RECON: TNO occultation with 444030

Event between (444030) 04NT33 and star GA1100:16816547 with event index number of 316384

Geocentric closest approach at 2019/10/25 05:28:24 UTC

J2000 position of star is 21:44:25.4 +20:01:04
Equinox of date position of star is 21:45:20.4 +20:06:31
Stellar brightness G=16.3, use SENSEUP=128
Star is 141 degrees from the moon. Moon is 12% illuminated.
TNO apparent brightness V=20.9

[RECON map]
TNO is 39.3 AU from the Sun and 38.8 AU from the Earth.
The TNO is moving 17.7 km/sec on the sky relative to the star, or, 2.3 arcsec/hr.
The 1-sigma error in the time of the event is 115 seconds.
The 1-sigma cross-track error in the shadow position is 3999 km.
The sky-plane scale is 28141.7 km/arcsec.

The TNO has an absolute magnitude Hv=4.8
Diameter=660.7 km assuming a 5% albedo -- 37.3 sec chord
Diameter=269.7 km assuming a 30% albedo -- 15.2 sec chord
Dynamical classification is SCATEXTD

Star training set for 444030, (2019/10/25 05:28UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:06.5 +45:21:07  1.3 28.41 114
53Eps Cyg      20:47:00.8 +34:02:43  2.5 19.00 122
PPM 113638     21:50:22.5 +20:33:20  6.3  1.26 142
PPM 140632     21:47:47.8 +20:00:59  8.4  0.58 142
PPM 140559     21:44:50.4 +20:00:40  9.0  0.15 141
444030         21:45:20.9 +20:06:34 16.3       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 5.0 sigma about the mid-time.
The median site spacing is 16.0 km RECON observability=1.0 and success probability=8.2%

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

Kelowna 05:24:53 -42.9 Dark Down 52.3 228.2 Up 05:14:47 - 05:34:58 5348

Summerland 05:24:53 -42.9 Dark Down 52.6 228.1 Up 05:14:48 - 05:34:59 5343

Penticton 05:24:53 -43.0 Dark Down 52.6 228.3 Up 05:14:48 - 05:34:59 5332

Okanagan Falls 05:24:55 -43.1 Dark Down 52.7 228.5 Up 05:14:49 - 05:35:00 5320

Oliver 05:24:56 -43.2 Dark Down 52.8 228.7 Up 05:14:51 - 05:35:02 5308

Anarchist Mountain Observatory 05:24:56 -43.5 Dark Down 52.8 229.1 Up 05:14:50 - 05:35:01 5285

Oroville 05:24:57 -43.5 Dark Down 52.9 229.1 Up 05:14:52 - 05:35:03 5283

Tonasket 05:24:57 -43.6 Dark Down 53.1 229.3 Up 05:14:51 - 05:35:02 5267

Okanogan 05:24:59 -43.8 Dark Down 53.4 229.5 Up 05:14:54 - 05:35:05 5252

Manson/Chelan 05:25:02 -43.8 Dark Down 54.0 229.3 Up 05:14:57 - 05:35:08 5252

Brewster 05:25:01 -43.8 Dark Down 53.6 229.5 Up 05:14:55 - 05:35:06 5245

Wenatchee 05:25:05 -44.0 Dark Down 54.4 229.5 Up 05:15:00 - 05:35:11 5229

Ellensburg 05:25:07 -44.1 Dark Down 54.7 229.7 Up 05:15:02 - 05:35:13 5214

Yakima 05:25:10 -44.4 Dark Down 55.0 230.1 Up 05:15:05 - 05:35:16 5187

Toppenish/White Swan 05:25:10 -44.6 Dark Down 55.0 230.6 Up 05:15:05 - 05:35:16 5162

