RECON: TNO occultation with 06QP180

Event between 06QP180 and star GA1040:00200245 with event index number of 174798

Geocentric closest approach at 2019/01/30 05:06:59 UTC

J2000 position of star is 02:05:45.8 +14:38:36
Equinox of date position of star is 02:06:47.9 +14:44:02
Stellar brightness G=15.6, use SENSEUP=128
Star is 146 degrees from the moon. Moon is 27% illuminated.
TNO apparent brightness V=24.3

[RECON map]
TNO is 26.6 AU from the Sun and 26.7 AU from the Earth.
The TNO is moving 8.1 km/sec on the sky relative to the star, or, 1.5 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 1312 km.
The sky-plane scale is 19331.6 km/arcsec.

The TNO has an absolute magnitude Hv=9.8
Diameter=66.1 km assuming a 5% albedo -- 8.2 sec chord
Diameter=27.0 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is CENTAURR

Star training set for 06QP180, (2019/01/30 05:07UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:01.1 +16:32:46  0.8 36.16 177
6Bet Ari       01:55:41.9 +20:54:02  2.6  6.71 144
19 Ari         02:14:05.9 +15:22:06  5.7  1.87 148
PPM 117935     02:06:26.3 +15:37:42  8.4  0.90 146
PPM 117921     02:05:20.4 +14:39:33  9.9  0.36 146
PPM 117939     02:06:43.5 +14:39:27 10.1  0.08 146
06QP180        02:06:47.9 +14:44:02 15.6       146
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 22.3 km RECON observability=1.0 and success probability=11.6%

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

Kelowna 05:15:29 -42.5 Dark Down 32.1 253.7 Up 05:00:29 - 05:30:29 -1929

Summerland 05:15:28 -42.3 Dark Down 32.3 253.4 Up 05:00:28 - 05:30:28 -1937

Penticton 05:15:31 -42.6 Dark Down 32.3 253.8 Up 05:00:31 - 05:30:31 -1964

Okanagan Falls 05:15:32 -42.7 Dark Down 32.3 253.9 Up 05:00:32 - 05:30:32 -1982

Oliver 05:15:33 -42.7 Dark Down 32.4 254.0 Up 05:00:33 - 05:30:33 -1997

Anarchist Mountain Observatory 05:15:36 -42.9 Dark Down 32.3 254.3 Up 05:00:36 - 05:30:36 -2011

Oroville 05:15:36 -42.9 Dark Down 32.4 254.3 Up 05:00:36 - 05:30:36 -2019

Tonasket 05:15:37 -43.0 Dark Down 32.4 254.4 Up 05:00:37 - 05:30:37 -2041

Okanogan 05:15:39 -43.1 Dark Down 32.6 254.5 Up 05:00:39 - 05:30:39 -2074

Brewster 05:15:40 -43.1 Dark Down 32.8 254.5 Up 05:00:40 - 05:30:40 -2101

Manson/Chelan 05:15:39 -42.9 Dark Down 33.1 254.3 Up 05:00:39 - 05:30:39 -2124

Entiat 05:15:39 -43.0 Dark Down 33.2 254.4 Up 05:00:39 - 05:30:39 -2145

Wenatchee 05:15:41 -43.0 Dark Down 33.3 254.5 Up 05:00:41 - 05:30:41 -2170

Ellensburg 05:15:42 -43.1 Dark Down 33.6 254.5 Up 05:00:42 - 05:30:42 -2211

Yakima 05:15:45 -43.2 Dark Down 33.7 254.8 Up 05:00:45 - 05:30:45 -2250

Toppenish/White Swan 05:15:47 -43.4 Dark Down 33.6 255.1 Up 05:00:47 - 05:30:47 -2269

