RECON: TNO occultation with 15VZ184

Event between 15VZ184 and star GA1220:00729518 with event index number of 2727022

Geocentric closest approach at 2024/12/06 11:10:38 UTC

J2000 position of star is 03:41:35.2 +33:26:09
Equinox of date position of star is 03:43:05.8 +33:30:38
Stellar brightness G=15.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 104 degrees from the moon. Moon is 27% illuminated.
Apparent brightness V=22.4

[RECON map]
Object is 28.7 AU from the Sun and 27.8 AU from the Earth.
Apparent velocity is 23.1 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 65 seconds.
The 1-sigma cross-track error in the shadow position is 1134 km.
The sky-plane scale is 20143.0 km/arcsec.

The object has an absolute magnitude Hv=7.8
Diameter=166.0 km assuming a 5% albedo -- 7.3 sec chord
Diameter=67.8 km assuming a 30% albedo -- 3.0 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 15VZ184, (2024/12/06 11:11UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:21.2 +16:33:27  0.8 20.89 112
44Zet Per      03:55:42.3 +31:57:20  2.8  3.06 106
40 Per         03:43:57.9 +34:02:35  4.8  0.55 104
PPM 068708     03:44:02.2 +33:01:00  7.3  0.53 104
PPM 068711     03:44:11.8 +33:38:00  9.5  0.25 104
15VZ184        03:43:10.0 +33:30:51 15.8       104
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 5.0 sigma about the mid-time.
The median site spacing is 24.5 km RECON observability=1.0 and success probability=9.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 11:07:10 -34.0 Dark Down 30.9 286.1 Up 11:01:13 - 11:13:07 3125
Kamloops 11:07:25 -43.1 Dark Down 39.4 277.1 Up 11:01:28 - 11:13:22 2565
Kelowna 11:07:21 -42.8 Dark Down 38.7 278.3 Up 11:01:24 - 11:13:18 2511
Peachland 11:07:22 -43.0 Dark Down 38.9 278.2 Up 11:01:25 - 11:13:19 2492
Summerland 11:07:21 -43.0 Dark Down 38.8 278.4 Up 11:01:24 - 11:13:18 2480
Penticton 11:07:21 -43.0 Dark Down 38.7 278.5 Up 11:01:24 - 11:13:18 2476
Oliver 11:07:20 -43.1 Dark Down 38.7 278.8 Up 11:01:23 - 11:13:17 2442
Anarchist Mountain Observatory 11:07:19 -43.0 Dark Down 38.5 279.1 Up 11:01:22 - 11:13:16 2431
Okanogan 11:07:18 -43.3 Dark Down 38.6 279.4 Up 11:01:21 - 11:13:15 2362
Brewster 11:07:18 -43.5 Dark Down 38.6 279.5 Up 11:01:21 - 11:13:15 2329
Manson/Chelan 11:07:18 -43.8 Dark Down 38.9 279.4 Up 11:01:21 - 11:13:15 2299
Victoria 11:07:25 -45.7 Dark Down 41.1 276.8 Up 11:01:28 - 11:13:22 2274
Wenatchee 11:07:17 -44.0 Dark Down 38.9 279.7 Up 11:01:20 - 11:13:14 2247
Ellensburg 11:07:17 -44.3 Dark Down 39.0 279.9 Up 11:01:20 - 11:13:14 2200
Yakima 11:07:16 -44.4 Dark Down 38.9 280.2 Up 11:01:19 - 11:13:13 2159
PNWRO 11:07:12 -43.4 Dark Down 37.7 281.7 Up 11:01:15 - 11:13:09 2150
Toppenish/White Swan 11:07:15 -44.3 Dark Down 38.8 280.5 Up 11:01:18 - 11:13:12 2143
Dunrhomin 11:06:41 -34.1 Dark Down 26.5 292.6 Low 11:00:44 - 11:12:38 2083
