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 11:10:54 UTC

J2000 position of star is 03:41:35.2 +33:26:09
Equinox of date position of star is 03:42:58.6 +33:30:17
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.
TNO apparent brightness V=22.4

[RECON map]
TNO is 28.7 AU from the Sun and 27.8 AU from the Earth.
The TNO is moving 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 74 seconds.
The 1-sigma cross-track error in the shadow position is 1188 km.
The sky-plane scale is 20142.9 km/arcsec.

The TNO has an absolute magnitude Hv=7.8
Diameter=166.0 km assuming a 5% albedo -- 7.2 sec chord
Diameter=67.8 km assuming a 30% albedo -- 2.9 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 22.1 km RECON observability=1.0 and success probability=27.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 11:07:26 -34.0 Dark Down 30.8 286.1 Up 11:00:47 - 11:14:04 2968
Kamloops 11:07:40 -43.1 Dark Down 39.3 277.1 Up 11:01:02 - 11:14:19 2408
Kelowna 11:07:37 -42.8 Dark Down 38.7 278.4 Up 11:00:58 - 11:14:15 2353
Peachland 11:07:37 -43.0 Dark Down 38.8 278.3 Up 11:00:59 - 11:14:16 2335
Summerland 11:07:37 -43.0 Dark Down 38.8 278.5 Up 11:00:58 - 11:14:15 2323
Penticton 11:07:36 -42.9 Dark Down 38.7 278.6 Up 11:00:58 - 11:14:15 2319
Oliver 11:07:35 -43.0 Dark Down 38.6 278.9 Up 11:00:57 - 11:14:14 2285
Anarchist Mountain Observatory 11:07:35 -42.9 Dark Down 38.5 279.1 Up 11:00:56 - 11:14:13 2274
Tonasket 11:07:34 -43.1 Dark Down 38.5 279.3 Up 11:00:56 - 11:14:13 2242
Okanogan 11:07:34 -43.3 Dark Down 38.5 279.5 Up 11:00:55 - 11:14:12 2205
Brewster 11:07:34 -43.5 Dark Down 38.6 279.6 Up 11:00:55 - 11:14:12 2172
Manson/Chelan 11:07:34 -43.8 Dark Down 38.8 279.5 Up 11:00:55 - 11:14:12 2142
Victoria 11:07:41 -45.6 Dark Down 41.0 276.8 Up 11:01:02 - 11:14:19 2117
Wenatchee 11:07:33 -44.0 Dark Down 38.9 279.7 Up 11:00:54 - 11:14:11 2090
Ellensburg 11:07:33 -44.2 Dark Down 38.9 279.9 Up 11:00:54 - 11:14:11 2043
Pasco 11:07:28 -43.5 Dark Down 37.8 281.4 Up 11:00:50 - 11:14:07 2010
Yakima 11:07:32 -44.4 Dark Down 38.9 280.2 Up 11:00:53 - 11:14:10 2002
PNWRO 11:07:28 -43.4 Dark Down 37.6 281.7 Up 11:00:49 - 11:14:06 1993
Toppenish/White Swan 11:07:31 -44.3 Dark Down 38.7 280.5 Up 11:00:52 - 11:14:09 1986
Dunrhomin 11:06:56 -34.0 Dark Down 26.5 292.6 Low 11:00:18 - 11:13:35 1927
Goldendale 11:07:30 -44.7 Dark Down 38.9 280.7 Up 11:00:52 - 11:14:09 1918
The Dalles 11:07:31 -45.0 Dark Down 39.1 280.6 Up 11:00:52 - 11:14:09 1885
Maupin 11:07:30 -45.1 Dark Down 39.0 281.0 Up 11:00:51 - 11:14:08 1847
Redmond 11:07:28 -45.3 Dark Down 38.9 281.7 Up 11:00:50 - 11:14:07 1753
Sisters 11:07:29 -45.6 Dark Down 39.1 281.4 Up 11:00:50 - 11:14:07 1744
Bend 11:07:28 -45.5 Dark Down 38.9 281.8 Up 11:00:49 - 11:14:06 1728
Oregon Observatory 11:07:28 -45.6 Dark Down 39.0 281.8 Up 11:00:49 - 11:14:06 1706
