RECON: TNO occultation with 341275

Event between (341275) 07RG283 and star GA1320:03429083 with event index number of 1046629

Geocentric closest approach at 2021/01/28 03:16:59 UTC

J2000 position of star is 05:59:09.6 +43:44:17
Equinox of date position of star is 06:00:32.8 +43:44:17
Stellar brightness G=12.1, use SENSEUP=16
Star is 34 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=20.6

[RECON map]
TNO is 15.3 AU from the Sun and 14.6 AU from the Earth.
The TNO is moving 18.6 km/sec on the sky relative to the star, or, 6.3 arcsec/hr.
The 1-sigma error in the time of the event is 416 seconds.
The 1-sigma cross-track error in the shadow position is 4719 km.
The sky-plane scale is 10594.0 km/arcsec.

The TNO has an absolute magnitude Hv=8.6
Diameter=114.8 km assuming a 5% albedo -- 6.2 sec chord
Diameter=46.9 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 341275, (2021/01/28 03:17UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:36.2 +27:58:25  1.1 26.43   8
34Bet Aur      06:01:04.5 +44:56:50  1.9  1.21  35
38 Aur         06:04:49.1 +42:54:31  6.1  1.12  33
PPM 048653     06:02:41.9 +43:40:30  8.3  0.37  34
PPM 048622     06:01:19.9 +43:59:07  9.6  0.27  34
PPM 048607     06:00:05.3 +43:30:16 10.7  0.26  34
341275         06:00:41.4 +43:44:17 12.1        34
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 2.2 sigma about the mid-time.
The median site spacing is 15.6 km RECON observability=1.0 and success probability=9.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 03:18:08 -24.4 Dark Up 67.2 93.0 Up 03:03:08 - 03:33:08 -312
Kelowna 03:18:08 -24.6 Dark Up 67.4 93.5 Up 03:03:08 - 03:33:08 -325
Penticton 03:18:08 -24.5 Dark Up 67.3 92.4 Up 03:03:08 - 03:33:08 -347
Okanagan Falls 03:18:08 -24.5 Dark Up 67.3 92.0 Up 03:03:08 - 03:33:08 -363
Oliver 03:18:08 -24.5 Dark Up 67.3 91.6 Up 03:03:08 - 03:33:08 -378
Anarchist Mountain Observatory 03:18:08 -24.6 Dark Up 67.5 91.3 Up 03:03:08 - 03:33:08 -401
Oroville 03:18:08 -24.6 Dark Up 67.4 91.1 Up 03:03:08 - 03:33:08 -405
Tonasket 03:18:08 -24.6 Dark Up 67.4 90.5 Up 03:03:08 - 03:33:08 -427
Okanogan 03:18:08 -24.5 Dark Up 67.3 89.6 Up 03:03:08 - 03:33:08 -455
Yakima 03:18:29 -23.9 Dark Up 66.6 84.9 Up 03:03:29 - 03:33:29 -474
Brewster 03:18:08 -24.4 Dark Up 67.2 88.8 Up 03:03:08 - 03:33:08 -475
Manson/Chelan 03:18:08 -24.1 Dark Up 66.9 88.1 Up 03:03:08 - 03:33:08 -486
Toppenish/White Swan 03:18:29 -24.0 Dark Up 66.7 84.5 Up 03:03:29 - 03:33:29 -498
The Dalles 03:18:35 -23.4 Dark Up 66.1 82.3 Up 03:03:35 - 03:33:35 -504
Entiat 03:18:08 -24.1 Dark Up 66.9 87.5 Up 03:03:08 - 03:33:08 -508
Goldendale 03:18:33 -23.7 Dark Up 66.4 83.0 Up 03:03:33 - 03:33:33 -510
Wenatchee 03:18:08 -24.0 Dark Up 66.8 86.9 Up 03:03:08 - 03:33:08 -532
Maupin 03:18:36 -23.5 Dark Up 66.1 81.4 Up 03:03:36 - 03:33:36 -538
Sisters 03:18:42 -23.1 Dark Up 65.7 79.2 Up 03:03:42 - 03:33:42 -567
Ellensburg 03:18:08 -23.8 Dark Up 66.6 85.8 Up 03:03:08 - 03:33:08 -572
Madras/Culver 03:18:39 -23.4 Dark Up 66.0 80.2 Up 03:03:39 - 03:33:39 -572
George/Umatilla 03:18:29 -24.7 Dark Up 67.4 84.0 Up 03:03:29 - 03:33:29 -589
Redmond 03:18:41 -23.4 Dark Up 65.9 79.4 Up 03:03:41 - 03:33:41 -593
Bend 03:18:42 -23.3 Dark Up 65.8 78.8 Up 03:03:42 - 03:33:42 -599
Oregon Observatory 03:18:43 -23.2 Dark Up 65.7 78.4 Up 03:03:43 - 03:33:43 -602
La Pine/Gilchrist 03:18:44 -23.1 Dark Up 65.6 77.9 Up 03:03:44 - 03:33:44 -613
Chiloquin 03:18:50 -22.8 Dark Up 65.1 75.5 Up 03:03:50 - 03:33:50 -666
North Lake 03:18:45 -23.5 Dark Up 65.9 77.2 Up 03:03:45 - 03:33:45 -678
