RECON: TNO occultation with 576257

Event between (576257) 12JD68 and star GA0960:08115922 with event index number of 2800779

Geocentric closest approach at 2029/06/28 08:07:49 UTC

J2000 position of star is 18:33:08.1 +06:51:44
Equinox of date position of star is 18:34:15.0 +06:52:51
Stellar brightness G=16.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 36 degrees from the moon. Moon is 94% illuminated.
Apparent brightness V=22.8

[RECON map]
Object is 28.3 AU from the Sun and 27.4 AU from the Earth.
Apparent velocity is 22.9 km/sec on the sky relative to the star, or, 4.2 arcsec/hr.
The 1-sigma error in the time of the event is 380 seconds.
The 1-sigma cross-track error in the shadow position is 1148 km.
The sky-plane scale is 19872.0 km/arcsec.

The object has an absolute magnitude Hv=8.2
Diameter=138.0 km assuming a 5% albedo -- 6.1 sec chord
Diameter=56.4 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 

Star training set for 576257, (2029/06/28 08:08UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:56.2 +38:48:44  0.0 31.93  61
60Bet Oph      17:44:55.8 +04:33:25  2.8 12.56  45
PPM 166175     18:38:05.2 +06:41:51  5.8  0.89  36
PPM 166036     18:33:27.7 +06:48:11  7.6  0.29  36
PPM 166072     18:34:38.2 +06:45:40  8.8  0.13  36
576257         18:34:34.0 +06:53:11 16.2        36
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 2.4 sigma about the mid-time.
The median site spacing is 27.6 km RECON observability=1.0 and success probability=1.7%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Sleaford	08:06:59	-13.5	AT	Up	43.3	199.6	Up	07:51:59 - 08:21:59	5149
Kamloops	08:07:41	-16.1	AT	Up	46.2	180.0	Up	07:52:41 - 08:22:41	5067
Kelowna	08:07:39	-16.9	AT	Up	47.0	181.3	Up	07:52:39 - 08:22:39	4998
Peachland	08:07:40	-17.0	AT	Up	47.1	180.8	Up	07:52:40 - 08:22:40	4991
Summerland	08:07:39	-17.1	AT	Up	47.3	181.0	Up	07:52:39 - 08:22:39	4978
Penticton	08:07:39	-17.2	AT	Up	47.3	181.1	Up	07:52:39 - 08:22:39	4972
Oliver	08:07:39	-17.6	AT	Up	47.7	181.1	Up	07:52:39 - 08:22:39	4943
Anarchist Mountain Observatory	08:07:38	-17.7	AT	Up	47.8	181.4	Up	07:52:38 - 08:22:38	4929
Victoria	08:07:52	-18.2	Dark	Up	48.3	175.5	Up	07:52:52 - 08:22:52	4902
Okanogan	08:07:39	-18.4	Dark	Up	48.5	181.1	Up	07:52:39 - 08:22:39	4876
Brewster	08:07:40	-18.6	Dark	Up	48.8	180.8	Up	07:52:40 - 08:22:40	4854
Manson/Chelan	08:07:41	-18.9	Dark	Up	49.0	180.3	Up	07:52:41 - 08:22:41	4838
Wenatchee	08:07:42	-19.3	Dark	Up	49.5	180.0	Up	07:52:42 - 08:22:42	4798
Ellensburg	08:07:43	-19.7	Dark	Up	49.9	179.7	Up	07:52:43 - 08:22:43	4764
Yakima	08:07:43	-20.2	Dark	Up	50.3	179.7	Up	07:52:43 - 08:22:43	4729
Toppenish/White Swan	08:07:42	-20.4	Dark	Up	50.5	179.9	Up	07:52:42 - 08:22:42	4710
PNWRO	08:07:38	-20.7	Dark	Up	50.8	182.3	Up	07:52:38 - 08:22:38	4674
