RECON: TNO occultation with 28978

Event between (28978) Ixion and star GA0600:27346967 with event index number of 278576

Geocentric closest approach at 2020/07/18 07:31:01 UTC

J2000 position of star is 17:51:54.6 -29:49:42
Equinox of date position of star is 17:53:13.3 -29:49:55
Stellar brightness G=16.1, use SENSEUP=128
Star is 173 degrees from the moon. Moon is 7% illuminated.
TNO apparent brightness V=25.9

[RECON map]
TNO is 39.0 AU from the Sun and 38.1 AU from the Earth.
The TNO is moving 21.5 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 229 seconds.
The 1-sigma cross-track error in the shadow position is 2329 km.
The sky-plane scale is 27601.6 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=1148.2 km assuming a 5% albedo -- 2.8 sec chord
Diameter=468.7 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 28978, (2020/07/18 07:31UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:40.2 -26:28:33  0.9 18.48 163
34Ups Sco      17:32:09.8 -37:18:37  2.7  8.67 166
PPM 296839     17:50:30.6 -31:42:30  4.9  1.96 171
PPM 296917     17:53:30.8 -30:09:19  8.4  0.33 173
PPM 267409     17:52:43.6 -29:58:01  9.6  0.17 173
28978          17:53:13.6 -29:49:55 16.1       173
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 3.9 sigma about the mid-time.
The median site spacing is 8.6 km RECON observability=0.2 and success probability=2.8%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Victoria	07:30:06	-19.7	Dark	Down	10.1	195.5	Really Low	07:15:06 - 07:45:06	305
Clarence Fulton	07:29:56	-18.4	Dark	Down	7.6	198.9	Really Low	07:14:56 - 07:44:56	299
Peachland	07:29:57	-18.9	Dark	Down	8.2	198.6	Really Low	07:14:57 - 07:44:57	294
Kelowna	07:29:56	-18.8	Dark	Down	8.0	198.8	Really Low	07:14:56 - 07:44:56	293
Summerland	07:29:56	-19.1	Dark	Down	8.3	198.7	Really Low	07:14:56 - 07:44:56	289
Penticton	07:29:56	-19.1	Dark	Down	8.4	198.8	Really Low	07:14:56 - 07:44:56	286
Oliver	07:29:55	-19.5	Dark	Down	8.7	198.8	Really Low	07:14:55 - 07:44:55	278
Anarchist Mountain Observatory	07:29:54	-19.7	Dark	Down	8.8	198.9	Really Low	07:14:54 - 07:44:54	273
Tonasket	07:29:54	-20.0	Dark	Down	9.1	198.9	Really Low	07:14:54 - 07:44:54	265
Okanogan	07:29:54	-20.3	Dark	Down	9.5	198.8	Really Low	07:14:54 - 07:44:54	259
Brewster	07:29:54	-20.5	Dark	Down	9.8	198.6	Really Low	07:14:54 - 07:44:54	254
Manson/Chelan	07:29:55	-20.7	Dark	Down	10.0	198.3	Really Low	07:14:55 - 07:44:55	253
Entiat	07:29:55	-20.9	Dark	Down	10.3	198.3	Really Low	07:14:55 - 07:44:55	248
Wenatchee	07:29:55	-21.1	Dark	Down	10.5	198.2	Really Low	07:14:55 - 07:44:55	243
Ellensburg	07:29:55	-21.5	Dark	Down	11.0	198.1	Really Low	07:14:55 - 07:44:55	235
Yakima	07:29:55	-21.9	Dark	Down	11.4	198.1	Really Low	07:14:55 - 07:44:55	223
Toppenish/White Swan	07:29:54	-22.2	Dark	Down	11.5	198.2	Really Low	07:14:54 - 07:44:54	215
Goldendale	07:29:55	-22.7	Dark	Down	12.2	197.9	Really Low	07:14:55 - 07:44:55	205
The Dalles	07:29:56	-22.8	Dark	Down	12.4	197.6	Really Low	07:14:56 - 07:44:56	202
Pasco	07:29:50	-22.4	Dark	Down	11.4	199.3	Really Low	07:14:50 - 07:44:50	195
Maupin	07:29:55	-23.3	Dark	Down	12.8	197.7	Really Low	07:14:55 - 07:44:55	188
PNWRO	07:29:48	-22.7	Dark	Down	11.6	199.5	Really Low	07:14:48 - 07:44:48	186
Sisters	07:29:55	-24.1	Dark	Down	13.8	197.3	Really Low	07:14:55 - 07:44:55	167
Redmond	07:29:54	-24.1	Dark	Down	13.7	197.7	Really Low	07:14:54 - 07:44:54	161
Bend	07:29:54	-24.3	Dark	Down	13.9	197.6	Really Low	07:14:54 - 07:44:54	156
Oregon Observatory	07:29:54	-24.5	Dark	Down	14.1	197.5	Really Low	07:14:54 - 07:44:54	152
La Pine/Gilchrist	07:29:54	-24.7	Dark	Down	14.3	197.4	Really Low	07:14:54 - 07:44:54	146
