RECON: TNO occultation with 14WK510

Event between 14WK510 and star GA1060:01617610 with event index number of 1052836

Geocentric closest approach at 2021/02/02 07:03:08 UTC

J2000 position of star is 06:07:11.5 +17:14:40
Equinox of date position of star is 06:08:18.1 +17:14:27
Stellar brightness G=15.7, use SENSEUP=128
Star is 100 degrees from the moon. Moon is 77% illuminated.
TNO apparent brightness V=22.5

[RECON map]
TNO is 35.7 AU from the Sun and 34.9 AU from the Earth.
The TNO is moving 17.5 km/sec on the sky relative to the star, or, 2.5 arcsec/hr.
The 1-sigma error in the time of the event is 325 seconds.
The 1-sigma cross-track error in the shadow position is 2374 km.
The sky-plane scale is 25333.5 km/arcsec.

The TNO has an absolute magnitude Hv=6.9
Diameter=247.8 km assuming a 5% albedo -- 14.2 sec chord
Diameter=101.1 km assuming a 30% albedo -- 5.8 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 14WK510, (2021/02/02 07:03UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:18.8 +07:24:33  0.4 10.26 104
Alhena         06:38:55.8 +16:22:46  1.9  7.35  93
69 Ori         06:13:16.2 +16:07:25  4.7  1.61  99
PPM 121909     06:07:45.4 +16:49:30  8.4  0.44 100
PPM 121930     06:08:29.0 +17:28:59  8.6  0.24 100
14WK510        06:08:25.1 +17:14:26 15.7       100
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 2.8 sigma about the mid-time.
The median site spacing is 18.8 km RECON observability=1.0 and success probability=15.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 07:02:02 -54.0 Dark Up 50.8 223.3 Up 06:47:02 - 07:17:02 -499
Summerland 07:02:03 -53.9 Dark Up 51.0 222.9 Up 06:47:03 - 07:17:03 -510
Penticton 07:02:02 -54.3 Dark Up 51.1 223.4 Up 06:47:02 - 07:17:02 -532
Okanagan Falls 07:02:01 -54.4 Dark Up 51.3 223.5 Up 06:47:01 - 07:17:01 -548
Oliver 07:02:00 -54.6 Dark Up 51.4 223.7 Up 06:47:00 - 07:17:00 -562
Anarchist Mountain Observatory 07:01:59 -54.8 Dark Up 51.4 224.1 Up 06:46:59 - 07:16:59 -572
Oroville 07:01:59 -54.8 Dark Up 51.5 224.1 Up 06:46:59 - 07:16:59 -580
Tonasket 07:01:58 -55.0 Dark Up 51.7 224.3 Up 06:46:58 - 07:16:58 -599
Okanogan 07:01:58 -55.3 Dark Up 52.0 224.4 Up 06:46:58 - 07:16:58 -631
Brewster 07:01:58 -55.4 Dark Up 52.3 224.3 Up 06:46:58 - 07:16:58 -658
Manson/Chelan 07:01:59 -55.5 Dark Up 52.6 224.0 Up 06:46:59 - 07:16:59 -684
Entiat 07:01:58 -55.7 Dark Up 52.8 224.1 Up 06:46:58 - 07:16:58 -704
Wenatchee 07:01:58 -55.8 Dark Up 53.0 224.2 Up 06:46:58 - 07:16:58 -728
Ellensburg 07:01:58 -56.1 Dark Up 53.4 224.3 Up 06:46:58 - 07:16:58 -769
Pasco 07:01:50 -57.2 Dark Up 53.3 226.9 Up 06:46:50 - 07:16:50 -801
Yakima 07:01:56 -56.4 Dark Up 53.7 224.7 Up 06:46:56 - 07:16:56 -804
PNWRO 07:01:49 -57.5 Dark Up 53.3 227.5 Up 06:46:49 - 07:16:49 -817
Toppenish/White Swan 07:01:55 -56.7 Dark Up 53.8 225.1 Up 06:46:55 - 07:16:55 -819
George/Umatilla 07:01:50 -57.4 Dark Up 53.6 227.0 Up 06:46:50 - 07:16:50 -835
Goldendale 07:01:55 -57.0 Dark Up 54.4 225.1 Up 06:46:55 - 07:16:55 -877
The Dalles 07:01:55 -57.0 Dark Up 54.7 224.8 Up 06:46:55 - 07:16:55 -905
Maupin 07:01:54 -57.4 Dark Up 55.0 225.3 Up 06:46:54 - 07:16:54 -939
Niwot 07:00:40 -66.4 Dark Up 48.0 249.1 Up 06:45:40 - 07:15:40 -982
Madras/Culver 07:01:53 -57.8 Dark Up 55.4 225.8 Up 06:46:53 - 07:16:53 -989
SwRI 07:00:40 -66.5 Dark Up 48.1 249.2 Up 06:45:40 - 07:15:40 -994
Redmond 07:01:52 -58.1 Dark Up 55.7 226.1 Up 06:46:52 - 07:16:52 -1022
Sisters 07:01:54 -57.9 Dark Up 55.8 225.5 Up 06:46:54 - 07:16:54 -1029
Bend 07:01:52 -58.2 Dark Up 55.9 226.1 Up 06:46:52 - 07:16:52 -1044
