RECON: TNO occultation with 12UP177

Event between 12UP177 and star GA1180:00340600 with event index number of 314168

Geocentric closest approach at 2019/12/01 05:15:35 UTC

J2000 position of star is 02:24:14.8 +29:21:19
Equinox of date position of star is 02:25:23.2 +29:26:33
Stellar brightness G=14.0, use SENSEUP=64
Star is 99 degrees from the moon. Moon is 22% illuminated.
TNO apparent brightness V=24.2

[RECON map]
TNO is 40.6 AU from the Sun and 39.7 AU from the Earth.
The TNO is moving 22.9 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 273 seconds.
The 1-sigma cross-track error in the shadow position is 3724 km.
The sky-plane scale is 28811.7 km/arcsec.

The TNO has an absolute magnitude Hv=8.1
Diameter=143.9 km assuming a 5% albedo -- 6.3 sec chord
Diameter=58.7 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 12UP177, (2019/12/01 05:16UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:03.9 +16:32:52  0.8 32.78 125
Hamal          02:08:18.0 +23:33:21  2.0  7.02  93
12 Tri         02:29:20.4 +29:45:26  5.3  0.91 100
PPM 091647     02:25:51.6 +29:20:03  8.3  0.15  99
12UP177        02:25:24.9 +29:26:41 14.0        99
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 3.3 sigma about the mid-time.
The median site spacing is 19.6 km RECON observability=1.0 and success probability=13.4%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Kelowna	05:15:08	-49.1	Dark	Down	68.8	163.2	Up	05:00:08 - 05:30:08	1387
Summerland	05:15:09	-49.1	Dark	Down	69.0	162.3	Up	05:00:09 - 05:30:09	1373
Penticton	05:15:09	-49.2	Dark	Down	69.1	162.5	Up	05:00:09 - 05:30:09	1363
Okanagan Falls	05:15:10	-49.3	Dark	Down	69.3	162.3	Up	05:00:10 - 05:30:10	1347
Oliver	05:15:10	-49.4	Dark	Down	69.5	162.3	Up	05:00:10 - 05:30:10	1333
Anarchist Mountain Observatory	05:15:10	-49.6	Dark	Down	69.7	162.6	Up	05:00:10 - 05:30:10	1310
Oroville	05:15:10	-49.6	Dark	Down	69.7	162.4	Up	05:00:10 - 05:30:10	1307
Tonasket	05:15:11	-49.7	Dark	Down	69.9	162.2	Up	05:00:11 - 05:30:11	1286
Okanogan	05:15:12	-49.8	Dark	Down	70.2	161.5	Up	05:00:12 - 05:30:12	1263
Brewster	05:15:13	-49.8	Dark	Down	70.4	160.8	Up	05:00:13 - 05:30:13	1247
Manson/Chelan	05:15:14	-49.6	Dark	Down	70.6	159.7	Up	05:00:14 - 05:30:14	1244
Entiat	05:15:16	-49.7	Dark	Down	70.8	159.3	Up	05:00:16 - 05:30:16	1228
Wenatchee	05:15:16	-49.8	Dark	Down	71.0	158.8	Up	05:00:16 - 05:30:16	1210
Ellensburg	05:15:18	-49.8	Dark	Down	71.3	157.8	Up	05:00:18 - 05:30:18	1183
Yakima	05:15:19	-50.0	Dark	Down	71.7	157.3	Up	05:00:19 - 05:30:19	1148
Toppenish/White Swan	05:15:19	-50.2	Dark	Down	71.9	157.5	Up	05:00:19 - 05:30:19	1123
Goldendale	05:15:22	-50.1	Dark	Down	72.3	155.7	Up	05:00:22 - 05:30:22	1092
The Dalles	05:15:24	-50.0	Dark	Down	72.4	154.4	Up	05:00:24 - 05:30:24	1088
Pasco	05:15:16	-51.0	Dark	Down	72.3	160.8	Up	05:00:16 - 05:30:16	1059
Maupin	05:15:24	-50.2	Dark	Down	72.8	154.1	Up	05:00:24 - 05:30:24	1047
George/Umatilla	05:15:18	-51.0	Dark	Down	72.6	159.8	Up	05:00:18 - 05:30:18	1039
PNWRO	05:15:16	-51.3	Dark	Down	72.6	161.2	Up	05:00:16 - 05:30:16	1028
Madras/Culver	05:15:26	-50.4	Dark	Down	73.3	153.2	Up	05:00:26 - 05:30:26	1001
Sisters	05:15:28	-50.2	Dark	Down	73.4	151.5	Up	05:00:28 - 05:30:28	991
Redmond	05:15:27	-50.5	Dark	Down	73.6	152.5	Up	05:00:27 - 05:30:27	971
Bend	05:15:28	-50.5	Dark	Down	73.7	151.8	Up	05:00:28 - 05:30:28	959
Oregon Observatory	05:15:29	-50.5	Dark	Down	73.8	151.2	Up	05:00:29 - 05:30:29	949
La Pine/Gilchrist	05:15:30	-50.5	Dark	Down	74.0	150.7	Up	05:00:30 - 05:30:30	934
