RECON: TNO occultation with 15875

Event between (15875) 96TP66 and star GA1160:01555123 with event index number of 244208

Geocentric closest approach at 2020/02/01 06:56:38 UTC

J2000 position of star is 05:45:24.3 +27:46:57
Equinox of date position of star is 05:46:33.9 +27:47:20
Stellar brightness G=15.0, use SENSEUP=128
Star is 54 degrees from the moon. Moon is 43% illuminated.
TNO apparent brightness V=21.8

[RECON map]
TNO is 29.6 AU from the Sun and 28.9 AU from the Earth.
The TNO is moving 15.8 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 384 seconds.
The 1-sigma cross-track error in the shadow position is 1090 km.
The sky-plane scale is 20950.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.0
Diameter=239.9 km assuming a 5% albedo -- 15.2 sec chord
Diameter=97.9 km assuming a 30% albedo -- 6.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 15875, (2020/02/01 06:57UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:04.5 +16:32:53  0.8 19.61  36
Alnath         05:27:33.8 +28:37:21  1.6  4.29  50
PPM 094619     05:40:35.0 +29:13:30  5.9  1.96  53
PPM 094771     05:45:37.0 +27:44:20  8.4  0.24  54
PPM 094826     05:47:13.7 +27:57:32  9.9  0.21  54
PPM 094812     05:46:57.3 +27:51:43 10.2  0.10  54
15875          05:46:40.2 +27:47:22 15.0        55
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 2.3 sigma about the mid-time.
The median site spacing is 25.9 km RECON observability=1.0 and success probability=1.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 06:54:12 -54.1 Dark Up 59.2 235.7 Up 06:39:12 - 07:09:12 -3290
Oroville 06:54:10 -54.7 Dark Up 59.4 236.7 Up 06:39:10 - 07:09:10 -3351
Tonasket 06:54:10 -54.8 Dark Up 59.6 237.1 Up 06:39:10 - 07:09:10 -3376
Okanogan 06:54:09 -55.1 Dark Up 59.8 237.3 Up 06:39:09 - 07:09:09 -3412
Brewster 06:54:11 -55.2 Dark Up 60.1 237.5 Up 06:39:11 - 07:09:11 -3441
Manson/Chelan 06:54:12 -55.3 Dark Up 60.4 237.3 Up 06:39:12 - 07:09:12 -3465
Entiat 06:54:12 -55.4 Dark Up 60.6 237.5 Up 06:39:12 - 07:09:12 -3489
Wenatchee 06:54:12 -55.6 Dark Up 60.8 237.8 Up 06:39:12 - 07:09:12 -3516
Ellensburg 06:54:12 -55.8 Dark Up 61.1 238.1 Up 06:39:12 - 07:09:12 -3561
Yakima 06:54:12 -56.1 Dark Up 61.3 238.7 Up 06:39:12 - 07:09:12 -3604
Toppenish/White Swan 06:54:11 -56.4 Dark Up 61.4 239.3 Up 06:39:11 - 07:09:11 -3626
Pasco 06:54:05 -57.0 Dark Up 60.7 241.1 Up 06:39:05 - 07:09:05 -3630
PNWRO 06:54:04 -57.3 Dark Up 60.6 241.8 Up 06:39:04 - 07:09:04 -3655
George/Umatilla 06:54:06 -57.2 Dark Up 61.0 241.4 Up 06:39:06 - 07:09:06 -3667
Goldendale 06:54:12 -56.7 Dark Up 61.9 239.6 Up 06:39:12 - 07:09:12 -3687
The Dalles 06:54:13 -56.7 Dark Up 62.2 239.4 Up 06:39:13 - 07:09:13 -3712
Maupin 06:54:12 -57.0 Dark Up 62.4 240.3 Up 06:39:12 - 07:09:12 -3756
Madras/Culver 06:54:12 -57.5 Dark Up 62.7 241.1 Up 06:39:12 - 07:09:12 -3815
Sisters 06:54:13 -57.5 Dark Up 63.1 241.1 Up 06:39:13 - 07:09:13 -3853
Redmond 06:54:12 -57.7 Dark Up 62.9 241.6 Up 06:39:12 - 07:09:12 -3853
Bend 06:54:12 -57.8 Dark Up 63.1 241.8 Up 06:39:12 - 07:09:12 -3877
Oregon Observatory 06:54:12 -57.9 Dark Up 63.2 242.0 Up 06:39:12 - 07:09:12 -3896
La Pine/Gilchrist 06:54:12 -58.0 Dark Up 63.4 242.2 Up 06:39:12 - 07:09:12 -3919
North Lake 06:54:09 -58.6 Dark Up 63.2 243.8 Up 06:39:09 - 07:09:09 -3962
Paisley 06:54:07 -59.2 Dark Up 63.2 245.2 Up 06:39:07 - 07:09:07 -4019
