RECON: TNO occultation with 505624

Event between (505624) 14GU53 and star GA0880:04825174 with event index number of 1048942

Geocentric closest approach at 2021/01/30 12:44:23 UTC

J2000 position of star is 16:29:23.0 -00:10:14
Equinox of date position of star is 16:30:27.9 -00:12:55
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 91 degrees from the moon. Moon is 96% illuminated.
TNO apparent brightness V=21.9

[RECON map]
TNO is 38.1 AU from the Sun and 38.4 AU from the Earth.
The TNO is moving 21.0 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 77 seconds.
The 1-sigma cross-track error in the shadow position is 1479 km.
The sky-plane scale is 27885.6 km/arcsec.

The TNO has an absolute magnitude Hv=5.9
Diameter=394.5 km assuming a 5% albedo -- 18.8 sec chord
Diameter=161.0 km assuming a 30% albedo -- 7.7 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 505624, (2021/01/30 12:44UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:42.2 -26:28:37  0.9 26.26  97
1Del Oph       16:15:27.1 -03:44:50  2.7  5.15  88
12 Oph         16:37:28.0 -02:22:05  5.8  2.77  93
PPM 162690     16:29:47.0 +00:00:33  8.3  0.28  91
PPM 179833     16:31:04.8 -00:10:17  9.4  0.16  91
505624         16:30:28.0 -00:12:55 16.5        91
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 15.6 km RECON observability=1.0 and success probability=15.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 12:43:37 -27.2 Dark Up 26.3 126.9 Low 12:36:44 - 12:50:30 -1203
Victoria 12:43:21 -30.1 Dark Up 25.1 122.3 Low 12:36:28 - 12:50:14 -1207
Peachland 12:43:34 -27.5 Dark Up 26.4 126.3 Low 12:36:41 - 12:50:27 -1216
Kelowna 12:43:34 -27.3 Dark Up 26.5 126.6 Low 12:36:41 - 12:50:27 -1217
Summerland 12:43:34 -27.5 Dark Up 26.5 126.3 Low 12:36:41 - 12:50:27 -1225
Penticton 12:43:34 -27.4 Dark Up 26.6 126.4 Low 12:36:41 - 12:50:27 -1230
Oliver 12:43:32 -27.5 Dark Up 26.8 126.2 Low 12:36:39 - 12:50:25 -1245
Anarchist Mountain Observatory 12:43:32 -27.4 Dark Up 27.0 126.3 Low 12:36:39 - 12:50:25 -1256
Tonasket 12:43:31 -27.4 Dark Up 27.2 126.1 Low 12:36:38 - 12:50:24 -1270
Okanogan 12:43:28 -27.6 Dark Up 27.3 125.8 Low 12:36:35 - 12:50:21 -1282
Brewster 12:43:27 -27.7 Dark Up 27.3 125.5 Low 12:36:34 - 12:50:20 -1291
Manson/Chelan 12:43:26 -28.0 Dark Up 27.3 125.1 Low 12:36:33 - 12:50:19 -1294
Wenatchee 12:43:24 -28.1 Dark Up 27.4 124.7 Low 12:36:31 - 12:50:17 -1313
Ellensburg 12:43:21 -28.3 Dark Up 27.5 124.3 Low 12:36:28 - 12:50:14 -1329
Yakima 12:43:20 -28.4 Dark Up 27.7 124.1 Low 12:36:27 - 12:50:13 -1348
Toppenish/White Swan 12:43:19 -28.3 Dark Up 28.0 124.2 Low 12:36:26 - 12:50:12 -1362
Goldendale 12:43:15 -28.6 Dark Up 28.0 123.5 Low 12:36:22 - 12:50:08 -1381
The Dalles 12:43:14 -28.9 Dark Up 27.9 123.1 Low 12:36:21 - 12:50:07 -1386
Pasco 12:43:22 -27.4 Dark Up 28.8 125.3 Low 12:36:29 - 12:50:15 -1393
Maupin 12:43:12 -28.9 Dark Up 28.2 123.0 Low 12:36:19 - 12:50:05 -1409
PNWRO 12:43:21 -27.3 Dark Up 29.0 125.4 Low 12:36:28 - 12:50:14 -1410
Sisters 12:43:08 -29.3 Dark Up 28.4 122.1 Low 12:36:15 - 12:50:01 -1445
Redmond 12:43:08 -29.0 Dark Up 28.6 122.5 Low 12:36:15 - 12:50:01 -1454
Bend 12:43:08 -29.1 Dark Up 28.7 122.3 Low 12:36:15 - 12:50:01 -1462
Oregon Observatory 12:43:07 -29.2 Dark Up 28.7 122.1 Low 12:36:14 - 12:50:00 -1469
