RECON: TNO occultation with 341275

Event between (341275) 07RG283 and star GA1340:03600450 with event index number of 1004232

Geocentric closest approach at 2020/11/05 06:35:07 UTC

J2000 position of star is 06:19:47.6 +44:04:01
Equinox of date position of star is 06:21:10.2 +44:03:27
Stellar brightness G=14.8, use SENSEUP=128
Star is 19 degrees from the moon. Moon is 81% illuminated.
TNO apparent brightness V=20.7

[RECON map]
TNO is 15.4 AU from the Sun and 14.8 AU from the Earth.
The TNO is moving 12.5 km/sec on the sky relative to the star, or, 4.2 arcsec/hr.
The 1-sigma error in the time of the event is 692 seconds.
The 1-sigma cross-track error in the shadow position is 5149 km.
The sky-plane scale is 10702.7 km/arcsec.

The TNO has an absolute magnitude Hv=8.6
Diameter=114.8 km assuming a 5% albedo -- 9.2 sec chord
Diameter=46.9 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 341275, (2020/11/05 06:35UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:35.4 +27:58:27  1.1 23.45  19
34Bet Aur      06:01:03.5 +44:56:50  1.9  3.72  21
38 Aur         06:04:48.2 +42:54:32  6.1  3.21  19
PPM 048989     06:23:32.2 +44:02:49  6.9  0.40  19
PPM 048973     06:21:59.9 +43:51:31 11.3  0.23  19
341275         06:21:18.6 +44:03:24 14.8        19
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 1.3 sigma about the mid-time.
The median site spacing is 22.1 km RECON observability=1.0 and success probability=10.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 06:41:13 -53.8 Dark Up 44.0 69.2 Up 06:26:13 - 06:56:13 1688
Kelowna 06:41:12 -53.8 Dark Up 44.2 69.4 Up 06:26:12 - 06:56:12 1681
Penticton 06:41:13 -54.1 Dark Up 44.0 69.0 Up 06:26:13 - 06:56:13 1650
Okanagan Falls 06:41:14 -54.3 Dark Up 43.9 68.8 Up 06:26:14 - 06:56:14 1632
Oliver 06:41:15 -54.4 Dark Up 43.9 68.7 Up 06:26:15 - 06:56:15 1615
Anarchist Mountain Observatory 06:41:14 -54.7 Dark Up 43.9 68.7 Up 06:26:14 - 06:56:14 1592
Oroville 06:41:15 -54.7 Dark Up 43.8 68.6 Up 06:26:15 - 06:56:15 1587
Tonasket 06:41:15 -54.9 Dark Up 43.8 68.3 Up 06:26:15 - 06:56:15 1563
Okanogan 06:41:17 -55.2 Dark Up 43.5 68.0 Up 06:26:17 - 06:56:17 1534
Brewster 06:41:18 -55.4 Dark Up 43.3 67.6 Up 06:26:18 - 06:56:18 1514
Manson/Chelan 06:41:21 -55.4 Dark Up 43.0 67.3 Up 06:26:21 - 06:56:21 1505
Entiat 06:41:22 -55.6 Dark Up 42.9 67.1 Up 06:26:22 - 06:56:22 1485
Wenatchee 06:41:23 -55.8 Dark Up 42.7 66.8 Up 06:26:23 - 06:56:23 1463
Ellensburg 06:41:24 -56.1 Dark Up 42.4 66.3 Up 06:26:24 - 06:56:24 1429
Yakima 06:41:26 -56.5 Dark Up 42.3 66.0 Up 06:26:26 - 06:56:26 1390
Toppenish/White Swan 06:41:26 -56.7 Dark Up 42.3 65.9 Up 06:26:26 - 06:56:26 1362
Goldendale 06:41:29 -57.0 Dark Up 41.8 65.2 Up 06:26:29 - 06:56:29 1322
The Dalles 06:41:31 -57.1 Dark Up 41.5 64.9 Up 06:26:31 - 06:56:31 1312
Pasco 06:41:21 -57.2 Dark Up 43.0 66.4 Up 06:26:21 - 06:56:21 1307
George/Umatilla 06:41:23 -57.4 Dark Up 42.8 66.0 Up 06:26:23 - 06:56:23 1281
PNWRO 06:41:21 -57.5 Dark Up 43.1 66.3 Up 06:26:21 - 06:56:21 1275
Maupin 06:41:32 -57.5 Dark Up 41.4 64.6 Up 06:26:32 - 06:56:32 1267
Madras/Culver 06:41:33 -58.0 Dark Up 41.1 64.2 Up 06:26:33 - 06:56:33 1214
Sisters 06:41:36 -58.1 Dark Up 40.7 63.7 Up 06:26:36 - 06:56:36 1197
Redmond 06:41:34 -58.2 Dark Up 40.9 63.9 Up 06:26:34 - 06:56:34 1180
Bend 06:41:36 -58.4 Dark Up 40.7 63.6 Up 06:26:36 - 06:56:36 1164
Oregon Observatory 06:41:36 -58.5 Dark Up 40.6 63.5 Up 06:26:36 - 06:56:36 1152
