RECON: TNO occultation with 13AS183

Event between 13AS183 and star GA1060:03267266 with event index number of 313619

Geocentric closest approach at 2019/03/03 06:58:08 UTC

J2000 position of star is 09:40:38.0 +16:53:07
Equinox of date position of star is 09:41:40.8 +16:47:54
Stellar brightness G=13.6, use SENSEUP=64
Star is 164 degrees from the moon. Moon is 10% illuminated.
TNO apparent brightness V=22.7

[RECON map]
TNO is 39.9 AU from the Sun and 38.9 AU from the Earth.
The TNO is moving 23.4 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 90 seconds.
The 1-sigma cross-track error in the shadow position is 1753 km.
The sky-plane scale is 28234.1 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=300.6 km assuming a 5% albedo -- 11.9 sec chord
Diameter=122.7 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 13AS183, (2019/03/03 06:58UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:23.5 +11:52:22  1.3  8.32 156
16Psi Leo      09:44:46.4 +13:55:59  5.3  2.96 162
PPM 126714     09:43:22.2 +16:59:38  7.9  0.45 164
PPM 126684     09:41:28.1 +16:52:50  9.1  0.10 164
13AS183        09:41:41.3 +16:47:51 13.6       164
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 17.8 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)
Kelowna 06:59:04 -44.5 Dark Down 57.0 181.7 Up 06:51:02 - 07:07:06 -4717
Summerland 06:59:05 -44.5 Dark Down 57.0 181.1 Up 06:51:03 - 07:07:07 -4731
Penticton 06:59:05 -44.8 Dark Down 57.3 181.5 Up 06:51:03 - 07:07:07 -4753
Okanagan Falls 06:59:04 -45.0 Dark Down 57.5 181.4 Up 06:51:02 - 07:07:06 -4770
Oliver 06:59:04 -45.1 Dark Down 57.7 181.5 Up 06:51:02 - 07:07:06 -4783
Anarchist Mountain Observatory 06:59:04 -45.4 Dark Down 57.9 181.8 Up 06:51:02 - 07:07:06 -4793
Oroville 06:59:04 -45.4 Dark Down 57.9 181.7 Up 06:51:02 - 07:07:06 -4801
Tonasket 06:59:02 -45.6 Dark Down 58.2 181.7 Up 06:51:00 - 07:07:04 -4821
Okanogan 06:59:02 -45.9 Dark Down 58.5 181.4 Up 06:51:00 - 07:07:04 -4855
Brewster 06:59:02 -46.1 Dark Down 58.8 181.1 Up 06:51:00 - 07:07:04 -4884
Manson/Chelan 06:59:03 -46.1 Dark Down 59.0 180.4 Up 06:51:01 - 07:07:05 -4913
Entiat 06:59:03 -46.3 Dark Down 59.2 180.3 Up 06:51:01 - 07:07:05 -4935
Wenatchee 06:59:03 -46.5 Dark Down 59.5 180.1 Up 06:51:01 - 07:07:05 -4960
Ellensburg 06:59:03 -46.8 Dark Down 59.9 179.7 Up 06:51:01 - 07:07:05 -5003
Pasco 06:58:58 -47.9 Dark Down 60.6 182.4 Up 06:50:56 - 07:07:00 -5028
Yakima 06:59:02 -47.2 Dark Down 60.3 179.6 Up 06:51:00 - 07:07:04 -5040
PNWRO 06:58:57 -48.2 Dark Down 60.9 182.9 Up 06:50:55 - 07:06:59 -5043
Toppenish/White Swan 06:59:02 -47.4 Dark Down 60.5 180.0 Up 06:51:00 - 07:07:04 -5054
George/Umatilla 06:58:58 -48.1 Dark Down 61.0 182.0 Up 06:50:56 - 07:07:00 -5064
Niwot 06:58:03 -56.6 Dark Down 63.4 213.5 Up 06:50:01 - 07:06:05 -5099
