RECON: TNO occultation with 15875

Event between (15875) 96TP66 and star GA1160:02279166 with event index number of 1210907

Geocentric closest approach at 2022/09/07 10:57:34 UTC

J2000 position of star is 06:27:06.6 +27:06:12
Equinox of date position of star is 06:28:30.0 +27:05:18
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 152 degrees from the moon. Moon is 88% illuminated.
TNO apparent brightness V=22.3

[RECON map]
TNO is 30.4 AU from the Sun and 30.7 AU from the Earth.
The TNO is moving 16.2 km/sec on the sky relative to the star, or, 2.6 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 1304 km.
The sky-plane scale is 22289.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=204.2 km assuming a 5% albedo -- 12.6 sec chord
Diameter=83.4 km assuming a 30% albedo -- 5.1 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 15875, (2022/09/07 11:00UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:42.1 +27:58:10  1.1 17.33 169
Alhena         06:39:01.3 +16:22:41  1.9 10.98 152
49 Aur         06:36:37.8 +28:00:09  5.0  2.01 153
PPM 095877     06:24:34.8 +27:10:34  8.5  0.88 151
PPM 095982     06:28:30.4 +27:16:32 10.0  0.19 152
15875          06:28:31.8 +27:05:17 16.5       152
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 24.8 km RECON observability=1.0 and success probability=6.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 10:53:54 -22.1 Dark Down 34.8 88.5 Up 10:38:54 - 11:08:54 4402
Victoria 10:53:38 -25.0 Dark Down 32.7 84.8 Up 10:38:38 - 11:08:38 4339
Peachland 10:53:50 -22.4 Dark Down 35.2 88.3 Up 10:38:50 - 11:08:50 4314
Kelowna 10:53:51 -22.2 Dark Down 35.4 88.6 Up 10:38:51 - 11:08:51 4313
Summerland 10:53:49 -22.5 Dark Down 35.2 88.3 Up 10:38:49 - 11:08:49 4299
Penticton 10:53:49 -22.5 Dark Down 35.3 88.3 Up 10:38:49 - 11:08:49 4291
Oliver 10:53:48 -22.7 Dark Down 35.3 88.0 Up 10:38:48 - 11:08:48 4264
Anarchist Mountain Observatory 10:53:47 -22.7 Dark Down 35.4 88.1 Up 10:38:47 - 11:08:47 4245
Tonasket 10:53:45 -23.0 Dark Down 35.4 87.8 Up 10:38:45 - 11:08:45 4223
Okanogan 10:53:43 -23.2 Dark Down 35.2 87.4 Up 10:38:43 - 11:08:43 4202
Brewster 10:53:41 -23.5 Dark Down 35.1 87.1 Up 10:38:41 - 11:08:41 4188
Manson/Chelan 10:53:40 -23.9 Dark Down 34.8 86.7 Up 10:38:40 - 11:08:40 4184
Wenatchee 10:53:37 -24.3 Dark Down 34.7 86.2 Up 10:38:37 - 11:08:37 4152
Ellensburg 10:53:35 -24.7 Dark Down 34.5 85.8 Up 10:38:35 - 11:08:35 4128
Yakima 10:53:33 -24.9 Dark Down 34.4 85.5 Up 10:38:33 - 11:08:33 4096
Sleaford 10:54:30 -13.9 AT Down 43.8 101.7 Up 10:39:30 - 11:09:30 4094
Toppenish/White Swan 10:53:33 -25.0 Dark Down 34.5 85.4 Up 10:38:33 - 11:08:33 4074
Goldendale 10:53:29 -25.6 Dark Down 34.2 84.8 Up 10:38:29 - 11:08:29 4045
The Dalles 10:53:27 -25.9 Dark Down 33.9 84.4 Up 10:38:27 - 11:08:27 4039
Maupin 10:53:26 -26.2 Dark Down 33.9 84.1 Up 10:38:26 - 11:08:26 4002
PNWRO 10:53:33 -24.4 Dark Down 35.6 86.2 Up 10:38:33 - 11:08:33 3994
Sisters 10:53:20 -27.0 Dark Down 33.5 83.2 Up 10:38:20 - 11:08:20 3950
Bend 10:53:20 -27.0 Dark Down 33.6 83.2 Up 10:38:20 - 11:08:20 3921
Oregon Observatory 10:53:19 -27.2 Dark Down 33.5 83.0 Up 10:38:19 - 11:08:19 3912
