RECON: TNO occultation with 10VR11

Event between 10VR11 and star GA1100:01114394 with event index number of 1094446

Geocentric closest approach at 2021/11/22 12:27:34 UTC

J2000 position of star is 05:27:57.0 +20:17:21
Equinox of date position of star is 05:29:09.0 +20:18:17
Stellar brightness G=15.5, use SENSEUP=128
Star is 13 degrees from the moon. Moon is 91% illuminated.
TNO apparent brightness V=25.7

[RECON map]
TNO is 36.6 AU from the Sun and 35.7 AU from the Earth.
The TNO is moving 23.6 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 151 seconds.
The 1-sigma cross-track error in the shadow position is 2655 km.
The sky-plane scale is 25859.3 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=457.1 km assuming a 5% albedo -- 2.5 sec chord
Diameter=186.6 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 10VR11, (2021/11/22 12:28UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:10.8 +16:33:06  0.8 12.90  26
Alnath         05:27:40.7 +28:37:26  1.6  8.33  12
PPM 094484     05:34:57.0 +20:29:16  6.0  1.35  12
PPM 094398     05:30:16.1 +20:27:28  8.3  0.28  13
10VR11         05:29:15.0 +20:18:21 15.5        13
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 19.3 km RECON observability=1.0 and success probability=13.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 12:25:34 -27.8 Dark Up 42.6 248.3 Up 12:12:29 - 12:38:40 -1499
Kelowna 12:25:33 -27.9 Dark Up 42.9 248.5 Up 12:12:28 - 12:38:39 -1535
Peachland 12:25:34 -28.1 Dark Up 43.1 248.3 Up 12:12:28 - 12:38:39 -1550
Summerland 12:25:33 -28.0 Dark Up 43.1 248.5 Up 12:12:27 - 12:38:38 -1561
Penticton 12:25:33 -27.9 Dark Up 43.0 248.7 Up 12:12:27 - 12:38:38 -1565
Oliver 12:25:32 -27.9 Dark Up 43.2 249.0 Up 12:12:26 - 12:38:37 -1595
Anarchist Mountain Observatory 12:25:31 -27.8 Dark Up 43.1 249.3 Up 12:12:25 - 12:38:36 -1606
Tonasket 12:25:30 -27.9 Dark Up 43.3 249.5 Up 12:12:24 - 12:38:35 -1634
Okanogan 12:25:30 -28.0 Dark Up 43.5 249.7 Up 12:12:24 - 12:38:35 -1667
Brewster 12:25:29 -28.1 Dark Up 43.7 249.7 Up 12:12:24 - 12:38:35 -1695
Manson/Chelan 12:25:30 -28.4 Dark Up 44.0 249.6 Up 12:12:24 - 12:38:35 -1720
Victoria 12:25:38 -30.5 Dark Up 45.7 245.8 Up 12:12:33 - 12:38:44 -1728
Entiat 12:25:29 -28.4 Dark Up 44.1 249.7 Up 12:12:24 - 12:38:35 -1741
Wenatchee 12:25:29 -28.5 Dark Up 44.3 249.8 Up 12:12:23 - 12:38:34 -1766
Ellensburg 12:25:28 -28.6 Dark Up 44.6 250.0 Up 12:12:23 - 12:38:34 -1807
Yakima 12:25:27 -28.7 Dark Up 44.7 250.3 Up 12:12:22 - 12:38:33 -1844
Pasco 12:25:23 -27.7 Dark Up 43.9 252.0 Up 12:12:17 - 12:38:28 -1844
Toppenish/White Swan 12:25:26 -28.5 Dark Up 44.7 250.7 Up 12:12:21 - 12:38:32 -1860
PNWRO 12:25:22 -27.5 Dark Up 43.8 252.4 Up 12:12:16 - 12:38:27 -1861
Goldendale 12:25:26 -28.8 Dark Up 45.1 250.8 Up 12:12:20 - 12:38:31 -1918
The Dalles 12:25:26 -29.1 Dark Up 45.4 250.7 Up 12:12:21 - 12:38:32 -1946
Maupin 12:25:25 -29.0 Dark Up 45.5 251.2 Up 12:12:19 - 12:38:30 -1982
Niwot 12:24:39 -17.0 AT Up 35.0 267.9 Up 12:11:33 - 12:37:44 -2057
Redmond 12:25:23 -29.1 Dark Up 45.9 252.0 Up 12:12:17 - 12:38:28 -2067
SwRI 12:24:39 -17.0 AT Up 35.1 267.9 Up 12:11:33 - 12:37:44 -2070
Sisters 12:25:24 -29.4 Dark Up 46.1 251.6 Up 12:12:18 - 12:38:29 -2073
Bend 12:25:22 -29.2 Dark Up 46.0 252.0 Up 12:12:17 - 12:38:28 -2089
Oregon Observatory 12:25:22 -29.3 Dark Up 46.2 252.1 Up 12:12:17 - 12:38:28 -2108
