RECON: TNO occultation with 136120

Event between (136120) 03LG7 and star GA0760:08947452 with event index number of 153706

Geocentric closest approach at 2018/09/12 03:36:24 UTC

J2000 position of star is 17:42:56.1 -13:16:08
Equinox of date position of star is 17:43:58.6 -13:16:34
Stellar brightness G=16.0, use SENSEUP=128
Star is 64 degrees from the moon. Moon is 8% illuminated.
TNO apparent brightness V=23.7

[RECON map]
TNO is 36.4 AU from the Sun and 36.3 AU from the Earth.
The TNO is moving 4.2 km/sec on the sky relative to the star, or, 0.6 arcsec/hr.
The 1-sigma error in the time of the event is 2494 seconds.
The 1-sigma cross-track error in the shadow position is 5835 km.
The sky-plane scale is 26293.1 km/arcsec.

The TNO has an absolute magnitude Hv=7.9
Diameter=158.5 km assuming a 5% albedo -- 37.5 sec chord
Diameter=64.7 km assuming a 30% albedo -- 15.3 sec chord
Dynamical classification is 3:1EE
 
 
 
 
 
 

Star training set for 136120, (2018/09/12 03:36UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:33.4 -26:28:19  0.9 21.68  49
35Eta Oph      17:11:27.1 -15:44:48  2.6  8.25  56
56Omi Ser      17:42:28.0 -12:53:01  4.4  0.54  63
PPM 233465     17:42:49.0 -13:19:23  8.0  0.29  64
PPM 233484     17:43:25.7 -13:14:22  9.7  0.14  64
136120         17:43:59.5 -13:16:35 16.0        64
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 0.4 sigma about the mid-time.
The median site spacing is 16.6 km RECON observability=0.3 and success probability=4.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Niwot 03:25:45 -24.4 Dark Down 29.1 215.7 Low 03:10:45 - 03:40:45 316
DCO 03:25:45 -20.8 Dark Down 36.7 209.1 Up 03:10:45 - 03:40:45 -234
Patrick 03:25:30 -20.1 Dark Up 36.7 208.2 Up 03:10:30 - 03:40:30 -277
Kingman/Dolan Springs 03:25:34 -20.1 Dark Up 37.0 208.0 Up 03:10:34 - 03:40:34 -294
Lake Havasu City 03:25:44 -20.1 Dark Up 37.7 208.0 Up 03:10:44 - 03:40:44 -324
Parker 03:25:50 -20.3 Dark Up 38.0 208.2 Up 03:10:50 - 03:40:50 -328
Laughlin/Bullhead City 03:25:25 -19.7 Dark Up 37.2 207.4 Up 03:10:25 - 03:40:25 -330
Mohave Valley 03:25:34 -19.8 Dark Up 37.4 207.6 Up 03:10:34 - 03:40:34 -335
Henderson 03:25:06 -19.0 Dark Up 36.6 206.6 Up 03:10:06 - 03:40:06 -344
Searchlight/Boulder City 03:25:18 -19.3 Dark Up 37.1 206.9 Up 03:10:18 - 03:40:18 -350
Blythe 03:25:57 -20.3 Dark Up 38.5 208.1 Up 03:10:57 - 03:40:57 -359
Yuma 03:26:15 -20.6 Dark Up 39.3 208.5 Up 03:11:15 - 03:41:15 -379
Indian Springs 03:24:50 -18.2 Dark Up 36.4 205.5 Up 03:09:50 - 03:39:50 -383
Calipatria 03:25:55 -19.7 Dark Up 39.3 207.2 Up 03:10:55 - 03:40:55 -435
Beatty 03:24:30 -17.2 AT Up 36.5 204.1 Up 03:09:30 - 03:39:30 -453
Tonopah 03:24:04 -16.4 AT Up 35.6 203.1 Up 03:09:04 - 03:39:04 -465
PNWRO 03:21:30 -12.2 AT Up 28.8 198.8 Low 03:06:30 - 03:36:30 -474
Oroville 03:20:42 -10.7 CT Up 26.2 197.5 Low 03:05:42 - 03:35:42 -482
Tonasket 03:20:45 -10.8 CT Up 26.4 197.6 Low 03:05:45 - 03:35:45 -484
Penticton 03:20:34 -10.4 CT Up 25.6 197.2 Low 03:05:34 - 03:35:34 -485
Pasco 03:21:26 -11.9 CT Up 28.6 198.5 Low 03:06:26 - 03:36:26 -486
Okanogan 03:20:48 -10.8 CT Up 26.8 197.5 Low 03:05:48 - 03:35:48 -495
George/Umatilla 03:21:26 -11.9 CT Up 29.0 198.3 Low 03:06:26 - 03:36:26 -502
Idyllwild 03:25:28 -18.5 Dark Up 39.3 205.5 Up 03:10:28 - 03:40:28 -508
