RECON: TNO occultation with 470443

Event between (470443) 07XV50 and star GA1220:01299123 with event index number of 169816

Geocentric closest approach at 2018/12/23 04:07:05 UTC

J2000 position of star is 04:55:21.4 +32:11:16
Equinox of date position of star is 04:56:34.9 +32:13:01
Stellar brightness G=14.8, use SENSEUP=128
Star is 24 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=21.1

[RECON map]
TNO is 46.8 AU from the Sun and 45.9 AU from the Earth.
The TNO is moving 25.2 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 181 seconds.
The 1-sigma cross-track error in the shadow position is 2886 km.
The sky-plane scale is 33298.3 km/arcsec.

The TNO has an absolute magnitude Hv=4.4
Diameter=794.4 km assuming a 5% albedo -- 31.5 sec chord
Diameter=324.3 km assuming a 30% albedo -- 12.9 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 470443, (2018/12/23 04:07UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:00.7 +16:32:45  0.8 16.29  28
3Iot Aur       04:58:13.9 +33:11:40  2.7  1.04  24
PPM 069666     04:50:32.9 +32:37:11  6.0  1.34  25
PPM 069753     04:56:41.9 +32:11:01  7.5  0.04  24
470443         04:56:35.1 +32:13:01 14.8        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 5.0 sigma about the mid-time.
The median site spacing is 21.3 km RECON observability=1.0 and success probability=8.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 04:08:41 -38.6 Dark Up 55.8 105.9 Up 03:53:41 - 04:23:41 6113
Kelowna 04:08:40 -38.8 Dark Up 56.0 106.3 Up 03:53:40 - 04:23:40 6106
Penticton 04:08:41 -38.8 Dark Up 56.0 105.6 Up 03:53:41 - 04:23:41 6079
Okanagan Falls 04:08:42 -38.8 Dark Up 56.0 105.3 Up 03:53:42 - 04:23:42 6062
Oliver 04:08:43 -38.8 Dark Up 56.1 105.1 Up 03:53:43 - 04:23:43 6047
Anarchist Mountain Observatory 04:08:43 -39.0 Dark Up 56.2 105.1 Up 03:53:43 - 04:23:43 6025
Oroville 04:08:42 -38.9 Dark Up 56.2 104.9 Up 03:53:42 - 04:23:42 6021
Tonasket 04:08:44 -39.0 Dark Up 56.3 104.5 Up 03:53:44 - 04:23:44 6000
Okanogan 04:08:44 -38.9 Dark Up 56.3 103.9 Up 03:53:44 - 04:23:44 5974
Brewster 04:08:45 -38.8 Dark Up 56.2 103.3 Up 03:53:45 - 04:23:45 5955
Manson/Chelan 04:08:47 -38.6 Dark Up 56.0 102.7 Up 03:53:47 - 04:23:47 5948
Entiat 04:08:47 -38.6 Dark Up 56.0 102.3 Up 03:53:47 - 04:23:47 5930
Wenatchee 04:08:49 -38.6 Dark Up 56.0 101.8 Up 03:53:49 - 04:23:49 5910
Ellensburg 04:08:50 -38.5 Dark Up 55.9 101.0 Up 03:53:50 - 04:23:50 5879
Yakima 04:08:50 -38.5 Dark Up 56.0 100.4 Up 03:53:50 - 04:23:50 5842
Toppenish/White Swan 04:08:51 -38.6 Dark Up 56.2 100.3 Up 03:53:51 - 04:23:51 5817
Goldendale 04:08:53 -38.4 Dark Up 56.0 99.1 Up 03:53:53 - 04:23:53 5780
The Dalles 04:08:55 -38.2 Dark Up 55.7 98.4 Up 03:53:55 - 04:23:55 5771
Pasco 04:08:48 -39.5 Dark Up 57.0 101.2 Up 03:53:48 - 04:23:48 5765
George/Umatilla 04:08:50 -39.4 Dark Up 56.9 100.5 Up 03:53:50 - 04:23:50 5741
PNWRO 04:08:49 -39.7 Dark Up 57.2 101.1 Up 03:53:49 - 04:23:49 5735
Maupin 04:08:55 -38.3 Dark Up 55.9 97.9 Up 03:53:55 - 04:23:55 5729
Madras/Culver 04:08:57 -38.3 Dark Up 55.9 97.1 Up 03:53:57 - 04:23:57 5680
Sisters 04:08:58 -38.0 Dark Up 55.6 96.2 Up 03:53:58 - 04:23:58 5664
Redmond 04:08:57 -38.3 Dark Up 55.9 96.5 Up 03:53:57 - 04:23:57 5648
Bend 04:08:59 -38.2 Dark Up 55.9 96.1 Up 03:53:59 - 04:23:59 5633
Oregon Observatory 04:08:59 -38.1 Dark Up 55.8 95.7 Up 03:53:59 - 04:23:59 5621
