RECON: TNO occultation with 14FB72

Event between 14FB72 and star UC4-338-074486 with event index number of 135016

Geocentric closest approach at 2018/05/06 05:27:08 UTC

J2000 position of star is 15:08:53.6 -22:29:22
Equinox of date position of star is 15:09:57.5 -22:33:31
Stellar brightness R=14.9, use SENSEUP=128
Star is 65 degrees from the moon. Moon is 67% illuminated.
TNO apparent brightness V=21.3

[RECON map]
TNO is 17.9 AU from the Sun and 16.9 AU from the Earth.
The TNO is moving 22.1 km/sec on the sky relative to the star, or, 6.5 arcsec/hr.
The 1-sigma error in the time of the event is 137 seconds.
The 1-sigma cross-track error in the shadow position is 1457 km.
The sky-plane scale is 12286.7 km/arcsec.

The TNO has an absolute magnitude Hv=8.8
Diameter=105.7 km assuming a 5% albedo -- 4.8 sec chord
Diameter=43.1 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is CENTAURR

Star training set for 14FB72, (2018/05/06 05:27UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:32.1 -26:28:16  0.9 18.72  46
7Del Sco       16:01:25.3 -22:40:21  2.3 11.87  53
PPM 263889     15:10:55.8 -24:03:18  6.5  1.51  64
PPM 263892     15:11:04.2 -22:47:23  8.2  0.35  64
PPM 263866     15:10:00.8 -22:27:36  9.1  0.10  65
14FB72         15:09:57.5 -22:33:31 14.9        64
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 12.5 km RECON observability=0.3 and success probability=14.8%

Site Site mid-time
(UT) Sun alt
(deg) Sky Moon Star alt
(deg) Star az
(deg) Target Observing Time
(UT) X-track
(km)

Niwot 05:30:05 -29.8 Dark Down 22.9 154.1 Low 05:18:12 - 05:41:59 1989

Oroville 05:30:32 -17.2 AT Down 10.2 142.9 Really Low 05:18:39 - 05:42:26 1970

Tonasket 05:30:32 -17.4 AT Down 10.4 142.9 Really Low 05:18:39 - 05:42:26 1957

Okanogan 05:30:33 -17.6 AT Down 10.6 142.7 Really Low 05:18:40 - 05:42:27 1931

Brewster 05:30:34 -17.7 AT Down 10.7 142.5 Really Low 05:18:41 - 05:42:28 1907

Manson/Chelan 05:30:35 -17.7 AT Down 10.7 142.2 Really Low 05:18:42 - 05:42:29 1881

Entiat 05:30:36 -17.9 AT Down 10.9 142.1 Really Low 05:18:42 - 05:42:29 1865

Wenatchee 05:30:36 -18.1 Dark Down 11.0 142.0 Really Low 05:18:43 - 05:42:30 1846

Pasco 05:30:35 -19.5 Dark Down 12.4 142.8 Really Low 05:18:42 - 05:42:29 1820

PNWRO 05:30:35 -19.8 Dark Down 12.7 143.0 Really Low 05:18:42 - 05:42:29 1813

Ellensburg 05:30:37 -18.3 Dark Down 11.3 141.7 Really Low 05:18:44 - 05:42:31 1812

George/Umatilla 05:30:37 -19.7 Dark Down 12.6 142.6 Really Low 05:18:43 - 05:42:30 1790

Yakima 05:30:38 -18.6 Dark Down 11.6 141.7 Really Low 05:18:45 - 05:42:32 1786

Toppenish/White Swan 05:30:38 -18.9 Dark Down 11.8 141.8 Really Low 05:18:45 - 05:42:32 1779

Goldendale 05:30:40 -19.1 Dark Down 12.1 141.4 Really Low 05:18:46 - 05:42:33 1727

The Dalles 05:30:41 -19.1 Dark Down 12.1 141.0 Really Low 05:18:47 - 05:42:34 1699

Maupin 05:30:41 -19.5 Dark Down 12.5 141.1 Really Low 05:18:48 - 05:42:35 1676

Madras/Culver 05:30:42 -19.9 Dark Down 12.9 141.0 Really Low 05:18:49 - 05:42:36 1638

Redmond 05:30:43 -20.2 Dark Down 13.1 140.9 Really Low 05:18:49 - 05:42:36 1613

Sisters 05:30:43 -20.0 Dark Down 12.9 140.6 Really Low 05:18:50 - 05:42:37 1598

Bend 05:30:43 -20.3 Dark Down 13.2 140.7 Really Low 05:18:50 - 05:42:37 1593

Oregon Observatory 05:30:44 -20.4 Dark Down 13.3 140.6 Really Low 05:18:50 - 05:42:37 1576

