RECON: TNO occultation with 07TG422

Event between 07TG422 and star UC4-498-009016 with event index number of 223158

Geocentric closest approach at 2019/11/27 12:06:27 UTC

J2000 position of star is 04:48:42.0 +09:31:33
Equinox of date position of star is 04:49:41.0 +09:33:22
Stellar brightness R=16.0, use SENSEUP=128
Star is 168 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 38.3 AU from the Sun and 37.4 AU from the Earth.
The TNO is moving 23.8 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 557 seconds.
The 1-sigma cross-track error in the shadow position is 5440 km.
The sky-plane scale is 27089.5 km/arcsec.

The TNO has an absolute magnitude Hv=6.2
Diameter=342.0 km assuming a 5% albedo -- 14.4 sec chord
Diameter=139.6 km assuming a 30% albedo -- 5.9 sec chord
Dynamical classification is CENTAURS
 
 
 
 
 
 

Star training set for 07TG422, (2019/11/27 12:06UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:03.9 +16:32:52  0.8  7.64 173
Bellatrix      05:26:12.0 +06:21:58  1.6  9.56 164
2Pi 2Ori       04:51:41.9 +08:55:58  4.4  0.78 168
PPM 148025     04:51:01.6 +09:31:21  8.4  0.31 168
PPM 148005     04:49:53.0 +09:42:29 10.0  0.15 169
07TG422        04:49:47.5 +09:33:34 16.0       169
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 1.6 sigma about the mid-time.
The median site spacing is 22.9 km RECON observability=1.0 and success probability=7.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 12:03:47 -32.3 Dark Down 29.5 248.9 Low 11:48:47 - 12:18:47 -771
Tonasket 12:03:46 -32.3 Dark Down 29.6 249.1 Low 11:48:46 - 12:18:46 -791
Okanogan 12:03:46 -32.4 Dark Down 29.8 249.1 Low 11:48:46 - 12:18:46 -821
Brewster 12:03:45 -32.6 Dark Down 30.0 249.1 Up 11:48:45 - 12:18:45 -846
Manson/Chelan 12:03:45 -32.8 Dark Down 30.3 248.8 Up 11:48:45 - 12:18:45 -866
Entiat 12:03:45 -32.9 Dark Down 30.4 248.9 Up 11:48:45 - 12:18:45 -886
Wenatchee 12:03:44 -33.0 Dark Down 30.6 249.0 Up 11:48:44 - 12:18:44 -909
Ellensburg 12:03:44 -33.2 Dark Down 30.9 249.0 Up 11:48:44 - 12:18:44 -946
Yakima 12:03:43 -33.2 Dark Down 31.0 249.2 Up 11:48:43 - 12:18:43 -983
Toppenish/White Swan 12:03:42 -33.1 Dark Down 31.0 249.5 Up 11:48:42 - 12:18:42 -1001
Pasco 12:03:40 -32.3 Dark Down 30.2 250.6 Up 11:48:40 - 12:18:40 -1003
PNWRO 12:03:38 -32.1 Dark Down 30.2 251.0 Up 11:48:38 - 12:18:38 -1024
George/Umatilla 12:03:39 -32.4 Dark Down 30.5 250.6 Up 11:48:39 - 12:18:39 -1035
Goldendale 12:03:42 -33.4 Dark Down 31.5 249.4 Up 11:48:42 - 12:18:42 -1053
The Dalles 12:03:42 -33.7 Dark Down 31.8 249.2 Up 11:48:42 - 12:18:42 -1075
Maupin 12:03:40 -33.7 Dark Down 31.9 249.6 Up 11:48:40 - 12:18:40 -1112
Madras/Culver 12:03:40 -33.7 Dark Down 32.1 249.8 Up 11:48:40 - 12:18:40 -1162
Redmond 12:03:39 -33.8 Dark Down 32.3 250.0 Up 11:48:39 - 12:18:39 -1195
Sisters 12:03:40 -34.1 Dark Down 32.5 249.6 Up 11:48:40 - 12:18:40 -1196
Bend 12:03:39 -33.9 Dark Down 32.4 250.0 Up 11:48:39 - 12:18:39 -1216
Oregon Observatory 12:03:38 -34.0 Dark Down 32.6 250.0 Up 11:48:38 - 12:18:38 -1233
La Pine/Gilchrist 12:03:38 -34.1 Dark Down 32.7 250.1 Up 11:48:38 - 12:18:38 -1252
North Lake 12:03:36 -33.6 Dark Down 32.4 250.8 Up 11:48:36 - 12:18:36 -1288
Paisley 12:03:34 -33.4 Dark Down 32.4 251.5 Up 11:48:34 - 12:18:34 -1337
Chiloquin 12:03:36 -34.4 Dark Down 33.3 250.4 Up 11:48:36 - 12:18:36 -1357
