RECON: TNO occultation with 119315

Event between (119315) 01SQ73 and star GA1300:03773706 with event index number of 238704

Geocentric closest approach at 2020/01/13 12:25:22 UTC

J2000 position of star is 07:18:10.3 +40:43:21
Equinox of date position of star is 07:19:31.1 +40:41:09
Stellar brightness G=15.9, use SENSEUP=128
Star is 45 degrees from the moon. Moon is 90% illuminated.
TNO apparent brightness V=22.6

[RECON map]
TNO is 19.8 AU from the Sun and 18.8 AU from the Earth.
The TNO is moving 23.9 km/sec on the sky relative to the star, or, 6.3 arcsec/hr.
The 1-sigma error in the time of the event is 657 seconds.
The 1-sigma cross-track error in the shadow position is 2464 km.
The sky-plane scale is 13667.2 km/arcsec.

The TNO has an absolute magnitude Hv=9.6
Diameter=72.4 km assuming a 5% albedo -- 3.0 sec chord
Diameter=29.6 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 119315, (2020/01/13 12:25UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:32.4 +27:58:34  1.1 13.86  36
66 Aur         07:25:31.5 +40:37:55  5.2  1.13  44
PPM 049739     07:19:04.0 +40:54:27  8.2  0.24  45
119315         07:19:33.6 +40:41:05 15.9        45
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 1.4 sigma about the mid-time.
The median site spacing is 13.1 km RECON observability=1.0 and success probability=8.5%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Niwot	12:22:09	-22.4	Dark	Up	29.2	300.4	Low	12:07:09 - 12:37:09	4129
SwRI	12:22:09	-22.5	Dark	Up	29.2	300.4	Low	12:07:09 - 12:37:09	4117
Kelowna	12:22:52	-32.8	Dark	Up	42.2	286.9	Up	12:07:52 - 12:37:52	4040
Penticton	12:22:51	-32.9	Dark	Up	42.2	287.1	Up	12:07:51 - 12:37:51	4007
Summerland	12:22:51	-33.0	Dark	Up	42.3	287.0	Up	12:07:51 - 12:37:51	4007
Okanagan Falls	12:22:50	-32.9	Dark	Up	42.2	287.2	Up	12:07:50 - 12:37:50	3994
Oliver	12:22:49	-32.9	Dark	Up	42.1	287.4	Up	12:07:49 - 12:37:49	3984
Anarchist Mountain Observatory	12:22:49	-32.8	Dark	Up	42.0	287.6	Up	12:07:49 - 12:37:49	3981
Oroville	12:22:48	-32.9	Dark	Up	42.0	287.7	Up	12:07:48 - 12:37:48	3972
Tonasket	12:22:48	-32.9	Dark	Up	41.9	287.9	Up	12:07:48 - 12:37:48	3957
Okanogan	12:22:46	-33.0	Dark	Up	41.9	288.1	Up	12:07:46 - 12:37:46	3927
Brewster	12:22:46	-33.2	Dark	Up	41.9	288.2	Up	12:07:46 - 12:37:46	3898
Manson/Chelan	12:22:45	-33.5	Dark	Up	42.1	288.1	Up	12:07:45 - 12:37:45	3866
Entiat	12:22:45	-33.5	Dark	Up	42.1	288.3	Up	12:07:45 - 12:37:45	3848
Wenatchee	12:22:44	-33.6	Dark	Up	42.1	288.5	Up	12:07:44 - 12:37:44	3825
Pasco	12:22:39	-32.9	Dark	Up	40.9	290.0	Up	12:07:39 - 12:37:39	3802
PNWRO	12:22:38	-32.7	Dark	Up	40.7	290.4	Up	12:07:38 - 12:37:38	3796
Ellensburg	12:22:43	-33.8	Dark	Up	42.1	288.7	Up	12:07:43 - 12:37:43	3785
George/Umatilla	12:22:38	-33.0	Dark	Up	41.0	290.2	Up	12:07:38 - 12:37:38	3768
Yakima	12:22:42	-33.8	Dark	Up	42.0	289.0	Up	12:07:42 - 12:37:42	3756
Toppenish/White Swan	12:22:41	-33.7	Dark	Up	41.8	289.3	Up	12:07:41 - 12:37:41	3749
Goldendale	12:22:39	-34.1	Dark	Up	41.9	289.5	Up	12:07:39 - 12:37:39	3688
The Dalles	12:22:39	-34.3	Dark	Up	42.1	289.5	Up	12:07:39 - 12:37:39	3654
Maupin	12:22:37	-34.3	Dark	Up	41.9	289.9	Up	12:07:37 - 12:37:37	3629
Madras/Culver	12:22:36	-34.4	Dark	Up	41.7	290.4	Up	12:07:36 - 12:37:36	3587
Redmond	12:22:35	-34.4	Dark	Up	41.6	290.7	Up	12:07:35 - 12:37:35	3558
Sisters	12:22:35	-34.7	Dark	Up	41.9	290.4	Up	12:07:35 - 12:37:35	3539
Bend	12:22:34	-34.5	Dark	Up	41.6	290.8	Up	12:07:34 - 12:37:34	3535