La Pine/Gilchrist 12:25:22 -29.3 Dark Up 46.3 252.2 Up 12:12:16 - 12:38:27 -2128
North Lake 12:25:20 -28.9 Dark Up 46.0 253.2 Up 12:12:14 - 12:38:25 -2156
Paisley 12:25:18 -28.6 Dark Up 45.9 254.1 Up 12:12:12 - 12:38:23 -2199
Lakeview 12:25:16 -28.5 Dark Up 45.9 254.7 Up 12:12:11 - 12:38:22 -2242
Klamath Falls 12:25:19 -29.5 Dark Up 46.9 253.5 Up 12:12:14 - 12:38:25 -2270
Cedarville 12:25:14 -28.3 Dark Up 46.0 255.5 Up 12:12:08 - 12:38:19 -2300
Fall River/Burney 12:25:16 -29.2 Dark Up 47.0 255.0 Up 12:12:10 - 12:38:21 -2373
Susanville 12:25:12 -28.6 Dark Up 46.6 256.3 Up 12:12:07 - 12:38:18 -2417
Gimple 12:25:12 -28.8 Dark Up 46.8 256.4 Up 12:12:07 - 12:38:18 -2448
Greenville 12:25:13 -28.8 Dark Up 46.9 256.3 Up 12:12:07 - 12:38:18 -2450
Quincy 12:25:12 -28.8 Dark Up 46.9 256.5 Up 12:12:07 - 12:38:18 -2469
Portola 12:25:11 -28.4 Dark Up 46.6 257.0 Up 12:12:05 - 12:38:16 -2470
Reno 12:25:08 -27.9 Dark Up 46.2 257.8 Up 12:12:03 - 12:38:14 -2480
Carson City 12:25:07 -27.9 Dark Up 46.2 258.2 Up 12:12:02 - 12:38:13 -2514
Yerington 12:25:06 -27.4 Dark Up 45.8 258.9 Up 12:12:00 - 12:38:11 -2518
Gardnerville 12:25:07 -27.8 Dark Up 46.3 258.5 Up 12:12:02 - 12:38:13 -2537
Hawthorne 12:25:03 -27.0 Dark Up 45.5 259.8 Up 12:11:58 - 12:38:09 -2550
Tonopah 12:24:59 -25.8 Dark Up 44.5 261.3 Up 12:11:54 - 12:38:05 -2561
Lee Vining 12:25:03 -27.3 Dark Up 46.0 260.0 Up 12:11:58 - 12:38:09 -2616
Bishop 12:25:00 -26.7 Dark Up 45.5 261.1 Up 12:11:55 - 12:38:06 -2657
Beatty 12:24:55 -25.3 Dark Up 44.3 262.7 Up 12:11:50 - 12:38:01 -2661
Indian Springs 12:24:52 -24.4 Dark Up 43.5 263.8 Up 12:11:46 - 12:37:57 -2666
Henderson 12:24:49 -23.8 Dark Up 43.0 264.7 Up 12:11:44 - 12:37:55 -2700
Patrick 12:24:45 -22.8 Dark Up 42.1 266.0 Up 12:11:39 - 12:37:50 -2731
DCO 12:24:43 -22.2 Dark Up 41.6 266.7 Up 12:11:37 - 12:37:48 -2742
Searchlight/Boulder City 12:24:47 -23.7 Dark Up 43.0 265.3 Up 12:11:42 - 12:37:53 -2754
Kingman/Dolan Springs 12:24:45 -23.0 Dark Up 42.3 266.1 Up 12:11:40 - 12:37:51 -2758
Laughlin/Bullhead City 12:24:46 -23.4 Dark Up 42.7 265.8 Up 12:11:41 - 12:37:52 -2774
Mohave Valley 12:24:46 -23.3 Dark Up 42.8 266.0 Up 12:11:40 - 12:37:51 -2800
Lake Havasu City 12:24:44 -23.1 Dark Up 42.6 266.6 Up 12:11:38 - 12:37:49 -2833
George/Scottsdale 12:24:36 -20.9 Dark Up 40.6 268.7 Up 12:11:31 - 12:37:42 -2842
Parker 12:24:43 -23.0 Dark Up 42.6 266.9 Up 12:11:38 - 12:37:49 -2866
CPSLO 12:25:01 -28.3 Dark Up 47.6 261.6 Up 12:11:56 - 12:38:07 -2915
Blythe 12:24:43 -23.1 Dark Up 42.9 267.2 Up 12:11:37 - 12:37:48 -2926
Idyllwild 12:24:48 -24.9 Dark Up 44.6 265.8 Up 12:11:43 - 12:37:54 -2970
Wildwood 12:24:54 -26.5 Dark Up 46.1 264.3 Up 12:11:48 - 12:37:59 -2983
Calipatria 12:24:44 -23.8 Dark Up 43.7 267.1 Up 12:11:38 - 12:37:49 -3000
Yuma 12:24:41 -23.0 Dark Up 42.9 268.0 Up 12:11:35 - 12:37:46 -3019

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 10VR11, (2021/11/22 12:28UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 12.90  26
Alnath         05:26:17.5 +28:36:23  1.6  8.33  12
PPM 094484     05:33:38.8 +20:28:26  6.0  1.35  12
PPM 094398     05:28:58.0 +20:26:30  8.3  0.28  13
10VR11         05:27:57.0 +20:17:21 15.5        13
Positions are for J2000

Event circumstances last updated at 2020/03/12 21:39:03 UT

Marc W. Buie, Southwest Research Institute

RECON