Lakeview 12:03:33 -33.3 Dark Down 32.4 251.9 Up 11:48:33 - 12:18:33 -1383
Klamath Falls 12:03:36 -34.3 Dark Down 33.4 250.7 Up 11:48:36 - 12:18:36 -1389
Tulelake 12:03:34 -34.1 Dark Down 33.3 251.1 Up 11:48:34 - 12:18:34 -1412
Cedarville 12:03:31 -33.1 Dark Down 32.5 252.4 Up 11:48:31 - 12:18:31 -1443
Niwot 12:03:02 -21.8 Dark Down 21.7 264.1 Low 11:48:02 - 12:18:02 -1448
Fall River/Burney 12:03:32 -34.1 Dark Down 33.5 251.8 Up 11:48:32 - 12:18:32 -1497
Susanville 12:03:29 -33.5 Dark Down 33.2 252.7 Up 11:48:29 - 12:18:29 -1552
Gimple 12:03:29 -33.7 Dark Down 33.4 252.7 Up 11:48:29 - 12:18:29 -1580
Greenville 12:03:29 -33.7 Dark Down 33.5 252.7 Up 11:48:29 - 12:18:29 -1581
Quincy 12:03:29 -33.7 Dark Down 33.5 252.8 Up 11:48:29 - 12:18:29 -1600
Portola 12:03:28 -33.4 Dark Down 33.2 253.3 Up 11:48:28 - 12:18:28 -1609
Reno 12:03:26 -32.9 Dark Down 32.8 253.9 Up 11:48:26 - 12:18:26 -1630
Carson City 12:03:25 -32.9 Dark Down 32.9 254.2 Up 11:48:25 - 12:18:25 -1664
Yerington 12:03:23 -32.4 Dark Down 32.5 254.8 Up 11:48:23 - 12:18:23 -1679
Gardnerville 12:03:25 -32.8 Dark Down 32.9 254.4 Up 11:48:25 - 12:18:25 -1688
Hawthorne 12:03:21 -31.9 Dark Down 32.2 255.4 Up 11:48:21 - 12:18:21 -1720
Tonopah 12:03:18 -30.8 Dark Down 31.2 256.8 Up 11:48:18 - 12:18:18 -1754
Lee Vining 12:03:21 -32.3 Dark Down 32.7 255.4 Up 11:48:21 - 12:18:21 -1778
Bishop 12:03:18 -31.7 Dark Down 32.3 256.3 Up 11:48:18 - 12:18:18 -1831
Beatty 12:03:14 -30.4 Dark Down 31.2 257.8 Up 11:48:14 - 12:18:14 -1864
Indian Springs 12:03:11 -29.5 Dark Down 30.4 258.7 Up 11:48:11 - 12:18:11 -1887
Lone Pine 12:03:16 -31.4 Dark Down 32.2 257.0 Up 11:48:16 - 12:18:16 -1903
Henderson 12:03:09 -28.9 Dark Down 29.9 259.5 Low 11:48:09 - 12:18:09 -1934
Patrick 12:03:06 -27.9 Dark Down 29.2 260.5 Low 11:48:06 - 12:18:06 -1986
Searchlight/Boulder City 12:03:08 -28.8 Dark Down 30.0 259.8 Low 11:48:08 - 12:18:08 -1990
Kingman/Dolan Springs 12:03:05 -28.1 Dark Down 29.4 260.5 Low 11:48:05 - 12:18:05 -2010
DCO 12:03:03 -27.3 Dark Down 28.7 261.2 Low 11:48:03 - 12:18:03 -2010
Laughlin/Bullhead City 12:03:07 -28.5 Dark Down 29.8 260.2 Low 11:48:07 - 12:18:07 -2016
Mohave Valley 12:03:06 -28.4 Dark Down 29.8 260.4 Low 11:48:06 - 12:18:06 -2044
CPSLO 12:03:19 -33.4 Dark Down 34.6 256.0 Up 11:48:19 - 12:18:19 -2052
Lake Havasu City 12:03:05 -28.2 Dark Down 29.7 260.8 Low 11:48:05 - 12:18:05 -2081
Parker 12:03:04 -28.1 Dark Down 29.7 261.0 Low 11:48:04 - 12:18:04 -2116
Wildwood 12:03:13 -31.6 Dark Down 33.2 258.2 Up 11:48:13 - 12:18:13 -2158
Blythe 12:03:03 -28.3 Dark Down 30.1 261.1 Up 11:48:03 - 12:18:03 -2172
Idyllwild 12:03:08 -30.0 Dark Down 31.8 259.7 Up 11:48:08 - 12:18:08 -2178
Calipatria 12:03:04 -29.0 Dark Down 30.9 260.8 Up 11:48:04 - 12:18:04 -2230
Yuma 12:03:02 -28.2 Dark Down 30.2 261.6 Up 11:48:02 - 12:18:02 -2265

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 07TG422, (2019/11/27 12:06UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  7.64 173
Bellatrix      05:25:07.8 +06:20:58  1.6  9.56 164
2Pi 2Ori       04:50:36.7 +08:54:00  4.4  0.78 168
PPM 148025     04:49:56.1 +09:29:22  8.4  0.31 168
PPM 148005     04:48:47.5 +09:40:28 10.0  0.15 169
07TG422        04:48:42.0 +09:31:33 16.0       168
Positions are for J2000

Event circumstances last updated at 2017/12/07 17:07:58 UT

Marc W. Buie, Southwest Research Institute

RECON