La Pine/Gilchrist 12:43:06 -29.3 Dark Up 28.7 121.9 Low 12:36:13 - 12:49:59 -1478
North Lake 12:43:04 -28.9 Dark Up 29.3 122.2 Low 12:36:11 - 12:49:57 -1514
Paisley 12:43:04 -28.6 Dark Up 29.9 122.3 Low 12:36:11 - 12:49:57 -1551
Klamath Falls 12:42:59 -29.6 Dark Up 29.3 120.9 Low 12:36:06 - 12:49:52 -1552
Lakeview 12:43:02 -28.5 Dark Up 30.2 122.2 Up 12:36:09 - 12:49:55 -1583
Cedarville 12:43:01 -28.4 Dark Up 30.7 122.0 Up 12:36:08 - 12:49:54 -1624
Fall River/Burney 12:42:55 -29.3 Dark Up 30.2 120.7 Up 12:36:02 - 12:49:48 -1627
Susanville 12:42:55 -28.8 Dark Up 31.0 121.0 Up 12:36:02 - 12:49:48 -1679
Greenville 12:42:53 -29.0 Dark Up 30.9 120.6 Up 12:36:00 - 12:49:46 -1689
Gimple 12:42:53 -29.0 Dark Up 31.0 120.7 Up 12:36:00 - 12:49:46 -1691
Quincy 12:42:52 -29.0 Dark Up 31.0 120.5 Up 12:35:59 - 12:49:45 -1701
Portola 12:42:52 -28.7 Dark Up 31.4 120.9 Up 12:35:59 - 12:49:45 -1718
Reno 12:42:53 -28.2 Dark Up 32.0 121.3 Up 12:36:00 - 12:49:46 -1748
Carson City 12:42:53 -28.1 Dark Up 32.2 121.1 Up 12:36:00 - 12:49:46 -1770
Gardnerville 12:42:52 -28.1 Dark Up 32.3 121.0 Up 12:35:59 - 12:49:45 -1786
Yerington 12:42:54 -27.7 Dark Up 32.7 121.6 Up 12:36:01 - 12:49:47 -1796
Hawthorne 12:42:53 -27.2 Dark Up 33.3 121.8 Up 12:36:00 - 12:49:46 -1837
Lee Vining 12:42:50 -27.6 Dark Up 33.2 121.0 Up 12:35:57 - 12:49:43 -1861
Tonopah 12:42:55 -26.1 Dark Up 34.5 122.8 Up 12:36:02 - 12:49:48 -1898
Bishop 12:42:49 -27.0 Dark Up 34.0 121.3 Up 12:35:56 - 12:49:42 -1916
Beatty 12:42:52 -25.7 Dark Up 35.4 122.5 Up 12:35:59 - 12:49:45 -1984
CPSLO 12:42:35 -28.8 Dark Up 33.4 118.1 Up 12:35:42 - 12:49:28 -2000
Indian Springs 12:42:54 -24.8 Dark Up 36.3 123.3 Up 12:36:01 - 12:49:47 -2031
Dunrhomin 12:43:39 -16.9 AT Up 40.4 136.5 Up 12:36:46 - 12:50:32 -2059
Henderson 12:42:55 -24.2 Dark Up 37.1 123.7 Up 12:36:02 - 12:49:48 -2084
Wildwood 12:42:36 -27.1 Dark Up 35.5 119.2 Up 12:35:43 - 12:49:29 -2129
Laughlin/Bullhead City 12:42:53 -23.8 Dark Up 37.8 123.5 Up 12:36:00 - 12:49:46 -2153
Patrick 12:42:55 -23.2 Dark Up 38.2 124.3 Up 12:36:02 - 12:49:48 -2154
Kingman/Dolan Springs 12:42:54 -23.4 Dark Up 38.2 124.0 Up 12:36:01 - 12:49:47 -2164
Mohave Valley 12:42:52 -23.8 Dark Up 38.0 123.3 Up 12:35:59 - 12:49:45 -2172
Idyllwild 12:42:41 -25.5 Dark Up 37.0 120.6 Up 12:35:48 - 12:49:34 -2199
Lake Havasu City 12:42:51 -23.5 Dark Up 38.4 123.3 Up 12:35:58 - 12:49:44 -2206
Parker 12:42:50 -23.5 Dark Up 38.6 123.0 Up 12:35:57 - 12:49:43 -2232
Blythe 12:42:47 -23.7 Dark Up 38.6 122.4 Up 12:35:54 - 12:49:40 -2261
Calipatria 12:42:42 -24.4 Dark Up 38.2 121.2 Up 12:35:49 - 12:49:35 -2272
George/Scottsdale 12:42:56 -21.4 Dark Up 40.5 125.1 Up 12:36:03 - 12:49:49 -2325
Yuma 12:42:43 -23.6 Dark Up 39.1 121.7 Up 12:35:50 - 12:49:36 -2326

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 505624, (2021/01/30 12:44UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 26.26  97
1Del Oph       16:14:20.7 -03:41:43  2.7  5.15  88
12 Oph         16:36:22.1 -02:19:35  5.8  2.77  93
PPM 162690     16:28:42.2 +00:03:16  8.3  0.28  91
PPM 179833     16:29:59.9 -00:07:36  9.4  0.16  91
505624         16:29:23.0 -00:10:14 16.5        91
Positions are for J2000

Event circumstances last updated at 2021/01/18 21:04:09 UT

Marc W. Buie, Southwest Research Institute

RECON