RECON: TNO occultation with 04VY130

Event between 04VY130 and star GA1060:00825059 with event index number of 238077

Geocentric closest approach at 2018/12/02 06:42:31 UTC

J2000 position of star is 05:13:14.3 +16:43:38
Equinox of date position of star is 05:14:19.5 +16:44:53
Stellar brightness G=16.8, use SENSEUP=128
Star is 111 degrees from the moon. Moon is 26% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 29.7 AU from the Sun and 28.7 AU from the Earth.
The TNO is moving 23.9 km/sec on the sky relative to the star, or, 4.1 arcsec/hr.
The 1-sigma error in the time of the event is 227 seconds.
The 1-sigma cross-track error in the shadow position is 1110 km.
The sky-plane scale is 20826.2 km/arcsec.

The TNO has an absolute magnitude Hv=8.1
Diameter=144.5 km assuming a 5% albedo -- 6.0 sec chord
Diameter=59.0 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 04VY130, (2018/12/02 06:43UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:00.5 +16:32:45  0.8  8.94 120
Bellatrix      05:26:08.8 +06:21:55  1.6 10.78 109
PPM 120692     05:12:46.9 +16:04:03  5.2  0.78 111
PPM 120704     05:13:17.5 +17:17:03  8.5  0.59 111
PPM 120726     05:14:20.9 +16:54:18  9.9  0.16 111
04VY130        05:14:20.0 +16:44:53 16.8       110
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 4.0 sigma about the mid-time.
The median site spacing is 20.4 km RECON observability=1.0 and success probability=33.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 06:43:27 -59.3 Dark Down 50.7 138.2 Up 06:28:27 - 06:58:27 -266
Kelowna 06:43:26 -59.4 Dark Down 50.9 138.7 Up 06:28:26 - 06:58:26 -268
Penticton 06:43:27 -59.7 Dark Down 51.1 138.2 Up 06:28:27 - 06:58:27 -296
Okanagan Falls 06:43:27 -59.8 Dark Down 51.2 138.0 Up 06:28:27 - 06:58:27 -312
Oliver 06:43:27 -60.0 Dark Down 51.3 137.9 Up 06:28:27 - 06:58:27 -326
Anarchist Mountain Observatory 06:43:27 -60.2 Dark Down 51.5 138.0 Up 06:28:27 - 06:58:27 -345
Oroville 06:43:28 -60.2 Dark Down 51.6 137.9 Up 06:28:28 - 06:58:28 -350
Tonasket 06:43:28 -60.4 Dark Down 51.7 137.7 Up 06:28:28 - 06:58:28 -370
Okanogan 06:43:29 -60.6 Dark Down 51.9 137.2 Up 06:28:29 - 06:58:29 -396
Brewster 06:43:30 -60.8 Dark Down 52.0 136.7 Up 06:28:30 - 06:58:30 -416
Manson/Chelan 06:43:32 -60.9 Dark Down 52.0 136.0 Up 06:28:32 - 06:58:32 -427
Entiat 06:43:32 -61.0 Dark Down 52.1 135.7 Up 06:28:32 - 06:58:32 -445
Wenatchee 06:43:33 -61.2 Dark Down 52.3 135.3 Up 06:28:33 - 06:58:33 -466
Ellensburg 06:43:34 -61.5 Dark Down 52.5 134.7 Up 06:28:34 - 06:58:34 -498
Yakima 06:43:35 -61.8 Dark Down 52.7 134.3 Up 06:28:35 - 06:58:35 -533
Toppenish/White Swan 06:43:35 -62.0 Dark Down 53.0 134.3 Up 06:28:35 - 06:58:35 -555
Pasco 06:43:32 -62.6 Dark Down 53.7 135.9 Up 06:28:32 - 06:58:32 -590
Goldendale 06:43:38 -62.3 Dark Down 53.2 133.2 Up 06:28:38 - 06:58:38 -596
The Dalles 06:43:39 -62.3 Dark Down 53.1 132.5 Up 06:28:39 - 06:58:39 -609
George/Umatilla 06:43:34 -62.8 Dark Down 53.8 135.3 Up 06:28:34 - 06:58:34 -616
PNWRO 06:43:32 -62.9 Dark Down 54.0 136.0 Up 06:28:32 - 06:58:32 -617
Maupin 06:43:40 -62.7 Dark Down 53.5 132.2 Up 06:28:40 - 06:58:40 -649
Madras/Culver 06:43:41 -63.1 Dark Down 53.8 131.6 Up 06:28:41 - 06:58:41 -697
Sisters 06:43:43 -63.2 Dark Down 53.8 130.7 Up 06:28:43 - 06:58:43 -718
Redmond 06:43:42 -63.4 Dark Down 54.0 131.2 Up 06:28:42 - 06:58:42 -728
Bend 06:43:43 -63.5 Dark Down 54.1 130.8 Up 06:28:43 - 06:58:43 -745
Oregon Observatory 06:43:43 -63.6 Dark Down 54.1 130.4 Up 06:28:43 - 06:58:43 -758
La Pine/Gilchrist 06:43:44 -63.7 Dark Down 54.2 130.1 Up 06:28:44 - 06:58:44 -775
