RECON: TNO occultation with 523719

Event between (523719) 14LM28 and star GA1180:04021415 with event index number of 306897

Geocentric closest approach at 2019/07/22 09:21:26 UTC

J2000 position of star is 16:59:36.3 +29:49:48
Equinox of date position of star is 17:00:21.6 +29:48:08
Stellar brightness G=16.4, use SENSEUP=128
Star is 107 degrees from the moon. Moon is 75% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 17.0 AU from the Sun and 16.5 AU from the Earth.
The TNO is moving 19.3 km/sec on the sky relative to the star, or, 5.8 arcsec/hr.
The 1-sigma error in the time of the event is 45 seconds.
The 1-sigma cross-track error in the shadow position is 1931 km.
The sky-plane scale is 11994.3 km/arcsec.

The TNO has an absolute magnitude Hv=9.9
Diameter=63.1 km assuming a 5% albedo -- 3.3 sec chord
Diameter=25.8 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 523719, (2019/07/22 09:21UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:36.1 +38:48:10  0.0 21.92  87
27Bet Her      16:31:03.7 +21:26:53  2.8 10.64 114
53 Her         16:53:42.6 +31:40:13  5.3  2.35 108
PPM 105417     17:00:20.8 +29:31:17  8.0  0.28 107
523719         17:00:21.9 +29:48:07 16.4       107
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 20.9 km RECON observability=1.0 and success probability=22.0%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Kelowna	09:17:34	-17.9	AT	Up	38.1	272.9	Up	09:13:17 - 09:21:51	1651
Summerland	09:17:34	-18.3	Dark	Up	38.3	272.9	Up	09:13:17 - 09:21:51	1616
Penticton	09:17:33	-18.3	Dark	Up	38.2	273.0	Up	09:13:16 - 09:21:50	1612
Okanagan Falls	09:17:33	-18.5	Dark	Up	38.2	273.2	Up	09:13:16 - 09:21:50	1593
Oliver	09:17:32	-18.7	Dark	Up	38.2	273.3	Up	09:13:15 - 09:21:49	1577
Anarchist Mountain Observatory	09:17:32	-18.8	Dark	Up	38.0	273.6	Up	09:13:15 - 09:21:49	1565
Oroville	09:17:32	-18.9	Dark	Up	38.1	273.6	Up	09:13:15 - 09:21:49	1556
Tonasket	09:17:31	-19.1	Dark	Up	38.1	273.8	Up	09:13:14 - 09:21:48	1533
Okanogan	09:17:30	-19.4	Dark	Up	38.2	273.9	Up	09:13:13 - 09:21:47	1496
Brewster	09:17:30	-19.7	Dark	Up	38.3	274.0	Up	09:13:13 - 09:21:47	1465
Manson/Chelan	09:17:31	-20.0	Dark	Up	38.5	273.9	Up	09:13:14 - 09:21:48	1435
Entiat	09:17:30	-20.2	Dark	Up	38.5	274.0	Up	09:13:13 - 09:21:47	1412
Wenatchee	09:17:30	-20.5	Dark	Up	38.6	274.1	Up	09:13:13 - 09:21:47	1384
Ellensburg	09:17:29	-20.9	Dark	Up	38.7	274.3	Up	09:13:12 - 09:21:46	1338
Pasco	09:17:24	-21.3	Dark	Up	37.7	275.9	Up	09:13:07 - 09:21:41	1298
Yakima	09:17:28	-21.3	Dark	Up	38.7	274.6	Up	09:13:11 - 09:21:45	1297
PNWRO	09:17:23	-21.5	Dark	Up	37.5	276.2	Up	09:13:06 - 09:21:40	1279
Toppenish/White Swan	09:17:28	-21.5	Dark	Up	38.6	274.9	Up	09:13:11 - 09:21:45	1279
George/Umatilla	09:17:24	-21.7	Dark	Up	37.8	276.0	Up	09:13:07 - 09:21:41	1259
Goldendale	09:17:27	-22.1	Dark	Up	38.8	275.1	Up	09:13:10 - 09:21:44	1213
The Dalles	09:17:27	-22.4	Dark	Up	39.0	275.0	Up	09:13:10 - 09:21:44	1182
Maupin	09:17:26	-22.8	Dark	Up	38.9	275.4	Up	09:13:09 - 09:21:43	1142
Niwot	09:16:44	-22.5	Dark	Up	26.6	287.8	Low	09:12:27 - 09:21:01	1118
SwRI	09:16:44	-22.6	Dark	Up	26.6	287.8	Low	09:12:27 - 09:21:01	1105
Madras/Culver	09:17:25	-23.3	Dark	Up	38.9	275.8	Up	09:13:08 - 09:21:42	1085
Redmond	09:17:24	-23.7	Dark	Up	38.9	276.1	Up	09:13:07 - 09:21:41	1048
Sisters	09:17:25	-23.7	Dark	Up	39.2	275.8	Up	09:13:08 - 09:21:42	1040
Bend	09:17:24	-23.9	Dark	Up	39.0	276.2	Up	09:13:07 - 09:21:41	1022