North Lake	05:15:29	-51.1	Dark	Down	74.6	151.7	Up	05:00:29 - 05:30:29	869
Chiloquin	05:15:34	-50.7	Dark	Down	74.8	147.6	Up	05:00:34 - 05:30:34	852
Klamath Falls	05:15:35	-50.8	Dark	Down	75.2	147.2	Up	05:00:35 - 05:30:35	818
Paisley	05:15:29	-51.5	Dark	Down	75.2	151.8	Up	05:00:29 - 05:30:29	804
Tulelake	05:15:34	-51.1	Dark	Down	75.5	147.5	Up	05:00:34 - 05:30:34	780
Lakeview	05:15:30	-51.8	Dark	Down	75.7	151.5	Up	05:00:30 - 05:30:30	750
Fall River/Burney	05:15:37	-51.5	Dark	Down	76.3	145.8	Up	05:00:37 - 05:30:37	695
Cedarville	05:15:31	-52.2	Dark	Down	76.4	150.8	Up	05:00:31 - 05:30:31	683
Susanville	05:15:36	-52.2	Dark	Down	77.1	146.8	Up	05:00:36 - 05:30:36	605
Greenville	05:15:38	-52.1	Dark	Down	77.2	145.2	Up	05:00:38 - 05:30:38	593
Gimple	05:15:37	-52.1	Dark	Down	77.3	145.4	Up	05:00:37 - 05:30:37	589
Quincy	05:15:38	-52.1	Dark	Down	77.4	144.6	Up	05:00:38 - 05:30:38	575
Portola	05:15:37	-52.5	Dark	Down	77.7	146.0	Up	05:00:37 - 05:30:37	541
Reno	05:15:36	-53.1	Dark	Down	78.2	147.7	Up	05:00:36 - 05:30:36	487
Carson City	05:15:36	-53.2	Dark	Down	78.5	146.8	Up	05:00:36 - 05:30:36	454
Gardnerville	05:15:37	-53.3	Dark	Down	78.8	146.3	Up	05:00:37 - 05:30:37	429
Yerington	05:15:35	-53.7	Dark	Down	79.0	148.8	Up	05:00:35 - 05:30:35	407
Hawthorne	05:15:34	-54.3	Dark	Down	79.6	149.7	Up	05:00:34 - 05:30:34	340
Lee Vining	05:15:38	-54.1	Dark	Down	79.8	146.0	Up	05:00:38 - 05:30:38	310
Tonopah	05:15:31	-55.4	Dark	Down	80.5	154.9	Up	05:00:31 - 05:30:31	231
Bishop	05:15:37	-54.8	Dark	Down	80.7	147.3	Up	05:00:37 - 05:30:37	221
CPSLO	05:15:49	-53.5	Dark	Down	81.0	129.2	Up	05:00:49 - 05:30:49	139
Lone Pine	05:15:38	-55.2	Dark	Down	81.4	146.3	Up	05:00:38 - 05:30:38	135
Beatty	05:15:33	-56.1	Dark	Down	81.7	154.1	Up	05:00:33 - 05:30:33	102
Indian Springs	05:15:30	-57.1	Dark	Down	82.3	159.4	Up	05:00:30 - 05:30:30	22
Henderson	05:15:29	-57.7	Dark	Down	83.0	162.6	Up	05:00:29 - 05:30:29	-60
Niwot	05:14:47	-62.8	Dark	Down	77.7	211.1	Up	04:59:47 - 05:29:47	-65
SwRI	05:14:48	-62.8	Dark	Down	77.8	211.0	Up	04:59:48 - 05:29:48	-72
Wildwood	05:15:46	-55.4	Dark	Down	83.1	131.6	Up	05:00:46 - 05:30:46	-74
Searchlight/Boulder City	05:15:30	-58.0	Dark	Down	83.6	161.6	Up	05:00:30 - 05:30:30	-117
Laughlin/Bullhead City	05:15:29	-58.3	Dark	Down	84.0	163.4	Up	05:00:29 - 05:30:29	-161
Patrick	05:15:26	-58.8	Dark	Down	83.8	169.5	Up	05:00:26 - 05:30:26	-170
Kingman/Dolan Springs	05:15:28	-58.7	Dark	Down	84.0	167.6	Up	05:00:28 - 05:30:28	-183
Mohave Valley	05:15:30	-58.4	Dark	Down	84.2	162.7	Up	05:00:30 - 05:30:30	-188
Idyllwild	05:15:40	-57.0	Dark	Down	84.4	140.5	Up	05:00:40 - 05:30:40	-198
DCO	05:15:25	-59.4	Dark	Down	84.2	175.0	Up	05:00:25 - 05:30:25	-231
Lake Havasu City	05:15:30	-58.7	Dark	Down	84.7	163.7	Up	05:00:30 - 05:30:30	-237
Parker	05:15:31	-58.8	Dark	Down	85.0	162.9	Up	05:00:31 - 05:30:31	-272
Blythe	05:15:33	-58.7	Dark	Down	85.4	157.9	Up	05:00:33 - 05:30:33	-309
Calipatria	05:15:38	-58.1	Dark	Down	85.5	145.9	Up	05:00:38 - 05:30:38	-312
Yuma	05:15:36	-58.9	Dark	Down	86.2	152.2	Up	05:00:36 - 05:30:36	-396

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 12UP177, (2019/12/01 05:16UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 32.78 125
Hamal          02:07:10.7 +23:27:42  2.0  7.02  93
12 Tri         02:28:10.0 +29:40:08  5.3  0.91 100
PPM 091647     02:24:41.5 +29:14:41  8.3  0.15  99
12UP177        02:24:14.8 +29:21:19 14.0        99
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:56:25 UT

RECON