Chiloquin 06:54:12 -58.7 Dark Up 64.1 243.8 Up 06:39:12 - 07:09:12 -4040
Lakeview 06:54:05 -59.7 Dark Up 63.3 246.4 Up 06:39:05 - 07:09:05 -4072
Klamath Falls 06:54:12 -58.9 Dark Up 64.2 244.5 Up 06:39:12 - 07:09:12 -4076
Tulelake 06:54:11 -59.3 Dark Up 64.1 245.4 Up 06:39:11 - 07:09:11 -4104
Niwot 06:52:55 -66.7 Dark Up 52.9 264.0 Up 06:37:55 - 07:07:55 -4118
Cedarville 06:54:03 -60.2 Dark Up 63.4 247.8 Up 06:39:03 - 07:09:03 -4142
Fall River/Burney 06:54:09 -60.0 Dark Up 64.4 247.2 Up 06:39:09 - 07:09:09 -4202
Susanville 06:54:05 -60.8 Dark Up 64.1 249.3 Up 06:39:05 - 07:09:05 -4265
Gimple 06:54:06 -60.9 Dark Up 64.4 249.6 Up 06:39:06 - 07:09:06 -4297
Greenville 06:54:06 -60.9 Dark Up 64.4 249.5 Up 06:39:06 - 07:09:06 -4297
Quincy 06:54:06 -61.0 Dark Up 64.5 249.9 Up 06:39:06 - 07:09:06 -4319
Portola 06:54:03 -61.4 Dark Up 64.2 250.7 Up 06:39:03 - 07:09:03 -4330
Reno 06:54:00 -61.9 Dark Up 63.8 252.0 Up 06:39:00 - 07:09:00 -4354
Carson City 06:53:59 -62.2 Dark Up 63.9 252.7 Up 06:38:59 - 07:08:59 -4393
Yerington 06:53:57 -62.6 Dark Up 63.5 253.7 Up 06:38:57 - 07:08:57 -4410
Gardnerville 06:53:58 -62.4 Dark Up 64.0 253.2 Up 06:38:58 - 07:08:58 -4419
Hawthorne 06:53:53 -63.3 Dark Up 63.3 255.2 Up 06:38:53 - 07:08:53 -4456
Tonopah 06:53:46 -64.3 Dark Up 62.3 257.4 Up 06:38:46 - 07:08:46 -4495
Lee Vining 06:53:55 -63.4 Dark Up 63.8 255.8 Up 06:38:55 - 07:08:55 -4522
Bishop 06:53:51 -64.2 Dark Up 63.4 257.6 Up 06:38:51 - 07:08:51 -4581
Beatty 06:53:42 -65.4 Dark Up 62.2 260.0 Up 06:38:42 - 07:08:42 -4617
Indian Springs 06:53:37 -66.2 Dark Up 61.4 261.5 Up 06:38:37 - 07:08:37 -4642
Lone Pine 06:53:48 -65.0 Dark Up 63.3 259.4 Up 06:38:48 - 07:08:48 -4661
Henderson 06:53:33 -67.0 Dark Up 60.9 263.0 Up 06:38:33 - 07:08:33 -4693
Patrick 06:53:26 -68.0 Dark Up 60.1 264.9 Up 06:38:26 - 07:08:26 -4749
Searchlight/Boulder City 06:53:32 -67.5 Dark Up 61.0 264.0 Up 06:38:32 - 07:08:32 -4755
DCO 06:53:23 -68.6 Dark Up 59.6 265.9 Up 06:38:23 - 07:08:23 -4774
Kingman/Dolan Springs 06:53:27 -68.1 Dark Up 60.3 265.1 Up 06:38:27 - 07:08:27 -4775
Laughlin/Bullhead City 06:53:29 -67.9 Dark Up 60.7 264.8 Up 06:38:29 - 07:08:29 -4784
Mohave Valley 06:53:29 -68.1 Dark Up 60.7 265.3 Up 06:38:29 - 07:08:29 -4813
CPSLO 06:54:00 -64.3 Dark Up 65.5 259.8 Up 06:39:00 - 07:09:00 -4824
Lake Havasu City 06:53:27 -68.5 Dark Up 60.6 266.2 Up 06:38:27 - 07:08:27 -4854
Parker 06:53:27 -68.8 Dark Up 60.6 266.8 Up 06:38:27 - 07:08:27 -4892
Wildwood 06:53:49 -66.4 Dark Up 64.1 264.0 Up 06:38:49 - 07:08:49 -4941
Blythe 06:53:29 -69.0 Dark Up 60.8 267.6 Up 06:38:29 - 07:08:29 -4953
Idyllwild 06:53:39 -67.7 Dark Up 62.6 266.0 Up 06:38:39 - 07:08:39 -4963
Calipatria 06:53:32 -68.9 Dark Up 61.6 267.9 Up 06:38:32 - 07:08:32 -5018
Yuma 06:53:28 -69.7 Dark Up 60.9 269.2 Up 06:38:28 - 07:08:28 -5055

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, (2020/02/01 06:57UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 19.61  36
Alnath         05:26:17.5 +28:36:23  1.6  4.29  50
PPM 094619     05:39:18.3 +29:12:55  5.9  1.96  53
PPM 094771     05:44:21.1 +27:43:53  8.4  0.24  54
PPM 094826     05:45:57.7 +27:57:09  9.9  0.21  54
PPM 094812     05:45:41.4 +27:51:19 10.2  0.10  54
15875          05:45:24.3 +27:46:57 15.0        54
Positions are for J2000

Event circumstances last updated at 2018/06/05 18:23:47 UT

Marc W. Buie, Southwest Research Institute

RECON