Brewster 03:20:54 -10.8 CT Up 27.0 197.3 Low 03:05:54 - 03:35:54 -509
Manson/Chelan 03:20:51 -10.6 CT Up 27.3 196.9 Low 03:05:51 - 03:35:51 -533
Entiat 03:20:51 -10.7 CT Up 27.5 196.9 Low 03:05:51 - 03:35:51 -540
Wenatchee 03:20:55 -10.7 CT Up 27.8 196.8 Low 03:05:55 - 03:35:55 -548
Lone Pine 03:24:20 -16.3 AT Up 37.2 202.7 Up 03:09:20 - 03:39:20 -549
Hawthorne 03:23:36 -15.1 AT Up 35.6 201.3 Up 03:08:36 - 03:38:36 -555
Bishop 03:24:01 -15.8 AT Up 36.6 202.0 Up 03:09:01 - 03:39:01 -559
Toppenish/White Swan 03:21:09 -11.0 CT Up 28.8 197.0 Low 03:06:09 - 03:36:09 -563
Ellensburg 03:20:58 -10.7 CT Up 28.2 196.7 Low 03:05:58 - 03:35:58 -565
Yakima 03:21:06 -10.8 CT Up 28.6 196.8 Low 03:06:06 - 03:36:06 -571
Yerington 03:23:22 -14.6 AT Up 35.4 200.5 Up 03:08:22 - 03:38:22 -584
Goldendale 03:21:13 -10.9 CT Up 29.4 196.6 Low 03:06:13 - 03:36:13 -596
Lee Vining 03:23:43 -15.0 AT Up 36.3 200.9 Up 03:08:43 - 03:38:43 -599
Cedarville 03:22:29 -12.9 AT Up 33.3 198.5 Up 03:07:29 - 03:37:29 -612
Lakeview 03:22:17 -12.5 AT Up 32.7 198.1 Up 03:07:17 - 03:37:17 -614
Paisley 03:22:05 -12.2 AT Up 32.3 197.7 Up 03:07:05 - 03:37:05 -619
Maupin 03:21:19 -10.9 CT Up 30.1 196.5 Up 03:06:19 - 03:36:19 -620
Reno 03:23:05 -13.9 AT Up 35.0 199.5 Up 03:08:05 - 03:38:05 -620
The Dalles 03:21:13 -10.7 CT Up 29.7 196.3 Low 03:06:13 - 03:36:13 -621
Carson City 03:23:12 -14.0 AT Up 35.4 199.6 Up 03:08:12 - 03:38:12 -625
Gardnerville 03:23:15 -14.1 AT Up 35.6 199.8 Up 03:08:15 - 03:38:15 -626
Madras/Culver 03:21:28 -11.1 CT Up 30.6 196.6 Up 03:06:28 - 03:36:28 -630
North Lake 03:21:51 -11.7 CT Up 31.9 197.2 Up 03:06:51 - 03:36:51 -635
Wildwood 03:25:00 -16.8 AT Up 39.6 203.0 Up 03:10:00 - 03:40:00 -637
Redmond 03:21:36 -11.2 CT Up 30.9 196.6 Up 03:06:36 - 03:36:36 -638
Bend 03:21:34 -11.2 CT Up 31.2 196.5 Up 03:06:34 - 03:36:34 -650
Portola 03:22:51 -13.2 AT Up 35.0 198.6 Up 03:07:51 - 03:37:51 -660
Oregon Observatory 03:21:40 -11.1 CT Up 31.4 196.4 Up 03:06:40 - 03:36:40 -661
Susanville 03:22:40 -12.9 AT Up 34.5 198.2 Up 03:07:40 - 03:37:40 -663
Sisters 03:21:30 -10.9 CT Up 31.0 196.1 Up 03:06:30 - 03:36:30 -663
La Pine/Gilchrist 03:21:37 -11.2 CT Up 31.6 196.3 Up 03:06:37 - 03:36:37 -668
Gimple 03:22:47 -12.8 AT Up 34.8 198.1 Up 03:07:47 - 03:37:47 -682
Greenville 03:22:42 -12.8 AT Up 34.8 198.0 Up 03:07:42 - 03:37:42 -688
Quincy 03:22:50 -12.9 AT Up 35.0 198.0 Up 03:07:50 - 03:37:50 -691
Tulelake 03:22:05 -11.8 CT Up 33.2 196.8 Up 03:07:05 - 03:37:05 -693
Fall River/Burney 03:22:23 -12.1 AT Up 34.0 197.2 Up 03:07:23 - 03:37:23 -702
Chiloquin 03:21:53 -11.3 CT Up 32.7 196.2 Up 03:06:53 - 03:36:53 -708
Klamath Falls 03:22:00 -11.4 CT Up 33.0 196.4 Up 03:07:00 - 03:37:00 -709
CPSLO 03:24:12 -14.7 AT Up 39.2 199.9 Up 03:09:12 - 03:39:12 -762

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 136120, (2018/09/12 03:36UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 21.68  49
35Eta Oph      17:10:22.7 -15:43:29  2.6  8.25  56
56Omi Ser      17:41:24.8 -12:52:32  4.4  0.54  63
PPM 233465     17:41:45.6 -13:18:54  8.0  0.29  64
PPM 233484     17:42:22.3 -13:13:54  9.7  0.14  64
136120         17:42:56.1 -13:16:08 16.0        64
Positions are for J2000

Event circumstances last updated at 2018/06/05 16:25:10 UT

Marc W. Buie, Southwest Research Institute

RECON