RECON: TNO occultation with 00YH2

Event between 00YH2 and star GA0960:03105036 with event index number of 1995190

Geocentric closest approach at 2023/01/27 06:13:31 UTC

J2000 position of star is 07:44:38.4 +07:59:06
Equinox of date position of star is 07:45:50.4 +07:55:49
Stellar brightness G=16.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 96 degrees from the moon. Moon is 36% illuminated.
TNO apparent brightness V=22.3

[RECON map]
TNO is 28.1 AU from the Sun and 27.1 AU from the Earth.
The TNO is moving 23.5 km/sec on the sky relative to the star, or, 4.3 arcsec/hr.
The 1-sigma error in the time of the event is 221 seconds.
The 1-sigma cross-track error in the shadow position is 2266 km.
The sky-plane scale is 19658.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.8
Diameter=166.0 km assuming a 5% albedo -- 7.1 sec chord
Diameter=67.8 km assuming a 30% albedo -- 2.9 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 00YH2, (2023/01/27 06:14UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:43.6 +27:58:07  1.1 20.04  93
Alhena         06:39:02.7 +16:22:39  1.9 18.37  79
11 CMi         07:47:32.3 +10:42:37  5.2  2.81  96
PPM 153164     07:43:45.2 +07:24:46  8.0  0.74  95
PPM 153261     07:46:48.9 +07:40:27  9.0  0.34  96
PPM 153253     07:46:35.1 +07:57:31 11.0  0.18  96
00YH2          07:45:53.2 +07:55:41 16.6        96
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 4.1 sigma about the mid-time.
The median site spacing is 26.2 km RECON observability=1.0 and success probability=22.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 06:14:20 -54.3 Dark Up 45.9 176.8 Up 05:59:20 - 06:29:20 19
Kamloops 06:15:00 -50.1 Dark Up 45.2 156.5 Up 06:00:00 - 06:30:00 -287
Kelowna 06:14:58 -51.1 Dark Up 46.1 157.4 Up 05:59:58 - 06:29:58 -345
Peachland 06:14:59 -51.0 Dark Up 46.2 156.9 Up 05:59:59 - 06:29:59 -358
Summerland 06:14:59 -51.2 Dark Up 46.3 157.0 Up 05:59:59 - 06:29:59 -370
Penticton 06:14:58 -51.3 Dark Up 46.4 157.1 Up 05:59:58 - 06:29:58 -374
Oliver 06:14:58 -51.5 Dark Up 46.7 157.0 Up 05:59:58 - 06:29:58 -404
Anarchist Mountain Observatory 06:14:58 -51.7 Dark Up 47.0 157.2 Up 05:59:58 - 06:29:58 -416
Tonasket 06:14:58 -51.9 Dark Up 47.2 156.9 Up 05:59:58 - 06:29:58 -444
Okanogan 06:14:59 -52.0 Dark Up 47.5 156.6 Up 05:59:59 - 06:29:59 -476
Brewster 06:14:59 -52.1 Dark Up 47.7 156.2 Up 05:59:59 - 06:29:59 -502
Victoria 06:15:10 -50.0 Dark Up 46.2 151.4 Up 06:00:10 - 06:30:10 -508
Manson/Chelan 06:15:00 -52.1 Dark Up 47.8 155.6 Up 06:00:00 - 06:30:00 -525
Wenatchee 06:15:01 -52.3 Dark Up 48.2 155.1 Up 06:00:01 - 06:30:01 -569
Ellensburg 06:15:02 -52.4 Dark Up 48.5 154.6 Up 06:00:02 - 06:30:02 -608
Yakima 06:15:02 -52.7 Dark Up 48.8 154.4 Up 06:00:02 - 06:30:02 -645
Toppenish/White Swan 06:15:01 -52.9 Dark Up 49.1 154.5 Up 06:00:01 - 06:30:01 -662
PNWRO 06:14:57 -53.9 Dark Up 49.8 156.5 Up 05:59:57 - 06:29:57 -675
Goldendale 06:15:03 -53.0 Dark Up 49.4 153.6 Up 06:00:03 - 06:30:03 -717
The Dalles 06:15:04 -53.0 Dark Up 49.5 153.0 Up 06:00:04 - 06:30:04 -742
Maupin 06:15:04 -53.3 Dark Up 49.9 152.9 Up 06:00:04 - 06:30:04 -779
Sisters 06:15:05 -53.5 Dark Up 50.6 151.7 Up 06:00:05 - 06:30:05 -865
Bend 06:15:04 -53.8 Dark Up 50.9 152.0 Up 06:00:04 - 06:30:04 -884
