RECON: TNO occultation with 06SF369

Event between 06SF369 and star GA1000:00552187 with event index number of 231917

Geocentric closest approach at 2019/12/31 04:42:26 UTC

J2000 position of star is 04:52:30.2 +11:20:48
Equinox of date position of star is 04:53:31.6 +11:22:35
Stellar brightness G=15.9, use SENSEUP=128
Star is 96 degrees from the moon. Moon is 23% illuminated.
TNO apparent brightness V=23.0

[RECON map]
TNO is 42.7 AU from the Sun and 41.8 AU from the Earth.
The TNO is moving 23.1 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 214 seconds.
The 1-sigma cross-track error in the shadow position is 3524 km.
The sky-plane scale is 30313.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 11.9 sec chord
Diameter=112.4 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 06SF369, (2019/12/31 04:42UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:04.2 +16:32:53  0.8  6.54  93
Bellatrix      05:26:12.3 +06:21:58  1.6  9.48 102
6 Ori          04:55:53.6 +11:27:26  5.2  0.56  96
PPM 120326     04:52:19.1 +11:06:02  7.2  0.42  95
PPM 120346     04:53:31.9 +11:25:08  9.7  0.04  96
06SF369        04:53:36.8 +11:22:44 15.9        96
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 4.2 sigma about the mid-time.
The median site spacing is 23.2 km RECON observability=1.0 and success probability=12.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 04:43:50 -43.5 Dark Up 47.6 146.4 Up 04:28:50 - 04:58:50 2515
Oroville 04:43:51 -43.7 Dark Up 48.1 146.2 Up 04:28:51 - 04:58:51 2461
Tonasket 04:43:51 -43.8 Dark Up 48.3 146.0 Up 04:28:51 - 04:58:51 2440
Okanogan 04:43:51 -43.8 Dark Up 48.5 145.6 Up 04:28:51 - 04:58:51 2410
Brewster 04:43:52 -43.7 Dark Up 48.7 145.2 Up 04:28:52 - 04:58:52 2385
Manson/Chelan 04:43:53 -43.5 Dark Up 48.7 144.6 Up 04:28:53 - 04:58:53 2366
Entiat 04:43:54 -43.6 Dark Up 48.9 144.3 Up 04:28:54 - 04:58:54 2346
Wenatchee 04:43:54 -43.5 Dark Up 49.0 144.0 Up 04:28:54 - 04:58:54 2323
Ellensburg 04:43:55 -43.5 Dark Up 49.3 143.4 Up 04:28:55 - 04:58:55 2285
Yakima 04:43:56 -43.6 Dark Up 49.6 143.1 Up 04:28:56 - 04:58:56 2248
Toppenish/White Swan 04:43:55 -43.7 Dark Up 49.8 143.2 Up 04:28:55 - 04:58:55 2228
Pasco 04:43:52 -44.6 Dark Up 50.4 144.9 Up 04:28:52 - 04:58:52 2218
PNWRO 04:43:52 -44.8 Dark Up 50.7 145.0 Up 04:28:52 - 04:58:52 2195
George/Umatilla 04:43:53 -44.5 Dark Up 50.6 144.3 Up 04:28:53 - 04:58:53 2186
Goldendale 04:43:58 -43.6 Dark Up 50.1 142.2 Up 04:28:58 - 04:58:58 2177
The Dalles 04:43:59 -43.4 Dark Up 50.1 141.6 Up 04:28:59 - 04:58:59 2156
Maupin 04:43:59 -43.5 Dark Up 50.5 141.4 Up 04:28:59 - 04:58:59 2117
Madras/Culver 04:43:59 -43.6 Dark Up 50.9 140.9 Up 04:28:59 - 04:58:59 2065
Sisters 04:44:01 -43.3 Dark Up 51.0 140.0 Up 04:29:01 - 04:59:01 2034
Redmond 04:44:00 -43.6 Dark Up 51.2 140.6 Up 04:29:00 - 04:59:00 2032
Bend 04:44:01 -43.6 Dark Up 51.3 140.2 Up 04:29:01 - 04:59:01 2011
Oregon Observatory 04:44:01 -43.5 Dark Up 51.3 139.9 Up 04:29:01 - 04:59:01 1995
La Pine/Gilchrist 04:44:02 -43.5 Dark Up 51.5 139.7 Up 04:29:02 - 04:59:02 1975
North Lake 04:44:00 -44.0 Dark Up 52.1 140.1 Up 04:29:00 - 04:59:00 1934
Paisley 04:43:59 -44.3 Dark Up 52.7 140.2 Up 04:28:59 - 04:58:59 1881
Chiloquin 04:44:04 -43.4 Dark Up 52.1 138.2 Up 04:29:04 - 04:59:04 1869
