RECON: TNO occultation with 136120

Event between (136120) 03LG7 and star GA0760:10244203 with event index number of 203505

Geocentric closest approach at 2019/08/01 04:24:12 UTC

J2000 position of star is 17:51:43.1 -12:37:56
Equinox of date position of star is 17:52:48.7 -12:38:09
Stellar brightness G=15.0, use SENSEUP=128
Star is 137 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=23.6

[RECON map]
TNO is 36.7 AU from the Sun and 35.9 AU from the Earth.
The TNO is moving 16.9 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 739 seconds.
The 1-sigma cross-track error in the shadow position is 3838 km.
The sky-plane scale is 26043.2 km/arcsec.

The TNO has an absolute magnitude Hv=7.9
Diameter=158.5 km assuming a 5% albedo -- 9.4 sec chord
Diameter=64.7 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is 3:1EE
 
 
 
 
 
 

Star training set for 136120, (2019/08/01 04:24UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.7 -26:28:26  0.9 23.74 120
35Eta Oph      17:11:30.2 -15:44:52  2.6 10.48 128
PPM 233722     17:55:13.0 -11:20:24  6.5  1.42 137
PPM 233639     17:51:01.6 -12:36:49  8.1  0.44 136
PPM 233698     17:53:25.7 -12:35:32  9.8  0.15 137
136120         17:52:49.2 -12:38:09 15.0       137
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 1.2 sigma about the mid-time.
The median site spacing is 15.5 km RECON observability=0.3 and success probability=3.4%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Kelowna	04:24:27	-6.6	NT	Down	26.6	167.2	Low	04:09:27 - 04:39:27	1383
Summerland	04:24:28	-6.6	NT	Down	26.9	166.9	Low	04:09:28 - 04:39:28	1370
Penticton	04:24:28	-6.7	NT	Down	27.0	167.0	Low	04:09:28 - 04:39:28	1366
Okanagan Falls	04:24:28	-6.8	NT	Down	27.1	166.9	Low	04:09:28 - 04:39:28	1356
Oliver	04:24:28	-7.0	NT	Down	27.3	166.9	Low	04:09:28 - 04:39:28	1348
Anarchist Mountain Observatory	04:24:28	-7.2	NT	Down	27.5	167.1	Low	04:09:28 - 04:39:28	1338
Oroville	04:24:28	-7.2	NT	Down	27.6	167.0	Low	04:09:28 - 04:39:28	1335
Tonasket	04:24:28	-7.3	NT	Down	27.8	167.0	Low	04:09:28 - 04:39:28	1323
Okanogan	04:24:29	-7.4	NT	Down	28.1	166.8	Low	04:09:29 - 04:39:29	1306
Brewster	04:24:31	-7.5	NT	Down	28.3	166.6	Low	04:09:31 - 04:39:31	1293
Manson/Chelan	04:24:32	-7.5	NT	Down	28.5	166.2	Low	04:09:32 - 04:39:32	1283
Entiat	04:24:33	-7.5	NT	Down	28.7	166.0	Low	04:09:33 - 04:39:33	1271
Wenatchee	04:24:34	-7.7	NT	Down	28.9	165.9	Low	04:09:34 - 04:39:34	1258
Ellensburg	04:24:36	-7.8	NT	Down	29.3	165.6	Low	04:09:36 - 04:39:36	1236
Yakima	04:24:36	-8.0	NT	Down	29.7	165.5	Low	04:09:36 - 04:39:36	1214
Toppenish/White Swan	04:24:36	-8.2	NT	Down	29.9	165.7	Low	04:09:36 - 04:39:36	1202
Pasco	04:24:30	-9.0	NT	Down	30.2	167.1	Up	04:09:30 - 04:39:30	1190
PNWRO	04:24:30	-9.3	NT	Down	30.5	167.3	Up	04:09:30 - 04:39:30	1175
Goldendale	04:24:38	-8.4	NT	Down	30.4	165.2	Up	04:09:38 - 04:39:38	1172
George/Umatilla	04:24:32	-9.1	NT	Down	30.5	166.8	Up	04:09:32 - 04:39:32	1172
The Dalles	04:24:40	-8.3	NT	Down	30.5	164.7	Up	04:09:40 - 04:39:40	1161
Maupin	04:24:41	-8.6	NT	Down	30.9	164.8	Up	04:09:41 - 04:39:41	1137
Madras/Culver	04:24:41	-8.9	NT	Down	31.5	164.6	Up	04:09:41 - 04:39:41	1105
Sisters	04:24:44	-8.8	NT	Down	31.7	164.1	Up	04:09:44 - 04:39:44	1087
Redmond	04:24:42	-9.1	NT	Down	31.8	164.5	Up	04:09:42 - 04:39:42	1084
Bend	04:24:43	-9.1	NT	Down	32.0	164.3	Up	04:09:43 - 04:39:43	1072
Oregon Observatory	04:24:44	-9.2	NT	Down	32.1	164.2	Up	04:09:44 - 04:39:44	1062
La Pine/Gilchrist	04:24:44	-9.3	NT	Down	32.3	164.1	Up	04:09:44 - 04:39:44	1050
