RECON: TNO occultation with 13AR183

Event between 13AR183 and star GA1000:03368522 with event index number of 313694

Geocentric closest approach at 2020/02/02 09:42:27 UTC

J2000 position of star is 09:40:07.1 +11:08:33
Equinox of date position of star is 09:41:10.9 +11:03:07
Stellar brightness G=13.0, use SENSEUP=32
Star is 97 degrees from the moon. Moon is 53% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 47.8 AU from the Sun and 46.9 AU from the Earth.
The TNO is moving 25.1 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 203 seconds.
The 1-sigma cross-track error in the shadow position is 2205 km.
The sky-plane scale is 33985.0 km/arcsec.

The TNO has an absolute magnitude Hv=6.0
Diameter=380.2 km assuming a 5% albedo -- 15.1 sec chord
Diameter=155.2 km assuming a 30% albedo -- 6.2 sec chord
Dynamical classification is 11:3EEEEEEEE
 
 
 
 
 
 

Star training set for 13AR183, (2020/02/02 09:42UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:26.4 +11:52:06  1.3  6.97 103
14Omi Leo      09:42:13.3 +09:48:00  3.5  1.28  97
PPM 126656     09:39:50.3 +10:41:09  7.1  0.49  96
PPM 126673     09:40:25.9 +10:57:46  9.7  0.21  97
13AR183        09:41:11.9 +11:03:03 13.0        97
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 4.4 sigma about the mid-time.
The median site spacing is 17.5 km RECON observability=1.0 and success probability=0.1%
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 09:42:44 -51.9 Dark Down 49.4 200.4 Up 09:27:44 - 09:57:44 10958
Kelowna 09:42:45 -52.3 Dark Down 49.8 200.4 Up 09:27:45 - 09:57:45 10925
Summerland 09:42:45 -52.6 Dark Down 50.1 200.2 Up 09:27:45 - 09:57:45 10900
Penticton 09:42:44 -52.6 Dark Down 50.1 200.4 Up 09:27:44 - 09:57:44 10898
Oliver 09:42:43 -52.8 Dark Down 50.4 200.5 Up 09:27:43 - 09:57:43 10871
Anarchist Mountain Observatory 09:42:43 -52.9 Dark Down 50.5 200.9 Up 09:27:43 - 09:57:43 10863
Tonasket 09:42:43 -53.2 Dark Down 50.8 200.9 Up 09:27:43 - 09:57:43 10838
Okanogan 09:42:43 -53.5 Dark Down 51.2 200.8 Up 09:27:43 - 09:57:43 10808
Brewster 09:42:43 -53.8 Dark Down 51.5 200.6 Up 09:27:43 - 09:57:43 10781
Manson/Chelan 09:42:43 -54.1 Dark Down 51.8 200.2 Up 09:27:43 - 09:57:43 10755
Entiat 09:42:43 -54.3 Dark Down 52.0 200.1 Up 09:27:43 - 09:57:43 10736
Victoria 09:42:51 -54.8 Dark Down 51.8 194.9 Up 09:27:51 - 09:57:51 10718
Wenatchee 09:42:43 -54.6 Dark Down 52.3 200.1 Up 09:27:43 - 09:57:43 10713
Ellensburg 09:42:43 -55.0 Dark Down 52.7 199.9 Up 09:27:43 - 09:57:43 10675
Pasco 09:42:36 -54.9 Dark Down 53.0 202.5 Up 09:27:36 - 09:57:36 10656
PNWRO 09:42:35 -55.0 Dark Down 53.2 203.0 Up 09:27:35 - 09:57:35 10643
Yakima 09:42:43 -55.3 Dark Down 53.1 200.1 Up 09:27:43 - 09:57:43 10642
Toppenish/White Swan 09:42:43 -55.4 Dark Down 53.2 200.5 Up 09:27:43 - 09:57:43 10630
Niwot 09:41:45 -50.6 Dark Down 52.3 227.4 Up 09:26:45 - 09:56:45 10593
SwRI 09:41:43 -50.7 Dark Down 52.4 227.4 Up 09:26:43 - 09:56:43 10581
Goldendale 09:42:43 -56.0 Dark Down 53.9 200.0 Up 09:27:43 - 09:57:43 10574
The Dalles 09:42:43 -56.4 Dark Down 54.2 199.6 Up 09:27:43 - 09:57:43 10545
Maupin 09:42:43 -56.6 Dark Down 54.5 199.9 Up 09:27:43 - 09:57:43 10514
Redmond 09:42:43 -57.4 Dark Down 55.4 200.2 Up 09:27:43 - 09:57:43 10438
Sisters 09:42:43 -57.5 Dark Down 55.5 199.5 Up 09:27:43 - 09:57:43 10428
Bend 09:42:43 -57.6 Dark Down 55.6 200.1 Up 09:27:43 - 09:57:43 10416
Oregon Observatory 09:42:43 -57.8 Dark Down 55.8 200.0 Up 09:27:43 - 09:57:43 10398
