RECON: TNO occultation with 523700

Event between (523700) 14GM54 and star GA1080:14661000 with event index number of 2088548

Geocentric closest approach at 2022/06/16 10:35:52 UTC

J2000 position of star is 19:56:56.3 +19:48:19
Equinox of date position of star is 19:57:55.2 +19:51:58
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 46 degrees from the moon. Moon is 94% illuminated.
TNO apparent brightness V=21.7

[RECON map]
TNO is 27.7 AU from the Sun and 27.1 AU from the Earth.
The TNO is moving 19.1 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 114 seconds.
The 1-sigma cross-track error in the shadow position is 1475 km.
The sky-plane scale is 19669.0 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=229.1 km assuming a 5% albedo -- 12.0 sec chord
Diameter=93.5 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 

Star training set for 523700, (2022/06/16 10:36UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:42.0 +38:48:20  0.0 25.66  67
Tarazed        19:47:19.6 +10:40:10  2.7  9.55  37
12Gam Sge      19:59:45.4 +19:33:16  3.5  0.53  46
PPM 137273     19:58:06.1 +19:37:31  8.3  0.24  46
PPM 137286     19:58:20.3 +19:51:32  9.3  0.10  46
523700         19:57:55.9 +19:52:00 16.5        46
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 24.9 km RECON observability=0.5 and success probability=10.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:35:22 -1.6 CT Up 54.7 210.9 Up 10:25:21 - 10:45:23 3731
Kamloops 10:36:09 -8.6 NT Up 59.0 187.5 Up 10:26:08 - 10:46:10 3360
Kelowna 10:36:05 -8.9 NT Up 59.7 189.4 Up 10:26:04 - 10:46:06 3297
Peachland 10:36:06 -9.1 NT Up 59.8 188.8 Up 10:26:05 - 10:46:07 3282
Summerland 10:36:06 -9.2 NT Up 60.0 189.1 Up 10:26:05 - 10:46:07 3270
Penticton 10:36:05 -9.2 NT Up 60.0 189.3 Up 10:26:04 - 10:46:06 3265
Oliver 10:36:04 -9.5 NT Up 60.4 189.4 Up 10:26:03 - 10:46:05 3232
Anarchist Mountain Observatory 10:36:04 -9.5 NT Up 60.5 189.8 Up 10:26:03 - 10:46:05 3220
Tonasket 10:36:03 -9.8 NT Up 60.8 189.7 Up 10:26:02 - 10:46:04 3189
Okanogan 10:36:04 -10.1 NT Up 61.2 189.5 Up 10:26:03 - 10:46:05 3155
Brewster 10:36:04 -10.4 NT Up 61.5 189.2 Up 10:26:03 - 10:46:05 3126
Victoria 10:36:18 -11.4 NT Up 61.3 182.2 Up 10:26:17 - 10:46:19 3113
Manson/Chelan 10:36:05 -10.7 NT Up 61.7 188.6 Up 10:26:04 - 10:46:06 3100
Wenatchee 10:36:05 -11.2 NT Up 62.2 188.4 Up 10:26:04 - 10:46:06 3052
Ellensburg 10:36:05 -11.6 NT Up 62.6 188.0 Up 10:26:04 - 10:46:06 3009
Yakima 10:36:05 -12.0 NT Up 63.0 188.1 Up 10:26:04 - 10:46:06 2970
Toppenish/White Swan 10:36:04 -12.1 AT Up 63.2 188.5 Up 10:26:03 - 10:46:05 2951
PNWRO 10:35:58 -11.8 NT Up 63.4 191.7 Up 10:25:57 - 10:45:59 2940
Goldendale 10:36:05 -12.7 AT Up 63.8 187.8 Up 10:26:04 - 10:46:06 2891
The Dalles 10:36:06 -13.0 AT Up 64.1 187.1 Up 10:26:05 - 10:46:07 2863
Maupin 10:36:05 -13.3 AT Up 64.5 187.4 Up 10:26:04 - 10:46:06 2824
Sisters 10:36:06 -14.2 AT Up 65.4 186.6 Up 10:26:05 - 10:46:07 2730
Bend 10:36:05 -14.3 AT Up 65.6 187.2 Up 10:26:04 - 10:46:06 2711
Oregon Observatory 10:36:05 -14.5 AT Up 65.8 186.9 Up 10:26:04 - 10:46:06 2691
