RECON: TNO occultation with 499514

Event between (499514) 10OO127 and star GA1040:18752756 with event index number of 1257276

Geocentric closest approach at 2022/07/21 06:54:46 UTC

J2000 position of star is 22:26:53.1 +14:27:29
Equinox of date position of star is 22:27:53.6 +14:33:49
Stellar brightness G=15.8, use SENSEUP=128
Star is 56 degrees from the moon. Moon is 43% illuminated.
TNO apparent brightness V=26.6

[RECON map]
TNO is 45.0 AU from the Sun and 44.3 AU from the Earth.
The TNO is moving 17.7 km/sec on the sky relative to the star, or, 2.0 arcsec/hr.
The 1-sigma error in the time of the event is 168 seconds.
The 1-sigma cross-track error in the shadow position is 1792 km.
The sky-plane scale is 32122.5 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=724.5 km assuming a 5% albedo -- 3.4 sec chord
Diameter=295.8 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURS
 
 
 
 
 
 

Star training set for 499514, (2022/07/21 06:55UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:12.1 +45:21:43  1.3 38.01  77
Markab         23:05:53.2 +15:19:37  2.5  9.18  47
PPM 141560     22:33:46.4 +13:09:40  6.5  1.99  55
PPM 141412     22:25:06.5 +15:23:46  6.8  1.08  57
PPM 141483     22:29:14.9 +14:28:14 10.0  0.32  56
PPM 141477     22:29:00.3 +14:35:47 10.6  0.25  56
499514         22:27:59.4 +14:34:25 15.8        56
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 21.5 km RECON observability=1.0 and success probability=2.5%
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 06:57:49 -17.8 AT Down 34.6 110.9 Up 06:43:20 - 07:12:17 -4738
Kelowna 06:57:50 -18.2 Dark Down 34.7 110.5 Up 06:43:22 - 07:12:19 -4767
Peachland 06:57:52 -18.2 Dark Down 34.6 110.1 Up 06:43:23 - 07:12:20 -4772
Summerland 06:57:52 -18.4 Dark Down 34.7 110.1 Up 06:43:23 - 07:12:20 -4786
Penticton 06:57:52 -18.5 Dark Down 34.8 110.2 Up 06:43:23 - 07:12:20 -4793
Victoria 06:58:05 -18.6 Dark Down 32.7 106.2 Up 06:43:36 - 07:12:33 -4819
Oliver 06:57:53 -18.8 Dark Down 34.9 110.0 Up 06:43:25 - 07:12:22 -4822
Anarchist Mountain Observatory 06:57:53 -19.0 Dark Down 35.1 110.0 Up 06:43:25 - 07:12:22 -4839
Tonasket 06:57:54 -19.3 Dark Down 35.1 109.8 Up 06:43:26 - 07:12:23 -4864
Okanogan 06:57:56 -19.6 Dark Down 35.1 109.4 Up 06:43:28 - 07:12:25 -4890
Brewster 06:57:58 -19.8 Dark Down 35.1 109.1 Up 06:43:29 - 07:12:26 -4910
Manson/Chelan 06:58:00 -19.9 Dark Down 34.9 108.6 Up 06:43:31 - 07:12:28 -4922
Entiat 06:58:01 -20.1 Dark Down 35.0 108.4 Up 06:43:32 - 07:12:29 -4939
Wenatchee 06:58:02 -20.3 Dark Down 35.0 108.1 Up 06:43:33 - 07:12:30 -4959
Ellensburg 06:58:03 -20.7 Dark Down 35.0 107.7 Up 06:43:34 - 07:12:31 -4991
Yakima 06:58:05 -21.1 Dark Down 35.1 107.4 Up 06:43:37 - 07:12:34 -5026
Toppenish/White Swan 06:58:06 -21.3 Dark Down 35.3 107.4 Up 06:43:37 - 07:12:34 -5047
Pasco 06:58:03 -21.7 Dark Down 36.1 108.4 Up 06:43:34 - 07:12:31 -5077
Goldendale 06:58:09 -21.8 Dark Down 35.2 106.7 Up 06:43:40 - 07:12:37 -5088
The Dalles 06:58:10 -21.9 Dark Down 35.0 106.2 Up 06:43:42 - 07:12:39 -5102
PNWRO 06:58:03 -22.0 Dark Down 36.4 108.4 Up 06:43:35 - 07:12:32 -5102
Maupin 06:58:12 -22.3 Dark Down 35.2 106.0 Up 06:43:43 - 07:12:40 -5140
Sisters 06:58:16 -23.0 Dark Down 35.1 105.0 Up 06:43:48 - 07:12:45 -5209
Redmond 06:58:15 -23.2 Dark Down 35.4 105.3 Up 06:43:46 - 07:12:43 -5218
Bend 06:58:16 -23.3 Dark Down 35.3 105.1 Up 06:43:48 - 07:12:45 -5234
Oregon Observatory 06:58:17 -23.5 Dark Down 35.3 104.9 Up 06:43:49 - 07:12:46 -5247
La Pine/Gilchrist 06:58:18 -23.6 Dark Down 35.3 104.7 Up 06:43:49 - 07:12:46 -5264
