RECON: TNO occultation with 530838

Event between (530838) 11UC411 and star GA1120:00446859 with event index number of 2443358

Geocentric closest approach at 2022/11/14 11:43:59 UTC

J2000 position of star is 03:38:43.2 +23:21:04
Equinox of date position of star is 03:40:03.9 +23:25:27
Stellar brightness G=14.1, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 61 degrees from the moon. Moon is 69% illuminated.
TNO apparent brightness V=22.7

[RECON map]
TNO is 30.1 AU from the Sun and 29.1 AU from the Earth.
The TNO is moving 24.0 km/sec on the sky relative to the star, or, 4.1 arcsec/hr.
The 1-sigma error in the time of the event is 145 seconds.
The 1-sigma cross-track error in the shadow position is 1729 km.
The sky-plane scale is 21125.7 km/arcsec.

The TNO has an absolute magnitude Hv=8.0
Diameter=151.4 km assuming a 5% albedo -- 6.2 sec chord
Diameter=61.8 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 530838, (2022/11/14 11:44UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:14.1 +16:33:12  0.8 15.07  51
44Zet Per      03:55:34.5 +31:56:59  2.8  9.19  56
17 Tau         03:46:14.3 +24:11:01  3.7  1.60  60
PPM 092667     03:38:19.0 +23:17:07  6.7  0.43  62
PPM 092711     03:41:02.3 +23:21:48 10.0  0.23  61
PPM 092705     03:40:50.3 +23:30:12 10.9  0.19  61
530838         03:40:04.4 +23:25:28 14.1        61
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 29.0 km RECON observability=1.0 and success probability=0.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 11:40:51 -24.6 Dark Up 31.5 268.3 Up 11:28:14 - 11:53:28 7963
Kamloops 11:41:12 -33.6 Dark Up 40.6 257.2 Up 11:28:35 - 11:53:49 7606
Kelowna 11:41:08 -33.3 Dark Up 40.2 258.7 Up 11:28:31 - 11:53:45 7537
Peachland 11:41:08 -33.5 Dark Up 40.4 258.5 Up 11:28:31 - 11:53:45 7522
Summerland 11:41:08 -33.4 Dark Up 40.3 258.7 Up 11:28:31 - 11:53:45 7508
Penticton 11:41:08 -33.4 Dark Up 40.3 258.9 Up 11:28:31 - 11:53:45 7503
Oliver 11:41:07 -33.5 Dark Up 40.4 259.2 Up 11:28:30 - 11:53:44 7468
Anarchist Mountain Observatory 11:41:06 -33.4 Dark Up 40.3 259.5 Up 11:28:29 - 11:53:43 7453
Tonasket 11:41:06 -33.5 Dark Up 40.4 259.7 Up 11:28:29 - 11:53:43 7421
Okanogan 11:41:06 -33.6 Dark Up 40.5 259.8 Up 11:28:29 - 11:53:43 7386
Brewster 11:41:05 -33.8 Dark Up 40.7 259.9 Up 11:28:28 - 11:53:42 7356
Victoria 11:41:14 -36.1 Dark Up 43.0 256.4 Up 11:28:37 - 11:53:51 7355
Manson/Chelan 11:41:06 -34.1 Dark Up 41.0 259.7 Up 11:28:29 - 11:53:43 7330
Wenatchee 11:41:05 -34.3 Dark Up 41.2 260.0 Up 11:28:28 - 11:53:42 7280
Ellensburg 11:41:05 -34.5 Dark Up 41.4 260.2 Up 11:28:28 - 11:53:42 7235
Yakima 11:41:04 -34.6 Dark Up 41.5 260.5 Up 11:28:27 - 11:53:41 7193
Toppenish/White Swan 11:41:04 -34.5 Dark Up 41.4 260.8 Up 11:28:27 - 11:53:41 7173
PNWRO 11:41:00 -33.6 Dark Up 40.4 262.4 Up 11:28:23 - 11:53:37 7156
Goldendale 11:41:04 -34.9 Dark Up 41.8 261.0 Up 11:28:27 - 11:53:41 7111
The Dalles 11:41:04 -35.2 Dark Up 42.1 260.9 Up 11:28:27 - 11:53:41 7083
Maupin 11:41:03 -35.2 Dark Up 42.1 261.3 Up 11:28:26 - 11:53:40 7042
Sisters 11:41:03 -35.7 Dark Up 42.6 261.7 Up 11:28:26 - 11:53:40 6944
Bend 11:41:02 -35.5 Dark Up 42.4 262.1 Up 11:28:25 - 11:53:39 6923
