RECON: TNO occultation with 03HM57

Event between 03HM57 and star GA0560:21727904 with event index number of 300371

Geocentric closest approach at 2020/04/10 12:13:24 UTC

J2000 position of star is 17:32:25.8 -33:30:37
Equinox of date position of star is 17:33:45.6 -33:31:25
Stellar brightness G=16.9, use SENSEUP=128
Star is 32 degrees from the moon. Moon is 92% illuminated.
TNO apparent brightness V=22.2

[RECON map]
TNO is 15.5 AU from the Sun and 15.0 AU from the Earth.
The TNO is moving 6.4 km/sec on the sky relative to the star, or, 2.1 arcsec/hr.
The 1-sigma error in the time of the event is 145 seconds.
The 1-sigma cross-track error in the shadow position is 1738 km.
The sky-plane scale is 10914.6 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=120.2 km assuming a 5% albedo -- 9.4 sec chord
Diameter=49.1 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 03HM57, (2020/04/10 12:13UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:39.2 -26:28:31  0.9 15.35  17
34Ups Sco      17:32:08.7 -37:18:36  2.7  3.80  34
PPM 296449     17:33:07.6 -33:43:01  6.4  0.23  32
PPM 296461     17:33:40.8 -33:21:12  8.9  0.17  32
03HM57         17:33:46.0 -33:31:25 16.9        32
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 **** km RECON observability=0.1 and success probability=0.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 12:01:45 -14.6 AT Up 7.7 174.2 Really Low 11:49:09 - 12:14:22 6823
Sisters 12:01:46 -15.6 AT Up 12.1 175.7 Really Low 11:49:10 - 12:14:23 6696
Klamath Falls 12:01:58 -16.7 AT Up 14.1 175.5 Really Low 11:49:21 - 12:14:34 6687
La Pine/Gilchrist 12:01:47 -15.9 AT Up 12.7 175.7 Really Low 11:49:11 - 12:14:24 6686
Oregon Observatory 12:01:47 -15.7 AT Up 12.5 175.8 Really Low 11:49:11 - 12:14:24 6685
The Dalles 12:01:38 -14.8 AT Up 10.8 176.0 Really Low 11:49:02 - 12:14:15 6683
Bend 12:01:44 -15.6 AT Up 12.3 175.9 Really Low 11:49:07 - 12:14:20 6678
Maupin 12:01:38 -14.9 AT Up 11.2 176.1 Really Low 11:49:02 - 12:14:15 6674
Redmond 12:01:44 -15.4 AT Up 12.1 176.0 Really Low 11:49:07 - 12:14:20 6672
Goldendale 12:01:35 -14.5 AT Up 10.6 176.3 Really Low 11:48:58 - 12:14:11 6664
Ellensburg 12:01:28 -13.8 AT Up 9.4 176.5 Really Low 11:48:51 - 12:14:04 6657
Yakima 12:01:30 -14.0 AT Up 9.8 176.5 Really Low 11:48:54 - 12:14:07 6655
Fall River/Burney 12:01:58 -17.0 AT Up 15.3 175.8 Really Low 11:49:21 - 12:14:34 6649
Wenatchee 12:01:26 -13.4 AT Up 9.0 176.7 Really Low 11:48:49 - 12:14:02 6646
North Lake 12:01:45 -15.7 AT Up 13.1 176.2 Really Low 11:49:08 - 12:14:21 6645
Toppenish/White Swan 12:01:28 -14.0 AT Up 10.0 176.7 Really Low 11:48:51 - 12:14:04 6643
Entiat 12:01:23 -13.3 AT Up 8.8 176.8 Really Low 11:48:47 - 12:14:00 6642
Manson/Chelan 12:01:24 -13.1 AT Up 8.5 176.9 Really Low 11:48:47 - 12:14:00 6640
Peachland 12:01:10 -12.0 AT Up 6.7 177.1 Really Low 11:48:34 - 12:13:47 6627
Summerland 12:01:14 -12.0 AT Up 6.8 177.2 Really Low 11:48:37 - 12:13:50 6621
Brewster 12:01:19 -12.8 AT Up 8.3 177.1 Really Low 11:48:42 - 12:13:55 6620
Paisley 12:01:44 -15.7 AT Up 13.7 176.5 Really Low 11:49:07 - 12:14:20 6617
Penticton 12:01:10 -12.0 AT Up 6.9 177.3 Really Low 11:48:34 - 12:13:47 6614
Oliver 12:01:14 -12.2 AT Up 7.3 177.3 Really Low 11:48:37 - 12:13:50 6613
Kelowna 12:01:12 -11.8 NT Up 6.6 177.4 Really Low 11:48:35 - 12:13:48 6611
Okanogan 12:01:15 -12.6 AT Up 8.1 177.3 Really Low 11:48:39 - 12:13:52 6610
Greenville 12:02:00 -17.1 AT Up 16.2 176.2 Really Low 11:49:24 - 12:14:37 6607