La Pine/Gilchrist 05:30:44 -20.5 Dark Down 13.4 140.5 Really Low 05:18:51 - 05:42:38 1560

North Lake 05:30:43 -21.1 Dark Down 14.0 140.9 Really Low 05:18:50 - 05:42:37 1555

Paisley 05:30:44 -21.7 Dark Down 14.6 141.2 Really Low 05:18:50 - 05:42:37 1533

Lakeview 05:30:43 -22.2 Dark Down 15.1 141.2 Really Low 05:18:50 - 05:42:37 1506

Chiloquin 05:30:46 -21.2 Dark Down 14.1 140.1 Really Low 05:18:53 - 05:42:40 1470

Cedarville 05:30:44 -22.8 Dark Down 15.7 141.3 Really Low 05:18:50 - 05:42:37 1468

Klamath Falls 05:30:47 -21.5 Dark Down 14.4 140.1 Really Low 05:18:53 - 05:42:40 1450

Tulelake 05:30:46 -21.8 Dark Down 14.8 140.3 Really Low 05:18:53 - 05:42:40 1444

Fall River/Burney 05:30:47 -22.6 Dark Down 15.5 140.2 Really Low 05:18:54 - 05:42:41 1384

Susanville 05:30:46 -23.4 Dark Down 16.4 140.7 Really Low 05:18:53 - 05:42:40 1371

Tonopah 05:30:40 -26.9 Dark Down 19.8 143.0 Really Low 05:18:47 - 05:42:34 1352

Reno 05:30:46 -24.5 Dark Down 17.4 141.2 Really Low 05:18:52 - 05:42:39 1345

Gimple 05:30:47 -23.5 Dark Down 16.5 140.5 Really Low 05:18:54 - 05:42:41 1342

Greenville 05:30:47 -23.5 Dark Down 16.4 140.4 Really Low 05:18:54 - 05:42:41 1339

Portola 05:30:46 -24.0 Dark Down 16.9 140.7 Really Low 05:18:53 - 05:42:40 1336

Yerington 05:30:44 -25.3 Dark Down 18.2 141.6 Really Low 05:18:51 - 05:42:38 1334

Quincy 05:30:48 -23.7 Dark Down 16.6 140.4 Really Low 05:18:54 - 05:42:41 1325

Hawthorne 05:30:43 -25.9 Dark Down 18.8 142.0 Really Low 05:18:50 - 05:42:37 1324

Carson City 05:30:46 -24.8 Dark Down 17.7 141.1 Really Low 05:18:52 - 05:42:39 1321

DCO 05:30:31 -31.2 Dark Down 24.1 145.8 Low 05:18:38 - 05:42:25 1319

Indian Springs 05:30:37 -28.8 Dark Down 21.8 144.0 Low 05:18:44 - 05:42:31 1313

Patrick 05:30:33 -30.6 Dark Down 23.6 145.3 Low 05:18:39 - 05:42:26 1309

Gardnerville 05:30:46 -25.0 Dark Down 17.9 141.1 Really Low 05:18:52 - 05:42:39 1305

Henderson 05:30:36 -29.6 Dark Down 22.5 144.5 Low 05:18:42 - 05:42:29 1305

Beatty 05:30:40 -28.1 Dark Down 21.0 143.2 Low 05:18:46 - 05:42:33 1289

Kingman/Dolan Springs 05:30:34 -30.7 Dark Down 23.6 145.1 Low 05:18:40 - 05:42:27 1285

Searchlight/Boulder City 05:30:36 -30.1 Dark Down 23.0 144.4 Low 05:18:42 - 05:42:29 1266

Lee Vining 05:30:45 -26.1 Dark Down 19.0 141.4 Really Low 05:18:52 - 05:42:39 1262

Laughlin/Bullhead City 05:30:35 -30.5 Dark Down 23.4 144.6 Low 05:18:42 - 05:42:29 1260

Bishop 05:30:44 -26.9 Dark Down 19.8 141.9 Really Low 05:18:50 - 05:42:37 1251

Mohave Valley 05:30:35 -30.7 Dark Down 23.6 144.5 Low 05:18:42 - 05:42:29 1241

Lake Havasu City 05:30:35 -31.2 Dark Down 24.1 144.6 Low 05:18:41 - 05:42:28 1222