The Dalles 05:25:16 -44.7 Dark Down 56.0 230.4 Up 05:15:10 - 05:35:21 5158

Goldendale 05:25:14 -44.7 Dark Down 55.6 230.7 Up 05:15:08 - 05:35:19 5151

Maupin 05:25:18 -45.0 Dark Down 56.2 231.1 Up 05:15:12 - 05:35:23 5124

Sisters 05:25:22 -45.2 Dark Down 57.0 231.4 Up 05:15:16 - 05:35:27 5095

Madras/Culver 05:25:19 -45.3 Dark Down 56.5 231.7 Up 05:15:14 - 05:35:25 5090

Pasco 05:25:09 -45.4 Dark Down 54.4 232.4 Up 05:15:03 - 05:35:14 5078

Redmond 05:25:21 -45.5 Dark Down 56.8 232.0 Up 05:15:15 - 05:35:26 5069

Bend 05:25:23 -45.5 Dark Down 57.0 232.1 Up 05:15:17 - 05:35:28 5063

Oregon Observatory 05:25:23 -45.5 Dark Down 57.1 232.1 Up 05:15:18 - 05:35:29 5060

La Pine/Gilchrist 05:25:24 -45.6 Dark Down 57.3 232.3 Up 05:15:18 - 05:35:29 5051

PNWRO 05:25:09 -45.7 Dark Down 54.5 233.0 Up 05:15:03 - 05:35:14 5048

Chiloquin 05:25:30 -46.0 Dark Down 58.2 233.2 Up 05:15:24 - 05:35:35 5000

North Lake 05:25:25 -46.2 Dark Down 57.2 233.7 Up 05:15:20 - 05:35:31 4983

Klamath Falls 05:25:34 -46.3 Dark Down 58.3 233.8 Up 05:15:28 - 05:35:39 4973

Tulelake 05:25:33 -46.6 Dark Down 58.3 234.6 Up 05:15:28 - 05:35:39 4935

Paisley 05:25:26 -46.7 Dark Down 57.3 234.9 Up 05:15:21 - 05:35:32 4923

Lakeview 05:25:31 -47.2 Dark Down 57.5 235.8 Up 05:15:25 - 05:35:36 4877

Fall River/Burney 05:25:35 -47.1 Dark Down 58.8 235.9 Up 05:15:30 - 05:35:41 4870

