RECON: TNO occultation with 06QJ181

Event between 06QJ181 and star GA1000:02307457 with event index number of 1458996

Geocentric closest approach at 2026/01/04 10:26:55 UTC

J2000 position of star is 06:52:41.6 +11:05:50
Equinox of date position of star is 06:53:46.3 +11:04:20
Stellar brightness G=13.8, use SENSEUP=64
Star is 21 degrees from the moon. Moon is 98% illuminated.
TNO apparent brightness V=21.9

[RECON map]
TNO is 31.7 AU from the Sun and 30.7 AU from the Earth.
The TNO is moving 24.1 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 585 seconds.
The 1-sigma cross-track error in the shadow position is 5996 km.
The sky-plane scale is 22256.6 km/arcsec.

The TNO has an absolute magnitude Hv=6.9
Diameter=245.5 km assuming a 5% albedo -- 10.2 sec chord
Diameter=100.2 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is 3:1EE+3:1II
 
 
 
 
 
 

Star training set for 06QJ181, (2026/01/04 10:27UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:34.8 +07:24:35  0.4 14.66  35
Alhena         06:39:12.8 +16:22:30  1.9  6.43  21
PPM 151572     06:57:51.7 +09:55:15  5.9  1.46  21
PPM 123208     06:54:48.9 +10:57:44  7.4  0.20  21
06QJ181        06:54:08.2 +11:03:50 13.8        21
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 1.5 sigma about the mid-time.
The median site spacing is 19.5 km RECON observability=1.0 and success probability=7.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 10:25:14 -51.1 Dark Up 40.3 232.0 Up 10:10:14 - 10:40:14 -923
Summerland 10:25:15 -51.4 Dark Up 40.6 231.9 Up 10:10:15 - 10:40:15 -950
Penticton 10:25:14 -51.3 Dark Up 40.6 232.1 Up 10:10:14 - 10:40:14 -955
Okanagan Falls 10:25:14 -51.4 Dark Up 40.7 232.2 Up 10:10:14 - 10:40:14 -971
Oliver 10:25:13 -51.5 Dark Up 40.8 232.3 Up 10:10:13 - 10:40:13 -984
Anarchist Mountain Observatory 10:25:12 -51.5 Dark Up 40.8 232.7 Up 10:10:12 - 10:40:12 -997
Oroville 10:25:12 -51.6 Dark Up 40.9 232.6 Up 10:10:12 - 10:40:12 -1004
Tonasket 10:25:12 -51.7 Dark Up 41.1 232.8 Up 10:10:12 - 10:40:12 -1023
Okanogan 10:25:12 -51.9 Dark Up 41.3 232.9 Up 10:10:12 - 10:40:12 -1053
Brewster 10:25:12 -52.2 Dark Up 41.6 232.8 Up 10:10:12 - 10:40:12 -1078
Manson/Chelan 10:25:12 -52.5 Dark Up 41.9 232.6 Up 10:10:12 - 10:40:12 -1099
Entiat 10:25:12 -52.7 Dark Up 42.1 232.6 Up 10:10:12 - 10:40:12 -1118
Wenatchee 10:25:11 -52.9 Dark Up 42.3 232.7 Up 10:10:11 - 10:40:11 -1141
Ellensburg 10:25:11 -53.2 Dark Up 42.7 232.8 Up 10:10:11 - 10:40:11 -1179
Yakima 10:25:10 -53.4 Dark Up 42.9 233.1 Up 10:10:10 - 10:40:10 -1214
Pasco 10:25:06 -52.7 Dark Up 42.3 234.9 Up 10:10:06 - 10:40:06 -1229
Toppenish/White Swan 10:25:10 -53.4 Dark Up 43.0 233.4 Up 10:10:10 - 10:40:10 -1231
PNWRO 10:25:05 -52.7 Dark Up 42.4 235.3 Up 10:10:05 - 10:40:05 -1248
George/Umatilla 10:25:06 -53.0 Dark Up 42.7 234.9 Up 10:10:06 - 10:40:06 -1260
Goldendale 10:25:09 -53.9 Dark Up 43.5 233.3 Up 10:10:09 - 10:40:09 -1283
The Dalles 10:25:10 -54.3 Dark Up 43.9 233.1 Up 10:10:10 - 10:40:10 -1307
Maupin 10:25:09 -54.4 Dark Up 44.1 233.5 Up 10:10:09 - 10:40:09 -1343
Madras/Culver 10:25:08 -54.7 Dark Up 44.4 233.9 Up 10:10:08 - 10:40:08 -1392
Redmond 10:25:07 -54.9 Dark Up 44.7 234.2 Up 10:10:07 - 10:40:07 -1424
Sisters 10:25:08 -55.1 Dark Up 44.9 233.7 Up 10:10:08 - 10:40:08 -1426
Bend 10:25:07 -55.0 Dark Up 44.9 234.2 Up 10:10:07 - 10:40:07 -1445
Oregon Observatory 10:25:08 -55.2 Dark Up 45.1 234.2 Up 10:10:08 - 10:40:08 -1461
La Pine/Gilchrist 10:25:07 -55.3 Dark Up 45.2 234.3 Up 10:10:07 - 10:40:07 -1480
