RECON: TNO occultation with 13NL24

Event between 13NL24 and star GA0780:22029697 with event index number of 357230

Geocentric closest approach at 2019/09/04 07:10:47 UTC

J2000 position of star is 22:33:31.6 -11:22:20
Equinox of date position of star is 22:34:34.0 -11:16:13
Stellar brightness G=15.6, use SENSEUP=128
Star is 107 degrees from the moon. Moon is 31% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 26.7 AU from the Sun and 25.7 AU from the Earth.
The TNO is moving 22.9 km/sec on the sky relative to the star, or, 4.4 arcsec/hr.
The 1-sigma error in the time of the event is 74 seconds.
The 1-sigma cross-track error in the shadow position is 1195 km.
The sky-plane scale is 18627.1 km/arcsec.

The TNO has an absolute magnitude Hv=8.2
Diameter=136.1 km assuming a 5% albedo -- 6.0 sec chord
Diameter=55.6 km assuming a 30% albedo -- 2.4 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 13NL24, (2019/09/04 07:11UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:44.0 -29:31:03  1.2 19.10 106
50 Aqr         22:25:30.2 -13:25:45  5.8  3.09 104
PPM 240416     22:33:29.0 -10:50:20  8.4  0.51 107
PPM 240437     22:34:39.3 -11:25:59  9.3  0.16 107
13NL24         22:34:34.1 -11:16:13 15.6       108
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 12.6 km RECON observability=1.0 and success probability=26.3%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Clarence Fulton	07:09:45	-31.6	Dark	Down	28.1	172.1	Low	07:03:05 - 07:16:26	28
Kelowna	07:09:46	-32.0	Dark	Down	28.4	171.9	Low	07:03:05 - 07:16:26	13
Summerland	07:09:47	-32.2	Dark	Down	28.7	171.6	Low	07:03:06 - 07:16:27	5
Penticton	07:09:47	-32.3	Dark	Down	28.7	171.8	Low	07:03:06 - 07:16:27	0
Okanagan Falls	07:09:47	-32.4	Dark	Down	28.9	171.7	Low	07:03:06 - 07:16:27	-9
Oliver	07:09:47	-32.6	Dark	Down	29.1	171.7	Low	07:03:07 - 07:16:28	-17
Anarchist Mountain Observatory	07:09:47	-32.8	Dark	Down	29.3	171.9	Low	07:03:06 - 07:16:27	-30
Oroville	07:09:47	-32.9	Dark	Down	29.4	171.8	Low	07:03:07 - 07:16:28	-32
Tonasket	07:09:47	-33.1	Dark	Down	29.6	171.8	Low	07:03:07 - 07:16:28	-43
Okanogan	07:09:48	-33.4	Dark	Down	29.9	171.6	Low	07:03:08 - 07:16:29	-56
Brewster	07:09:49	-33.6	Dark	Down	30.2	171.4	Up	07:03:09 - 07:16:30	-65
Manson/Chelan	07:09:51	-33.8	Dark	Down	30.3	171.0	Up	07:03:10 - 07:16:31	-66
Entiat	07:09:51	-34.0	Dark	Down	30.5	170.9	Up	07:03:11 - 07:16:32	-76
Wenatchee	07:09:52	-34.2	Dark	Down	30.8	170.7	Up	07:03:11 - 07:16:32	-86
Ellensburg	07:09:53	-34.6	Dark	Down	31.2	170.4	Up	07:03:12 - 07:16:33	-102
Yakima	07:09:54	-34.9	Dark	Down	31.6	170.4	Up	07:03:13 - 07:16:34	-122
Toppenish/White Swan	07:09:53	-35.2	Dark	Down	31.8	170.6	Up	07:03:13 - 07:16:34	-138
Goldendale	07:09:55	-35.6	Dark	Down	32.3	170.0	Up	07:03:15 - 07:16:36	-156
The Dalles	07:09:57	-35.8	Dark	Down	32.5	169.6	Up	07:03:16 - 07:16:37	-159
Pasco	07:09:50	-35.5	Dark	Down	32.0	172.0	Up	07:03:09 - 07:16:30	-175
Maupin	07:09:57	-36.2	Dark	Down	32.9	169.7	Up	07:03:17 - 07:16:38	-184
PNWRO	07:09:49	-35.8	Dark	Down	32.3	172.2	Up	07:03:09 - 07:16:30	-194
Madras/Culver	07:09:58	-36.7	Dark	Down	33.4	169.5	Up	07:03:17 - 07:16:38	-213
Sisters	07:10:00	-36.9	Dark	Down	33.7	169.0	Up	07:03:19 - 07:16:40	-220
Redmond	07:09:59	-37.1	Dark	Down	33.8	169.4	Up	07:03:18 - 07:16:39	-231
Bend	07:09:59	-37.2	Dark	Down	34.0	169.3	Up	07:03:19 - 07:16:40	-239
Oregon Observatory	07:10:00	-37.4	Dark	Down	34.1	169.1	Up	07:03:20 - 07:16:41	-246
La Pine/Gilchrist	07:10:01	-37.6	Dark	Down	34.3	169.0	Up	07:03:20 - 07:16:41	-256
North Lake	07:09:59	-38.1	Dark	Down	34.8	169.6	Up	07:03:19 - 07:16:40	-295
