RECON: TNO occultation with 03HM57

Event between 03HM57 and star GA0540:27916222 with event index number of 1156804

Geocentric closest approach at 2021/06/09 08:36:37 UTC

J2000 position of star is 18:02:12.9 -34:37:04
Equinox of date position of star is 18:03:38.0 -34:36:59
Stellar brightness G=16.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 154 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=20.2

[RECON map]
TNO is 14.8 AU from the Sun and 13.8 AU from the Earth.
The TNO is moving 19.1 km/sec on the sky relative to the star, or, 6.9 arcsec/hr.
The 1-sigma error in the time of the event is 128 seconds.
The 1-sigma cross-track error in the shadow position is 639 km.
The sky-plane scale is 10029.2 km/arcsec.

The TNO has an absolute magnitude Hv=8.5
Diameter=120.2 km assuming a 5% albedo -- 6.3 sec chord
Diameter=49.1 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 03HM57, (2021/06/09 08:37UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:43.5 -26:28:40  0.9 21.53 174
Kap Sco        17:43:58.3 -39:02:20  2.4  5.92 155
PPM 297209     18:06:17.0 -35:53:56  5.7  1.39 153
PPM 297123     18:02:11.7 -34:42:25  8.5  0.31 154
PPM 297142     18:03:04.3 -34:24:39  8.9  0.24 154
03HM57         18:03:38.6 -34:36:59 16.0       154
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 5.0 sigma about the mid-time.
The median site spacing is 11.6 km RECON observability=0.2 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)
Clarence Fulton 08:36:18 -16.3 AT Down 5.1 177.6 Really Low 08:25:08 - 08:47:28 8013
Peachland 08:36:20 -16.8 AT Down 5.6 177.3 Really Low 08:25:10 - 08:47:30 8011
Kelowna 08:36:19 -16.7 AT Down 5.5 177.5 Really Low 08:25:09 - 08:47:29 8010
Summerland 08:36:20 -16.9 AT Down 5.7 177.4 Really Low 08:25:10 - 08:47:30 8009
Penticton 08:36:20 -17.0 AT Down 5.8 177.4 Really Low 08:25:10 - 08:47:30 8007
Victoria 08:36:34 -18.3 Dark Down 6.6 174.3 Really Low 08:25:24 - 08:47:44 8007
Oliver 08:36:19 -17.3 AT Down 6.2 177.4 Really Low 08:25:09 - 08:47:29 8003
Anarchist Mountain Observatory 08:36:19 -17.5 AT Down 6.3 177.6 Really Low 08:25:09 - 08:47:29 8001
Tonasket 08:36:19 -17.8 AT Down 6.6 177.5 Really Low 08:25:09 - 08:47:29 7997
Okanogan 08:36:20 -18.1 Dark Down 7.0 177.4 Really Low 08:25:10 - 08:47:30 7993
Brewster 08:36:21 -18.4 Dark Down 7.2 177.3 Really Low 08:25:11 - 08:47:31 7990
Manson/Chelan 08:36:22 -18.7 Dark Down 7.4 176.9 Really Low 08:25:12 - 08:47:32 7989
Wenatchee 08:36:23 -19.2 Dark Down 7.9 176.8 Really Low 08:25:13 - 08:47:33 7983
Ellensburg 08:36:24 -19.6 Dark Down 8.3 176.6 Really Low 08:25:14 - 08:47:34 7978
Yakima 08:36:25 -20.0 Dark Down 8.7 176.6 Really Low 08:25:15 - 08:47:35 7971
Toppenish/White Swan 08:36:24 -20.2 Dark Down 8.9 176.7 Really Low 08:25:14 - 08:47:34 7967
Goldendale 08:36:25 -20.8 Dark Down 9.5 176.4 Really Low 08:25:15 - 08:47:35 7959
Pasco 08:36:19 -20.2 Dark Down 9.1 177.8 Really Low 08:25:09 - 08:47:29 7959
The Dalles 08:36:27 -21.0 Dark Down 9.7 176.1 Really Low 08:25:17 - 08:47:37 7956
PNWRO 08:36:18 -20.4 Dark Down 9.3 178.0 Really Low 08:25:08 - 08:47:28 7954
Maupin 08:36:26 -21.5 Dark Down 10.1 176.2 Really Low 08:25:16 - 08:47:36 7948
Sisters 08:36:29 -22.4 Dark Down 11.0 175.8 Really Low 08:25:19 - 08:47:39 7933
Redmond 08:36:28 -22.4 Dark Down 11.0 176.1 Really Low 08:25:18 - 08:47:38 7931
Bend 08:36:28 -22.6 Dark Down 11.2 176.0 Really Low 08:25:18 - 08:47:38 7927
Oregon Observatory 08:36:29 -22.8 Dark Down 11.4 175.9 Really Low 08:25:19 - 08:47:39 7924
La Pine/Gilchrist 08:36:29 -23.0 Dark Down 11.6 175.8 Really Low 08:25:19 - 08:47:39 7919
