RECON: TNO occultation with 09ME10

Event between 09ME10 and star GA0960:00019270 with event index number of 2075048

Geocentric closest approach at 2027/07/27 08:44:17 UTC

J2000 position of star is 00:12:12.4 +06:20:15
Equinox of date position of star is 00:13:20.4 +06:27:37
Stellar brightness G=12.9, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 37 degrees from the moon. Moon is 43% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 22.8 AU from the Sun and 22.3 AU from the Earth.
The TNO is moving 8.3 km/sec on the sky relative to the star, or, 1.9 arcsec/hr.
The 1-sigma error in the time of the event is 300 seconds.
The 1-sigma cross-track error in the shadow position is 2079 km.
The sky-plane scale is 16172.6 km/arcsec.

The TNO has an absolute magnitude Hv=8.2
Diameter=136.8 km assuming a 5% albedo -- 16.4 sec chord
Diameter=55.8 km assuming a 30% albedo -- 6.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 09ME10, (2027/07/27 08:44UT)
Object            RA         Dec     mag  sep  mel
Algenib        00:14:39.5 +15:20:12  2.8  8.85  33
41 Psc         00:22:01.1 +08:20:35  5.4  2.79  34
PPM 143175     00:09:50.8 +06:46:12  8.1  0.98  37
PPM 143258     00:14:12.8 +06:19:45  9.0  0.22  37
PPM 143249     00:13:47.1 +06:32:58 11.0  0.07  37
09ME10         00:13:37.4 +06:29:27 12.9        36
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 3.0 sigma about the mid-time.
The median site spacing is 27.1 km RECON observability=1.0 and success probability=22.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:48:53 -15.5 AT Up 37.3 138.7 Up 08:33:53 - 09:03:53 -12
Kamloops 08:50:32 -19.5 Dark Up 31.5 123.0 Up 08:35:32 - 09:05:32 -89
Kelowna 08:50:32 -20.2 Dark Up 32.5 123.5 Up 08:35:32 - 09:05:32 -157
Peachland 08:50:35 -20.3 Dark Up 32.4 123.1 Up 08:35:35 - 09:05:35 -165
Summerland 08:50:36 -20.4 Dark Up 32.5 123.2 Up 08:35:36 - 09:05:36 -178
Penticton 08:50:35 -20.5 Dark Up 32.6 123.2 Up 08:35:35 - 09:05:35 -183
Oliver 08:50:38 -20.8 Dark Up 32.8 123.1 Up 08:35:38 - 09:05:38 -212
Anarchist Mountain Observatory 08:50:37 -21.0 Dark Up 33.0 123.2 Up 08:35:37 - 09:05:37 -226
Tonasket 08:50:40 -21.3 Dark Up 33.1 122.9 Up 08:35:40 - 09:05:40 -252
Victoria 08:51:03 -21.9 Dark Up 31.0 119.1 Up 08:36:03 - 09:06:03 -252
Okanogan 08:50:43 -21.6 Dark Up 33.2 122.6 Up 08:35:43 - 09:05:43 -279
Brewster 08:50:46 -21.9 Dark Up 33.3 122.3 Up 08:35:46 - 09:05:46 -301
Manson/Chelan 08:50:50 -22.2 Dark Up 33.2 121.8 Up 08:35:50 - 09:05:50 -317
Wenatchee 08:50:53 -22.7 Dark Up 33.4 121.4 Up 08:35:53 - 09:05:53 -356
Ellensburg 08:50:58 -23.1 Dark Up 33.5 121.0 Up 08:35:58 - 09:05:58 -390
Yakima 08:51:00 -23.5 Dark Up 33.7 120.7 Up 08:36:00 - 09:06:00 -425
Toppenish/White Swan 08:51:00 -23.7 Dark Up 33.9 120.8 Up 08:36:00 - 09:06:00 -444
PNWRO 08:50:54 -23.8 Dark Up 34.9 122.0 Up 08:35:54 - 09:05:54 -481
Goldendale 08:51:03 -24.3 Dark Up 33.9 120.0 Up 08:36:03 - 09:06:03 -490
The Dalles 08:51:03 -24.6 Dark Up 33.8 119.6 Up 08:36:03 - 09:06:03 -511
Maupin 08:51:03 -25.0 Dark Up 34.1 119.4 Up 08:36:03 - 09:06:03 -549
Sisters 08:51:03 -25.9 Dark Up 34.2 118.4 Up 08:36:03 - 09:06:03 -637
Bend 08:51:03 -26.1 Dark Up 34.5 118.5 Up 08:36:03 - 09:06:03 -657
