RECON: TNO occultation with 535167

Event between (535167) 14XT40 and star GA1080:00592500 with event index number of 1617425

Geocentric closest approach at 2023/11/10 04:42:34 UTC

J2000 position of star is 04:32:31.0 +18:41:53
Equinox of date position of star is 04:33:39.2 +18:44:18
Stellar brightness G=10.8, use SENSEUP=4
Star is 121 degrees from the moon. Moon is 10% illuminated.
TNO apparent brightness V=22.5

[RECON map]
TNO is 32.6 AU from the Sun and 31.7 AU from the Earth.
The TNO is moving 22.5 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 414 seconds.
The 1-sigma cross-track error in the shadow position is 1686 km.
The sky-plane scale is 23001.9 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 9.3 sec chord
Diameter=85.3 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 535167, (2023/11/10 04:43UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:17.5 +16:33:20  0.8  2.34 121
3Iot Aur       04:58:33.1 +33:12:06  2.7 15.47 113
PPM 120015     04:34:56.0 +18:03:55  6.3  0.72 121
PPM 120041     04:36:16.0 +18:27:40  8.3  0.63 121
PPM 120027     04:35:34.6 +18:46:06 11.0  0.40 121
535167         04:33:54.4 +18:44:50 10.8       121
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 2.2 sigma about the mid-time.
The median site spacing is 16.1 km RECON observability=1.0 and success probability=21.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 04:44:44 -41.8 Dark Down 28.8 94.8 Low 04:29:44 - 04:59:44 1646
Summerland 04:44:45 -41.7 Dark Down 28.6 94.4 Low 04:29:45 - 04:59:45 1635
Penticton 04:44:46 -41.8 Dark Down 28.7 94.5 Low 04:29:46 - 04:59:46 1628
Okanagan Falls 04:44:47 -41.9 Dark Down 28.7 94.4 Low 04:29:47 - 04:59:47 1617
Oliver 04:44:47 -42.0 Dark Down 28.7 94.3 Low 04:29:47 - 04:59:47 1606
Anarchist Mountain Observatory 04:44:48 -42.2 Dark Down 28.9 94.4 Low 04:29:48 - 04:59:48 1590
Oroville 04:44:48 -42.2 Dark Down 28.8 94.3 Low 04:29:48 - 04:59:48 1588
Tonasket 04:44:49 -42.3 Dark Down 28.8 94.2 Low 04:29:49 - 04:59:49 1573
Okanogan 04:44:50 -42.3 Dark Down 28.8 93.9 Low 04:29:50 - 04:59:50 1556
Brewster 04:44:52 -42.3 Dark Down 28.7 93.6 Low 04:29:52 - 04:59:52 1544
Manson/Chelan 04:44:53 -42.2 Dark Down 28.4 93.2 Low 04:29:53 - 04:59:53 1541
Wenatchee 04:44:55 -42.3 Dark Down 28.3 92.8 Low 04:29:55 - 04:59:55 1515
Ellensburg 04:44:57 -42.3 Dark Down 28.2 92.4 Low 04:29:57 - 04:59:57 1494
Yakima 04:44:59 -42.5 Dark Down 28.2 92.2 Low 04:29:59 - 04:59:59 1469
Toppenish/White Swan 04:44:59 -42.7 Dark Down 28.4 92.2 Low 04:29:59 - 04:59:59 1450
Goldendale 04:45:02 -42.6 Dark Down 28.1 91.6 Low 04:30:02 - 05:00:02 1425
The Dalles 04:45:03 -42.5 Dark Down 27.8 91.2 Low 04:30:03 - 05:00:03 1421
Pasco 04:44:59 -43.5 Dark Down 29.2 93.1 Low 04:29:59 - 04:59:59 1406
Maupin 04:45:04 -42.7 Dark Down 27.9 91.1 Low 04:30:04 - 05:00:04 1390
George/Umatilla 04:45:00 -43.5 Dark Down 29.1 92.7 Low 04:30:00 - 05:00:00 1390
PNWRO 04:44:59 -43.8 Dark Down 29.4 93.1 Low 04:29:59 - 04:59:59 1383
Madras/Culver 04:45:07 -42.9 Dark Down 27.9 90.8 Low 04:30:07 - 05:00:07 1354
Sisters 04:45:09 -42.7 Dark Down 27.6 90.3 Low 04:30:09 - 05:00:09 1344
Redmond 04:45:08 -43.0 Dark Down 27.9 90.5 Low 04:30:08 - 05:00:08 1331
Bend 04:45:09 -42.9 Dark Down 27.8 90.3 Low 04:30:09 - 05:00:09 1320
Oregon Observatory 04:45:10 -42.9 Dark Down 27.7 90.1 Low 04:30:10 - 05:00:10 1312
La Pine/Gilchrist 04:45:11 -43.0 Dark Down 27.7 90.0 Low 04:30:11 - 05:00:11 1300
