RECON: TNO occultation with 28978

Event between (28978) Ixion and star GA0580:31205246 with event index number of 1109713

Geocentric closest approach at 2022/06/15 07:56:31 UTC

J2000 position of star is 18:08:23.2 -30:45:29
Equinox of date position of star is 18:09:49.1 -30:45:11
Stellar brightness G=15.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 6 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=19.4

[RECON map]
TNO is 38.5 AU from the Sun and 37.5 AU from the Earth.
The TNO is moving 24.6 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 261 seconds.
The 1-sigma cross-track error in the shadow position is 2973 km.
The sky-plane scale is 27181.8 km/arcsec.

The TNO has an absolute magnitude Hv=3.6
Diameter=1148.2 km assuming a 5% albedo -- 46.7 sec chord
Diameter=468.7 km assuming a 30% albedo -- 19.1 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 28978, (2022/06/15 07:56UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.3 -26:28:48  0.9 22.10  26
Kap Sco        17:44:02.6 -39:02:21  2.4  9.82  15
PPM 297335     18:11:32.7 -30:43:22  5.2  0.37   5
PPM 297290     18:09:46.1 -31:00:04  8.4  0.25   6
PPM 297262     18:08:48.4 -30:39:34  9.1  0.24   6
28978          18:09:50.1 -30:45:11 15.6         5
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 3.4 sigma about the mid-time.
The median site spacing is 18.1 km RECON observability=0.3 and success probability=0.0%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Kamloops	07:56:33	-16.0	AT	Up	8.1	171.6	Really Low	07:41:33 - 08:11:33	13908
Kelowna	07:56:32	-16.8	AT	Up	9.0	172.3	Really Low	07:41:32 - 08:11:32	13894
Peachland	07:56:32	-16.9	AT	Up	9.1	172.1	Really Low	07:41:32 - 08:11:32	13893
Summerland	07:56:33	-17.1	AT	Up	9.2	172.1	Really Low	07:41:33 - 08:11:33	13890
Penticton	07:56:32	-17.2	AT	Up	9.3	172.2	Really Low	07:41:32 - 08:11:32	13888
Oliver	07:56:32	-17.5	AT	Up	9.7	172.2	Really Low	07:41:32 - 08:11:32	13882
Anarchist Mountain Observatory	07:56:32	-17.7	AT	Up	9.9	172.4	Really Low	07:41:32 - 08:11:32	13879
Tonasket	07:56:32	-18.0	AT	Up	10.2	172.3	Really Low	07:41:32 - 08:11:32	13873
Victoria	07:56:43	-18.1	Dark	Up	9.9	168.9	Really Low	07:41:43 - 08:11:43	13869
Okanogan	07:56:33	-18.3	Dark	Up	10.5	172.2	Really Low	07:41:33 - 08:11:33	13866
Brewster	07:56:34	-18.6	Dark	Up	10.7	172.0	Really Low	07:41:34 - 08:11:34	13861
Sleaford	07:55:54	-13.8	AT	Up	7.1	183.9	Really Low	07:40:54 - 08:10:54	13857
Manson/Chelan	07:56:34	-18.8	Dark	Up	10.9	171.7	Really Low	07:41:34 - 08:11:34	13857
Wenatchee	07:56:36	-19.3	Dark	Up	11.3	171.5	Really Low	07:41:36 - 08:11:36	13847
Ellensburg	07:56:36	-19.7	Dark	Up	11.7	171.3	Really Low	07:41:36 - 08:11:36	13838
Yakima	07:56:37	-20.1	Dark	Up	12.1	171.3	Really Low	07:41:37 - 08:11:37	13828
Toppenish/White Swan	07:56:36	-20.3	Dark	Up	12.4	171.4	Really Low	07:41:36 - 08:11:36	13823
PNWRO	07:56:33	-20.7	Dark	Up	12.9	172.7	Really Low	07:41:33 - 08:11:33	13813
Goldendale	07:56:38	-20.8	Dark	Up	12.9	171.0	Really Low	07:41:38 - 08:11:38	13810
The Dalles	07:56:39	-21.1	Dark	Up	13.0	170.7	Really Low	07:41:39 - 08:11:39	13804
Maupin	07:56:40	-21.5	Dark	Up	13.5	170.8	Really Low	07:41:40 - 08:11:40	13794
Sisters	07:56:41	-22.4	Dark	Up	14.3	170.3	Really Low	07:41:41 - 08:11:41	13771
Bend	07:56:41	-22.6	Dark	Up	14.6	170.6	Really Low	07:41:41 - 08:11:41	13764
