RECON: TNO occultation with 11VZ24

Event between 11VZ24 and star GA0920:00496770 with event index number of 1574329

Geocentric closest approach at 2020/02/10 06:24:58 UTC

J2000 position of star is 04:50:09.9 +03:22:19
Equinox of date position of star is 04:51:11.3 +03:24:15
Stellar brightness G=16.6, use SENSEUP=128
Star is 85 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=22.6

[RECON map]
TNO is 35.7 AU from the Sun and 35.3 AU from the Earth.
The TNO is moving 9.5 km/sec on the sky relative to the star, or, 1.3 arcsec/hr.
The 1-sigma error in the time of the event is 283 seconds.
The 1-sigma cross-track error in the shadow position is 1872 km.
The sky-plane scale is 25633.1 km/arcsec.

The TNO has an absolute magnitude Hv=6.9
Diameter=246.6 km assuming a 5% albedo -- 25.9 sec chord
Diameter=100.7 km assuming a 30% albedo -- 10.6 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 11VZ24, (2020/02/10 06:25UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:15:30.3 -08:10:47  0.1 13.07  82
Bellatrix      05:26:12.6 +06:21:59  1.6  9.20  75
8Pi 5Ori       04:55:18.0 +02:28:20  3.7  1.38  84
PPM 148033     04:51:16.8 +03:43:01  7.3  0.31  84
PPM 148013     04:50:19.2 +03:18:12  8.8  0.25  85
11VZ24         04:51:13.2 +03:24:19 16.6        84
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 3.2 sigma about the mid-time.
The median site spacing is 3.4 km RECON observability=1.0 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)
SwRI 06:24:42 -62.2 Dark Up 26.2 250.9 Low 06:09:42 - 06:39:42 11134
Kelowna 06:27:10 -48.7 Dark Up 30.1 234.3 Up 06:12:10 - 06:42:10 10722
Anarchist Mountain Observatory 06:27:00 -49.4 Dark Up 30.7 234.7 Up 06:12:00 - 06:42:00 10714
Penticton 06:27:04 -48.9 Dark Up 30.5 234.2 Up 06:12:04 - 06:42:04 10712
Oroville 06:26:59 -49.4 Dark Up 30.8 234.6 Up 06:11:59 - 06:41:59 10710
Okanagan Falls 06:27:10 -49.1 Dark Up 30.6 234.3 Up 06:12:10 - 06:42:10 10709
Oliver 06:27:03 -49.2 Dark Up 30.7 234.4 Up 06:12:03 - 06:42:03 10708
Summerland 06:27:11 -48.8 Dark Up 30.5 234.1 Up 06:12:11 - 06:42:11 10708
Tonasket 06:27:00 -49.6 Dark Up 30.9 234.7 Up 06:12:00 - 06:42:00 10708
Okanogan 06:26:59 -49.8 Dark Up 31.2 234.8 Up 06:11:59 - 06:41:59 10698
PNWRO 06:26:28 -51.8 Dark Up 32.2 236.5 Up 06:11:28 - 06:41:28 10694
Pasco 06:26:29 -51.5 Dark Up 32.2 236.2 Up 06:11:29 - 06:41:29 10689
Brewster 06:26:52 -49.9 Dark Up 31.5 234.7 Up 06:11:52 - 06:41:52 10686
Patrick 06:24:19 -61.7 Dark Up 34.2 246.6 Up 06:09:19 - 06:39:19 10678
George/Umatilla 06:26:31 -51.6 Dark Up 32.5 236.1 Up 06:11:31 - 06:41:31 10674
Manson/Chelan 06:26:49 -49.8 Dark Up 31.8 234.4 Up 06:11:49 - 06:41:49 10668
Kingman/Dolan Springs 06:24:16 -61.7 Dark Up 34.5 246.6 Up 06:09:16 - 06:39:16 10663
Wenatchee 06:26:47 -50.1 Dark Up 32.2 234.5 Up 06:11:47 - 06:41:47 10655
Henderson 06:24:30 -60.6 Dark Up 34.8 245.4 Up 06:09:30 - 06:39:30 10645
Ellensburg 06:26:43 -50.3 Dark Up 32.5 234.4 Up 06:11:43 - 06:41:43 10640
Laughlin/Bullhead City 06:24:19 -61.4 Dark Up 34.9 246.2 Up 06:09:19 - 06:39:19 10638
Toppenish/White Swan 06:26:36 -50.8 Dark Up 32.8 234.9 Up 06:11:36 - 06:41:36 10637
Yakima 06:26:39 -50.6 Dark Up 32.8 234.6 Up 06:11:39 - 06:41:39 10633
Searchlight/Boulder City 06:24:23 -61.0 Dark Up 35.0 245.8 Up 06:09:23 - 06:39:23 10631
Mohave Valley 06:24:17 -61.6 Dark Up 35.0 246.4 Up 06:09:17 - 06:39:17 10630
Lake Havasu City 06:24:12 -62.0 Dark Up 35.0 246.8 Up 06:09:12 - 06:39:12 10629
