RECON: TNO occultation with 10JJ124

Event between 10JJ124 and star GA0720:22291756 with event index number of 288441

Geocentric closest approach at 2020/07/01 08:26:29 UTC

J2000 position of star is 18:26:00.0 -17:14:18
Equinox of date position of star is 18:27:05.3 -17:13:35
Stellar brightness G=16.3, use SENSEUP=128
Star is 46 degrees from the moon. Moon is 82% illuminated.
TNO apparent brightness V=20.5

[RECON map]
TNO is 25.0 AU from the Sun and 24.0 AU from the Earth.
The TNO is moving 23.6 km/sec on the sky relative to the star, or, 4.9 arcsec/hr.
The 1-sigma error in the time of the event is 263 seconds.
The 1-sigma cross-track error in the shadow position is 5339 km.
The sky-plane scale is 17414.8 km/arcsec.

The TNO has an absolute magnitude Hv=6.6
Diameter=299.2 km assuming a 5% albedo -- 12.1 sec chord
Diameter=122.2 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is CENTAURS
 
 
 
 
 
 

Star training set for 10JJ124, (2020/07/01 08:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:40.1 -26:28:33  0.9 28.50  21
Nunki          18:56:32.1 -26:16:10  2.0 11.32  53
PPM 234652     18:32:38.4 -18:23:13  5.0  1.74  47
PPM 234536     18:27:51.7 -17:38:29  8.3  0.45  46
PPM 234522     18:26:57.9 -17:03:48  9.4  0.17  46
10JJ124        18:27:11.4 -17:13:31 16.3        46
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 3.4 sigma about the mid-time.
The median site spacing is 13.4 km RECON observability=1.0 and success probability=2.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Rutland 08:26:33 -16.8 AT Up 22.2 190.9 Low 08:11:33 - 08:41:33 9918
Penticton 08:26:33 -17.2 AT Up 22.6 190.8 Low 08:11:33 - 08:41:33 9902
Okanagan Falls 08:26:33 -17.4 AT Up 22.8 190.8 Low 08:11:33 - 08:41:33 9894
Southern Okanagan 08:26:32 -17.6 AT Up 22.9 190.8 Low 08:11:32 - 08:41:32 9887
Oroville 08:26:32 -17.8 AT Up 23.2 191.0 Low 08:11:32 - 08:41:32 9877
Tonasket 08:26:32 -18.0 Dark Up 23.4 191.0 Low 08:11:32 - 08:41:32 9867
Okanogan 08:26:32 -18.4 Dark Up 23.7 190.9 Low 08:11:32 - 08:41:32 9852
Brewster 08:26:32 -18.6 Dark Up 24.0 190.7 Low 08:11:32 - 08:41:32 9839
Manson/Chelan 08:26:34 -18.9 Dark Up 24.3 190.3 Low 08:11:34 - 08:41:34 9827
Entiat 08:26:33 -19.1 Dark Up 24.5 190.3 Low 08:11:33 - 08:41:33 9816
Wenatchee 08:26:33 -19.4 Dark Up 24.8 190.2 Low 08:11:33 - 08:41:33 9804
Ellensburg 08:26:34 -19.8 Dark Up 25.2 190.0 Low 08:11:34 - 08:41:34 9784
Yakima 08:26:34 -20.2 Dark Up 25.6 190.0 Low 08:11:34 - 08:41:34 9765
Pasco 08:26:28 -20.4 Dark Up 25.8 191.5 Low 08:11:28 - 08:41:28 9758
Toppenish/White Swan 08:26:32 -20.4 Dark Up 25.8 190.2 Low 08:11:32 - 08:41:32 9755
PNWRO 08:26:28 -20.7 Dark Up 26.0 191.8 Low 08:11:28 - 08:41:28 9748
George/Umatilla 08:26:29 -20.8 Dark Up 26.1 191.3 Low 08:11:29 - 08:41:29 9741
Goldendale 08:26:34 -21.0 Dark Up 26.4 189.8 Low 08:11:34 - 08:41:34 9726
The Dalles 08:26:35 -21.2 Dark Up 26.7 189.4 Low 08:11:35 - 08:41:35 9712
Maupin 08:26:34 -21.6 Dark Up 27.1 189.6 Low 08:11:34 - 08:41:34 9693
Madras/Culver 08:26:34 -22.2 Dark Up 27.6 189.6 Low 08:11:34 - 08:41:34 9665
Redmond 08:26:34 -22.5 Dark Up 28.0 189.5 Low 08:11:34 - 08:41:34 9646
Sisters 08:26:35 -22.5 Dark Up 28.0 189.1 Low 08:11:35 - 08:41:35 9644
Bend 08:26:34 -22.8 Dark Up 28.2 189.4 Low 08:11:34 - 08:41:34 9634
Oregon Observatory 08:26:34 -22.9 Dark Up 28.4 189.3 Low 08:11:34 - 08:41:34 9624
La Pine/Gilchrist 08:26:34 -23.1 Dark Up 28.6 189.2 Low 08:11:34 - 08:41:34 9613
