RECON: TNO occultation with 05RH52

Event between 05RH52 and star GA1100:00013176 with event index number of 1959496

Geocentric closest approach at 2021/12/23 04:11:14 UTC

J2000 position of star is 00:06:19.9 +21:15:28
Equinox of date position of star is 00:07:27.1 +21:22:43
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 121 degrees from the moon. Moon is 86% illuminated.
TNO apparent brightness V=23.9

[RECON map]
TNO is 42.1 AU from the Sun and 42.0 AU from the Earth.
The TNO is moving 8.8 km/sec on the sky relative to the star, or, 1.0 arcsec/hr.
The 1-sigma error in the time of the event is 370 seconds.
The 1-sigma cross-track error in the shadow position is 4161 km.
The sky-plane scale is 30454.0 km/arcsec.

The TNO has an absolute magnitude Hv=7.5
Diameter=192.3 km assuming a 5% albedo -- 21.8 sec chord
Diameter=78.5 km assuming a 30% albedo -- 8.9 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 05RH52, (2021/12/23 04:11UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:10.9 +45:21:35  1.3 48.06 113
Algenib        00:14:22.2 +15:18:20  2.8  6.29 124
89Chi Peg      00:15:44.6 +20:19:44  4.8  2.20 120
PPM 089362     00:04:33.8 +20:47:13  7.9  0.90 122
PPM 089432     00:08:58.0 +20:57:59  9.3  0.54 121
PPM 089393     00:06:33.3 +21:41:29 10.3  0.38 121
05RH52         00:07:27.8 +21:22:48 15.4       121
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 2.4 sigma about the mid-time.
The median site spacing is 4.4 km RECON observability=1.0 and success probability=2.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Dunrhomin 04:10:10 -50.7 Dark Up 45.5 259.5 Up 03:55:10 - 04:25:10 9892
George/Scottsdale 04:11:17 -46.4 Dark Up 51.6 262.0 Up 03:56:17 - 04:26:17 9376
Patrick 04:10:51 -44.6 Dark Up 53.0 258.2 Up 03:55:51 - 04:25:51 9262
Kingman/Dolan Springs 04:10:54 -44.5 Dark Up 53.2 258.4 Up 03:55:54 - 04:25:54 9244
Lake Havasu City 04:11:01 -44.3 Dark Up 53.5 259.1 Up 03:56:01 - 04:26:01 9212
Parker 04:11:06 -44.3 Dark Up 53.5 259.6 Up 03:56:06 - 04:26:06 9207
Laughlin/Bullhead City 04:10:54 -44.0 Dark Up 53.6 258.0 Up 03:55:54 - 04:25:54 9206
Mohave Valley 04:10:58 -44.0 Dark Up 53.7 258.3 Up 03:55:58 - 04:25:58 9201
Henderson 04:10:41 -43.6 Dark Up 53.8 256.4 Up 03:55:41 - 04:25:41 9192
Blythe 04:11:11 -44.1 Dark Up 53.9 260.1 Up 03:56:11 - 04:26:11 9175
Yuma 04:11:22 -44.0 Dark Up 54.0 261.3 Up 03:56:22 - 04:26:22 9153
Indian Springs 04:10:33 -43.0 Dark Up 54.2 255.1 Up 03:55:33 - 04:25:33 9152
Calipatria 04:11:14 -43.3 Dark Up 54.7 260.1 Up 03:56:14 - 04:26:14 9096
Clarence Fulton 04:07:46 -38.6 Dark Up 51.1 234.0 Up 03:52:46 - 04:22:46 9088
Beatty 04:10:27 -42.2 Dark Up 55.0 253.6 Up 03:55:27 - 04:25:27 9081
Kelowna 04:07:50 -38.6 Dark Up 51.4 234.2 Up 03:52:50 - 04:22:50 9075
Anarchist Mountain Observatory 04:08:00 -38.8 Dark Up 51.9 235.2 Up 03:53:00 - 04:23:00 9074
PNWRO 04:08:35 -39.6 Dark Up 53.1 239.3 Up 03:53:35 - 04:23:35 9072
Tonopah 04:10:13 -41.7 Dark Up 55.0 251.6 Up 03:55:13 - 04:25:13 9070
Penticton 04:07:53 -38.6 Dark Up 51.7 234.4 Up 03:52:53 - 04:22:53 9067
Tonasket 04:08:03 -38.8 Dark Up 52.1 235.5 Up 03:53:03 - 04:23:03 9067
Oliver 04:07:57 -38.7 Dark Up 51.9 234.8 Up 03:52:57 - 04:22:57 9064
Summerland 04:07:52 -38.5 Dark Up 51.7 234.2 Up 03:52:52 - 04:22:52 9061
Pasco 04:08:32 -39.4 Dark Up 53.1 238.7 Up 03:53:32 - 04:23:32 9060