Indian Springs 06:24:37 -59.8 Dark Up 35.0 244.5 Up 06:09:37 - 06:39:37 10629
Parker 06:24:08 -62.2 Dark Up 35.1 247.1 Up 06:09:08 - 06:39:08 10619
Goldendale 06:26:42 -51.0 Dark Up 33.4 234.8 Up 06:11:42 - 06:41:42 10609
Tonopah 06:24:59 -58.0 Dark Up 35.4 242.3 Up 06:09:59 - 06:39:59 10599
The Dalles 06:26:33 -50.9 Dark Up 33.7 234.5 Up 06:11:33 - 06:41:33 10589
Blythe 06:24:03 -62.3 Dark Up 35.5 247.2 Up 06:09:03 - 06:39:03 10588
Beatty 06:24:47 -59.0 Dark Up 35.6 243.4 Up 06:09:47 - 06:39:47 10588
Maupin 06:26:28 -51.3 Dark Up 33.9 234.8 Up 06:11:28 - 06:41:28 10586
Madras/Culver 06:26:22 -51.6 Dark Up 34.3 235.1 Up 06:11:22 - 06:41:22 10574
Redmond 06:26:18 -51.8 Dark Up 34.5 235.2 Up 06:11:18 - 06:41:18 10565
Paisley 06:26:07 -53.2 Dark Up 35.0 236.7 Up 06:11:07 - 06:41:07 10560
Lakeview 06:26:06 -53.6 Dark Up 35.2 237.2 Up 06:11:06 - 06:41:06 10558
North Lake 06:26:06 -52.6 Dark Up 35.0 236.0 Up 06:11:06 - 06:41:06 10556
Yuma 06:23:54 -62.8 Dark Up 36.0 247.7 Up 06:08:54 - 06:38:54 10556
Bend 06:26:16 -51.9 Dark Up 34.7 235.2 Up 06:11:16 - 06:41:16 10554
Cedarville 06:26:07 -54.2 Dark Up 35.4 237.7 Up 06:11:07 - 06:41:07 10552
Sisters 06:26:22 -51.6 Dark Up 34.7 234.8 Up 06:11:22 - 06:41:22 10548
Hawthorne 06:25:10 -56.9 Dark Up 36.1 240.8 Up 06:10:10 - 06:40:10 10546
Oregon Observatory 06:26:15 -51.9 Dark Up 34.9 235.1 Up 06:11:15 - 06:41:15 10545
La Pine/Gilchrist 06:26:14 -52.0 Dark Up 35.1 235.2 Up 06:11:14 - 06:41:14 10538
Yerington 06:25:16 -56.3 Dark Up 36.2 240.0 Up 06:10:16 - 06:40:16 10533
Calipatria 06:24:03 -62.0 Dark Up 36.5 246.8 Up 06:09:03 - 06:39:03 10527
Reno 06:26:07 -55.7 Dark Up 36.3 239.3 Up 06:11:07 - 06:41:07 10525
Bishop 06:24:57 -57.7 Dark Up 36.6 241.7 Up 06:09:57 - 06:39:57 10524
Lone Pine 06:24:49 -58.4 Dark Up 36.7 242.5 Up 06:09:49 - 06:39:49 10517
Carson City 06:25:22 -55.8 Dark Up 36.5 239.4 Up 06:10:22 - 06:40:22 10509
Lee Vining 06:25:06 -56.9 Dark Up 36.7 240.7 Up 06:10:06 - 06:40:06 10507
Susanville 06:26:06 -54.6 Dark Up 36.3 237.9 Up 06:11:06 - 06:41:06 10504
Gardnerville 06:25:14 -55.9 Dark Up 36.7 239.5 Up 06:10:14 - 06:40:14 10504
Tulelake 06:26:06 -53.1 Dark Up 36.0 236.2 Up 06:11:06 - 06:41:06 10500
Portola 06:26:06 -55.1 Dark Up 36.5 238.5 Up 06:11:06 - 06:41:06 10499
Chiloquin 06:26:10 -52.5 Dark Up 35.9 235.5 Up 06:11:10 - 06:41:10 10497
Klamath Falls 06:26:06 -52.8 Dark Up 36.1 235.8 Up 06:11:06 - 06:41:06 10493
Idyllwild 06:24:12 -60.9 Dark Up 37.1 245.4 Up 06:09:12 - 06:39:12 10491
Gimple 06:26:06 -54.7 Dark Up 36.6 237.9 Up 06:11:06 - 06:41:06 10487
Greenville 06:26:07 -54.6 Dark Up 36.7 237.8 Up 06:11:07 - 06:41:07 10483
Fall River/Burney 06:26:07 -53.8 Dark Up 36.5 236.8 Up 06:11:07 - 06:41:07 10483
Quincy 06:26:07 -54.7 Dark Up 36.8 238.0 Up 06:11:07 - 06:41:07 10479
Wildwood 06:24:26 -59.4 Dark Up 38.3 243.6 Up 06:09:26 - 06:39:26 10410
CPSLO 06:24:47 -57.4 Dark Up 39.2 241.0 Up 06:09:47 - 06:39:47 10347

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 11VZ24, (2020/02/10 06:25UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:14:32.3 -08:12:06  0.1 13.07  82
Bellatrix      05:25:07.8 +06:20:58  1.6  9.20  75
8Pi 5Ori       04:54:15.1 +02:26:26  3.7  1.38  84
PPM 148033     04:50:13.3 +03:41:01  7.3  0.31  84
PPM 148013     04:49:15.9 +03:16:10  8.8  0.25  85
11VZ24         04:50:09.9 +03:22:19 16.6        84
Positions are for J2000

Event circumstances last updated at 2019/07/02 02:28:49 UT

Marc W. Buie, Southwest Research Institute

RECON