RECON: TNO occultation with 444745

Event between (444745) 07JF43 and star GA0780:05178666 with event index number of 213402

Geocentric closest approach at 2019/09/10 04:19:54 UTC

J2000 position of star is 16:20:10.5 -11:41:30
Equinox of date position of star is 16:21:11.9 -11:44:05
Stellar brightness G=13.9, use SENSEUP=64
Star is 59 degrees from the moon. Moon is 86% illuminated.
TNO apparent brightness V=21.2

[RECON map]
TNO is 37.2 AU from the Sun and 37.3 AU from the Earth.
The TNO is moving 11.9 km/sec on the sky relative to the star, or, 1.6 arcsec/hr.
The 1-sigma error in the time of the event is 168 seconds.
The 1-sigma cross-track error in the shadow position is 1372 km.
The sky-plane scale is 27082.0 km/arcsec.

The TNO has an absolute magnitude Hv=5.3
Diameter=524.8 km assuming a 5% albedo -- 44.1 sec chord
Diameter=214.3 km assuming a 30% albedo -- 18.0 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 444745, (2019/09/10 04:20UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:37.1 -26:28:27  0.9 14.90  54
13Zet Oph      16:38:14.7 -10:36:20  2.6  4.32  55
15Psi Sco      16:13:04.7 -10:06:50  4.9  2.58  61
PPM 231649     16:25:17.6 -11:56:32  8.0  1.01  58
PPM 231552     16:21:32.9 -11:34:42  9.6  0.17  59
444745         16:21:16.1 -11:44:15 13.9        59
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 9.9 km RECON observability=0.5 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)
Penticton 04:21:03 -18.5 Dark Up 14.9 230.5 Really Low 04:06:33 - 04:35:34 -3779
Oroville 04:21:03 -18.8 Dark Up 15.3 230.7 Really Low 04:06:33 - 04:35:34 -3792
Tonasket 04:21:03 -19.0 Dark Up 15.4 230.8 Really Low 04:06:33 - 04:35:34 -3798
Okanogan 04:21:03 -19.1 Dark Up 15.7 230.7 Really Low 04:06:33 - 04:35:34 -3809
Brewster 04:21:03 -19.1 Dark Up 16.0 230.6 Really Low 04:06:33 - 04:35:34 -3819
Manson/Chelan 04:21:03 -19.0 Dark Up 16.3 230.3 Really Low 04:06:33 - 04:35:34 -3829
Entiat 04:21:03 -19.1 Dark Up 16.5 230.3 Really Low 04:06:33 - 04:35:34 -3836
Wenatchee 04:21:03 -19.1 Dark Up 16.7 230.3 Really Low 04:06:33 - 04:35:34 -3845
Ellensburg 04:21:03 -19.2 Dark Up 17.1 230.2 Really Low 04:06:33 - 04:35:34 -3860
Pasco 04:21:03 -20.4 Dark Up 16.8 231.6 Really Low 04:06:33 - 04:35:34 -3871
Yakima 04:21:03 -19.4 Dark Up 17.3 230.3 Really Low 04:06:33 - 04:35:34 -3873
PNWRO 04:21:03 -20.7 Dark Up 16.8 231.9 Really Low 04:06:33 - 04:35:34 -3878
Toppenish/White Swan 04:21:03 -19.6 Dark Up 17.4 230.5 Really Low 04:06:33 - 04:35:34 -3879
George/Umatilla 04:21:03 -20.5 Dark Up 17.1 231.5 Really Low 04:06:33 - 04:35:34 -3885
Goldendale 04:21:03 -19.7 Dark Up 18.0 230.3 Really Low 04:06:33 - 04:35:34 -3902
The Dalles 04:21:03 -19.5 Dark Up 18.3 230.0 Really Low 04:06:33 - 04:35:34 -3914
Niwot 04:23:15 -32.6 Dark Up 11.0 244.3 Really Low 04:08:45 - 04:37:46 -3925
Maupin 04:21:03 -19.8 Dark Up 18.5 230.2 Really Low 04:06:33 - 04:35:34 -3928
Madras/Culver 04:21:03 -20.1 Dark Up 18.9 230.3 Really Low 04:06:33 - 04:35:34 -3950
Redmond 04:21:03 -20.2 Dark Up 19.1 230.4 Really Low 04:06:33 - 04:35:34 -3965
Sisters 04:21:03 -19.9 Dark Up 19.4 230.0 Really Low 04:06:33 - 04:35:34 -3968
North Lake 04:21:50 -21.0 Dark Up 19.5 231.0 Really Low 04:07:19 - 04:36:20 -3969
Bend 04:21:03 -20.2 Dark Up 19.4 230.3 Really Low 04:06:33 - 04:35:34 -3975
Paisley 04:21:55 -21.5 Dark Up 19.7 231.5 Really Low 04:07:25 - 04:36:26 -3982
Oregon Observatory 04:21:03 -20.2 Dark Up 19.5 230.2 Really Low 04:06:33 - 04:35:34 -3983
