RECON: TNO occultation with 459865

Event between (459865) 13XZ8 and star GA0580:06786774 with event index number of 2281341

Geocentric closest approach at 2022/05/30 06:01:36 UTC

J2000 position of star is 13:24:55.2 -30:17:57
Equinox of date position of star is 13:26:10.4 -30:24:54
Stellar brightness G=15.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 141 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=19.1

[RECON map]
TNO is 8.5 AU from the Sun and 7.8 AU from the Earth.
The TNO is moving 14.7 km/sec on the sky relative to the star, or, 9.4 arcsec/hr.
The 1-sigma error in the time of the event is 26 seconds.
The 1-sigma cross-track error in the shadow position is 471 km.
The sky-plane scale is 5622.3 km/arcsec.

The TNO has an absolute magnitude Hv=9.6
Diameter=70.8 km assuming a 5% albedo -- 4.8 sec chord
Diameter=28.9 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 459865, (2022/05/30 06:02UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:22.6 -11:16:39  1.0 19.14 138
Iot Cen        13:21:51.9 -36:49:47  2.8  6.48 140
PPM 291197     13:18:08.2 -31:37:27  5.1  2.10 139
PPM 291435     13:30:14.0 -31:09:34  8.0  1.15 142
PPM 291340     13:25:44.4 -30:33:01 10.0  0.16 141
459865         13:26:10.6 -30:24:55 15.6       141
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 5.0 sigma about the mid-time.
The median site spacing is 18.6 km RECON observability=0.2 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)
Dunrhomin 06:05:26 -26.8 Dark Down 13.2 208.6 Really Low 06:02:49 - 06:08:04 5563
CU-SBO 06:05:25 -27.0 Dark Down 13.5 208.6 Really Low 06:02:48 - 06:08:03 5560
Sleaford 06:06:10 -15.2 AT Down 2.9 207.4 Really Low 06:03:32 - 06:08:47 5301
George/Scottsdale 06:05:26 -31.4 Dark Down 21.4 204.0 Low 06:02:49 - 06:08:04 5216
Patrick 06:05:41 -29.2 Dark Down 20.5 202.1 Low 06:03:03 - 06:08:18 5102
Kingman/Dolan Springs 06:05:41 -29.3 Dark Down 20.8 202.0 Low 06:03:04 - 06:08:19 5090
Lake Havasu City 06:05:39 -29.9 Dark Down 21.5 201.8 Low 06:03:02 - 06:08:17 5069
Parker 06:05:38 -30.2 Dark Down 21.8 201.9 Low 06:03:01 - 06:08:16 5069
Laughlin/Bullhead City 06:05:43 -29.2 Dark Down 20.9 201.5 Low 06:03:05 - 06:08:20 5057
Mohave Valley 06:05:43 -29.4 Dark Down 21.2 201.6 Low 06:03:05 - 06:08:20 5056
Yuma 06:05:34 -31.4 Dark Down 23.3 201.8 Low 06:02:56 - 06:08:11 5038
Henderson 06:05:49 -28.3 Dark Down 20.2 201.1 Low 06:03:11 - 06:08:26 5036
Indian Springs 06:05:52 -27.5 Dark Down 19.9 200.4 Really Low 06:03:15 - 06:08:30 4996
Calipatria 06:05:39 -30.7 Dark Down 23.1 201.0 Low 06:03:01 - 06:08:16 4984
Beatty 06:05:58 -26.9 Dark Down 19.9 199.4 Really Low 06:03:20 - 06:08:35 4931
Idyllwild 06:05:46 -29.7 Dark Down 22.9 199.9 Low 06:03:08 - 06:08:23 4915
Tonopah 06:06:04 -25.7 Dark Down 18.9 198.9 Really Low 06:03:27 - 06:08:42 4907
Bishop 06:06:05 -25.9 Dark Down 19.9 198.0 Really Low 06:03:28 - 06:08:43 4831
Hawthorne 06:06:10 -24.8 Dark Down 18.8 197.7 Really Low 06:03:32 - 06:08:47 4821
Wildwood 06:05:55 -28.7 Dark Down 23.1 198.2 Low 06:03:17 - 06:08:32 4794
PNWRO 06:06:34 -18.0 Dark Down 11.7 196.9 Really Low 06:03:56 - 06:09:11 4791
Yerington 06:06:14 -24.2 Dark Down 18.5 197.2 Really Low 06:03:37 - 06:08:52 4789
Lee Vining 06:06:10 -25.1 Dark Down 19.5 197.3 Really Low 06:03:33 - 06:08:48 4789
Gardnerville 06:06:15 -24.0 Dark Down 18.7 196.7 Really Low 06:03:38 - 06:08:53 4753
