RECON: TNO occultation with 602716

Event between (602716) 14OP394 and star GA0960:00142731 with event index number of 2722142

Geocentric closest approach at 2025/02/02 02:23:17 UTC

J2000 position of star is 01:30:01.1 +07:15:50
Equinox of date position of star is 01:31:09.9 +07:22:36
Stellar brightness G=16.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 23 degrees from the moon. Moon is 16% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 45.8 AU from the Sun and 46.1 AU from the Earth.
The TNO is moving 14.4 km/sec on the sky relative to the star, or, 1.6 arcsec/hr.
The 1-sigma error in the time of the event is 315 seconds.
The 1-sigma cross-track error in the shadow position is 2788 km.
The sky-plane scale is 33431.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.1
Diameter=364.8 km assuming a 5% albedo -- 25.3 sec chord
Diameter=148.9 km assuming a 30% albedo -- 10.3 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 602716, (2025/02/02 02:23UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:21.8 +16:33:28  0.8 46.30  69
6Bet Ari       01:56:01.9 +20:55:47  2.6 14.79  34
PPM 144653     01:30:21.9 +07:25:22  6.4  0.24  23
602716         01:31:19.9 +07:23:34 16.1        23
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 2.9 sigma about the mid-time.
The median site spacing is 32.5 km RECON observability=0.4 and success probability=16.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 02:26:52 -14.7 AT Up 41.4 216.0 Up 02:11:52 - 02:41:52 -634
Sleaford 02:27:47 -23.9 Dark Up 34.0 231.8 Up 02:12:47 - 02:42:47 -711
Kelowna 02:26:56 -15.2 AT Up 41.7 217.5 Up 02:11:56 - 02:41:56 -721
Peachland 02:26:54 -15.0 AT Up 41.9 217.2 Up 02:11:54 - 02:41:54 -726
Summerland 02:26:56 -15.0 AT Up 42.0 217.4 Up 02:11:56 - 02:41:56 -741
Penticton 02:26:56 -15.1 AT Up 42.0 217.6 Up 02:11:56 - 02:41:56 -749
Victoria 02:26:39 -12.4 AT Up 44.3 213.2 Up 02:11:39 - 02:41:39 -771
Oliver 02:26:56 -15.0 AT Up 42.2 217.8 Up 02:11:56 - 02:41:56 -780
Anarchist Mountain Observatory 02:26:57 -15.1 AT Up 42.3 218.1 Up 02:11:57 - 02:41:57 -799
Tonasket 02:26:57 -15.1 AT Up 42.6 218.2 Up 02:11:57 - 02:41:57 -826
Okanogan 02:26:57 -14.9 AT Up 42.9 218.2 Up 02:11:57 - 02:41:57 -853
Brewster 02:26:56 -14.7 AT Up 43.2 218.1 Up 02:11:56 - 02:41:56 -874
Manson/Chelan 02:26:54 -14.4 AT Up 43.5 217.8 Up 02:11:54 - 02:41:54 -887
Wenatchee 02:26:54 -14.3 AT Up 44.0 217.8 Up 02:11:54 - 02:41:54 -927
Ellensburg 02:26:53 -14.0 AT Up 44.4 217.8 Up 02:11:53 - 02:41:53 -961
Yakima 02:26:53 -14.0 AT Up 44.7 218.0 Up 02:11:53 - 02:41:53 -998
Toppenish/White Swan 02:26:54 -14.0 AT Up 44.8 218.4 Up 02:11:54 - 02:41:54 -1021
Pasco 02:27:00 -14.9 AT Up 44.3 220.1 Up 02:12:00 - 02:42:00 -1055
Goldendale 02:26:52 -13.6 AT Up 45.4 218.2 Up 02:11:52 - 02:41:52 -1064
The Dalles 02:26:50 -13.3 AT Up 45.8 217.8 Up 02:11:50 - 02:41:50 -1078
PNWRO 02:27:01 -15.0 AT Up 44.4 220.5 Up 02:12:01 - 02:42:01 -1082
Maupin 02:26:51 -13.3 AT Up 46.0 218.2 Up 02:11:51 - 02:41:51 -1119
Sisters 02:26:48 -12.8 AT Up 47.0 218.2 Up 02:11:48 - 02:41:48 -1192
Redmond 02:26:51 -13.1 AT Up 46.8 218.7 Up 02:11:51 - 02:41:51 -1202
Bend 02:26:50 -13.0 AT Up 47.0 218.7 Up 02:11:50 - 02:41:50 -1219
