RECON: TNO occultation with 449097

Event between (449097) 12UT68 and star GA1260:03019228 with event index number of 241265

Geocentric closest approach at 2020/01/15 09:49:48 UTC

J2000 position of star is 06:59:27.2 +37:05:53
Equinox of date position of star is 07:00:41.8 +37:04:18
Stellar brightness G=7.9, use SENSEUP=2
Star is 74 degrees from the moon. Moon is 74% illuminated.
TNO apparent brightness V=21.1

[RECON map]
TNO is 14.2 AU from the Sun and 13.3 AU from the Earth.
The TNO is moving 21.0 km/sec on the sky relative to the star, or, 7.8 arcsec/hr.
The 1-sigma error in the time of the event is 91 seconds.
The 1-sigma cross-track error in the shadow position is 527 km.
The sky-plane scale is 9643.3 km/arcsec.

The TNO has an absolute magnitude Hv=9.6
Diameter=72.4 km assuming a 5% albedo -- 3.5 sec chord
Diameter=29.6 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 449097, (2020/01/15 09:50UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:32.4 +27:58:34  1.1 13.23  63
62 Aur         07:00:24.6 +38:01:23  6.0  0.96  74
PPM 072284     06:59:41.3 +36:50:55  8.5  0.31  74
PPM 072329     07:02:08.0 +37:05:56  8.6  0.27  73
449097         07:00:48.4 +37:04:09  7.9        73
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 21.8 km RECON observability=1.0 and success probability=50.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 09:47:58 -55.4 Dark Up 60.8 258.9 Up 09:39:51 - 09:56:05 1398
Oroville 09:47:55 -55.7 Dark Up 60.8 260.1 Up 09:39:48 - 09:56:02 1345
Tonasket 09:47:55 -55.9 Dark Up 60.9 260.5 Up 09:39:48 - 09:56:02 1323
Okanogan 09:47:54 -56.2 Dark Up 61.0 260.9 Up 09:39:47 - 09:56:01 1287
Brewster 09:47:54 -56.5 Dark Up 61.2 261.2 Up 09:39:47 - 09:56:01 1255
Manson/Chelan 09:47:54 -56.8 Dark Up 61.5 261.3 Up 09:39:47 - 09:56:01 1223
Entiat 09:47:54 -57.0 Dark Up 61.6 261.6 Up 09:39:47 - 09:56:01 1200
Wenatchee 09:47:54 -57.2 Dark Up 61.7 262.0 Up 09:39:47 - 09:56:01 1173
Ellensburg 09:47:53 -57.6 Dark Up 61.9 262.5 Up 09:39:46 - 09:56:00 1126
Pasco 09:47:47 -57.4 Dark Up 61.0 265.1 Up 09:39:40 - 09:55:54 1101
Yakima 09:47:52 -57.9 Dark Up 61.9 263.3 Up 09:39:45 - 09:55:59 1086
PNWRO 09:47:46 -57.5 Dark Up 60.9 265.7 Up 09:39:39 - 09:55:53 1085
Toppenish/White Swan 09:47:51 -58.0 Dark Up 61.8 263.8 Up 09:39:44 - 09:55:58 1071
Niwot 09:46:53 -51.7 Dark Up 50.6 282.6 Up 09:38:46 - 09:55:00 1068
George/Umatilla 09:47:47 -57.8 Dark Up 61.2 265.5 Up 09:39:40 - 09:55:54 1061
Goldendale 09:47:51 -58.6 Dark Up 62.2 264.5 Up 09:39:44 - 09:55:58 1004
The Dalles 09:47:51 -58.9 Dark Up 62.5 264.6 Up 09:39:44 - 09:55:58 970
Maupin 09:47:50 -59.2 Dark Up 62.4 265.5 Up 09:39:43 - 09:55:57 933
Madras/Culver 09:47:49 -59.6 Dark Up 62.5 266.5 Up 09:39:42 - 09:55:56 878
Redmond 09:47:48 -59.8 Dark Up 62.6 267.2 Up 09:39:41 - 09:55:55 842
Sisters 09:47:49 -60.0 Dark Up 62.8 266.8 Up 09:39:42 - 09:55:56 831
Bend 09:47:48 -60.1 Dark Up 62.7 267.5 Up 09:39:41 - 09:55:55 816
Oregon Observatory 09:47:48 -60.2 Dark Up 62.8 267.7 Up 09:39:41 - 09:55:55 795
La Pine/Gilchrist 09:47:48 -60.4 Dark Up 62.8 268.1 Up 09:39:41 - 09:55:55 772
North Lake 09:47:45 -60.4 Dark Up 62.4 269.3 Up 09:39:38 - 09:55:52 750