Peachland 04:07:50 -38.4 Dark Up 51.7 233.9 Up 03:52:50 - 04:22:50 9057
Okanogan 04:08:06 -38.8 Dark Up 52.3 235.7 Up 03:53:06 - 04:23:06 9054
Brewster 04:08:09 -38.7 Dark Up 52.6 235.7 Up 03:53:09 - 04:23:09 9039
Idyllwild 04:11:04 -42.3 Dark Up 55.6 258.2 Up 03:56:04 - 04:26:04 9021
Manson/Chelan 04:08:10 -38.5 Dark Up 52.9 235.5 Up 03:53:10 - 04:23:10 9014
Wenatchee 04:08:16 -38.4 Dark Up 53.3 235.8 Up 03:53:16 - 04:23:16 8998
Toppenish/White Swan 04:08:27 -38.5 Dark Up 53.8 237.0 Up 03:53:27 - 04:23:27 8981
Ellensburg 04:08:20 -38.4 Dark Up 53.6 236.0 Up 03:53:20 - 04:23:20 8979
Hawthorne 04:10:01 -40.6 Dark Up 56.0 249.5 Up 03:55:01 - 04:25:01 8977
Yakima 04:08:25 -38.4 Dark Up 53.8 236.5 Up 03:53:25 - 04:23:25 8973
Bishop 04:10:15 -40.8 Dark Up 56.1 251.4 Up 03:55:15 - 04:25:15 8972
Yerington 04:09:56 -40.1 Dark Up 56.2 248.2 Up 03:54:56 - 04:24:56 8948
Goldendale 04:08:32 -38.3 Dark Up 54.4 237.1 Up 03:53:32 - 04:23:32 8946
Lee Vining 04:10:07 -40.2 Dark Up 56.5 249.8 Up 03:55:07 - 04:25:07 8931
Cedarville 04:09:24 -39.2 Dark Up 56.0 243.5 Up 03:54:24 - 04:24:24 8923
Lakeview 04:09:16 -39.0 Dark Up 55.8 242.4 Up 03:54:16 - 04:24:16 8922
Maupin 04:08:38 -38.2 Dark Up 54.9 237.6 Up 03:53:38 - 04:23:38 8920
The Dalles 04:08:32 -38.1 Dark Up 54.7 236.9 Up 03:53:32 - 04:23:32 8919
Paisley 04:09:09 -38.8 Dark Up 55.7 241.5 Up 03:54:09 - 04:24:09 8917
Reno 04:09:46 -39.6 Dark Up 56.5 246.7 Up 03:54:46 - 04:24:46 8912
Carson City 04:09:52 -39.6 Dark Up 56.6 247.3 Up 03:54:52 - 04:24:52 8906
Gardnerville 04:09:56 -39.7 Dark Up 56.6 247.7 Up 03:54:56 - 04:24:56 8905
North Lake 04:09:01 -38.5 Dark Up 55.7 240.3 Up 03:54:01 - 04:24:01 8902
Redmond 04:08:48 -38.2 Dark Up 55.4 238.6 Up 03:53:48 - 04:23:48 8900
Bend 04:08:51 -38.1 Dark Up 55.6 238.7 Up 03:53:51 - 04:23:51 8887
Wildwood 04:10:55 -40.7 Dark Up 57.1 256.1 Up 03:55:55 - 04:25:55 8887
Oregon Observatory 04:08:53 -38.1 Dark Up 55.7 238.8 Up 03:53:53 - 04:23:53 8876
Sisters 04:08:48 -37.9 Dark Up 55.6 238.1 Up 03:53:48 - 04:23:48 8874
Portola 04:09:43 -39.1 Dark Up 56.8 245.6 Up 03:54:43 - 04:24:43 8871
Susanville 04:09:35 -38.9 Dark Up 56.7 244.5 Up 03:54:35 - 04:24:35 8869
La Pine/Gilchrist 04:08:55 -38.0 Dark Up 55.9 239.0 Up 03:53:55 - 04:23:55 8868
Gimple 04:09:37 -38.7 Dark Up 57.0 244.7 Up 03:54:37 - 04:24:37 8849
Greenville 04:09:38 -38.7 Dark Up 57.1 244.6 Up 03:54:38 - 04:24:38 8843
Quincy 04:09:40 -38.7 Dark Up 57.1 244.9 Up 03:54:40 - 04:24:40 8839
Fall River/Burney 04:09:25 -38.3 Dark Up 57.0 242.7 Up 03:54:25 - 04:24:25 8828
Chiloquin 04:09:06 -37.9 Dark Up 56.6 240.0 Up 03:54:06 - 04:24:06 8825
Klamath Falls 04:09:11 -37.9 Dark Up 56.7 240.6 Up 03:54:11 - 04:24:11 8824
Victoria 04:07:55 -36.2 Dark Up 54.3 230.5 Up 03:52:55 - 04:22:55 8820
CPSLO 04:10:36 -39.0 Dark Up 58.4 252.3 Up 03:55:36 - 04:25:36 8759

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 05RH52, (2021/12/23 04:11UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 48.06 113
Algenib        00:13:14.2 +15:11:01  2.8  6.29 124
89Chi Peg      00:14:36.3 +20:12:24  4.8  2.20 120
PPM 089362     00:03:26.0 +20:39:52  7.9  0.90 122
PPM 089432     00:07:50.0 +20:50:38  9.3  0.54 121
PPM 089393     00:05:25.4 +21:34:09 10.3  0.38 121
05RH52         00:06:19.9 +21:15:28 15.4       121
Positions are for J2000

Event circumstances last updated at 2021/10/02 02:36:31 UT

Marc W. Buie, Southwest Research Institute

RECON