RECON: TNO occultation with 98UR43

Event between 98UR43 and star GA1160:01394856 with event index number of 233826

Geocentric closest approach at 2019/12/14 12:26:58 UTC

J2000 position of star is 05:34:10.9 +27:54:35
Equinox of date position of star is 05:35:20.6 +27:55:16
Stellar brightness G=15.7, use SENSEUP=128
Star is 27 degrees from the moon. Moon is 94% illuminated.
TNO apparent brightness V=23.2

[RECON map]
TNO is 30.9 AU from the Sun and 29.9 AU from the Earth.
The TNO is moving 24.4 km/sec on the sky relative to the star, or, 4.0 arcsec/hr.
The 1-sigma error in the time of the event is 235 seconds.
The 1-sigma cross-track error in the shadow position is 1576 km.
The sky-plane scale is 21688.4 km/arcsec.

The TNO has an absolute magnitude Hv=8.3
Diameter=131.2 km assuming a 5% albedo -- 5.4 sec chord
Diameter=53.6 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 98UR43, (2019/12/14 12:27UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:04.1 +16:32:52  0.8 17.63  42
Alnath         05:27:33.3 +28:37:21  1.6  1.87  29
PPM 094572     05:38:23.7 +26:56:06  5.6  1.19  26
PPM 094505     05:35:54.6 +28:03:47  8.3  0.18  27
PPM 094504     05:35:53.8 +27:54:28  9.5  0.10  27
98UR43         05:35:26.3 +27:55:19 15.7        27
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 3.8 sigma about the mid-time.
The median site spacing is 17.9 km RECON observability=1.0 and success probability=3.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 12:24:47 -31.5 Dark Up 36.1 272.1 Up 12:09:47 - 12:39:47 5422
Oroville 12:24:45 -31.5 Dark Up 36.0 272.7 Up 12:09:45 - 12:39:45 5376
Tonasket 12:24:44 -31.5 Dark Up 36.0 272.8 Up 12:09:44 - 12:39:44 5358
Okanogan 12:24:43 -31.6 Dark Up 36.1 273.0 Up 12:09:43 - 12:39:43 5325
Brewster 12:24:43 -31.7 Dark Up 36.2 273.0 Up 12:09:43 - 12:39:43 5297
Manson/Chelan 12:24:42 -31.9 Dark Up 36.5 272.9 Up 12:09:42 - 12:39:42 5268
Entiat 12:24:42 -32.0 Dark Up 36.5 273.0 Up 12:09:42 - 12:39:42 5247
Wenatchee 12:24:41 -32.1 Dark Up 36.6 273.1 Up 12:09:41 - 12:39:41 5223
Ellensburg 12:24:40 -32.2 Dark Up 36.7 273.3 Up 12:09:40 - 12:39:40 5181
Pasco 12:24:36 -31.2 Dark Up 35.7 274.8 Up 12:09:36 - 12:39:36 5164
Niwot 12:24:04 -20.4 Dark Up 24.6 286.7 Low 12:09:04 - 12:39:04 5157
PNWRO 12:24:35 -31.1 Dark Up 35.5 275.1 Up 12:09:35 - 12:39:35 5151
Yakima 12:24:39 -32.2 Dark Up 36.7 273.6 Up 12:09:39 - 12:39:39 5146
Toppenish/White Swan 12:24:38 -32.1 Dark Up 36.5 273.8 Up 12:09:38 - 12:39:38 5133
George/Umatilla 12:24:36 -31.4 Dark Up 35.8 274.9 Up 12:09:36 - 12:39:36 5129
Goldendale 12:24:37 -32.4 Dark Up 36.8 273.9 Up 12:09:37 - 12:39:37 5072
The Dalles 12:24:37 -32.7 Dark Up 37.0 273.9 Up 12:09:37 - 12:39:37 5041
Maupin 12:24:36 -32.6 Dark Up 36.9 274.3 Up 12:09:36 - 12:39:36 5009
Madras/Culver 12:24:34 -32.6 Dark Up 36.9 274.6 Up 12:09:34 - 12:39:34 4960
Redmond 12:24:33 -32.6 Dark Up 36.9 274.9 Up 12:09:33 - 12:39:33 4927
Sisters 12:24:34 -32.9 Dark Up 37.2 274.6 Up 12:09:34 - 12:39:34 4916
Bend 12:24:33 -32.7 Dark Up 37.0 274.9 Up 12:09:33 - 12:39:33 4904
Oregon Observatory 12:24:32 -32.8 Dark Up 37.1 275.0 Up 12:09:32 - 12:39:32 4884
La Pine/Gilchrist 12:24:32 -32.8 Dark Up 37.1 275.1 Up 12:09:32 - 12:39:32 4864
North Lake 12:24:30 -32.4 Dark Up 36.7 275.8 Up 12:09:30 - 12:39:30 4846
