RECON: TNO occultation with 03TL58

Event between 03TL58 and star GA1100:02104029 with event index number of 362918

Geocentric closest approach at 2020/10/24 08:19:46 UTC

J2000 position of star is 06:28:31.3 +20:33:14
Equinox of date position of star is 06:29:40.1 +20:32:25
Stellar brightness G=13.8, use SENSEUP=64
Star is 145 degrees from the moon. Moon is 58% illuminated.
TNO apparent brightness V=23.5

[RECON map]
TNO is 41.7 AU from the Sun and 41.3 AU from the Earth.
The TNO is moving 8.4 km/sec on the sky relative to the star, or, 1.0 arcsec/hr.
The 1-sigma error in the time of the event is 431 seconds.
The 1-sigma cross-track error in the shadow position is 2578 km.
The sky-plane scale is 29970.9 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=219.8 km assuming a 5% albedo -- 26.0 sec chord
Diameter=89.7 km assuming a 30% albedo -- 10.6 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 03TL58, (2020/10/24 08:20UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:18.0 +07:24:33  0.4 15.43 134
Alhena         06:38:54.8 +16:22:47  1.9  4.69 147
16 Gem         06:29:11.0 +20:28:54  6.1  0.15 145
03TL58         06:29:45.7 +20:32:21 13.8       146
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 2.1 sigma about the mid-time.
The median site spacing is 16.9 km RECON observability=1.0 and success probability=0.6%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Kelowna	08:25:32	-51.0	Dark	Down	36.7	101.9	Up	08:10:32 - 08:40:32	10298
Summerland	08:25:33	-51.3	Dark	Down	36.6	101.4	Up	08:10:33 - 08:40:33	10285
Penticton	08:25:39	-51.4	Dark	Down	36.7	101.5	Up	08:10:39 - 08:40:39	10277
Okanagan Falls	08:25:40	-51.6	Dark	Down	36.7	101.3	Up	08:10:40 - 08:40:40	10264
Oliver	08:25:40	-51.7	Dark	Down	36.8	101.2	Up	08:10:40 - 08:40:40	10252
Anarchist Mountain Observatory	08:25:42	-51.8	Dark	Down	36.9	101.3	Up	08:10:42 - 08:40:42	10234
Oroville	08:25:42	-51.9	Dark	Down	36.9	101.1	Up	08:10:42 - 08:40:42	10231
Tonasket	08:25:42	-52.1	Dark	Down	36.9	101.0	Up	08:10:42 - 08:40:42	10214
Okanogan	08:25:49	-52.5	Dark	Down	36.9	100.6	Up	08:10:49 - 08:40:49	10194
Brewster	08:25:51	-52.8	Dark	Down	36.8	100.3	Up	08:10:51 - 08:40:51	10180
Manson/Chelan	08:25:55	-53.1	Dark	Down	36.6	99.8	Up	08:10:55 - 08:40:55	10175
Entiat	08:25:56	-53.3	Dark	Down	36.6	99.6	Up	08:10:56 - 08:40:56	10161
Wenatchee	08:26:01	-53.5	Dark	Down	36.6	99.3	Up	08:11:01 - 08:41:01	10145
Ellensburg	08:26:06	-54.0	Dark	Down	36.6	98.9	Up	08:11:06 - 08:41:06	10121
Yakima	08:26:09	-54.4	Dark	Down	36.6	98.6	Up	08:11:09 - 08:41:09	10091
Toppenish/White Swan	08:26:16	-54.5	Dark	Down	36.8	98.6	Up	08:11:16 - 08:41:16	10070
Goldendale	08:26:18	-55.1	Dark	Down	36.6	97.8	Up	08:11:18 - 08:41:18	10041
The Dalles	08:26:23	-55.4	Dark	Down	36.4	97.4	Up	08:11:23 - 08:41:23	10035
Pasco	08:26:07	-54.4	Dark	Down	37.6	99.5	Up	08:11:07 - 08:41:07	10024
George/Umatilla	08:26:12	-54.7	Dark	Down	37.6	99.1	Up	08:11:12 - 08:41:12	10005
Maupin	08:26:26	-55.8	Dark	Down	36.5	97.2	Up	08:11:26 - 08:41:26	10000
PNWRO	08:26:09	-54.6	Dark	Down	37.9	99.5	Up	08:11:09 - 08:41:09	9998
Madras/Culver	08:26:30	-56.3	Dark	Down	36.6	96.8	Up	08:11:30 - 08:41:30	9959
Sisters	08:26:40	-56.7	Dark	Down	36.3	96.2	Up	08:11:40 - 08:41:40	9947
Redmond	08:26:34	-56.7	Dark	Down	36.6	96.5	Up	08:11:34 - 08:41:34	9934
Bend	08:26:38	-56.9	Dark	Down	36.5	96.2	Up	08:11:38 - 08:41:38	9921
Oregon Observatory	08:26:40	-57.1	Dark	Down	36.4	96.0	Up	08:11:40 - 08:41:40	9912
