RECON: TNO occultation with 15VV172

Event between 15VV172 and star GA1040:00341179 with event index number of 1021040

Geocentric closest approach at 2019/12/02 01:02:44 UTC

J2000 position of star is 03:28:14.4 +15:49:09
Equinox of date position of star is 03:29:18.8 +15:53:04
Stellar brightness G=15.0, use SENSEUP=128
Star is 99 degrees from the moon. Moon is 29% illuminated.
TNO apparent brightness V=23.8

[RECON map]
TNO is 42.4 AU from the Sun and 41.5 AU from the Earth.
The TNO is moving 24.8 km/sec on the sky relative to the star, or, 3.0 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 4749 km.
The sky-plane scale is 30084.2 km/arcsec.

The TNO has an absolute magnitude Hv=7.5
Diameter=188.8 km assuming a 5% albedo -- 7.6 sec chord
Diameter=77.1 km assuming a 30% albedo -- 3.1 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 15VV172, (2019/12/02 01:03UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:04.0 +16:32:52  0.8 16.26 114
Menkar         03:03:19.4 +04:10:00  2.5 13.35  89
PPM 119236     03:38:55.1 +15:29:40  6.4  2.33 101
PPM 119118     03:30:27.0 +16:15:57  8.5  0.46  99
PPM 119099     03:29:15.2 +15:57:08  9.8  0.07  99
15VV172        03:29:21.6 +15:53:14 15.0        99
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 0.0 km RECON observability=0.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 01:04:30 -9.9 NT Up 15.2 83.3 Really Low 00:49:30 - 01:19:30 3933
Kelowna 01:04:30 -10.1 NT Up 15.4 83.6 Really Low 00:49:30 - 01:19:30 3927
Penticton 01:04:32 -9.9 NT Up 15.2 83.4 Really Low 00:49:32 - 01:19:32 3914
Okanagan Falls 01:04:33 -9.8 NT Up 15.2 83.3 Really Low 00:49:33 - 01:19:33 3907
Oliver 01:04:33 -9.8 NT Up 15.2 83.3 Really Low 00:49:33 - 01:19:33 3899
Anarchist Mountain Observatory 01:04:34 -9.8 NT Up 15.3 83.4 Really Low 00:49:34 - 01:19:34 3887
Oroville 01:04:34 -9.7 NT Up 15.3 83.3 Really Low 00:49:34 - 01:19:34 3885
Tonasket 01:04:35 -9.7 NT Up 15.2 83.2 Really Low 00:49:35 - 01:19:35 3874
Okanogan 01:04:36 -9.4 NT Up 15.1 83.0 Really Low 00:49:36 - 01:19:36 3862
Brewster 01:04:38 -9.2 NT Up 14.9 82.8 Really Low 00:49:38 - 01:19:38 3853
Manson/Chelan 01:04:39 -8.9 NT Up 14.7 82.5 Really Low 00:49:39 - 01:19:39 3851
Entiat 01:04:40 -8.8 NT Up 14.6 82.4 Really Low 00:49:40 - 01:19:40 3843
Wenatchee 01:04:40 -8.6 NT Up 14.5 82.3 Really Low 00:49:40 - 01:19:40 3832
Ellensburg 01:04:42 -8.3 NT Up 14.3 82.0 Really Low 00:49:42 - 01:19:42 3817
Yakima 01:04:44 -8.2 NT Up 14.2 81.9 Really Low 00:49:44 - 01:19:44 3798
Toppenish/White Swan 01:04:45 -8.2 NT Up 14.3 82.0 Really Low 00:49:45 - 01:19:45 3783
Goldendale 01:04:47 -7.7 NT Up 14.0 81.5 Really Low 00:49:47 - 01:19:47 3765
The Dalles 01:04:48 -7.4 NT Up 13.7 81.2 Really Low 00:49:48 - 01:19:48 3762
Pasco 01:04:45 -8.9 NT Up 15.2 82.8 Really Low 00:49:45 - 01:19:45 3749
Maupin 01:04:49 -7.3 NT Up 13.7 81.2 Really Low 00:49:49 - 01:19:49 3738
George/Umatilla 01:04:46 -8.7 NT Up 15.0 82.6 Really Low 00:49:46 - 01:19:46 3737
PNWRO 01:04:46 -9.0 NT Up 15.3 82.9 Really Low 00:49:46 - 01:19:46 3732
Madras/Culver 01:04:51 -7.0 NT Up 13.6 81.0 Really Low 00:49:51 - 01:19:51 3711
Sisters 01:04:53 -6.6 NT Up 13.2 80.7 Really Low 00:49:53 - 01:19:53 3703
Redmond 01:04:53 -6.9 NT Up 13.5 80.9 Really Low 00:49:53 - 01:19:53 3693
Bend 01:04:53 -6.7 NT Up 13.4 80.8 Really Low 00:49:53 - 01:19:53 3685
Oregon Observatory 01:04:54 -6.5 NT Up 13.2 80.7 Really Low 00:49:54 - 01:19:54 3679
La Pine/Gilchrist 01:04:55 -6.4 NT Up 13.2 80.6 Really Low 00:49:55 - 01:19:55 3669
North Lake 01:04:57 -6.6 NT Up 13.5 80.9 Really Low 00:49:57 - 01:19:57 3632
