RECON: TNO occultation with 95HM5

Event between 95HM5 and star GA0720:06178411 with event index number of 1118812

Geocentric closest approach at 2021/04/12 11:35:46 UTC

J2000 position of star is 16:28:11.0 -17:26:12
Equinox of date position of star is 16:29:23.9 -17:28:55
Stellar brightness G=16.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 139 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 29.6 AU from the Sun and 28.9 AU from the Earth.
The TNO is moving 14.4 km/sec on the sky relative to the star, or, 2.5 arcsec/hr.
The 1-sigma error in the time of the event is 845 seconds.
The 1-sigma cross-track error in the shadow position is 3484 km.
The sky-plane scale is 20930.2 km/arcsec.

The TNO has an absolute magnitude Hv=8.1
Diameter=145.2 km assuming a 5% albedo -- 10.1 sec chord
Diameter=59.3 km assuming a 30% albedo -- 4.1 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 95HM5, (2021/04/12 11:36UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:42.9 -26:28:39  0.9  9.00 136
8Bet1Sco       16:06:40.7 -19:51:43  2.6  5.89 144
7Chi Oph       16:28:15.6 -18:30:10  4.1  1.06 139
PPM 231727     16:29:14.1 -17:53:26  8.4  0.41 139
PPM 231725     16:29:06.5 -17:34:37  9.4  0.12 139
95HM5          16:29:24.7 -17:28:57 16.2       139
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 1.1 sigma about the mid-time.
The median site spacing is 13.8 km RECON observability=0.9 and success probability=2.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 11:36:57 -14.3 AT Down 21.9 189.0 Low 11:21:57 - 11:51:57 6964
Kelowna 11:36:58 -14.6 AT Down 22.3 188.9 Low 11:21:58 - 11:51:58 6947
Peachland 11:37:00 -14.8 AT Down 22.4 188.6 Low 11:22:00 - 11:52:00 6938
Summerland 11:36:58 -14.8 AT Down 22.5 188.7 Low 11:21:58 - 11:51:58 6933
Penticton 11:36:58 -14.8 AT Down 22.6 188.8 Low 11:21:58 - 11:51:58 6933
Oliver 11:36:58 -15.0 AT Down 23.0 188.8 Low 11:21:58 - 11:51:58 6919
Anarchist Mountain Observatory 11:36:56 -15.0 AT Down 23.1 189.0 Low 11:21:56 - 11:51:56 6916
Tonasket 11:36:55 -15.2 AT Down 23.4 189.0 Low 11:21:55 - 11:51:55 6902
Okanogan 11:36:56 -15.4 AT Down 23.8 188.9 Low 11:21:56 - 11:51:56 6886
Brewster 11:36:58 -15.7 AT Down 24.0 188.7 Low 11:21:58 - 11:51:58 6871
Manson/Chelan 11:36:57 -16.0 AT Down 24.3 188.3 Low 11:21:57 - 11:51:57 6856
Wenatchee 11:36:57 -16.4 AT Down 24.8 188.2 Low 11:21:57 - 11:51:57 6833
Victoria 11:37:14 -17.4 AT Down 23.9 184.9 Low 11:22:14 - 11:52:14 6824
Ellensburg 11:36:58 -16.7 AT Down 25.2 188.0 Low 11:21:58 - 11:51:58 6811
Pasco 11:36:51 -16.3 AT Down 25.8 189.5 Low 11:21:51 - 11:51:51 6804
PNWRO 11:36:49 -16.4 AT Down 26.0 189.7 Low 11:21:49 - 11:51:49 6797
Yakima 11:36:58 -17.0 AT Down 25.6 188.0 Low 11:21:58 - 11:51:58 6793
Toppenish/White Swan 11:36:57 -17.0 AT Down 25.8 188.2 Low 11:21:57 - 11:51:57 6787
Goldendale 11:36:57 -17.6 AT Down 26.4 187.7 Low 11:21:57 - 11:51:57 6754
The Dalles 11:37:00 -17.9 AT Down 26.7 187.4 Low 11:22:00 - 11:52:00 6737
Dunrhomin 11:35:23 -10.2 NT Down 28.6 204.6 Low 11:20:23 - 11:50:23 6732
Maupin 11:36:58 -18.1 Dark Down 27.1 187.5 Low 11:21:58 - 11:51:58 6720
Redmond 11:36:57 -18.6 Dark Down 28.0 187.5 Low 11:21:57 - 11:51:57 6675
Sisters 11:37:00 -18.8 Dark Down 28.0 187.1 Low 11:22:00 - 11:52:00 6669
Bend 11:36:57 -18.8 Dark Down 28.2 187.3 Low 11:21:57 - 11:51:57 6662