La Pine/Gilchrist	08:26:42	-57.3	Dark	Down	36.4	95.8	Up	08:11:42 - 08:41:42	9898
North Lake	08:26:47	-57.6	Dark	Down	36.9	96.0	Up	08:11:47 - 08:41:47	9845
Chiloquin	08:26:55	-58.4	Dark	Down	36.3	94.8	Up	08:11:55 - 08:41:55	9822
Klamath Falls	08:26:59	-58.7	Dark	Down	36.4	94.6	Up	08:11:59 - 08:41:59	9792
Paisley	08:26:47	-58.0	Dark	Down	37.2	95.8	Up	08:11:47 - 08:41:47	9791
Tulelake	08:27:01	-58.9	Dark	Down	36.7	94.6	Up	08:12:01 - 08:42:01	9761
Lakeview	08:26:52	-58.5	Dark	Down	37.4	95.6	Up	08:11:52 - 08:41:52	9745
Cedarville	08:26:57	-59.0	Dark	Down	37.6	95.2	Up	08:11:57 - 08:41:57	9686
Fall River/Burney	08:27:08	-59.8	Dark	Down	36.8	94.0	Up	08:12:08 - 08:42:08	9686
Susanville	08:27:10	-60.2	Dark	Down	37.4	94.1	Up	08:12:10 - 08:42:10	9611
Greenville	08:27:13	-60.5	Dark	Down	37.2	93.7	Up	08:12:13 - 08:42:13	9598
Gimple	08:27:13	-60.5	Dark	Down	37.3	93.7	Up	08:12:13 - 08:42:13	9595
Quincy	08:27:14	-60.7	Dark	Down	37.2	93.5	Up	08:12:14 - 08:42:14	9581
Portola	08:27:13	-60.7	Dark	Down	37.6	93.7	Up	08:12:13 - 08:42:13	9555
Reno	08:27:14	-60.8	Dark	Down	38.1	94.0	Up	08:12:14 - 08:42:14	9512
Carson City	08:27:15	-61.1	Dark	Down	38.2	93.7	Up	08:12:15 - 08:42:15	9482
Gardnerville	08:27:17	-61.3	Dark	Down	38.2	93.6	Up	08:12:17 - 08:42:17	9460
Yerington	08:27:14	-61.1	Dark	Down	38.7	94.0	Up	08:12:14 - 08:42:14	9445
Hawthorne	08:27:17	-61.3	Dark	Down	39.1	94.0	Up	08:12:17 - 08:42:17	9388
Lee Vining	08:27:22	-62.0	Dark	Down	38.8	93.2	Up	08:12:22 - 08:42:22	9356
Tonopah	08:27:14	-61.2	Dark	Down	40.3	94.5	Up	08:12:14 - 08:42:14	9302
Bishop	08:27:22	-62.3	Dark	Down	39.4	93.2	Up	08:12:22 - 08:42:22	9281
Lone Pine	08:27:28	-62.8	Dark	Down	39.7	92.8	Up	08:12:28 - 08:42:28	9204
Beatty	08:27:22	-62.0	Dark	Down	40.7	93.9	Up	08:12:22 - 08:42:22	9187
CPSLO	08:27:53	-64.9	Dark	Down	37.7	90.2	Up	08:12:53 - 08:42:53	9180
Indian Springs	08:27:15	-61.9	Dark	Down	41.6	94.3	Up	08:12:15 - 08:42:15	9122
Niwot	08:25:43	-54.1	Dark	Down	48.8	105.4	Up	08:10:43 - 08:40:43	9102
SwRI	08:25:44	-54.3	Dark	Down	48.8	105.2	Up	08:10:44 - 08:40:44	9095
Henderson	08:27:17	-62.0	Dark	Down	42.2	94.2	Up	08:12:17 - 08:42:17	9052
Wildwood	08:27:54	-65.2	Dark	Down	39.5	90.5	Up	08:12:54 - 08:42:54	9002
Searchlight/Boulder City	08:27:19	-62.4	Dark	Down	42.3	93.8	Up	08:12:19 - 08:42:19	8999
Laughlin/Bullhead City	08:27:21	-62.5	Dark	Down	42.6	93.7	Up	08:12:21 - 08:42:21	8961
Patrick	08:27:15	-62.0	Dark	Down	43.2	94.4	Up	08:12:15 - 08:42:15	8959
Kingman/Dolan Springs	08:27:18	-62.3	Dark	Down	43.0	94.0	Up	08:12:18 - 08:42:18	8945
Mohave Valley	08:27:23	-62.7	Dark	Down	42.6	93.5	Up	08:12:23 - 08:42:23	8936
DCO	08:27:13	-61.9	Dark	Down	43.7	94.5	Up	08:12:13 - 08:42:13	8907
Idyllwild	08:27:43	-64.7	Dark	Down	41.0	91.2	Up	08:12:43 - 08:42:43	8905
Lake Havasu City	08:27:24	-62.9	Dark	Down	42.9	93.2	Up	08:12:24 - 08:42:24	8891
Parker	08:27:26	-63.2	Dark	Down	42.9	92.9	Up	08:12:26 - 08:42:26	8859
Blythe	08:27:29	-63.7	Dark	Down	42.7	92.3	Up	08:12:29 - 08:42:29	8821
Calipatria	08:27:42	-64.6	Dark	Down	42.0	91.3	Up	08:12:42 - 08:42:42	8808
Yuma	08:27:38	-64.5	Dark	Down	42.7	91.4	Up	08:12:38 - 08:42:38	8738

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 03TL58, (2020/10/24 08:20UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 15.43 134
Alhena         06:37:42.8 +16:23:57  1.9  4.69 147
16 Gem         06:27:56.7 +20:29:46  6.1  0.15 145
03TL58         06:28:31.3 +20:33:14 13.8       145
Positions are for J2000

Event circumstances last updated at 2019/03/29 21:58:29 UT

RECON