RECON: TNO occultation with 15875

Event between (15875) 96TP66 and star GA1160:01382919 with event index number of 184110

Geocentric closest approach at 2019/03/26 04:03:42 UTC

J2000 position of star is 05:33:24.0 +27:41:31
Equinox of date position of star is 05:34:35.0 +27:42:14
Stellar brightness G=15.7, use SENSEUP=128
Star is 166 degrees from the moon. Moon is 70% illuminated.
TNO apparent brightness V=21.9

[RECON map]
TNO is 29.3 AU from the Sun and 29.5 AU from the Earth.
The TNO is moving 11.5 km/sec on the sky relative to the star, or, 1.9 arcsec/hr.
The 1-sigma error in the time of the event is 698 seconds.
The 1-sigma cross-track error in the shadow position is 1635 km.
The sky-plane scale is 21407.5 km/arcsec.

The TNO has an absolute magnitude Hv=7.0
Diameter=239.9 km assuming a 5% albedo -- 20.9 sec chord
Diameter=97.9 km assuming a 30% albedo -- 8.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 15875, (2019/03/26 04:04UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:01.6 +16:32:47  0.8 17.36 177
Alnath         05:27:30.6 +28:37:19  1.6  1.81 166
PPM 094572     05:38:21.0 +26:56:05  5.6  1.13 165
PPM 094499     05:35:33.8 +27:20:31  8.4  0.42 166
PPM 094503     05:35:49.1 +27:36:15  9.9  0.29 165
PPM 094478     05:34:34.3 +27:55:02 10.8  0.21 166
15875          05:34:36.6 +27:42:15 15.7       165
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 1.3 sigma about the mid-time.
The median site spacing is 15.7 km RECON observability=1.0 and success probability=15.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 04:06:49 -17.6 AT Down 51.0 251.3 Up 03:51:49 - 04:21:49 2732
Summerland 04:06:48 -17.4 AT Down 51.3 251.0 Up 03:51:48 - 04:21:48 2716
Penticton 04:06:52 -17.7 AT Down 51.2 251.6 Up 03:51:52 - 04:21:52 2697
Okanagan Falls 04:06:53 -17.7 AT Down 51.3 251.8 Up 03:51:53 - 04:21:53 2681
Oliver 04:06:53 -17.8 AT Down 51.3 252.0 Up 03:51:53 - 04:21:53 2669
Anarchist Mountain Observatory 04:06:55 -18.0 Dark Down 51.3 252.4 Up 03:51:55 - 04:21:55 2661
Oroville 04:06:55 -18.0 Dark Down 51.3 252.4 Up 03:51:55 - 04:21:55 2653
Tonasket 04:06:57 -18.1 Dark Down 51.4 252.7 Up 03:51:57 - 04:21:57 2634
Okanogan 04:06:58 -18.2 Dark Down 51.6 253.0 Up 03:51:58 - 04:21:58 2602
Brewster 04:06:59 -18.2 Dark Down 51.8 253.1 Up 03:51:59 - 04:21:59 2573
Manson/Chelan 04:06:59 -18.0 Dark Down 52.1 253.0 Up 03:51:59 - 04:21:59 2543
Entiat 04:07:01 -18.1 Dark Down 52.2 253.2 Up 03:52:01 - 04:22:01 2523
Wenatchee 04:07:01 -18.1 Dark Down 52.3 253.4 Up 03:52:01 - 04:22:01 2498
Niwot 04:08:52 -31.5 Dark Down 41.9 273.5 Up 03:53:52 - 04:23:52 2483
Ellensburg 04:07:03 -18.2 Dark Down 52.6 253.7 Up 03:52:03 - 04:22:03 2456
Pasco 04:07:14 -19.4 Dark Down 51.8 256.1 Up 03:52:14 - 04:22:14 2444
PNWRO 04:07:17 -19.7 Dark Down 51.7 256.6 Up 03:52:17 - 04:22:17 2431
Yakima 04:07:06 -18.3 Dark Down 52.7 254.2 Up 03:52:06 - 04:22:06 2422
Toppenish/White Swan 04:07:07 -18.5 Dark Down 52.6 254.7 Up 03:52:07 - 04:22:07 2410
George/Umatilla 04:07:16 -19.4 Dark Down 52.0 256.3 Up 03:52:16 - 04:22:16 2408
Goldendale 04:07:09 -18.5 Dark Down 53.1 255.0 Up 03:52:09 - 04:22:09 2348
The Dalles 04:07:09 -18.3 Dark Down 53.4 254.9 Up 03:52:09 - 04:22:09 2317
Maupin 04:07:11 -18.6 Dark Down 53.4 255.6 Up 03:52:11 - 04:22:11 2285
Madras/Culver 04:07:15 -18.8 Dark Down 53.6 256.3 Up 03:52:15 - 04:22:15 2236
Redmond 04:07:17 -18.9 Dark Down 53.7 256.7 Up 03:52:17 - 04:22:17 2204
Sisters 04:07:15 -18.6 Dark Down 54.0 256.3 Up 03:52:15 - 04:22:15 2192
Bend 04:07:18 -18.9 Dark Down 53.8 256.8 Up 03:52:18 - 04:22:18 2180
Oregon Observatory 04:07:17 -18.9 Dark Down 54.0 257.0 Up 03:52:17 - 04:22:17 2161