North Lake 08:26:32 -23.5 Dark Up 28.9 189.9 Low 08:11:32 - 08:41:32 9595
Paisley 08:26:30 -24.1 Dark Up 29.4 190.4 Low 08:11:30 - 08:41:30 9568
Chiloquin 08:26:34 -24.3 Dark Up 29.7 189.0 Low 08:11:34 - 08:41:34 9551
Lakeview 08:26:29 -24.6 Dark Up 29.9 190.6 Low 08:11:29 - 08:41:29 9542
Klamath Falls 08:26:34 -24.6 Dark Up 30.1 189.1 Up 08:11:34 - 08:41:34 9533
Tulelake 08:26:33 -24.9 Dark Up 30.3 189.4 Up 08:11:33 - 08:41:33 9521
Cedarville 08:26:28 -25.2 Dark Up 30.5 190.9 Up 08:11:28 - 08:41:28 9507
Niwot 08:25:37 -24.1 Dark Up 28.2 206.8 Low 08:10:37 - 08:40:37 9488
Fall River/Burney 08:26:32 -25.8 Dark Up 31.2 189.6 Up 08:11:32 - 08:41:32 9471
Susanville 08:26:29 -26.4 Dark Up 31.7 190.5 Up 08:11:29 - 08:41:29 9440
Gimple 08:26:30 -26.6 Dark Up 32.0 190.3 Up 08:11:30 - 08:41:30 9423
Greenville 08:26:29 -26.6 Dark Up 32.0 190.2 Up 08:11:29 - 08:41:29 9422
Quincy 08:26:29 -26.8 Dark Up 32.2 190.2 Up 08:11:29 - 08:41:29 9410
Portola 08:26:28 -26.9 Dark Up 32.3 190.7 Up 08:11:28 - 08:41:28 9407
Reno 08:26:25 -27.2 Dark Up 32.4 191.5 Up 08:11:25 - 08:41:25 9396
Carson City 08:26:25 -27.5 Dark Up 32.8 191.6 Up 08:11:25 - 08:41:25 9375
Yerington 08:26:22 -27.7 Dark Up 32.9 192.3 Up 08:11:22 - 08:41:22 9368
Gardnerville 08:26:24 -27.8 Dark Up 33.0 191.6 Up 08:11:24 - 08:41:24 9361
Hawthorne 08:26:20 -28.1 Dark Up 33.2 192.9 Up 08:11:20 - 08:41:20 9344
Tonopah 08:26:14 -28.4 Dark Up 33.4 194.6 Up 08:11:14 - 08:41:14 9325
Lee Vining 08:26:21 -28.7 Dark Up 33.9 192.5 Up 08:11:21 - 08:41:21 9306
Bishop 08:26:18 -29.2 Dark Up 34.3 193.4 Up 08:11:18 - 08:41:18 9274
Beatty 08:26:12 -29.5 Dark Up 34.5 195.3 Up 08:11:12 - 08:41:12 9256
Indian Springs 08:26:07 -29.6 Dark Up 34.5 196.5 Up 08:11:07 - 08:41:07 9242
Lone Pine 08:26:16 -29.9 Dark Up 35.0 193.9 Up 08:11:16 - 08:41:16 9229
Henderson 08:26:04 -30.1 Dark Up 34.9 197.4 Up 08:11:04 - 08:41:04 9212
Patrick 08:25:59 -30.5 Dark Up 35.2 198.8 Up 08:10:59 - 08:40:59 9178
Searchlight/Boulder City 08:26:03 -30.6 Dark Up 35.4 197.6 Up 08:11:03 - 08:41:03 9175
Kingman/Dolan Springs 08:26:00 -30.7 Dark Up 35.5 198.6 Up 08:11:00 - 08:41:00 9162
DCO 08:25:57 -30.7 Dark Up 35.3 199.6 Up 08:10:57 - 08:40:57 9161
Laughlin/Bullhead City 08:26:03 -30.9 Dark Up 35.6 198.1 Up 08:11:03 - 08:41:03 9158
Mohave Valley 08:26:02 -31.1 Dark Up 35.9 198.1 Up 08:11:02 - 08:41:02 9140
CPSLO 08:26:25 -31.4 Dark Up 36.7 191.1 Up 08:11:25 - 08:41:25 9125
Lake Havasu City 08:26:00 -31.5 Dark Up 36.2 198.5 Up 08:11:00 - 08:41:00 9115
Parker 08:26:00 -31.8 Dark Up 36.5 198.6 Up 08:11:00 - 08:41:00 9092
Wildwood 08:26:16 -32.5 Dark Up 37.5 193.7 Up 08:11:16 - 08:41:16 9061
Blythe 08:26:01 -32.4 Dark Up 37.1 198.4 Up 08:11:01 - 08:41:01 9055
Idyllwild 08:26:08 -32.6 Dark Up 37.5 195.9 Up 08:11:08 - 08:41:08 9050
Calipatria 08:26:03 -33.0 Dark Up 37.8 197.4 Up 08:11:03 - 08:41:03 9016
Yuma 08:25:59 -33.3 Dark Up 38.0 198.6 Up 08:10:59 - 08:40:59 8991

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 10JJ124, (2020/07/01 08:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 28.50  21
Nunki          18:55:15.9 -26:17:49  2.0 11.32  53
PPM 234652     18:31:26.3 -18:24:10  5.0  1.74  47
PPM 234536     18:26:40.0 -17:39:18  8.3  0.45  46
PPM 234522     18:25:46.5 -17:04:36  9.4  0.17  46
10JJ124        18:26:00.0 -17:14:18 16.3        46
Positions are for J2000

Event circumstances last updated at 2018/09/21 18:01:24 UT

Marc W. Buie, Southwest Research Institute

RECON