RECON: TNO occultation with 02VD130

Event between 02VD130 and star UC4-584-028273 with event index number of 92975

Geocentric closest approach at 2018/01/02 04:52:21 UTC

J2000 position of star is 06:21:55.3 +26:44:16
Equinox of date position of star is 06:23:00.4 +26:43:42
Stellar brightness R=15.8, use SENSEUP=128
Star is 10 degrees from the moon. Moon is 100% 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 24.1 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 347 seconds.
The 1-sigma cross-track error in the shadow position is 2530 km.
The sky-plane scale is 22762.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=234.4 km assuming a 5% albedo -- 9.7 sec chord
Diameter=95.7 km assuming a 30% albedo -- 4.0 sec chord
Dynamical classification is 2:1E
 
 
 
 
 
 

Star training set for 02VD130, (2018/01/02 04:52UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:24.9 +27:58:53  1.1 18.53  14
Alhena         06:38:45.1 +16:22:57  1.9 10.97   6
PPM 095919     06:25:50.3 +25:02:16  6.3  1.80   9
PPM 095804     06:21:38.4 +26:33:43  8.5  0.36  10
PPM 095841     06:22:58.6 +26:57:55  9.6  0.24  10
02VD130        06:23:02.7 +26:43:40 15.8        10
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 2.6 sigma about the mid-time.
The median site spacing is 23.4 km RECON observability=1.0 and success probability=1.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 04:54:19 -45.0 Dark Up 52.3 111.5 Up 04:39:19 - 05:09:19 9239
Tonasket 04:54:20 -45.1 Dark Up 52.4 111.2 Up 04:39:20 - 05:09:20 9216
Okanogan 04:54:20 -45.1 Dark Up 52.4 110.6 Up 04:39:20 - 05:09:20 9186
Brewster 04:54:21 -45.1 Dark Up 52.4 110.1 Up 04:39:21 - 05:09:21 9164
Manson/Chelan 04:54:23 -44.9 Dark Up 52.3 109.5 Up 04:39:23 - 05:09:23 9151
Entiat 04:54:23 -44.9 Dark Up 52.3 109.1 Up 04:39:23 - 05:09:23 9131
Wenatchee 04:54:24 -44.9 Dark Up 52.3 108.7 Up 04:39:24 - 05:09:24 9108
Ellensburg 04:54:25 -44.9 Dark Up 52.3 108.0 Up 04:39:25 - 05:09:25 9072
Yakima 04:54:27 -45.0 Dark Up 52.4 107.5 Up 04:39:27 - 05:09:27 9032
Toppenish/White Swan 04:54:27 -45.2 Dark Up 52.6 107.4 Up 04:39:27 - 05:09:27 9008
Pasco 04:54:23 -46.0 Dark Up 53.5 108.5 Up 04:39:23 - 05:09:23 8971
Goldendale 04:54:29 -45.0 Dark Up 52.5 106.3 Up 04:39:29 - 05:09:29 8962
The Dalles 04:54:30 -44.8 Dark Up 52.3 105.6 Up 04:39:30 - 05:09:30 8947
PNWRO 04:54:23 -46.3 Dark Up 53.7 108.4 Up 04:39:23 - 05:09:23 8942
George/Umatilla 04:54:25 -46.0 Dark Up 53.4 107.8 Up 04:39:25 - 05:09:25 8942
Maupin 04:54:30 -45.0 Dark Up 52.5 105.2 Up 04:39:30 - 05:09:30 8904
Madras/Culver 04:54:32 -45.1 Dark Up 52.6 104.5 Up 04:39:32 - 05:09:32 8850
Sisters 04:54:34 -44.9 Dark Up 52.4 103.7 Up 04:39:34 - 05:09:34 8827
Redmond 04:54:33 -45.1 Dark Up 52.7 104.0 Up 04:39:33 - 05:09:33 8816
Bend 04:54:34 -45.1 Dark Up 52.6 103.6 Up 04:39:34 - 05:09:34 8798
Oregon Observatory 04:54:34 -45.0 Dark Up 52.6 103.3 Up 04:39:34 - 05:09:34 8783
La Pine/Gilchrist 04:54:34 -45.0 Dark Up 52.6 102.9 Up 04:39:34 - 05:09:34 8764
North Lake 04:54:34 -45.5 Dark Up 53.1 102.9 Up 04:39:34 - 05:09:34 8708
Chiloquin 04:54:38 -45.0 Dark Up 52.6 101.2 Up 04:39:38 - 05:09:38 8661
Paisley 04:54:34 -45.9 Dark Up 53.5 102.5 Up 04:39:34 - 05:09:34 8645
