RECON: TNO occultation with 07TG422

Event between 07TG422 and star GA0980:00528712 with event index number of 223158

Geocentric closest approach at 2019/11/27 12:06:16 UTC

J2000 position of star is 04:48:42.0 +09:31:32
Equinox of date position of star is 04:49:42.7 +09:33:25
Stellar brightness G=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 556 seconds.
The 1-sigma cross-track error in the shadow position is 5499 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 23.3 km RECON observability=1.0 and success probability=7.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 12:03:37 -32.3 Dark Down 29.4 248.5 Low 11:48:37 - 12:18:37 -2928
Oroville 12:03:35 -32.3 Dark Down 29.5 248.9 Low 11:48:35 - 12:18:35 -2979
Tonasket 12:03:35 -32.3 Dark Down 29.6 249.0 Low 11:48:35 - 12:18:35 -2999
Okanogan 12:03:34 -32.5 Dark Down 29.8 249.1 Low 11:48:34 - 12:18:34 -3029
Brewster 12:03:34 -32.6 Dark Down 30.0 249.0 Up 11:48:34 - 12:18:34 -3054
Manson/Chelan 12:03:34 -32.9 Dark Down 30.3 248.8 Up 11:48:34 - 12:18:34 -3074
Entiat 12:03:34 -32.9 Dark Down 30.5 248.9 Up 11:48:34 - 12:18:34 -3094
Wenatchee 12:03:33 -33.0 Dark Down 30.6 248.9 Up 11:48:33 - 12:18:33 -3117
Ellensburg 12:03:33 -33.2 Dark Down 30.9 248.9 Up 11:48:33 - 12:18:33 -3155
Yakima 12:03:32 -33.2 Dark Down 31.1 249.2 Up 11:48:32 - 12:18:32 -3191
Toppenish/White Swan 12:03:31 -33.1 Dark Down 31.0 249.4 Up 11:48:31 - 12:18:31 -3209
Pasco 12:03:28 -32.3 Dark Down 30.3 250.6 Up 11:48:28 - 12:18:28 -3212
PNWRO 12:03:27 -32.1 Dark Down 30.2 250.9 Up 11:48:27 - 12:18:27 -3232
George/Umatilla 12:03:28 -32.5 Dark Down 30.5 250.6 Up 11:48:28 - 12:18:28 -3243
Goldendale 12:03:30 -33.5 Dark Down 31.5 249.4 Up 11:48:30 - 12:18:30 -3261
The Dalles 12:03:30 -33.7 Dark Down 31.8 249.2 Up 11:48:30 - 12:18:30 -3283
Maupin 12:03:29 -33.7 Dark Down 31.9 249.5 Up 11:48:29 - 12:18:29 -3320
Madras/Culver 12:03:28 -33.8 Dark Down 32.1 249.8 Up 11:48:28 - 12:18:28 -3370
Redmond 12:03:27 -33.8 Dark Down 32.3 250.0 Up 11:48:27 - 12:18:27 -3403
Sisters 12:03:28 -34.1 Dark Down 32.6 249.6 Up 11:48:28 - 12:18:28 -3404
Bend 12:03:27 -33.9 Dark Down 32.5 250.0 Up 11:48:27 - 12:18:27 -3424
Oregon Observatory 12:03:27 -34.0 Dark Down 32.6 250.0 Up 11:48:27 - 12:18:27 -3441
La Pine/Gilchrist 12:03:27 -34.1 Dark Down 32.7 250.0 Up 11:48:27 - 12:18:27 -3460
North Lake 12:03:25 -33.7 Dark Down 32.5 250.8 Up 11:48:25 - 12:18:25 -3496
Paisley 12:03:22 -33.4 Dark Down 32.4 251.4 Up 11:48:22 - 12:18:22 -3545
Chiloquin 12:03:25 -34.4 Dark Down 33.3 250.4 Up 11:48:25 - 12:18:25 -3565
Lakeview 12:03:21 -33.3 Dark Down 32.4 251.9 Up 11:48:21 - 12:18:21 -3591
Klamath Falls 12:03:25 -34.4 Dark Down 33.4 250.7 Up 11:48:25 - 12:18:25 -3597
Tulelake 12:03:23 -34.1 Dark Down 33.3 251.1 Up 11:48:23 - 12:18:23 -3620