Pasco 05:15:56 -44.3 Dark Down 32.8 256.2 Up 05:00:56 - 05:30:56 -2270

PNWRO 05:15:59 -44.5 Dark Down 32.7 256.6 Up 05:00:59 - 05:30:59 -2291

George/Umatilla 05:15:57 -44.3 Dark Down 33.0 256.3 Up 05:00:57 - 05:30:57 -2304

Goldendale 05:15:49 -43.4 Dark Down 34.0 255.1 Up 05:00:49 - 05:30:49 -2326

The Dalles 05:15:48 -43.2 Dark Down 34.4 254.9 Up 05:00:48 - 05:30:48 -2351

Maupin 05:15:51 -43.4 Dark Down 34.4 255.3 Up 05:00:51 - 05:30:51 -2390

Madras/Culver 05:15:55 -43.6 Dark Down 34.5 255.6 Up 05:00:55 - 05:30:55 -2444

Redmond 05:15:56 -43.7 Dark Down 34.7 255.8 Up 05:00:56 - 05:30:56 -2479

Sisters 05:15:53 -43.4 Dark Down 34.9 255.5 Up 05:00:53 - 05:30:53 -2480

Bend 05:15:56 -43.7 Dark Down 34.8 255.9 Up 05:00:56 - 05:30:56 -2502

Oregon Observatory 05:15:57 -43.6 Dark Down 34.9 255.9 Up 05:00:57 - 05:30:57 -2520

La Pine/Gilchrist 05:15:57 -43.7 Dark Down 35.0 256.0 Up 05:00:57 - 05:30:57 -2540

North Lake 05:16:04 -44.2 Dark Down 34.7 256.8 Up 05:01:04 - 05:31:04 -2578

Paisley 05:16:09 -44.7 Dark Down 34.5 257.5 Up 05:01:09 - 05:31:09 -2629

Chiloquin 05:16:02 -43.8 Dark Down 35.5 256.5 Up 05:01:02 - 05:31:02 -2653

Lakeview 05:16:13 -45.0 Dark Down 34.5 258.0 Up 05:01:13 - 05:31:13 -2678

Klamath Falls 05:16:04 -44.0 Dark Down 35.5 256.8 Up 05:01:04 - 05:31:04 -2687

Niwot 05:17:43 -56.4 Dark Down 23.1 270.0 Low 05:02:43 - 05:32:43 -2691

SwRI 05:17:43 -56.4 Dark Down 23.1 270.0 Low 05:02:43 - 05:32:43 -2703

Tulelake 05:16:07 -44.3 Dark Down 35.4 257.2 Up 05:01:07 - 05:31:07 -2711

Cedarville 05:16:18 -45.4 Dark Down 34.5 258.5 Up 05:01:18 - 05:31:18 -2742

Fall River/Burney 05:16:13 -44.6 Dark Down 35.5 257.9 Up 05:01:13 - 05:31:13 -2801