La Pine/Gilchrist 04:21:03 -20.3 Dark Up 19.7 230.2 Really Low 04:06:33 - 04:35:34 -3992
Lakeview 04:22:00 -21.9 Dark Up 19.9 231.8 Really Low 04:07:29 - 04:36:30 -3997
Chiloquin 04:21:49 -20.7 Dark Up 20.5 230.4 Low 04:07:19 - 04:36:20 -4007
Klamath Falls 04:21:53 -20.9 Dark Up 20.7 230.6 Low 04:07:22 - 04:36:23 -4017
Cedarville 04:22:05 -22.4 Dark Up 20.1 232.2 Low 04:07:35 - 04:36:36 -4018
Tulelake 04:21:56 -21.3 Dark Up 20.7 230.9 Low 04:07:25 - 04:36:26 -4022
Fall River/Burney 04:22:02 -21.8 Dark Up 21.2 231.3 Low 04:07:31 - 04:36:32 -4054
Susanville 04:22:14 -22.6 Dark Up 21.1 232.1 Low 04:07:43 - 04:36:44 -4066
Gimple 04:22:12 -22.6 Dark Up 21.4 232.0 Low 04:07:41 - 04:36:42 -4080
Greenville 04:22:12 -22.5 Dark Up 21.4 232.0 Low 04:07:41 - 04:36:42 -4082
Portola 04:22:15 -23.0 Dark Up 21.3 232.5 Low 04:07:45 - 04:36:46 -4087
Reno 04:22:23 -23.6 Dark Up 21.1 233.1 Low 04:07:52 - 04:36:53 -4087
Quincy 04:22:13 -22.6 Dark Up 21.6 232.0 Low 04:07:42 - 04:36:43 -4089
Yerington 04:22:28 -24.3 Dark Up 21.0 233.8 Low 04:07:58 - 04:36:59 -4099
Carson City 04:22:24 -23.8 Dark Up 21.3 233.3 Low 04:07:54 - 04:36:55 -4101
Tonopah 04:22:43 -26.2 Dark Up 20.2 235.7 Low 04:08:13 - 04:37:14 -4110
Gardnerville 04:22:26 -24.0 Dark Up 21.4 233.4 Low 04:07:56 - 04:36:57 -4111
Hawthorne 04:22:33 -24.9 Dark Up 20.9 234.4 Low 04:08:03 - 04:37:04 -4111
Lee Vining 04:22:38 -24.9 Dark Up 21.5 234.2 Low 04:08:08 - 04:37:09 -4141
Beatty 04:22:54 -27.1 Dark Up 20.6 236.5 Low 04:08:23 - 04:37:24 -4153
Indian Springs 04:23:01 -28.0 Dark Up 20.0 237.4 Really Low 04:08:30 - 04:37:31 -4154
Bishop 04:22:44 -25.7 Dark Up 21.4 235.0 Low 04:08:13 - 04:37:14 -4156
Henderson 04:23:08 -28.8 Dark Up 19.8 238.1 Really Low 04:08:38 - 04:37:39 -4169
Patrick 04:23:17 -29.9 Dark Up 19.3 239.2 Really Low 04:08:47 - 04:37:48 -4185
Lone Pine 04:22:50 -26.3 Dark Up 21.6 235.5 Low 04:08:20 - 04:37:21 -4185
DCO 04:23:24 -30.6 Dark Up 18.9 239.8 Really Low 04:08:53 - 04:37:54 -4191
Searchlight/Boulder City 04:23:13 -29.2 Dark Up 20.0 238.4 Low 04:08:43 - 04:37:44 -4195
Kingman/Dolan Springs 04:23:20 -29.9 Dark Up 19.6 239.1 Really Low 04:08:50 - 04:37:51 -4197
Laughlin/Bullhead City 04:23:16 -29.6 Dark Up 19.9 238.7 Really Low 04:08:45 - 04:37:46 -4204
Mohave Valley 04:23:20 -29.7 Dark Up 20.1 238.8 Low 04:08:50 - 04:37:51 -4217
Lake Havasu City 04:23:23 -30.1 Dark Up 20.1 239.1 Low 04:08:52 - 04:37:53 -4233
Parker 04:23:25 -30.3 Dark Up 20.2 239.3 Low 04:08:54 - 04:37:55 -4249
Blythe 04:23:27 -30.4 Dark Up 20.7 239.2 Low 04:08:57 - 04:37:58 -4278
CPSLO 04:22:47 -25.1 Dark Up 24.1 233.9 Low 04:08:16 - 04:37:17 -4285
Idyllwild 04:23:18 -28.8 Dark Up 22.2 237.6 Low 04:08:47 - 04:37:48 -4300
Wildwood 04:23:06 -27.2 Dark Up 23.3 236.0 Low 04:08:36 - 04:37:37 -4310
Calipatria 04:23:27 -30.0 Dark Up 21.6 238.7 Low 04:08:57 - 04:37:58 -4314
Yuma 04:23:34 -30.9 Dark Up 21.2 239.5 Low 04:09:03 - 04:38:04 -4325

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 444745, (2019/09/10 04:20UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 14.90  54
13Zet Oph      16:37:09.6 -10:34:01  2.6  4.32  55
15Psi Sco      16:12:00.0 -10:03:51  4.9  2.58  61
PPM 231649     16:24:12.0 -11:53:53  8.0  1.01  58
PPM 231552     16:20:27.5 -11:31:57  9.6  0.17  59
444745         16:20:10.5 -11:41:30 13.9        59
Positions are for J2000

Event circumstances last updated at 2018/06/12 07:43:23 UT

Marc W. Buie, Southwest Research Institute

RECON