RECON: TNO occultation with 00YV1

Event between 00YV1 and star TYC21293-01772-1 with event index number of 76963

Geocentric closest approach at 2017/08/25 08:51:01 UTC

J2000 position of star is 04:57:00.5 +21:55:58
Equinox of date position of star is 04:58:02.9 +21:57:31
Stellar brightness V=10.9, use SENSEUP=4
Star is 122 degrees from the moon. Moon is 15% illuminated.
TNO apparent brightness V=23.9

[RECON map]
TNO is 44.9 AU from the Sun and 45.1 AU from the Earth.
The TNO is moving 10.8 km/sec on the sky relative to the star, or, 1.2 arcsec/hr.
The 1-sigma error in the time of the event is 1236 seconds.
The 1-sigma cross-track error in the shadow position is 5818 km.
The sky-plane scale is 32734.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=218.8 km assuming a 5% albedo -- 20.3 sec chord
Diameter=89.3 km assuming a 30% albedo -- 8.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 00YV1, (2017/08/25 08:51UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:36:56.1 +16:32:36  0.8  7.36 128
Alnath         05:27:24.5 +28:37:15  1.6  9.40 114
102Iot Tau     05:04:09.1 +21:36:49  4.6  1.45 121
PPM 093881     04:55:52.8 +22:10:25  8.5  0.55 122
PPM 093908     04:57:36.8 +21:35:12  9.0  0.39 122
PPM 093924     04:58:54.3 +21:51:05 10.6  0.22 122
00YV1          04:58:03.9 +21:57:33 10.9       122
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 0.7 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 08:45:12 -29.6 Dark Down 17.3 76.2 Really Low 08:30:12 - 09:00:12 11093
Tonasket 08:45:12 -29.8 Dark Down 17.2 76.1 Really Low 08:30:12 - 09:00:12 11079
Okanogan 08:45:08 -30.2 Dark Down 17.0 75.9 Really Low 08:30:08 - 09:00:08 11062
Brewster 08:45:08 -30.5 Dark Down 16.8 75.7 Really Low 08:30:08 - 09:00:08 11051
Manson/Chelan 08:45:05 -30.7 Dark Down 16.5 75.4 Really Low 08:30:05 - 09:00:05 11048
Entiat 08:45:04 -31.0 Dark Down 16.4 75.2 Really Low 08:30:04 - 09:00:04 11036
Wenatchee 08:45:02 -31.2 Dark Down 16.3 75.1 Really Low 08:30:02 - 09:00:02 11023
Ellensburg 08:44:58 -31.7 Dark Down 16.0 74.8 Really Low 08:29:58 - 08:59:58 11003
Yakima 08:44:56 -32.1 Dark Down 15.9 74.7 Really Low 08:29:56 - 08:59:56 10978
Toppenish/White Swan 08:44:52 -32.2 Dark Down 15.9 74.7 Really Low 08:29:52 - 08:59:52 10959
Goldendale 08:44:50 -32.8 Dark Down 15.5 74.3 Really Low 08:29:50 - 08:59:50 10935
The Dalles 08:44:47 -33.1 Dark Down 15.2 74.0 Really Low 08:29:47 - 08:59:47 10931
Pasco 08:44:53 -32.2 Dark Down 16.8 75.6 Really Low 08:29:53 - 08:59:53 10914
Maupin 08:44:45 -33.5 Dark Down 15.1 73.9 Really Low 08:29:45 - 08:59:45 10901
George/Umatilla 08:44:51 -32.5 Dark Down 16.5 75.3 Really Low 08:29:51 - 08:59:51 10899
PNWRO 08:44:50 -32.4 Dark Down 16.8 75.6 Really Low 08:29:50 - 08:59:50 10891
Madras/Culver 08:44:40 -34.1 Dark Down 14.9 73.8 Really Low 08:29:40 - 08:59:40 10866
Sisters 08:44:40 -34.5 Dark Down 14.5 73.4 Really Low 08:29:40 - 08:59:40 10857
Redmond 08:44:38 -34.4 Dark Down 14.8 73.6 Really Low 08:29:38 - 08:59:38 10844
Bend 08:44:34 -34.7 Dark Down 14.6 73.5 Really Low 08:29:34 - 08:59:34 10834
Oregon Observatory 08:44:33 -34.8 Dark Down 14.5 73.3 Really Low 08:29:33 - 08:59:33 10826
La Pine/Gilchrist 08:44:33 -35.1 Dark Down 14.4 73.2 Really Low 08:29:33 - 08:59:33 10814
North Lake 08:44:31 -35.4 Dark Down 14.7 73.5 Really Low 08:29:31 - 08:59:31 10767
Chiloquin 08:44:26 -36.2 Dark Down 13.8 72.7 Really Low 08:29:26 - 08:59:26 10749
Klamath Falls 08:44:22 -36.5 Dark Down 13.7 72.7 Really Low 08:29:22 - 08:59:22 10723
Paisley 08:44:24 -35.9 Dark Down 14.8 73.6 Really Low 08:29:24 - 08:59:24 10718
