RECON: TNO occultation with 04TE282

Event between 04TE282 and star GA1240:01884995 with event index number of 214970

Geocentric closest approach at 2019/10/17 04:58:32 UTC

J2000 position of star is 05:27:01.2 +35:52:32
Equinox of date position of star is 05:28:18.1 +35:53:25
Stellar brightness G=12.2, use SENSEUP=16
Star is 27 degrees from the moon. Moon is 90% illuminated.
TNO apparent brightness V=23.2

[RECON map]
TNO is 30.1 AU from the Sun and 29.6 AU from the Earth.
The TNO is moving 12.2 km/sec on the sky relative to the star, or, 2.1 arcsec/hr.
The 1-sigma error in the time of the event is 411 seconds.
The 1-sigma cross-track error in the shadow position is 5141 km.
The sky-plane scale is 21454.8 km/arcsec.

The TNO has an absolute magnitude Hv=8.3
Diameter=130.0 km assuming a 5% albedo -- 10.6 sec chord
Diameter=53.1 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 04TE282, (2019/10/17 04:59UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:03.5 +16:32:51  0.8 22.45   9
3Iot Aur       04:58:17.1 +33:11:44  2.7  6.75  21
21Sig Aur      05:26:00.0 +37:24:07  6.4  1.58  28
PPM 070337     05:27:04.4 +35:39:49  8.2  0.34  27
PPM 070352     05:27:46.4 +36:10:38 10.0  0.31  27
04TE282        05:28:21.0 +35:53:27 12.2        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 2.2 sigma about the mid-time.
The median site spacing is 20.8 km RECON observability=0.2 and success probability=6.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 05:06:18 -37.8 Dark Up 21.2 59.0 Low 04:51:18 - 05:21:18 -3673
Kelowna 05:06:18 -37.9 Dark Up 21.4 59.2 Low 04:51:18 - 05:21:18 -3684
Penticton 05:06:20 -38.1 Dark Up 21.1 59.0 Low 04:51:20 - 05:21:20 -3709
Okanagan Falls 05:06:20 -38.2 Dark Up 21.0 58.9 Low 04:51:20 - 05:21:20 -3724
Oliver 05:06:21 -38.3 Dark Up 21.0 58.9 Low 04:51:21 - 05:21:21 -3740
Anarchist Mountain Observatory 05:06:21 -38.5 Dark Up 21.0 59.0 Low 04:51:21 - 05:21:21 -3763
Oroville 05:06:22 -38.5 Dark Up 20.9 58.9 Low 04:51:22 - 05:21:22 -3767
Tonasket 05:06:22 -38.6 Dark Up 20.8 58.8 Low 04:51:22 - 05:21:22 -3787
Okanogan 05:06:24 -38.8 Dark Up 20.5 58.6 Low 04:51:24 - 05:21:24 -3811
Brewster 05:06:24 -38.8 Dark Up 20.3 58.4 Low 04:51:24 - 05:21:24 -3826
Manson/Chelan 05:06:25 -38.7 Dark Up 20.0 58.1 Really Low 04:51:25 - 05:21:25 -3829
Entiat 05:06:27 -38.8 Dark Up 19.8 58.0 Really Low 04:51:27 - 05:21:27 -3845
Wenatchee 05:06:27 -38.9 Dark Up 19.6 57.9 Really Low 04:51:27 - 05:21:27 -3863
Ellensburg 05:06:29 -39.0 Dark Up 19.3 57.6 Really Low 04:51:29 - 05:21:29 -3890
Yakima 05:06:31 -39.3 Dark Up 19.1 57.5 Really Low 04:51:31 - 05:21:31 -3925
Toppenish/White Swan 05:06:30 -39.5 Dark Up 19.0 57.6 Really Low 04:51:30 - 05:21:30 -3952
Goldendale 05:06:31 -39.5 Dark Up 18.5 57.1 Really Low 04:51:31 - 05:21:31 -3981
The Dalles 05:06:35 -39.5 Dark Up 18.2 56.9 Really Low 04:51:35 - 05:21:35 -3985
Pasco 05:06:29 -40.3 Dark Up 19.7 58.3 Really Low 04:51:29 - 05:21:29 -4019
Maupin 05:06:35 -39.8 Dark Up 18.0 56.8 Really Low 04:51:35 - 05:21:35 -4026
George/Umatilla 05:06:30 -40.3 Dark Up 19.4 58.0 Really Low 04:51:30 - 05:21:30 -4039
PNWRO 05:06:30 -40.5 Dark Up 19.7 58.3 Really Low 04:51:30 - 05:21:30 -4051
Madras/Culver 05:06:36 -40.0 Dark Up 17.7 56.7 Really Low 04:51:36 - 05:21:36 -4073
Sisters 05:06:37 -39.9 Dark Up 17.2 56.3 Really Low 04:51:37 - 05:21:37 -4081
Redmond 05:06:39 -40.2 Dark Up 17.5 56.5 Really Low 04:51:39 - 05:21:39 -4102
Bend 05:06:37 -40.2 Dark Up 17.2 56.4 Really Low 04:51:37 - 05:21:37 -4115
Oregon Observatory 05:06:39 -40.2 Dark Up 17.1 56.3 Really Low 04:51:39 - 05:21:39 -4124
La Pine/Gilchrist 05:06:38 -40.3 Dark Up 16.9 56.2 Really Low 04:51:38 - 05:21:38 -4139
