RECON: TNO occultation with 02VT130

Event between 02VT130 and star UC4-571-016081 with event index number of 151419

Geocentric closest approach at 2017/10/27 11:47:59 UTC

J2000 position of star is 05:15:46.2 +24:11:53
Equinox of date position of star is 05:16:50.0 +24:12:59
Stellar brightness R=16.4, use SENSEUP=128
Star is 140 degrees from the moon. Moon is 46% illuminated.
TNO apparent brightness V=22.2

[RECON map]
TNO is 43.1 AU from the Sun and 42.4 AU from the Earth.
The TNO is moving 16.7 km/sec on the sky relative to the star, or, 2.0 arcsec/hr.
The 1-sigma error in the time of the event is 385 seconds.
The 1-sigma cross-track error in the shadow position is 2588 km.
The sky-plane scale is 30743.0 km/arcsec.

The TNO has an absolute magnitude Hv=5.8
Diameter=416.9 km assuming a 5% albedo -- 25.0 sec chord
Diameter=170.2 km assuming a 30% albedo -- 10.2 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 02VT130, (2017/10/27 11:48UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:36:56.7 +16:32:37  0.8 12.09 130
Alnath         05:27:25.2 +28:37:15  1.6  5.00 143
103 Tau        05:09:11.9 +24:17:14  5.3  1.75 139
PPM 094241     05:18:37.0 +24:01:39  7.9  0.44 141
PPM 094229     05:17:45.9 +24:08:03  9.9  0.22 141
PPM 094210     05:16:33.5 +24:11:39 10.4  0.07 140
02VT130        05:16:51.5 +24:13:01 16.4       141
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 2.3 sigma about the mid-time.
The median site spacing is 25.9 km RECON observability=1.0 and success probability=17.6%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Oroville	11:46:49	-28.4	Dark	Down	62.8	209.7	Up	11:31:49 - 12:01:49	1820
Tonasket	11:46:49	-28.5	Dark	Down	63.0	209.9	Up	11:31:49 - 12:01:49	1797
Okanogan	11:46:49	-28.7	Dark	Down	63.4	210.0	Up	11:31:49 - 12:01:49	1762
Brewster	11:46:50	-28.9	Dark	Down	63.7	209.8	Up	11:31:50 - 12:01:50	1734
Manson/Chelan	11:46:51	-29.1	Dark	Down	64.0	209.4	Up	11:31:51 - 12:01:51	1711
Entiat	11:46:51	-29.2	Dark	Down	64.2	209.4	Up	11:31:51 - 12:01:51	1689
Wenatchee	11:46:52	-29.4	Dark	Down	64.4	209.5	Up	11:31:52 - 12:01:52	1662
Ellensburg	11:46:53	-29.6	Dark	Down	64.9	209.5	Up	11:31:53 - 12:01:53	1619
Yakima	11:46:52	-29.7	Dark	Down	65.2	209.9	Up	11:31:52 - 12:01:52	1578
Toppenish/White Swan	11:46:51	-29.6	Dark	Down	65.4	210.5	Up	11:31:51 - 12:01:51	1556
Pasco	11:46:45	-28.8	Dark	Down	65.0	213.1	Up	11:31:45 - 12:01:45	1548
PNWRO	11:46:44	-28.7	Dark	Down	65.1	213.8	Up	11:31:44 - 12:01:44	1524
George/Umatilla	11:46:46	-29.0	Dark	Down	65.4	213.1	Up	11:31:46 - 12:01:46	1513
Goldendale	11:46:53	-30.1	Dark	Down	66.0	210.2	Up	11:31:53 - 12:01:53	1497
The Dalles	11:46:54	-30.3	Dark	Down	66.3	209.7	Up	11:31:54 - 12:01:54	1473
Maupin	11:46:53	-30.4	Dark	Down	66.6	210.4	Up	11:31:53 - 12:01:53	1430
Madras/Culver	11:46:53	-30.5	Dark	Down	67.1	211.0	Up	11:31:53 - 12:01:53	1373
Sisters	11:46:55	-30.9	Dark	Down	67.6	210.4	Up	11:31:55 - 12:01:55	1337
Redmond	11:46:53	-30.6	Dark	Down	67.4	211.3	Up	11:31:53 - 12:01:53	1336
Bend	11:46:54	-30.8	Dark	Down	67.7	211.3	Up	11:31:54 - 12:01:54	1313
Oregon Observatory	11:46:54	-30.9	Dark	Down	67.9	211.2	Up	11:31:54 - 12:01:54	1295
La Pine/Gilchrist	11:46:54	-31.0	Dark	Down	68.1	211.4	Up	11:31:54 - 12:01:54	1273
North Lake	11:46:51	-30.7	Dark	Down	68.2	213.2	Up	11:31:51 - 12:01:51	1229
Paisley	11:46:49	-30.5	Dark	Down	68.5	214.8	Up	11:31:49 - 12:01:49	1172
