RECON: TNO occultation with 07TG422

Event between 07TG422 and star GA0980:00528712 with event index number of 223158

Geocentric closest approach at 2019/11/27 11:47:46 UTC

J2000 position of star is 04:48:42.0 +09:31:32
Equinox of date position of star is 04:49:43.6 +09:33:27
Stellar brightness G=16.0, use SENSEUP=128
Star is 169 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 38.3 AU from the Sun and 37.4 AU from the Earth.
The TNO is moving 23.8 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 126 seconds.
The 1-sigma cross-track error in the shadow position is 1840 km.
The sky-plane scale is 27089.6 km/arcsec.

The TNO has an absolute magnitude Hv=6.2
Diameter=342.0 km assuming a 5% albedo -- 14.4 sec chord
Diameter=139.6 km assuming a 30% albedo -- 5.9 sec chord
Dynamical classification is SCATNEAR

Star training set for 07TG422, (2019/11/27 11:48UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:03.9 +16:32:52  0.8  7.64 173
Bellatrix      05:26:12.0 +06:21:58  1.6  9.56 164
2Pi 2Ori       04:51:41.9 +08:55:58  4.4  0.78 168
PPM 148025     04:51:01.6 +09:31:21  8.4  0.31 169
PPM 148005     04:49:53.0 +09:42:29 10.0  0.15 169
07TG422        04:49:47.5 +09:33:34 16.0       169
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 21.9 km RECON observability=1.0 and success probability=0.0%

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

Rutland 11:45:16 -35.1 Dark Down 31.8 244.2 Up 11:34:14 - 11:56:17 10467

Penticton 11:45:15 -35.3 Dark Down 32.1 244.3 Up 11:34:13 - 11:56:16 10435

Okanagan Falls 11:45:14 -35.3 Dark Down 32.2 244.3 Up 11:34:13 - 11:56:16 10419

Southern Okanagan 11:45:14 -35.4 Dark Down 32.3 244.4 Up 11:34:12 - 11:56:15 10405

Oroville 11:45:13 -35.3 Dark Down 32.3 244.7 Up 11:34:12 - 11:56:15 10384

Tonasket 11:45:13 -35.3 Dark Down 32.4 244.8 Up 11:34:11 - 11:56:14 10364

Okanogan 11:45:12 -35.5 Dark Down 32.6 244.9 Up 11:34:11 - 11:56:14 10334

Brewster 11:45:12 -35.7 Dark Down 32.9 244.9 Up 11:34:11 - 11:56:14 10309

Manson/Chelan 11:45:12 -35.9 Dark Down 33.2 244.6 Up 11:34:11 - 11:56:14 10289

Entiat 11:45:11 -36.0 Dark Down 33.3 244.7 Up 11:34:09 - 11:56:12 10269

Wenatchee 11:45:11 -36.1 Dark Down 33.5 244.8 Up 11:34:10 - 11:56:13 10247

Ellensburg 11:45:11 -36.3 Dark Down 33.8 244.8 Up 11:34:09 - 11:56:12 10209

Yakima 11:45:10 -36.4 Dark Down 34.0 245.0 Up 11:34:08 - 11:56:11 10172

Toppenish/White Swan 11:45:10 -36.3 Dark Down 34.0 245.3 Up 11:34:08 - 11:56:11 10154

Pasco 11:45:06 -35.4 Dark Down 33.2 246.5 Up 11:34:05 - 11:56:08 10150

PNWRO 11:45:06 -35.3 Dark Down 33.2 246.9 Up 11:34:04 - 11:56:07 10129

George/Umatilla 11:45:06 -35.6 Dark Down 33.5 246.5 Up 11:34:04 - 11:56:07 10119

Goldendale 11:45:09 -36.7 Dark Down 34.5 245.3 Up 11:34:08 - 11:56:11 10102

The Dalles 11:45:09 -36.9 Dark Down 34.8 245.1 Up 11:34:08 - 11:56:11 10080

Maupin 11:45:08 -36.9 Dark Down 34.9 245.4 Up 11:34:07 - 11:56:10 10043

Madras/Culver 11:45:07 -37.0 Dark Down 35.2 245.7 Up 11:34:06 - 11:56:09 9992

Sisters 11:45:07 -37.4 Dark Down 35.6 245.5 Up 11:34:06 - 11:56:09 9959

Redmond 11:45:06 -37.1 Dark Down 35.3 245.9 Up 11:34:05 - 11:56:08 9959

Bend 11:45:07 -37.2 Dark Down 35.5 245.9 Up 11:34:05 - 11:56:08 9939

Oregon Observatory 11:45:06 -37.3 Dark Down 35.7 245.9 Up 11:34:05 - 11:56:08 9922

La Pine/Gilchrist 11:45:06 -37.4 Dark Down 35.8 246.0 Up 11:34:04 - 11:56:07 9903

