RECON: TNO occultation with 07LG38

Event between 07LG38 and star GA0920:06627412 with event index number of 263628

Geocentric closest approach at 2020/05/11 09:44:47 UTC

J2000 position of star is 18:10:51.3 +02:27:43
Equinox of date position of star is 18:11:52.3 +02:28:04
Stellar brightness G=15.6, use SENSEUP=128
Star is 29 degrees from the moon. Moon is 81% illuminated.
TNO apparent brightness V=25.6

[RECON map]
TNO is 35.4 AU from the Sun and 34.8 AU from the Earth.
The TNO is moving 17.7 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 197 seconds.
The 1-sigma cross-track error in the shadow position is 1889 km.
The sky-plane scale is 25206.3 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=132.4 km assuming a 5% albedo -- 3.4 sec chord
Diameter=54.1 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is 5:2EEE
 
 
 
 
 
 

Star training set for 07LG38, (2020/05/11 09:45UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:39.5 -26:28:32  0.9 37.88  34
60Bet Oph      17:44:28.8 +04:33:37  2.8  7.15  34
PPM 165298     18:10:55.2 +03:07:26  6.1  0.70  30
PPM 165305     18:11:09.8 +02:23:10  8.3  0.20  29
PPM 165315     18:11:24.6 +02:32:06  8.7  0.14  29
07LG38         18:11:52.8 +02:28:04 15.6        29
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 4.6 sigma about the mid-time.
The median site spacing is 19.7 km RECON observability=1.0 and success probability=0.2%
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 09:47:18 -17.2 AT Up 40.4 159.4 Up 09:32:18 - 10:02:18 8815
Kelowna 09:47:17 -17.6 AT Up 40.8 159.1 Up 09:32:17 - 10:02:17 8781
Peachland 09:47:19 -17.8 AT Up 40.8 158.7 Up 09:32:19 - 10:02:19 8765
Summerland 09:47:20 -17.9 AT Up 41.0 158.7 Up 09:32:20 - 10:02:20 8756
Penticton 09:47:19 -18.0 AT Up 41.0 158.9 Up 09:32:19 - 10:02:19 8753
Oliver 09:47:20 -18.3 Dark Up 41.4 158.8 Up 09:32:20 - 10:02:20 8725
Anarchist Mountain Observatory 09:47:18 -18.4 Dark Up 41.6 158.9 Up 09:32:18 - 10:02:18 8717
Tonasket 09:47:18 -18.6 Dark Up 41.8 158.7 Up 09:32:18 - 10:02:18 8690
Okanogan 09:47:18 -19.0 Dark Up 42.1 158.4 Up 09:32:18 - 10:02:18 8659
Brewster 09:47:20 -19.3 Dark Up 42.3 158.1 Up 09:32:20 - 10:02:20 8633
Manson/Chelan 09:47:21 -19.6 Dark Up 42.4 157.5 Up 09:32:21 - 10:02:21 8607
Entiat 09:47:20 -19.8 Dark Up 42.6 157.4 Up 09:32:20 - 10:02:20 8587
Victoria 09:47:27 -20.0 Dark Up 41.0 153.6 Up 09:32:27 - 10:02:27 8582
Wenatchee 09:47:23 -20.1 Dark Up 42.8 157.2 Up 09:32:23 - 10:02:23 8564
Ellensburg 09:47:23 -20.5 Dark Up 43.1 156.7 Up 09:32:23 - 10:02:23 8525
Pasco 09:47:16 -20.7 Dark Up 44.2 158.3 Up 09:32:16 - 10:02:16 8499
Yakima 09:47:23 -20.9 Dark Up 43.5 156.6 Up 09:32:23 - 10:02:23 8491
PNWRO 09:47:16 -20.8 Dark Up 44.5 158.5 Up 09:32:16 - 10:02:16 8484
Toppenish/White Swan 09:47:21 -21.0 Dark Up 43.8 156.7 Up 09:32:21 - 10:02:21 8477
Goldendale 09:47:22 -21.6 Dark Up 44.1 155.9 Up 09:32:22 - 10:02:22 8420
The Dalles 09:47:22 -21.9 Dark Up 44.2 155.3 Up 09:32:22 - 10:02:22 8392
Niwot 09:46:11 -19.8 Dark Up 52.3 177.2 Up 09:31:11 - 10:01:11 8374
SwRI 09:46:11 -19.9 Dark Up 52.4 177.1 Up 09:31:11 - 10:01:11 8362
Maupin 09:47:24 -22.3 Dark Up 44.7 155.3 Up 09:32:24 - 10:02:24 8359
Redmond 09:47:25 -23.1 Dark Up 45.5 154.8 Up 09:32:25 - 10:02:25 8280
Sisters 09:47:25 -23.2 Dark Up 45.3 154.3 Up 09:32:25 - 10:02:25 8272
Bend 09:47:24 -23.3 Dark Up 45.6 154.5 Up 09:32:24 - 10:02:24 8258