Chiloquin	11:46:55	-31.5	Dark	Down	69.1	212.1	Up	11:31:55 - 12:01:55	1155
Lakeview	11:46:48	-30.5	Dark	Down	68.8	216.0	Up	11:31:48 - 12:01:48	1120
Klamath Falls	11:46:54	-31.5	Dark	Down	69.4	212.7	Up	11:31:54 - 12:01:54	1119
Tulelake	11:46:53	-31.3	Dark	Down	69.5	213.8	Up	11:31:53 - 12:01:53	1091
Cedarville	11:46:47	-30.5	Dark	Down	69.3	217.4	Up	11:31:47 - 12:01:47	1051
Niwot	11:45:34	-19.5	Dark	Down	61.4	244.8	Up	11:30:34 - 12:00:34	1024
Fall River/Burney	11:46:52	-31.4	Dark	Down	70.2	215.4	Up	11:31:52 - 12:01:52	995
Susanville	11:46:48	-31.0	Dark	Down	70.4	218.2	Up	11:31:48 - 12:01:48	931
Gimple	11:46:49	-31.2	Dark	Down	70.7	218.2	Up	11:31:49 - 12:01:49	900
Greenville	11:46:49	-31.3	Dark	Down	70.8	218.0	Up	11:31:49 - 12:01:49	900
Quincy	11:46:49	-31.3	Dark	Down	70.9	218.3	Up	11:31:49 - 12:01:49	878
Portola	11:46:47	-31.0	Dark	Down	70.8	219.7	Up	11:31:47 - 12:01:47	867
Reno	11:46:43	-30.5	Dark	Down	70.7	221.6	Up	11:31:43 - 12:01:43	841
Carson City	11:46:43	-30.6	Dark	Down	70.9	222.4	Up	11:31:43 - 12:01:43	803
Yerington	11:46:39	-30.1	Dark	Down	70.7	224.1	Up	11:31:39 - 12:01:39	785
Gardnerville	11:46:42	-30.6	Dark	Down	71.1	222.9	Up	11:31:42 - 12:01:42	777
Hawthorne	11:46:37	-29.8	Dark	Down	70.8	226.2	Up	11:31:37 - 12:01:37	737
Tonopah	11:46:29	-28.8	Dark	Down	70.3	230.1	Up	11:31:29 - 12:01:29	695
Lee Vining	11:46:39	-30.2	Dark	Down	71.4	226.4	Up	11:31:39 - 12:01:39	674
Bishop	11:46:34	-29.7	Dark	Down	71.4	229.2	Up	11:31:34 - 12:01:34	613
Beatty	11:46:26	-28.5	Dark	Down	70.7	233.6	Up	11:31:26 - 12:01:26	573
Indian Springs	11:46:20	-27.7	Dark	Down	70.2	236.3	Up	11:31:20 - 12:01:20	544
Lone Pine	11:46:32	-29.6	Dark	Down	71.7	231.7	Up	11:31:32 - 12:01:32	533
Henderson	11:46:16	-27.2	Dark	Down	70.0	238.8	Up	11:31:16 - 12:01:16	491
Patrick	11:46:10	-26.3	Dark	Down	69.6	242.1	Up	11:31:10 - 12:01:10	432
Searchlight/Boulder City	11:46:15	-27.2	Dark	Down	70.3	240.3	Up	11:31:15 - 12:01:15	430
Kingman/Dolan Springs	11:46:11	-26.5	Dark	Down	69.8	242.3	Up	11:31:11 - 12:01:11	407
DCO	11:46:06	-25.8	Dark	Down	69.2	243.9	Up	11:31:06 - 12:01:06	405
Laughlin/Bullhead City	11:46:13	-26.9	Dark	Down	70.2	241.5	Up	11:31:13 - 12:01:13	400
CPSLO	11:46:45	-31.8	Dark	Down	74.1	229.2	Up	11:31:45 - 12:01:45	380
Mohave Valley	11:46:13	-26.9	Dark	Down	70.3	242.2	Up	11:31:13 - 12:01:13	370
Lake Havasu City	11:46:12	-26.7	Dark	Down	70.3	243.6	Up	11:31:12 - 12:01:12	329
Parker	11:46:12	-26.7	Dark	Down	70.4	244.6	Up	11:31:12 - 12:01:12	291
Wildwood	11:46:34	-30.2	Dark	Down	73.5	237.1	Up	11:31:34 - 12:01:34	257
Blythe	11:46:12	-27.0	Dark	Down	70.9	245.4	Up	11:31:12 - 12:01:12	231
Idyllwild	11:46:23	-28.7	Dark	Down	72.4	241.7	Up	11:31:23 - 12:01:23	229
Calipatria	11:46:16	-27.8	Dark	Down	71.8	245.3	Up	11:31:16 - 12:01:16	171
Yuma	11:46:12	-27.1	Dark	Down	71.3	247.9	Up	11:31:12 - 12:01:12	130

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 02VT130, (2017/10/27 11:48UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 12.09 130
Alnath         05:26:17.5 +28:36:24  1.6  5.00 143
103 Tau        05:08:06.6 +24:15:54  5.3  1.75 139
PPM 094241     05:17:31.7 +24:00:34  7.9  0.44 141
PPM 094229     05:16:40.6 +24:06:57  9.9  0.22 141
PPM 094210     05:15:28.2 +24:10:31 10.4  0.07 140
02VT130        05:15:46.2 +24:11:53 16.4       140
Positions are for J2000

Event circumstances last updated at 2017/05/23 16:14:16 UT

RECON