Oregon Observatory	09:17:24	-24.1	Dark	Up	39.1	276.2	Up	09:13:07 - 09:21:41	1002
La Pine/Gilchrist	09:17:24	-24.3	Dark	Up	39.1	276.3	Up	09:13:07 - 09:21:41	979
North Lake	09:17:21	-24.6	Dark	Up	38.6	277.1	Up	09:13:04 - 09:21:38	950
Paisley	09:17:19	-25.1	Dark	Up	38.3	277.7	Up	09:13:02 - 09:21:36	903
Chiloquin	09:17:22	-25.5	Dark	Up	39.2	277.0	Up	09:13:05 - 09:21:39	856
Lakeview	09:17:18	-25.5	Dark	Up	38.1	278.2	Up	09:13:01 - 09:21:35	856
Klamath Falls	09:17:21	-25.8	Dark	Up	39.1	277.3	Up	09:13:04 - 09:21:38	823
Tulelake	09:17:20	-26.0	Dark	Up	38.9	277.7	Up	09:13:03 - 09:21:37	803
Cedarville	09:17:16	-26.1	Dark	Up	37.9	278.8	Up	09:12:59 - 09:21:33	793
Fall River/Burney	09:17:18	-26.8	Dark	Up	38.7	278.5	Up	09:13:01 - 09:21:35	711
Susanville	09:17:15	-27.2	Dark	Up	38.0	279.4	Up	09:12:58 - 09:21:32	666
Gimple	09:17:15	-27.6	Dark	Up	38.2	279.5	Up	09:12:58 - 09:21:32	631
Greenville	09:17:15	-27.6	Dark	Up	38.2	279.5	Up	09:12:58 - 09:21:32	630
Quincy	09:17:14	-27.8	Dark	Up	38.2	279.6	Up	09:12:57 - 09:21:31	609
Portola	09:17:13	-27.8	Dark	Up	37.8	280.0	Up	09:12:56 - 09:21:30	608
Reno	09:17:11	-27.9	Dark	Up	37.3	280.5	Up	09:12:54 - 09:21:28	598
Carson City	09:17:10	-28.2	Dark	Up	37.2	280.8	Up	09:12:53 - 09:21:27	562
Yerington	09:17:08	-28.2	Dark	Up	36.7	281.3	Up	09:12:51 - 09:21:25	559
Gardnerville	09:17:10	-28.4	Dark	Up	37.1	281.0	Up	09:12:53 - 09:21:27	538
Hawthorne	09:17:06	-28.5	Dark	Up	36.2	281.9	Up	09:12:49 - 09:21:23	527
Tonopah	09:17:02	-28.6	Dark	Up	35.0	282.9	Up	09:12:45 - 09:21:19	519
Lee Vining	09:17:06	-29.2	Dark	Up	36.4	282.0	Up	09:12:49 - 09:21:23	454
Beatty	09:16:59	-29.5	Dark	Up	34.4	283.9	Up	09:12:42 - 09:21:16	414
Indian Springs	09:16:56	-29.5	Dark	Up	33.5	284.6	Up	09:12:39 - 09:21:13	414
Bishop	09:17:03	-29.6	Dark	Up	35.8	282.8	Up	09:12:46 - 09:21:20	413
Henderson	09:16:53	-29.7	Dark	Up	32.8	285.2	Up	09:12:36 - 09:21:10	381
Patrick	09:16:50	-29.9	Dark	Up	31.8	286.1	Up	09:12:33 - 09:21:07	353
DCO	09:16:48	-29.9	Dark	Up	31.1	286.6	Up	09:12:31 - 09:21:05	345
Lone Pine	09:17:01	-30.2	Dark	Up	35.3	283.5	Up	09:12:44 - 09:21:18	344
Searchlight/Boulder City	09:16:52	-30.2	Dark	Up	32.6	285.6	Up	09:12:35 - 09:21:09	324
Kingman/Dolan Springs	09:16:50	-30.2	Dark	Up	31.9	286.2	Up	09:12:33 - 09:21:07	324
Laughlin/Bullhead City	09:16:51	-30.4	Dark	Up	32.3	285.9	Up	09:12:34 - 09:21:08	305
Mohave Valley	09:16:51	-30.6	Dark	Up	32.2	286.1	Up	09:12:34 - 09:21:08	277
Lake Havasu City	09:16:49	-30.9	Dark	Up	31.9	286.5	Up	09:12:32 - 09:21:06	244
Parker	09:16:48	-31.2	Dark	Up	31.8	286.7	Up	09:12:31 - 09:21:05	209
Blythe	09:16:48	-31.8	Dark	Up	31.9	286.9	Up	09:12:31 - 09:21:05	145
CPSLO	09:17:05	-32.1	Dark	Up	37.1	283.2	Up	09:12:48 - 09:21:22	134
Idyllwild	09:16:53	-32.4	Dark	Up	33.6	285.9	Up	09:12:36 - 09:21:10	89
Wildwood	09:16:58	-32.7	Dark	Up	35.2	285.0	Up	09:12:41 - 09:21:15	68
Calipatria	09:16:50	-32.6	Dark	Up	32.5	286.8	Up	09:12:33 - 09:21:07	64
Yuma	09:16:47	-32.6	Dark	Up	31.6	287.4	Up	09:12:30 - 09:21:04	48

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 523719, (2019/07/22 09:21UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 21.92  87
27Bet Her      16:30:13.1 +21:29:22  2.8 10.64 114
53 Her         16:52:57.9 +31:42:06  5.3  2.35 108
PPM 105417     16:59:34.9 +29:32:58  8.0  0.28 107
523719         16:59:36.3 +29:49:48 16.4       107
Positions are for J2000

Event circumstances last updated at 2019/05/23 22:41:10 UT

RECON