RECON: TNO occultation with 02XV93

Event between 02XV93 and star GA1260:02748215 with event index number of 168708

Geocentric closest approach at 2018/12/14 04:10:58 UTC

J2000 position of star is 06:21:45.1 +36:31:20
Equinox of date position of star is 06:23:01.4 +36:30:43
Stellar brightness G=16.4, use SENSEUP=128
Star is 117 degrees from the moon. Moon is 38% illuminated.
TNO apparent brightness V=20.9

[RECON map]
TNO is 38.6 AU from the Sun and 37.7 AU from the Earth.
The TNO is moving 24.8 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 171 seconds.
The 1-sigma cross-track error in the shadow position is 1563 km.
The sky-plane scale is 27329.9 km/arcsec.

The TNO has an absolute magnitude Hv=5.0
Diameter=613.8 km assuming a 5% albedo -- 24.7 sec chord
Diameter=250.6 km assuming a 30% albedo -- 10.1 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 02XV93, (2018/12/14 04:11UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:28.4 +27:58:44  1.1 19.54 136
34Bet Aur      06:00:55.2 +44:56:50  1.9  9.41 112
40 Aur         06:07:53.5 +38:28:45  5.4  3.59 114
PPM 071509     06:21:19.7 +37:10:28  8.5  0.75 116
PPM 071518     06:22:10.5 +36:33:55  9.1  0.18 117
02XV93         06:23:02.0 +36:30:43 16.4       117
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 5.0 sigma about the mid-time.
The median site spacing is 21.4 km RECON observability=1.0 and success probability=23.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 04:13:46 -39.9 Dark Up 39.9 77.7 Up 03:59:00 - 04:28:32 -786
Kelowna 04:13:45 -40.1 Dark Up 40.1 78.0 Up 03:58:59 - 04:28:31 -796
Penticton 04:13:47 -40.1 Dark Up 39.9 77.6 Up 03:59:01 - 04:28:33 -820
Okanagan Falls 04:13:47 -40.1 Dark Up 39.9 77.4 Up 03:59:01 - 04:28:33 -836
Oliver 04:13:47 -40.2 Dark Up 39.8 77.3 Up 03:59:01 - 04:28:33 -850
Anarchist Mountain Observatory 04:13:48 -40.3 Dark Up 39.9 77.3 Up 03:59:02 - 04:28:34 -872
Oroville 04:13:48 -40.3 Dark Up 39.9 77.2 Up 03:59:02 - 04:28:34 -876
Tonasket 04:13:49 -40.3 Dark Up 39.8 77.0 Up 03:59:03 - 04:28:35 -896
Okanogan 04:13:50 -40.3 Dark Up 39.7 76.6 Up 03:59:04 - 04:28:36 -919
Brewster 04:13:51 -40.2 Dark Up 39.5 76.3 Up 03:59:05 - 04:28:37 -934
Manson/Chelan 04:13:52 -40.0 Dark Up 39.2 75.9 Up 03:59:06 - 04:28:38 -938
Entiat 04:13:53 -40.0 Dark Up 39.1 75.7 Up 03:59:07 - 04:28:39 -954
Wenatchee 04:13:53 -40.0 Dark Up 38.9 75.4 Up 03:59:07 - 04:28:39 -972
Ellensburg 04:13:54 -39.9 Dark Up 38.7 75.0 Up 03:59:08 - 04:28:40 -999
Yakima 04:13:56 -40.0 Dark Up 38.6 74.7 Up 03:59:10 - 04:28:42 -1034
Toppenish/White Swan 04:13:56 -40.1 Dark Up 38.6 74.6 Up 03:59:10 - 04:28:42 -1059
Goldendale 04:13:58 -39.9 Dark Up 38.2 73.9 Up 03:59:12 - 04:28:44 -1090
The Dalles 04:13:59 -39.7 Dark Up 37.9 73.6 Up 03:59:13 - 04:28:45 -1094
Pasco 04:13:55 -41.0 Dark Up 39.5 75.2 Up 03:59:09 - 04:28:41 -1120
Maupin 04:14:00 -39.8 Dark Up 37.9 73.3 Up 03:59:14 - 04:28:46 -1135
George/Umatilla 04:13:56 -40.9 Dark Up 39.2 74.8 Up 03:59:10 - 04:28:42 -1140
PNWRO 04:13:55 -41.2 Dark Up 39.5 75.2 Up 03:59:09 - 04:28:41 -1150
Madras/Culver 04:14:01 -39.8 Dark Up 37.7 72.9 Up 03:59:15 - 04:28:47 -1181
Sisters 04:14:03 -39.5 Dark Up 37.3 72.4 Up 03:59:17 - 04:28:49 -1191
Redmond 04:14:02 -39.8 Dark Up 37.5 72.6 Up 03:59:16 - 04:28:48 -1210
Bend 04:14:03 -39.7 Dark Up 37.4 72.4 Up 03:59:17 - 04:28:49 -1223
Oregon Observatory 04:14:04 -39.7 Dark Up 37.2 72.2 Up 03:59:18 - 04:28:50 -1233
La Pine/Gilchrist 04:14:05 -39.6 Dark Up 37.1 72.0 Up 03:59:19 - 04:28:51 -1248