Chiloquin	07:10:03	-38.5	Dark	Down	35.3	168.4	Up	07:03:23 - 07:16:44	-310
Klamath Falls	07:10:04	-38.9	Dark	Down	35.7	168.5	Up	07:03:23 - 07:16:44	-332
Paisley	07:09:59	-38.7	Dark	Down	35.4	170.0	Up	07:03:18 - 07:16:39	-336
Tulelake	07:10:03	-39.2	Dark	Down	36.0	168.8	Up	07:03:23 - 07:16:44	-355
Lakeview	07:09:59	-39.2	Dark	Down	35.9	170.2	Up	07:03:18 - 07:16:39	-370
Fall River/Burney	07:10:04	-40.1	Dark	Down	36.9	168.8	Up	07:03:24 - 07:16:45	-411
Cedarville	07:09:59	-39.9	Dark	Down	36.6	170.3	Up	07:03:19 - 07:16:40	-414
Susanville	07:10:03	-40.9	Dark	Down	37.6	169.6	Up	07:03:22 - 07:16:43	-468
Greenville	07:10:04	-41.1	Dark	Down	37.9	169.2	Up	07:03:24 - 07:16:45	-478
Gimple	07:10:04	-41.1	Dark	Down	37.9	169.3	Up	07:03:23 - 07:16:44	-480
Quincy	07:10:04	-41.3	Dark	Down	38.1	169.2	Up	07:03:24 - 07:16:45	-490
Portola	07:10:03	-41.5	Dark	Down	38.3	169.7	Up	07:03:22 - 07:16:43	-511
Reno	07:10:01	-41.9	Dark	Down	38.6	170.5	Up	07:03:20 - 07:16:41	-545
Carson City	07:10:01	-42.2	Dark	Down	39.0	170.5	Up	07:03:21 - 07:16:42	-568
Gardnerville	07:10:01	-42.5	Dark	Down	39.2	170.5	Up	07:03:21 - 07:16:42	-585
Yerington	07:09:59	-42.5	Dark	Down	39.2	171.2	Up	07:03:19 - 07:16:40	-598
Hawthorne	07:09:58	-43.1	Dark	Down	39.7	171.8	Up	07:03:18 - 07:16:39	-642
Lee Vining	07:10:01	-43.5	Dark	Down	40.2	171.2	Up	07:03:20 - 07:16:41	-665
Tonopah	07:09:54	-43.8	Dark	Down	40.3	173.6	Up	07:03:14 - 07:16:35	-712
Bishop	07:09:59	-44.3	Dark	Down	40.9	172.0	Up	07:03:18 - 07:16:39	-725
Lone Pine	07:09:59	-45.1	Dark	Down	41.7	172.3	Up	07:03:18 - 07:16:39	-785
CPSLO	07:10:10	-45.7	Dark	Down	42.7	168.8	Up	07:03:30 - 07:16:51	-800
Beatty	07:09:54	-45.0	Dark	Down	41.5	174.0	Up	07:03:13 - 07:16:34	-803
Indian Springs	07:09:50	-45.5	Dark	Down	41.9	175.4	Up	07:03:09 - 07:16:30	-857
Henderson	07:09:48	-46.2	Dark	Down	42.5	176.3	Up	07:03:08 - 07:16:29	-914
Niwot	07:09:09	-42.6	Dark	Down	38.1	188.6	Up	07:02:29 - 07:15:50	-932
SwRI	07:09:10	-42.7	Dark	Down	38.2	188.5	Up	07:02:30 - 07:15:51	-937
Wildwood	07:10:04	-47.4	Dark	Down	44.1	171.3	Up	07:03:24 - 07:16:45	-944
Searchlight/Boulder City	07:09:48	-46.7	Dark	Down	43.1	176.3	Up	07:03:08 - 07:16:29	-956
Laughlin/Bullhead City	07:09:48	-47.1	Dark	Down	43.4	176.8	Up	07:03:07 - 07:16:28	-988
Patrick	07:09:45	-46.9	Dark	Down	43.2	177.7	Up	07:03:04 - 07:16:25	-992
Kingman/Dolan Springs	07:09:46	-47.1	Dark	Down	43.4	177.5	Up	07:03:05 - 07:16:26	-1002
Mohave Valley	07:09:48	-47.3	Dark	Down	43.7	176.8	Up	07:03:08 - 07:16:29	-1007
Idyllwild	07:09:58	-48.1	Dark	Down	44.7	173.8	Up	07:03:17 - 07:16:38	-1025
DCO	07:09:43	-47.3	Dark	Down	43.5	178.7	Up	07:03:02 - 07:16:23	-1035
Lake Havasu City	07:09:48	-47.8	Dark	Down	44.1	177.1	Up	07:03:07 - 07:16:28	-1043
Parker	07:09:48	-48.1	Dark	Down	44.4	177.1	Up	07:03:08 - 07:16:29	-1070
Blythe	07:09:50	-48.6	Dark	Down	45.0	176.7	Up	07:03:09 - 07:16:30	-1099
Calipatria	07:09:54	-48.9	Dark	Down	45.4	175.4	Up	07:03:13 - 07:16:34	-1106
Yuma	07:09:51	-49.5	Dark	Down	45.9	176.6	Up	07:03:11 - 07:16:32	-1165
George/Scottsdale	07:09:39	-48.8	Dark	Down	44.9	180.4	Up	07:02:59 - 07:16:20	-1177

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 13NL24, (2019/09/04 07:11UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:23  1.2 19.10 106
50 Aqr         22:24:27.1 -13:31:46  5.8  3.09 104
PPM 240416     22:32:26.6 -10:56:26  8.4  0.51 107
PPM 240437     22:33:36.8 -11:32:06  9.3  0.16 107
13NL24         22:33:31.6 -11:22:20 15.6       107
Positions are for J2000

Event circumstances last updated at 2019/09/02 14:13:34 UT

RECON