North Lake 11:45:04 -37.0 Dark Down 35.6 246.8 Up 11:34:02 - 11:56:05 9866

Paisley 11:45:02 -36.8 Dark Down 35.6 247.5 Up 11:34:01 - 11:56:04 9816

Chiloquin 11:45:05 -37.8 Dark Down 36.5 246.4 Up 11:34:03 - 11:56:06 9798

Lakeview 11:45:00 -36.7 Dark Down 35.6 248.0 Up 11:33:59 - 11:56:02 9770

Klamath Falls 11:45:03 -37.7 Dark Down 36.6 246.7 Up 11:34:02 - 11:56:05 9766

Tulelake 11:45:02 -37.5 Dark Down 36.5 247.2 Up 11:34:01 - 11:56:04 9742

Cedarville 11:44:58 -36.6 Dark Down 35.8 248.6 Up 11:33:57 - 11:56:00 9709

Niwot 11:44:26 -25.3 Dark Down 25.3 260.9 Low 11:33:24 - 11:55:27 9687

Fall River/Burney 11:45:01 -37.6 Dark Down 36.8 247.9 Up 11:33:59 - 11:56:02 9656

Susanville 11:44:58 -37.0 Dark Down 36.5 248.9 Up 11:33:56 - 11:55:59 9600

Gimple 11:44:58 -37.2 Dark Down 36.7 248.9 Up 11:33:56 - 11:55:59 9572

Greenville 11:44:57 -37.3 Dark Down 36.8 248.9 Up 11:33:56 - 11:55:59 9572

Quincy 11:44:57 -37.3 Dark Down 36.9 249.0 Up 11:33:56 - 11:55:59 9552

Portola 11:44:55 -36.9 Dark Down 36.6 249.5 Up 11:33:53 - 11:55:56 9543

Reno 11:44:53 -36.4 Dark Down 36.2 250.2 Up 11:33:52 - 11:55:55 9521

Carson City 11:44:53 -36.4 Dark Down 36.3 250.5 Up 11:33:52 - 11:55:55 9487

Yerington 11:44:51 -36.0 Dark Down 35.9 251.1 Up 11:33:50 - 11:55:53 9471

Gardnerville 11:44:53 -36.4 Dark Down 36.4 250.7 Up 11:33:51 - 11:55:54 9463

Hawthorne 11:44:49 -35.6 Dark Down 35.7 251.9 Up 11:33:47 - 11:55:50 9430

Tonopah 11:44:46 -34.4 Dark Down 34.8 253.3 Up 11:33:44 - 11:55:47 9393

Lee Vining 11:44:49 -35.9 Dark Down 36.2 251.9 Up 11:33:48 - 11:55:51 9371

Bishop 11:44:47 -35.4 Dark Down 35.9 252.8 Up 11:33:45 - 11:55:48 9317

Beatty 11:44:41 -34.1 Dark Down 34.8 254.4 Up 11:33:40 - 11:55:43 9283

Indian Springs 11:44:38 -33.2 Dark Down 34.0 255.4 Up 11:33:37 - 11:55:40 9258

Lone Pine 11:44:44 -35.1 Dark Down 35.8 253.6 Up 11:33:42 - 11:55:45 9244

Henderson 11:44:36 -32.6 Dark Down 33.6 256.2 Up 11:33:34 - 11:55:37 9210

Patrick 11:44:33 -31.7 Dark Down 32.9 257.4 Up 11:33:31 - 11:55:34 9156

Searchlight/Boulder City 11:44:35 -32.5 Dark Down 33.7 256.6 Up 11:33:34 - 11:55:37 9153

Kingman/Dolan Springs 11:44:33 -31.8 Dark Down 33.1 257.4 Up 11:33:32 - 11:55:35 9132

DCO 11:44:30 -31.1 Dark Down 32.4 258.1 Up 11:33:29 - 11:55:32 9131

Laughlin/Bullhead City 11:44:33 -32.2 Dark Down 33.5 257.1 Up 11:33:31 - 11:55:34 9126