Oregon Observatory 11:41:02 -35.7 Dark Up 42.5 262.2 Up 11:28:25 - 11:53:39 6903
North Lake 11:40:59 -35.4 Dark Up 42.2 263.2 Up 11:28:22 - 11:53:36 6844
Dunrhomin 11:40:24 -23.9 Dark Up 30.6 275.9 Up 11:27:47 - 11:53:01 6825
CU-SBO 11:40:24 -23.9 Dark Up 30.7 276.0 Up 11:27:47 - 11:53:01 6797
Chiloquin 11:41:01 -36.2 Dark Up 43.0 263.1 Up 11:28:24 - 11:53:38 6760
Lakeview 11:40:57 -35.1 Dark Up 41.9 264.5 Up 11:28:20 - 11:53:34 6741
Klamath Falls 11:41:00 -36.2 Dark Up 43.0 263.5 Up 11:28:23 - 11:53:37 6725
Cedarville 11:40:55 -35.1 Dark Up 41.9 265.3 Up 11:28:18 - 11:53:32 6674
Fall River/Burney 11:40:58 -36.0 Dark Up 42.8 264.8 Up 11:28:21 - 11:53:35 6606
Susanville 11:40:55 -35.5 Dark Up 42.3 265.9 Up 11:28:18 - 11:53:32 6550
Gimple 11:40:55 -35.7 Dark Up 42.5 266.0 Up 11:28:18 - 11:53:32 6518
Greenville 11:40:55 -35.8 Dark Up 42.6 266.0 Up 11:28:18 - 11:53:32 6517
Quincy 11:40:55 -35.8 Dark Up 42.6 266.1 Up 11:28:18 - 11:53:32 6495
Portola 11:40:54 -35.5 Dark Up 42.2 266.6 Up 11:28:17 - 11:53:31 6489
Reno 11:40:52 -35.0 Dark Up 41.7 267.3 Up 11:28:15 - 11:53:29 6470
Carson City 11:40:51 -35.0 Dark Up 41.7 267.6 Up 11:28:14 - 11:53:28 6433
Yerington 11:40:50 -34.5 Dark Up 41.3 268.2 Up 11:28:13 - 11:53:27 6422
Gardnerville 11:40:51 -35.0 Dark Up 41.7 267.8 Up 11:28:14 - 11:53:28 6407
Hawthorne 11:40:48 -34.2 Dark Up 40.9 268.9 Up 11:28:11 - 11:53:25 6381
Tonopah 11:40:43 -33.1 Dark Up 39.8 270.2 Up 11:28:06 - 11:53:20 6354
Lee Vining 11:40:48 -34.6 Dark Up 41.3 269.1 Up 11:28:11 - 11:53:25 6313
Bishop 11:40:45 -34.0 Dark Up 40.7 270.1 Up 11:28:08 - 11:53:22 6261
Beatty 11:40:41 -32.8 Dark Up 39.4 271.4 Up 11:28:04 - 11:53:18 6239
Indian Springs 11:40:39 -31.9 Dark Up 38.5 272.3 Up 11:28:02 - 11:53:16 6223
Henderson 11:40:36 -31.4 Dark Up 38.0 273.1 Up 11:27:59 - 11:53:13 6179
Patrick 11:40:33 -30.4 Dark Up 37.0 274.2 Up 11:27:56 - 11:53:10 6134
Kingman/Dolan Springs 11:40:33 -30.6 Dark Up 37.2 274.3 Up 11:27:56 - 11:53:10 6107
Laughlin/Bullhead City 11:40:34 -31.0 Dark Up 37.6 274.0 Up 11:27:57 - 11:53:11 6094
Mohave Valley 11:40:34 -31.0 Dark Up 37.6 274.2 Up 11:27:57 - 11:53:11 6065
Lake Havasu City 11:40:33 -30.8 Dark Up 37.3 274.6 Up 11:27:56 - 11:53:10 6027
George/Scottsdale 11:40:27 -28.7 Dark Up 35.2 276.4 Up 11:27:50 - 11:53:04 5995
Parker 11:40:32 -30.8 Dark Up 37.3 274.9 Up 11:27:55 - 11:53:09 5990
Wildwood 11:40:42 -34.3 Dark Up 40.8 272.8 Up 11:28:05 - 11:53:19 5907
Idyllwild 11:40:37 -32.7 Dark Up 39.2 274.0 Up 11:28:00 - 11:53:14 5901
Calipatria 11:40:34 -31.7 Dark Up 38.2 275.1 Up 11:27:57 - 11:53:11 5858
Yuma 11:40:31 -31.0 Dark Up 37.4 275.9 Up 11:27:54 - 11:53:08 5828

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 530838, (2022/11/14 11:44UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 15.07  51
44Zet Per      03:54:07.9 +31:53:01  2.8  9.19  56
17 Tau         03:44:52.6 +24:06:47  3.7  1.60  60
PPM 092667     03:36:58.0 +23:12:40  6.7  0.43  62
PPM 092711     03:39:41.1 +23:17:26 10.0  0.23  61
PPM 092705     03:39:29.1 +23:25:50 10.9  0.19  61
530838         03:38:43.2 +23:21:04 14.1        61
Positions are for J2000

Event circumstances last updated at 2022/10/03 04:12:38 UT

Marc W. Buie, Southwest Research Institute

RECON