RECON: TNO occultation with 15875

Event between (15875) 96TP66 and star GA1160:02382565 with event index number of 1299955

Geocentric closest approach at 2023/12/13 05:58:20 UTC

J2000 position of star is 06:34:29.2 +26:57:30
Equinox of date position of star is 06:35:58.6 +26:56:17
Stellar brightness G=14.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 167 degrees from the moon. Moon is 0% illuminated.
Apparent brightness V=22.3

[RECON map]
Object is 30.8 AU from the Sun and 29.8 AU from the Earth.
Apparent velocity is 23.3 km/sec on the sky relative to the star, or, 3.9 arcsec/hr.
The 1-sigma error in the time of the event is 279 seconds.
The 1-sigma cross-track error in the shadow position is 1390 km.
The sky-plane scale is 21640.9 km/arcsec.

The object has an absolute magnitude Hv=7.4
Diameter=204.2 km assuming a 5% albedo -- 8.7 sec chord
Diameter=83.4 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 15875, (2023/12/13 05:58UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:46.8 +27:57:59  1.1 15.73 151
Alhena         06:39:05.7 +16:22:36  1.9 10.59 162
49 Aur         06:36:42.5 +28:00:05  5.0  1.08 167
PPM 096294     06:40:05.1 +26:52:57  8.3  0.92 166
PPM 096204     06:36:15.7 +27:01:33  9.1  0.11 167
15875          06:35:58.9 +26:56:17 14.6       166
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 3.2 sigma about the mid-time.
The median site spacing is 26.1 km RECON observability=1.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 06:00:38 -54.6 Dark Down 47.3 105.5 Up 05:45:38 - 06:15:38 7215
Kelowna 06:00:38 -55.6 Dark Down 48.1 105.5 Up 05:45:38 - 06:15:38 7120
Peachland 06:00:39 -55.5 Dark Down 47.9 105.1 Up 05:45:39 - 06:15:39 7116
Sleaford 06:00:01 -59.0 Dark Down 54.9 122.8 Up 05:45:01 - 06:15:01 7110
Summerland 06:00:39 -55.6 Dark Down 48.0 105.1 Up 05:45:39 - 06:15:39 7100
Penticton 06:00:39 -55.7 Dark Down 48.1 105.1 Up 05:45:39 - 06:15:39 7091
Victoria 06:00:50 -54.4 Dark Down 45.9 100.6 Up 05:45:50 - 06:15:50 7078
Oliver 06:00:40 -56.0 Dark Down 48.2 104.7 Up 05:45:40 - 06:15:40 7058
Anarchist Mountain Observatory 06:00:40 -56.2 Dark Down 48.4 104.7 Up 05:45:40 - 06:15:40 7037
Okanogan 06:00:42 -56.5 Dark Down 48.4 103.8 Up 05:45:42 - 06:15:42 6980
Brewster 06:00:43 -56.5 Dark Down 48.3 103.3 Up 05:45:43 - 06:15:43 6958
Manson/Chelan 06:00:44 -56.5 Dark Down 48.1 102.8 Up 05:45:44 - 06:15:44 6946
Wenatchee 06:00:46 -56.7 Dark Down 48.1 102.1 Up 05:45:46 - 06:15:46 6904
Ellensburg 06:00:48 -56.8 Dark Down 48.1 101.5 Up 05:45:48 - 06:15:48 6869
Yakima 06:00:48 -57.0 Dark Down 48.1 101.0 Up 05:45:48 - 06:15:48 6830
Toppenish/White Swan 06:00:48 -57.3 Dark Down 48.3 100.9 Up 05:45:48 - 06:15:48 6806
The Dalles 06:00:52 -57.2 Dark Down 47.9 99.4 Up 05:45:52 - 06:15:52 6748
PNWRO 06:00:46 -58.3 Dark Down 49.4 101.8 Up 05:45:46 - 06:15:46 6737