Cedarville 05:25:30 -47.6 Dark Down 57.7 236.9 Up 05:15:24 - 05:35:35 4822

Greenville 05:25:41 -47.9 Dark Down 59.0 237.8 Up 05:15:36 - 05:35:47 4781

Susanville 05:25:38 -48.0 Dark Down 58.6 237.8 Up 05:15:32 - 05:35:43 4780

Gimple 05:25:40 -48.0 Dark Down 58.9 237.9 Up 05:15:35 - 05:35:46 4775

Quincy 05:25:40 -48.0 Dark Down 59.1 238.1 Up 05:15:35 - 05:35:46 4767

Portola 05:25:40 -48.4 Dark Down 58.8 238.9 Up 05:15:35 - 05:35:46 4727

Reno 05:25:39 -49.0 Dark Down 58.5 240.1 Up 05:15:33 - 05:35:44 4667

Carson City 05:25:42 -49.2 Dark Down 58.7 240.7 Up 05:15:36 - 05:35:47 4641

Gardnerville 05:25:45 -49.4 Dark Down 58.8 241.1 Up 05:15:39 - 05:35:50 4622

Yerington 05:25:41 -49.7 Dark Down 58.3 241.7 Up 05:15:36 - 05:35:47 4586

Hawthorne 05:25:42 -50.3 Dark Down 58.2 243.0 Up 05:15:36 - 05:35:47 4520

Lee Vining 05:25:47 -50.3 Dark Down 58.8 243.3 Up 05:15:41 - 05:35:52 4515

CPSLO 05:26:03 -50.6 Dark Down 61.0 245.7 Up 05:15:58 - 05:36:09 4448

Bishop 05:25:49 -51.1 Dark Down 58.5 245.0 Up 05:15:43 - 05:35:54 4427

Tonopah 05:25:42 -51.5 Dark Down 57.4 245.4 Up 05:15:37 - 05:35:48 4396

Lone Pine 05:25:50 -51.7 Dark Down 58.6 246.6 Up 05:15:44 - 05:35:55 4354

Beatty 05:25:45 -52.4 Dark Down 57.5 247.5 Up 05:15:39 - 05:35:50 4287

Wildwood 05:26:05 -52.7 Dark Down 59.9 250.0 Up 05:15:59 - 05:36:10 4226

Indian Springs 05:25:46 -53.4 Dark Down 56.8 249.2 Up 05:15:40 - 05:35:51 4194

Henderson 05:25:45 -54.1 Dark Down 56.5 250.6 Up 05:15:39 - 05:35:50 4112

Idyllwild 05:26:02 -54.2 Dark Down 58.5 252.4 Up 05:15:57 - 05:36:08 4072

Searchlight/Boulder City 05:25:49 -54.5 Dark Down 56.6 251.5 Up 05:15:44 - 05:35:55 4068

Laughlin/Bullhead City 05:25:50 -54.9 Dark Down 56.4 252.3 Up 05:15:45 - 05:35:56 4025

Mohave Valley 05:25:50 -55.1 Dark Down 56.5 252.7 Up 05:15:45 - 05:35:56 4006

Patrick 05:25:47 -55.2 Dark Down 55.8 252.6 Up 05:15:41 - 05:35:52 3996

Kingman/Dolan Springs 05:25:46 -55.2 Dark Down 56.0 252.7 Up 05:15:40 - 05:35:51 3993

Lake Havasu City 05:25:53 -55.5 Dark Down 56.4 253.5 Up 05:15:47 - 05:35:58 3962

Calipatria 05:26:01 -55.4 Dark Down 57.7 254.5 Up 05:15:56 - 05:36:07 3951

Parker 05:25:54 -55.7 Dark Down 56.5 254.0 Up 05:15:49 - 05:36:00 3937

Blythe 05:25:57 -55.8 Dark Down 56.9 254.6 Up 05:15:51 - 05:36:02 3921

Yuma 05:26:00 -56.2 Dark Down 57.1 255.9 Up 05:15:54 - 05:36:05 3861

SwRI 05:25:03 -56.9 Dark Down 48.1 254.5 Up 05:14:58 - 05:35:09 3835

George/Scottsdale 05:25:50 -57.6 Dark Down 54.6 256.7 Up 05:15:45 - 05:35:56 3749

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 444030, (2019/10/25 05:28UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 28.41 114
53Eps Cyg      20:46:13.2 +33:58:19  2.5 19.00 122
PPM 113638     21:49:26.9 +20:27:45  6.3  1.26 142
PPM 140632     21:46:52.1 +19:55:26  8.4  0.58 142
PPM 140559     21:43:54.9 +19:55:11  9.0  0.15 141
444030         21:44:25.4 +20:01:04 16.3       141
Positions are for J2000