Oregon Observatory 02:26:49 -12.8 AT Up 47.2 218.6 Up 02:11:49 - 02:41:49 -1233
La Pine/Gilchrist 02:26:49 -12.8 AT Up 47.4 218.7 Up 02:11:49 - 02:41:49 -1251
North Lake 02:26:52 -13.1 AT Up 47.5 219.8 Up 02:11:52 - 02:41:52 -1304
Chiloquin 02:26:48 -12.3 AT Up 48.4 219.0 Up 02:11:48 - 02:41:48 -1349
Paisley 02:26:54 -13.3 AT Up 47.7 220.6 Up 02:11:54 - 02:41:54 -1363
Klamath Falls 02:26:48 -12.3 AT Up 48.7 219.3 Up 02:11:48 - 02:41:48 -1383
Lakeview 02:26:55 -13.3 AT Up 48.0 221.3 Up 02:11:55 - 02:41:55 -1416
Cedarville 02:26:56 -13.3 AT Up 48.4 222.0 Up 02:11:56 - 02:41:56 -1482
Fall River/Burney 02:26:50 -12.3 AT Up 49.4 220.7 Up 02:11:50 - 02:41:50 -1505
Susanville 02:26:54 -12.8 AT Up 49.5 222.2 Up 02:11:54 - 02:41:54 -1581
Greenville 02:26:52 -12.5 AT Up 49.8 222.0 Up 02:11:52 - 02:41:52 -1602
Gimple 02:26:53 -12.5 AT Up 49.8 222.1 Up 02:11:53 - 02:41:53 -1604
Quincy 02:26:53 -12.4 AT Up 50.0 222.2 Up 02:11:53 - 02:41:53 -1622
Portola 02:26:55 -12.8 AT Up 49.8 222.9 Up 02:11:55 - 02:41:55 -1643
Reno 02:26:58 -13.2 AT Up 49.7 224.0 Up 02:11:58 - 02:41:58 -1683
Carson City 02:26:58 -13.2 AT Up 49.9 224.3 Up 02:11:58 - 02:41:58 -1719
Gardnerville 02:26:59 -13.2 AT Up 50.1 224.6 Up 02:11:59 - 02:41:59 -1744
Yerington 02:27:02 -13.6 AT Up 49.7 225.3 Up 02:12:02 - 02:42:02 -1751
Hawthorne 02:27:04 -14.0 AT Up 49.7 226.4 Up 02:12:04 - 02:42:04 -1807
Lee Vining 02:27:02 -13.5 AT Up 50.4 226.3 Up 02:12:02 - 02:42:02 -1853
Dunrhomin 02:28:09 -24.7 Dark Up 40.2 240.1 Up 02:13:09 - 02:43:09 -1861
Tonopah 02:27:12 -15.0 AT Up 49.2 228.6 Up 02:12:12 - 02:42:12 -1882
Bishop 02:27:05 -13.9 AT Up 50.4 227.7 Up 02:12:05 - 02:42:05 -1928
Beatty 02:27:14 -15.2 AT Up 49.7 230.2 Up 02:12:14 - 02:42:14 -2008
Indian Springs 02:27:20 -16.0 AT Up 49.2 231.8 Up 02:12:20 - 02:42:20 -2062
CPSLO 02:26:52 -11.7 NT Up 53.1 226.7 Up 02:11:52 - 02:41:52 -2088
Henderson 02:27:23 -16.5 AT Up 49.1 233.1 Up 02:12:23 - 02:42:23 -2130
Patrick 02:27:30 -17.3 AT Up 48.7 235.0 Up 02:12:30 - 02:42:30 -2215
Laughlin/Bullhead City 02:27:26 -16.7 AT Up 49.3 234.4 Up 02:12:26 - 02:42:26 -2227
Kingman/Dolan Springs 02:27:29 -17.1 AT Up 48.9 235.0 Up 02:12:29 - 02:42:29 -2234
Mohave Valley 02:27:26 -16.6 AT Up 49.4 234.7 Up 02:12:26 - 02:42:26 -2255
Wildwood 02:27:04 -13.1 AT Up 52.6 230.6 Up 02:12:04 - 02:42:04 -2256
Lake Havasu City 02:27:27 -16.8 AT Up 49.5 235.4 Up 02:12:27 - 02:42:27 -2301
Idyllwild 02:27:15 -14.7 AT Up 51.6 233.3 Up 02:12:15 - 02:42:15 -2331
Parker 02:27:28 -16.7 AT Up 49.7 235.7 Up 02:12:28 - 02:42:28 -2338
Blythe 02:27:25 -16.4 AT Up 50.2 235.9 Up 02:12:25 - 02:42:25 -2386
Calipatria 02:27:20 -15.5 AT Up 51.1 235.3 Up 02:12:20 - 02:42:20 -2419
George/Scottsdale 02:27:41 -18.7 Dark Up 48.2 238.8 Up 02:12:41 - 02:42:41 -2428
Yuma 02:27:26 -16.2 AT Up 50.7 236.8 Up 02:12:26 - 02:42:26 -2482

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 602716, (2025/02/02 02:23UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 46.30  69
6Bet Ari       01:54:38.5 +20:48:26  2.6 14.79  34
PPM 144653     01:29:03.1 +07:17:38  6.4  0.24  23
602716         01:30:01.1 +07:15:50 16.1        23
Positions are for J2000

Event circumstances last updated at 2021/12/02 02:21:37 UT

Marc W. Buie, Southwest Research Institute

RECON