North Lake 04:45:12 -43.5 Dark Down 28.1 90.2 Low 04:30:12 - 05:00:12 1252
Chiloquin 04:45:16 -43.1 Dark Down 27.4 89.2 Low 04:30:16 - 05:00:16 1233
Klamath Falls 04:45:17 -43.2 Dark Down 27.5 89.1 Low 04:30:17 - 05:00:17 1206
Paisley 04:45:14 -44.0 Dark Down 28.4 90.1 Low 04:30:14 - 05:00:14 1202
Tulelake 04:45:17 -43.5 Dark Down 27.7 89.1 Low 04:30:17 - 05:00:17 1178
Lakeview 04:45:15 -44.3 Dark Down 28.5 90.0 Low 04:30:15 - 05:00:15 1161
Fall River/Burney 04:45:21 -43.9 Dark Down 27.7 88.7 Low 04:30:21 - 05:00:21 1110
Cedarville 04:45:17 -44.6 Dark Down 28.7 89.8 Low 04:30:17 - 05:00:17 1108
Susanville 04:45:23 -44.6 Dark Down 28.3 88.9 Low 04:30:23 - 05:00:23 1041
Greenville 04:45:24 -44.5 Dark Down 28.1 88.5 Low 04:30:24 - 05:00:24 1030
Gimple 04:45:24 -44.6 Dark Down 28.1 88.6 Low 04:30:24 - 05:00:24 1027
Quincy 04:45:24 -44.6 Dark Down 28.1 88.4 Low 04:30:24 - 05:00:24 1015
Portola 04:45:24 -44.9 Dark Down 28.4 88.7 Low 04:30:24 - 05:00:24 991
Reno 04:45:25 -45.5 Dark Down 28.9 88.9 Low 04:30:25 - 05:00:25 951
Carson City 04:45:26 -45.6 Dark Down 28.9 88.7 Low 04:30:26 - 05:00:26 923
Gardnerville 04:45:27 -45.7 Dark Down 29.0 88.6 Low 04:30:27 - 05:00:27 903
Yerington 04:45:26 -46.2 Dark Down 29.4 89.0 Low 04:30:26 - 05:00:26 888
Hawthorne 04:45:27 -46.7 Dark Down 29.8 89.1 Low 04:30:27 - 05:00:27 836
Lee Vining 04:45:29 -46.5 Dark Down 29.4 88.5 Low 04:30:29 - 05:00:29 808
Tonopah 04:45:27 -47.9 Dark Down 30.9 89.7 Up 04:30:27 - 05:00:27 754
Bishop 04:45:31 -47.2 Dark Down 30.0 88.6 Up 04:30:31 - 05:00:31 738
Lone Pine 04:45:33 -47.7 Dark Down 30.3 88.3 Up 04:30:33 - 05:00:33 667
CPSLO 04:45:41 -46.0 Dark Down 28.1 86.2 Low 04:30:41 - 05:00:41 649
Beatty 04:45:30 -48.6 Dark Down 31.3 89.3 Up 04:30:30 - 05:00:30 648
Indian Springs 04:45:30 -49.5 Dark Down 32.2 89.7 Up 04:30:30 - 05:00:30 586
SwRI 04:45:00 -55.4 Dark Down 40.0 99.0 Up 04:30:00 - 05:00:00 526
Henderson 04:45:30 -50.2 Dark Down 32.7 89.8 Up 04:30:30 - 05:00:30 520
Wildwood 04:45:42 -47.9 Dark Down 29.7 86.6 Low 04:30:42 - 05:00:42 482
Searchlight/Boulder City 04:45:32 -50.4 Dark Down 32.8 89.5 Up 04:30:32 - 05:00:32 471
Laughlin/Bullhead City 04:45:33 -50.8 Dark Down 33.1 89.5 Up 04:30:33 - 05:00:33 434
Patrick 04:45:31 -51.3 Dark Down 33.6 90.0 Up 04:30:31 - 05:00:31 431
Kingman/Dolan Springs 04:45:32 -51.2 Dark Down 33.5 89.8 Up 04:30:32 - 05:00:32 419
Mohave Valley 04:45:33 -50.9 Dark Down 33.1 89.3 Up 04:30:33 - 05:00:33 412
Idyllwild 04:45:41 -49.5 Dark Down 31.3 87.4 Up 04:30:41 - 05:00:41 388
Lake Havasu City 04:45:34 -51.2 Dark Down 33.3 89.2 Up 04:30:34 - 05:00:34 370
Parker 04:45:35 -51.3 Dark Down 33.3 89.0 Up 04:30:35 - 05:00:35 340
Blythe 04:45:38 -51.2 Dark Down 33.0 88.5 Up 04:30:38 - 05:00:38 306
Calipatria 04:45:41 -50.6 Dark Down 32.2 87.7 Up 04:30:41 - 05:00:41 297
Yuma 04:45:41 -51.5 Dark Down 33.0 87.8 Up 04:30:41 - 05:00:41 229

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 535167, (2023/11/10 04:43UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  2.34 121
3Iot Aur       04:56:59.6 +33:09:58  2.7 15.47 113
PPM 120015     04:33:33.0 +18:01:00  6.3  0.72 121
PPM 120041     04:34:52.7 +18:24:48  8.3  0.63 121
PPM 120027     04:34:11.2 +18:43:12 11.0  0.40 121
535167         04:32:31.0 +18:41:53 10.8       121
Positions are for J2000

Event circumstances last updated at 2019/07/05 22:27:38 UT

Marc W. Buie, Southwest Research Institute

RECON