Mohave Valley 11:44:33 -32.2 Dark Down 33.6 257.3 Up 11:33:31 - 11:55:34 9099

CPSLO 11:44:48 -37.2 Dark Down 38.2 252.6 Up 11:33:46 - 11:55:49 9099

Lake Havasu City 11:44:32 -32.0 Dark Down 33.5 257.7 Up 11:33:30 - 11:55:33 9061

Parker 11:44:31 -31.9 Dark Down 33.5 257.9 Up 11:33:30 - 11:55:33 9026

Wildwood 11:44:41 -35.4 Dark Down 37.0 255.0 Up 11:33:40 - 11:55:43 8990

Blythe 11:44:31 -32.1 Dark Down 33.9 258.1 Up 11:33:30 - 11:55:33 8970

Idyllwild 11:44:36 -33.9 Dark Down 35.5 256.6 Up 11:33:34 - 11:55:37 8966

Calipatria 11:44:32 -32.9 Dark Down 34.7 257.8 Up 11:33:31 - 11:55:34 8913

Yuma 11:44:29 -32.1 Dark Down 34.1 258.6 Up 11:33:28 - 11:55:31 8876

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 07TG422, (2019/11/27 11:48UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  7.64 173
Bellatrix      05:25:07.8 +06:20:58  1.6  9.56 164
2Pi 2Ori       04:50:36.7 +08:54:00  4.4  0.78 168
PPM 148025     04:49:56.1 +09:29:22  8.4  0.31 169
PPM 148005     04:48:47.5 +09:40:28 10.0  0.15 169
07TG422        04:48:42.0 +09:31:32 16.0       168
Positions are for J2000

