RECON: TNO occultation with 13HV156

Event between 13HV156 and star GA0860:04961754 with event index number of 133602

Geocentric closest approach at 2018/06/13 07:34:11 UTC

J2000 position of star is 16:40:07.0 -03:42:58
Equinox of date position of star is 16:41:05.2 -03:45:03
Stellar brightness G=15.2, use SENSEUP=128
Star is 165 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 47.8 AU from the Sun and 46.8 AU from the Earth.
The TNO is moving 24.5 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 208 seconds.
The 1-sigma cross-track error in the shadow position is 2006 km.
The sky-plane scale is 33966.9 km/arcsec.

The TNO has an absolute magnitude Hv=5.2
Diameter=554.6 km assuming a 5% albedo -- 22.6 sec chord
Diameter=226.4 km assuming a 30% albedo -- 9.2 sec chord
Dynamical classification is SCATNEAR

Star training set for 13HV156, (2018/06/13 07:34UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:32.5 -26:28:17  0.9 22.86 170
1Del Oph       16:15:18.9 -03:44:26  2.7  6.43 162
12 Oph         16:37:19.7 -02:21:46  5.8  1.68 163
PPM 199904     16:42:21.0 -04:14:56  8.4  0.59 165
PPM 199876     16:40:40.6 -03:39:16  8.7  0.14 164
13HV156        16:41:05.3 -03:45:03 15.2       165
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 4.3 sigma about the mid-time.
The median site spacing is 19.2 km RECON observability=1.0 and success probability=13.7%

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

Penticton 07:34:10 -17.1 AT Down 36.5 186.9 Up 07:19:10 - 07:49:10 -1441

Oroville 07:34:09 -17.7 AT Down 37.1 187.1 Up 07:19:09 - 07:49:09 -1480

Tonasket 07:34:09 -17.9 AT Down 37.4 187.1 Up 07:19:09 - 07:49:09 -1496

Okanogan 07:34:09 -18.2 Dark Down 37.7 186.9 Up 07:19:09 - 07:49:09 -1519

Brewster 07:34:10 -18.5 Dark Down 38.0 186.7 Up 07:19:10 - 07:49:10 -1538

Manson/Chelan 07:34:11 -18.7 Dark Down 38.2 186.3 Up 07:19:11 - 07:49:11 -1554

Entiat 07:34:11 -18.9 Dark Down 38.4 186.2 Up 07:19:11 - 07:49:11 -1570

Wenatchee 07:34:11 -19.1 Dark Down 38.7 186.1 Up 07:19:11 - 07:49:11 -1588

Ellensburg 07:34:11 -19.5 Dark Down 39.1 185.8 Up 07:19:11 - 07:49:11 -1618

Yakima 07:34:11 -19.9 Dark Down 39.5 185.9 Up 07:19:11 - 07:49:11 -1646

Toppenish/White Swan 07:34:11 -20.1 Dark Down 39.7 186.1 Up 07:19:11 - 07:49:11 -1661

Pasco 07:34:07 -20.4 Dark Down 39.8 187.7 Up 07:19:07 - 07:49:07 -1663

PNWRO 07:34:06 -20.6 Dark Down 40.0 188.0 Up 07:19:06 - 07:49:06 -1680

George/Umatilla 07:34:07 -20.7 Dark Down 40.1 187.5 Up 07:19:07 - 07:49:07 -1688

Goldendale 07:34:12 -20.7 Dark Down 40.3 185.6 Up 07:19:12 - 07:49:12 -1702

The Dalles 07:34:13 -20.8 Dark Down 40.6 185.1 Up 07:19:13 - 07:49:13 -1720

Maupin 07:34:12 -21.3 Dark Down 41.0 185.3 Up 07:19:12 - 07:49:12 -1750

Madras/Culver 07:34:12 -21.8 Dark Down 41.5 185.3 Up 07:19:12 - 07:49:12 -1790

Redmond 07:34:12 -22.2 Dark Down 41.9 185.3 Up 07:19:12 - 07:49:12 -1816

Sisters 07:34:14 -22.1 Dark Down 41.9 184.7 Up 07:19:14 - 07:49:14 -1817

Bend 07:34:13 -22.4 Dark Down 42.1 185.1 Up 07:19:13 - 07:49:13 -1833

Oregon Observatory 07:34:13 -22.5 Dark Down 42.3 184.9 Up 07:19:13 - 07:49:13 -1846

La Pine/Gilchrist 07:34:13 -22.7 Dark Down 42.5 184.9 Up 07:19:13 - 07:49:13 -1862