Lone Pine 05:30:43 -27.7 Dark Down 20.6 142.0 Low 05:18:50 - 05:42:37 1210

Parker 05:30:35 -31.5 Dark Down 24.4 144.6 Low 05:18:41 - 05:42:28 1198

Blythe 05:30:36 -31.8 Dark Down 24.7 144.2 Low 05:18:42 - 05:42:29 1146

Yuma 05:30:36 -32.5 Dark Down 25.4 143.9 Low 05:18:43 - 05:42:30 1075

Calipatria 05:30:39 -31.7 Dark Down 24.6 143.3 Low 05:18:46 - 05:42:33 1066

Idyllwild 05:30:42 -30.6 Dark Down 23.5 142.4 Low 05:18:48 - 05:42:35 1058

Wildwood 05:30:47 -29.4 Dark Down 22.3 141.0 Low 05:18:53 - 05:42:40 999

CPSLO 05:30:51 -27.4 Dark Down 20.3 139.6 Low 05:18:58 - 05:42:45 997

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 14FB72, (2018/05/06 05:27UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 18.72  46
7Del Sco       16:00:20.0 -22:37:18  2.3 11.87  53
PPM 263889     15:09:51.3 -23:59:10  6.5  1.51  64
PPM 263892     15:10:00.2 -22:43:16  8.2  0.35  64
PPM 263866     15:08:57.0 -22:23:27  9.1  0.10  65
14FB72         15:08:53.6 -22:29:22 14.9        65
Positions are for J2000