Susanville 05:16:21 -45.4 Dark Down 35.0 259.0 Up 05:01:21 - 05:31:21 -2858

Gimple 05:16:22 -45.3 Dark Down 35.3 259.0 Up 05:01:22 - 05:31:22 -2888

Greenville 05:16:21 -45.2 Dark Down 35.3 258.9 Up 05:01:21 - 05:31:21 -2889

Quincy 05:16:22 -45.3 Dark Down 35.3 259.1 Up 05:01:22 - 05:31:22 -2909

Portola 05:16:26 -45.7 Dark Down 35.0 259.5 Up 05:01:26 - 05:31:26 -2917

Reno 05:16:32 -46.3 Dark Down 34.5 260.2 Up 05:01:32 - 05:31:32 -2938

Carson City 05:16:34 -46.4 Dark Down 34.6 260.5 Up 05:01:34 - 05:31:34 -2974

Yerington 05:16:39 -46.9 Dark Down 34.1 261.1 Up 05:01:39 - 05:31:39 -2987

Gardnerville 05:16:35 -46.5 Dark Down 34.6 260.7 Up 05:01:35 - 05:31:35 -2999

Hawthorne 05:16:44 -47.5 Dark Down 33.7 261.8 Up 05:01:44 - 05:31:44 -3029

Tonopah 05:16:56 -48.7 Dark Down 32.7 263.1 Up 05:01:56 - 05:31:56 -3061

Lee Vining 05:16:46 -47.3 Dark Down 34.2 261.8 Up 05:01:46 - 05:31:46 -3092

Bishop 05:16:52 -48.0 Dark Down 33.7 262.7 Up 05:01:52 - 05:31:52 -3146

Beatty 05:17:04 -49.4 Dark Down 32.4 264.1 Up 05:02:04 - 05:32:04 -3175

Indian Springs 05:17:13 -50.4 Dark Down 31.5 265.1 Up 05:02:13 - 05:32:13 -3195

Lone Pine 05:17:00 -48.5 Dark Down 33.5 263.5 Up 05:02:00 - 05:32:00 -3220

Henderson 05:17:20 -51.1 Dark Down 31.0 265.8 Up 05:02:20 - 05:32:20 -3241

Patrick 05:17:29 -52.2 Dark Down 30.1 266.9 Up 05:02:29 - 05:32:29 -3292

Searchlight/Boulder City 05:17:22 -51.3 Dark Down 31.0 266.2 Up 05:02:22 - 05:32:22 -3300

DCO 05:17:35 -52.9 Dark Down 29.5 267.5 Low 05:02:35 - 05:32:35 -3314

Kingman/Dolan Springs 05:17:30 -52.1 Dark Down 30.3 266.9 Up 05:02:30 - 05:32:30 -3317

Laughlin/Bullhead City 05:17:27 -51.7 Dark Down 30.7 266.6 Up 05:02:27 - 05:32:27 -3326

Mohave Valley 05:17:28 -51.8 Dark Down 30.7 266.8 Up 05:02:28 - 05:32:28 -3354

CPSLO 05:16:48 -46.7 Dark Down 35.8 262.6 Up 05:01:48 - 05:31:48 -3383

Lake Havasu City 05:17:31 -52.1 Dark Down 30.5 267.2 Up 05:02:31 - 05:32:31 -3393

Parker 05:17:33 -52.2 Dark Down 30.5 267.4 Up 05:02:33 - 05:32:33 -3429

Wildwood 05:17:07 -48.7 Dark Down 34.2 264.8 Up 05:02:07 - 05:32:07 -3487

Blythe 05:17:35 -52.1 Dark Down 30.8 267.6 Up 05:02:35 - 05:32:35 -3487

Idyllwild 05:17:20 -50.4 Dark Down 32.6 266.2 Up 05:02:20 - 05:32:20 -3502

Calipatria 05:17:31 -51.5 Dark Down 31.6 267.3 Up 05:02:31 - 05:32:31 -3551

Yuma 05:17:38 -52.4 Dark Down 30.8 268.1 Up 05:02:38 - 05:32:38 -3585

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 06QP180, (2019/01/30 05:07UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 36.16 177
6Bet Ari       01:54:38.5 +20:48:27  2.6  6.71 144
19 Ari         02:13:03.4 +15:16:47  5.7  1.87 148
PPM 117935     02:05:23.9 +15:32:16  8.4  0.90 146
PPM 117921     02:04:18.2 +14:34:06  9.9  0.36 146
PPM 117939     02:05:41.4 +14:34:01 10.1  0.08 146
06QP180        02:05:45.8 +14:38:36 15.6       146
Positions are for J2000