Carson City 06:06:16 -23.8 Dark Down 18.5 196.6 Really Low 06:03:39 - 06:08:54 4750
Reno 06:06:18 -23.5 Dark Down 18.1 196.5 Really Low 06:03:41 - 06:08:56 4750
Anarchist Mountain Observatory 06:06:42 -15.2 AT Down 8.9 196.4 Really Low 06:04:04 - 06:09:19 4740
Tonasket 06:06:42 -15.5 AT Down 9.2 196.3 Really Low 06:04:04 - 06:09:19 4738
Okanogan 06:06:41 -15.7 AT Down 9.6 196.2 Really Low 06:04:04 - 06:09:19 4734
Cedarville 06:06:25 -21.6 Dark Down 16.3 196.1 Really Low 06:03:47 - 06:09:02 4732
Oliver 06:06:43 -15.0 AT Down 8.8 196.2 Really Low 06:04:06 - 06:09:21 4727
Brewster 06:06:42 -15.9 AT Down 9.9 196.1 Really Low 06:04:04 - 06:09:19 4725
Kelowna 06:06:45 -14.4 AT Down 8.1 196.3 Really Low 06:04:08 - 06:09:23 4724
Penticton 06:06:44 -14.7 AT Down 8.5 196.2 Really Low 06:04:07 - 06:09:22 4723
Lakeview 06:06:27 -21.0 Dark Down 15.7 195.9 Really Low 06:03:49 - 06:09:04 4721
Summerland 06:06:43 -14.6 AT Down 8.4 196.1 Really Low 06:04:06 - 06:09:21 4717
Portola 06:06:21 -23.0 Dark Down 18.0 196.0 Really Low 06:03:43 - 06:08:58 4711
Peachland 06:06:45 -14.4 AT Down 8.3 196.0 Really Low 06:04:08 - 06:09:23 4710
Manson/Chelan 06:06:42 -16.0 AT Down 10.2 195.8 Really Low 06:04:04 - 06:09:19 4707
Toppenish/White Swan 06:06:39 -17.3 AT Down 11.7 195.6 Really Low 06:04:02 - 06:09:17 4705
Wenatchee 06:06:42 -16.4 AT Down 10.6 195.6 Really Low 06:04:04 - 06:09:19 4702
Susanville 06:06:24 -22.4 Dark Down 17.5 195.8 Really Low 06:03:47 - 06:09:02 4701
Yakima 06:06:40 -17.0 AT Down 11.5 195.5 Really Low 06:04:02 - 06:09:17 4694
Ellensburg 06:06:41 -16.7 AT Down 11.1 195.5 Really Low 06:04:03 - 06:09:18 4692
North Lake 06:06:32 -19.8 Dark Down 14.8 195.3 Really Low 06:03:54 - 06:09:09 4687
Gimple 06:06:23 -22.6 Dark Down 17.8 195.6 Really Low 06:03:46 - 06:09:01 4687
Goldendale 06:06:39 -17.6 AT Down 12.3 195.3 Really Low 06:04:01 - 06:09:16 4684
Greenville 06:06:23 -22.5 Dark Down 17.8 195.5 Really Low 06:03:46 - 06:09:01 4681
Quincy 06:06:22 -22.7 Dark Down 18.0 195.5 Really Low 06:03:45 - 06:09:00 4681
Maupin 06:06:38 -18.1 Dark Down 12.9 195.1 Really Low 06:04:01 - 06:09:16 4671
Kamloops 06:06:49 -13.4 AT Down 7.5 195.5 Really Low 06:04:11 - 06:09:26 4669
The Dalles 06:06:39 -17.7 AT Down 12.6 195.0 Really Low 06:04:01 - 06:09:16 4664
Bend 06:06:36 -19.0 Dark Down 14.1 195.0 Really Low 06:03:59 - 06:09:14 4661
Fall River/Burney 06:06:29 -21.6 Dark Down 17.0 195.1 Really Low 06:03:51 - 06:09:06 4656
Oregon Observatory 06:06:36 -19.1 Dark Down 14.3 194.8 Really Low 06:03:58 - 06:09:13 4654
Sisters 06:06:38 -18.7 Dark Down 13.9 194.7 Really Low 06:04:01 - 06:09:16 4646
Klamath Falls 06:06:33 -20.4 Dark Down 15.9 194.7 Really Low 06:03:55 - 06:09:10 4634
Chiloquin 06:06:34 -20.1 Dark Down 15.6 194.6 Really Low 06:03:57 - 06:09:12 4630
Victoria 06:06:54 -14.4 AT Down 10.1 193.0 Really Low 06:04:16 - 06:09:31 4524

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 459865, (2022/05/30 06:02UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 19.14 138
Iot Cen        13:20:35.2 -36:42:46  2.8  6.48 140
PPM 291197     13:16:53.2 -31:30:23  5.1  2.10 139
PPM 291435     13:28:58.3 -31:02:39  8.0  1.15 142
PPM 291340     13:24:29.1 -30:26:03 10.0  0.16 141
459865         13:24:55.2 -30:17:57 15.6       141
Positions are for J2000

Event circumstances last updated at 2022/05/14 23:45:42 UT

Marc W. Buie, Southwest Research Institute

RECON