North Lake 04:14:05 -40.1 Dark Up 37.4 72.0 Up 03:59:19 - 04:28:51 -1312
Chiloquin 04:14:08 -39.5 Dark Up 36.5 71.0 Up 03:59:22 - 04:28:54 -1330
Klamath Falls 04:14:08 -39.6 Dark Up 36.5 70.8 Up 03:59:22 - 04:28:54 -1364
Paisley 04:14:05 -40.4 Dark Up 37.5 71.8 Up 03:59:19 - 04:28:51 -1376
Tulelake 04:14:08 -39.8 Dark Up 36.6 70.8 Up 03:59:22 - 04:28:54 -1401
Lakeview 04:14:07 -40.6 Dark Up 37.5 71.5 Up 03:59:21 - 04:28:53 -1429
Fall River/Burney 04:14:11 -39.9 Dark Up 36.4 70.2 Up 03:59:25 - 04:28:57 -1485
Cedarville 04:14:08 -40.8 Dark Up 37.4 71.1 Up 03:59:22 - 04:28:54 -1495
Susanville 04:14:11 -40.5 Dark Up 36.7 70.1 Up 03:59:25 - 04:28:57 -1574
Greenville 04:14:12 -40.3 Dark Up 36.4 69.8 Up 03:59:26 - 04:28:58 -1586
Gimple 04:14:12 -40.4 Dark Up 36.5 69.8 Up 03:59:26 - 04:28:58 -1590
Quincy 04:14:12 -40.3 Dark Up 36.3 69.6 Up 03:59:26 - 04:28:58 -1604
Portola 04:14:12 -40.7 Dark Up 36.6 69.8 Up 03:59:26 - 04:28:58 -1637
Reno 04:14:12 -41.2 Dark Up 37.0 69.9 Up 03:59:26 - 04:28:58 -1690
Carson City 04:14:12 -41.2 Dark Up 36.9 69.6 Up 03:59:26 - 04:28:58 -1723
Gardnerville 04:14:13 -41.3 Dark Up 36.8 69.5 Up 03:59:27 - 04:28:59 -1748
Yerington 04:14:12 -41.7 Dark Up 37.3 69.8 Up 03:59:26 - 04:28:58 -1769
Hawthorne 04:14:12 -42.2 Dark Up 37.5 69.6 Up 03:59:26 - 04:28:58 -1835
Lee Vining 04:14:14 -41.8 Dark Up 37.0 69.0 Up 03:59:28 - 04:29:00 -1865
Tonopah 04:14:11 -43.3 Dark Up 38.4 69.9 Up 03:59:25 - 04:28:57 -1940
Bishop 04:14:15 -42.4 Dark Up 37.3 68.9 Up 03:59:29 - 04:29:01 -1953
Lone Pine 04:14:15 -42.7 Dark Up 37.3 68.5 Up 03:59:29 - 04:29:01 -2039
CPSLO 04:14:22 -40.6 Dark Up 34.8 66.7 Up 03:59:36 - 04:29:08 -2040
Beatty 04:14:12 -43.7 Dark Up 38.3 69.2 Up 03:59:26 - 04:28:58 -2069
Indian Springs 04:14:12 -44.6 Dark Up 39.0 69.4 Up 03:59:26 - 04:28:58 -2147
Niwot 04:13:44 -52.1 Dark Up 47.9 76.8 Up 03:58:58 - 04:28:30 -2219
Henderson 04:14:11 -45.2 Dark Up 39.4 69.2 Up 03:59:25 - 04:28:57 -2228
Wildwood 04:14:21 -42.2 Dark Up 35.9 66.6 Up 03:59:35 - 04:29:07 -2249
Searchlight/Boulder City 04:14:12 -45.2 Dark Up 39.2 68.8 Up 03:59:26 - 04:28:58 -2285
Laughlin/Bullhead City 04:14:12 -45.5 Dark Up 39.4 68.7 Up 03:59:26 - 04:28:58 -2329
Patrick 04:14:11 -46.1 Dark Up 40.0 69.1 Up 03:59:25 - 04:28:57 -2336
Kingman/Dolan Springs 04:14:12 -45.9 Dark Up 39.8 68.9 Up 03:59:26 - 04:28:58 -2349
Mohave Valley 04:14:13 -45.5 Dark Up 39.3 68.5 Up 03:59:27 - 04:28:59 -2355
Idyllwild 04:14:19 -43.8 Dark Up 37.2 67.0 Up 03:59:33 - 04:29:05 -2370
DCO 04:14:10 -46.7 Dark Up 40.4 69.1 Up 03:59:24 - 04:28:56 -2396
Lake Havasu City 04:14:13 -45.7 Dark Up 39.3 68.2 Up 03:59:27 - 04:28:59 -2404
Parker 04:14:13 -45.8 Dark Up 39.2 68.0 Up 03:59:27 - 04:28:59 -2440
Blythe 04:14:15 -45.5 Dark Up 38.8 67.5 Up 03:59:29 - 04:29:01 -2477
Calipatria 04:14:18 -44.8 Dark Up 37.9 66.9 Up 03:59:32 - 04:29:04 -2482
Yuma 04:14:17 -45.5 Dark Up 38.4 66.8 Up 03:59:31 - 04:29:03 -2564

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 02XV93, (2018/12/14 04:11UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.1 +28:01:33  1.1 19.54 136
34Bet Aur      05:59:31.6 +44:56:51  1.9  9.41 112
40 Aur         06:06:35.1 +38:28:57  5.4  3.59 114
PPM 071509     06:20:02.3 +37:11:02  8.5  0.75 116
PPM 071518     06:20:53.6 +36:34:30  9.1  0.18 117
02XV93         06:21:45.1 +36:31:20 16.4       117
Positions are for J2000

Event circumstances last updated at 2018/10/15 20:19:53 UT

Marc W. Buie, Southwest Research Institute

RECON