Quincy 12:01:57 -17.2 AT Up 16.4 176.2 Really Low 11:49:21 - 12:14:34 6604
Clarence Fulton 12:01:08 -11.5 NT Up 6.2 177.5 Really Low 11:48:32 - 12:13:45 6604
Tonasket 12:01:17 -12.3 AT Up 7.7 177.4 Really Low 11:48:41 - 12:13:54 6604
Gimple 12:01:56 -17.1 AT Up 16.2 176.3 Really Low 11:49:20 - 12:14:33 6602
Anarchist Mountain Observatory 12:01:10 -12.1 AT Up 7.4 177.5 Really Low 11:48:34 - 12:13:47 6602
Lakeview 12:01:47 -15.8 AT Up 14.2 176.7 Really Low 11:49:11 - 12:14:24 6598
Susanville 12:01:56 -16.8 AT Up 16.0 176.4 Really Low 11:49:20 - 12:14:33 6593
Cedarville 12:01:46 -16.0 AT Up 14.9 176.8 Really Low 11:49:09 - 12:14:22 6578
Portola 12:01:59 -17.0 AT Up 16.6 176.6 Really Low 11:49:23 - 12:14:36 6572
Pasco 12:01:17 -13.3 AT Up 10.2 177.7 Really Low 11:48:41 - 12:13:54 6568
PNWRO 12:01:21 -13.2 AT Up 10.5 177.9 Really Low 11:48:44 - 12:13:57 6552
Reno 12:01:53 -16.6 AT Up 16.9 177.1 Really Low 11:49:16 - 12:14:29 6525
Carson City 12:01:54 -16.8 AT Up 17.2 177.2 Really Low 11:49:18 - 12:14:31 6518
Gardnerville 12:01:53 -16.9 AT Up 17.5 177.2 Really Low 11:49:17 - 12:14:30 6510
CPSLO 12:02:23 -19.0 Dark Up 21.1 176.4 Low 11:49:46 - 12:14:59 6499
Yerington 12:01:52 -16.4 AT Up 17.5 177.7 Really Low 11:49:16 - 12:14:29 6472
Lee Vining 12:01:56 -16.8 AT Up 18.5 177.7 Really Low 11:49:19 - 12:14:32 6451
Hawthorne 12:01:46 -16.3 AT Up 17.9 178.1 Really Low 11:49:10 - 12:14:23 6429
Bishop 12:01:49 -16.6 AT Up 19.1 178.4 Really Low 11:49:13 - 12:14:26 6389
Wildwood 12:02:10 -18.0 Dark Up 22.4 178.2 Low 11:49:34 - 12:14:47 6329
Tonopah 12:01:42 -15.5 AT Up 18.4 179.4 Really Low 11:49:05 - 12:14:18 6324
Beatty 12:01:43 -15.6 AT Up 19.6 179.8 Really Low 11:49:06 - 12:14:19 6267
Idyllwild 12:01:57 -16.7 AT Up 22.8 179.9 Low 11:49:20 - 12:14:33 6186
Indian Springs 12:01:36 -14.9 AT Up 19.9 180.7 Really Low 11:48:59 - 12:14:12 6184
Henderson 12:01:28 -14.6 AT Up 20.4 181.3 Low 11:48:52 - 12:14:05 6122
Searchlight/Boulder City 12:01:35 -14.8 AT Up 21.0 181.4 Low 11:48:58 - 12:14:11 6103
Calipatria 12:01:51 -16.1 AT Up 23.4 180.9 Low 11:49:14 - 12:14:27 6083
Laughlin/Bullhead City 12:01:32 -14.6 AT Up 21.3 181.7 Low 11:48:56 - 12:14:09 6070
Mohave Valley 12:01:34 -14.7 AT Up 21.6 181.7 Low 11:48:57 - 12:14:10 6062
Kingman/Dolan Springs 12:01:24 -14.3 AT Up 21.3 182.1 Low 11:48:48 - 12:14:01 6034
Lake Havasu City 12:01:32 -14.7 AT Up 22.0 181.9 Low 11:48:55 - 12:14:08 6034
Blythe 12:01:41 -15.2 AT Up 22.8 181.7 Low 11:49:04 - 12:14:17 6028
Patrick 12:01:28 -14.0 AT Up 21.0 182.3 Low 11:48:51 - 12:14:04 6026
Parker 12:01:36 -14.8 AT Up 22.3 182.0 Low 11:49:00 - 12:14:13 6022
Yuma 12:01:44 -15.5 AT Up 23.8 181.7 Low 11:49:08 - 12:14:21 6004
DCO 12:01:21 -13.6 AT Up 21.3 182.9 Low 11:48:44 - 12:13:57 5967
George/Scottsdale 12:01:18 -13.1 AT Up 22.6 184.1 Low 11:48:42 - 12:13:55 5830
SwRI 12:00:00 -6.4 NT Up 15.8 189.4 Really Low 11:47:24 - 12:12:37 5543
Niwot 12:00:01 -6.3 NT Up 15.7 189.4 Really Low 11:47:24 - 12:12:37 5540

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, (2020/04/10 12:13UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 15.35  17
34Ups Sco      17:30:45.8 -37:17:46  2.7  3.80  34
PPM 296449     17:31:47.3 -33:42:12  6.4  0.23  32
PPM 296461     17:32:20.8 -33:20:24  8.9  0.17  32
03HM57         17:32:25.8 -33:30:37 16.9        32
Positions are for J2000

Event circumstances last updated at 2020/03/08 20:25:43 UT

Marc W. Buie, Southwest Research Institute

RECON