North Lake 07:34:11 -23.2 Dark Down 42.9 185.7 Up 07:19:11 - 07:49:11 -1892

Paisley 07:34:09 -23.8 Dark Down 43.4 186.2 Up 07:19:09 - 07:49:09 -1931

Chiloquin 07:34:14 -23.8 Dark Down 43.6 184.5 Up 07:19:14 - 07:49:14 -1948

Lakeview 07:34:09 -24.3 Dark Down 43.9 186.6 Up 07:19:09 - 07:49:09 -1969

Klamath Falls 07:34:13 -24.1 Dark Down 44.0 184.6 Up 07:19:13 - 07:49:13 -1974

Tulelake 07:34:12 -24.4 Dark Down 44.2 185.0 Up 07:19:12 - 07:49:12 -1993

Cedarville 07:34:08 -25.0 Dark Down 44.5 186.9 Up 07:19:08 - 07:49:08 -2019

Fall River/Burney 07:34:12 -25.3 Dark Down 45.1 185.2 Up 07:19:12 - 07:49:12 -2063

Niwot 07:33:17 -26.2 Dark Down 42.6 207.2 Up 07:18:17 - 07:48:17 -2064

Susanville 07:34:09 -26.0 Dark Down 45.7 186.3 Up 07:19:09 - 07:49:09 -2109

Gimple 07:34:09 -26.3 Dark Down 46.0 186.1 Up 07:19:09 - 07:49:09 -2132

Greenville 07:34:10 -26.3 Dark Down 46.0 185.9 Up 07:19:10 - 07:49:10 -2132

Quincy 07:34:10 -26.5 Dark Down 46.2 186.0 Up 07:19:10 - 07:49:10 -2148

Portola 07:34:08 -26.6 Dark Down 46.3 186.7 Up 07:19:08 - 07:49:08 -2156

Reno 07:34:06 -27.0 Dark Down 46.5 187.6 Up 07:19:06 - 07:49:06 -2174

Carson City 07:34:05 -27.3 Dark Down 46.8 187.7 Up 07:19:05 - 07:49:05 -2202

Yerington 07:34:03 -27.6 Dark Down 46.9 188.6 Up 07:19:03 - 07:49:03 -2215

Gardnerville 07:34:05 -27.6 Dark Down 47.1 187.8 Up 07:19:05 - 07:49:05 -2222

Hawthorne 07:34:01 -28.1 Dark Down 47.3 189.5 Up 07:19:01 - 07:49:01 -2250

Tonopah 07:33:56 -28.6 Dark Down 47.6 191.6 Up 07:18:56 - 07:48:56 -2281

Lee Vining 07:34:03 -28.6 Dark Down 48.0 188.9 Up 07:19:03 - 07:49:03 -2299

Bishop 07:34:00 -29.3 Dark Down 48.5 190.0 Up 07:19:00 - 07:49:00 -2344

Beatty 07:33:53 -29.8 Dark Down 48.7 192.5 Up 07:18:53 - 07:48:53 -2374

Indian Springs 07:33:50 -30.2 Dark Down 48.8 194.2 Up 07:18:50 - 07:48:50 -2396

Lone Pine 07:33:58 -30.0 Dark Down 49.2 190.7 Up 07:18:58 - 07:48:58 -2406

Henderson 07:33:47 -30.7 Dark Down 49.2 195.4 Up 07:18:47 - 07:48:47 -2437

Patrick 07:33:42 -31.4 Dark Down 49.5 197.2 Up 07:18:42 - 07:48:42 -2485

Searchlight/Boulder City 07:33:46 -31.3 Dark Down 49.7 195.6 Up 07:18:46 - 07:48:46 -2486

Kingman/Dolan Springs 07:33:42 -31.6 Dark Down 49.8 197.0 Up 07:18:42 - 07:48:42 -2505

DCO 07:33:39 -31.7 Dark Down 49.6 198.4 Up 07:18:39 - 07:48:39 -2508

Laughlin/Bullhead City 07:33:45 -31.6 Dark Down 49.9 196.2 Up 07:18:45 - 07:48:45 -2509

CPSLO 07:34:07 -31.1 Dark Down 50.8 187.0 Up 07:19:07 - 07:49:07 -2530

Mohave Valley 07:33:44 -31.9 Dark Down 50.2 196.3 Up 07:18:44 - 07:48:44 -2533

Lake Havasu City 07:33:43 -32.3 Dark Down 50.5 196.9 Up 07:18:43 - 07:48:43 -2566

