RECON: TNO occultation with 15875

Event between (15875) 96TP66 and star GA1160:01598803 with event index number of 232708

Geocentric closest approach at 2020/01/02 02:57:48 UTC

J2000 position of star is 05:48:34.5 +27:51:02
Equinox of date position of star is 05:49:44.2 +27:51:20
Stellar brightness G=16.6, use SENSEUP=128
Star is 88 degrees from the moon. Moon is 40% illuminated.
TNO apparent brightness V=21.7

[RECON map]
TNO is 29.6 AU from the Sun and 28.6 AU from the Earth.
The TNO is moving 23.5 km/sec on the sky relative to the star, or, 4.1 arcsec/hr.
The 1-sigma error in the time of the event is 255 seconds.
The 1-sigma cross-track error in the shadow position is 1061 km.
The sky-plane scale is 20751.9 km/arcsec.

The TNO has an absolute magnitude Hv=7.0
Diameter=239.9 km assuming a 5% albedo -- 10.2 sec chord
Diameter=97.9 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 15875, (2020/01/02 02:58UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:04.2 +16:32:53  0.8 20.24  70
Alnath         05:27:33.5 +28:37:21  1.6  4.97  84
PPM 095117     05:57:50.1 +28:56:37  6.5  2.07  90
PPM 094914     05:50:04.3 +27:22:08  7.9  0.49  88
PPM 094879     05:49:00.7 +27:38:30  8.8  0.28  88
15875          05:49:50.1 +27:51:21 16.6        89
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 3.5 sigma about the mid-time.
The median site spacing is 21.0 km RECON observability=1.0 and success probability=41.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 03:00:13 -26.6 Dark Up 39.7 92.2 Up 02:45:13 - 03:15:13 935
Oroville 03:00:15 -26.6 Dark Up 39.8 91.8 Up 02:45:15 - 03:15:15 884
Tonasket 03:00:16 -26.6 Dark Up 39.8 91.6 Up 02:45:16 - 03:15:16 865
Okanogan 03:00:17 -26.5 Dark Up 39.7 91.2 Up 02:45:17 - 03:15:17 843
Brewster 03:00:18 -26.3 Dark Up 39.6 90.8 Up 02:45:18 - 03:15:18 827
Manson/Chelan 03:00:20 -26.0 Dark Up 39.4 90.4 Up 02:45:20 - 03:15:20 822
Entiat 03:00:20 -26.0 Dark Up 39.3 90.1 Up 02:45:20 - 03:15:20 807
Wenatchee 03:00:21 -25.9 Dark Up 39.2 89.8 Up 02:45:21 - 03:15:21 790
Ellensburg 03:00:23 -25.7 Dark Up 39.1 89.4 Up 02:45:23 - 03:15:23 763
Yakima 03:00:24 -25.6 Dark Up 39.1 89.0 Up 02:45:24 - 03:15:24 731
Toppenish/White Swan 03:00:25 -25.7 Dark Up 39.2 89.0 Up 02:45:25 - 03:15:25 707
Goldendale 03:00:27 -25.4 Dark Up 38.9 88.2 Up 02:45:27 - 03:15:27 676
The Dalles 03:00:28 -25.1 Dark Up 38.6 87.8 Up 02:45:28 - 03:15:28 670
Pasco 03:00:23 -26.6 Dark Up 40.1 89.8 Up 02:45:23 - 03:15:23 655
George/Umatilla 03:00:24 -26.4 Dark Up 39.9 89.3 Up 02:45:24 - 03:15:24 635
Maupin 03:00:30 -25.1 Dark Up 38.7 87.5 Up 02:45:30 - 03:15:30 632
PNWRO 03:00:24 -26.7 Dark Up 40.2 89.7 Up 02:45:24 - 03:15:24 627
Madras/Culver 03:00:31 -25.0 Dark Up 38.6 87.1 Up 02:45:31 - 03:15:31 588
Sisters 03:00:33 -24.6 Dark Up 38.3 86.5 Up 02:45:33 - 03:15:33 576
Redmond 03:00:32 -24.9 Dark Up 38.6 86.8 Up 02:45:32 - 03:15:32 560
Bend 03:00:33 -24.8 Dark Up 38.5 86.5 Up 02:45:33 - 03:15:33 547
Oregon Observatory 03:00:34 -24.7 Dark Up 38.4 86.3 Up 02:45:34 - 03:15:34 537
La Pine/Gilchrist 03:00:35 -24.6 Dark Up 38.3 86.1 Up 02:45:35 - 03:15:35 522
North Lake 03:00:35 -25.0 Dark Up 38.7 86.1 Up 02:45:35 - 03:15:35 464
Chiloquin 03:00:39 -24.2 Dark Up 38.0 85.0 Up 02:45:39 - 03:15:39 441