Event circumstances last updated at 2019/08/22 20:02:54 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	05:24:53	-42.9	Dark	Down	52.3	228.2	Up	05:14:47 - 05:34:58	5348
Summerland	05:24:53	-42.9	Dark	Down	52.6	228.1	Up	05:14:48 - 05:34:59	5343
Penticton	05:24:53	-43.0	Dark	Down	52.6	228.3	Up	05:14:48 - 05:34:59	5332
Okanagan Falls	05:24:55	-43.1	Dark	Down	52.7	228.5	Up	05:14:49 - 05:35:00	5320
Oliver	05:24:56	-43.2	Dark	Down	52.8	228.7	Up	05:14:51 - 05:35:02	5308
Anarchist Mountain Observatory	05:24:56	-43.5	Dark	Down	52.8	229.1	Up	05:14:50 - 05:35:01	5285
Oroville	05:24:57	-43.5	Dark	Down	52.9	229.1	Up	05:14:52 - 05:35:03	5283
Tonasket	05:24:57	-43.6	Dark	Down	53.1	229.3	Up	05:14:51 - 05:35:02	5267
Okanogan	05:24:59	-43.8	Dark	Down	53.4	229.5	Up	05:14:54 - 05:35:05	5252
Manson/Chelan	05:25:02	-43.8	Dark	Down	54.0	229.3	Up	05:14:57 - 05:35:08	5252
Brewster	05:25:01	-43.8	Dark	Down	53.6	229.5	Up	05:14:55 - 05:35:06	5245
Wenatchee	05:25:05	-44.0	Dark	Down	54.4	229.5	Up	05:15:00 - 05:35:11	5229
Ellensburg	05:25:07	-44.1	Dark	Down	54.7	229.7	Up	05:15:02 - 05:35:13	5214
Yakima	05:25:10	-44.4	Dark	Down	55.0	230.1	Up	05:15:05 - 05:35:16	5187
Toppenish/White Swan	05:25:10	-44.6	Dark	Down	55.0	230.6	Up	05:15:05 - 05:35:16	5162
The Dalles	05:25:16	-44.7	Dark	Down	56.0	230.4	Up	05:15:10 - 05:35:21	5158
Goldendale	05:25:14	-44.7	Dark	Down	55.6	230.7	Up	05:15:08 - 05:35:19	5151
Maupin	05:25:18	-45.0	Dark	Down	56.2	231.1	Up	05:15:12 - 05:35:23	5124
Sisters	05:25:22	-45.2	Dark	Down	57.0	231.4	Up	05:15:16 - 05:35:27	5095
Madras/Culver	05:25:19	-45.3	Dark	Down	56.5	231.7	Up	05:15:14 - 05:35:25	5090
Pasco	05:25:09	-45.4	Dark	Down	54.4	232.4	Up	05:15:03 - 05:35:14	5078
Redmond	05:25:21	-45.5	Dark	Down	56.8	232.0	Up	05:15:15 - 05:35:26	5069
Bend	05:25:23	-45.5	Dark	Down	57.0	232.1	Up	05:15:17 - 05:35:28	5063
Oregon Observatory	05:25:23	-45.5	Dark	Down	57.1	232.1	Up	05:15:18 - 05:35:29	5060
La Pine/Gilchrist	05:25:24	-45.6	Dark	Down	57.3	232.3	Up	05:15:18 - 05:35:29	5051
PNWRO	05:25:09	-45.7	Dark	Down	54.5	233.0	Up	05:15:03 - 05:35:14	5048
Chiloquin	05:25:30	-46.0	Dark	Down	58.2	233.2	Up	05:15:24 - 05:35:35	5000
North Lake	05:25:25	-46.2	Dark	Down	57.2	233.7	Up	05:15:20 - 05:35:31	4983
Klamath Falls	05:25:34	-46.3	Dark	Down	58.3	233.8	Up	05:15:28 - 05:35:39	4973
Tulelake	05:25:33	-46.6	Dark	Down	58.3	234.6	Up	05:15:28 - 05:35:39	4935
Paisley	05:25:26	-46.7	Dark	Down	57.3	234.9	Up	05:15:21 - 05:35:32	4923
Lakeview	05:25:31	-47.2	Dark	Down	57.5	235.8	Up	05:15:25 - 05:35:36	4877
