RECON: TNO occultation with 01KD77

Event between 01KD77 and star GA0680:32087926 with event index number of 194661

Geocentric closest approach at 2019/06/25 09:15:12 UTC

J2000 position of star is 18:47:59.3 -21:32:36
Equinox of date position of star is 18:49:05.6 -21:31:18
Stellar brightness G=14.3, use SENSEUP=64
Star is 82 degrees from the moon. Moon is 50% illuminated.
TNO apparent brightness V=21.2

[RECON map]
TNO is 36.5 AU from the Sun and 35.5 AU from the Earth.
The TNO is moving 23.9 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 378 seconds.
The 1-sigma cross-track error in the shadow position is 2021 km.
The sky-plane scale is 25740.1 km/arcsec.

The TNO has an absolute magnitude Hv=5.6
Diameter=461.3 km assuming a 5% albedo -- 19.3 sec chord
Diameter=188.3 km assuming a 30% albedo -- 7.9 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 01KD77, (2019/06/25 09:15UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.3 -26:28:25  0.9 31.93 113
Nunki          18:56:28.3 -26:16:15  2.0  5.04  81
30 Sgr         18:52:00.7 -22:08:18  6.3  0.91  82
PPM 268854     18:46:28.4 -20:58:49  6.6  0.83  83
PPM 268904     18:48:31.4 -21:06:56  9.8  0.43  82
01KD77         18:49:09.3 -21:31:14 14.3        82
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 2.4 sigma about the mid-time.
The median site spacing is 11.2 km RECON observability=0.9 and success probability=0.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 09:15:07 -15.2 AT Up 18.3 190.2 Really Low 09:00:07 - 09:30:07 8006
Oroville 09:15:06 -15.8 AT Up 18.9 190.4 Really Low 09:00:06 - 09:30:06 7981
Tonasket 09:15:06 -16.0 AT Up 19.1 190.4 Really Low 09:00:06 - 09:30:06 7972
Okanogan 09:15:06 -16.3 AT Up 19.5 190.3 Really Low 09:00:06 - 09:30:06 7961
Brewster 09:15:07 -16.6 AT Up 19.8 190.1 Really Low 09:00:07 - 09:30:07 7952
Manson/Chelan 09:15:08 -16.9 AT Up 20.0 189.8 Low 09:00:08 - 09:30:08 7948
Entiat 09:15:08 -17.1 AT Up 20.2 189.7 Low 09:00:08 - 09:30:08 7939
Wenatchee 09:15:08 -17.4 AT Up 20.5 189.6 Low 09:00:08 - 09:30:08 7930
Ellensburg 09:15:09 -17.8 AT Up 20.9 189.4 Low 09:00:09 - 09:30:09 7915
Yakima 09:15:09 -18.2 Dark Up 21.3 189.4 Low 09:00:09 - 09:30:09 7898
Toppenish/White Swan 09:15:08 -18.4 Dark Up 21.5 189.6 Low 09:00:08 - 09:30:08 7887
Goldendale 09:15:09 -19.0 Dark Up 22.1 189.2 Low 09:00:09 - 09:30:09 7867
Pasco 09:15:05 -18.3 Dark Up 21.5 190.9 Low 09:00:05 - 09:30:05 7867
The Dalles 09:15:11 -19.3 Dark Up 22.4 188.9 Low 09:00:11 - 09:30:11 7862
George/Umatilla 09:15:05 -18.6 Dark Up 21.8 190.7 Low 09:00:05 - 09:30:05 7855
PNWRO 09:15:04 -18.4 Dark Up 21.7 191.1 Low 09:00:04 - 09:30:04 7854
Maupin 09:15:10 -19.7 Dark Up 22.8 189.0 Low 09:00:10 - 09:30:10 7842
Madras/Culver 09:15:10 -20.2 Dark Up 23.3 189.0 Low 09:00:10 - 09:30:10 7817
Sisters 09:15:12 -20.6 Dark Up 23.7 188.6 Low 09:00:12 - 09:30:12 7807
Redmond 09:15:09 -20.6 Dark Up 23.7 189.0 Low 09:00:09 - 09:30:09 7801
Bend 09:15:10 -20.8 Dark Up 23.9 188.9 Low 09:00:10 - 09:30:10 7793
Oregon Observatory 09:15:11 -21.0 Dark Up 24.1 188.7 Low 09:00:11 - 09:30:11 7786
La Pine/Gilchrist 09:15:10 -21.2 Dark Up 24.3 188.7 Low 09:00:10 - 09:30:10 7777
North Lake 09:15:09 -21.5 Dark Up 24.7 189.3 Low 09:00:09 - 09:30:09 7749
Chiloquin 09:15:12 -22.4 Dark Up 25.4 188.4 Low 09:00:12 - 09:30:12 7727