North Lake 10:25:05 -55.1 Dark Up 45.1 235.3 Up 10:10:05 - 10:40:05 -1514
Paisley 10:25:03 -55.1 Dark Up 45.2 236.1 Up 10:10:03 - 10:40:03 -1560
Chiloquin 10:25:06 -56.1 Dark Up 46.1 234.8 Up 10:10:06 - 10:40:06 -1585
Lakeview 10:25:01 -55.2 Dark Up 45.4 236.7 Up 10:10:01 - 10:40:01 -1604
Niwot 10:24:19 -44.8 Dark Up 36.0 252.4 Up 10:09:19 - 10:39:19 -1608
Klamath Falls 10:25:05 -56.2 Dark Up 46.2 235.2 Up 10:10:05 - 10:40:05 -1615
SwRI 10:24:20 -44.9 Dark Up 36.1 252.4 Up 10:09:20 - 10:39:20 -1618
Tulelake 10:25:04 -56.1 Dark Up 46.2 235.7 Up 10:10:04 - 10:40:04 -1637
Cedarville 10:24:59 -55.3 Dark Up 45.6 237.5 Up 10:09:59 - 10:39:59 -1662
Fall River/Burney 10:25:02 -56.4 Dark Up 46.6 236.6 Up 10:10:02 - 10:40:02 -1720
Susanville 10:24:59 -56.1 Dark Up 46.5 237.9 Up 10:09:59 - 10:39:59 -1771
Gimple 10:24:59 -56.3 Dark Up 46.8 238.0 Up 10:09:59 - 10:39:59 -1799
Greenville 10:24:59 -56.4 Dark Up 46.9 237.9 Up 10:09:59 - 10:39:59 -1800
Quincy 10:24:59 -56.5 Dark Up 47.0 238.1 Up 10:09:59 - 10:39:59 -1819
Portola 10:24:57 -56.2 Dark Up 46.7 238.7 Up 10:09:57 - 10:39:57 -1825
Reno 10:24:55 -55.8 Dark Up 46.4 239.6 Up 10:09:55 - 10:39:55 -1843
Carson City 10:24:54 -55.9 Dark Up 46.6 240.0 Up 10:09:54 - 10:39:54 -1877
Yerington 10:24:52 -55.5 Dark Up 46.3 240.8 Up 10:09:52 - 10:39:52 -1888
Gardnerville 10:24:54 -55.9 Dark Up 46.7 240.2 Up 10:09:54 - 10:39:54 -1899
Hawthorne 10:24:50 -55.3 Dark Up 46.1 241.7 Up 10:09:50 - 10:39:50 -1926
Tonopah 10:24:45 -54.3 Dark Up 45.4 243.5 Up 10:09:45 - 10:39:45 -1954
Lee Vining 10:24:50 -55.8 Dark Up 46.8 241.8 Up 10:09:50 - 10:39:50 -1985
Bishop 10:24:47 -55.4 Dark Up 46.5 243.0 Up 10:09:47 - 10:39:47 -2034
Beatty 10:24:41 -54.2 Dark Up 45.6 245.0 Up 10:09:41 - 10:39:41 -2059
Indian Springs 10:24:38 -53.5 Dark Up 44.9 246.3 Up 10:09:38 - 10:39:38 -2077
Lone Pine 10:24:45 -55.3 Dark Up 46.6 244.1 Up 10:09:45 - 10:39:45 -2103
Henderson 10:24:35 -53.0 Dark Up 44.6 247.4 Up 10:09:35 - 10:39:35 -2120
Patrick 10:24:31 -52.3 Dark Up 44.0 249.0 Up 10:09:31 - 10:39:31 -2166
Searchlight/Boulder City 10:24:34 -53.1 Dark Up 44.8 248.0 Up 10:09:34 - 10:39:34 -2175
DCO 10:24:28 -51.7 Dark Up 43.6 249.8 Up 10:09:28 - 10:39:28 -2186
Kingman/Dolan Springs 10:24:31 -52.4 Dark Up 44.3 249.0 Up 10:09:31 - 10:39:31 -2190
Laughlin/Bullhead City 10:24:32 -52.9 Dark Up 44.7 248.6 Up 10:09:32 - 10:39:32 -2199
Mohave Valley 10:24:32 -52.9 Dark Up 44.8 248.8 Up 10:09:32 - 10:39:32 -2226
CPSLO 10:24:50 -57.7 Dark Up 49.1 242.8 Up 10:09:50 - 10:39:50 -2260
Lake Havasu City 10:24:30 -52.8 Dark Up 44.7 249.4 Up 10:09:30 - 10:39:30 -2261
Parker 10:24:30 -52.8 Dark Up 44.8 249.8 Up 10:09:30 - 10:39:30 -2295
Blythe 10:24:30 -53.1 Dark Up 45.2 250.0 Up 10:09:30 - 10:39:30 -2351
Wildwood 10:24:42 -56.3 Dark Up 48.1 246.0 Up 10:09:42 - 10:39:42 -2355
Idyllwild 10:24:36 -54.8 Dark Up 46.8 248.1 Up 10:09:36 - 10:39:36 -2367
Calipatria 10:24:32 -53.9 Dark Up 46.1 249.7 Up 10:09:32 - 10:39:32 -2412
Yuma 10:24:28 -53.2 Dark Up 45.6 250.8 Up 10:09:28 - 10:39:28 -2443

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 06QJ181, (2026/01/04 10:27UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 14.66  35
Alhena         06:37:42.8 +16:23:57  1.9  6.43  21
PPM 151572     06:56:25.8 +09:57:23  5.9  1.46  21
PPM 123208     06:53:22.4 +10:59:46  7.4  0.20  21
06QJ181        06:52:41.6 +11:05:50 13.8        21
Positions are for J2000

Event circumstances last updated at 2019/06/08 13:21:35 UT

Marc W. Buie, Southwest Research Institute

RECON