La Pine/Gilchrist 04:09:00 -38.1 Dark Up 55.8 95.4 Up 03:54:00 - 04:24:00 5604
North Lake 04:08:59 -38.5 Dark Up 56.2 95.2 Up 03:53:59 - 04:23:59 5543
Chiloquin 04:09:03 -37.9 Dark Up 55.6 93.5 Up 03:54:03 - 04:24:03 5513
Paisley 04:09:00 -38.8 Dark Up 56.6 94.7 Up 03:54:00 - 04:24:00 5479
Klamath Falls 04:09:04 -37.9 Dark Up 55.7 93.1 Up 03:54:04 - 04:24:04 5478
Tulelake 04:09:04 -38.2 Dark Up 55.9 92.9 Up 03:54:04 - 04:24:04 5442
Lakeview 04:09:00 -39.0 Dark Up 56.7 94.1 Up 03:54:00 - 04:24:00 5424
Cedarville 04:09:01 -39.1 Dark Up 56.9 93.2 Up 03:54:01 - 04:24:01 5356
Fall River/Burney 04:09:06 -38.3 Dark Up 56.0 91.6 Up 03:54:06 - 04:24:06 5353
Susanville 04:09:05 -38.8 Dark Up 56.6 91.2 Up 03:54:05 - 04:24:05 5266
Greenville 04:09:07 -38.6 Dark Up 56.4 90.6 Up 03:54:07 - 04:24:07 5250
Gimple 04:09:06 -38.7 Dark Up 56.4 90.6 Up 03:54:06 - 04:24:06 5247
Quincy 04:09:07 -38.6 Dark Up 56.4 90.3 Up 03:54:07 - 04:24:07 5231
Portola 04:09:06 -39.0 Dark Up 56.8 90.4 Up 03:54:06 - 04:24:06 5202
Reno 04:09:05 -39.5 Dark Up 57.3 90.4 Up 03:54:05 - 04:24:05 5153
Carson City 04:09:06 -39.5 Dark Up 57.3 89.8 Up 03:54:06 - 04:24:06 5117
Gardnerville 04:09:06 -39.5 Dark Up 57.3 89.5 Up 03:54:06 - 04:24:06 5092
Yerington 04:09:05 -40.0 Dark Up 57.8 89.9 Up 03:54:05 - 04:24:05 5076
Hawthorne 04:09:05 -40.4 Dark Up 58.2 89.5 Up 03:54:05 - 04:24:05 5012
Lee Vining 04:09:07 -40.0 Dark Up 57.8 88.3 Up 03:54:07 - 04:24:07 4974
Tonopah 04:09:02 -41.5 Dark Up 59.3 89.6 Up 03:54:02 - 04:24:02 4916
Bishop 04:09:06 -40.6 Dark Up 58.3 87.8 Up 03:54:06 - 04:24:06 4890
Lone Pine 04:09:06 -40.9 Dark Up 58.6 86.7 Up 03:54:06 - 04:24:06 4803
Beatty 04:09:03 -41.9 Dark Up 59.6 87.9 Up 03:54:03 - 04:24:03 4786
CPSLO 04:09:17 -38.8 Dark Up 56.4 83.5 Up 03:54:17 - 04:24:17 4771
Niwot 04:08:24 -50.5 Dark Up 68.2 103.4 Up 03:53:24 - 04:23:24 4749
Indian Springs 04:09:01 -42.8 Dark Up 60.5 87.9 Up 03:54:01 - 04:24:01 4715
Henderson 04:09:00 -43.3 Dark Up 61.0 87.3 Up 03:54:00 - 04:24:00 4638
Searchlight/Boulder City 04:09:00 -43.4 Dark Up 61.0 86.3 Up 03:54:00 - 04:24:00 4578
Wildwood 04:09:13 -40.4 Dark Up 57.9 82.5 Up 03:54:13 - 04:24:13 4574
Patrick 04:08:57 -44.2 Dark Up 61.9 86.8 Up 03:53:57 - 04:23:57 4536
Laughlin/Bullhead City 04:09:00 -43.7 Dark Up 61.3 86.0 Up 03:54:00 - 04:24:00 4536
Kingman/Dolan Springs 04:08:58 -44.1 Dark Up 61.7 86.3 Up 03:53:58 - 04:23:58 4520
Mohave Valley 04:09:01 -43.7 Dark Up 61.3 85.5 Up 03:54:01 - 04:24:01 4508
DCO 04:08:56 -44.8 Dark Up 62.4 86.5 Up 03:53:56 - 04:23:56 4481
Idyllwild 04:09:08 -41.9 Dark Up 59.4 82.6 Up 03:54:08 - 04:24:08 4468
Lake Havasu City 04:09:01 -43.9 Dark Up 61.4 84.9 Up 03:54:01 - 04:24:01 4459
Parker 04:09:01 -43.9 Dark Up 61.4 84.2 Up 03:54:01 - 04:24:01 4423
Blythe 04:09:03 -43.6 Dark Up 61.1 83.2 Up 03:54:03 - 04:24:03 4380
Calipatria 04:09:07 -42.9 Dark Up 60.3 82.0 Up 03:54:07 - 04:24:07 4364
Yuma 04:09:04 -43.6 Dark Up 61.0 81.5 Up 03:54:04 - 04:24:04 4288

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 470443, (2018/12/23 04:07UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 16.29  28
3Iot Aur       04:56:59.6 +33:09:58  2.7  1.04  24
PPM 069666     04:49:19.1 +32:35:16  6.0  1.34  25
PPM 069753     04:55:28.2 +32:09:17  7.5  0.04  24
470443         04:55:21.4 +32:11:16 14.8        24
Positions are for J2000

Event circumstances last updated at 2018/11/30 19:38:45 UT

Marc W. Buie, Southwest Research Institute

RECON