North Lake 05:06:40 -40.9 Dark Up 17.1 56.4 Really Low 04:51:40 - 05:21:40 -4206
Chiloquin 05:06:42 -40.7 Dark Up 16.1 55.7 Really Low 04:51:42 - 05:21:42 -4220
Klamath Falls 05:06:43 -40.9 Dark Up 16.0 55.7 Really Low 04:51:43 - 05:21:43 -4255
Paisley 05:06:39 -41.4 Dark Up 17.0 56.5 Really Low 04:51:39 - 05:21:39 -4273
Tulelake 05:06:42 -41.2 Dark Up 16.0 55.8 Really Low 04:51:42 - 05:21:42 -4293
Lakeview 05:06:40 -41.8 Dark Up 16.8 56.5 Really Low 04:51:40 - 05:21:40 -4327
Fall River/Burney 05:06:44 -41.7 Dark Up 15.5 55.6 Really Low 04:51:44 - 05:21:44 -4378
Cedarville 05:06:42 -42.3 Dark Up 16.6 56.4 Really Low 04:51:42 - 05:21:42 -4395
Susanville 05:06:45 -42.5 Dark Up 15.6 55.9 Really Low 04:51:45 - 05:21:45 -4471
Greenville 05:06:46 -42.5 Dark Up 15.3 55.7 Really Low 04:51:46 - 05:21:46 -4481
Gimple 05:06:45 -42.5 Dark Up 15.4 55.7 Really Low 04:51:45 - 05:21:45 -4486
Quincy 05:06:47 -42.6 Dark Up 15.2 55.6 Really Low 04:51:47 - 05:21:47 -4500
Portola 05:06:46 -43.0 Dark Up 15.4 55.8 Really Low 04:51:46 - 05:21:46 -4535
Reno 05:06:45 -43.5 Dark Up 15.7 56.1 Really Low 04:51:45 - 05:21:45 -4591
Carson City 05:06:46 -43.7 Dark Up 15.5 56.0 Really Low 04:51:46 - 05:21:46 -4625
Gardnerville 05:06:46 -43.9 Dark Up 15.4 56.0 Really Low 04:51:46 - 05:21:46 -4649
Yerington 05:06:45 -44.2 Dark Up 15.8 56.3 Really Low 04:51:45 - 05:21:45 -4674
Hawthorne 05:06:45 -44.8 Dark Up 15.9 56.5 Really Low 04:51:45 - 05:21:45 -4742
Lee Vining 05:06:48 -44.8 Dark Up 15.3 56.1 Really Low 04:51:48 - 05:21:48 -4770
Tonopah 05:06:44 -46.0 Dark Up 16.6 57.1 Really Low 04:51:44 - 05:21:44 -4855
Bishop 05:06:50 -45.6 Dark Up 15.4 56.3 Really Low 04:51:50 - 05:21:50 -4861
CPSLO 05:06:54 -44.9 Dark Up 12.8 54.8 Really Low 04:51:54 - 05:21:54 -4931
Lone Pine 05:06:48 -46.2 Dark Up 15.2 56.3 Really Low 04:51:48 - 05:21:48 -4947
Beatty 05:06:45 -46.9 Dark Up 16.2 57.0 Really Low 04:51:45 - 05:21:45 -4984
Indian Springs 05:06:43 -47.8 Dark Up 16.8 57.4 Really Low 04:51:43 - 05:21:43 -5067
Wildwood 05:06:53 -47.0 Dark Up 13.5 55.5 Really Low 04:51:53 - 05:21:53 -5150
Henderson 05:06:44 -48.6 Dark Up 17.0 57.6 Really Low 04:51:44 - 05:21:44 -5151
Niwot 05:06:17 -51.9 Dark Up 25.6 63.5 Low 04:51:17 - 05:21:17 -5178
Searchlight/Boulder City 05:06:46 -49.0 Dark Up 16.7 57.5 Really Low 04:51:46 - 05:21:46 -5208
Laughlin/Bullhead City 05:06:46 -49.4 Dark Up 16.8 57.6 Really Low 04:51:46 - 05:21:46 -5252
Patrick 05:06:41 -49.7 Dark Up 17.4 57.9 Really Low 04:51:41 - 05:21:41 -5263
Kingman/Dolan Springs 05:06:43 -49.7 Dark Up 17.2 57.8 Really Low 04:51:43 - 05:21:43 -5275
Mohave Valley 05:06:43 -49.5 Dark Up 16.6 57.5 Really Low 04:51:43 - 05:21:43 -5278
Idyllwild 05:06:48 -48.5 Dark Up 14.5 56.3 Really Low 04:51:48 - 05:21:48 -5280
DCO 05:06:41 -50.4 Dark Up 17.7 58.2 Really Low 04:51:41 - 05:21:41 -5326
Lake Havasu City 05:06:43 -49.9 Dark Up 16.6 57.5 Really Low 04:51:43 - 05:21:43 -5328
Parker 05:06:46 -50.1 Dark Up 16.4 57.4 Really Low 04:51:46 - 05:21:46 -5362
Calipatria 05:06:48 -49.7 Dark Up 15.0 56.7 Really Low 04:51:48 - 05:21:48 -5397
Blythe 05:06:46 -50.1 Dark Up 15.9 57.2 Really Low 04:51:46 - 05:21:46 -5397
Yuma 05:06:47 -50.6 Dark Up 15.4 57.0 Really Low 04:51:47 - 05:21:47 -5482

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 04TE282, (2019/10/17 04:59UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 22.45   9
3Iot Aur       04:56:59.6 +33:09:58  2.7  6.75  21
21Sig Aur      05:24:39.2 +37:23:07  6.4  1.58  28
PPM 070337     05:25:44.8 +35:38:51  8.2  0.34  27
PPM 070352     05:26:26.4 +36:09:42 10.0  0.31  27
04TE282        05:27:01.2 +35:52:32 12.2        27
Positions are for J2000

Event circumstances last updated at 2019/01/28 21:55:10 UT

Marc W. Buie, Southwest Research Institute

RECON