Tulelake 08:44:19 -36.7 Dark Down 13.9 72.8 Really Low 08:29:19 - 08:59:19 10695
Lakeview 08:44:22 -36.3 Dark Down 14.7 73.6 Really Low 08:29:22 - 08:59:22 10676
Fall River/Burney 08:44:15 -37.6 Dark Down 13.6 72.6 Really Low 08:29:15 - 08:59:15 10628
Cedarville 08:44:17 -37.0 Dark Down 14.7 73.5 Really Low 08:29:17 - 08:59:17 10625
Susanville 08:44:09 -38.1 Dark Down 14.0 72.9 Really Low 08:29:09 - 08:59:09 10560
Greenville 08:44:07 -38.5 Dark Down 13.7 72.7 Really Low 08:29:07 - 08:59:07 10549
Gimple 08:44:08 -38.4 Dark Down 13.7 72.7 Really Low 08:29:08 - 08:59:08 10546
Quincy 08:44:06 -38.7 Dark Down 13.6 72.6 Really Low 08:29:06 - 08:59:06 10534
Portola 08:44:05 -38.7 Dark Down 13.9 72.9 Really Low 08:29:05 - 08:59:05 10510
Reno 08:44:03 -38.8 Dark Down 14.3 73.2 Really Low 08:29:03 - 08:59:03 10470
Carson City 08:44:00 -39.2 Dark Down 14.2 73.1 Really Low 08:29:00 - 08:59:00 10443
Gardnerville 08:43:58 -39.4 Dark Down 14.2 73.1 Really Low 08:28:58 - 08:58:58 10423
Yerington 08:44:00 -39.3 Dark Down 14.6 73.4 Really Low 08:29:00 - 08:59:00 10408
Hawthorne 08:43:55 -39.6 Dark Down 14.9 73.6 Really Low 08:28:55 - 08:58:55 10355
Lee Vining 08:43:51 -40.3 Dark Down 14.3 73.2 Really Low 08:28:51 - 08:58:51 10329
Tonopah 08:43:54 -39.8 Dark Down 15.8 74.3 Really Low 08:28:54 - 08:58:54 10274
Bishop 08:43:49 -40.7 Dark Down 14.7 73.4 Really Low 08:28:49 - 08:58:49 10259
Lone Pine 08:43:43 -41.4 Dark Down 14.7 73.4 Really Low 08:28:43 - 08:58:43 10189
CPSLO 08:43:36 -43.1 Dark Down 12.3 71.7 Really Low 08:28:36 - 08:58:36 10175
Beatty 08:43:46 -40.8 Dark Down 15.8 74.2 Really Low 08:28:46 - 08:58:46 10168
Indian Springs 08:43:44 -40.8 Dark Down 16.6 74.7 Really Low 08:28:44 - 08:58:44 10106
Henderson 08:43:40 -41.1 Dark Down 17.0 74.9 Really Low 08:28:40 - 08:58:40 10040
Niwot 08:44:20 -34.1 Dark Down 25.5 82.0 Low 08:29:20 - 08:59:20 10037
Wildwood 08:43:29 -43.9 Dark Down 13.5 72.5 Really Low 08:28:29 - 08:58:29 10009
Searchlight/Boulder City 08:43:36 -41.6 Dark Down 16.8 74.7 Really Low 08:28:36 - 08:58:36 9992
Laughlin/Bullhead City 08:43:34 -41.8 Dark Down 17.0 74.8 Really Low 08:28:34 - 08:58:34 9956
Patrick 08:43:38 -41.4 Dark Down 17.7 75.2 Really Low 08:28:38 - 08:58:38 9951
Kingman/Dolan Springs 08:43:36 -41.6 Dark Down 17.4 75.1 Really Low 08:28:36 - 08:58:36 9940
Mohave Valley 08:43:35 -42.1 Dark Down 17.0 74.7 Really Low 08:28:35 - 08:58:35 9933
Idyllwild 08:43:24 -43.8 Dark Down 14.9 73.3 Really Low 08:28:24 - 08:58:24 9914
DCO 08:43:36 -41.4 Dark Down 18.1 75.5 Really Low 08:28:36 - 08:58:36 9902
Lake Havasu City 08:43:32 -42.4 Dark Down 17.0 74.7 Really Low 08:28:32 - 08:58:32 9892
Parker 08:43:29 -42.7 Dark Down 17.0 74.6 Really Low 08:28:29 - 08:58:29 9862
Blythe 08:43:25 -43.3 Dark Down 16.6 74.3 Really Low 08:28:25 - 08:58:25 9829
Calipatria 08:43:21 -44.0 Dark Down 15.7 73.7 Really Low 08:28:21 - 08:58:21 9822
Yuma 08:43:19 -44.2 Dark Down 16.3 74.0 Really Low 08:28:19 - 08:58:19 9754

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 00YV1, (2017/08/25 08:51UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  7.36 128
Alnath         05:26:17.5 +28:36:24  1.6  9.40 114
102Iot Tau     05:03:05.8 +21:35:23  4.6  1.45 121
PPM 093881     04:54:49.3 +22:08:47  8.5  0.55 122
PPM 093908     04:56:33.6 +21:33:36  9.0  0.39 122
PPM 093924     04:57:50.9 +21:49:31 10.6  0.22 122
00YV1          04:57:00.5 +21:55:58 10.9       122
Positions are for J2000

Event circumstances last updated at 2017/05/13 17:32:30 UT

Marc W. Buie, Southwest Research Institute

RECON