Event circumstances last updated at 2018/05/11 16:03:20 UT

Marc W. Buie, Southwest Research Institute

RECON

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Niwot	05:30:05	-29.8	Dark	Down	22.9	154.1	Low	05:18:12 - 05:41:59	1989
Oroville	05:30:32	-17.2	AT	Down	10.2	142.9	Really Low	05:18:39 - 05:42:26	1970
Tonasket	05:30:32	-17.4	AT	Down	10.4	142.9	Really Low	05:18:39 - 05:42:26	1957
Okanogan	05:30:33	-17.6	AT	Down	10.6	142.7	Really Low	05:18:40 - 05:42:27	1931
Brewster	05:30:34	-17.7	AT	Down	10.7	142.5	Really Low	05:18:41 - 05:42:28	1907
Manson/Chelan	05:30:35	-17.7	AT	Down	10.7	142.2	Really Low	05:18:42 - 05:42:29	1881
Entiat	05:30:36	-17.9	AT	Down	10.9	142.1	Really Low	05:18:42 - 05:42:29	1865
Wenatchee	05:30:36	-18.1	Dark	Down	11.0	142.0	Really Low	05:18:43 - 05:42:30	1846
Pasco	05:30:35	-19.5	Dark	Down	12.4	142.8	Really Low	05:18:42 - 05:42:29	1820
PNWRO	05:30:35	-19.8	Dark	Down	12.7	143.0	Really Low	05:18:42 - 05:42:29	1813
Ellensburg	05:30:37	-18.3	Dark	Down	11.3	141.7	Really Low	05:18:44 - 05:42:31	1812
George/Umatilla	05:30:37	-19.7	Dark	Down	12.6	142.6	Really Low	05:18:43 - 05:42:30	1790
Yakima	05:30:38	-18.6	Dark	Down	11.6	141.7	Really Low	05:18:45 - 05:42:32	1786
Toppenish/White Swan	05:30:38	-18.9	Dark	Down	11.8	141.8	Really Low	05:18:45 - 05:42:32	1779
Goldendale	05:30:40	-19.1	Dark	Down	12.1	141.4	Really Low	05:18:46 - 05:42:33	1727
The Dalles	05:30:41	-19.1	Dark	Down	12.1	141.0	Really Low	05:18:47 - 05:42:34	1699
Maupin	05:30:41	-19.5	Dark	Down	12.5	141.1	Really Low	05:18:48 - 05:42:35	1676
Madras/Culver	05:30:42	-19.9	Dark	Down	12.9	141.0	Really Low	05:18:49 - 05:42:36	1638
Redmond	05:30:43	-20.2	Dark	Down	13.1	140.9	Really Low	05:18:49 - 05:42:36	1613
Sisters	05:30:43	-20.0	Dark	Down	12.9	140.6	Really Low	05:18:50 - 05:42:37	1598
Bend	05:30:43	-20.3	Dark	Down	13.2	140.7	Really Low	05:18:50 - 05:42:37	1593
Oregon Observatory	05:30:44	-20.4	Dark	Down	13.3	140.6	Really Low	05:18:50 - 05:42:37	1576
La Pine/Gilchrist	05:30:44	-20.5	Dark	Down	13.4	140.5	Really Low	05:18:51 - 05:42:38	1560
North Lake	05:30:43	-21.1	Dark	Down	14.0	140.9	Really Low	05:18:50 - 05:42:37	1555
Paisley	05:30:44	-21.7	Dark	Down	14.6	141.2	Really Low	05:18:50 - 05:42:37	1533
Lakeview	05:30:43	-22.2	Dark	Down	15.1	141.2	Really Low	05:18:50 - 05:42:37	1506
Chiloquin	05:30:46	-21.2	Dark	Down	14.1	140.1	Really Low	05:18:53 - 05:42:40	1470
Cedarville	05:30:44	-22.8	Dark	Down	15.7	141.3	Really Low	05:18:50 - 05:42:37	1468
Klamath Falls	05:30:47	-21.5	Dark	Down	14.4	140.1	Really Low	05:18:53 - 05:42:40	1450
Tulelake	05:30:46	-21.8	Dark	Down	14.8	140.3	Really Low	05:18:53 - 05:42:40	1444
Fall River/Burney	05:30:47	-22.6	Dark	Down	15.5	140.2	Really Low	05:18:54 - 05:42:41	1384
Susanville	05:30:46	-23.4	Dark	Down	16.4	140.7	Really Low	05:18:53 - 05:42:40	1371
Tonopah	05:30:40	-26.9	Dark	Down	19.8	143.0	Really Low	05:18:47 - 05:42:34	1352
Reno	05:30:46	-24.5	Dark	Down	17.4	141.2	Really Low	05:18:52 - 05:42:39	1345
Gimple	05:30:47	-23.5	Dark	Down	16.5	140.5	Really Low	05:18:54 - 05:42:41	1342
Greenville	05:30:47	-23.5	Dark	Down	16.4	140.4	Really Low	05:18:54 - 05:42:41	1339
Portola	05:30:46	-24.0	Dark	Down	16.9	140.7	Really Low	05:18:53 - 05:42:40	1336
Yerington	05:30:44	-25.3	Dark	Down	18.2	141.6	Really Low	05:18:51 - 05:42:38	1334
Quincy	05:30:48	-23.7	Dark	Down	16.6	140.4	Really Low	05:18:54 - 05:42:41	1325
Hawthorne	05:30:43	-25.9	Dark	Down	18.8	142.0	Really Low	05:18:50 - 05:42:37	1324
Carson City	05:30:46	-24.8	Dark	Down	17.7	141.1	Really Low	05:18:52 - 05:42:39	1321
DCO	05:30:31	-31.2	Dark	Down	24.1	145.8	Low	05:18:38 - 05:42:25	1319
Indian Springs	05:30:37	-28.8	Dark	Down	21.8	144.0	Low	05:18:44 - 05:42:31	1313
Patrick	05:30:33	-30.6	Dark	Down	23.6	145.3	Low	05:18:39 - 05:42:26	1309
Gardnerville	05:30:46	-25.0	Dark	Down	17.9	141.1	Really Low	05:18:52 - 05:42:39	1305
Henderson	05:30:36	-29.6	Dark	Down	22.5	144.5	Low	05:18:42 - 05:42:29	1305
Beatty	05:30:40	-28.1	Dark	Down	21.0	143.2	Low	05:18:46 - 05:42:33	1289
Kingman/Dolan Springs	05:30:34	-30.7	Dark	Down	23.6	145.1	Low	05:18:40 - 05:42:27	1285
Searchlight/Boulder City	05:30:36	-30.1	Dark	Down	23.0	144.4	Low	05:18:42 - 05:42:29	1266
Lee Vining	05:30:45	-26.1	Dark	Down	19.0	141.4	Really Low	05:18:52 - 05:42:39	1262
Laughlin/Bullhead City	05:30:35	-30.5	Dark	Down	23.4	144.6	Low	05:18:42 - 05:42:29	1260
Bishop	05:30:44	-26.9	Dark	Down	19.8	141.9	Really Low	05:18:50 - 05:42:37	1251
Mohave Valley	05:30:35	-30.7	Dark	Down	23.6	144.5	Low	05:18:42 - 05:42:29	1241
Lake Havasu City	05:30:35	-31.2	Dark	Down	24.1	144.6	Low	05:18:41 - 05:42:28	1222
Lone Pine	05:30:43	-27.7	Dark	Down	20.6	142.0	Low	05:18:50 - 05:42:37	1210
Parker	05:30:35	-31.5	Dark	Down	24.4	144.6	Low	05:18:41 - 05:42:28	1198
Blythe	05:30:36	-31.8	Dark	Down	24.7	144.2	Low	05:18:42 - 05:42:29	1146
Yuma	05:30:36	-32.5	Dark	Down	25.4	143.9	Low	05:18:43 - 05:42:30	1075
Calipatria	05:30:39	-31.7	Dark	Down	24.6	143.3	Low	05:18:46 - 05:42:33	1066
Idyllwild	05:30:42	-30.6	Dark	Down	23.5	142.4	Low	05:18:48 - 05:42:35	1058
Wildwood	05:30:47	-29.4	Dark	Down	22.3	141.0	Low	05:18:53 - 05:42:40	999
CPSLO	05:30:51	-27.4	Dark	Down	20.3	139.6	Low	05:18:58 - 05:42:45	997