Chiloquin 01:04:59 -5.7 CT Up 12.7 80.1 Really Low 00:49:59 - 01:19:59 3617
Klamath Falls 01:05:01 -5.6 CT Up 12.7 80.1 Really Low 00:50:01 - 01:20:01 3596
Paisley 01:04:59 -6.7 NT Up 13.7 81.0 Really Low 00:49:59 - 01:19:59 3593
Tulelake 01:05:01 -5.7 CT Up 12.9 80.2 Really Low 00:50:01 - 01:20:01 3574
Lakeview 01:05:01 -6.6 NT Up 13.8 81.0 Really Low 00:50:01 - 01:20:01 3561
Fall River/Burney 01:05:05 -5.4 CT Up 12.8 80.1 Really Low 00:50:05 - 01:20:05 3520
Cedarville 01:05:03 -6.4 NT Up 13.8 81.0 Really Low 00:50:03 - 01:20:03 3519
Susanville 01:05:07 -5.7 CT Up 13.3 80.4 Really Low 00:50:07 - 01:20:07 3466
Greenville 01:05:09 -5.4 CT Up 13.0 80.2 Really Low 00:50:09 - 01:20:09 3456
Gimple 01:05:08 -5.4 CT Up 13.1 80.2 Really Low 00:50:08 - 01:20:08 3454
Quincy 01:05:09 -5.3 CT Up 13.0 80.1 Really Low 00:50:09 - 01:20:09 3444
Portola 01:05:10 -5.6 CT Up 13.3 80.4 Really Low 00:50:10 - 01:20:10 3425
Reno 01:05:11 -5.9 CT Up 13.8 80.7 Really Low 00:50:11 - 01:20:11 3393
Carson City 01:05:12 -5.8 CT Up 13.8 80.6 Really Low 00:50:12 - 01:20:12 3371
Gardnerville 01:05:13 -5.7 CT Up 13.8 80.6 Really Low 00:50:13 - 01:20:13 3355
Yerington 01:05:13 -6.2 NT Up 14.2 81.0 Really Low 00:50:13 - 01:20:13 3343
Hawthorne 01:05:15 -6.4 NT Up 14.6 81.2 Really Low 00:50:15 - 01:20:15 3301
Lee Vining 01:05:17 -5.8 CT Up 14.1 80.8 Really Low 00:50:17 - 01:20:17 3278
Tonopah 01:05:16 -7.2 NT Up 15.6 81.9 Really Low 00:50:16 - 01:20:16 3235
Bishop 01:05:18 -6.1 NT Up 14.6 81.0 Really Low 00:50:18 - 01:20:18 3221
Lone Pine 01:05:21 -6.1 NT Up 14.7 81.0 Really Low 00:50:21 - 01:20:21 3163
Beatty 01:05:20 -7.1 NT Up 15.8 81.8 Really Low 00:50:20 - 01:20:20 3148
CPSLO 01:05:26 -3.6 CT Up 12.4 79.3 Really Low 00:50:26 - 01:20:26 3144
Indian Springs 01:05:21 -7.8 NT Up 16.6 82.4 Really Low 00:50:21 - 01:20:21 3097
Henderson 01:05:23 -8.2 NT Up 17.1 82.6 Really Low 00:50:23 - 01:20:23 3043
Niwot 01:05:03 -16.7 AT Up 25.0 90.0 Low 00:50:03 - 01:20:03 3034
SwRI 01:05:03 -16.6 AT Up 24.9 89.9 Low 00:50:03 - 01:20:03 3030
Wildwood 01:05:30 -4.7 CT Up 13.9 80.1 Really Low 00:50:30 - 01:20:30 3008
Searchlight/Boulder City 01:05:25 -8.0 NT Up 17.1 82.5 Really Low 00:50:25 - 01:20:25 3002
Laughlin/Bullhead City 01:05:25 -8.2 NT Up 17.3 82.6 Really Low 00:50:25 - 01:20:25 2972
Patrick 01:05:24 -8.8 NT Up 17.9 83.0 Really Low 00:50:24 - 01:20:24 2969
Kingman/Dolan Springs 01:05:25 -8.6 NT Up 17.8 82.9 Really Low 00:50:25 - 01:20:25 2959
Mohave Valley 01:05:26 -8.1 NT Up 17.3 82.5 Really Low 00:50:26 - 01:20:26 2953
Idyllwild 01:05:31 -6.0 NT Up 15.4 81.0 Really Low 00:50:31 - 01:20:31 2932
DCO 01:05:25 -9.2 NT Up 18.5 83.3 Really Low 00:50:25 - 01:20:25 2927
Lake Havasu City 01:05:28 -8.1 NT Up 17.5 82.5 Really Low 00:50:28 - 01:20:28 2918
Parker 01:05:29 -8.0 NT Up 17.4 82.4 Really Low 00:50:29 - 01:20:29 2892
Blythe 01:05:31 -7.6 NT Up 17.1 82.1 Really Low 00:50:31 - 01:20:31 2864
Calipatria 01:05:33 -6.7 NT Up 16.3 81.5 Really Low 00:50:33 - 01:20:33 2855
Yuma 01:05:34 -7.3 NT Up 17.0 81.8 Really Low 00:50:34 - 01:20:34 2799

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 15VV172, (2019/12/02 01:03UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 16.26 114
Menkar         03:02:16.8 +04:05:21  2.5 13.35  89
PPM 119236     03:37:47.9 +15:25:49  6.4  2.33 101
PPM 119118     03:29:19.6 +16:11:54  8.5  0.46  99
PPM 119099     03:28:07.9 +15:53:03  9.8  0.07  99
15VV172        03:28:14.4 +15:49:09 15.0        99
Positions are for J2000

Event circumstances last updated at 2019/01/30 20:39:20 UT

Marc W. Buie, Southwest Research Institute

RECON