Klamath Falls 03:00:40 -24.2 Dark Up 38.0 84.8 Up 02:45:40 - 03:15:40 409
Paisley 03:00:36 -25.1 Dark Up 39.0 85.9 Up 02:45:36 - 03:15:36 404
Tulelake 03:00:40 -24.4 Dark Up 38.2 84.7 Up 02:45:40 - 03:15:40 375
Lakeview 03:00:38 -25.2 Dark Up 39.1 85.6 Up 02:45:38 - 03:15:38 354
Fall River/Burney 03:00:42 -24.3 Dark Up 38.2 84.1 Up 02:45:42 - 03:15:42 294
Cedarville 03:00:39 -25.2 Dark Up 39.2 85.2 Up 02:45:39 - 03:15:39 291
Susanville 03:00:43 -24.7 Dark Up 38.7 84.0 Up 02:45:43 - 03:15:43 212
Greenville 03:00:45 -24.5 Dark Up 38.5 83.6 Up 02:45:45 - 03:15:45 199
Gimple 03:00:44 -24.5 Dark Up 38.5 83.7 Up 02:45:44 - 03:15:44 195
Quincy 03:00:45 -24.4 Dark Up 38.4 83.5 Up 02:45:45 - 03:15:45 181
Portola 03:00:45 -24.8 Dark Up 38.8 83.7 Up 02:45:45 - 03:15:45 152
Reno 03:00:44 -25.2 Dark Up 39.2 83.8 Up 02:45:44 - 03:15:44 104
Carson City 03:00:45 -25.2 Dark Up 39.2 83.5 Up 02:45:45 - 03:15:45 72
Gardnerville 03:00:46 -25.2 Dark Up 39.2 83.4 Up 02:45:46 - 03:15:46 48
Yerington 03:00:45 -25.6 Dark Up 39.7 83.7 Up 02:45:45 - 03:15:45 30
Hawthorne 03:00:45 -25.9 Dark Up 40.1 83.6 Up 02:45:45 - 03:15:45 -31
Lee Vining 03:00:47 -25.5 Dark Up 39.6 82.9 Up 02:45:47 - 03:15:47 -64
Tonopah 03:00:44 -27.0 Dark Up 41.1 84.0 Up 02:45:44 - 03:15:44 -126
Bishop 03:00:48 -25.9 Dark Up 40.1 82.8 Up 02:45:48 - 03:15:48 -145
Lone Pine 03:00:49 -26.1 Dark Up 40.3 82.3 Up 02:45:49 - 03:15:49 -227
CPSLO 03:00:57 -23.8 Dark Up 38.0 80.0 Up 02:45:57 - 03:15:57 -245
Beatty 03:00:46 -27.1 Dark Up 41.3 83.3 Up 02:45:46 - 03:15:46 -249
Indian Springs 03:00:45 -27.9 Dark Up 42.2 83.5 Up 02:45:45 - 03:15:45 -320
Niwot 03:00:13 -36.3 Dark Up 50.4 93.4 Up 02:45:13 - 03:15:13 -352
Henderson 03:00:45 -28.4 Dark Up 42.7 83.4 Up 02:45:45 - 03:15:45 -396
Wildwood 03:00:56 -25.2 Dark Up 39.5 80.0 Up 02:45:56 - 03:15:56 -438
Searchlight/Boulder City 03:00:46 -28.4 Dark Up 42.6 82.9 Up 02:45:46 - 03:15:46 -452
Laughlin/Bullhead City 03:00:46 -28.6 Dark Up 42.9 82.8 Up 02:45:46 - 03:15:46 -493
Patrick 03:00:44 -29.2 Dark Up 43.5 83.4 Up 02:45:44 - 03:15:44 -497
Kingman/Dolan Springs 03:00:45 -29.0 Dark Up 43.3 83.1 Up 02:45:45 - 03:15:45 -510
Mohave Valley 03:00:46 -28.6 Dark Up 42.9 82.5 Up 02:45:46 - 03:15:46 -519
Idyllwild 03:00:54 -26.6 Dark Up 41.0 80.6 Up 02:45:54 - 03:15:54 -546
DCO 03:00:43 -29.7 Dark Up 44.0 83.4 Up 02:45:43 - 03:15:43 -552
Lake Havasu City 03:00:47 -28.7 Dark Up 43.0 82.3 Up 02:45:47 - 03:15:47 -566
Parker 03:00:48 -28.7 Dark Up 43.0 82.0 Up 02:45:48 - 03:15:48 -601
Blythe 03:00:49 -28.3 Dark Up 42.7 81.4 Up 02:45:49 - 03:15:49 -639
Calipatria 03:00:53 -27.5 Dark Up 41.8 80.5 Up 02:45:53 - 03:15:53 -650
Yuma 03:00:52 -28.2 Dark Up 42.5 80.5 Up 02:45:52 - 03:15:52 -726

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, (2020/01/02 02:58UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 20.24  70
Alnath         05:26:17.5 +28:36:23  1.6  4.97  84
PPM 095117     05:56:33.8 +28:56:32  6.5  2.07  90
PPM 094914     05:48:49.0 +27:21:49  7.9  0.49  88
PPM 094879     05:47:45.2 +27:38:10  8.8  0.28  88
15875          05:48:34.5 +27:51:02 16.6        88
Positions are for J2000

Event circumstances last updated at 2018/06/05 18:22:44 UT

Marc W. Buie, Southwest Research Institute

RECON