Event circumstances last updated at 2019/01/29 03:41:22 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)
Kelowna	05:15:29	-42.5	Dark	Down	32.1	253.7	Up	05:00:29 - 05:30:29	-1929
Summerland	05:15:28	-42.3	Dark	Down	32.3	253.4	Up	05:00:28 - 05:30:28	-1937
Penticton	05:15:31	-42.6	Dark	Down	32.3	253.8	Up	05:00:31 - 05:30:31	-1964
Okanagan Falls	05:15:32	-42.7	Dark	Down	32.3	253.9	Up	05:00:32 - 05:30:32	-1982
Oliver	05:15:33	-42.7	Dark	Down	32.4	254.0	Up	05:00:33 - 05:30:33	-1997
Anarchist Mountain Observatory	05:15:36	-42.9	Dark	Down	32.3	254.3	Up	05:00:36 - 05:30:36	-2011
Oroville	05:15:36	-42.9	Dark	Down	32.4	254.3	Up	05:00:36 - 05:30:36	-2019
Tonasket	05:15:37	-43.0	Dark	Down	32.4	254.4	Up	05:00:37 - 05:30:37	-2041
Okanogan	05:15:39	-43.1	Dark	Down	32.6	254.5	Up	05:00:39 - 05:30:39	-2074
Brewster	05:15:40	-43.1	Dark	Down	32.8	254.5	Up	05:00:40 - 05:30:40	-2101
Manson/Chelan	05:15:39	-42.9	Dark	Down	33.1	254.3	Up	05:00:39 - 05:30:39	-2124
Entiat	05:15:39	-43.0	Dark	Down	33.2	254.4	Up	05:00:39 - 05:30:39	-2145
Wenatchee	05:15:41	-43.0	Dark	Down	33.3	254.5	Up	05:00:41 - 05:30:41	-2170
Ellensburg	05:15:42	-43.1	Dark	Down	33.6	254.5	Up	05:00:42 - 05:30:42	-2211
Yakima	05:15:45	-43.2	Dark	Down	33.7	254.8	Up	05:00:45 - 05:30:45	-2250
Toppenish/White Swan	05:15:47	-43.4	Dark	Down	33.6	255.1	Up	05:00:47 - 05:30:47	-2269
Pasco	05:15:56	-44.3	Dark	Down	32.8	256.2	Up	05:00:56 - 05:30:56	-2270
PNWRO	05:15:59	-44.5	Dark	Down	32.7	256.6	Up	05:00:59 - 05:30:59	-2291
George/Umatilla	05:15:57	-44.3	Dark	Down	33.0	256.3	Up	05:00:57 - 05:30:57	-2304
Goldendale	05:15:49	-43.4	Dark	Down	34.0	255.1	Up	05:00:49 - 05:30:49	-2326
The Dalles	05:15:48	-43.2	Dark	Down	34.4	254.9	Up	05:00:48 - 05:30:48	-2351
Maupin	05:15:51	-43.4	Dark	Down	34.4	255.3	Up	05:00:51 - 05:30:51	-2390
Madras/Culver	05:15:55	-43.6	Dark	Down	34.5	255.6	Up	05:00:55 - 05:30:55	-2444
Redmond	05:15:56	-43.7	Dark	Down	34.7	255.8	Up	05:00:56 - 05:30:56	-2479
Sisters	05:15:53	-43.4	Dark	Down	34.9	255.5	Up	05:00:53 - 05:30:53	-2480
Bend	05:15:56	-43.7	Dark	Down	34.8	255.9	Up	05:00:56 - 05:30:56	-2502
Oregon Observatory	05:15:57	-43.6	Dark	Down	34.9	255.9	Up	05:00:57 - 05:30:57	-2520
La Pine/Gilchrist	05:15:57	-43.7	Dark	Down	35.0	256.0	Up	05:00:57 - 05:30:57	-2540
North Lake	05:16:04	-44.2	Dark	Down	34.7	256.8	Up	05:01:04 - 05:31:04	-2578
Paisley	05:16:09	-44.7	Dark	Down	34.5	257.5	Up	05:01:09 - 05:31:09	-2629
Chiloquin	05:16:02	-43.8	Dark	Down	35.5	256.5	Up	05:01:02 - 05:31:02	-2653
Lakeview	05:16:13	-45.0	Dark	Down	34.5	258.0	Up	05:01:13 - 05:31:13	-2678
Klamath Falls	05:16:04	-44.0	Dark	Down	35.5	256.8	Up	05:01:04 - 05:31:04	-2687
Niwot	05:17:43	-56.4	Dark	Down	23.1	270.0	Low	05:02:43 - 05:32:43	-2691