Klamath Falls 04:44:04 -43.5 Dark Up 52.4 138.1 Up 04:29:04 - 04:59:04 1836
Lakeview 04:43:59 -44.5 Dark Up 53.1 140.0 Up 04:28:59 - 04:58:59 1833
Tulelake 04:44:03 -43.8 Dark Up 52.8 138.2 Up 04:29:03 - 04:59:03 1810
Cedarville 04:43:59 -44.8 Dark Up 53.7 139.7 Up 04:28:59 - 04:58:59 1769
Fall River/Burney 04:44:04 -43.9 Dark Up 53.5 137.5 Up 04:29:04 - 04:59:04 1722
Niwot 04:43:08 -56.0 Dark Down 60.3 163.6 Up 04:28:08 - 04:58:08 1673
Susanville 04:44:02 -44.6 Dark Up 54.3 138.0 Up 04:29:02 - 04:59:02 1660
Greenville 04:44:03 -44.4 Dark Up 54.4 137.3 Up 04:29:03 - 04:59:03 1633
Gimple 04:44:03 -44.4 Dark Up 54.4 137.5 Up 04:29:03 - 04:59:03 1633
Quincy 04:44:03 -44.4 Dark Up 54.5 137.2 Up 04:29:03 - 04:59:03 1613
Portola 04:44:02 -44.8 Dark Up 54.9 137.7 Up 04:29:02 - 04:59:02 1601
Reno 04:44:00 -45.3 Dark Up 55.4 138.4 Up 04:29:00 - 04:59:00 1575
Carson City 04:44:00 -45.3 Dark Up 55.7 138.1 Up 04:29:00 - 04:59:00 1539
Yerington 04:43:58 -45.9 Dark Up 56.2 138.8 Up 04:28:58 - 04:58:58 1520
Gardnerville 04:44:00 -45.4 Dark Up 55.9 137.9 Up 04:29:00 - 04:59:00 1515
Hawthorne 04:43:56 -46.3 Dark Up 56.8 139.2 Up 04:28:56 - 04:58:56 1475
Tonopah 04:43:52 -47.4 Dark Up 57.8 140.9 Up 04:28:52 - 04:58:52 1430
Lee Vining 04:43:59 -46.0 Dark Up 56.9 137.8 Up 04:28:59 - 04:58:59 1418
Bishop 04:43:56 -46.6 Dark Up 57.8 138.3 Up 04:28:56 - 04:58:56 1358
Beatty 04:43:51 -47.9 Dark Up 59.0 140.4 Up 04:28:51 - 04:58:51 1314
Indian Springs 04:43:47 -48.8 Dark Up 59.7 141.8 Up 04:28:47 - 04:58:47 1283
Lone Pine 04:43:56 -46.9 Dark Up 58.5 138.0 Up 04:28:56 - 04:58:56 1282
Henderson 04:43:45 -49.4 Dark Up 60.5 142.4 Up 04:28:45 - 04:58:45 1230
Searchlight/Boulder City 04:43:45 -49.5 Dark Up 61.0 141.9 Up 04:28:45 - 04:58:45 1172
Patrick 04:43:41 -50.4 Dark Up 61.6 143.7 Up 04:28:41 - 04:58:41 1169
CPSLO 04:44:06 -44.9 Dark Up 58.0 132.7 Up 04:29:06 - 04:59:06 1148
Kingman/Dolan Springs 04:43:42 -50.2 Dark Up 61.6 143.1 Up 04:28:42 - 04:58:42 1146
Laughlin/Bullhead City 04:43:44 -49.8 Dark Up 61.4 142.1 Up 04:28:44 - 04:58:44 1142
DCO 04:43:39 -51.0 Dark Up 62.1 144.6 Up 04:28:39 - 04:58:39 1140
Mohave Valley 04:43:44 -49.9 Dark Up 61.6 141.8 Up 04:28:44 - 04:58:44 1114
Lake Havasu City 04:43:43 -50.1 Dark Up 62.1 141.8 Up 04:28:43 - 04:58:43 1074
Parker 04:43:44 -50.1 Dark Up 62.4 141.5 Up 04:28:44 - 04:58:44 1038
Wildwood 04:43:59 -46.6 Dark Up 60.0 134.3 Up 04:28:59 - 04:58:59 1025
Idyllwild 04:43:52 -48.2 Dark Up 61.4 136.8 Up 04:28:52 - 04:58:52 990
Blythe 04:43:44 -49.9 Dark Up 62.6 140.3 Up 04:28:44 - 04:58:44 983
Calipatria 04:43:48 -49.2 Dark Up 62.5 138.0 Up 04:28:48 - 04:58:48 930
Yuma 04:43:45 -49.9 Dark Up 63.3 139.1 Up 04:28:45 - 04:58:45 887

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 06SF369, (2019/12/31 04:42UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  6.54  93
Bellatrix      05:25:07.8 +06:20:58  1.6  9.48 102
6 Ori          04:54:46.9 +11:25:35  5.2  0.56  96
PPM 120326     04:51:12.6 +11:04:04  7.2  0.42  95
PPM 120346     04:52:25.2 +11:23:13  9.7  0.04  96
06SF369        04:52:30.2 +11:20:48 15.9        96
Positions are for J2000

Event circumstances last updated at 2018/06/05 18:22:37 UT

Marc W. Buie, Southwest Research Institute

RECON