RECON: TNO occultation with 523700

Event between (523700) 14GM54 and star GA1060:13484350 with event index number of 1233168

Geocentric closest approach at 2022/10/31 04:15:33 UTC

J2000 position of star is 19:47:49.3 +17:27:56
Equinox of date position of star is 19:48:41.8 +17:30:53
Stellar brightness G=14.3, use SENSEUP=64
Star is 44 degrees from the moon. Moon is 38% illuminated.
TNO apparent brightness V=21.8

[RECON map]
TNO is 27.9 AU from the Sun and 27.9 AU from the Earth.
The TNO is moving 23.6 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 102 seconds.
The 1-sigma cross-track error in the shadow position is 2774 km.
The sky-plane scale is 20227.7 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=229.1 km assuming a 5% albedo -- 9.7 sec chord
Diameter=93.5 km assuming a 30% albedo -- 4.0 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 

Star training set for 523700, (2022/10/31 04:16UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:42.7 +38:48:21  0.0 26.33  67
Tarazed        19:47:20.7 +10:40:13  2.7  6.86  37
7Del Sge       19:48:24.4 +18:35:31  3.8  1.07  45
PPM 136996     19:48:59.4 +17:19:42  8.4  0.20  44
523700         19:48:51.0 +17:31:24 14.3        44
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 3.7 km RECON observability=1.0 and success probability=8.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Niwot 04:15:12 -48.3 Dark Up 33.1 265.4 Up 04:06:14 - 04:24:11 1565
SwRI 04:15:12 -48.3 Dark Up 33.1 265.4 Up 04:06:14 - 04:24:11 1561
DCO 04:15:34 -44.4 Dark Up 39.8 263.8 Up 04:06:35 - 04:24:32 1140
Patrick 04:15:32 -43.7 Dark Up 40.3 263.1 Up 04:06:33 - 04:24:30 1101
Kingman/Dolan Springs 04:15:33 -43.6 Dark Up 40.5 263.2 Up 04:06:34 - 04:24:31 1088
Lake Havasu City 04:15:36 -43.6 Dark Up 40.8 263.6 Up 04:06:38 - 04:24:35 1067
Parker 04:15:38 -43.7 Dark Up 40.8 263.9 Up 04:06:39 - 04:24:36 1065
Laughlin/Bullhead City 04:15:33 -43.2 Dark Up 40.9 262.8 Up 04:06:34 - 04:24:31 1057
Mohave Valley 04:15:34 -43.3 Dark Up 40.9 263.1 Up 04:06:36 - 04:24:33 1055
Blythe 04:15:40 -43.6 Dark Up 41.1 264.2 Up 04:06:42 - 04:24:39 1042
Henderson 04:15:29 -42.7 Dark Up 41.1 261.8 Up 04:06:30 - 04:24:27 1039
Searchlight/Boulder City 04:15:30 -42.9 Dark Up 41.2 262.3 Up 04:06:32 - 04:24:29 1039
Yuma 04:15:44 -43.8 Dark Up 41.2 265.0 Up 04:06:46 - 04:24:43 1030
Indian Springs 04:15:26 -42.0 Dark Up 41.6 260.8 Up 04:06:28 - 04:24:25 1002
Calipatria 04:15:41 -43.0 Dark Up 41.9 264.0 Up 04:06:43 - 04:24:40 979
Beatty 04:15:23 -41.1 Dark Up 42.4 259.8 Up 04:06:25 - 04:24:22 939
Tonopah 04:15:18 -40.4 Dark Up 42.6 258.4 Up 04:06:20 - 04:24:17 919
Idyllwild 04:15:38 -41.9 Dark Up 42.8 262.7 Up 04:06:39 - 04:24:36 913
Lone Pine 04:15:24 -40.1 Dark Up 43.5 259.1 Up 04:06:25 - 04:24:22 858
Bishop 04:15:20 -39.7 Dark Up 43.6 258.1 Up 04:06:22 - 04:24:19 843
Hawthorne 04:15:15 -39.2 Dark Up 43.6 256.8 Up 04:06:16 - 04:24:13 837
PNWRO 04:14:40 -36.7 Dark Up 41.7 249.9 Up 04:05:42 - 04:23:39 833
Pasco 04:14:39 -36.5 Dark Up 41.8 249.4 Up 04:05:41 - 04:23:38 820
George/Umatilla 04:14:41 -36.5 Dark Up 42.0 249.5 Up 04:05:42 - 04:23:39 809
Yerington 04:15:12 -38.7 Dark Up 43.9 255.9 Up 04:06:14 - 04:24:11 808
Lee Vining 04:15:17 -39.0 Dark Up 44.1 257.0 Up 04:06:18 - 04:24:15 803
Wildwood 04:15:36 -40.3 Dark Up 44.3 261.1 Up 04:06:37 - 04:24:34 797
Anarchist Mountain Observatory 04:14:26 -35.3 Dark Up 40.9 246.9 Up 04:05:28 - 04:23:25 792