North Lake	04:24:42	-9.9	NT	Down	32.8	164.7	Up	04:09:42 - 04:39:42	1022
Paisley	04:24:41	-10.4	NT	Down	33.4	165.0	Up	04:09:41 - 04:39:41	986
Chiloquin	04:24:48	-9.7	NT	Down	33.3	163.5	Up	04:09:48 - 04:39:48	984
Klamath Falls	04:24:48	-10.0	NT	Down	33.6	163.5	Up	04:09:48 - 04:39:48	962
Lakeview	04:24:41	-10.8	NT	Down	34.0	165.1	Up	04:09:41 - 04:39:41	954
Tulelake	04:24:47	-10.3	NT	Down	34.0	163.8	Up	04:09:47 - 04:39:47	944
Cedarville	04:24:42	-11.3	NT	Down	34.6	165.2	Up	04:09:42 - 04:39:42	912
Fall River/Burney	04:24:48	-10.9	NT	Down	34.9	163.7	Up	04:09:48 - 04:39:48	886
Susanville	04:24:45	-11.7	NT	Down	35.6	164.5	Up	04:09:45 - 04:39:45	842
Greenville	04:24:47	-11.7	NT	Down	35.8	164.1	Up	04:09:47 - 04:39:47	826
Gimple	04:24:47	-11.7	NT	Down	35.8	164.2	Up	04:09:47 - 04:39:47	825
Quincy	04:24:47	-11.8	NT	Down	36.0	164.0	Up	04:09:47 - 04:39:47	812
Portola	04:24:45	-12.2	AT	Down	36.2	164.6	Up	04:09:45 - 04:39:45	802
Reno	04:24:42	-12.7	AT	Down	36.6	165.3	Up	04:09:42 - 04:39:42	782
Carson City	04:24:43	-13.0	AT	Down	37.0	165.2	Up	04:09:43 - 04:39:43	758
Yerington	04:24:40	-13.5	AT	Down	37.3	165.9	Up	04:09:40 - 04:39:40	742
Gardnerville	04:24:43	-13.1	AT	Down	37.2	165.2	Up	04:09:43 - 04:39:43	741
Niwot	04:23:30	-20.5	Dark	Down	37.2	182.8	Up	04:08:30 - 04:38:30	720
SwRI	04:23:30	-20.5	Dark	Down	37.3	182.7	Up	04:08:30 - 04:38:30	714
Hawthorne	04:24:38	-14.1	AT	Down	37.8	166.5	Up	04:09:38 - 04:39:38	708
Lee Vining	04:24:41	-14.1	AT	Down	38.3	165.8	Up	04:09:41 - 04:39:41	671
Tonopah	04:24:31	-15.2	AT	Down	38.5	168.1	Up	04:09:31 - 04:39:31	668
Bishop	04:24:38	-14.9	AT	Down	39.0	166.6	Up	04:09:38 - 04:39:38	626
Beatty	04:24:30	-16.2	AT	Down	39.7	168.5	Up	04:09:30 - 04:39:30	585
Lone Pine	04:24:37	-15.6	AT	Down	39.8	166.8	Up	04:09:37 - 04:39:37	571
Indian Springs	04:24:25	-17.1	AT	Down	40.2	169.8	Up	04:09:25 - 04:39:25	555
Henderson	04:24:22	-17.8	AT	Down	40.8	170.5	Up	04:09:22 - 04:39:22	513
CPSLO	04:24:52	-14.7	AT	Down	40.5	163.4	Up	04:09:52 - 04:39:52	490
Searchlight/Boulder City	04:24:22	-18.2	Dark	Down	41.4	170.5	Up	04:09:22 - 04:39:22	470
Patrick	04:24:17	-18.9	Dark	Down	41.6	171.9	Up	04:09:17 - 04:39:17	460
Laughlin/Bullhead City	04:24:20	-18.6	Dark	Down	41.8	170.9	Up	04:09:20 - 04:39:20	446
Kingman/Dolan Springs	04:24:18	-19.0	Dark	Down	41.8	171.6	Up	04:09:18 - 04:39:18	445
DCO	04:24:13	-19.6	Dark	Down	42.0	172.7	Up	04:09:13 - 04:39:13	432
Mohave Valley	04:24:21	-18.8	Dark	Down	42.0	170.9	Up	04:09:21 - 04:39:21	426
Lake Havasu City	04:24:20	-19.2	Dark	Down	42.4	171.2	Up	04:09:20 - 04:39:20	395
Wildwood	04:24:43	-16.8	AT	Down	42.1	165.7	Up	04:09:43 - 04:39:43	390
Parker	04:24:20	-19.5	Dark	Down	42.8	171.2	Up	04:09:20 - 04:39:20	369
Idyllwild	04:24:33	-18.2	Dark	Down	42.8	168.0	Up	04:09:33 - 04:39:33	353
Blythe	04:24:22	-19.6	Dark	Down	43.3	170.7	Up	04:09:22 - 04:39:22	331
Calipatria	04:24:27	-19.3	Dark	Down	43.6	169.4	Up	04:09:27 - 04:39:27	300
Yuma	04:24:23	-20.2	Dark	Down	44.2	170.5	Up	04:09:23 - 04:39:23	261

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 136120, (2019/08/01 04:24UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 23.74 120
35Eta Oph      17:10:22.7 -15:43:29  2.6 10.48 128
PPM 233722     17:54:07.6 -11:20:15  6.5  1.42 137
PPM 233639     17:49:55.5 -12:36:33  8.1  0.44 136
PPM 233698     17:52:19.7 -12:35:20  9.8  0.15 137
136120         17:51:43.1 -12:37:56 15.0       137
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:29:29 UT

RECON