Cedarville 12:03:19 -33.2 Dark Down 32.5 252.4 Up 11:48:19 - 12:18:19 -3652
Niwot 12:02:51 -21.8 Dark Down 21.8 264.1 Low 11:47:51 - 12:17:51 -3656
Fall River/Burney 12:03:21 -34.1 Dark Down 33.5 251.7 Up 11:48:21 - 12:18:21 -3705
Susanville 12:03:18 -33.6 Dark Down 33.2 252.7 Up 11:48:18 - 12:18:18 -3761
Gimple 12:03:18 -33.7 Dark Down 33.4 252.7 Up 11:48:18 - 12:18:18 -3788
Greenville 12:03:18 -33.8 Dark Down 33.5 252.6 Up 11:48:18 - 12:18:18 -3789
Quincy 12:03:18 -33.8 Dark Down 33.5 252.8 Up 11:48:18 - 12:18:18 -3808
Portola 12:03:16 -33.4 Dark Down 33.2 253.2 Up 11:48:16 - 12:18:16 -3817
Reno 12:03:14 -32.9 Dark Down 32.8 253.9 Up 11:48:14 - 12:18:14 -3838
Carson City 12:03:14 -32.9 Dark Down 32.9 254.1 Up 11:48:14 - 12:18:14 -3872
Yerington 12:03:12 -32.4 Dark Down 32.5 254.7 Up 11:48:12 - 12:18:12 -3887
Gardnerville 12:03:13 -32.8 Dark Down 33.0 254.3 Up 11:48:13 - 12:18:13 -3896
Hawthorne 12:03:10 -32.0 Dark Down 32.2 255.4 Up 11:48:10 - 12:18:10 -3928
Tonopah 12:03:06 -30.8 Dark Down 31.3 256.7 Up 11:48:06 - 12:18:06 -3962
Lee Vining 12:03:10 -32.3 Dark Down 32.7 255.4 Up 11:48:10 - 12:18:10 -3986
Bishop 12:03:07 -31.7 Dark Down 32.3 256.3 Up 11:48:07 - 12:18:07 -4039
Beatty 12:03:03 -30.4 Dark Down 31.2 257.7 Up 11:48:03 - 12:18:03 -4072
Indian Springs 12:03:00 -29.5 Dark Down 30.4 258.7 Up 11:48:00 - 12:18:00 -4095
Lone Pine 12:03:05 -31.4 Dark Down 32.3 257.0 Up 11:48:05 - 12:18:05 -4112
Henderson 12:02:58 -28.9 Dark Down 30.0 259.4 Low 11:47:58 - 12:17:58 -4142
Patrick 12:02:54 -28.0 Dark Down 29.2 260.5 Low 11:47:54 - 12:17:54 -4194
Searchlight/Boulder City 12:02:56 -28.8 Dark Down 30.0 259.8 Up 11:47:56 - 12:17:56 -4198
Kingman/Dolan Springs 12:02:55 -28.1 Dark Down 29.4 260.5 Low 11:47:55 - 12:17:55 -4218
DCO 12:02:52 -27.4 Dark Down 28.7 261.1 Low 11:47:52 - 12:17:52 -4218
Laughlin/Bullhead City 12:02:55 -28.5 Dark Down 29.8 260.2 Low 11:47:55 - 12:17:55 -4225
Mohave Valley 12:02:55 -28.5 Dark Down 29.9 260.3 Low 11:47:55 - 12:17:55 -4252
CPSLO 12:03:08 -33.4 Dark Down 34.6 256.0 Up 11:48:08 - 12:18:08 -4260
Lake Havasu City 12:02:53 -28.2 Dark Down 29.7 260.7 Low 11:47:53 - 12:17:53 -4290
Parker 12:02:53 -28.2 Dark Down 29.8 260.9 Low 11:47:53 - 12:17:53 -4324
Wildwood 12:03:01 -31.7 Dark Down 33.3 258.2 Up 11:48:01 - 12:18:01 -4366
Blythe 12:02:52 -28.3 Dark Down 30.1 261.1 Up 11:47:52 - 12:17:52 -4380
Idyllwild 12:02:57 -30.1 Dark Down 31.8 259.6 Up 11:47:57 - 12:17:57 -4387
Calipatria 12:02:53 -29.0 Dark Down 30.9 260.8 Up 11:47:53 - 12:17:53 -4438
Yuma 12:02:50 -28.2 Dark Down 30.3 261.6 Up 11:47:50 - 12:17:50 -4474

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 +09:31:32 16.0       168
Positions are for J2000

Event circumstances last updated at 2018/06/05 18:21:23 UT

Marc W. Buie, Southwest Research Institute

RECON