RECON: TNO occultation with 11BV163

Event between 11BV163 and star GA1080:03193487 with event index number of 182294

Geocentric closest approach at 2019/02/18 07:22:25 UTC

J2000 position of star is 09:12:46.8 +18:32:32
Equinox of date position of star is 09:13:49.0 +18:27:56
Stellar brightness G=16.2, use SENSEUP=128
Star is 5 degrees from the moon. Moon is 97% illuminated.
TNO apparent brightness V=22.7

[RECON map]
TNO is 39.7 AU from the Sun and 38.8 AU from the Earth.
The TNO is moving 24.4 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 538 seconds.
The 1-sigma cross-track error in the shadow position is 4163 km.
The sky-plane scale is 28111.6 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=281.8 km assuming a 5% albedo -- 11.6 sec chord
Diameter=115.1 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 11BV163, (2019/02/18 07:22UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:23.3 +11:52:23  1.3 14.92  20
PPM 099404     09:14:42.6 +21:12:12  6.1  2.75   6
PPM 126263     09:16:55.3 +18:42:51  8.3  0.77   6
PPM 126208     09:13:28.9 +18:35:36  9.6  0.16   5
11BV163        09:13:51.3 +18:27:46 16.2         5
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 1.7 sigma about the mid-time.
The median site spacing is 21.2 km RECON observability=1.0 and success probability=8.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 07:23:03 -50.8 Dark Up 59.0 181.8 Up 07:08:03 - 07:38:03 4242
Oroville 07:23:01 -51.4 Dark Up 59.6 182.1 Up 07:08:01 - 07:38:01 4190
Tonasket 07:23:01 -51.6 Dark Up 59.8 182.1 Up 07:08:01 - 07:38:01 4169
Okanogan 07:23:01 -51.9 Dark Up 60.2 181.8 Up 07:08:01 - 07:38:01 4135
Brewster 07:23:01 -52.1 Dark Up 60.4 181.4 Up 07:08:01 - 07:38:01 4106
Manson/Chelan 07:23:02 -52.2 Dark Up 60.7 180.7 Up 07:08:02 - 07:38:02 4078
Entiat 07:23:02 -52.4 Dark Up 60.9 180.6 Up 07:08:02 - 07:38:02 4056
Wenatchee 07:23:02 -52.6 Dark Up 61.1 180.4 Up 07:08:02 - 07:38:02 4030
Ellensburg 07:23:03 -53.0 Dark Up 61.5 180.0 Up 07:08:03 - 07:38:03 3987
Pasco 07:22:57 -54.0 Dark Up 62.3 182.8 Up 07:07:57 - 07:37:57 3950
Yakima 07:23:02 -53.3 Dark Up 62.0 179.9 Up 07:08:02 - 07:38:02 3949
PNWRO 07:22:56 -54.3 Dark Up 62.5 183.3 Up 07:07:56 - 07:37:56 3932
Toppenish/White Swan 07:23:01 -53.6 Dark Up 62.2 180.3 Up 07:08:01 - 07:38:01 3932
George/Umatilla 07:22:57 -54.3 Dark Up 62.6 182.4 Up 07:07:57 - 07:37:57 3914
Goldendale 07:23:02 -54.0 Dark Up 62.7 179.4 Up 07:08:02 - 07:38:02 3870
The Dalles 07:23:02 -54.1 Dark Up 62.9 178.6 Up 07:08:02 - 07:38:02 3841
Maupin 07:23:02 -54.5 Dark Up 63.4 178.9 Up 07:08:02 - 07:38:02 3803
Niwot 07:22:05 -61.5 Dark Up 64.8 215.6 Up 07:07:05 - 07:37:05 3758
Madras/Culver 07:23:01 -55.0 Dark Up 63.9 178.7 Up 07:08:01 - 07:38:01 3750
Redmond 07:23:00 -55.3 Dark Up 64.3 178.6 Up 07:08:00 - 07:38:00 3715
Sisters 07:23:02 -55.2 Dark Up 64.2 177.7 Up 07:08:02 - 07:38:02 3708
Bend 07:23:01 -55.5 Dark Up 64.5 178.3 Up 07:08:01 - 07:38:01 3691
Oregon Observatory 07:23:01 -55.6 Dark Up 64.6 178.0 Up 07:08:01 - 07:38:01 3671
La Pine/Gilchrist 07:23:01 -55.7 Dark Up 64.8 177.8 Up 07:08:01 - 07:38:01 3650
North Lake 07:23:00 -56.3 Dark Up 65.3 179.1 Up 07:08:00 - 07:38:00 3622
Paisley 07:22:56 -56.9 Dark Up 65.8 179.9 Up 07:07:56 - 07:37:56 3578