SwRI	05:17:43	-56.4	Dark	Down	23.1	270.0	Low	05:02:43 - 05:32:43	-2703
Tulelake	05:16:07	-44.3	Dark	Down	35.4	257.2	Up	05:01:07 - 05:31:07	-2711
Cedarville	05:16:18	-45.4	Dark	Down	34.5	258.5	Up	05:01:18 - 05:31:18	-2742
Fall River/Burney	05:16:13	-44.6	Dark	Down	35.5	257.9	Up	05:01:13 - 05:31:13	-2801
Susanville	05:16:21	-45.4	Dark	Down	35.0	259.0	Up	05:01:21 - 05:31:21	-2858
Gimple	05:16:22	-45.3	Dark	Down	35.3	259.0	Up	05:01:22 - 05:31:22	-2888
Greenville	05:16:21	-45.2	Dark	Down	35.3	258.9	Up	05:01:21 - 05:31:21	-2889
Quincy	05:16:22	-45.3	Dark	Down	35.3	259.1	Up	05:01:22 - 05:31:22	-2909
Portola	05:16:26	-45.7	Dark	Down	35.0	259.5	Up	05:01:26 - 05:31:26	-2917
Reno	05:16:32	-46.3	Dark	Down	34.5	260.2	Up	05:01:32 - 05:31:32	-2938
Carson City	05:16:34	-46.4	Dark	Down	34.6	260.5	Up	05:01:34 - 05:31:34	-2974
Yerington	05:16:39	-46.9	Dark	Down	34.1	261.1	Up	05:01:39 - 05:31:39	-2987
Gardnerville	05:16:35	-46.5	Dark	Down	34.6	260.7	Up	05:01:35 - 05:31:35	-2999
Hawthorne	05:16:44	-47.5	Dark	Down	33.7	261.8	Up	05:01:44 - 05:31:44	-3029
Tonopah	05:16:56	-48.7	Dark	Down	32.7	263.1	Up	05:01:56 - 05:31:56	-3061
Lee Vining	05:16:46	-47.3	Dark	Down	34.2	261.8	Up	05:01:46 - 05:31:46	-3092
Bishop	05:16:52	-48.0	Dark	Down	33.7	262.7	Up	05:01:52 - 05:31:52	-3146
Beatty	05:17:04	-49.4	Dark	Down	32.4	264.1	Up	05:02:04 - 05:32:04	-3175
Indian Springs	05:17:13	-50.4	Dark	Down	31.5	265.1	Up	05:02:13 - 05:32:13	-3195
Lone Pine	05:17:00	-48.5	Dark	Down	33.5	263.5	Up	05:02:00 - 05:32:00	-3220
Henderson	05:17:20	-51.1	Dark	Down	31.0	265.8	Up	05:02:20 - 05:32:20	-3241
Patrick	05:17:29	-52.2	Dark	Down	30.1	266.9	Up	05:02:29 - 05:32:29	-3292
Searchlight/Boulder City	05:17:22	-51.3	Dark	Down	31.0	266.2	Up	05:02:22 - 05:32:22	-3300
DCO	05:17:35	-52.9	Dark	Down	29.5	267.5	Low	05:02:35 - 05:32:35	-3314
Kingman/Dolan Springs	05:17:30	-52.1	Dark	Down	30.3	266.9	Up	05:02:30 - 05:32:30	-3317
Laughlin/Bullhead City	05:17:27	-51.7	Dark	Down	30.7	266.6	Up	05:02:27 - 05:32:27	-3326
Mohave Valley	05:17:28	-51.8	Dark	Down	30.7	266.8	Up	05:02:28 - 05:32:28	-3354
CPSLO	05:16:48	-46.7	Dark	Down	35.8	262.6	Up	05:01:48 - 05:31:48	-3383
Lake Havasu City	05:17:31	-52.1	Dark	Down	30.5	267.2	Up	05:02:31 - 05:32:31	-3393
Parker	05:17:33	-52.2	Dark	Down	30.5	267.4	Up	05:02:33 - 05:32:33	-3429
Wildwood	05:17:07	-48.7	Dark	Down	34.2	264.8	Up	05:02:07 - 05:32:07	-3487
Blythe	05:17:35	-52.1	Dark	Down	30.8	267.6	Up	05:02:35 - 05:32:35	-3487
Idyllwild	05:17:20	-50.4	Dark	Down	32.6	266.2	Up	05:02:20 - 05:32:20	-3502
Calipatria	05:17:31	-51.5	Dark	Down	31.6	267.3	Up	05:02:31 - 05:32:31	-3551
Yuma	05:17:38	-52.4	Dark	Down	30.8	268.1	Up	05:02:38 - 05:32:38	-3585