North Lake 06:43:43 -64.3 Dark Down 54.8 130.5 Up 06:28:43 - 06:58:43 -827
Chiloquin 06:43:47 -64.4 Dark Down 54.7 128.5 Up 06:28:47 - 06:58:47 -869
Paisley 06:43:43 -64.9 Dark Down 55.4 130.4 Up 06:28:43 - 06:58:43 -885
Klamath Falls 06:43:48 -64.7 Dark Down 55.0 128.2 Up 06:28:48 - 06:58:48 -903
Tulelake 06:43:47 -65.0 Dark Down 55.3 128.3 Up 06:28:47 - 06:58:47 -934
Lakeview 06:43:44 -65.4 Dark Down 55.8 130.1 Up 06:28:44 - 06:58:44 -936
Cedarville 06:43:44 -66.0 Dark Down 56.4 129.6 Up 06:28:44 - 06:58:44 -1000
Fall River/Burney 06:43:48 -65.7 Dark Down 56.0 127.4 Up 06:28:48 - 06:58:48 -1020
Susanville 06:43:48 -66.6 Dark Down 56.8 127.6 Up 06:28:48 - 06:58:48 -1095
Greenville 06:43:49 -66.6 Dark Down 56.8 126.9 Up 06:28:49 - 06:58:49 -1115
Gimple 06:43:49 -66.7 Dark Down 56.8 127.0 Up 06:28:49 - 06:58:49 -1117
Quincy 06:43:49 -66.8 Dark Down 56.9 126.6 Up 06:28:49 - 06:58:49 -1134
Portola 06:43:48 -67.1 Dark Down 57.3 127.1 Up 06:28:48 - 06:58:48 -1156
Reno 06:43:47 -67.6 Dark Down 57.8 127.7 Up 06:28:47 - 06:58:47 -1195
Carson City 06:43:48 -67.9 Dark Down 58.1 127.3 Up 06:28:48 - 06:58:48 -1230
Gardnerville 06:43:48 -68.1 Dark Down 58.2 127.0 Up 06:28:48 - 06:58:48 -1254
Yerington 06:43:46 -68.4 Dark Down 58.6 127.9 Up 06:28:46 - 06:58:46 -1262
Hawthorne 06:43:45 -69.0 Dark Down 59.2 128.0 Up 06:28:45 - 06:58:45 -1317
Lee Vining 06:43:48 -69.2 Dark Down 59.2 126.6 Up 06:28:48 - 06:58:48 -1362
Tonopah 06:43:41 -70.1 Dark Down 60.3 129.4 Up 06:28:41 - 06:58:41 -1392
Niwot 06:42:58 -71.8 Dark Down 64.5 153.2 Up 06:27:58 - 06:57:58 -1414
Bishop 06:43:46 -70.0 Dark Down 60.0 126.8 Up 06:28:46 - 06:58:46 -1435
Beatty 06:43:41 -71.2 Dark Down 61.3 128.5 Up 06:28:41 - 06:58:41 -1515
Lone Pine 06:43:46 -70.7 Dark Down 60.7 126.2 Up 06:28:46 - 06:58:46 -1517
Indian Springs 06:43:38 -72.0 Dark Down 62.2 129.7 Up 06:28:38 - 06:58:38 -1570
CPSLO 06:43:57 -70.0 Dark Down 59.7 120.8 Up 06:28:57 - 06:58:57 -1587
Henderson 06:43:37 -72.8 Dark Down 63.0 130.0 Up 06:28:37 - 06:58:37 -1637
Searchlight/Boulder City 06:43:38 -73.3 Dark Down 63.4 129.2 Up 06:28:38 - 06:58:38 -1695
Patrick 06:43:34 -73.8 Dark Down 64.1 130.9 Up 06:28:34 - 06:58:34 -1722
Laughlin/Bullhead City 06:43:37 -73.7 Dark Down 63.8 129.3 Up 06:28:37 - 06:58:37 -1732
Kingman/Dolan Springs 06:43:35 -73.9 Dark Down 64.1 130.2 Up 06:28:35 - 06:58:35 -1741
Wildwood 06:43:52 -72.1 Dark Down 61.7 121.7 Up 06:28:52 - 06:58:52 -1753
Mohave Valley 06:43:37 -73.9 Dark Down 64.0 128.9 Up 06:28:37 - 06:58:37 -1760
DCO 06:43:32 -74.4 Dark Down 64.7 131.6 Up 06:28:32 - 06:58:32 -1767
Lake Havasu City 06:43:37 -74.3 Dark Down 64.4 128.7 Up 06:28:37 - 06:58:37 -1805
Idyllwild 06:43:47 -73.5 Dark Down 63.2 123.8 Up 06:28:47 - 06:58:47 -1831
Parker 06:43:38 -74.6 Dark Down 64.6 128.1 Up 06:28:38 - 06:58:38 -1841
Blythe 06:43:39 -74.8 Dark Down 64.7 126.8 Up 06:28:39 - 06:58:39 -1888
Calipatria 06:43:44 -74.6 Dark Down 64.4 124.5 Up 06:28:44 - 06:58:44 -1918
Yuma 06:43:41 -75.5 Dark Down 65.3 125.1 Up 06:28:41 - 06:58:41 -1981

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 04VY130, (2018/12/02 06:43UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  8.94 120
Bellatrix      05:25:07.8 +06:20:58  1.6 10.78 109
PPM 120692     05:11:41.6 +16:02:44  5.2  0.78 111
PPM 120704     05:12:11.7 +17:15:45  8.5  0.59 111
PPM 120726     05:13:15.2 +16:53:03  9.9  0.16 111
04VY130        05:13:14.3 +16:43:38 16.8       111
Positions are for J2000

Event circumstances last updated at 2018/10/15 20:16:49 UT

Marc W. Buie, Southwest Research Institute

RECON