Parker 07:33:43 -32.6 Dark Down 50.8 197.0 Up 07:18:43 - 07:48:43 -2596

Wildwood 07:33:59 -32.5 Dark Down 51.7 190.4 Up 07:18:59 - 07:48:59 -2623

Blythe 07:33:43 -33.2 Dark Down 51.4 196.8 Up 07:18:43 - 07:48:43 -2643

Idyllwild 07:33:51 -33.0 Dark Down 51.7 193.4 Up 07:18:51 - 07:48:51 -2644

Calipatria 07:33:47 -33.6 Dark Down 52.1 195.5 Up 07:18:47 - 07:48:47 -2691

Yuma 07:33:43 -34.1 Dark Down 52.3 197.0 Up 07:18:43 - 07:48:43 -2725

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 13HV156, (2018/06/13 07:34UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 22.86 170
1Del Oph       16:14:20.7 -03:41:42  2.7  6.43 162
12 Oph         16:36:22.0 -02:19:34  5.8  1.68 163
PPM 199904     16:41:22.5 -04:12:52  8.4  0.59 165
PPM 199876     16:39:42.4 -03:37:10  8.7  0.14 164
13HV156        16:40:07.0 -03:42:58 15.2       165
Positions are for J2000

Event circumstances last updated at 2018/06/05 16:07:49 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)
Penticton	07:34:10	-17.1	AT	Down	36.5	186.9	Up	07:19:10 - 07:49:10	-1441
Oroville	07:34:09	-17.7	AT	Down	37.1	187.1	Up	07:19:09 - 07:49:09	-1480
Tonasket	07:34:09	-17.9	AT	Down	37.4	187.1	Up	07:19:09 - 07:49:09	-1496
Okanogan	07:34:09	-18.2	Dark	Down	37.7	186.9	Up	07:19:09 - 07:49:09	-1519
Brewster	07:34:10	-18.5	Dark	Down	38.0	186.7	Up	07:19:10 - 07:49:10	-1538
Manson/Chelan	07:34:11	-18.7	Dark	Down	38.2	186.3	Up	07:19:11 - 07:49:11	-1554
Entiat	07:34:11	-18.9	Dark	Down	38.4	186.2	Up	07:19:11 - 07:49:11	-1570
Wenatchee	07:34:11	-19.1	Dark	Down	38.7	186.1	Up	07:19:11 - 07:49:11	-1588
Ellensburg	07:34:11	-19.5	Dark	Down	39.1	185.8	Up	07:19:11 - 07:49:11	-1618
Yakima	07:34:11	-19.9	Dark	Down	39.5	185.9	Up	07:19:11 - 07:49:11	-1646
Toppenish/White Swan	07:34:11	-20.1	Dark	Down	39.7	186.1	Up	07:19:11 - 07:49:11	-1661
Pasco	07:34:07	-20.4	Dark	Down	39.8	187.7	Up	07:19:07 - 07:49:07	-1663
PNWRO	07:34:06	-20.6	Dark	Down	40.0	188.0	Up	07:19:06 - 07:49:06	-1680
George/Umatilla	07:34:07	-20.7	Dark	Down	40.1	187.5	Up	07:19:07 - 07:49:07	-1688
Goldendale	07:34:12	-20.7	Dark	Down	40.3	185.6	Up	07:19:12 - 07:49:12	-1702
The Dalles	07:34:13	-20.8	Dark	Down	40.6	185.1	Up	07:19:13 - 07:49:13	-1720
Maupin	07:34:12	-21.3	Dark	Down	41.0	185.3	Up	07:19:12 - 07:49:12	-1750
Madras/Culver	07:34:12	-21.8	Dark	Down	41.5	185.3	Up	07:19:12 - 07:49:12	-1790
Redmond	07:34:12	-22.2	Dark	Down	41.9	185.3	Up	07:19:12 - 07:49:12	-1816
Sisters	07:34:14	-22.1	Dark	Down	41.9	184.7	Up	07:19:14 - 07:49:14	-1817
Bend	07:34:13	-22.4	Dark	Down	42.1	185.1	Up	07:19:13 - 07:49:13	-1833
Oregon Observatory	07:34:13	-22.5	Dark	Down	42.3	184.9	Up	07:19:13 - 07:49:13	-1846
La Pine/Gilchrist	07:34:13	-22.7	Dark	Down	42.5	184.9	Up	07:19:13 - 07:49:13	-1862
North Lake	07:34:11	-23.2	Dark	Down	42.9	185.7	Up	07:19:11 - 07:49:11	-1892
Paisley	07:34:09	-23.8	Dark	Down	43.4	186.2	Up	07:19:09 - 07:49:09	-1931