La Pine/Gilchrist 11:07:27 -45.7 Dark Down 39.0 282.0 Up 11:00:49 - 11:14:06 1684
North Lake 11:07:26 -45.4 Dark Down 38.5 282.6 Up 11:00:47 - 11:14:04 1658
Paisley 11:07:24 -45.2 Dark Down 38.1 283.3 Up 11:00:46 - 11:14:03 1613
Lakeview 11:07:23 -45.2 Dark Down 37.8 283.8 Up 11:00:44 - 11:14:01 1568
Chiloquin 11:07:26 -46.2 Dark Down 39.0 282.6 Up 11:00:48 - 11:14:05 1561
Klamath Falls 11:07:26 -46.2 Dark Down 38.9 283.0 Up 11:00:47 - 11:14:04 1528
Cedarville 11:07:21 -45.2 Dark Down 37.5 284.3 Up 11:00:43 - 11:14:00 1507
Fall River/Burney 11:07:23 -46.2 Dark Down 38.3 284.1 Up 11:00:44 - 11:14:01 1420
Susanville 11:07:20 -45.7 Dark Down 37.6 284.9 Up 11:00:42 - 11:13:59 1379
Gimple 11:07:20 -45.9 Dark Down 37.7 285.0 Up 11:00:42 - 11:13:59 1344
Greenville 11:07:20 -46.0 Dark Down 37.8 285.0 Up 11:00:42 - 11:13:59 1341
Portola 11:07:19 -45.7 Dark Down 37.3 285.5 Up 11:00:40 - 11:13:57 1323
Quincy 11:07:20 -46.0 Dark Down 37.7 285.1 Up 11:00:42 - 11:13:59 1321
Reno 11:07:17 -45.2 Dark Down 36.8 286.0 Up 11:00:39 - 11:13:56 1317
Yerington 11:07:15 -44.8 Dark Down 36.1 286.7 Up 11:00:37 - 11:13:54 1282
Carson City 11:07:17 -45.2 Dark Down 36.7 286.2 Up 11:00:38 - 11:13:55 1281
Gardnerville 11:07:16 -45.2 Dark Down 36.6 286.4 Up 11:00:38 - 11:13:55 1258
Tonopah 11:07:10 -43.4 Dark Down 34.4 288.2 Up 11:00:32 - 11:13:49 1254
Hawthorne 11:07:13 -44.4 Dark Down 35.6 287.2 Up 11:00:35 - 11:13:52 1253
Lee Vining 11:07:13 -44.8 Dark Down 35.8 287.4 Up 11:00:35 - 11:13:52 1179
Indian Springs 11:07:05 -42.2 Dark Down 32.8 289.8 Up 11:00:26 - 11:13:43 1160
Beatty 11:07:07 -43.1 Dark Down 33.7 289.1 Up 11:00:29 - 11:13:46 1154
Bishop 11:07:11 -44.3 Dark Down 35.1 288.1 Up 11:00:32 - 11:13:49 1143
Henderson 11:07:03 -41.7 Dark Down 32.1 290.4 Up 11:00:24 - 11:13:41 1132
Patrick 11:07:00 -40.8 Dark Down 31.0 291.2 Up 11:00:22 - 11:13:39 1111
Kingman/Dolan Springs 11:07:00 -40.9 Dark Down 31.1 291.2 Up 11:00:21 - 11:13:38 1082
Laughlin/Bullhead City 11:07:01 -41.4 Dark Down 31.5 291.0 Up 11:00:22 - 11:13:39 1060
Mohave Valley 11:07:00 -41.4 Dark Down 31.4 291.2 Up 11:00:22 - 11:13:39 1033
George/Scottsdale 11:06:54 -39.1 Dark Down 28.9 292.9 Low 11:00:15 - 11:13:32 1022
Lake Havasu City 11:06:59 -41.1 Dark Down 31.1 291.5 Up 11:00:21 - 11:13:38 1002
Parker 11:06:59 -41.1 Dark Down 30.9 291.7 Up 11:00:20 - 11:13:37 968
Blythe 11:06:59 -41.3 Dark Down 30.9 291.9 Up 11:00:20 - 11:13:37 904
CPSLO 11:07:13 -46.3 Dark Down 36.2 288.6 Up 11:00:34 - 11:13:51 856
Idyllwild 11:07:03 -43.1 Dark Down 32.6 291.1 Up 11:00:24 - 11:13:41 835
Calipatria 11:07:00 -42.1 Dark Down 31.5 291.8 Up 11:00:21 - 11:13:38 818
Yuma 11:06:58 -41.4 Dark Down 30.6 292.4 Up 11:00:19 - 11:13:36 809
Wildwood 11:07:07 -44.7 Dark Down 34.2 290.2 Up 11:00:28 - 11:13:45 803

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 2021/12/02 02:12:46 UT

Marc W. Buie, Southwest Research Institute

RECON