Klamath Falls 04:54:38 -45.1 Dark Up 52.7 100.9 Up 04:39:38 - 05:09:38 8624
Tulelake 04:54:38 -45.4 Dark Up 52.9 100.8 Up 04:39:38 - 05:09:38 8591
Lakeview 04:54:34 -46.1 Dark Up 53.7 102.0 Up 04:39:34 - 05:09:34 8590
Cedarville 04:54:36 -46.4 Dark Up 54.0 101.3 Up 04:39:36 - 05:09:36 8519
Fall River/Burney 04:54:39 -45.6 Dark Up 53.2 99.6 Up 04:39:39 - 05:09:39 8497
Susanville 04:54:39 -46.2 Dark Up 53.8 99.4 Up 04:39:39 - 05:09:39 8416
Greenville 04:54:39 -46.0 Dark Up 53.7 98.8 Up 04:39:39 - 05:09:39 8394
Gimple 04:54:39 -46.1 Dark Up 53.7 98.9 Up 04:39:39 - 05:09:39 8392
Quincy 04:54:40 -46.1 Dark Up 53.7 98.5 Up 04:39:40 - 05:09:40 8374
Portola 04:54:39 -46.5 Dark Up 54.1 98.7 Up 04:39:39 - 05:09:39 8350
Reno 04:54:38 -47.0 Dark Up 54.6 98.9 Up 04:39:38 - 05:09:38 8309
Carson City 04:54:38 -47.1 Dark Up 54.7 98.4 Up 04:39:38 - 05:09:38 8271
Gardnerville 04:54:38 -47.1 Dark Up 54.7 98.1 Up 04:39:38 - 05:09:38 8245
Yerington 04:54:36 -47.6 Dark Up 55.2 98.6 Up 04:39:36 - 05:09:36 8237
Hawthorne 04:54:36 -48.0 Dark Up 55.7 98.4 Up 04:39:36 - 05:09:36 8178
Lee Vining 04:54:38 -47.7 Dark Up 55.4 97.2 Up 04:39:38 - 05:09:38 8130
Niwot 04:53:53 -57.6 Dark Up 65.1 114.6 Up 04:38:53 - 05:08:53 8111
Tonopah 04:54:32 -49.2 Dark Up 56.8 98.8 Up 04:39:32 - 05:09:32 8099
Bishop 04:54:37 -48.4 Dark Up 56.0 96.9 Up 04:39:37 - 05:09:37 8052
Beatty 04:54:33 -49.7 Dark Up 57.3 97.4 Up 04:39:33 - 05:09:33 7969
Lone Pine 04:54:37 -48.7 Dark Up 56.4 96.0 Up 04:39:37 - 05:09:37 7965
Indian Springs 04:54:30 -50.6 Dark Up 58.2 97.7 Up 04:39:30 - 05:09:30 7912
CPSLO 04:54:47 -46.8 Dark Up 54.4 92.4 Up 04:39:47 - 05:09:47 7888
Henderson 04:54:29 -51.2 Dark Up 58.9 97.4 Up 04:39:29 - 05:09:29 7841
Searchlight/Boulder City 04:54:29 -51.4 Dark Up 59.0 96.5 Up 04:39:29 - 05:09:29 7779
Patrick 04:54:26 -52.2 Dark Up 59.8 97.2 Up 04:39:26 - 05:09:26 7753
Laughlin/Bullhead City 04:54:28 -51.7 Dark Up 59.3 96.2 Up 04:39:28 - 05:09:28 7741
Kingman/Dolan Springs 04:54:27 -52.1 Dark Up 59.7 96.6 Up 04:39:27 - 05:09:27 7733
Wildwood 04:54:43 -48.5 Dark Up 56.1 91.9 Up 04:39:43 - 05:09:43 7713
Mohave Valley 04:54:29 -51.7 Dark Up 59.3 95.8 Up 04:39:29 - 05:09:29 7712
DCO 04:54:24 -52.8 Dark Up 60.4 97.2 Up 04:39:24 - 05:09:24 7707
Lake Havasu City 04:54:29 -52.0 Dark Up 59.6 95.3 Up 04:39:29 - 05:09:29 7664
Idyllwild 04:54:37 -50.1 Dark Up 57.7 92.5 Up 04:39:37 - 05:09:37 7633
Parker 04:54:29 -52.0 Dark Up 59.6 94.7 Up 04:39:29 - 05:09:29 7626
Blythe 04:54:30 -51.8 Dark Up 59.4 93.6 Up 04:39:30 - 05:09:30 7576
Calipatria 04:54:34 -51.1 Dark Up 58.7 92.2 Up 04:39:34 - 05:09:34 7543
Yuma 04:54:32 -51.9 Dark Up 59.4 92.0 Up 04:39:32 - 05:09:32 7478

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, (2018/01/02 04:52UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.1 +28:01:33  1.1 18.53  14
Alhena         06:37:42.8 +16:23:57  1.9 10.97   6
PPM 095919     06:24:43.7 +25:02:55  6.3  1.80   9
PPM 095804     06:20:31.0 +26:34:16  8.5  0.36  10
PPM 095841     06:21:51.1 +26:58:30  9.6  0.24  10
02VD130        06:21:55.3 +26:44:16 15.8        10
Positions are for J2000

Event circumstances last updated at 2017/05/14 18:38:32 UT

Marc W. Buie, Southwest Research Institute

RECON