RECON: TNO occultation with 02XV93

Event between 02XV93 and star GA1260:02708689 with event index number of 174353

Geocentric closest approach at 2019/01/21 10:04:38 UTC

J2000 position of star is 06:17:37.5 +36:31:56
Equinox of date position of star is 06:18:54.4 +36:31:25
Stellar brightness G=16.3, use SENSEUP=128
Star is 33 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=20.9

[RECON map]
TNO is 38.6 AU from the Sun and 37.8 AU from the Earth.
The TNO is moving 22.4 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 179 seconds.
The 1-sigma cross-track error in the shadow position is 1381 km.
The sky-plane scale is 27378.9 km/arcsec.

The TNO has an absolute magnitude Hv=5.0
Diameter=613.8 km assuming a 5% albedo -- 27.4 sec chord
Diameter=250.6 km assuming a 30% albedo -- 11.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 02XV93, (2019/01/21 10:05UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:28.8 +27:58:43  1.1 20.33  12
34Bet Aur      06:00:55.6 +44:56:50  1.9  9.08  39
40 Aur         06:07:53.9 +38:28:45  5.4  2.93  35
PPM 071509     06:21:20.1 +37:10:28  8.5  0.81  32
PPM 071407     06:16:41.6 +36:21:00  9.9  0.48  33
PPM 071455     06:18:39.3 +36:18:06 10.7  0.23  32
02XV93         06:18:54.9 +36:31:25 16.3        32
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 16.4 km RECON observability=1.0 and success probability=5.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 10:01:55 -52.5 Dark Up 47.4 274.3 Up 09:46:55 - 10:16:55 -2873
Summerland 10:01:55 -52.7 Dark Up 47.6 274.0 Up 09:46:55 - 10:16:55 -2889
Penticton 10:01:54 -52.9 Dark Up 47.5 274.5 Up 09:46:54 - 10:16:54 -2912
Okanagan Falls 10:01:53 -53.0 Dark Up 47.5 274.7 Up 09:46:53 - 10:16:53 -2930
Oliver 10:01:53 -53.1 Dark Up 47.4 274.9 Up 09:46:53 - 10:16:53 -2945
Anarchist Mountain Observatory 10:01:52 -53.1 Dark Up 47.3 275.2 Up 09:46:52 - 10:16:52 -2954
Oroville 10:01:52 -53.2 Dark Up 47.3 275.3 Up 09:46:52 - 10:16:52 -2963
Tonasket 10:01:51 -53.4 Dark Up 47.3 275.5 Up 09:46:51 - 10:16:51 -2985
Okanogan 10:01:51 -53.7 Dark Up 47.4 275.8 Up 09:46:51 - 10:16:51 -3021
Brewster 10:01:50 -54.0 Dark Up 47.5 275.9 Up 09:46:50 - 10:16:50 -3053
Manson/Chelan 10:01:51 -54.3 Dark Up 47.7 275.9 Up 09:46:51 - 10:16:51 -3084
Entiat 10:01:50 -54.5 Dark Up 47.7 276.1 Up 09:46:50 - 10:16:50 -3107
Wenatchee 10:01:49 -54.7 Dark Up 47.8 276.3 Up 09:46:49 - 10:16:49 -3135
Ellensburg 10:01:49 -55.1 Dark Up 47.9 276.6 Up 09:46:49 - 10:16:49 -3181
Pasco 10:01:44 -54.8 Dark Up 46.8 278.3 Up 09:46:44 - 10:16:44 -3203
Niwot 10:01:04 -48.7 Dark Up 35.6 290.8 Up 09:46:04 - 10:16:04 -3211
PNWRO 10:01:43 -54.9 Dark Up 46.6 278.7 Up 09:46:43 - 10:16:43 -3218
Yakima 10:01:48 -55.4 Dark Up 47.9 277.1 Up 09:46:48 - 10:16:48 -3220
Toppenish/White Swan 10:01:47 -55.4 Dark Up 47.7 277.4 Up 09:46:47 - 10:16:47 -3235
George/Umatilla 10:01:44 -55.2 Dark Up 46.9 278.5 Up 09:46:44 - 10:16:44 -3242
Goldendale 10:01:47 -56.0 Dark Up 47.9 277.7 Up 09:46:47 - 10:16:47 -3301
The Dalles 10:01:47 -56.3 Dark Up 48.2 277.8 Up 09:46:47 - 10:16:47 -3335
Maupin 10:01:45 -56.6 Dark Up 48.0 278.3 Up 09:46:45 - 10:16:45 -3372
Madras/Culver 10:01:44 -56.9 Dark Up 48.0 278.9 Up 09:46:44 - 10:16:44 -3425
Redmond 10:01:43 -57.2 Dark Up 48.0 279.2 Up 09:46:43 - 10:16:43 -3462
Sisters 10:01:44 -57.4 Dark Up 48.3 279.0 Up 09:46:44 - 10:16:44 -3473
Bend 10:01:43 -57.4 Dark Up 48.0 279.4 Up 09:46:43 - 10:16:43 -3487
Oregon Observatory 10:01:44 -57.6 Dark Up 48.1 279.5 Up 09:46:44 - 10:16:44 -3508
