RECON: TNO occultation with 03HM57

Event between 03HM57 and star GA0540:24489645 with event index number of 1157095

Geocentric closest approach at 2021/07/22 05:26:51 UTC

J2000 position of star is 17:52:54.3 -34:34:05
Equinox of date position of star is 17:54:19.4 -34:34:17
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 11 degrees from the moon. Moon is 95% illuminated.
TNO apparent brightness V=20.3

[RECON map]
TNO is 14.7 AU from the Sun and 13.9 AU from the Earth.
The TNO is moving 15.7 km/sec on the sky relative to the star, or, 5.6 arcsec/hr.
The 1-sigma error in the time of the event is 142 seconds.
The 1-sigma cross-track error in the shadow position is 676 km.
The sky-plane scale is 10062.2 km/arcsec.

The TNO has an absolute magnitude Hv=8.5
Diameter=120.2 km assuming a 5% albedo -- 7.6 sec chord
Diameter=49.1 km assuming a 30% albedo -- 3.1 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 03HM57, (2021/07/22 05:27UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:43.9 -26:28:41  0.9 19.69  24
Kap Sco        17:43:58.8 -39:02:20  2.4  4.92  15
PPM 296948     17:54:45.9 -34:44:02  6.3  0.18  11
PPM 296947     17:54:42.2 -34:37:27  7.2  0.09  11
03HM57         17:54:20.4 -34:34:17 16.5        10
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 10.1 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 05:28:20 -11.6 NT Up 5.1 175.7 Really Low 05:16:02 - 05:40:38 5884
Kelowna 05:28:20 -11.9 NT Up 5.4 175.5 Really Low 05:16:02 - 05:40:38 5877
Penticton 05:28:22 -12.1 AT Up 5.8 175.5 Really Low 05:16:04 - 05:40:40 5872
Peachland 05:28:23 -11.9 NT Up 5.5 175.3 Really Low 05:16:05 - 05:40:41 5871
Summerland 05:28:22 -12.0 AT Up 5.7 175.4 Really Low 05:16:04 - 05:40:40 5871
Anarchist Mountain Observatory 05:28:21 -12.6 AT Up 6.3 175.6 Really Low 05:16:03 - 05:40:39 5869
Oliver 05:28:21 -12.4 AT Up 6.1 175.4 Really Low 05:16:03 - 05:40:39 5867
Tonasket 05:28:21 -12.8 AT Up 6.6 175.5 Really Low 05:16:03 - 05:40:39 5862
Okanogan 05:28:22 -13.0 AT Up 6.9 175.4 Really Low 05:16:04 - 05:40:40 5855
Dunrhomin 05:27:10 -25.2 Dark Up 14.8 187.3 Really Low 05:14:52 - 05:39:28 5853
Brewster 05:28:23 -13.2 AT Up 7.2 175.3 Really Low 05:16:05 - 05:40:41 5847
Manson/Chelan 05:28:25 -13.2 AT Up 7.4 175.0 Really Low 05:16:07 - 05:40:43 5838
Wenatchee 05:28:26 -13.5 AT Up 7.8 174.8 Really Low 05:16:08 - 05:40:44 5827
Pasco 05:28:21 -14.9 AT Up 9.1 175.8 Really Low 05:16:03 - 05:40:39 5826
PNWRO 05:28:20 -15.2 AT Up 9.3 176.0 Really Low 05:16:02 - 05:40:38 5826
Ellensburg 05:28:27 -13.7 AT Up 8.2 174.6 Really Low 05:16:09 - 05:40:45 5817
Yakima 05:28:27 -14.0 AT Up 8.6 174.6 Really Low 05:16:09 - 05:40:45 5809
Toppenish/White Swan 05:28:27 -14.3 AT Up 8.9 174.7 Really Low 05:16:09 - 05:40:45 5808
Victoria 05:28:39 -11.3 NT Up 6.5 172.3 Really Low 05:16:21 - 05:40:57 5791
Goldendale 05:28:29 -14.5 AT Up 9.4 174.4 Really Low 05:16:11 - 05:40:47 5790
The Dalles 05:28:30 -14.5 AT Up 9.6 174.1 Really Low 05:16:12 - 05:40:48 5778
Maupin 05:28:29 -14.9 AT Up 10.0 174.2 Really Low 05:16:11 - 05:40:47 5771
Redmond 05:28:32 -15.6 AT Up 10.9 174.1 Really Low 05:16:14 - 05:40:50 5750
Sisters 05:28:33 -15.4 AT Up 10.8 173.7 Really Low 05:16:15 - 05:40:51 5743
Bend 05:28:32 -15.7 AT Up 11.1 174.0 Really Low 05:16:14 - 05:40:50 5743
Oregon Observatory 05:28:32 -15.7 AT Up 11.3 173.8 Really Low 05:16:14 - 05:40:50 5736