Oregon Observatory 08:51:03 -26.3 Dark Up 34.5 118.3 Up 08:36:03 - 09:06:03 -676
North Lake 08:51:03 -26.8 Dark Up 35.1 118.4 Up 08:36:03 - 09:06:03 -733
Chiloquin 08:51:03 -27.6 Dark Up 34.8 117.1 Up 08:36:03 - 09:06:03 -812
Lakeview 08:51:03 -27.8 Dark Up 36.0 118.3 Up 08:36:03 - 09:06:03 -833
Klamath Falls 08:51:03 -27.9 Dark Up 35.0 117.0 Up 08:36:03 - 09:06:03 -846
Cedarville 08:51:03 -28.4 Dark Up 36.4 118.0 Up 08:36:03 - 09:06:03 -896
Fall River/Burney 08:51:03 -29.1 Dark Up 35.8 116.6 Up 08:36:03 - 09:06:03 -961
Susanville 08:51:03 -29.6 Dark Up 36.6 116.8 Up 08:36:03 - 09:06:03 -1015
Dunrhomin 08:49:40 -25.9 Dark Up 46.2 132.3 Up 08:34:40 - 09:04:40 -1029
Gimple 08:51:03 -29.9 Dark Up 36.6 116.5 Up 08:36:03 - 09:06:03 -1046
Greenville 08:51:03 -29.9 Dark Up 36.5 116.4 Up 08:36:03 - 09:06:03 -1047
Quincy 08:51:03 -30.1 Dark Up 36.6 116.3 Up 08:36:03 - 09:06:03 -1068
Portola 08:51:03 -30.1 Dark Up 37.0 116.6 Up 08:36:03 - 09:06:03 -1074
Reno 08:51:03 -30.3 Dark Up 37.6 117.0 Up 08:36:03 - 09:06:03 -1093
Carson City 08:51:03 -30.6 Dark Up 37.7 116.8 Up 08:36:03 - 09:06:03 -1129
Yerington 08:51:03 -30.7 Dark Up 38.3 117.2 Up 08:36:03 - 09:06:03 -1142
Gardnerville 08:51:03 -30.9 Dark Up 37.9 116.7 Up 08:36:03 - 09:06:03 -1154
Hawthorne 08:51:03 -31.1 Dark Up 38.8 117.4 Up 08:36:03 - 09:06:03 -1183
Tonopah 08:51:03 -31.2 Dark Up 40.0 118.3 Up 08:36:03 - 09:06:03 -1219
Lee Vining 08:51:03 -31.7 Dark Up 38.7 116.5 Up 08:36:03 - 09:06:03 -1246
Bishop 08:51:03 -32.2 Dark Up 39.5 116.7 Up 08:36:03 - 09:06:03 -1299
Beatty 08:51:03 -32.3 Dark Up 40.9 117.9 Up 08:36:03 - 09:06:03 -1332
Indian Springs 08:51:03 -32.3 Dark Up 41.8 118.6 Up 08:36:03 - 09:06:03 -1360
Henderson 08:51:03 -32.7 Dark Up 42.6 118.9 Up 08:36:03 - 09:06:03 -1411
Patrick 08:51:03 -33.0 Dark Up 43.7 119.4 Up 08:36:03 - 09:06:03 -1471
Kingman/Dolan Springs 08:51:03 -33.2 Dark Up 43.6 119.1 Up 08:36:03 - 09:06:03 -1494
Laughlin/Bullhead City 08:51:03 -33.4 Dark Up 43.3 118.6 Up 08:36:03 - 09:06:03 -1497
Mohave Valley 08:51:03 -33.6 Dark Up 43.4 118.3 Up 08:36:03 - 09:06:03 -1524
Lake Havasu City 08:51:03 -34.0 Dark Up 43.8 118.2 Up 08:36:03 - 09:06:03 -1564
Parker 08:51:03 -34.3 Dark Up 44.0 118.0 Up 08:36:03 - 09:06:03 -1600
Wildwood 08:51:03 -35.4 Dark Up 40.8 114.1 Up 08:36:03 - 09:06:03 -1642
George/Scottsdale 08:51:02 -34.0 Dark Up 45.9 119.9 Up 08:36:02 - 09:06:02 -1642
Idyllwild 08:51:03 -35.3 Dark Up 42.4 115.4 Up 08:36:03 - 09:06:03 -1657
Calipatria 08:51:03 -35.6 Dark Up 43.5 116.0 Up 08:36:03 - 09:06:03 -1710
Yuma 08:51:03 -35.7 Dark Up 44.4 116.4 Up 08:36:03 - 09:06:03 -1749

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 09ME10, (2027/07/27 08:44UT)
Object            RA         Dec     mag  sep  mel
Algenib        00:13:14.2 +15:11:01  2.8  8.85  33
41 Psc         00:20:35.9 +08:11:25  5.4  2.79  34
PPM 143175     00:08:25.9 +06:37:00  8.1  0.98  37
PPM 143258     00:12:47.8 +06:10:33  9.0  0.22  37
PPM 143249     00:12:22.1 +06:23:46 11.0  0.07  37
09ME10         00:12:12.4 +06:20:15 12.9        37
Positions are for J2000

Event circumstances last updated at 2022/01/27 00:44:59 UT

Marc W. Buie, Southwest Research Institute

RECON