RECON: TNO occultation with 02VD130

Event between 02VD130 and star UC4-584-032519 with event index number of 237686

Geocentric closest approach at 2020/01/08 08:26:06 UTC

J2000 position of star is 06:41:58.0 +26:39:02
Equinox of date position of star is 06:43:05.4 +26:37:55
Stellar brightness R=16.6, use SENSEUP=128
Star is 24 degrees from the moon. Moon is 93% illuminated.
TNO apparent brightness V=22.2

[RECON map]
TNO is 32.4 AU from the Sun and 31.4 AU from the Earth.
The TNO is moving 24.0 km/sec on the sky relative to the star, or, 3.8 arcsec/hr.
The 1-sigma error in the time of the event is 294 seconds.
The 1-sigma cross-track error in the shadow position is 2251 km.
The sky-plane scale is 22808.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=230.2 km assuming a 5% albedo -- 9.6 sec chord
Diameter=94.0 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is 2:1E+4:2II
 
 
 
 
 
 

Star training set for 02VD130, (2020/01/08 08:26UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:32.4 +27:58:35  1.1 14.12  38
Alhena         06:38:52.1 +16:22:50  1.9 10.30  23
54 Aur         06:40:48.9 +28:14:37  5.8  1.70  23
PPM 096294     06:39:50.4 +26:53:11  8.3  0.80  23
PPM 096407     06:43:40.2 +26:44:28 10.0  0.15  24
PPM 096399     06:43:21.1 +26:35:36 10.8  0.05  24
02VD130        06:43:12.8 +26:37:48 16.6        24
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 3.1 sigma about the mid-time.
The median site spacing is 24.4 km RECON observability=1.0 and success probability=17.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 08:25:33 -63.0 Dark Up 65.3 210.7 Up 08:10:33 - 08:40:33 -856
Tonasket 08:25:33 -63.2 Dark Up 65.5 211.0 Up 08:10:33 - 08:40:33 -879
Okanogan 08:25:33 -63.6 Dark Up 65.8 211.0 Up 08:10:33 - 08:40:33 -915
Brewster 08:25:33 -63.9 Dark Up 66.1 211.0 Up 08:10:33 - 08:40:33 -945
Manson/Chelan 08:25:34 -64.1 Dark Up 66.4 210.4 Up 08:10:34 - 08:40:34 -970
Entiat 08:25:34 -64.4 Dark Up 66.6 210.6 Up 08:10:34 - 08:40:34 -994
Wenatchee 08:25:34 -64.6 Dark Up 66.9 210.7 Up 08:10:34 - 08:40:34 -1021
Ellensburg 08:25:34 -65.1 Dark Up 67.3 210.7 Up 08:10:34 - 08:40:34 -1066
Yakima 08:25:34 -65.5 Dark Up 67.7 211.2 Up 08:10:34 - 08:40:34 -1107
Pasco 08:25:29 -65.6 Dark Up 67.4 214.6 Up 08:10:29 - 08:40:29 -1123
Toppenish/White Swan 08:25:33 -65.7 Dark Up 67.8 211.8 Up 08:10:33 - 08:40:33 -1127
PNWRO 08:25:28 -65.8 Dark Up 67.5 215.4 Up 08:10:28 - 08:40:28 -1145
George/Umatilla 08:25:30 -66.0 Dark Up 67.8 214.6 Up 08:10:30 - 08:40:30 -1160
Goldendale 08:25:34 -66.2 Dark Up 68.4 211.6 Up 08:10:34 - 08:40:34 -1189
The Dalles 08:25:35 -66.5 Dark Up 68.7 211.1 Up 08:10:35 - 08:40:35 -1217
Maupin 08:25:34 -66.9 Dark Up 69.1 211.9 Up 08:10:34 - 08:40:34 -1259
Madras/Culver 08:25:34 -67.5 Dark Up 69.5 212.5 Up 08:10:34 - 08:40:34 -1316
Redmond 08:25:34 -67.8 Dark Up 69.9 212.9 Up 08:10:34 - 08:40:34 -1354
Sisters 08:25:35 -67.8 Dark Up 70.0 212.0 Up 08:10:35 - 08:40:35 -1356
Bend 08:25:34 -68.0 Dark Up 70.1 212.9 Up 08:10:34 - 08:40:34 -1378
Oregon Observatory 08:25:34 -68.2 Dark Up 70.3 212.9 Up 08:10:34 - 08:40:34 -1397
La Pine/Gilchrist 08:25:34 -68.4 Dark Up 70.5 213.1 Up 08:10:34 - 08:40:34 -1420
North Lake 08:25:32 -68.8 Dark Up 70.6 215.2 Up 08:10:32 - 08:40:32 -1457
Niwot 08:24:38 -65.8 Dark Up 63.3 248.3 Up 08:09:38 - 08:39:38 -1498
Paisley 08:25:30 -69.3 Dark Up 70.9 216.9 Up 08:10:30 - 08:40:30 -1510