Paisley 09:47:42 -60.5 Dark Up 62.2 270.6 Up 09:39:35 - 09:55:49 708
Lakeview 09:47:40 -60.7 Dark Up 62.0 271.7 Up 09:39:33 - 09:55:47 665
Chiloquin 09:47:46 -61.3 Dark Up 63.1 270.0 Up 09:39:39 - 09:55:53 651
Klamath Falls 09:47:45 -61.5 Dark Up 63.1 270.7 Up 09:39:38 - 09:55:52 620
Cedarville 09:47:38 -61.1 Dark Up 61.9 273.0 Up 09:39:31 - 09:55:45 606
Tulelake 09:47:43 -61.5 Dark Up 62.8 271.4 Up 09:39:36 - 09:55:50 603
Fall River/Burney 09:47:41 -62.1 Dark Up 62.7 273.2 Up 09:39:34 - 09:55:48 516
Susanville 09:47:37 -62.0 Dark Up 62.1 274.8 Up 09:39:30 - 09:55:44 480
Gimple 09:47:37 -62.3 Dark Up 62.3 275.2 Up 09:39:30 - 09:55:44 445
Greenville 09:47:37 -62.4 Dark Up 62.3 275.2 Up 09:39:30 - 09:55:44 442
Portola 09:47:35 -62.3 Dark Up 62.0 276.1 Up 09:39:28 - 09:55:42 426
Reno 09:47:32 -62.0 Dark Up 61.4 276.9 Up 09:39:25 - 09:55:39 423
Quincy 09:47:37 -62.5 Dark Up 62.3 275.6 Up 09:39:30 - 09:55:44 422
Yerington 09:47:29 -61.9 Dark Up 60.9 278.1 Up 09:39:22 - 09:55:36 393
Carson City 09:47:32 -62.2 Dark Up 61.4 277.5 Up 09:39:25 - 09:55:39 389
Tonopah 09:47:21 -61.0 Dark Up 59.2 280.5 Up 09:39:14 - 09:55:28 374
Hawthorne 09:47:26 -61.8 Dark Up 60.4 279.2 Up 09:39:19 - 09:55:33 366
Gardnerville 09:47:31 -62.3 Dark Up 61.3 278.0 Up 09:39:24 - 09:55:38 366
Lee Vining 09:47:27 -62.4 Dark Up 60.7 280.0 Up 09:39:20 - 09:55:34 292
Indian Springs 09:47:13 -60.6 Dark Up 57.8 283.4 Up 09:39:06 - 09:55:20 290
Beatty 09:47:17 -61.3 Dark Up 58.7 282.5 Up 09:39:10 - 09:55:24 279
Henderson 09:47:09 -60.3 Dark Up 57.1 284.4 Up 09:39:02 - 09:55:16 266
Bishop 09:47:23 -62.2 Dark Up 60.0 281.3 Up 09:39:16 - 09:55:30 261
DCO 09:47:01 -59.3 Dark Up 55.4 286.2 Up 09:38:54 - 09:55:08 252
Patrick 09:47:04 -59.7 Dark Up 56.1 285.6 Up 09:38:57 - 09:55:11 251
Kingman/Dolan Springs 09:47:04 -59.9 Dark Up 56.2 285.9 Up 09:38:57 - 09:55:11 222
Searchlight/Boulder City 09:47:07 -60.5 Dark Up 56.9 285.3 Up 09:39:00 - 09:55:14 212
Lone Pine 09:47:20 -62.3 Dark Up 59.6 282.6 Up 09:39:13 - 09:55:27 198
Laughlin/Bullhead City 09:47:06 -60.3 Dark Up 56.6 285.8 Up 09:38:59 - 09:55:13 198
Mohave Valley 09:47:05 -60.4 Dark Up 56.5 286.2 Up 09:38:58 - 09:55:12 171
Lake Havasu City 09:47:03 -60.4 Dark Up 56.2 286.8 Up 09:38:56 - 09:55:10 143
Parker 09:47:03 -60.4 Dark Up 56.1 287.3 Up 09:38:56 - 09:55:10 110
Blythe 09:47:02 -60.8 Dark Up 56.1 288.0 Up 09:38:55 - 09:55:09 46
CPSLO 09:47:26 -64.8 Dark Up 61.3 284.2 Up 09:39:19 - 09:55:33 -31
Idyllwild 09:47:09 -62.5 Dark Up 57.8 287.5 Up 09:39:02 - 09:55:16 -32
Calipatria 09:47:04 -61.7 Dark Up 56.7 288.6 Up 09:38:57 - 09:55:11 -42
Yuma 09:47:00 -61.2 Dark Up 55.9 289.3 Up 09:38:53 - 09:55:07 -47
Wildwood 09:47:16 -63.8 Dark Up 59.4 286.6 Up 09:39:09 - 09:55:23 -72

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 449097, (2020/01/15 09:50UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.1 +28:01:33  1.1 13.23  63
62 Aur         06:59:02.8 +38:03:06  6.0  0.96  74
PPM 072284     06:58:20.2 +36:52:37  8.5  0.31  74
PPM 072329     07:00:46.8 +37:07:42  8.6  0.27  73
449097         06:59:27.2 +37:05:53  7.9        73
Positions are for J2000

Event circumstances last updated at 2018/06/05 18:23:15 UT

Marc W. Buie, Southwest Research Institute

RECON