La Pine/Gilchrist 06:41:37 -58.6 Dark Up 40.4 63.3 Up 06:26:37 - 06:56:37 1134
North Lake 06:41:36 -59.2 Dark Up 40.6 63.2 Up 06:26:36 - 06:56:36 1069
Chiloquin 06:41:41 -59.4 Dark Up 39.7 62.3 Up 06:26:41 - 06:56:41 1037
Paisley 06:41:36 -59.8 Dark Up 40.6 62.9 Up 06:26:36 - 06:56:36 1001
Klamath Falls 06:41:42 -59.7 Dark Up 39.6 62.1 Up 06:26:42 - 06:56:42 1000
Tulelake 06:41:41 -60.1 Dark Up 39.7 62.0 Up 06:26:41 - 06:56:41 962
Lakeview 06:41:36 -60.3 Dark Up 40.5 62.6 Up 06:26:36 - 06:56:36 943
Cedarville 06:41:37 -61.0 Dark Up 40.3 62.2 Up 06:26:37 - 06:56:37 871
Fall River/Burney 06:41:43 -60.9 Dark Up 39.3 61.4 Up 06:26:43 - 06:56:43 869
Susanville 06:41:41 -61.7 Dark Up 39.5 61.2 Up 06:26:41 - 06:56:41 778
Greenville 06:41:43 -61.8 Dark Up 39.2 60.9 Up 06:26:43 - 06:56:43 762
Gimple 06:41:43 -61.8 Dark Up 39.2 60.9 Up 06:26:43 - 06:56:43 758
Quincy 06:41:44 -62.0 Dark Up 39.1 60.8 Up 06:26:44 - 06:56:44 742
Portola 06:41:42 -62.3 Dark Up 39.3 60.8 Up 06:26:42 - 06:56:42 711
Reno 06:41:40 -62.8 Dark Up 39.6 60.8 Up 06:26:40 - 06:56:40 660
Carson City 06:41:41 -63.1 Dark Up 39.5 60.6 Up 06:26:41 - 06:56:41 623
Gardnerville 06:41:41 -63.3 Dark Up 39.4 60.4 Up 06:26:41 - 06:56:41 597
Yerington 06:41:38 -63.5 Dark Up 39.8 60.6 Up 06:26:38 - 06:56:38 580
Hawthorne 06:41:37 -64.1 Dark Up 39.9 60.5 Up 06:26:37 - 06:56:37 514
Lee Vining 06:41:40 -64.4 Dark Up 39.3 59.9 Up 06:26:40 - 06:56:40 476
Tonopah 06:41:32 -65.1 Dark Up 40.7 60.5 Up 06:26:32 - 06:56:32 416
Bishop 06:41:38 -65.2 Dark Up 39.5 59.7 Up 06:26:38 - 06:56:38 389
Lone Pine 06:41:38 -66.0 Dark Up 39.4 59.2 Up 06:26:38 - 06:56:38 301
Beatty 06:41:32 -66.3 Dark Up 40.4 59.8 Up 06:26:32 - 06:56:32 283
Niwot 06:40:32 -65.7 Dark Up 49.7 65.6 Up 06:25:32 - 06:55:32 276
CPSLO 06:41:51 -65.8 Dark Up 36.9 57.7 Up 06:26:51 - 06:56:51 273
Indian Springs 06:41:27 -67.0 Dark Up 41.0 59.8 Up 06:26:27 - 06:56:27 212
Henderson 06:41:25 -67.7 Dark Up 41.2 59.6 Up 06:26:25 - 06:56:25 134
Searchlight/Boulder City 06:41:25 -68.3 Dark Up 40.9 59.2 Up 06:26:25 - 06:56:25 74
Wildwood 06:41:44 -67.8 Dark Up 37.7 57.4 Up 06:26:44 - 06:56:44 72
Patrick 06:41:20 -68.7 Dark Up 41.6 59.3 Up 06:26:20 - 06:56:20 33
Laughlin/Bullhead City 06:41:24 -68.6 Dark Up 41.0 59.0 Up 06:26:24 - 06:56:24 32
Kingman/Dolan Springs 06:41:21 -68.8 Dark Up 41.4 59.1 Up 06:26:21 - 06:56:21 17
Mohave Valley 06:41:24 -68.9 Dark Up 40.9 58.8 Up 06:26:24 - 06:56:24 4
DCO 06:41:17 -69.2 Dark Up 42.0 59.3 Up 06:26:17 - 06:56:17 -22
Idyllwild 06:41:35 -69.0 Dark Up 38.8 57.6 Up 06:26:35 - 06:56:35 -35
Lake Havasu City 06:41:23 -69.3 Dark Up 40.8 58.6 Up 06:26:23 - 06:56:23 -45
Parker 06:41:24 -69.7 Dark Up 40.7 58.3 Up 06:26:24 - 06:56:24 -81
Blythe 06:41:26 -70.0 Dark Up 40.2 57.9 Up 06:26:26 - 06:56:26 -123
Calipatria 06:41:31 -70.0 Dark Up 39.3 57.4 Up 06:26:31 - 06:56:31 -140
Yuma 06:41:27 -70.8 Dark Up 39.7 57.2 Up 06:26:27 - 06:56:27 -215

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 341275, (2020/11/05 06:35UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1 23.45  19
34Bet Aur      05:59:31.6 +44:56:51  1.9  3.72  21
38 Aur         06:03:18.2 +42:54:39  6.1  3.21  19
PPM 048989     06:22:01.3 +44:03:30  6.9  0.40  19
PPM 048973     06:20:29.1 +43:52:10 11.3  0.23  19
341275         06:19:47.6 +44:04:01 14.8        19
Positions are for J2000

Event circumstances last updated at 2018/12/02 21:53:33 UT

Marc W. Buie, Southwest Research Institute

RECON