The Dalles	08:07:45	-21.1	Dark	Up	51.3	178.7	Up	07:52:45 - 08:22:45	4646
Maupin	08:07:45	-21.6	Dark	Up	51.7	178.8	Up	07:52:45 - 08:22:45	4609
Sisters	08:07:47	-22.4	Dark	Up	52.6	178.0	Up	07:52:47 - 08:22:47	4535
Bend	08:07:46	-22.7	Dark	Up	52.8	178.4	Up	07:52:46 - 08:22:46	4513
Oregon Observatory	08:07:46	-22.9	Dark	Up	53.0	178.2	Up	07:52:46 - 08:22:46	4498
Chiloquin	08:07:48	-24.2	Dark	Up	54.3	177.5	Up	07:52:48 - 08:22:48	4382
Klamath Falls	08:07:48	-24.5	Dark	Up	54.6	177.6	Up	07:52:48 - 08:22:48	4351
Cedarville	08:07:42	-25.2	Dark	Up	55.3	180.3	Up	07:52:42 - 08:22:42	4281
Fall River/Burney	08:07:47	-25.7	Dark	Up	55.8	178.2	Up	07:52:47 - 08:22:47	4242
Greenville	08:07:45	-26.6	Dark	Up	56.7	178.9	Up	07:52:45 - 08:22:45	4156
Gimple	08:07:45	-26.6	Dark	Up	56.7	179.1	Up	07:52:45 - 08:22:45	4156
Quincy	08:07:45	-26.8	Dark	Up	56.9	178.9	Up	07:52:45 - 08:22:45	4137
Dunrhomin	08:06:48	-24.8	Dark	Up	54.0	205.9	Up	07:51:48 - 08:21:48	4127
Portola	08:07:44	-26.9	Dark	Up	57.1	179.8	Up	07:52:44 - 08:22:44	4124
Nikitin	08:06:48	-25.0	Dark	Up	54.2	205.9	Up	07:51:48 - 08:21:48	4109
CU-SBO	08:06:48	-25.1	Dark	Up	54.3	205.9	Up	07:51:48 - 08:21:48	4103
Reno	08:07:41	-27.2	Dark	Up	57.3	181.0	Up	07:52:41 - 08:22:41	4097
Carson City	08:07:41	-27.5	Dark	Up	57.7	181.0	Up	07:52:41 - 08:22:41	4063
Yerington	08:07:39	-27.7	Dark	Up	57.9	182.2	Up	07:52:39 - 08:22:39	4042
Gardnerville	08:07:41	-27.8	Dark	Up	57.9	181.1	Up	07:52:41 - 08:22:41	4040
Hawthorne	08:07:37	-28.2	Dark	Up	58.3	183.2	Up	07:52:37 - 08:22:37	3996
Lee Vining	08:07:39	-28.8	Dark	Up	58.9	182.3	Up	07:52:39 - 08:22:39	3945
Bishop	08:07:36	-29.3	Dark	Up	59.4	183.8	Up	07:52:36 - 08:22:36	3885
Beatty	08:07:30	-29.7	Dark	Up	59.8	187.0	Up	07:52:30 - 08:22:30	3835
Patrick	08:07:19	-30.9	Dark	Up	60.9	193.1	Up	07:52:19 - 08:22:19	3681
Laughlin/Bullhead City	08:07:21	-31.3	Dark	Up	61.2	191.8	Up	07:52:21 - 08:22:21	3659
Lake Havasu City	08:07:20	-31.9	Dark	Up	61.8	192.6	Up	07:52:20 - 08:22:20	3592
Wildwood	08:07:37	-32.6	Dark	Up	62.7	183.7	Up	07:52:37 - 08:22:37	3568
Idyllwild	08:07:30	-32.9	Dark	Up	62.9	187.8	Up	07:52:30 - 08:22:30	3526
George/Scottsdale	08:07:11	-32.4	Dark	Up	62.1	198.0	Up	07:52:11 - 08:22:11	3509
Calipatria	08:07:25	-33.4	Dark	Up	63.4	190.6	Up	07:52:25 - 08:22:25	3460
Yuma	08:07:22	-33.7	Dark	Up	63.6	192.7	Up	07:52:22 - 08:22:22	3415

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 576257, (2029/06/28 08:08UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:08  0.0 31.93  61
60Bet Oph      17:43:28.3 +04:34:06  2.8 12.56  45
PPM 166175     18:36:39.1 +06:40:16  5.8  0.89  36
PPM 166036     18:32:01.7 +06:46:47  7.6  0.29  36
PPM 166072     18:33:12.1 +06:44:13  8.8  0.13  36
576257         18:33:08.1 +06:51:44 16.2        36
Positions are for J2000

Event circumstances last updated at 2022/12/15 05:19:30 UT

RECON