RECON: TNO occultation with 120347

Event between (120347) Salacia and star GA1120:16374808 with event index number of 215894

Geocentric closest approach at 2019/10/08 05:56:59 UTC

J2000 position of star is 23:30:45.7 +23:27:11
Equinox of date position of star is 23:31:44.5 +23:33:40
Stellar brightness G=15.5, use SENSEUP=128
Star is 56 degrees from the moon. Moon is 74% illuminated.
TNO apparent brightness V=20.6

[RECON map]
TNO is 44.9 AU from the Sun and 44.0 AU from the Earth.
The TNO is moving 25.0 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 160 seconds.
The 1-sigma cross-track error in the shadow position is 3829 km.
The sky-plane scale is 31911.2 km/arcsec.

The TNO has an absolute magnitude Hv=4.0
Diameter=955.0 km assuming a 5% albedo -- 38.2 sec chord
Diameter=389.9 km assuming a 30% albedo -- 15.6 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 120347, (2019/10/08 05:57UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:06.4 +45:21:06  1.3 40.54  65
Scheat         23:04:44.1 +28:11:25  2.4  7.64  55
71 Peg         23:34:27.6 +22:36:29  5.3  1.14  55
PPM 115584     23:33:28.4 +23:57:10  7.4  0.56  56
PPM 115560     23:32:12.3 +23:40:36  9.8  0.15  56
120347         23:31:45.0 +23:33:44 15.5        56
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 21.3 km RECON observability=1.0 and success probability=2.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 05:56:20 -40.3 Dark Up 63.1 166.9 Up 05:42:28 - 06:10:12 11433
Summerland 05:56:21 -40.4 Dark Up 63.3 166.2 Up 05:42:29 - 06:10:13 11420
Penticton 05:56:20 -40.5 Dark Up 63.4 166.4 Up 05:42:28 - 06:10:12 11411
Okanagan Falls 05:56:20 -40.7 Dark Up 63.6 166.3 Up 05:42:28 - 06:10:12 11396
Oliver 05:56:21 -40.8 Dark Up 63.8 166.3 Up 05:42:29 - 06:10:13 11382
Anarchist Mountain Observatory 05:56:21 -41.0 Dark Up 64.0 166.6 Up 05:42:29 - 06:10:13 11360
Oroville 05:56:22 -41.1 Dark Up 64.0 166.4 Up 05:42:30 - 06:10:14 11358
Tonasket 05:56:22 -41.3 Dark Up 64.2 166.3 Up 05:42:30 - 06:10:14 11338
Okanogan 05:56:24 -41.5 Dark Up 64.5 165.8 Up 05:42:32 - 06:10:16 11317
Brewster 05:56:24 -41.6 Dark Up 64.8 165.2 Up 05:42:32 - 06:10:16 11303
Manson/Chelan 05:56:26 -41.6 Dark Up 64.9 164.4 Up 05:42:34 - 06:10:18 11301
Wenatchee 05:56:27 -41.9 Dark Up 65.3 163.7 Up 05:42:35 - 06:10:19 11270
Ellensburg 05:56:29 -42.1 Dark Up 65.7 163.0 Up 05:42:37 - 06:10:21 11245
Yakima 05:56:31 -42.4 Dark Up 66.1 162.7 Up 05:42:39 - 06:10:23 11213
Toppenish/White Swan 05:56:32 -42.7 Dark Up 66.3 163.0 Up 05:42:40 - 06:10:24 11188
Goldendale 05:56:33 -42.9 Dark Up 66.8 161.6 Up 05:42:41 - 06:10:25 11160
The Dalles 05:56:33 -42.9 Dark Up 66.9 160.6 Up 05:42:41 - 06:10:25 11158
Pasco 05:56:28 -43.3 Dark Up 66.7 165.7 Up 05:42:36 - 06:10:20 11124
Maupin 05:56:37 -43.3 Dark Up 67.3 160.6 Up 05:42:45 - 06:10:29 11118
PNWRO 05:56:27 -43.6 Dark Up 67.0 166.1 Up 05:42:35 - 06:10:19 11093
Madras/Culver 05:56:35 -43.7 Dark Up 67.8 160.0 Up 05:42:43 - 06:10:27 11075
Sisters 05:56:39 -43.7 Dark Up 68.0 158.7 Up 05:42:47 - 06:10:31 11067
Redmond 05:56:37 -43.9 Dark Up 68.1 159.6 Up 05:42:45 - 06:10:29 11047
Bend 05:56:38 -44.0 Dark Up 68.3 159.1 Up 05:42:46 - 06:10:30 11036
Oregon Observatory 05:56:39 -44.1 Dark Up 68.4 158.6 Up 05:42:47 - 06:10:31 11027
La Pine/Gilchrist 05:56:39 -44.2 Dark Up 68.6 158.3 Up 05:42:47 - 06:10:31 11013
North Lake 05:56:39 -44.8 Dark Up 69.2 159.4 Up 05:42:47 - 06:10:31 10949
