RECON: TNO occultation with 15TG387

Event between 15TG387 and star GA1020:00020858 with event index number of 361867

Geocentric closest approach at 2018/10/20 05:22:31 UTC

J2000 position of star is 00:12:17.9 +13:15:07
Equinox of date position of star is 00:13:16.1 +13:21:24
Stellar brightness G=14.5, use SENSEUP=128
Star is 36 degrees from the moon. Moon is 81% illuminated.
TNO apparent brightness V=24.3

[RECON map]
TNO is 78.7 AU from the Sun and 77.7 AU from the Earth.
The TNO is moving 24.0 km/sec on the sky relative to the star, or, 1.5 arcsec/hr.
The 1-sigma error in the time of the event is 360 seconds.
The 1-sigma cross-track error in the shadow position is 7977 km.
The sky-plane scale is 56372.0 km/arcsec.

The TNO has an absolute magnitude Hv=5.3
Diameter=512.9 km assuming a 5% albedo -- 21.3 sec chord
Diameter=209.4 km assuming a 30% albedo -- 8.7 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 15TG387, (2018/10/20 05:23UT)
Object            RA         Dec     mag  sep  mel
Algenib        00:14:12.4 +15:17:17  2.8  1.94  38
86 Peg         00:06:40.0 +13:30:03  6.4  1.61  35
PPM 116236     00:13:58.3 +12:26:08  8.1  0.94  36
PPM 116204     00:11:39.0 +13:19:38  8.7  0.39  36
PPM 116229     00:13:32.7 +13:23:32 10.5  0.08  36
15TG387        00:13:16.0 +13:21:24 14.5        36
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 2.5 sigma about the mid-time.
The median site spacing is 16.7 km RECON observability=1.0 and success probability=5.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 05:21:55 -40.8 Dark Up 51.7 158.1 Up 05:06:55 - 05:36:55 687
Kelowna 05:21:54 -41.0 Dark Up 51.8 158.7 Up 05:06:54 - 05:36:54 677
Penticton 05:21:56 -41.1 Dark Up 52.1 158.3 Up 05:06:56 - 05:36:56 657
Okanagan Falls 05:21:56 -41.2 Dark Up 52.2 158.2 Up 05:06:56 - 05:36:56 645
Oliver 05:21:57 -41.3 Dark Up 52.4 158.1 Up 05:06:57 - 05:36:57 633
Anarchist Mountain Observatory 05:21:56 -41.6 Dark Up 52.6 158.3 Up 05:06:56 - 05:36:56 614
Oroville 05:21:57 -41.6 Dark Up 52.6 158.2 Up 05:06:57 - 05:36:57 611
Tonasket 05:21:57 -41.7 Dark Up 52.9 158.1 Up 05:06:57 - 05:36:57 594
Okanogan 05:21:58 -41.9 Dark Up 53.1 157.7 Up 05:06:58 - 05:36:58 576
Brewster 05:22:00 -41.9 Dark Up 53.3 157.2 Up 05:07:00 - 05:37:00 564
Manson/Chelan 05:22:01 -41.9 Dark Up 53.4 156.5 Up 05:07:01 - 05:37:01 562
Entiat 05:22:02 -42.0 Dark Up 53.6 156.3 Up 05:07:02 - 05:37:02 549
Wenatchee 05:22:03 -42.1 Dark Up 53.8 156.0 Up 05:07:03 - 05:37:03 535
Ellensburg 05:22:04 -42.2 Dark Up 54.1 155.5 Up 05:07:04 - 05:37:04 513
Yakima 05:22:05 -42.5 Dark Up 54.5 155.2 Up 05:07:05 - 05:37:05 484
Toppenish/White Swan 05:22:05 -42.7 Dark Up 54.8 155.3 Up 05:07:05 - 05:37:05 462
Goldendale 05:22:08 -42.8 Dark Up 55.1 154.3 Up 05:07:08 - 05:37:08 437
The Dalles 05:22:09 -42.7 Dark Up 55.2 153.6 Up 05:07:09 - 05:37:09 435
Pasco 05:22:02 -43.5 Dark Up 55.2 157.3 Up 05:07:02 - 05:37:02 405
Maupin 05:22:10 -43.1 Dark Up 55.6 153.5 Up 05:07:10 - 05:37:10 400
George/Umatilla 05:22:04 -43.6 Dark Up 55.5 156.8 Up 05:07:04 - 05:37:04 388
PNWRO 05:22:02 -43.7 Dark Up 55.5 157.6 Up 05:07:02 - 05:37:02 377
Madras/Culver 05:22:12 -43.4 Dark Up 56.1 153.1 Up 05:07:12 - 05:37:12 361
Sisters 05:22:14 -43.3 Dark Up 56.3 152.1 Up 05:07:14 - 05:37:14 354
Redmond 05:22:13 -43.5 Dark Up 56.4 152.8 Up 05:07:13 - 05:37:13 336
Bend 05:22:14 -43.6 Dark Up 56.6 152.4 Up 05:07:14 - 05:37:14 326
Oregon Observatory 05:22:15 -43.6 Dark Up 56.7 152.1 Up 05:07:15 - 05:37:15 318