North Lake	07:29:52	-25.2	Dark	Down	14.6	198.0	Really Low	07:14:52 - 07:44:52	124
Paisley	07:29:50	-25.8	Dark	Down	15.1	198.3	Really Low	07:14:50 - 07:44:50	101
Klamath Falls	07:29:54	-26.1	Dark	Down	15.8	197.3	Really Low	07:14:54 - 07:44:54	99
Lakeview	07:29:49	-26.3	Dark	Down	15.5	198.6	Really Low	07:14:49 - 07:44:49	80
Cedarville	07:29:47	-27.0	Dark	Down	16.1	198.8	Really Low	07:14:47 - 07:44:47	53
Fall River/Burney	07:29:51	-27.3	Dark	Down	16.8	197.8	Really Low	07:14:51 - 07:44:51	51
Susanville	07:29:48	-28.0	Dark	Down	17.3	198.4	Really Low	07:14:48 - 07:44:48	17
Greenville	07:29:48	-28.2	Dark	Down	17.6	198.2	Really Low	07:14:48 - 07:44:48	10
Gimple	07:29:48	-28.2	Dark	Down	17.6	198.3	Really Low	07:14:48 - 07:44:48	9
Quincy	07:29:48	-28.4	Dark	Down	17.8	198.2	Really Low	07:14:48 - 07:44:48	2
Portola	07:29:46	-28.6	Dark	Down	17.8	198.7	Really Low	07:14:46 - 07:44:46	-9
Reno	07:29:43	-29.0	Dark	Down	17.9	199.3	Really Low	07:14:43 - 07:44:43	-29
Carson City	07:29:43	-29.3	Dark	Down	18.2	199.3	Really Low	07:14:43 - 07:44:43	-44
Gardnerville	07:29:42	-29.6	Dark	Down	18.4	199.4	Really Low	07:14:42 - 07:44:42	-55
Yerington	07:29:40	-29.6	Dark	Down	18.2	199.9	Really Low	07:14:40 - 07:44:40	-62
Hawthorne	07:29:38	-30.1	Dark	Down	18.5	200.4	Really Low	07:14:38 - 07:44:38	-89
Lee Vining	07:29:39	-30.6	Dark	Down	19.2	200.0	Really Low	07:14:39 - 07:44:39	-106
Tonopah	07:29:32	-30.7	Dark	Down	18.6	201.6	Really Low	07:14:32 - 07:44:32	-131
Bishop	07:29:35	-31.3	Dark	Down	19.6	200.7	Really Low	07:14:35 - 07:44:35	-144
Beatty	07:29:29	-31.9	Dark	Down	19.5	202.2	Really Low	07:14:29 - 07:44:29	-192
CPSLO	07:29:42	-33.0	Dark	Down	22.1	199.0	Low	07:14:42 - 07:44:42	-208
Indian Springs	07:29:24	-32.3	Dark	Down	19.5	203.1	Really Low	07:14:24 - 07:44:24	-225
Henderson	07:29:21	-32.9	Dark	Down	19.8	203.8	Really Low	07:14:21 - 07:44:21	-264
Niwot	07:28:53	-28.8	Dark	Down	12.6	211.2	Really Low	07:13:53 - 07:43:53	-279
SwRI	07:28:54	-28.9	Dark	Down	12.8	211.1	Really Low	07:13:54 - 07:43:54	-282
Searchlight/Boulder City	07:29:20	-33.5	Dark	Down	20.3	203.9	Low	07:14:20 - 07:44:20	-292
Wildwood	07:29:32	-34.5	Dark	Down	22.7	201.0	Low	07:14:32 - 07:44:32	-298
Laughlin/Bullhead City	07:29:18	-33.8	Dark	Down	20.4	204.3	Low	07:14:18 - 07:44:18	-314
Patrick	07:29:16	-33.6	Dark	Down	20.0	204.8	Really Low	07:14:16 - 07:44:16	-315
Kingman/Dolan Springs	07:29:16	-33.8	Dark	Down	20.2	204.7	Low	07:14:16 - 07:44:16	-322
Mohave Valley	07:29:18	-34.1	Dark	Down	20.7	204.3	Low	07:14:18 - 07:44:18	-328
DCO	07:29:13	-33.9	Dark	Down	20.0	205.5	Low	07:14:13 - 07:44:13	-343
Idyllwild	07:29:25	-35.1	Dark	Down	22.4	202.7	Low	07:14:25 - 07:44:25	-347
Lake Havasu City	07:29:17	-34.5	Dark	Down	21.0	204.6	Low	07:14:17 - 07:44:17	-352
Parker	07:29:16	-34.8	Dark	Down	21.3	204.7	Low	07:14:16 - 07:44:16	-371
Blythe	07:29:16	-35.3	Dark	Down	21.8	204.5	Low	07:14:16 - 07:44:16	-393
Calipatria	07:29:20	-35.8	Dark	Down	22.6	203.8	Low	07:14:20 - 07:44:20	-401
Yuma	07:29:15	-36.3	Dark	Down	22.7	204.6	Low	07:14:15 - 07:44:15	-441
George/Scottsdale	07:29:06	-35.4	Dark	Down	20.8	206.8	Low	07:14:06 - 07:44:06	-441

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 28978, (2020/07/18 07:31UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 18.48 163
34Ups Sco      17:30:45.8 -37:17:46  2.7  8.67 166
PPM 296839     17:49:10.5 -31:42:12  4.9  1.96 171
PPM 296917     17:52:11.7 -30:09:06  8.4  0.33 173
PPM 267409     17:51:24.6 -29:57:47  9.6  0.17 173
28978          17:51:54.6 -29:49:42 16.1       173
Positions are for J2000

Event circumstances last updated at 2020/06/21 05:11:17 UT

RECON