La Pine/Gilchrist 04:07:18 -18.9 Dark Down 54.0 257.2 Up 03:52:18 - 04:22:18 2141
North Lake 04:07:24 -19.5 Dark Down 53.7 258.3 Up 03:52:24 - 04:22:24 2125
Paisley 04:07:29 -20.0 Dark Down 53.5 259.4 Up 03:52:29 - 04:22:29 2090
Lakeview 04:07:34 -20.3 Dark Down 53.5 260.2 Up 03:52:34 - 04:22:34 2053
Chiloquin 04:07:24 -19.1 Dark Down 54.5 258.4 Up 03:52:24 - 04:22:24 2031
Klamath Falls 04:07:27 -19.3 Dark Down 54.5 258.9 Up 03:52:27 - 04:22:27 2003
Cedarville 04:07:39 -20.7 Dark Down 53.4 261.3 Up 03:52:39 - 04:22:39 2002
Tulelake 04:07:29 -19.6 Dark Down 54.3 259.6 Up 03:52:29 - 04:22:29 1991
Fall River/Burney 04:07:35 -20.0 Dark Down 54.4 260.9 Up 03:52:35 - 04:22:35 1913
Susanville 04:07:42 -20.8 Dark Down 53.9 262.4 Up 03:52:42 - 04:22:42 1886
Gimple 04:07:43 -20.7 Dark Down 54.1 262.6 Up 03:52:43 - 04:22:43 1853
Greenville 04:07:43 -20.7 Dark Down 54.2 262.6 Up 03:52:43 - 04:22:43 1850
Reno 04:07:52 -21.7 Dark Down 53.4 264.3 Up 03:52:52 - 04:22:52 1840
Portola 04:07:47 -21.2 Dark Down 53.8 263.4 Up 03:52:47 - 04:22:47 1839
Quincy 04:07:44 -20.8 Dark Down 54.2 262.8 Up 03:52:44 - 04:22:44 1832
Yerington 04:07:58 -22.4 Dark Down 52.9 265.5 Up 03:52:58 - 04:22:58 1817
Tonopah 04:08:14 -24.2 Dark Down 51.4 268.0 Up 03:53:14 - 04:23:14 1812
Carson City 04:07:54 -21.9 Dark Down 53.4 264.8 Up 03:52:54 - 04:22:54 1809
Hawthorne 04:08:04 -23.0 Dark Down 52.5 266.5 Up 03:53:04 - 04:23:04 1797
Gardnerville 04:07:56 -22.0 Dark Down 53.3 265.1 Up 03:52:56 - 04:22:56 1789
Indian Springs 04:08:30 -26.0 Dark Down 50.1 270.8 Up 03:53:30 - 04:23:30 1744
Beatty 04:08:23 -25.1 Dark Down 51.0 269.8 Up 03:53:23 - 04:23:23 1728
Lee Vining 04:08:05 -22.9 Dark Down 52.9 266.9 Up 03:53:05 - 04:23:05 1727
Henderson 04:08:37 -26.8 Dark Down 49.5 271.9 Up 03:53:37 - 04:23:37 1726
DCO 04:08:51 -28.6 Dark Down 47.9 274.0 Up 03:53:51 - 04:23:51 1721
Patrick 04:08:45 -27.9 Dark Down 48.5 273.2 Up 03:53:45 - 04:23:45 1718
Bishop 04:08:12 -23.7 Dark Down 52.3 268.2 Up 03:53:12 - 04:23:12 1702
Kingman/Dolan Springs 04:08:46 -27.8 Dark Down 48.7 273.4 Up 03:53:46 - 04:23:46 1690
Searchlight/Boulder City 04:08:40 -27.1 Dark Down 49.4 272.6 Up 03:53:40 - 04:23:40 1677
Laughlin/Bullhead City 04:08:44 -27.5 Dark Down 49.1 273.1 Up 03:53:44 - 04:23:44 1666
Lone Pine 04:08:18 -24.2 Dark Down 52.0 269.4 Up 03:53:18 - 04:23:18 1648
Mohave Valley 04:08:46 -27.6 Dark Down 49.1 273.5 Up 03:53:46 - 04:23:46 1642
Lake Havasu City 04:08:49 -27.9 Dark Down 48.8 274.1 Up 03:53:49 - 04:23:49 1617
Parker 04:08:51 -28.1 Dark Down 48.8 274.5 Up 03:53:51 - 04:23:51 1586
Blythe 04:08:52 -28.1 Dark Down 49.0 274.9 Up 03:53:52 - 04:23:52 1526
Idyllwild 04:08:41 -26.4 Dark Down 50.8 273.8 Up 03:53:41 - 04:23:41 1445
Yuma 04:08:58 -28.5 Dark Down 48.9 276.0 Up 03:53:58 - 04:23:58 1441
Calipatria 04:08:51 -27.6 Dark Down 49.7 275.1 Up 03:53:51 - 04:23:51 1441
CPSLO 04:08:11 -22.7 Dark Down 54.2 269.5 Up 03:53:11 - 04:23:11 1423
Wildwood 04:08:30 -24.8 Dark Down 52.4 272.3 Up 03:53:30 - 04:23:30 1397

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 15875, (2019/03/26 04:04UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 17.36 177
Alnath         05:26:17.5 +28:36:23  1.6  1.81 166
PPM 094572     05:37:08.9 +26:55:28  5.6  1.13 165
PPM 094499     05:34:21.5 +27:19:49  8.4  0.42 166
PPM 094503     05:34:36.6 +27:35:34  9.9  0.29 165
PPM 094478     05:33:21.7 +27:54:18 10.8  0.21 166
15875          05:33:24.0 +27:41:31 15.7       166
Positions are for J2000

Event circumstances last updated at 2018/10/23 21:04:19 UT

Marc W. Buie, Southwest Research Institute

RECON