Chiloquin 08:25:34 -69.6 Dark Up 71.6 214.0 Up 08:10:34 - 08:40:34 -1540
Lakeview 08:25:29 -69.8 Dark Up 71.2 218.3 Up 08:10:29 - 08:40:29 -1560
Klamath Falls 08:25:34 -69.9 Dark Up 71.8 214.8 Up 08:10:34 - 08:40:34 -1575
Tulelake 08:25:32 -70.1 Dark Up 71.9 216.0 Up 08:10:32 - 08:40:32 -1600
Cedarville 08:25:27 -70.4 Dark Up 71.6 219.9 Up 08:10:27 - 08:40:27 -1627
Fall River/Burney 08:25:31 -71.0 Dark Up 72.6 217.9 Up 08:10:31 - 08:40:31 -1695
Susanville 08:25:28 -71.5 Dark Up 72.7 221.0 Up 08:10:28 - 08:40:28 -1751
Gimple 08:25:29 -71.8 Dark Up 73.0 221.1 Up 08:10:29 - 08:40:29 -1783
Greenville 08:25:29 -71.9 Dark Up 73.1 220.9 Up 08:10:29 - 08:40:29 -1784
Quincy 08:25:29 -72.1 Dark Up 73.2 221.3 Up 08:10:29 - 08:40:29 -1806
Portola 08:25:27 -72.1 Dark Up 73.1 222.8 Up 08:10:27 - 08:40:27 -1813
Reno 08:25:24 -72.2 Dark Up 72.9 224.9 Up 08:10:24 - 08:40:24 -1831
Carson City 08:25:24 -72.6 Dark Up 73.2 225.8 Up 08:10:24 - 08:40:24 -1869
Yerington 08:25:22 -72.6 Dark Up 73.0 227.8 Up 08:10:22 - 08:40:22 -1880
Gardnerville 08:25:24 -72.8 Dark Up 73.3 226.5 Up 08:10:24 - 08:40:24 -1894
Hawthorne 08:25:19 -72.9 Dark Up 73.0 230.1 Up 08:10:19 - 08:40:19 -1922
Tonopah 08:25:14 -73.0 Dark Up 72.4 234.3 Up 08:10:14 - 08:40:14 -1949
Lee Vining 08:25:21 -73.6 Dark Up 73.6 230.5 Up 08:10:21 - 08:40:21 -1989
Bishop 08:25:17 -74.0 Dark Up 73.5 233.7 Up 08:10:17 - 08:40:17 -2042
Beatty 08:25:11 -73.9 Dark Up 72.7 238.3 Up 08:10:11 - 08:40:11 -2064
Indian Springs 08:25:07 -73.7 Dark Up 72.2 241.2 Up 08:10:07 - 08:40:07 -2080
Lone Pine 08:25:16 -74.6 Dark Up 73.8 236.5 Up 08:10:16 - 08:40:16 -2118
Henderson 08:25:04 -73.9 Dark Up 71.9 243.8 Up 08:10:04 - 08:40:04 -2124
Patrick 08:25:00 -73.9 Dark Up 71.4 247.3 Up 08:10:00 - 08:40:00 -2170
Searchlight/Boulder City 08:25:03 -74.3 Dark Up 72.1 245.5 Up 08:10:03 - 08:40:03 -2185
DCO 08:24:57 -73.7 Dark Up 70.9 249.2 Up 08:09:57 - 08:39:57 -2189
Kingman/Dolan Springs 08:25:00 -74.1 Dark Up 71.6 247.6 Up 08:10:00 - 08:40:00 -2198
Laughlin/Bullhead City 08:25:02 -74.4 Dark Up 72.0 246.9 Up 08:10:02 - 08:40:02 -2210
Mohave Valley 08:25:01 -74.6 Dark Up 72.1 247.7 Up 08:10:01 - 08:40:01 -2239
Lake Havasu City 08:25:00 -74.8 Dark Up 72.0 249.2 Up 08:10:00 - 08:40:00 -2277
CPSLO 08:25:23 -76.5 Dark Up 76.2 234.6 Up 08:10:23 - 08:40:23 -2297
Parker 08:25:00 -75.1 Dark Up 72.1 250.3 Up 08:10:00 - 08:40:00 -2314
Blythe 08:25:00 -75.6 Dark Up 72.6 251.4 Up 08:10:00 - 08:40:00 -2376
Wildwood 08:25:15 -77.0 Dark Up 75.4 243.3 Up 08:10:15 - 08:40:15 -2396
Idyllwild 08:25:08 -76.6 Dark Up 74.1 247.9 Up 08:10:08 - 08:40:08 -2402
Calipatria 08:25:03 -76.5 Dark Up 73.4 251.6 Up 08:10:03 - 08:40:03 -2446
Yuma 08:24:59 -76.3 Dark Up 72.9 254.2 Up 08:09:59 - 08:39:59 -2476

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 02VD130, (2020/01/08 08:26UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.1 +28:01:33  1.1 14.12  38
Alhena         06:37:42.8 +16:23:57  1.9 10.30  23
54 Aur         06:39:33.1 +28:15:47  5.8  1.70  23
PPM 096294     06:38:35.5 +26:54:19  8.3  0.80  23
PPM 096407     06:42:25.4 +26:45:43 10.0  0.15  24
PPM 096399     06:42:06.3 +26:36:51 10.8  0.05  24
02VD130        06:41:58.0 +26:39:02 16.6        24
Positions are for J2000

Event circumstances last updated at 2018/01/16 17:08:39 UT

Marc W. Buie, Southwest Research Institute

RECON