Chiloquin	07:34:14	-23.8	Dark	Down	43.6	184.5	Up	07:19:14 - 07:49:14	-1948
Lakeview	07:34:09	-24.3	Dark	Down	43.9	186.6	Up	07:19:09 - 07:49:09	-1969
Klamath Falls	07:34:13	-24.1	Dark	Down	44.0	184.6	Up	07:19:13 - 07:49:13	-1974
Tulelake	07:34:12	-24.4	Dark	Down	44.2	185.0	Up	07:19:12 - 07:49:12	-1993
Cedarville	07:34:08	-25.0	Dark	Down	44.5	186.9	Up	07:19:08 - 07:49:08	-2019
Fall River/Burney	07:34:12	-25.3	Dark	Down	45.1	185.2	Up	07:19:12 - 07:49:12	-2063
Niwot	07:33:17	-26.2	Dark	Down	42.6	207.2	Up	07:18:17 - 07:48:17	-2064
Susanville	07:34:09	-26.0	Dark	Down	45.7	186.3	Up	07:19:09 - 07:49:09	-2109
Gimple	07:34:09	-26.3	Dark	Down	46.0	186.1	Up	07:19:09 - 07:49:09	-2132
Greenville	07:34:10	-26.3	Dark	Down	46.0	185.9	Up	07:19:10 - 07:49:10	-2132
Quincy	07:34:10	-26.5	Dark	Down	46.2	186.0	Up	07:19:10 - 07:49:10	-2148
Portola	07:34:08	-26.6	Dark	Down	46.3	186.7	Up	07:19:08 - 07:49:08	-2156
Reno	07:34:06	-27.0	Dark	Down	46.5	187.6	Up	07:19:06 - 07:49:06	-2174
Carson City	07:34:05	-27.3	Dark	Down	46.8	187.7	Up	07:19:05 - 07:49:05	-2202
Yerington	07:34:03	-27.6	Dark	Down	46.9	188.6	Up	07:19:03 - 07:49:03	-2215
Gardnerville	07:34:05	-27.6	Dark	Down	47.1	187.8	Up	07:19:05 - 07:49:05	-2222
Hawthorne	07:34:01	-28.1	Dark	Down	47.3	189.5	Up	07:19:01 - 07:49:01	-2250
Tonopah	07:33:56	-28.6	Dark	Down	47.6	191.6	Up	07:18:56 - 07:48:56	-2281
Lee Vining	07:34:03	-28.6	Dark	Down	48.0	188.9	Up	07:19:03 - 07:49:03	-2299
Bishop	07:34:00	-29.3	Dark	Down	48.5	190.0	Up	07:19:00 - 07:49:00	-2344
Beatty	07:33:53	-29.8	Dark	Down	48.7	192.5	Up	07:18:53 - 07:48:53	-2374
Indian Springs	07:33:50	-30.2	Dark	Down	48.8	194.2	Up	07:18:50 - 07:48:50	-2396
Lone Pine	07:33:58	-30.0	Dark	Down	49.2	190.7	Up	07:18:58 - 07:48:58	-2406
Henderson	07:33:47	-30.7	Dark	Down	49.2	195.4	Up	07:18:47 - 07:48:47	-2437
Patrick	07:33:42	-31.4	Dark	Down	49.5	197.2	Up	07:18:42 - 07:48:42	-2485
Searchlight/Boulder City	07:33:46	-31.3	Dark	Down	49.7	195.6	Up	07:18:46 - 07:48:46	-2486
Kingman/Dolan Springs	07:33:42	-31.6	Dark	Down	49.8	197.0	Up	07:18:42 - 07:48:42	-2505
DCO	07:33:39	-31.7	Dark	Down	49.6	198.4	Up	07:18:39 - 07:48:39	-2508
Laughlin/Bullhead City	07:33:45	-31.6	Dark	Down	49.9	196.2	Up	07:18:45 - 07:48:45	-2509
CPSLO	07:34:07	-31.1	Dark	Down	50.8	187.0	Up	07:19:07 - 07:49:07	-2530
Mohave Valley	07:33:44	-31.9	Dark	Down	50.2	196.3	Up	07:18:44 - 07:48:44	-2533
Lake Havasu City	07:33:43	-32.3	Dark	Down	50.5	196.9	Up	07:18:43 - 07:48:43	-2566
Parker	07:33:43	-32.6	Dark	Down	50.8	197.0	Up	07:18:43 - 07:48:43	-2596
Wildwood	07:33:59	-32.5	Dark	Down	51.7	190.4	Up	07:18:59 - 07:48:59	-2623
Blythe	07:33:43	-33.2	Dark	Down	51.4	196.8	Up	07:18:43 - 07:48:43	-2643
Idyllwild	07:33:51	-33.0	Dark	Down	51.7	193.4	Up	07:18:51 - 07:48:51	-2644
Calipatria	07:33:47	-33.6	Dark	Down	52.1	195.5	Up	07:18:47 - 07:48:47	-2691
Yuma	07:33:43	-34.1	Dark	Down	52.3	197.0	Up	07:18:43 - 07:48:43	-2725