North Lake 06:58:18 -24.2 Dark Down 35.8 104.9 Up 06:43:50 - 07:12:47 -5313
Paisley 06:58:19 -24.8 Dark Down 36.2 104.8 Up 06:43:50 - 07:12:47 -5369
Klamath Falls 06:58:24 -25.0 Dark Down 35.5 103.5 Up 06:43:55 - 07:12:52 -5390
Lakeview 06:58:20 -25.3 Dark Down 36.5 104.6 Up 06:43:52 - 07:12:49 -5418
Cedarville 06:58:22 -26.0 Dark Down 36.8 104.2 Up 06:43:53 - 07:12:50 -5481
Fall River/Burney 06:58:26 -26.2 Dark Down 36.0 102.9 Up 06:43:58 - 07:12:55 -5504
Susanville 06:58:27 -26.9 Dark Down 36.7 103.1 Up 06:43:58 - 07:12:55 -5575
Greenville 06:58:29 -27.1 Dark Down 36.6 102.6 Up 06:44:00 - 07:12:57 -5596
Gimple 06:58:28 -27.2 Dark Down 36.6 102.7 Up 06:43:59 - 07:12:56 -5597
Quincy 06:58:29 -27.3 Dark Down 36.6 102.5 Up 06:44:00 - 07:12:57 -5614
Portola 06:58:28 -27.6 Dark Down 37.0 102.8 Up 06:43:59 - 07:12:56 -5634
Reno 06:58:27 -28.0 Dark Down 37.5 103.1 Up 06:43:59 - 07:12:56 -5670
Carson City 06:58:27 -28.3 Dark Down 37.6 102.8 Up 06:43:59 - 07:12:56 -5704
Gardnerville 06:58:29 -28.6 Dark Down 37.7 102.7 Up 06:44:00 - 07:12:57 -5728
Yerington 06:58:27 -28.7 Dark Down 38.2 103.2 Up 06:43:59 - 07:12:56 -5734
Hawthorne 06:58:27 -29.2 Dark Down 38.7 103.2 Up 06:43:59 - 07:12:56 -5787
Lee Vining 06:58:30 -29.7 Dark Down 38.4 102.4 Up 06:44:02 - 07:12:59 -5832
Niwot 06:57:37 -29.4 Dark Up 47.8 116.3 Up 06:43:09 - 07:12:06 -5843
SwRI 06:57:38 -29.5 Dark Up 47.8 116.1 Up 06:43:09 - 07:12:06 -5852
Tonopah 06:58:24 -30.0 Dark Down 39.9 103.9 Up 06:43:56 - 07:12:53 -5856
Bishop 06:58:29 -30.4 Dark Down 39.1 102.5 Up 06:44:01 - 07:12:58 -5902
Beatty 06:58:26 -31.2 Dark Down 40.5 103.3 Up 06:43:58 - 07:12:55 -5975
Indian Springs 06:58:23 -31.7 Dark Down 41.4 103.9 Up 06:43:55 - 07:12:52 -6025
CPSLO 06:58:41 -31.8 Dark Down 37.8 99.3 Up 06:44:13 - 07:13:10 -6060
Henderson 06:58:23 -32.4 Dark Down 42.1 103.9 Up 06:43:54 - 07:12:51 -6089
Searchlight/Boulder City 06:58:24 -32.9 Dark Down 42.3 103.5 Up 06:43:55 - 07:12:52 -6146
Patrick 06:58:20 -33.2 Dark Down 43.1 104.2 Up 06:43:52 - 07:12:49 -6170
Laughlin/Bullhead City 06:58:24 -33.3 Dark Down 42.6 103.5 Up 06:43:55 - 07:12:52 -6182
Kingman/Dolan Springs 06:58:21 -33.4 Dark Down 43.0 103.9 Up 06:43:53 - 07:12:50 -6188
Mohave Valley 06:58:24 -33.6 Dark Down 42.7 103.2 Up 06:43:56 - 07:12:53 -6209
DCO 06:58:18 -33.6 Dark Down 43.7 104.5 Up 06:43:50 - 07:12:47 -6212
Wildwood 06:58:39 -33.5 Dark Down 39.6 99.7 Up 06:44:11 - 07:13:08 -6217
Lake Havasu City 06:58:24 -34.0 Dark Down 43.0 103.1 Up 06:43:56 - 07:12:53 -6253
Idyllwild 06:58:35 -34.3 Dark Down 41.2 100.7 Up 06:44:06 - 07:13:03 -6286
Parker 06:58:24 -34.4 Dark Down 43.1 102.8 Up 06:43:56 - 07:12:53 -6288
Blythe 06:58:28 -34.8 Dark Down 42.9 102.1 Up 06:43:59 - 07:12:56 -6335
Calipatria 06:58:32 -35.1 Dark Down 42.3 101.0 Up 06:44:04 - 07:13:01 -6368
George/Scottsdale 06:58:17 -35.2 Dark Down 45.1 104.2 Up 06:43:49 - 07:12:46 -6372
Yuma 06:58:30 -35.7 Dark Down 43.1 101.2 Up 06:44:01 - 07:12:58 -6427

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 499514, (2022/07/21 06:55UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 38.01  77
Markab         23:04:45.8 +15:12:18  2.5  9.18  47
PPM 141560     22:32:39.6 +13:02:41  6.5  1.99  55
PPM 141412     22:24:00.5 +15:16:53  6.8  1.08  57
PPM 141483     22:28:08.5 +14:21:18 10.0  0.32  56
PPM 141477     22:27:54.0 +14:28:51 10.6  0.25  56
499514         22:26:53.1 +14:27:29 15.8        56
Positions are for J2000

Event circumstances last updated at 2020/08/03 20:58:37 UT

Marc W. Buie, Southwest Research Institute

RECON