La Pine/Gilchrist 05:22:15 -43.7 Dark Up 56.8 151.8 Up 05:07:15 - 05:37:15 305
North Lake 05:22:15 -44.3 Dark Up 57.4 152.5 Up 05:07:15 - 05:37:15 248
Chiloquin 05:22:19 -44.1 Dark Up 57.7 150.4 Up 05:07:19 - 05:37:19 235
Klamath Falls 05:22:19 -44.4 Dark Up 58.0 150.3 Up 05:07:19 - 05:37:19 206
Paisley 05:22:15 -44.8 Dark Up 58.0 152.7 Up 05:07:15 - 05:37:15 191
Tulelake 05:22:19 -44.7 Dark Up 58.4 150.6 Up 05:07:19 - 05:37:19 172
Lakeview 05:22:16 -45.2 Dark Up 58.5 152.7 Up 05:07:16 - 05:37:16 144
Fall River/Burney 05:22:22 -45.2 Dark Up 59.2 150.0 Up 05:07:22 - 05:37:22 98
Cedarville 05:22:17 -45.7 Dark Up 59.2 152.5 Up 05:07:17 - 05:37:17 86
Susanville 05:22:21 -46.1 Dark Up 60.0 150.8 Up 05:07:21 - 05:37:21 19
Greenville 05:22:23 -46.0 Dark Up 60.1 150.0 Up 05:07:23 - 05:37:23 8
Gimple 05:22:23 -46.1 Dark Up 60.2 150.2 Up 05:07:23 - 05:37:23 7
Quincy 05:22:23 -46.1 Dark Up 60.3 149.9 Up 05:07:23 - 05:37:23 -8
Portola 05:22:22 -46.5 Dark Up 60.6 150.6 Up 05:07:22 - 05:37:22 -38
Reno 05:22:21 -47.1 Dark Up 61.1 151.6 Up 05:07:21 - 05:37:21 -87
Carson City 05:22:22 -47.3 Dark Up 61.4 151.3 Up 05:07:22 - 05:37:22 -117
Gardnerville 05:22:22 -47.4 Dark Up 61.6 151.2 Up 05:07:22 - 05:37:22 -139
Yerington 05:22:20 -47.8 Dark Up 61.8 152.3 Up 05:07:20 - 05:37:20 -160
Hawthorne 05:22:20 -48.4 Dark Up 62.4 153.0 Up 05:07:20 - 05:37:20 -220
Lee Vining 05:22:23 -48.4 Dark Up 62.7 151.5 Up 05:07:23 - 05:37:23 -246
Tonopah 05:22:16 -49.6 Dark Up 63.3 155.4 Up 05:07:16 - 05:37:16 -319
Bishop 05:22:22 -49.2 Dark Up 63.5 152.4 Up 05:07:22 - 05:37:22 -327
CPSLO 05:22:34 -48.7 Dark Up 64.4 145.8 Up 05:07:34 - 05:37:34 -399
Lone Pine 05:22:23 -49.8 Dark Up 64.3 152.4 Up 05:07:23 - 05:37:23 -405
Beatty 05:22:18 -50.5 Dark Up 64.5 155.3 Up 05:07:18 - 05:37:18 -436
Indian Springs 05:22:15 -51.4 Dark Up 65.2 157.4 Up 05:07:15 - 05:37:15 -511
Henderson 05:22:14 -52.2 Dark Up 65.9 158.5 Up 05:07:14 - 05:37:14 -587
Wildwood 05:22:30 -50.8 Dark Up 66.3 148.6 Up 05:07:30 - 05:37:30 -594
Niwot 05:21:35 -54.9 Dark Up 63.1 181.7 Up 05:06:35 - 05:36:35 -636
Searchlight/Boulder City 05:22:15 -52.6 Dark Up 66.4 158.1 Up 05:07:15 - 05:37:15 -639
Laughlin/Bullhead City 05:22:15 -53.0 Dark Up 66.8 158.7 Up 05:07:15 - 05:37:15 -680
Patrick 05:22:12 -53.3 Dark Up 66.8 160.5 Up 05:07:12 - 05:37:12 -690
Kingman/Dolan Springs 05:22:13 -53.3 Dark Up 66.9 159.9 Up 05:07:13 - 05:37:13 -701
Mohave Valley 05:22:16 -53.1 Dark Up 67.0 158.5 Up 05:07:16 - 05:37:16 -704
Idyllwild 05:22:25 -52.3 Dark Up 67.4 152.4 Up 05:07:25 - 05:37:25 -710
DCO 05:22:11 -53.9 Dark Up 67.2 162.0 Up 05:07:11 - 05:37:11 -748
Lake Havasu City 05:22:16 -53.5 Dark Up 67.5 158.7 Up 05:07:16 - 05:37:16 -751
Parker 05:22:16 -53.7 Dark Up 67.8 158.5 Up 05:07:16 - 05:37:16 -783
Blythe 05:22:19 -53.8 Dark Up 68.2 157.3 Up 05:07:19 - 05:37:19 -816
Calipatria 05:22:23 -53.4 Dark Up 68.4 154.5 Up 05:07:23 - 05:37:23 -817
Yuma 05:22:21 -54.3 Dark Up 69.1 156.3 Up 05:07:21 - 05:37:21 -896

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 15TG387, (2018/10/20 05:23UT)
Object            RA         Dec     mag  sep  mel
Algenib        00:13:14.2 +15:11:01  2.8  1.94  38
86 Peg         00:05:42.0 +13:23:47  6.4  1.61  35
PPM 116236     00:13:00.1 +12:19:51  8.1  0.94  36
PPM 116204     00:10:40.9 +13:13:22  8.7  0.39  36
PPM 116229     00:12:34.6 +13:17:16 10.5  0.08  36
15TG387        00:12:17.9 +13:15:07 14.5        36
Positions are for J2000

Event circumstances last updated at 2018/10/30 17:50:04 UT

Marc W. Buie, Southwest Research Institute

RECON