Maupin 06:00:53 -57.5 Dark Down 48.0 99.0 Up 05:45:53 - 06:15:53 6704
Sisters 06:00:56 -57.7 Dark Down 47.8 97.7 Up 05:45:56 - 06:15:56 6630
Bend 06:00:56 -58.0 Dark Down 48.0 97.6 Up 05:45:56 - 06:15:56 6600
Oregon Observatory 06:00:56 -58.0 Dark Down 48.0 97.3 Up 05:45:56 - 06:15:56 6586
Chiloquin 06:01:00 -58.4 Dark Down 47.8 95.6 Up 05:46:00 - 06:16:00 6466
Klamath Falls 06:01:01 -58.6 Dark Down 47.9 95.3 Up 05:46:01 - 06:16:01 6430
Cedarville 06:00:58 -60.0 Dark Down 49.2 95.7 Up 05:45:58 - 06:15:58 6322
Fall River/Burney 06:01:03 -59.4 Dark Down 48.3 94.2 Up 05:46:03 - 06:16:03 6303
Greenville 06:01:03 -60.1 Dark Down 48.7 93.5 Up 05:46:03 - 06:16:03 6201
Gimple 06:01:03 -60.2 Dark Down 48.8 93.6 Up 05:46:03 - 06:16:03 6199
Quincy 06:01:03 -60.2 Dark Down 48.7 93.3 Up 05:46:03 - 06:16:03 6180
Portola 06:01:02 -60.6 Dark Down 49.1 93.5 Up 05:46:02 - 06:16:02 6156
Reno 06:01:02 -61.2 Dark Down 49.6 93.6 Up 05:46:02 - 06:16:02 6113
Carson City 06:01:02 -61.3 Dark Down 49.7 93.2 Up 05:46:02 - 06:16:02 6076
Gardnerville 06:01:02 -61.5 Dark Down 49.7 93.0 Up 05:46:02 - 06:16:02 6050
Yerington 06:01:00 -61.9 Dark Down 50.1 93.4 Up 05:46:00 - 06:16:00 6041
Hawthorne 06:01:00 -62.4 Dark Down 50.6 93.2 Up 05:46:00 - 06:16:00 5981
Lee Vining 06:01:02 -62.3 Dark Down 50.2 92.2 Up 05:46:02 - 06:16:02 5935
Dunrhomin 06:00:18 -69.4 Dark Down 60.4 106.7 Up 05:45:18 - 06:15:18 5895
Nikitin 06:00:18 -69.5 Dark Down 60.4 106.4 Up 05:45:18 - 06:15:18 5876
CU-SBO 06:00:18 -69.6 Dark Down 60.4 106.2 Up 05:45:18 - 06:15:18 5870
Bishop 06:01:02 -63.1 Dark Down 50.8 92.0 Up 05:46:02 - 06:16:02 5855
Beatty 06:00:57 -64.5 Dark Down 52.1 92.4 Up 05:45:57 - 06:15:57 5769
Patrick 06:00:51 -67.2 Dark Down 54.5 92.2 Up 05:45:51 - 06:15:51 5547
Laughlin/Bullhead City 06:00:54 -66.8 Dark Down 54.0 91.5 Up 05:45:54 - 06:15:54 5537
Wildwood 06:01:07 -64.2 Dark Down 50.7 87.8 Up 05:46:07 - 06:16:07 5521
Lake Havasu City 06:00:54 -67.3 Dark Down 54.2 90.7 Up 05:45:54 - 06:15:54 5460
Idyllwild 06:01:02 -65.7 Dark Down 52.2 88.4 Up 05:46:02 - 06:16:02 5436
Calipatria 06:01:00 -66.9 Dark Down 53.2 88.2 Up 05:46:00 - 06:16:00 5344
George/Scottsdale 06:00:48 -69.4 Dark Down 56.2 91.0 Up 05:45:48 - 06:15:48 5324
Yuma 06:00:57 -67.7 Dark Down 53.9 88.0 Up 05:45:57 - 06:15:57 5277

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, (2023/12/13 05:58UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 15.73 151
Alhena         06:37:42.8 +16:23:57  1.9 10.59 162
49 Aur         06:35:12.1 +28:01:20  5.0  1.08 167
PPM 096294     06:38:35.5 +26:54:19  8.3  0.92 166
PPM 096204     06:34:45.9 +27:02:47  9.1  0.11 167
15875          06:34:29.2 +26:57:30 14.6       167
Positions are for J2000

Event circumstances last updated at 2023/11/05 04:13:05 UT

Marc W. Buie, Southwest Research Institute

RECON