Chiloquin 05:56:43 -44.8 Dark Up 69.5 156.4 Up 05:42:51 - 06:10:35 10936
Klamath Falls 05:56:44 -45.1 Dark Up 69.9 156.2 Up 05:42:52 - 06:10:36 10903
Paisley 05:56:40 -45.4 Dark Up 69.8 159.8 Up 05:42:48 - 06:10:32 10886
Tulelake 05:56:44 -45.5 Dark Up 70.2 156.7 Up 05:42:52 - 06:10:36 10866
Lakeview 05:56:41 -45.9 Dark Up 70.3 159.8 Up 05:42:49 - 06:10:33 10834
Fall River/Burney 05:56:46 -46.2 Dark Up 71.1 155.9 Up 05:42:54 - 06:10:38 10785
Cedarville 05:56:41 -46.5 Dark Up 71.0 159.6 Up 05:42:49 - 06:10:33 10770
Susanville 05:56:45 -47.0 Dark Up 71.9 157.1 Up 05:42:53 - 06:10:37 10697
Greenville 05:56:47 -47.1 Dark Up 72.0 156.0 Up 05:42:55 - 06:10:39 10687
Gimple 05:56:46 -47.1 Dark Up 72.1 156.2 Up 05:42:54 - 06:10:38 10683
Quincy 05:56:48 -47.2 Dark Up 72.2 155.7 Up 05:42:56 - 06:10:40 10669
Portola 05:56:46 -47.6 Dark Up 72.5 156.9 Up 05:42:54 - 06:10:38 10636
Reno 05:56:47 -48.1 Dark Up 72.9 158.5 Up 05:42:55 - 06:10:39 10582
Carson City 05:56:47 -48.4 Dark Up 73.3 158.2 Up 05:42:55 - 06:10:39 10549
Gardnerville 05:56:46 -48.6 Dark Up 73.5 158.0 Up 05:42:54 - 06:10:38 10526
Yerington 05:56:45 -48.9 Dark Up 73.6 159.8 Up 05:42:53 - 06:10:37 10502
Hawthorne 05:56:45 -49.5 Dark Up 74.2 161.0 Up 05:42:53 - 06:10:37 10436
Lee Vining 05:56:47 -49.6 Dark Up 74.6 158.7 Up 05:42:55 - 06:10:39 10410
Tonopah 05:56:42 -50.6 Dark Up 75.0 165.2 Up 05:42:50 - 06:10:34 10328
Bishop 05:56:46 -50.5 Dark Up 75.4 160.4 Up 05:42:54 - 06:10:38 10322
CPSLO 05:56:58 -50.6 Dark Up 76.5 149.1 Up 05:43:06 - 06:10:50 10250
Lone Pine 05:56:48 -51.2 Dark Up 76.2 160.6 Up 05:42:56 - 06:10:40 10237
Beatty 05:56:42 -51.7 Dark Up 76.2 165.7 Up 05:42:50 - 06:10:34 10202
Indian Springs 05:56:41 -52.5 Dark Up 76.7 169.5 Up 05:42:49 - 06:10:33 10121
Henderson 05:56:40 -53.3 Dark Up 77.3 172.0 Up 05:42:48 - 06:10:32 10039
Wildwood 05:56:55 -52.7 Dark Up 78.3 154.3 Up 05:43:03 - 06:10:47 10038
SwRI 05:56:03 -53.8 Dark Up 72.2 203.6 Up 05:42:11 - 06:09:55 9990
Searchlight/Boulder City 05:56:40 -53.7 Dark Up 77.9 171.9 Up 05:42:48 - 06:10:32 9984
Laughlin/Bullhead City 05:56:40 -54.1 Dark Up 78.2 173.2 Up 05:42:48 - 06:10:32 9940
Patrick 05:56:37 -54.3 Dark Up 78.0 176.4 Up 05:42:45 - 06:10:29 9929
Kingman/Dolan Springs 05:56:39 -54.4 Dark Up 78.2 175.5 Up 05:42:47 - 06:10:31 9917
Mohave Valley 05:56:41 -54.3 Dark Up 78.5 173.1 Up 05:42:49 - 06:10:33 9914
Idyllwild 05:56:50 -54.0 Dark Up 79.2 162.0 Up 05:42:58 - 06:10:42 9911
Lake Havasu City 05:56:42 -54.8 Dark Up 78.9 174.0 Up 05:42:50 - 06:10:34 9865
Parker 05:56:41 -55.1 Dark Up 79.3 174.0 Up 05:42:49 - 06:10:33 9831
Blythe 05:56:44 -55.3 Dark Up 79.7 172.2 Up 05:42:52 - 06:10:36 9797
Calipatria 05:56:47 -55.1 Dark Up 80.1 166.9 Up 05:42:55 - 06:10:39 9797
Yuma 05:56:47 -56.0 Dark Up 80.7 171.3 Up 05:42:55 - 06:10:39 9713
George/Scottsdale 05:56:34 -56.7 Dark Up 79.7 186.1 Up 05:42:42 - 06:10:26 9676

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 120347, (2019/10/08 05:57UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 40.54  65
Scheat         23:03:46.7 +28:05:01  2.4  7.64  55
71 Peg         23:33:28.1 +22:29:55  5.3  1.14  55
PPM 115584     23:32:29.0 +23:50:36  7.4  0.56  56
PPM 115560     23:31:12.9 +23:34:03  9.8  0.15  56
120347         23:30:45.7 +23:27:11 15.5        56
Positions are for J2000

Event circumstances last updated at 2019/08/01 22:40:15 UT

Marc W. Buie, Southwest Research Institute

RECON