North Lake 05:28:31 -16.5 AT Up 11.9 174.3 Really Low 05:16:13 - 05:40:49 5731
La Pine/Gilchrist 05:28:33 -15.9 AT Up 11.5 173.8 Really Low 05:16:15 - 05:40:51 5730
Paisley 05:28:28 -17.1 AT Up 12.5 174.6 Really Low 05:16:10 - 05:40:46 5723
Lakeview 05:28:28 -17.6 AT Up 13.0 174.7 Really Low 05:16:10 - 05:40:46 5713
Cedarville 05:28:27 -18.1 Dark Up 13.7 174.8 Really Low 05:16:09 - 05:40:45 5699
Chiloquin 05:28:35 -16.6 AT Up 12.5 173.5 Really Low 05:16:17 - 05:40:53 5695
Klamath Falls 05:28:35 -16.9 AT Up 12.9 173.5 Really Low 05:16:17 - 05:40:53 5687
Fall River/Burney 05:28:33 -17.9 AT Up 14.1 173.8 Really Low 05:16:15 - 05:40:51 5661
Susanville 05:28:30 -18.8 Dark Up 14.8 174.4 Really Low 05:16:12 - 05:40:48 5657
Reno 05:28:26 -19.9 Dark Up 15.7 175.1 Really Low 05:16:08 - 05:40:44 5646
Tonopah 05:28:12 -22.3 Dark Up 17.3 177.2 Really Low 05:15:54 - 05:40:30 5645
Gimple 05:28:31 -18.9 Dark Up 15.0 174.2 Really Low 05:16:13 - 05:40:49 5645
Greenville 05:28:31 -18.9 Dark Up 15.0 174.2 Really Low 05:16:13 - 05:40:49 5643
Portola 05:28:29 -19.3 Dark Up 15.4 174.6 Really Low 05:16:11 - 05:40:47 5643
Yerington 05:28:23 -20.6 Dark Up 16.3 175.6 Really Low 05:16:05 - 05:40:41 5641
Quincy 05:28:31 -19.0 Dark Up 15.2 174.2 Really Low 05:16:13 - 05:40:49 5637
Carson City 05:28:26 -20.1 Dark Up 16.1 175.1 Really Low 05:16:08 - 05:40:44 5635
Hawthorne 05:28:20 -21.2 Dark Up 16.8 176.1 Really Low 05:16:02 - 05:40:38 5635
Gardnerville 05:28:26 -20.4 Dark Up 16.3 175.1 Really Low 05:16:08 - 05:40:44 5628
Indian Springs 05:28:03 -24.2 Dark Up 18.8 178.5 Really Low 05:15:45 - 05:40:21 5618
Beatty 05:28:09 -23.4 Dark Up 18.5 177.6 Really Low 05:15:51 - 05:40:27 5612
Henderson 05:28:00 -24.9 Dark Up 19.4 179.1 Really Low 05:15:42 - 05:40:18 5609
Lee Vining 05:28:22 -21.4 Dark Up 17.3 175.6 Really Low 05:16:04 - 05:40:40 5608
Patrick 05:27:54 -25.9 Dark Up 20.0 180.1 Low 05:15:36 - 05:40:12 5603
Bishop 05:28:18 -22.2 Dark Up 18.0 176.2 Really Low 05:16:00 - 05:40:36 5600
Kingman/Dolan Springs 05:27:55 -26.0 Dark Up 20.2 179.9 Low 05:15:37 - 05:40:13 5592
Laughlin/Bullhead City 05:27:57 -25.8 Dark Up 20.3 179.5 Low 05:15:39 - 05:40:15 5582
Mohave Valley 05:27:57 -26.0 Dark Up 20.5 179.5 Low 05:15:39 - 05:40:15 5572
George/Scottsdale 05:27:41 -28.2 Dark Up 21.7 181.8 Low 05:15:23 - 05:39:59 5565
Lake Havasu City 05:27:55 -26.5 Dark Up 20.9 179.7 Low 05:15:37 - 05:40:13 5560
Parker 05:27:55 -26.8 Dark Up 21.3 179.7 Low 05:15:37 - 05:40:13 5547
Blythe 05:27:56 -27.0 Dark Up 21.8 179.4 Low 05:15:38 - 05:40:14 5521
Idyllwild 05:28:09 -25.9 Dark Up 21.7 177.6 Low 05:15:51 - 05:40:27 5492
Calipatria 05:28:02 -27.0 Dark Up 22.3 178.6 Low 05:15:44 - 05:40:20 5485
Yuma 05:27:56 -27.8 Dark Up 22.7 179.4 Low 05:15:38 - 05:40:14 5482
CPSLO 05:28:30 -22.7 Dark Up 19.9 174.3 Really Low 05:16:12 - 05:40:48 5479
Wildwood 05:28:19 -24.7 Dark Up 21.2 176.0 Low 05:16:01 - 05:40:37 5471

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, (2021/07/22 05:27UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 19.69  24
Kap Sco        17:42:29.3 -39:01:49  2.4  4.92  15
PPM 296948     17:53:19.6 -34:43:51  6.3  0.18  11
PPM 296947     17:53:16.0 -34:37:15  7.2  0.09  11
03HM57         17:52:54.3 -34:34:05 16.5        11
Positions are for J2000

Event circumstances last updated at 2021/04/18 22:57:29 UT

Marc W. Buie, Southwest Research Institute

RECON