La Pine/Gilchrist 10:01:43 -57.8 Dark Up 48.1 279.7 Up 09:46:43 - 10:16:43 -3530
North Lake 10:01:41 -57.7 Dark Up 47.6 280.5 Up 09:46:41 - 10:16:41 -3551
Paisley 10:01:38 -57.8 Dark Up 47.3 281.2 Up 09:46:38 - 10:16:38 -3592
Lakeview 10:01:36 -58.0 Dark Up 47.0 281.9 Up 09:46:36 - 10:16:36 -3634
Chiloquin 10:01:41 -58.7 Dark Up 48.2 280.7 Up 09:46:41 - 10:16:41 -3650
Klamath Falls 10:01:40 -58.8 Dark Up 48.1 281.1 Up 09:46:40 - 10:16:40 -3681
Cedarville 10:01:35 -58.3 Dark Up 46.8 282.7 Up 09:46:35 - 10:16:35 -3691
Tulelake 10:01:39 -58.8 Dark Up 47.8 281.6 Up 09:46:39 - 10:16:39 -3697
Fall River/Burney 10:01:37 -59.3 Dark Up 47.5 282.6 Up 09:46:37 - 10:16:37 -3783
Susanville 10:01:33 -59.2 Dark Up 46.9 283.6 Up 09:46:33 - 10:16:33 -3817
Gimple 10:01:33 -59.5 Dark Up 47.0 283.8 Up 09:46:33 - 10:16:33 -3852
Greenville 10:01:34 -59.5 Dark Up 47.0 283.7 Up 09:46:34 - 10:16:34 -3855
Portola 10:01:32 -59.4 Dark Up 46.6 284.3 Up 09:46:32 - 10:16:32 -3869
Reno 10:01:30 -59.1 Dark Up 46.0 284.8 Up 09:46:30 - 10:16:30 -3871
Quincy 10:01:33 -59.7 Dark Up 47.0 283.9 Up 09:46:33 - 10:16:33 -3875
Yerington 10:01:27 -59.0 Dark Up 45.4 285.7 Up 09:46:27 - 10:16:27 -3900
Carson City 10:01:29 -59.3 Dark Up 45.9 285.2 Up 09:46:29 - 10:16:29 -3905
Tonopah 10:01:21 -58.1 Dark Up 43.7 287.3 Up 09:46:21 - 10:16:21 -3914
Hawthorne 10:01:26 -58.9 Dark Up 44.9 286.3 Up 09:46:26 - 10:16:26 -3925
Gardnerville 10:01:28 -59.4 Dark Up 45.8 285.5 Up 09:46:28 - 10:16:28 -3927
Indian Springs 10:01:14 -57.6 Dark Up 42.1 289.2 Up 09:46:14 - 10:16:14 -3995
Lee Vining 10:01:25 -59.5 Dark Up 45.1 286.7 Up 09:46:25 - 10:16:25 -3999
Beatty 10:01:17 -58.3 Dark Up 43.0 288.5 Up 09:46:17 - 10:16:17 -4008
Henderson 10:01:12 -57.3 Dark Up 41.4 289.9 Up 09:46:12 - 10:16:12 -4017
DCO 10:01:06 -56.2 Dark Up 39.7 291.2 Up 09:46:06 - 10:16:06 -4028
Bishop 10:01:22 -59.2 Dark Up 44.4 287.5 Up 09:46:22 - 10:16:22 -4029
Patrick 10:01:08 -56.7 Dark Up 40.3 290.8 Up 09:46:08 - 10:16:08 -4029
Kingman/Dolan Springs 10:01:08 -56.9 Dark Up 40.4 290.9 Up 09:46:08 - 10:16:08 -4059
Searchlight/Boulder City 10:01:10 -57.5 Dark Up 41.2 290.4 Up 09:46:10 - 10:16:10 -4070
Laughlin/Bullhead City 10:01:09 -57.3 Dark Up 40.8 290.7 Up 09:46:09 - 10:16:09 -4083
Lone Pine 10:01:20 -59.3 Dark Up 43.9 288.3 Up 09:46:20 - 10:16:20 -4090
Mohave Valley 10:01:08 -57.4 Dark Up 40.7 290.9 Up 09:46:08 - 10:16:08 -4109
Lake Havasu City 10:01:07 -57.3 Dark Up 40.4 291.3 Up 09:46:07 - 10:16:07 -4137
Parker 10:01:06 -57.4 Dark Up 40.2 291.6 Up 09:46:06 - 10:16:06 -4170
Blythe 10:01:06 -57.8 Dark Up 40.3 291.9 Up 09:46:06 - 10:16:06 -4234
Idyllwild 10:01:11 -59.4 Dark Up 41.9 291.2 Up 09:46:11 - 10:16:11 -4314
CPSLO 10:01:23 -61.8 Dark Up 45.5 288.7 Up 09:46:23 - 10:16:23 -4321
Calipatria 10:01:07 -58.7 Dark Up 40.8 292.1 Up 09:46:07 - 10:16:07 -4322
Yuma 10:01:05 -58.1 Dark Up 39.9 292.7 Up 09:46:05 - 10:16:05 -4325
Wildwood 10:01:16 -60.7 Dark Up 43.5 290.4 Up 09:46:16 - 10:16:16 -4358

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, (2019/01/21 10:05UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1 20.33  12
34Bet Aur      05:59:31.6 +44:56:51  1.9  9.08  39
40 Aur         06:06:35.1 +38:28:57  5.4  2.93  35
PPM 071509     06:20:02.3 +37:11:02  8.5  0.81  32
PPM 071407     06:15:24.3 +36:21:27  9.9  0.48  33
PPM 071455     06:17:22.1 +36:18:36 10.7  0.23  32
02XV93         06:17:37.5 +36:31:56 16.3        32
Positions are for J2000

Event circumstances last updated at 2018/12/04 05:10:15 UT

Marc W. Buie, Southwest Research Institute

RECON