Oregon Observatory	12:22:34	-34.6	Dark	Up	41.7	290.8	Up	12:07:34 - 12:37:34	3515
La Pine/Gilchrist	12:22:33	-34.7	Dark	Up	41.6	291.0	Up	12:07:33 - 12:37:33	3497
North Lake	12:22:31	-34.3	Dark	Up	41.1	291.6	Up	12:07:31 - 12:37:31	3496
Paisley	12:22:29	-34.0	Dark	Up	40.6	292.2	Up	12:07:29 - 12:37:29	3474
Lakeview	12:22:27	-33.9	Dark	Up	40.3	292.7	Up	12:07:27 - 12:37:27	3446
Cedarville	12:22:24	-33.8	Dark	Up	39.9	293.3	Up	12:07:24 - 12:37:24	3406
Chiloquin	12:22:30	-35.0	Dark	Up	41.5	291.7	Up	12:07:30 - 12:37:30	3396
Klamath Falls	12:22:28	-35.0	Dark	Up	41.3	292.1	Up	12:07:28 - 12:37:28	3374
Tulelake	12:22:27	-34.7	Dark	Up	41.0	292.4	Up	12:07:27 - 12:37:27	3369
DCO	12:21:58	-27.9	Dark	Up	32.2	300.0	Up	12:06:58 - 12:36:58	3323
Tonopah	12:22:10	-31.4	Dark	Up	36.4	296.9	Up	12:07:10 - 12:37:10	3308
Fall River/Burney	12:22:25	-34.7	Dark	Up	40.6	293.1	Up	12:07:25 - 12:37:25	3305
Patrick	12:22:00	-28.5	Dark	Up	32.9	299.6	Up	12:07:00 - 12:37:00	3304
Susanville	12:22:21	-34.1	Dark	Up	39.8	293.9	Up	12:07:21 - 12:37:21	3296
Henderson	12:22:02	-29.5	Dark	Up	34.0	298.9	Up	12:07:02 - 12:37:02	3285
Indian Springs	12:22:05	-30.1	Dark	Up	34.7	298.3	Up	12:07:05 - 12:37:05	3285
Kingman/Dolan Springs	12:21:59	-28.7	Dark	Up	32.9	299.6	Up	12:06:59 - 12:36:59	3276
Reno	12:22:18	-33.5	Dark	Up	38.9	294.9	Up	12:07:18 - 12:37:18	3276
Yerington	12:22:16	-33.0	Dark	Up	38.2	295.5	Up	12:07:16 - 12:37:16	3270
Hawthorne	12:22:13	-32.6	Dark	Up	37.6	296.0	Up	12:07:13 - 12:37:13	3264
Gimple	12:22:21	-34.3	Dark	Up	39.9	294.1	Up	12:07:21 - 12:37:21	3264
Portola	12:22:19	-34.0	Dark	Up	39.5	294.5	Up	12:07:19 - 12:37:19	3261
Greenville	12:22:21	-34.4	Dark	Up	39.9	294.0	Up	12:07:21 - 12:37:21	3260
Carson City	12:22:17	-33.5	Dark	Up	38.7	295.2	Up	12:07:17 - 12:37:17	3250
Beatty	12:22:07	-31.0	Dark	Up	35.6	297.8	Up	12:07:07 - 12:37:07	3247
Searchlight/Boulder City	12:22:01	-29.4	Dark	Up	33.6	299.2	Up	12:07:01 - 12:37:01	3245
Quincy	12:22:21	-34.4	Dark	Up	39.8	294.2	Up	12:07:21 - 12:37:21	3244
Laughlin/Bullhead City	12:22:00	-29.1	Dark	Up	33.2	299.5	Up	12:07:00 - 12:37:00	3243
Gardnerville	12:22:16	-33.4	Dark	Up	38.6	295.4	Up	12:07:16 - 12:37:16	3234
Mohave Valley	12:21:59	-29.1	Dark	Up	33.1	299.7	Up	12:06:59 - 12:36:59	3223
Lake Havasu City	12:21:58	-28.8	Dark	Up	32.7	300.0	Up	12:06:58 - 12:36:58	3208
Lee Vining	12:22:12	-32.9	Dark	Up	37.7	296.3	Up	12:07:12 - 12:37:12	3194
Bishop	12:22:10	-32.3	Dark	Up	37.0	296.9	Up	12:07:10 - 12:37:10	3189
Parker	12:21:57	-28.7	Dark	Up	32.5	300.2	Up	12:06:57 - 12:36:57	3183
Lone Pine	12:22:07	-32.0	Dark	Up	36.4	297.5	Up	12:07:07 - 12:37:07	3150
Blythe	12:21:55	-28.9	Dark	Up	32.5	300.4	Up	12:06:55 - 12:36:55	3125
Yuma	12:21:53	-28.8	Dark	Up	32.1	300.8	Up	12:06:53 - 12:36:53	3052
Calipatria	12:21:55	-29.6	Dark	Up	32.9	300.4	Up	12:06:55 - 12:36:55	3031
Idyllwild	12:21:58	-30.7	Dark	Up	34.1	299.7	Up	12:06:58 - 12:36:58	3007
Wildwood	12:22:01	-32.3	Dark	Up	35.6	299.0	Up	12:07:01 - 12:37:01	2923
CPSLO	12:22:07	-34.0	Dark	Up	37.7	297.6	Up	12:07:07 - 12:37:07	2899

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 119315, (2020/01/13 12:25UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1 13.86  36
66 Aur         07:24:08.5 +40:40:20  5.2  1.13  44
PPM 049739     07:17:40.5 +40:56:41  8.2  0.24  45
119315         07:18:10.3 +40:43:21 15.9        45
Positions are for J2000

Event circumstances last updated at 2019/06/07 23:09:44 UT

RECON