Pasco 03:18:08 -24.8 Dark Up 67.6 84.8 Up 03:03:08 - 03:33:08 -682
Klamath Falls 03:18:52 -22.8 Dark Up 65.1 74.8 Up 03:03:52 - 03:33:52 -694
PNWRO 03:18:08 -24.9 Dark Up 67.7 84.4 Up 03:03:08 - 03:33:08 -714
Tulelake 03:18:52 -23.0 Dark Up 65.2 74.3 Up 03:03:52 - 03:33:52 -731
Paisley 03:18:47 -23.8 Dark Up 66.1 76.1 Up 03:03:47 - 03:33:47 -738
Lakeview 03:18:49 -23.9 Dark Up 66.1 75.1 Up 03:03:49 - 03:33:49 -785
Fall River/Burney 03:18:56 -23.0 Dark Up 65.0 72.4 Up 03:03:56 - 03:33:56 -798
Cedarville 03:18:51 -24.0 Dark Up 66.0 73.7 Up 03:03:51 - 03:33:51 -841
Susanville 03:18:57 -23.6 Dark Up 65.4 71.2 Up 03:03:57 - 03:33:57 -888
Greenville 03:18:59 -23.3 Dark Up 65.1 70.7 Up 03:03:59 - 03:33:59 -889
Gimple 03:18:59 -23.4 Dark Up 65.1 70.7 Up 03:03:59 - 03:33:59 -894
Quincy 03:19:00 -23.3 Dark Up 65.0 70.2 Up 03:04:00 - 03:34:00 -903
Portola 03:19:00 -23.7 Dark Up 65.3 70.0 Up 03:04:00 - 03:34:00 -942
Reno 03:18:59 -24.1 Dark Up 65.7 69.5 Up 03:03:59 - 03:33:59 -1002
Carson City 03:19:01 -24.1 Dark Up 65.6 68.8 Up 03:04:01 - 03:34:01 -1029
Gardnerville 03:19:02 -24.2 Dark Up 65.5 68.3 Up 03:04:02 - 03:34:02 -1049
Yerington 03:19:00 -24.6 Dark Up 66.0 68.4 Up 03:04:00 - 03:34:00 -1084
Hawthorne 03:19:01 -25.0 Dark Up 66.2 67.4 Up 03:04:01 - 03:34:01 -1151
Lee Vining 03:19:05 -24.6 Dark Up 65.6 66.2 Up 03:04:05 - 03:34:05 -1160
CPSLO 03:19:20 -23.2 Dark Up 63.4 61.5 Up 03:04:20 - 03:34:20 -1249
Bishop 03:19:05 -25.1 Dark Up 65.9 65.0 Up 03:04:05 - 03:34:05 -1250
Tonopah 03:18:59 -26.1 Dark Up 67.0 66.2 Up 03:03:59 - 03:33:59 -1276
Lone Pine 03:19:08 -25.3 Dark Up 65.8 63.4 Up 03:04:08 - 03:34:08 -1328
Beatty 03:19:03 -26.4 Dark Up 66.9 63.7 Up 03:04:03 - 03:34:03 -1391
Wildwood 03:19:20 -24.7 Dark Up 64.3 58.8 Up 03:04:20 - 03:34:20 -1476
Indian Springs 03:19:01 -27.2 Dark Up 67.5 62.7 Up 03:04:01 - 03:34:01 -1485
Henderson 03:19:01 -27.7 Dark Up 67.7 61.4 Up 03:04:01 - 03:34:01 -1570
Searchlight/Boulder City 03:19:03 -27.8 Dark Up 67.5 60.1 Up 03:04:03 - 03:34:03 -1618
Idyllwild 03:19:16 -26.2 Dark Up 65.4 57.4 Up 03:04:16 - 03:34:16 -1631
Laughlin/Bullhead City 03:19:04 -28.0 Dark Up 67.6 59.3 Up 03:04:04 - 03:34:04 -1663
Mohave Valley 03:19:05 -28.0 Dark Up 67.5 58.8 Up 03:04:05 - 03:34:05 -1685
Patrick 03:19:01 -28.6 Dark Up 68.2 59.5 Up 03:04:01 - 03:34:01 -1691
Kingman/Dolan Springs 03:19:02 -28.5 Dark Up 68.0 59.2 Up 03:04:02 - 03:34:02 -1696
Lake Havasu City 03:19:06 -28.2 Dark Up 67.4 57.8 Up 03:04:06 - 03:34:06 -1732
Calipatria 03:19:15 -27.2 Dark Up 65.9 55.8 Up 03:04:15 - 03:34:15 -1757
DCO 03:19:00 -29.2 Dark Up 68.6 58.5 Up 03:04:00 - 03:34:00 -1760
Parker 03:19:07 -28.2 Dark Up 67.3 57.1 Up 03:04:07 - 03:34:07 -1761
Blythe 03:19:10 -28.0 Dark Up 66.8 56.2 Up 03:04:10 - 03:34:10 -1781
Niwot 03:18:08 -35.2 Dark Up 76.3 68.8 Up 03:03:08 - 03:33:08 -1846
SwRI 03:18:08 -35.2 Dark Up 76.2 68.5 Up 03:03:08 - 03:33:08 -1850
Yuma 03:19:14 -27.9 Dark Up 66.2 54.5 Up 03:04:14 - 03:34:14 -1850

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, (2021/01/28 03:17UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1 26.43   8
34Bet Aur      05:59:31.6 +44:56:51  1.9  1.21  35
38 Aur         06:03:18.2 +42:54:39  6.1  1.12  33
PPM 048653     06:01:10.2 +43:40:33  8.3  0.37  34
PPM 048622     05:59:47.9 +43:59:08  9.6  0.27  34
PPM 048607     05:58:33.8 +43:30:15 10.7  0.26  34
341275         05:59:09.6 +43:44:17 12.1        34
Positions are for J2000

Event circumstances last updated at 2019/02/02 21:45:47 UT

Marc W. Buie, Southwest Research Institute

RECON