North Lake 08:36:27 -23.3 Dark Down 12.0 176.3 Really Low 08:25:17 - 08:47:37 7908
Chiloquin 08:36:32 -24.1 Dark Down 12.7 175.5 Really Low 08:25:22 - 08:47:42 7895
Paisley 08:36:26 -23.9 Dark Down 12.6 176.6 Really Low 08:25:16 - 08:47:36 7893
Klamath Falls 08:36:31 -24.4 Dark Down 13.0 175.6 Really Low 08:25:21 - 08:47:41 7886
Lakeview 08:36:25 -24.3 Dark Down 13.1 176.7 Really Low 08:25:15 - 08:47:35 7880
Cedarville 08:36:24 -25.0 Dark Down 13.8 176.9 Really Low 08:25:14 - 08:47:34 7863
Fall River/Burney 08:36:30 -25.6 Dark Down 14.2 175.9 Really Low 08:25:20 - 08:47:40 7854
Susanville 08:36:27 -26.1 Dark Down 14.9 176.5 Really Low 08:25:17 - 08:47:37 7834
Greenville 08:36:29 -26.4 Dark Down 15.1 176.2 Really Low 08:25:19 - 08:47:39 7828
Gimple 08:36:28 -26.4 Dark Down 15.1 176.3 Really Low 08:25:18 - 08:47:38 7827
Quincy 08:36:29 -26.6 Dark Down 15.3 176.2 Really Low 08:25:19 - 08:47:39 7822
Portola 08:36:26 -26.7 Dark Down 15.5 176.6 Really Low 08:25:16 - 08:47:36 7816
Reno 08:36:24 -26.9 Dark Down 15.8 177.2 Really Low 08:25:14 - 08:47:34 7806
Carson City 08:36:24 -27.2 Dark Down 16.1 177.2 Really Low 08:25:14 - 08:47:34 7795
Gardnerville 08:36:24 -27.5 Dark Down 16.4 177.2 Really Low 08:25:14 - 08:47:34 7787
Yerington 08:36:22 -27.3 Dark Down 16.3 177.7 Really Low 08:25:12 - 08:47:32 7785
Hawthorne 08:36:19 -27.7 Dark Down 16.8 178.1 Really Low 08:25:09 - 08:47:29 7768
Lee Vining 08:36:22 -28.3 Dark Down 17.4 177.7 Really Low 08:25:12 - 08:47:32 7753
Tonopah 08:36:13 -27.9 Dark Down 17.3 179.3 Really Low 08:25:03 - 08:47:23 7744
Bishop 08:36:19 -28.8 Dark Down 18.0 178.3 Really Low 08:25:09 - 08:47:29 7728
Beatty 08:36:11 -29.0 Dark Down 18.5 179.7 Really Low 08:25:01 - 08:47:21 7700
Indian Springs 08:36:06 -29.1 Dark Down 18.8 180.6 Really Low 08:24:56 - 08:47:16 7680
Dunrhomin 08:35:21 -23.0 Dark Down 14.4 189.4 Really Low 08:24:11 - 08:46:31 7669
CPSLO 08:36:30 -31.2 Dark Down 20.0 176.4 Really Low 08:25:20 - 08:47:40 7665
Henderson 08:36:04 -29.5 Dark Down 19.3 181.2 Really Low 08:24:54 - 08:47:14 7654
Patrick 08:35:59 -29.9 Dark Down 19.9 182.2 Really Low 08:24:49 - 08:47:09 7620
Laughlin/Bullhead City 08:36:02 -30.2 Dark Down 20.2 181.6 Low 08:24:52 - 08:47:12 7617
Kingman/Dolan Springs 08:35:59 -30.1 Dark Down 20.2 182.0 Low 08:24:49 - 08:47:09 7613
Wildwood 08:36:21 -32.1 Dark Down 21.3 178.1 Low 08:25:11 - 08:47:31 7608
Mohave Valley 08:36:01 -30.5 Dark Down 20.5 181.6 Low 08:24:51 - 08:47:11 7606
Lake Havasu City 08:36:01 -30.8 Dark Down 20.9 181.8 Low 08:24:51 - 08:47:11 7588
Idyllwild 08:36:12 -32.1 Dark Down 21.6 179.8 Low 08:25:02 - 08:47:22 7581
Parker 08:36:01 -31.2 Dark Down 21.2 181.9 Low 08:24:51 - 08:47:11 7574
Blythe 08:36:02 -31.7 Dark Down 21.7 181.6 Low 08:24:52 - 08:47:12 7555
Calipatria 08:36:07 -32.4 Dark Down 22.3 180.8 Low 08:24:57 - 08:47:17 7544
George/Scottsdale 08:35:50 -31.0 Dark Down 21.5 184.0 Low 08:24:40 - 08:47:00 7530
Yuma 08:36:02 -32.6 Dark Down 22.7 181.6 Low 08:24:52 - 08:47:12 7517

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 03HM57, (2021/06/09 08:37UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 21.53 174
Kap Sco        17:42:29.3 -39:01:49  2.4  5.92 155
PPM 297209     18:04:50.4 -35:54:06  5.7  1.39 153
PPM 297123     18:00:46.0 -34:42:27  8.5  0.31 154
PPM 297142     18:01:38.7 -34:24:44  8.9  0.24 154
03HM57         18:02:12.9 -34:37:04 16.0       154
Positions are for J2000

Event circumstances last updated at 2021/04/18 22:56:24 UT

Marc W. Buie, Southwest Research Institute

RECON