Oregon Observatory 06:15:05 -53.8 Dark Up 51.0 151.7 Up 06:00:05 - 06:30:05 -901
North Lake 06:15:04 -54.5 Dark Up 51.7 152.1 Up 06:00:04 - 06:30:04 -954
Dunrhomin 06:14:09 -64.8 Dark Up 57.7 177.2 Up 05:59:09 - 06:29:09 -983
CU-SBO 06:14:10 -65.0 Dark Up 57.9 177.0 Up 05:59:10 - 06:29:10 -1008
Chiloquin 06:15:06 -54.3 Dark Up 52.0 150.3 Up 06:00:06 - 06:30:06 -1030
Lakeview 06:15:02 -55.4 Dark Up 52.8 152.3 Up 06:00:02 - 06:30:02 -1045
Klamath Falls 06:15:06 -54.5 Dark Up 52.3 150.2 Up 06:00:06 - 06:30:06 -1061
Cedarville 06:15:02 -55.9 Dark Up 53.5 152.2 Up 06:00:02 - 06:30:02 -1104
Fall River/Burney 06:15:05 -55.4 Dark Up 53.5 150.0 Up 06:00:05 - 06:30:05 -1167
Susanville 06:15:03 -56.2 Dark Up 54.3 150.7 Up 06:00:03 - 06:30:03 -1217
Gimple 06:15:03 -56.2 Dark Up 54.4 150.2 Up 06:00:03 - 06:30:03 -1247
Greenville 06:15:04 -56.1 Dark Up 54.4 150.0 Up 06:00:04 - 06:30:04 -1248
Quincy 06:15:04 -56.2 Dark Up 54.6 149.9 Up 06:00:04 - 06:30:04 -1267
Portola 06:15:02 -56.6 Dark Up 54.9 150.5 Up 06:00:02 - 06:30:02 -1272
Reno 06:15:00 -57.2 Dark Up 55.4 151.4 Up 06:00:00 - 06:30:00 -1288
Carson City 06:15:00 -57.4 Dark Up 55.7 151.2 Up 06:00:00 - 06:30:00 -1323
Yerington 06:14:58 -57.9 Dark Up 56.1 152.1 Up 05:59:58 - 06:29:58 -1332
Gardnerville 06:15:00 -57.5 Dark Up 55.9 151.1 Up 06:00:00 - 06:30:00 -1346
Hawthorne 06:14:56 -58.5 Dark Up 56.7 152.6 Up 05:59:56 - 06:29:56 -1369
Tonopah 06:14:51 -59.7 Dark Up 57.6 154.7 Up 05:59:51 - 06:29:51 -1393
Lee Vining 06:14:57 -58.4 Dark Up 57.0 151.4 Up 05:59:57 - 06:29:57 -1431
Bishop 06:14:55 -59.2 Dark Up 57.8 152.2 Up 05:59:55 - 06:29:55 -1479
Beatty 06:14:49 -60.6 Dark Up 58.8 154.7 Up 05:59:49 - 06:29:49 -1499
Indian Springs 06:14:45 -61.5 Dark Up 59.4 156.4 Up 05:59:45 - 06:29:45 -1513
Henderson 06:14:40 -62.2 Dark Up 60.1 157.3 Up 05:59:40 - 06:29:40 -1555
Patrick 06:14:38 -63.3 Dark Up 61.1 159.0 Up 05:59:38 - 06:29:38 -1598
Kingman/Dolan Springs 06:14:38 -63.3 Dark Up 61.2 158.5 Up 05:59:38 - 06:29:38 -1623
Laughlin/Bullhead City 06:14:40 -63.0 Dark Up 61.1 157.5 Up 05:59:40 - 06:29:40 -1634
Mohave Valley 06:14:40 -63.1 Dark Up 61.3 157.3 Up 05:59:40 - 06:29:40 -1661
Lake Havasu City 06:14:39 -63.5 Dark Up 61.8 157.5 Up 05:59:39 - 06:29:39 -1696
George/Scottsdale 06:14:30 -65.6 Dark Up 63.2 161.9 Up 05:59:30 - 06:29:30 -1730
Parker 06:14:39 -63.7 Dark Up 62.1 157.3 Up 05:59:39 - 06:29:39 -1731
Wildwood 06:14:55 -60.6 Dark Up 60.6 149.1 Up 05:59:55 - 06:29:55 -1807
Idyllwild 06:14:48 -62.1 Dark Up 61.6 152.3 Up 05:59:48 - 06:29:48 -1812
Calipatria 06:14:40 -63.3 Dark Up 62.6 154.0 Up 05:59:40 - 06:29:40 -1855
Yuma 06:14:40 -64.1 Dark Up 63.3 155.5 Up 05:59:40 - 06:29:40 -1882

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 00YH2, (2023/01/27 06:14UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 20.04  93
Alhena         06:37:42.8 +16:23:57  1.9 18.37  79
11 CMi         07:46:16.2 +10:46:05  5.2  2.81  96
PPM 153164     07:42:30.6 +07:28:07  8.0  0.74  95
PPM 153261     07:45:34.2 +07:43:53  9.0  0.34  96
PPM 153253     07:45:20.3 +08:00:57 11.0  0.18  96
00YH2          07:44:38.4 +07:59:06 16.6        96
Positions are for J2000

Event circumstances last updated at 2022/03/18 00:56:12 UT

Marc W. Buie, Southwest Research Institute

RECON