Dunrhomin 10:34:53 -9.3 NT Up 63.9 224.1 Up 10:24:52 - 10:44:54 2661
North Lake 10:36:02 -14.8 AT Up 66.4 188.4 Up 10:26:01 - 10:46:03 2637
CU-SBO 10:34:53 -9.5 NT Up 64.1 224.3 Up 10:24:52 - 10:44:54 2635
Chiloquin 10:36:05 -15.8 AT Up 67.1 186.3 Up 10:26:04 - 10:46:06 2553
Lakeview 10:35:59 -15.5 AT Up 67.4 190.0 Up 10:25:58 - 10:46:00 2540
Klamath Falls 10:36:05 -16.0 AT Up 67.5 186.6 Up 10:26:04 - 10:46:06 2520
Cedarville 10:35:57 -15.9 AT Up 68.0 190.7 Up 10:25:56 - 10:45:58 2478
Fall River/Burney 10:36:02 -16.8 AT Up 68.6 187.9 Up 10:26:01 - 10:46:03 2408
Susanville 10:35:58 -17.0 AT Up 69.1 190.0 Up 10:25:57 - 10:45:59 2357
Gimple 10:35:58 -17.3 AT Up 69.4 189.6 Up 10:25:57 - 10:45:59 2325
Greenville 10:35:59 -17.4 AT Up 69.4 189.4 Up 10:25:58 - 10:46:00 2324
Quincy 10:35:58 -17.5 AT Up 69.6 189.5 Up 10:25:57 - 10:45:59 2303
Portola 10:35:56 -17.4 AT Up 69.7 190.8 Up 10:25:55 - 10:45:57 2299
Reno 10:35:53 -17.3 AT Up 69.9 192.7 Up 10:25:52 - 10:45:54 2283
Carson City 10:35:53 -17.6 AT Up 70.2 192.9 Up 10:25:52 - 10:45:54 2247
Yerington 10:35:50 -17.5 AT Up 70.3 194.8 Up 10:25:49 - 10:45:51 2239
Gardnerville 10:35:52 -17.8 AT Up 70.4 193.2 Up 10:25:51 - 10:45:53 2223
Hawthorne 10:35:47 -17.6 AT Up 70.6 196.5 Up 10:25:46 - 10:45:48 2201
Tonopah 10:35:40 -17.3 AT Up 70.7 200.8 Up 10:25:39 - 10:45:41 2181
Lee Vining 10:35:48 -18.3 Dark Up 71.3 195.6 Up 10:25:47 - 10:45:49 2134
Bishop 10:35:44 -18.4 Dark Up 71.7 198.2 Up 10:25:43 - 10:45:45 2087
Beatty 10:35:36 -17.9 AT Up 71.7 203.3 Up 10:25:35 - 10:45:37 2071
Indian Springs 10:35:31 -17.6 AT Up 71.6 206.6 Up 10:25:30 - 10:45:32 2059
Henderson 10:35:27 -17.7 AT Up 71.8 209.3 Up 10:25:26 - 10:45:28 2019
Patrick 10:35:21 -17.5 AT Up 71.9 213.2 Up 10:25:20 - 10:45:22 1978
Kingman/Dolan Springs 10:35:21 -17.8 AT Up 72.2 213.1 Up 10:25:20 - 10:45:22 1951
Laughlin/Bullhead City 10:35:24 -18.1 Dark Up 72.4 211.7 Up 10:25:23 - 10:45:25 1938
Mohave Valley 10:35:24 -18.3 Dark Up 72.6 212.2 Up 10:25:23 - 10:45:25 1910
Lake Havasu City 10:35:22 -18.5 Dark Up 72.9 213.6 Up 10:25:21 - 10:45:23 1874
George/Scottsdale 10:35:09 -17.6 AT Up 72.3 221.5 Up 10:25:08 - 10:45:10 1849
Parker 10:35:21 -18.7 Dark Up 73.1 214.3 Up 10:25:20 - 10:45:22 1838
Idyllwild 10:35:32 -20.3 Dark Up 74.5 207.8 Up 10:25:31 - 10:45:33 1744
Wildwood 10:35:41 -21.0 Dark Up 74.8 201.2 Up 10:25:40 - 10:45:42 1743
Calipatria 10:35:25 -20.1 Dark Up 74.6 212.6 Up 10:25:24 - 10:45:26 1706
Yuma 10:35:20 -20.0 Dark Up 74.5 216.2 Up 10:25:19 - 10:45:21 1680

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, (2022/06/16 10:36UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 25.66  67
Tarazed        19:46:15.6 +10:36:48  2.7  9.55  37
12Gam Sge      19:58:45.5 +19:29:32  3.5  0.53  46
PPM 137273     19:57:06.3 +19:33:51  8.3  0.24  46
PPM 137286     19:57:20.6 +19:47:51  9.3  0.10  46
523700         19:56:56.3 +19:48:19 16.5        46
Positions are for J2000

Event circumstances last updated at 2022/03/15 01:05:05 UT

Marc W. Buie, Southwest Research Institute

RECON