North Lake 10:53:17 -27.3 Dark Down 33.8 82.9 Up 10:38:17 - 11:08:17 3841
Chiloquin 10:53:12 -28.3 Dark Down 33.0 81.9 Up 10:38:12 - 11:08:12 3820
Klamath Falls 10:53:11 -28.5 Dark Down 33.0 81.7 Up 10:38:11 - 11:08:11 3789
Lakeview 10:53:13 -27.7 Dark Down 34.1 82.6 Up 10:38:13 - 11:08:13 3734
Fall River/Burney 10:53:06 -29.1 Dark Down 33.1 81.2 Up 10:38:06 - 11:08:06 3677
Cedarville 10:53:10 -28.0 Dark Down 34.1 82.2 Up 10:38:10 - 11:08:10 3673
Susanville 10:53:04 -29.0 Dark Down 33.6 81.2 Up 10:38:04 - 11:08:04 3597
Greenville 10:53:03 -29.4 Dark Down 33.3 80.8 Up 10:38:03 - 11:08:03 3585
Gimple 10:53:03 -29.3 Dark Down 33.4 80.9 Up 10:38:03 - 11:08:03 3581
Quincy 10:53:02 -29.5 Dark Down 33.3 80.7 Up 10:38:02 - 11:08:02 3567
Portola 10:53:02 -29.3 Dark Down 33.6 80.9 Up 10:38:02 - 11:08:02 3539
Reno 10:53:02 -29.1 Dark Down 34.1 81.1 Up 10:38:02 - 11:08:02 3492
Carson City 10:53:01 -29.3 Dark Down 34.0 80.9 Up 10:38:01 - 11:08:01 3460
Gardnerville 10:53:00 -29.4 Dark Down 34.0 80.7 Up 10:38:00 - 11:08:00 3437
Yerington 10:53:01 -29.0 Dark Down 34.5 81.1 Up 10:38:01 - 11:08:01 3419
Hawthorne 10:53:00 -29.0 Dark Down 34.8 81.0 Up 10:38:00 - 11:08:00 3359
Lee Vining 10:52:57 -29.6 Dark Down 34.3 80.4 Up 10:37:57 - 11:07:57 3329
Tonopah 10:53:02 -28.3 Dark Down 35.8 81.5 Up 10:38:02 - 11:08:02 3265
Bishop 10:52:56 -29.5 Dark Down 34.8 80.4 Up 10:37:56 - 11:07:56 3248
Beatty 10:52:58 -28.7 Dark Down 36.0 80.9 Up 10:37:58 - 11:07:58 3144
Indian Springs 10:52:59 -28.1 Dark Down 36.8 81.2 Up 10:37:59 - 11:07:59 3073
Dunrhomin 10:53:42 -19.0 Dark Down 45.4 90.5 Up 10:38:42 - 11:08:42 3035
CU-SBO 10:53:41 -19.2 Dark Down 45.4 90.2 Up 10:38:41 - 11:08:41 3015
Henderson 10:52:59 -28.0 Dark Down 37.3 81.1 Up 10:37:59 - 11:07:59 2998
Wildwood 10:52:43 -31.6 Dark Down 34.0 78.0 Up 10:37:43 - 11:07:43 2964
Laughlin/Bullhead City 10:52:56 -28.1 Dark Down 37.5 80.7 Up 10:37:56 - 11:07:56 2903
Patrick 10:52:59 -27.5 Dark Down 38.1 81.2 Up 10:37:59 - 11:07:59 2898
Kingman/Dolan Springs 10:52:58 -27.8 Dark Down 37.9 80.9 Up 10:37:58 - 11:07:58 2885
Mohave Valley 10:52:56 -28.3 Dark Down 37.4 80.5 Up 10:37:56 - 11:07:56 2877
Idyllwild 10:52:46 -30.4 Dark Down 35.4 78.6 Up 10:37:46 - 11:07:46 2856
Lake Havasu City 10:52:55 -28.3 Dark Down 37.6 80.3 Up 10:37:55 - 11:07:55 2831
Parker 10:52:54 -28.5 Dark Down 37.5 80.0 Up 10:37:54 - 11:07:54 2797
Calipatria 10:52:46 -29.9 Dark Down 36.3 78.7 Up 10:37:46 - 11:07:46 2752
Yuma 10:52:47 -29.5 Dark Down 37.0 78.8 Up 10:37:47 - 11:07:47 2676
George/Scottsdale 10:52:58 -26.9 Dark Down 39.5 80.8 Up 10:37:58 - 11:07:58 2663

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, (2022/09/07 11:00UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 17.33 169
Alhena         06:37:42.8 +16:23:57  1.9 10.98 152
49 Aur         06:35:12.1 +28:01:20  5.0  2.01 153
PPM 095877     06:23:09.5 +27:11:22  8.5  0.88 151
PPM 095982     06:27:05.2 +27:17:27 10.0  0.19 152
15875          06:27:06.6 +27:06:12 16.5       152
Positions are for J2000

Event circumstances last updated at 2022/03/16 00:57:59 UT

Marc W. Buie, Southwest Research Institute

RECON