Tonasket 04:14:28 -35.4 Dark Up 41.1 247.1 Up 04:05:30 - 04:23:27 791
Oroville 04:14:27 -35.3 Dark Up 41.0 246.9 Up 04:05:29 - 04:23:26 789
Okanogan 04:14:29 -35.4 Dark Up 41.3 247.2 Up 04:05:31 - 04:23:28 785
Kelowna 04:14:23 -35.0 Dark Up 40.6 246.1 Up 04:05:24 - 04:23:21 785
Oliver 04:14:26 -35.2 Dark Up 41.0 246.6 Up 04:05:27 - 04:23:24 781
Okanagan Falls 04:14:25 -35.1 Dark Up 40.9 246.4 Up 04:05:26 - 04:23:23 779
Penticton 04:14:24 -35.0 Dark Up 40.9 246.3 Up 04:05:25 - 04:23:22 779
Brewster 04:14:30 -35.4 Dark Up 41.5 247.2 Up 04:05:32 - 04:23:29 776
Summerland 04:14:23 -34.9 Dark Up 40.9 246.1 Up 04:05:25 - 04:23:22 773
Gardnerville 04:15:13 -38.2 Dark Up 44.3 255.5 Up 04:06:14 - 04:24:11 772
Reno 04:15:09 -38.0 Dark Up 44.2 254.9 Up 04:06:11 - 04:24:08 772
Carson City 04:15:11 -38.1 Dark Up 44.3 255.2 Up 04:06:13 - 04:24:10 771
Cedarville 04:15:01 -37.2 Dark Up 44.0 252.7 Up 04:06:02 - 04:23:59 760
Manson/Chelan 04:14:31 -35.2 Dark Up 41.9 247.0 Up 04:05:33 - 04:23:30 758
Entiat 04:14:32 -35.3 Dark Up 42.0 247.2 Up 04:05:33 - 04:23:30 755
Lakeview 04:14:57 -36.9 Dark Up 43.9 251.9 Up 04:05:59 - 04:23:56 752
Wenatchee 04:14:33 -35.3 Dark Up 42.1 247.3 Up 04:05:34 - 04:23:31 751
Toppenish/White Swan 04:14:38 -35.6 Dark Up 42.6 248.1 Up 04:05:39 - 04:23:36 750
Paisley 04:14:55 -36.6 Dark Up 43.9 251.3 Up 04:05:56 - 04:23:53 742
Yakima 04:14:36 -35.4 Dark Up 42.6 247.8 Up 04:05:38 - 04:23:35 741
Ellensburg 04:14:35 -35.3 Dark Up 42.4 247.4 Up 04:05:37 - 04:23:34 740
Portola 04:15:08 -37.5 Dark Up 44.7 254.1 Up 04:06:09 - 04:24:06 734
Goldendale 04:14:40 -35.5 Dark Up 43.0 248.2 Up 04:05:41 - 04:23:38 728
Susanville 04:15:05 -37.2 Dark Up 44.6 253.3 Up 04:06:06 - 04:24:03 726
North Lake 04:14:52 -36.2 Dark Up 44.0 250.4 Up 04:05:53 - 04:23:50 722
Maupin 04:14:43 -35.5 Dark Up 43.4 248.5 Up 04:05:44 - 04:23:41 714
Gimple 04:15:06 -37.1 Dark Up 44.9 253.4 Up 04:06:07 - 04:24:04 712
Madras/Culver 04:14:45 -35.7 Dark Up 43.7 249.0 Up 04:05:47 - 04:23:44 711
Redmond 04:14:47 -35.7 Dark Up 43.8 249.2 Up 04:05:48 - 04:23:45 708
The Dalles 04:14:40 -35.3 Dark Up 43.4 248.0 Up 04:05:42 - 04:23:39 708
Greenville 04:15:06 -37.0 Dark Up 44.9 253.3 Up 04:06:07 - 04:24:04 706
Quincy 04:15:07 -37.1 Dark Up 45.0 253.5 Up 04:06:08 - 04:24:05 705
Bend 04:14:48 -35.7 Dark Up 44.0 249.3 Up 04:05:49 - 04:23:46 700
Oregon Observatory 04:14:48 -35.7 Dark Up 44.1 249.3 Up 04:05:50 - 04:23:47 692
La Pine/Gilchrist 04:14:50 -35.7 Dark Up 44.2 249.5 Up 04:05:51 - 04:23:48 688
Sisters 04:14:46 -35.5 Dark Up 44.1 248.8 Up 04:05:48 - 04:23:45 685
Fall River/Burney 04:15:02 -36.5 Dark Up 45.0 252.1 Up 04:06:03 - 04:24:00 685
Tulelake 04:14:57 -36.2 Dark Up 44.8 251.1 Up 04:05:59 - 04:23:56 684
CPSLO 04:15:29 -38.3 Dark Up 45.8 258.4 Up 04:06:30 - 04:24:27 680
Klamath Falls 04:14:56 -35.9 Dark Up 44.9 250.6 Up 04:05:58 - 04:23:55 667
Chiloquin 04:14:54 -35.7 Dark Up 44.9 250.2 Up 04:05:56 - 04:23:53 664

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 523700, (2022/10/31 04:16UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 26.33  67
Tarazed        19:46:15.6 +10:36:48  2.7  6.86  37
7Del Sge       19:47:23.3 +18:32:03  3.8  1.07  45
PPM 136996     19:47:57.7 +17:16:13  8.4  0.20  44
523700         19:47:49.3 +17:27:56 14.3        44
Positions are for J2000

Event circumstances last updated at 2019/06/08 04:19:05 UT

Marc W. Buie, Southwest Research Institute

RECON