Paisley 12:24:28 -32.1 Dark Up 36.4 276.4 Up 12:09:28 - 12:39:28 4810
Lakeview 12:24:26 -32.0 Dark Up 36.2 276.9 Up 12:09:26 - 12:39:26 4772
Chiloquin 12:24:29 -33.1 Dark Up 37.3 275.7 Up 12:09:29 - 12:39:29 4754
Klamath Falls 12:24:29 -33.0 Dark Up 37.2 276.0 Up 12:09:29 - 12:39:29 4726
Cedarville 12:24:24 -31.8 Dark Up 35.9 277.5 Up 12:09:24 - 12:39:24 4720
Tulelake 12:24:27 -32.8 Dark Up 37.0 276.4 Up 12:09:27 - 12:39:27 4713
Fall River/Burney 12:24:25 -32.7 Dark Up 36.8 277.1 Up 12:09:25 - 12:39:25 4634
Susanville 12:24:22 -32.1 Dark Up 36.2 278.0 Up 12:09:22 - 12:39:22 4603
Gimple 12:24:21 -32.2 Dark Up 36.3 278.1 Up 12:09:21 - 12:39:21 4571
Greenville 12:24:22 -32.3 Dark Up 36.4 278.0 Up 12:09:22 - 12:39:22 4568
Portola 12:24:20 -31.9 Dark Up 35.9 278.5 Up 12:09:20 - 12:39:20 4555
Reno 12:24:18 -31.4 Dark Up 35.4 279.1 Up 12:09:18 - 12:39:18 4554
Quincy 12:24:21 -32.3 Dark Up 36.3 278.2 Up 12:09:21 - 12:39:21 4550
Yerington 12:24:16 -30.8 Dark Up 34.8 279.8 Up 12:09:16 - 12:39:16 4528
Carson City 12:24:18 -31.3 Dark Up 35.3 279.3 Up 12:09:18 - 12:39:18 4523
Tonopah 12:24:11 -29.2 Dark Up 33.2 281.4 Up 12:09:11 - 12:39:11 4516
Hawthorne 12:24:14 -30.4 Dark Up 34.3 280.4 Up 12:09:14 - 12:39:14 4506
Gardnerville 12:24:17 -31.3 Dark Up 35.3 279.5 Up 12:09:17 - 12:39:17 4502
Indian Springs 12:24:05 -27.8 Dark Up 31.7 283.1 Up 12:09:05 - 12:39:05 4441
Lee Vining 12:24:14 -30.7 Dark Up 34.6 280.5 Up 12:09:14 - 12:39:14 4436
Beatty 12:24:07 -28.7 Dark Up 32.6 282.4 Up 12:09:07 - 12:39:07 4429
Henderson 12:24:03 -27.2 Dark Up 31.0 283.8 Up 12:09:03 - 12:39:03 4420
Bishop 12:24:11 -30.0 Dark Up 34.0 281.3 Up 12:09:11 - 12:39:11 4409
DCO 12:23:58 -25.5 Dark Up 29.4 285.1 Low 12:08:58 - 12:38:58 4408
Patrick 12:24:00 -26.2 Dark Up 30.0 284.6 Low 12:09:00 - 12:39:00 4407
Kingman/Dolan Springs 12:24:00 -26.3 Dark Up 30.1 284.7 Up 12:09:00 - 12:39:00 4379
Searchlight/Boulder City 12:24:01 -27.0 Dark Up 30.8 284.1 Up 12:09:01 - 12:39:01 4370
Laughlin/Bullhead City 12:24:00 -26.7 Dark Up 30.5 284.5 Up 12:09:00 - 12:39:00 4357
Lone Pine 12:24:08 -29.7 Dark Up 33.5 282.0 Up 12:09:08 - 12:39:08 4352
Mohave Valley 12:24:00 -26.6 Dark Up 30.4 284.6 Up 12:09:00 - 12:39:00 4332
Lake Havasu City 12:23:58 -26.4 Dark Up 30.1 284.9 Up 12:08:58 - 12:38:58 4305
Parker 12:23:57 -26.3 Dark Up 30.0 285.2 Up 12:08:57 - 12:38:57 4274
Blythe 12:23:56 -26.4 Dark Up 30.1 285.3 Up 12:08:56 - 12:38:56 4214
Idyllwild 12:24:00 -28.2 Dark Up 31.9 284.3 Up 12:09:00 - 12:39:00 4140
CPSLO 12:24:09 -31.6 Dark Up 35.3 281.6 Up 12:09:09 - 12:39:09 4133
Calipatria 12:23:57 -27.1 Dark Up 30.7 285.2 Up 12:08:57 - 12:38:57 4131
Yuma 12:23:55 -26.3 Dark Up 29.9 285.8 Low 12:08:55 - 12:38:55 4127
Wildwood 12:24:03 -29.7 Dark Up 33.4 283.3 Up 12:09:03 - 12:39:03 4099

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 98UR43, (2019/12/14 12:27UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 17.63  42
Alnath         05:26:17.5 +28:36:23  1.6  1.87  29
PPM 094572     05:37:08.9 +26:55:28  5.6  1.19  26
PPM 094505     05:34:39.1 +28:03:04  8.3  0.18  27
PPM 094504     05:34:38.4 +27:53:45  9.5  0.10  27
98UR43         05:34:10.9 +27:54:35 15.7        27
Positions are for J2000

Event circumstances last updated at 2018/06/12 07:54:11 UT

Marc W. Buie, Southwest Research Institute

RECON