Oregon Observatory 07:01:52 -58.3 Dark Up 56.1 226.1 Up 06:46:52 - 07:16:52 -1063
La Pine/Gilchrist 07:01:51 -58.4 Dark Up 56.2 226.3 Up 06:46:51 - 07:16:51 -1083
North Lake 07:01:48 -59.0 Dark Up 56.2 227.6 Up 06:46:48 - 07:16:48 -1108
Paisley 07:01:45 -59.6 Dark Up 56.4 228.7 Up 06:46:45 - 07:16:45 -1149
Lakeview 07:01:43 -60.1 Dark Up 56.6 229.5 Up 06:46:43 - 07:16:43 -1191
Chiloquin 07:01:50 -59.1 Dark Up 57.2 227.0 Up 06:46:50 - 07:16:50 -1192
Klamath Falls 07:01:48 -59.4 Dark Up 57.4 227.5 Up 06:46:48 - 07:16:48 -1221
Tulelake 07:01:47 -59.8 Dark Up 57.4 228.2 Up 06:46:47 - 07:16:47 -1239
Cedarville 07:01:40 -60.7 Dark Up 57.0 230.5 Up 06:46:40 - 07:16:40 -1247
Fall River/Burney 07:01:44 -60.5 Dark Up 58.0 229.4 Up 06:46:44 - 07:16:44 -1321
Susanville 07:01:39 -61.3 Dark Up 58.0 231.2 Up 06:46:39 - 07:16:39 -1361
Gimple 07:01:39 -61.4 Dark Up 58.3 231.3 Up 06:46:39 - 07:16:39 -1392
Greenville 07:01:40 -61.4 Dark Up 58.3 231.1 Up 06:46:40 - 07:16:40 -1394
Quincy 07:01:39 -61.6 Dark Up 58.4 231.4 Up 06:46:39 - 07:16:39 -1413
Portola 07:01:37 -61.9 Dark Up 58.2 232.2 Up 06:46:37 - 07:16:37 -1413
Reno 07:01:34 -62.4 Dark Up 58.0 233.4 Up 06:46:34 - 07:16:34 -1421
Carson City 07:01:33 -62.7 Dark Up 58.2 233.9 Up 06:46:33 - 07:16:33 -1454
Yerington 07:01:30 -63.1 Dark Up 57.9 235.0 Up 06:46:30 - 07:16:30 -1457
Gardnerville 07:01:32 -62.9 Dark Up 58.3 234.3 Up 06:46:32 - 07:16:32 -1476
Hawthorne 07:01:26 -63.8 Dark Up 57.8 236.3 Up 06:46:26 - 07:16:26 -1487
Tonopah 07:01:19 -64.8 Dark Up 57.2 238.7 Up 06:46:19 - 07:16:19 -1494
Lee Vining 07:01:26 -64.0 Dark Up 58.5 236.4 Up 06:46:26 - 07:16:26 -1552
Bishop 07:01:22 -64.8 Dark Up 58.3 238.2 Up 06:46:22 - 07:16:22 -1590
Beatty 07:01:13 -65.9 Dark Up 57.5 240.8 Up 06:46:13 - 07:16:13 -1591
Indian Springs 07:01:08 -66.7 Dark Up 56.9 242.5 Up 06:46:08 - 07:16:08 -1593
Henderson 07:01:03 -67.4 Dark Up 56.6 244.0 Up 06:46:03 - 07:16:03 -1624
Patrick 07:00:57 -68.5 Dark Up 56.1 246.1 Up 06:45:57 - 07:15:57 -1653
Lone Pine 07:01:18 -65.5 Dark Up 58.5 239.6 Up 06:46:18 - 07:16:18 -1654
DCO 07:00:54 -69.0 Dark Up 55.7 247.2 Up 06:45:54 - 07:15:54 -1662
Searchlight/Boulder City 07:01:02 -67.9 Dark Up 56.8 244.9 Up 06:46:02 - 07:16:02 -1677
Kingman/Dolan Springs 07:00:57 -68.6 Dark Up 56.3 246.2 Up 06:45:57 - 07:15:57 -1679
Laughlin/Bullhead City 07:00:59 -68.3 Dark Up 56.7 245.6 Up 06:45:59 - 07:15:59 -1696
Mohave Valley 07:00:59 -68.6 Dark Up 56.8 246.0 Up 06:45:59 - 07:15:59 -1722
Lake Havasu City 07:00:57 -69.0 Dark Up 56.8 246.9 Up 06:45:57 - 07:15:57 -1753
Parker 07:00:55 -69.3 Dark Up 56.9 247.4 Up 06:45:55 - 07:15:55 -1786
Blythe 07:00:56 -69.6 Dark Up 57.3 247.8 Up 06:45:56 - 07:15:56 -1845
CPSLO 07:01:26 -65.0 Dark Up 61.0 238.2 Up 06:46:26 - 07:16:26 -1847
Idyllwild 07:01:04 -68.4 Dark Up 58.9 245.4 Up 06:46:04 - 07:16:04 -1893
Wildwood 07:01:13 -67.1 Dark Up 60.1 242.6 Up 06:46:13 - 07:16:13 -1910
Calipatria 07:00:57 -69.5 Dark Up 58.2 247.6 Up 06:45:57 - 07:15:57 -1919
Yuma 07:00:53 -70.3 Dark Up 57.7 249.1 Up 06:45:53 - 07:15:53 -1935

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 14WK510, (2021/02/02 07:03UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 10.26 104
Alhena         06:37:42.8 +16:23:57  1.9  7.35  93
69 Ori         06:12:03.2 +16:07:49  4.7  1.61  99
PPM 121909     06:06:32.1 +16:49:43  8.4  0.44 100
PPM 121930     06:07:15.3 +17:29:13  8.6  0.24 100
14WK510        06:07:11.5 +17:14:40 15.7       100
Positions are for J2000

Event circumstances last updated at 2019/02/02 21:47:42 UT

Marc W. Buie, Southwest Research Institute

RECON