Oregon Observatory	07:56:41	-22.8	Dark	Up	14.7	170.4	Really Low	07:41:41 - 08:11:41	13759
North Lake	07:56:40	-23.4	Dark	Up	15.4	170.9	Really Low	07:41:40 - 08:11:40	13741
Chiloquin	07:56:43	-24.1	Dark	Up	16.0	170.0	Really Low	07:41:43 - 08:11:43	13720
Klamath Falls	07:56:43	-24.4	Dark	Up	16.3	170.1	Really Low	07:41:43 - 08:11:43	13709
Lakeview	07:56:39	-24.5	Dark	Up	16.5	171.3	Really Low	07:41:39 - 08:11:39	13708
Cedarville	07:56:39	-25.2	Dark	Up	17.2	171.4	Really Low	07:41:39 - 08:11:39	13686
Fall River/Burney	07:56:44	-25.6	Dark	Up	17.5	170.3	Really Low	07:41:44 - 08:11:44	13670
Susanville	07:56:41	-26.3	Dark	Up	18.2	171.0	Really Low	07:41:41 - 08:11:41	13649
Greenville	07:56:43	-26.5	Dark	Up	18.5	170.7	Really Low	07:41:43 - 08:11:43	13639
Gimple	07:56:41	-26.5	Dark	Up	18.5	170.8	Really Low	07:41:41 - 08:11:41	13639
Quincy	07:56:43	-26.7	Dark	Up	18.7	170.7	Really Low	07:41:43 - 08:11:43	13632
Portola	07:56:41	-26.9	Dark	Up	18.8	171.1	Really Low	07:41:41 - 08:11:41	13627
Reno	07:56:39	-27.1	Dark	Up	19.2	171.7	Really Low	07:41:39 - 08:11:39	13617
Carson City	07:56:39	-27.5	Dark	Up	19.5	171.7	Really Low	07:41:39 - 08:11:39	13604
Yerington	07:56:38	-27.7	Dark	Up	19.8	172.2	Really Low	07:41:38 - 08:11:38	13596
Gardnerville	07:56:39	-27.7	Dark	Up	19.8	171.7	Really Low	07:41:39 - 08:11:39	13595
Hawthorne	07:56:36	-28.2	Dark	Up	20.3	172.7	Low	07:41:36 - 08:11:36	13577
Lee Vining	07:56:38	-28.7	Dark	Up	20.8	172.2	Low	07:41:38 - 08:11:38	13556
Tonopah	07:56:32	-28.6	Dark	Up	20.9	173.9	Low	07:41:32 - 08:11:32	13555
Dunrhomin	07:55:49	-25.2	Dark	Up	18.8	184.8	Really Low	07:40:49 - 08:10:49	13546
CU-SBO	07:55:50	-25.4	Dark	Up	19.1	184.7	Really Low	07:40:50 - 08:10:50	13538
Bishop	07:56:37	-29.3	Dark	Up	21.5	172.8	Low	07:41:37 - 08:11:37	13530
Beatty	07:56:30	-29.7	Dark	Up	22.1	174.3	Low	07:41:30 - 08:11:30	13506
Indian Springs	07:56:27	-30.0	Dark	Up	22.5	175.3	Low	07:41:27 - 08:11:27	13488
Henderson	07:56:25	-30.5	Dark	Up	23.1	175.9	Low	07:41:25 - 08:11:25	13462
Patrick	07:56:20	-31.1	Dark	Up	23.8	176.9	Low	07:41:20 - 08:11:20	13428
Laughlin/Bullhead City	07:56:23	-31.4	Dark	Up	24.0	176.3	Low	07:41:23 - 08:11:23	13421
Kingman/Dolan Springs	07:56:22	-31.3	Dark	Up	24.0	176.7	Low	07:41:22 - 08:11:22	13420
Mohave Valley	07:56:24	-31.6	Dark	Up	24.2	176.3	Low	07:41:24 - 08:11:24	13409
Lake Havasu City	07:56:22	-32.0	Dark	Up	24.7	176.5	Low	07:41:22 - 08:11:22	13389
Wildwood	07:56:38	-32.6	Dark	Up	24.7	172.5	Low	07:41:38 - 08:11:38	13388
Parker	07:56:23	-32.4	Dark	Up	25.0	176.5	Low	07:41:23 - 08:11:23	13373
Idyllwild	07:56:31	-32.9	Dark	Up	25.3	174.2	Low	07:41:31 - 08:11:31	13366
George/Scottsdale	07:56:14	-32.6	Dark	Up	25.5	178.8	Low	07:41:14 - 08:11:14	13337
Calipatria	07:56:27	-33.5	Dark	Up	25.9	175.3	Low	07:41:27 - 08:11:27	13331
Yuma	07:56:24	-33.8	Dark	Up	26.4	176.1	Low	07:41:24 - 08:11:24	13305

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, (2022/06/15 07:56UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 22.10  26
Kap Sco        17:42:29.3 -39:01:49  2.4  9.82  15
PPM 297335     18:10:05.8 -30:43:43  5.2  0.37   5
PPM 297290     18:08:19.1 -31:00:22  8.4  0.25   6
PPM 297262     18:07:21.6 -30:39:50  9.1  0.24   6
28978          18:08:23.2 -30:45:29 15.6         6
Positions are for J2000

Event circumstances last updated at 2022/03/15 01:04:47 UT

RECON