La Pine/Gilchrist 09:42:43 -58.0 Dark Down 56.0 200.0 Up 09:27:43 - 09:57:43 10380
North Lake 09:42:36 -58.0 Dark Down 56.3 201.2 Up 09:27:36 - 09:57:36 10361
Paisley 09:42:34 -58.3 Dark Down 56.7 202.1 Up 09:27:34 - 09:57:34 10325
Lakeview 09:42:31 -58.6 Dark Down 57.1 202.7 Up 09:27:31 - 09:57:31 10288
Klamath Falls 09:42:36 -59.2 Dark Down 57.5 200.2 Up 09:27:36 - 09:57:36 10249
Cedarville 09:42:30 -58.9 Dark Down 57.7 203.4 Up 09:27:30 - 09:57:30 10238
Fall River/Burney 09:42:34 -59.9 Dark Down 58.5 201.5 Up 09:27:34 - 09:57:34 10159
Susanville 09:42:30 -60.0 Dark Down 58.9 203.2 Up 09:27:30 - 09:57:30 10128
Gimple 09:42:29 -60.3 Dark Down 59.2 203.0 Up 09:27:29 - 09:57:29 10097
Greenville 09:42:30 -60.4 Dark Down 59.2 202.9 Up 09:27:30 - 09:57:30 10095
Portola 09:42:29 -60.3 Dark Down 59.4 204.0 Up 09:27:29 - 09:57:29 10081
Reno 09:42:27 -60.2 Dark Down 59.4 205.3 Up 09:27:27 - 09:57:27 10079
Quincy 09:42:29 -60.5 Dark Down 59.4 203.0 Up 09:27:29 - 09:57:29 10077
Yerington 09:42:22 -60.2 Dark Down 59.7 206.9 Up 09:27:22 - 09:57:22 10051
Carson City 09:42:26 -60.4 Dark Down 59.7 205.6 Up 09:27:26 - 09:57:26 10048
Tonopah 09:42:16 -59.6 Dark Down 59.8 211.1 Up 09:27:16 - 09:57:16 10033
Gardnerville 09:42:23 -60.5 Dark Down 59.9 205.9 Up 09:27:23 - 09:57:23 10028
Hawthorne 09:42:21 -60.1 Dark Down 59.9 208.2 Up 09:27:21 - 09:57:21 10027
Lee Vining 09:42:21 -60.8 Dark Down 60.6 207.8 Up 09:27:21 - 09:57:21 9963
Indian Springs 09:42:06 -59.5 Dark Down 60.4 215.2 Up 09:27:06 - 09:57:06 9953
Beatty 09:42:10 -60.0 Dark Down 60.6 213.0 Up 09:27:10 - 09:57:10 9946
Bishop 09:42:18 -60.7 Dark Down 60.8 209.6 Up 09:27:18 - 09:57:18 9933
Henderson 09:42:04 -59.3 Dark Down 60.5 216.9 Up 09:27:04 - 09:57:04 9928
Patrick 09:42:00 -58.8 Dark Down 60.4 219.5 Up 09:27:00 - 09:57:00 9911
DCO 09:41:57 -58.5 Dark Down 60.3 221.0 Up 09:26:57 - 09:56:57 9908
Kingman/Dolan Springs 09:41:59 -59.1 Dark Down 60.7 219.4 Up 09:26:59 - 09:56:59 9885
Searchlight/Boulder City 09:42:01 -59.5 Dark Down 60.9 217.6 Up 09:27:01 - 09:57:01 9880
Laughlin/Bullhead City 09:42:01 -59.4 Dark Down 61.0 218.6 Up 09:27:01 - 09:57:01 9865
Mohave Valley 09:42:00 -59.6 Dark Down 61.2 218.9 Up 09:27:00 - 09:57:00 9841
George/Scottsdale 09:41:49 -58.1 Dark Down 60.6 224.7 Up 09:26:49 - 09:56:49 9830
Lake Havasu City 09:41:59 -59.6 Dark Down 61.4 219.8 Up 09:26:59 - 09:56:59 9814
Parker 09:41:58 -59.7 Dark Down 61.6 220.2 Up 09:26:58 - 09:56:58 9784
Blythe 09:41:58 -60.2 Dark Down 62.2 220.3 Up 09:26:58 - 09:56:58 9726
CPSLO 09:42:22 -63.4 Dark Down 63.5 207.1 Up 09:27:22 - 09:57:22 9674
Idyllwild 09:42:06 -61.7 Dark Down 63.2 216.4 Up 09:27:06 - 09:57:06 9665
Calipatria 09:41:59 -61.1 Dark Down 63.0 219.3 Up 09:26:59 - 09:56:59 9649
Yuma 09:41:56 -60.6 Dark Down 62.9 221.4 Up 09:26:56 - 09:56:56 9641
Wildwood 09:42:11 -62.8 Dark Down 63.7 212.4 Up 09:27:11 - 09:57:11 9633

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 13AR183, (2020/02/02 09:42UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:22.0 +11:58:02  1.3  6.97 103
14Omi Leo      09:41:08.8 +09:53:32  3.5  1.28  97
PPM 126656     09:38:45.6 +10:46:38  7.1  0.49  96
PPM 126673     09:39:21.1 +11:03:16  9.7  0.21  97
13AR183        09:40:07.1 +11:08:33 13.0        97
Positions are for J2000

Event circumstances last updated at 2019/10/15 22:07:02 UT

Marc W. Buie, Southwest Research Institute

RECON