Event circumstances last updated at 2018/09/19 17:59:29 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)
Rutland	11:45:16	-35.1	Dark	Down	31.8	244.2	Up	11:34:14 - 11:56:17	10467
Penticton	11:45:15	-35.3	Dark	Down	32.1	244.3	Up	11:34:13 - 11:56:16	10435
Okanagan Falls	11:45:14	-35.3	Dark	Down	32.2	244.3	Up	11:34:13 - 11:56:16	10419
Southern Okanagan	11:45:14	-35.4	Dark	Down	32.3	244.4	Up	11:34:12 - 11:56:15	10405
Oroville	11:45:13	-35.3	Dark	Down	32.3	244.7	Up	11:34:12 - 11:56:15	10384
Tonasket	11:45:13	-35.3	Dark	Down	32.4	244.8	Up	11:34:11 - 11:56:14	10364
Okanogan	11:45:12	-35.5	Dark	Down	32.6	244.9	Up	11:34:11 - 11:56:14	10334
Brewster	11:45:12	-35.7	Dark	Down	32.9	244.9	Up	11:34:11 - 11:56:14	10309
Manson/Chelan	11:45:12	-35.9	Dark	Down	33.2	244.6	Up	11:34:11 - 11:56:14	10289
Entiat	11:45:11	-36.0	Dark	Down	33.3	244.7	Up	11:34:09 - 11:56:12	10269
Wenatchee	11:45:11	-36.1	Dark	Down	33.5	244.8	Up	11:34:10 - 11:56:13	10247
Ellensburg	11:45:11	-36.3	Dark	Down	33.8	244.8	Up	11:34:09 - 11:56:12	10209
Yakima	11:45:10	-36.4	Dark	Down	34.0	245.0	Up	11:34:08 - 11:56:11	10172
Toppenish/White Swan	11:45:10	-36.3	Dark	Down	34.0	245.3	Up	11:34:08 - 11:56:11	10154
Pasco	11:45:06	-35.4	Dark	Down	33.2	246.5	Up	11:34:05 - 11:56:08	10150
PNWRO	11:45:06	-35.3	Dark	Down	33.2	246.9	Up	11:34:04 - 11:56:07	10129
George/Umatilla	11:45:06	-35.6	Dark	Down	33.5	246.5	Up	11:34:04 - 11:56:07	10119
Goldendale	11:45:09	-36.7	Dark	Down	34.5	245.3	Up	11:34:08 - 11:56:11	10102
The Dalles	11:45:09	-36.9	Dark	Down	34.8	245.1	Up	11:34:08 - 11:56:11	10080
Maupin	11:45:08	-36.9	Dark	Down	34.9	245.4	Up	11:34:07 - 11:56:10	10043
Madras/Culver	11:45:07	-37.0	Dark	Down	35.2	245.7	Up	11:34:06 - 11:56:09	9992
Sisters	11:45:07	-37.4	Dark	Down	35.6	245.5	Up	11:34:06 - 11:56:09	9959
Redmond	11:45:06	-37.1	Dark	Down	35.3	245.9	Up	11:34:05 - 11:56:08	9959
Bend	11:45:07	-37.2	Dark	Down	35.5	245.9	Up	11:34:05 - 11:56:08	9939
Oregon Observatory	11:45:06	-37.3	Dark	Down	35.7	245.9	Up	11:34:05 - 11:56:08	9922
La Pine/Gilchrist	11:45:06	-37.4	Dark	Down	35.8	246.0	Up	11:34:04 - 11:56:07	9903
North Lake	11:45:04	-37.0	Dark	Down	35.6	246.8	Up	11:34:02 - 11:56:05	9866
Paisley	11:45:02	-36.8	Dark	Down	35.6	247.5	Up	11:34:01 - 11:56:04	9816
Chiloquin	11:45:05	-37.8	Dark	Down	36.5	246.4	Up	11:34:03 - 11:56:06	9798
Lakeview	11:45:00	-36.7	Dark	Down	35.6	248.0	Up	11:33:59 - 11:56:02	9770
Klamath Falls	11:45:03	-37.7	Dark	Down	36.6	246.7	Up	11:34:02 - 11:56:05	9766
Tulelake	11:45:02	-37.5	Dark	Down	36.5	247.2	Up	11:34:01 - 11:56:04	9742
Cedarville	11:44:58	-36.6	Dark	Down	35.8	248.6	Up	11:33:57 - 11:56:00	9709
Niwot	11:44:26	-25.3	Dark	Down	25.3	260.9	Low	11:33:24 - 11:55:27	9687
Fall River/Burney	11:45:01	-37.6	Dark	Down	36.8	247.9	Up	11:33:59 - 11:56:02	9656
Susanville	11:44:58	-37.0	Dark	Down	36.5	248.9	Up	11:33:56 - 11:55:59	9600
Gimple	11:44:58	-37.2	Dark	Down	36.7	248.9	Up	11:33:56 - 11:55:59	9572
Greenville	11:44:57	-37.3	Dark	Down	36.8	248.9	Up	11:33:56 - 11:55:59	9572
Quincy	11:44:57	-37.3	Dark	Down	36.9	249.0	Up	11:33:56 - 11:55:59	9552
Portola	11:44:55	-36.9	Dark	Down	36.6	249.5	Up	11:33:53 - 11:55:56	9543
Reno	11:44:53	-36.4	Dark	Down	36.2	250.2	Up	11:33:52 - 11:55:55	9521
Carson City	11:44:53	-36.4	Dark	Down	36.3	250.5	Up	11:33:52 - 11:55:55	9487
Yerington	11:44:51	-36.0	Dark	Down	35.9	251.1	Up	11:33:50 - 11:55:53	9471
Gardnerville	11:44:53	-36.4	Dark	Down	36.4	250.7	Up	11:33:51 - 11:55:54	9463
Hawthorne	11:44:49	-35.6	Dark	Down	35.7	251.9	Up	11:33:47 - 11:55:50	9430
Tonopah	11:44:46	-34.4	Dark	Down	34.8	253.3	Up	11:33:44 - 11:55:47	9393
Lee Vining	11:44:49	-35.9	Dark	Down	36.2	251.9	Up	11:33:48 - 11:55:51	9371
Bishop	11:44:47	-35.4	Dark	Down	35.9	252.8	Up	11:33:45 - 11:55:48	9317
Beatty	11:44:41	-34.1	Dark	Down	34.8	254.4	Up	11:33:40 - 11:55:43	9283
Indian Springs	11:44:38	-33.2	Dark	Down	34.0	255.4	Up	11:33:37 - 11:55:40	9258
Lone Pine	11:44:44	-35.1	Dark	Down	35.8	253.6	Up	11:33:42 - 11:55:45	9244
Henderson	11:44:36	-32.6	Dark	Down	33.6	256.2	Up	11:33:34 - 11:55:37	9210
Patrick	11:44:33	-31.7	Dark	Down	32.9	257.4	Up	11:33:31 - 11:55:34	9156
Searchlight/Boulder City	11:44:35	-32.5	Dark	Down	33.7	256.6	Up	11:33:34 - 11:55:37	9153
Kingman/Dolan Springs	11:44:33	-31.8	Dark	Down	33.1	257.4	Up	11:33:32 - 11:55:35	9132
DCO	11:44:30	-31.1	Dark	Down	32.4	258.1	Up	11:33:29 - 11:55:32	9131
Laughlin/Bullhead City	11:44:33	-32.2	Dark	Down	33.5	257.1	Up	11:33:31 - 11:55:34	9126
Mohave Valley	11:44:33	-32.2	Dark	Down	33.6	257.3	Up	11:33:31 - 11:55:34	9099
CPSLO	11:44:48	-37.2	Dark	Down	38.2	252.6	Up	11:33:46 - 11:55:49	9099
Lake Havasu City	11:44:32	-32.0	Dark	Down	33.5	257.7	Up	11:33:30 - 11:55:33	9061
Parker	11:44:31	-31.9	Dark	Down	33.5	257.9	Up	11:33:30 - 11:55:33	9026
Wildwood	11:44:41	-35.4	Dark	Down	37.0	255.0	Up	11:33:40 - 11:55:43	8990
Blythe	11:44:31	-32.1	Dark	Down	33.9	258.1	Up	11:33:30 - 11:55:33	8970
Idyllwild	11:44:36	-33.9	Dark	Down	35.5	256.6	Up	11:33:34 - 11:55:37	8966
Calipatria	11:44:32	-32.9	Dark	Down	34.7	257.8	Up	11:33:31 - 11:55:34	8913
Yuma	11:44:29	-32.1	Dark	Down	34.1	258.6	Up	11:33:28 - 11:55:31	8876