Fall River/Burney	05:25:35	-47.1	Dark	Down	58.8	235.9	Up	05:15:30 - 05:35:41	4870
Cedarville	05:25:30	-47.6	Dark	Down	57.7	236.9	Up	05:15:24 - 05:35:35	4822
Greenville	05:25:41	-47.9	Dark	Down	59.0	237.8	Up	05:15:36 - 05:35:47	4781
Susanville	05:25:38	-48.0	Dark	Down	58.6	237.8	Up	05:15:32 - 05:35:43	4780
Gimple	05:25:40	-48.0	Dark	Down	58.9	237.9	Up	05:15:35 - 05:35:46	4775
Quincy	05:25:40	-48.0	Dark	Down	59.1	238.1	Up	05:15:35 - 05:35:46	4767
Portola	05:25:40	-48.4	Dark	Down	58.8	238.9	Up	05:15:35 - 05:35:46	4727
Reno	05:25:39	-49.0	Dark	Down	58.5	240.1	Up	05:15:33 - 05:35:44	4667
Carson City	05:25:42	-49.2	Dark	Down	58.7	240.7	Up	05:15:36 - 05:35:47	4641
Gardnerville	05:25:45	-49.4	Dark	Down	58.8	241.1	Up	05:15:39 - 05:35:50	4622
Yerington	05:25:41	-49.7	Dark	Down	58.3	241.7	Up	05:15:36 - 05:35:47	4586
Hawthorne	05:25:42	-50.3	Dark	Down	58.2	243.0	Up	05:15:36 - 05:35:47	4520
Lee Vining	05:25:47	-50.3	Dark	Down	58.8	243.3	Up	05:15:41 - 05:35:52	4515
CPSLO	05:26:03	-50.6	Dark	Down	61.0	245.7	Up	05:15:58 - 05:36:09	4448
Bishop	05:25:49	-51.1	Dark	Down	58.5	245.0	Up	05:15:43 - 05:35:54	4427
Tonopah	05:25:42	-51.5	Dark	Down	57.4	245.4	Up	05:15:37 - 05:35:48	4396
Lone Pine	05:25:50	-51.7	Dark	Down	58.6	246.6	Up	05:15:44 - 05:35:55	4354
Beatty	05:25:45	-52.4	Dark	Down	57.5	247.5	Up	05:15:39 - 05:35:50	4287
Wildwood	05:26:05	-52.7	Dark	Down	59.9	250.0	Up	05:15:59 - 05:36:10	4226
Indian Springs	05:25:46	-53.4	Dark	Down	56.8	249.2	Up	05:15:40 - 05:35:51	4194
Henderson	05:25:45	-54.1	Dark	Down	56.5	250.6	Up	05:15:39 - 05:35:50	4112
Idyllwild	05:26:02	-54.2	Dark	Down	58.5	252.4	Up	05:15:57 - 05:36:08	4072
Searchlight/Boulder City	05:25:49	-54.5	Dark	Down	56.6	251.5	Up	05:15:44 - 05:35:55	4068
Laughlin/Bullhead City	05:25:50	-54.9	Dark	Down	56.4	252.3	Up	05:15:45 - 05:35:56	4025
Mohave Valley	05:25:50	-55.1	Dark	Down	56.5	252.7	Up	05:15:45 - 05:35:56	4006
Patrick	05:25:47	-55.2	Dark	Down	55.8	252.6	Up	05:15:41 - 05:35:52	3996
Kingman/Dolan Springs	05:25:46	-55.2	Dark	Down	56.0	252.7	Up	05:15:40 - 05:35:51	3993
Lake Havasu City	05:25:53	-55.5	Dark	Down	56.4	253.5	Up	05:15:47 - 05:35:58	3962
Calipatria	05:26:01	-55.4	Dark	Down	57.7	254.5	Up	05:15:56 - 05:36:07	3951
Parker	05:25:54	-55.7	Dark	Down	56.5	254.0	Up	05:15:49 - 05:36:00	3937
Blythe	05:25:57	-55.8	Dark	Down	56.9	254.6	Up	05:15:51 - 05:36:02	3921
Yuma	05:26:00	-56.2	Dark	Down	57.1	255.9	Up	05:15:54 - 05:36:05	3861
SwRI	05:25:03	-56.9	Dark	Down	48.1	254.5	Up	05:14:58 - 05:35:09	3835
George/Scottsdale	05:25:50	-57.6	Dark	Down	54.6	256.7	Up	05:15:45 - 05:35:56	3749