RECON: TNO occultation with 28978

Event between (28978) Ixion and star GA0600:28785057 with event index number of 268904

Geocentric closest approach at 2020/06/08 07:30:06 UTC

J2000 position of star is 17:55:46.2 -29:48:02
Equinox of date position of star is 17:56:58.3 -29:48:08
Stellar brightness G=15.9, use SENSEUP=128
Star is 22 degrees from the moon. Moon is 92% illuminated.
TNO apparent brightness V=19.5

[RECON map]
TNO is 39.0 AU from the Sun and 38.0 AU from the Earth.
The TNO is moving 24.4 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 204 seconds.
The 1-sigma cross-track error in the shadow position is 2368 km.
The sky-plane scale is 27554.7 km/arcsec.

The TNO has an absolute magnitude Hv=3.6
Diameter=1148.2 km assuming a 5% albedo -- 47.1 sec chord
Diameter=468.7 km assuming a 30% albedo -- 19.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 28978, (2020/06/08 07:30UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:39.8 -26:28:32  0.9 19.31  41
34Ups Sco      17:32:09.3 -37:18:36  2.7  9.12  29
Gam1Sgr        18:06:19.6 -29:34:38  4.7  2.02  20
PPM 267505     17:56:27.3 -29:48:48  8.5  0.14  22
28978          17:57:04.7 -29:48:08 15.9        21
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 4.4 sigma about the mid-time.
The median site spacing is 11.1 km RECON observability=0.3 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Rutland 07:32:26 -17.0 AT Up 8.7 164.2 Really Low 07:17:26 - 07:47:26 14647
Penticton 07:32:27 -17.4 AT Up 9.0 164.0 Really Low 07:17:27 - 07:47:27 14638
Okanagan Falls 07:32:27 -17.5 AT Up 9.2 164.0 Really Low 07:17:27 - 07:47:27 14634
Southern Okanagan 07:32:27 -17.7 AT Up 9.4 164.0 Really Low 07:17:27 - 07:47:27 14631
Oroville 07:32:27 -18.0 AT Up 9.6 164.1 Really Low 07:17:27 - 07:47:27 14626
Tonasket 07:32:27 -18.2 Dark Up 9.8 164.1 Really Low 07:17:27 - 07:47:27 14621
Okanogan 07:32:28 -18.5 Dark Up 10.1 164.0 Really Low 07:17:28 - 07:47:28 14613
Brewster 07:32:29 -18.8 Dark Up 10.4 163.8 Really Low 07:17:29 - 07:47:29 14606
Manson/Chelan 07:32:29 -19.0 Dark Up 10.5 163.5 Really Low 07:17:29 - 07:47:29 14598
Entiat 07:32:31 -19.2 Dark Up 10.7 163.4 Really Low 07:17:31 - 07:47:31 14593
Wenatchee 07:32:31 -19.4 Dark Up 10.9 163.3 Really Low 07:17:31 - 07:47:31 14586
Ellensburg 07:32:32 -19.8 Dark Up 11.3 163.1 Really Low 07:17:32 - 07:47:32 14574
Yakima 07:32:33 -20.2 Dark Up 11.7 163.0 Really Low 07:17:33 - 07:47:33 14564
Pasco 07:32:30 -20.7 Dark Up 12.3 164.3 Really Low 07:17:30 - 07:47:30 14564
Toppenish/White Swan 07:32:33 -20.4 Dark Up 11.9 163.2 Really Low 07:17:33 - 07:47:33 14559
PNWRO 07:32:28 -20.9 Dark Up 12.5 164.4 Really Low 07:17:28 - 07:47:28 14558
George/Umatilla 07:32:31 -21.0 Dark Up 12.5 164.0 Really Low 07:17:31 - 07:47:31 14553
Goldendale 07:32:35 -21.0 Dark Up 12.3 162.8 Really Low 07:17:35 - 07:47:35 14541
The Dalles 07:32:36 -21.1 Dark Up 12.5 162.5 Really Low 07:17:36 - 07:47:36 14533
Maupin 07:32:36 -21.6 Dark Up 12.9 162.5 Really Low 07:17:36 - 07:47:36 14521
Madras/Culver 07:32:38 -22.1 Dark Up 13.4 162.4 Really Low 07:17:38 - 07:47:38 14505
Redmond 07:32:38 -22.5 Dark Up 13.7 162.4 Really Low 07:17:38 - 07:47:38 14494
Sisters 07:32:39 -22.4 Dark Up 13.6 162.0 Really Low 07:17:39 - 07:47:39 14492
Bend 07:32:38 -22.7 Dark Up 13.9 162.2 Really Low 07:17:38 - 07:47:38 14486
Oregon Observatory 07:32:38 -22.8 Dark Up 14.1 162.1 Really Low 07:17:38 - 07:47:38 14480
La Pine/Gilchrist 07:32:39 -23.0 Dark Up 14.2 162.0 Really Low 07:17:39 - 07:47:39 14473
North Lake 07:32:37 -23.5 Dark Up 14.8 162.5 Really Low 07:17:37 - 07:47:37 14464