Paisley 09:15:07 -22.0 Dark Up 25.2 189.7 Low 09:00:07 - 09:30:07 7718
Klamath Falls 09:15:11 -22.7 Dark Up 25.8 188.5 Low 09:00:11 - 09:30:11 7709
Tulelake 09:15:10 -22.9 Dark Up 26.0 188.8 Low 09:00:10 - 09:30:10 7692
Lakeview 09:15:06 -22.4 Dark Up 25.6 190.0 Low 09:00:06 - 09:30:06 7690
Cedarville 09:15:06 -23.0 Dark Up 26.3 190.2 Low 09:00:06 - 09:30:06 7655
Fall River/Burney 09:15:10 -23.7 Dark Up 26.9 189.0 Low 09:00:10 - 09:30:10 7644
Susanville 09:15:07 -24.2 Dark Up 27.4 189.8 Low 09:00:07 - 09:30:07 7602
Greenville 09:15:08 -24.5 Dark Up 27.7 189.5 Low 09:00:08 - 09:30:08 7591
Gimple 09:15:08 -24.5 Dark Up 27.7 189.6 Low 09:00:08 - 09:30:08 7590
Quincy 09:15:08 -24.7 Dark Up 27.9 189.6 Low 09:00:08 - 09:30:08 7580
Portola 09:15:06 -24.7 Dark Up 28.0 190.1 Low 09:00:06 - 09:30:06 7567
Reno 09:15:03 -24.8 Dark Up 28.2 190.7 Low 09:00:03 - 09:30:03 7545
Carson City 09:15:04 -25.1 Dark Up 28.5 190.8 Low 09:00:04 - 09:30:04 7525
Gardnerville 09:15:04 -25.3 Dark Up 28.8 190.9 Low 09:00:04 - 09:30:04 7510
Yerington 09:15:02 -25.1 Dark Up 28.6 191.5 Low 09:00:02 - 09:30:02 7506
Hawthorne 09:15:00 -25.4 Dark Up 29.0 192.1 Low 09:00:00 - 09:30:00 7472
Lee Vining 09:15:01 -26.1 Dark Up 29.6 191.6 Low 09:00:01 - 09:30:01 7447
Tonopah 09:14:55 -25.5 Dark Up 29.2 193.6 Low 08:59:55 - 09:29:55 7426
Bishop 09:14:59 -26.5 Dark Up 30.1 192.5 Up 08:59:59 - 09:29:59 7402
Lone Pine 09:14:57 -27.1 Dark Up 30.8 192.9 Up 08:59:57 - 09:29:57 7352
Beatty 09:14:53 -26.4 Dark Up 30.2 194.2 Up 08:59:53 - 09:29:53 7351
Niwot 09:14:16 -19.5 Dark Up 24.2 205.2 Low 08:59:16 - 09:29:16 7341
Indian Springs 09:14:48 -26.4 Dark Up 30.3 195.4 Up 08:59:48 - 09:29:48 7316
CPSLO 09:15:06 -29.0 Dark Up 32.5 190.3 Up 09:00:06 - 09:30:06 7308
Henderson 09:14:46 -26.7 Dark Up 30.7 196.2 Up 08:59:46 - 09:29:46 7272
Searchlight/Boulder City 09:14:46 -27.2 Dark Up 31.2 196.4 Up 08:59:46 - 09:29:46 7236
Patrick 09:14:42 -26.9 Dark Up 31.0 197.5 Up 08:59:42 - 09:29:42 7215
Laughlin/Bullhead City 09:14:44 -27.4 Dark Up 31.5 196.8 Up 08:59:44 - 09:29:44 7211
Kingman/Dolan Springs 09:14:42 -27.2 Dark Up 31.3 197.3 Up 08:59:42 - 09:29:42 7204
Wildwood 09:14:59 -29.6 Dark Up 33.3 192.7 Up 08:59:59 - 09:29:59 7204
Mohave Valley 09:14:44 -27.6 Dark Up 31.7 196.8 Up 08:59:44 - 09:29:44 7194
DCO 09:14:39 -26.9 Dark Up 31.2 198.2 Up 08:59:39 - 09:29:39 7184
Lake Havasu City 09:14:43 -27.9 Dark Up 32.0 197.2 Up 08:59:43 - 09:29:43 7165
Idyllwild 09:14:51 -29.4 Dark Up 33.3 194.8 Up 08:59:51 - 09:29:51 7153
Parker 09:14:43 -28.2 Dark Up 32.4 197.2 Up 08:59:43 - 09:29:43 7142
Blythe 09:14:44 -28.8 Dark Up 32.9 197.0 Up 08:59:44 - 09:29:44 7112
Calipatria 09:14:47 -29.5 Dark Up 33.6 196.1 Up 08:59:47 - 09:29:47 7095
Yuma 09:14:43 -29.6 Dark Up 33.8 197.2 Up 08:59:43 - 09:29:43 7052

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 01KD77, (2019/06/25 09:15UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 31.93 113
Nunki          18:55:15.9 -26:17:49  2.0  5.04  81
30 Sgr         18:50:50.5 -22:09:44  6.3  0.91  82
PPM 268854     18:45:18.7 -21:00:07  6.6  0.83  83
PPM 268904     18:47:21.6 -21:08:18  9.8  0.43  82
01KD77         18:47:59.3 -21:32:36 14.3        82
Positions are for J2000

Event circumstances last updated at 2018/06/12 02:20:15 UT

Marc W. Buie, Southwest Research Institute

RECON