Oregon Observatory 11:36:56 -19.0 Dark Down 28.4 187.2 Low 11:21:56 - 11:51:56 6652
La Pine/Gilchrist 11:36:58 -19.2 Dark Down 28.6 187.2 Low 11:21:58 - 11:51:58 6640
North Lake 11:36:54 -19.0 Dark Down 29.0 187.8 Low 11:21:54 - 11:51:54 6630
Paisley 11:36:51 -19.1 Dark Down 29.5 188.2 Low 11:21:51 - 11:51:51 6610
Lakeview 11:36:49 -19.3 Dark Down 30.0 188.5 Low 11:21:49 - 11:51:49 6587
Klamath Falls 11:36:56 -20.1 Dark Down 30.1 187.0 Up 11:21:56 - 11:51:56 6561
Cedarville 11:36:47 -19.5 Dark Down 30.6 188.7 Up 11:21:47 - 11:51:47 6557
Fall River/Burney 11:36:54 -20.5 Dark Down 31.2 187.4 Up 11:21:54 - 11:51:54 6506
Susanville 11:36:49 -20.4 Dark Down 31.7 188.3 Up 11:21:49 - 11:51:49 6487
Gimple 11:36:49 -20.7 Dark Down 32.0 188.1 Up 11:21:49 - 11:51:49 6468
Greenville 11:36:49 -20.8 Dark Down 32.0 188.0 Up 11:21:49 - 11:51:49 6466
Portola 11:36:46 -20.6 Dark Down 32.3 188.6 Up 11:21:46 - 11:51:46 6458
Reno 11:36:41 -20.4 Dark Down 32.5 189.3 Up 11:21:41 - 11:51:41 6456
Quincy 11:36:49 -20.9 Dark Down 32.2 188.0 Up 11:21:49 - 11:51:49 6455
Yerington 11:36:37 -20.2 Dark Down 33.0 190.1 Up 11:21:37 - 11:51:37 6438
Carson City 11:36:42 -20.5 Dark Down 32.9 189.4 Up 11:21:42 - 11:51:42 6437
Gardnerville 11:36:39 -20.6 Dark Down 33.1 189.4 Up 11:21:39 - 11:51:39 6424
Tonopah 11:36:23 -19.4 Dark Down 33.6 192.3 Up 11:21:23 - 11:51:23 6423
Hawthorne 11:36:34 -20.1 Dark Down 33.4 190.7 Up 11:21:34 - 11:51:34 6422
Lee Vining 11:36:35 -20.7 Dark Down 34.0 190.2 Up 11:21:35 - 11:51:35 6381
Indian Springs 11:36:13 -19.0 Dark Down 34.8 194.2 Up 11:21:13 - 11:51:13 6365
Beatty 11:36:19 -19.6 Dark Down 34.6 193.0 Up 11:21:19 - 11:51:19 6364
Bishop 11:36:28 -20.5 Dark Down 34.5 191.1 Up 11:21:28 - 11:51:28 6360
Henderson 11:36:07 -18.8 Dark Down 35.1 195.1 Up 11:21:07 - 11:51:07 6346
Patrick 11:35:58 -18.3 Dark Down 35.5 196.4 Up 11:20:58 - 11:50:58 6329
Kingman/Dolan Springs 11:36:00 -18.5 Dark Down 35.8 196.3 Up 11:21:00 - 11:51:00 6312
Laughlin/Bullhead City 11:36:04 -18.9 Dark Down 35.9 195.7 Up 11:21:04 - 11:51:04 6300
Mohave Valley 11:36:02 -19.0 Dark Down 36.2 195.8 Up 11:21:02 - 11:51:02 6283
Lake Havasu City 11:36:01 -19.0 Dark Down 36.5 196.1 Up 11:21:01 - 11:51:01 6263
George/Scottsdale 11:35:44 -17.6 AT Down 36.6 199.0 Up 11:20:44 - 11:50:44 6259
Parker 11:35:59 -19.2 Dark Down 36.8 196.2 Up 11:20:59 - 11:50:59 6242
Blythe 11:35:59 -19.6 Dark Down 37.4 196.0 Up 11:20:59 - 11:50:59 6203
CPSLO 11:36:39 -23.1 Dark Down 36.8 188.8 Up 11:21:39 - 11:51:39 6187
Idyllwild 11:36:13 -21.1 Dark Down 37.7 193.5 Up 11:21:13 - 11:51:13 6171
Wildwood 11:36:24 -22.3 Dark Down 37.7 191.3 Up 11:21:24 - 11:51:24 6154
Calipatria 11:36:04 -20.5 Dark Down 38.1 195.0 Up 11:21:04 - 11:51:04 6153
Yuma 11:35:57 -20.0 Dark Down 38.3 196.1 Up 11:20:57 - 11:50:57 6143

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 95HM5, (2021/04/12 11:36UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  9.00 136
8Bet1Sco       16:05:26.2 -19:48:20  2.6  5.89 144
7Chi Oph       16:27:01.4 -18:27:23  4.1  1.06 139
PPM 231727     16:28:00.3 -17:50:40  8.4  0.41 139
PPM 231725     16:27:52.8 -17:31:51  9.4  0.12 139
95HM5          16:28:11.0 -17:26:12 16.2       139
Positions are for J2000

Event circumstances last updated at 2021/01/20 20:11:34 UT

Marc W. Buie, Southwest Research Institute

RECON