Oregon Observatory 09:47:25 -23.5 Dark Up 45.7 154.3 Up 09:32:25 - 10:02:25 8240
La Pine/Gilchrist 09:47:24 -23.7 Dark Up 45.9 154.1 Up 09:32:24 - 10:02:24 8221
North Lake 09:47:22 -23.9 Dark Up 46.5 154.7 Up 09:32:22 - 10:02:22 8199
Paisley 09:47:22 -24.3 Dark Up 47.1 155.0 Up 09:32:22 - 10:02:22 8160
Lakeview 09:47:19 -24.7 Dark Up 47.6 155.0 Up 09:32:19 - 10:02:19 8121
Klamath Falls 09:47:24 -25.1 Dark Up 47.1 153.0 Up 09:32:24 - 10:02:24 8087
Cedarville 09:47:18 -25.2 Dark Up 48.2 154.9 Up 09:32:18 - 10:02:18 8068
Fall River/Burney 09:47:22 -26.0 Dark Up 48.3 153.0 Up 09:32:22 - 10:02:22 7992
Susanville 09:47:19 -26.3 Dark Up 49.1 153.7 Up 09:32:19 - 10:02:19 7956
Gimple 09:47:20 -26.7 Dark Up 49.3 153.2 Up 09:32:20 - 10:02:20 7926
Greenville 09:47:21 -26.7 Dark Up 49.2 153.1 Up 09:32:21 - 10:02:21 7923
Portola 09:47:18 -26.8 Dark Up 49.7 153.6 Up 09:32:18 - 10:02:18 7907
Quincy 09:47:20 -26.9 Dark Up 49.4 153.0 Up 09:32:20 - 10:02:20 7905
Reno 09:47:15 -26.8 Dark Up 50.1 154.4 Up 09:32:15 - 10:02:15 7902
Yerington 09:47:12 -27.0 Dark Up 50.9 155.1 Up 09:32:12 - 10:02:12 7870
Carson City 09:47:15 -27.1 Dark Up 50.5 154.3 Up 09:32:15 - 10:02:15 7870
Gardnerville 09:47:15 -27.3 Dark Up 50.7 154.2 Up 09:32:15 - 10:02:15 7849
Hawthorne 09:47:09 -27.2 Dark Up 51.4 155.6 Up 09:32:09 - 10:02:09 7843
Tonopah 09:47:02 -27.0 Dark Up 52.3 157.5 Up 09:32:02 - 10:02:02 7842
Lee Vining 09:47:11 -27.9 Dark Up 51.8 154.6 Up 09:32:11 - 10:02:11 7778
Indian Springs 09:46:53 -27.6 Dark Up 54.1 159.2 Up 09:31:53 - 10:01:53 7752
Beatty 09:47:00 -27.8 Dark Up 53.5 157.7 Up 09:32:00 - 10:02:00 7750
Bishop 09:47:07 -28.1 Dark Up 52.6 155.4 Up 09:32:07 - 10:02:07 7744
Henderson 09:46:49 -27.7 Dark Up 54.8 160.1 Up 09:31:49 - 10:01:49 7724
Patrick 09:46:45 -27.7 Dark Up 55.7 161.6 Up 09:31:45 - 10:01:45 7701
DCO 09:46:40 -27.6 Dark Up 56.2 162.7 Up 09:31:40 - 10:01:40 7695
Kingman/Dolan Springs 09:46:44 -28.0 Dark Up 55.9 161.2 Up 09:31:44 - 10:01:44 7675
Searchlight/Boulder City 09:46:49 -28.2 Dark Up 55.4 159.9 Up 09:31:49 - 10:01:49 7674
Laughlin/Bullhead City 09:46:47 -28.2 Dark Up 55.8 160.3 Up 09:31:47 - 10:01:47 7656
Mohave Valley 09:46:46 -28.5 Dark Up 56.0 160.2 Up 09:31:46 - 10:01:46 7631
George/Scottsdale 09:46:32 -28.1 Dark Up 57.8 164.3 Up 09:31:32 - 10:01:32 7607
Lake Havasu City 09:46:46 -28.7 Dark Up 56.5 160.4 Up 09:31:46 - 10:01:46 7602
Parker 09:46:44 -28.9 Dark Up 56.8 160.2 Up 09:31:44 - 10:01:44 7571
Blythe 09:46:45 -29.5 Dark Up 57.2 159.5 Up 09:31:45 - 10:01:45 7513
CPSLO 09:47:15 -30.8 Dark Up 53.6 150.7 Up 09:32:15 - 10:02:15 7487
Idyllwild 09:46:56 -30.4 Dark Up 56.4 155.9 Up 09:31:56 - 10:01:56 7459
Calipatria 09:46:48 -30.4 Dark Up 57.4 157.5 Up 09:31:48 - 10:01:48 7438
Wildwood 09:47:04 -31.0 Dark Up 55.4 153.1 Up 09:32:04 - 10:02:04 7435
Yuma 09:46:44 -30.3 Dark Up 58.1 158.9 Up 09:31:44 - 10:01:44 7425

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 07LG38, (2020/05/11 09:45UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 37.88  34
60Bet Oph      17:43:28.3 +04:34:05  2.8  7.15  34
PPM 165298     18:09:54.1 +03:07:08  6.1  0.70  30
PPM 165305     18:10:08.3 +02:22:51  8.3  0.20  29
PPM 165315     18:10:23.2 +02:31:46  8.7  0.14  29
07LG38         18:10:51.3 +02:27:43 15.6        29
Positions are for J2000

Event circumstances last updated at 2020/03/09 21:00:32 UT

Marc W. Buie, Southwest Research Institute

RECON