Paisley 07:32:38 -24.1 Dark Up 15.4 162.8 Really Low 07:17:38 - 07:47:38 14448
Chiloquin 07:32:41 -24.1 Dark Up 15.2 161.7 Really Low 07:17:41 - 07:47:41 14434
Lakeview 07:32:37 -24.6 Dark Up 15.9 162.9 Really Low 07:17:37 - 07:47:37 14432
Klamath Falls 07:32:42 -24.4 Dark Up 15.6 161.7 Really Low 07:17:42 - 07:47:42 14423
Tulelake 07:32:41 -24.7 Dark Up 15.9 161.9 Really Low 07:17:41 - 07:47:41 14416
Cedarville 07:32:38 -25.3 Dark Up 16.6 163.0 Really Low 07:17:38 - 07:47:38 14411
Fall River/Burney 07:32:42 -25.6 Dark Up 16.8 161.9 Really Low 07:17:42 - 07:47:42 14384
Niwot 07:31:49 -26.6 Dark Up 20.0 176.3 Really Low 07:16:49 - 07:46:49 14382
Susanville 07:32:40 -26.3 Dark Up 17.5 162.5 Really Low 07:17:40 - 07:47:40 14367
Gimple 07:32:41 -26.6 Dark Up 17.8 162.3 Really Low 07:17:41 - 07:47:41 14355
Greenville 07:32:42 -26.6 Dark Up 17.7 162.2 Really Low 07:17:42 - 07:47:42 14354
Quincy 07:32:42 -26.8 Dark Up 17.9 162.2 Really Low 07:17:42 - 07:47:42 14346
Portola 07:32:41 -27.0 Dark Up 18.2 162.6 Really Low 07:17:41 - 07:47:41 14345
Reno 07:32:38 -27.3 Dark Up 18.6 163.2 Really Low 07:17:38 - 07:47:38 14339
Carson City 07:32:39 -27.6 Dark Up 18.9 163.1 Really Low 07:17:39 - 07:47:39 14325
Yerington 07:32:37 -27.9 Dark Up 19.2 163.7 Really Low 07:17:37 - 07:47:37 14322
Gardnerville 07:32:39 -27.9 Dark Up 19.2 163.2 Really Low 07:17:39 - 07:47:39 14316
Hawthorne 07:32:35 -28.4 Dark Up 19.8 164.1 Really Low 07:17:35 - 07:47:35 14306
Tonopah 07:32:32 -28.9 Dark Up 20.5 165.3 Low 07:17:32 - 07:47:32 14295
Lee Vining 07:32:38 -28.9 Dark Up 20.2 163.6 Low 07:17:38 - 07:47:38 14280
Bishop 07:32:36 -29.6 Dark Up 21.0 164.2 Low 07:17:36 - 07:47:36 14259
Beatty 07:32:30 -30.1 Dark Up 21.7 165.6 Low 07:17:30 - 07:47:30 14248
Indian Springs 07:32:27 -30.5 Dark Up 22.3 166.6 Low 07:17:27 - 07:47:27 14239
Lone Pine 07:32:35 -30.3 Dark Up 21.8 164.4 Low 07:17:35 - 07:47:35 14228
Henderson 07:32:25 -31.0 Dark Up 22.9 167.1 Low 07:17:25 - 07:47:25 14217
Patrick 07:32:21 -31.7 Dark Up 23.7 168.1 Low 07:17:21 - 07:47:21 14192
Searchlight/Boulder City 07:32:26 -31.6 Dark Up 23.5 167.1 Low 07:17:26 - 07:47:26 14191
Kingman/Dolan Springs 07:32:23 -31.9 Dark Up 23.9 167.9 Low 07:17:23 - 07:47:23 14181
DCO 07:32:20 -32.0 Dark Up 24.1 168.7 Low 07:17:20 - 07:47:20 14180
Laughlin/Bullhead City 07:32:24 -31.9 Dark Up 23.8 167.4 Low 07:17:24 - 07:47:24 14179
Mohave Valley 07:32:25 -32.2 Dark Up 24.1 167.4 Low 07:17:25 - 07:47:25 14166
CPSLO 07:32:46 -31.4 Dark Up 22.4 162.0 Low 07:17:46 - 07:47:46 14152
Lake Havasu City 07:32:25 -32.6 Dark Up 24.5 167.6 Low 07:17:25 - 07:47:25 14148
Parker 07:32:25 -33.0 Dark Up 24.9 167.6 Low 07:17:25 - 07:47:25 14131
Wildwood 07:32:40 -32.8 Dark Up 24.1 163.7 Low 07:17:40 - 07:47:40 14109
Blythe 07:32:26 -33.5 Dark Up 25.4 167.3 Low 07:17:26 - 07:47:26 14105
Idyllwild 07:32:33 -33.3 Dark Up 24.8 165.3 Low 07:17:33 - 07:47:33 14102
Calipatria 07:32:29 -33.9 Dark Up 25.7 166.3 Low 07:17:29 - 07:47:29 14077
Yuma 07:32:27 -34.4 Dark Up 26.2 167.1 Low 07:17:27 - 07:47:27 14059

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 28978, (2020/06/08 07:30UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 19.31  41
34Ups Sco      17:30:45.8 -37:17:46  2.7  9.12  29
Gam1Sgr        18:05:01.2 -29:34:48  4.7  2.02  20
PPM 267505     17:55:08.8 -29:48:41  8.5  0.14  22
28978          17:55:46.2 -29:48:02 15.9        22
Positions are for J2000

Event circumstances last updated at 2018/10/08 19:45:58 UT

Marc W. Buie, Southwest Research Institute

RECON