Chiloquin 07:23:01 -56.6 Dark Up 65.9 176.9 Up 07:08:01 - 07:38:01 3534
Lakeview 07:22:56 -57.4 Dark Up 66.4 180.4 Up 07:07:56 - 07:37:56 3533
Klamath Falls 07:23:00 -57.0 Dark Up 66.3 177.0 Up 07:08:00 - 07:38:00 3502
Tulelake 07:22:59 -57.3 Dark Up 66.6 177.7 Up 07:07:59 - 07:37:59 3483
Cedarville 07:22:55 -58.1 Dark Up 67.0 180.8 Up 07:07:55 - 07:37:55 3473
Fall River/Burney 07:22:57 -58.1 Dark Up 67.5 177.8 Up 07:07:57 - 07:37:57 3396
Susanville 07:22:55 -58.9 Dark Up 68.1 179.6 Up 07:07:55 - 07:37:55 3352
Gimple 07:22:55 -59.1 Dark Up 68.4 179.1 Up 07:07:55 - 07:37:55 3320
Greenville 07:22:55 -59.1 Dark Up 68.4 178.9 Up 07:07:55 - 07:37:55 3318
Quincy 07:22:55 -59.3 Dark Up 68.6 178.9 Up 07:07:55 - 07:37:55 3298
Portola 07:22:53 -59.6 Dark Up 68.7 180.1 Up 07:07:53 - 07:37:53 3297
Reno 07:22:50 -60.0 Dark Up 69.0 181.8 Up 07:07:50 - 07:37:50 3287
Carson City 07:22:50 -60.3 Dark Up 69.3 181.9 Up 07:07:50 - 07:37:50 3253
Yerington 07:22:48 -60.7 Dark Up 69.5 183.6 Up 07:07:48 - 07:37:48 3250
Gardnerville 07:22:50 -60.6 Dark Up 69.6 182.0 Up 07:07:50 - 07:37:50 3230
Hawthorne 07:22:45 -61.3 Dark Up 70.0 185.1 Up 07:07:45 - 07:37:45 3218
Tonopah 07:22:40 -62.2 Dark Up 70.3 189.1 Up 07:07:40 - 07:37:40 3210
Lee Vining 07:22:46 -61.7 Dark Up 70.5 183.8 Up 07:07:46 - 07:37:46 3149
Bishop 07:22:44 -62.4 Dark Up 71.1 186.1 Up 07:07:44 - 07:37:44 3109
Beatty 07:22:37 -63.4 Dark Up 71.4 191.0 Up 07:07:37 - 07:37:37 3107
Indian Springs 07:22:33 -64.0 Dark Up 71.5 194.3 Up 07:07:33 - 07:37:33 3106
Henderson 07:22:30 -64.7 Dark Up 71.9 196.7 Up 07:07:30 - 07:37:30 3072
Patrick 07:22:25 -65.5 Dark Up 72.2 200.6 Up 07:07:25 - 07:37:25 3043
Lone Pine 07:22:41 -63.2 Dark Up 71.8 187.3 Up 07:07:41 - 07:37:41 3042
DCO 07:22:23 -66.0 Dark Up 72.2 203.0 Up 07:07:23 - 07:37:23 3034
Searchlight/Boulder City 07:22:28 -65.2 Dark Up 72.4 197.4 Up 07:07:28 - 07:37:28 3017
Kingman/Dolan Springs 07:22:25 -65.7 Dark Up 72.4 200.3 Up 07:07:25 - 07:37:25 3015
Laughlin/Bullhead City 07:22:27 -65.6 Dark Up 72.6 198.7 Up 07:07:27 - 07:37:27 2998
Mohave Valley 07:22:27 -65.8 Dark Up 72.8 199.0 Up 07:07:27 - 07:37:27 2971
Lake Havasu City 07:22:25 -66.3 Dark Up 73.2 200.2 Up 07:07:25 - 07:37:25 2938
Parker 07:22:24 -66.6 Dark Up 73.5 200.7 Up 07:07:24 - 07:37:24 2904
Blythe 07:22:24 -67.0 Dark Up 74.1 200.4 Up 07:07:24 - 07:37:24 2842
CPSLO 07:22:49 -63.4 Dark Up 73.2 179.4 Up 07:07:49 - 07:37:49 2840
Idyllwild 07:22:32 -66.3 Dark Up 74.5 193.2 Up 07:07:32 - 07:37:32 2791
Wildwood 07:22:39 -65.3 Dark Up 74.4 186.5 Up 07:07:39 - 07:37:39 2774
Calipatria 07:22:27 -67.2 Dark Up 74.8 197.8 Up 07:07:27 - 07:37:27 2765
Yuma 07:22:23 -67.9 Dark Up 74.9 201.4 Up 07:07:23 - 07:37:23 2748

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 11BV163, (2019/02/18 07:22UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:22.0 +11:58:02  1.3 14.92  20
PPM 099404     09:13:37.2 +21:17:00  6.1  2.75   6
PPM 126263     09:15:50.8 +18:47:41  8.3  0.77   6
PPM 126208     09:12:24.3 +18:40:22  9.6  0.16   5
11BV163        09:12:46.8 +18:32:32 16.2         5
Positions are for J2000

Event circumstances last updated at 2018/06/11 17:22:06 UT

Marc W. Buie, Southwest Research Institute

RECON