Nikitin 11:06:40 -34.1 Dark Down 26.5 292.7 Low 11:00:43 - 11:12:37 2065
CU-SBO 11:06:40 -34.1 Dark Down 26.5 292.7 Low 11:00:43 - 11:12:37 2056
The Dalles 11:07:15 -45.1 Dark Down 39.2 280.6 Up 11:01:18 - 11:13:12 2042
Maupin 11:07:14 -45.1 Dark Down 39.0 281.0 Up 11:01:17 - 11:13:11 2004
Sisters 11:07:14 -45.7 Dark Down 39.2 281.4 Up 11:01:17 - 11:13:11 1901
Bend 11:07:12 -45.5 Dark Down 39.0 281.7 Up 11:01:15 - 11:13:09 1885
Oregon Observatory 11:07:13 -45.7 Dark Down 39.0 281.8 Up 11:01:16 - 11:13:10 1863
Chiloquin 11:07:11 -46.2 Dark Down 39.0 282.6 Up 11:01:14 - 11:13:08 1718
Klamath Falls 11:07:10 -46.3 Dark Down 38.9 282.9 Up 11:01:13 - 11:13:07 1685
Cedarville 11:07:06 -45.2 Dark Down 37.6 284.3 Up 11:01:09 - 11:13:03 1664
Fall River/Burney 11:07:07 -46.2 Dark Down 38.4 284.0 Up 11:01:10 - 11:13:04 1577
Gimple 11:07:05 -46.0 Dark Down 37.8 285.0 Up 11:01:08 - 11:13:02 1501
Greenville 11:07:05 -46.0 Dark Down 37.8 284.9 Up 11:01:08 - 11:13:02 1498
Portola 11:07:04 -45.7 Dark Down 37.4 285.4 Up 11:01:07 - 11:13:01 1480
Quincy 11:07:04 -46.1 Dark Down 37.8 285.1 Up 11:01:07 - 11:13:01 1478
Reno 11:07:02 -45.3 Dark Down 36.8 285.9 Up 11:01:05 - 11:12:59 1474
Yerington 11:06:59 -44.8 Dark Down 36.2 286.6 Up 11:01:02 - 11:12:56 1439
Carson City 11:07:01 -45.3 Dark Down 36.7 286.2 Up 11:01:04 - 11:12:58 1438
Gardnerville 11:07:01 -45.3 Dark Down 36.6 286.4 Up 11:01:04 - 11:12:58 1415
Hawthorne 11:06:58 -44.5 Dark Down 35.7 287.2 Up 11:01:01 - 11:12:55 1410
Lee Vining 11:06:58 -44.9 Dark Down 35.9 287.4 Up 11:01:01 - 11:12:55 1336
Beatty 11:06:52 -43.1 Dark Down 33.8 289.1 Up 11:00:55 - 11:12:49 1310
Bishop 11:06:56 -44.4 Dark Down 35.1 288.1 Up 11:00:59 - 11:12:53 1300
Patrick 11:06:45 -40.8 Dark Down 31.1 291.1 Up 11:00:48 - 11:12:42 1268
Laughlin/Bullhead City 11:06:45 -41.4 Dark Down 31.5 291.0 Up 11:00:48 - 11:12:42 1216
George/Scottsdale 11:06:39 -39.1 Dark Down 28.9 292.8 Low 11:00:42 - 11:12:36 1178
Lake Havasu City 11:06:44 -41.2 Dark Down 31.1 291.5 Up 11:00:47 - 11:12:41 1158
Idyllwild 11:06:47 -43.2 Dark Down 32.7 291.0 Up 11:00:50 - 11:12:44 992
Calipatria 11:06:44 -42.2 Dark Down 31.5 291.8 Up 11:00:47 - 11:12:41 975
Yuma 11:06:42 -41.4 Dark Down 30.7 292.4 Up 11:00:45 - 11:12:39 966
Wildwood 11:06:51 -44.7 Dark Down 34.2 290.1 Up 11:00:54 - 11:12:48 959

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 15VZ184, (2024/12/06 11:11UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 20.89 112
44Zet Per      03:54:07.9 +31:53:01  2.8  3.06 106
40 Per         03:42:22.6 +33:57:54  4.8  0.55 104
PPM 068708     03:42:27.7 +32:56:19  7.3  0.53 104
PPM 068711     03:42:36.8 +33:33:19  9.5  0.25 104
15VZ184        03:41:35.2 +33:26:09 15.8       104
Positions are for J2000

Event circumstances last updated at 2023/10/27 01:53:55 UT

Marc W. Buie, Southwest Research Institute

RECON