulder City 05:27:59 -27.1 Dark Down 26.1 130.0 Low 05:12:59 - 05:42:59 10321
Laughlin/Bullhead City 05:27:58 -27.5 Dark Down 26.5 130.1 Low 05:12:58 - 05:42:58 10304
Mohave Valley 05:27:59 -27.8 Dark Down 26.7 130.0 Low 05:12:59 - 05:42:59 10281
Lake Havasu City 05:27:58 -28.2 Dark Down 27.1 130.1 Low 05:12:58 - 05:42:58 10253
Parker 05:27:59 -28.5 Dark Down 27.3 130.0 Low 05:12:59 - 05:42:59 10223
Blythe 05:28:00 -28.8 Dark Down 27.5 129.5 Low 05:13:00 - 05:43:00 10168
CPSLO 05:28:12 -24.5 Dark Down 22.5 125.3 Low 05:13:12 - 05:43:12 10145
Idyllwild 05:28:05 -27.7 Dark Down 26.0 127.8 Low 05:13:05 - 05:43:05 10118
Calipatria 05:28:03 -28.8 Dark Down 27.2 128.6 Low 05:13:03 - 05:43:03 10097
Wildwood 05:28:10 -26.5 Dark Down 24.6 126.5 Low 05:13:10 - 05:43:10 10095
Yuma 05:28:01 -29.6 Dark Down 28.1 129.1 Low 05:13:01 - 05:43:01 10085

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 13JP64, (2017/05/18 05:25UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:55  0.9 14.06  69
13Zet Oph      16:37:09.6 -10:34:01  2.6  2.22  69
PPM 231511     16:19:00.4 -14:52:22  5.8  4.01  73
PPM 231840     16:33:31.2 -12:33:37  7.0  0.42  70
PPM 231797     16:31:19.8 -12:30:53  9.4  0.20  70
13JP64         16:31:57.4 -12:23:15 16.2        70
Positions are for J2000

Event circumstances last updated at 2016/11/01 18:05:10 UT

Marc W. Buie, Southwest Research Institute

RECON