Goldendale 06:59:02 -47.7 Dark Down 61.1 179.1 Up 06:51:00 - 07:07:04 -5117
The Dalles 06:59:03 -47.8 Dark Down 61.3 178.4 Up 06:51:01 - 07:07:05 -5148
Maupin 06:59:02 -48.2 Dark Down 61.7 178.6 Up 06:51:00 - 07:07:04 -5183
Madras/Culver 06:59:02 -48.7 Dark Down 62.2 178.5 Up 06:51:00 - 07:07:04 -5234
Redmond 06:59:00 -49.0 Dark Down 62.6 178.3 Up 06:50:58 - 07:07:02 -5268
Sisters 06:59:04 -48.8 Dark Down 62.6 177.5 Up 06:51:02 - 07:07:06 -5278
Bend 06:59:00 -49.1 Dark Down 62.8 178.0 Up 06:50:58 - 07:07:02 -5292
Oregon Observatory 06:59:02 -49.2 Dark Down 63.0 177.7 Up 06:51:00 - 07:07:04 -5312
La Pine/Gilchrist 06:59:01 -49.4 Dark Down 63.2 177.6 Up 06:50:59 - 07:07:03 -5332
North Lake 06:58:58 -49.9 Dark Down 63.6 178.8 Up 06:50:56 - 07:07:00 -5354
Paisley 06:58:56 -50.6 Dark Down 64.2 179.6 Up 06:50:54 - 07:06:58 -5394
Lakeview 06:58:56 -51.1 Dark Down 64.7 180.0 Up 06:50:54 - 07:06:58 -5435
Chiloquin 06:59:01 -50.2 Dark Down 64.3 176.7 Up 06:50:59 - 07:07:03 -5447
Klamath Falls 06:59:00 -50.5 Dark Down 64.6 176.8 Up 06:50:58 - 07:07:02 -5476
Cedarville 06:58:54 -51.7 Dark Down 65.4 180.4 Up 06:50:52 - 07:06:56 -5491
Tulelake 06:58:58 -50.8 Dark Down 64.9 177.5 Up 06:50:56 - 07:07:00 -5492
Fall River/Burney 06:58:57 -51.6 Dark Down 65.8 177.5 Up 06:50:55 - 07:06:59 -5575
Susanville 06:58:53 -52.5 Dark Down 66.5 179.2 Up 06:50:51 - 07:06:55 -5611
Gimple 06:58:54 -52.6 Dark Down 66.7 178.7 Up 06:50:52 - 07:06:56 -5644
Greenville 06:58:54 -52.6 Dark Down 66.7 178.5 Up 06:50:52 - 07:06:56 -5646
Portola 06:58:53 -53.0 Dark Down 67.1 179.7 Up 06:50:51 - 07:06:55 -5662
Quincy 06:58:54 -52.7 Dark Down 66.9 178.5 Up 06:50:52 - 07:06:56 -5665
Reno 06:58:49 -53.5 Dark Down 67.3 181.2 Up 06:50:47 - 07:06:51 -5666
Yerington 06:58:47 -54.3 Dark Down 67.9 182.9 Up 06:50:45 - 07:06:49 -5696
Carson City 06:58:48 -53.8 Dark Down 67.7 181.3 Up 06:50:46 - 07:06:50 -5699
Tonopah 06:58:38 -55.8 Dark Down 68.7 188.1 Up 06:50:36 - 07:06:40 -5718
Gardnerville 06:58:47 -54.1 Dark Down 67.9 181.4 Up 06:50:45 - 07:06:49 -5721
Hawthorne 06:58:43 -54.9 Dark Down 68.3 184.3 Up 06:50:41 - 07:06:45 -5723
Lee Vining 06:58:45 -55.2 Dark Down 68.9 183.1 Up 06:50:43 - 07:06:47 -5793
Indian Springs 06:58:30 -57.7 Dark Down 69.9 192.8 Up 06:50:28 - 07:06:32 -5804
Beatty 06:58:34 -57.0 Dark Down 69.7 189.7 Up 06:50:32 - 07:06:36 -5812
Bishop 06:58:41 -56.0 Dark Down 69.5 185.2 Up 06:50:39 - 07:06:43 -5825
Henderson 06:58:27 -58.4 Dark Down 70.3 195.0 Up 06:50:25 - 07:06:29 -5830
Patrick 06:58:22 -59.3 Dark Down 70.6 198.6 Up 06:50:20 - 07:06:24 -5849
DCO 06:58:20 -59.9 Dark Down 70.7 200.8 Up 06:50:18 - 07:06:22 -5851
Kingman/Dolan Springs 06:58:22 -59.5 Dark Down 70.9 198.2 Up 06:50:20 - 07:06:24 -5877
Searchlight/Boulder City 06:58:26 -58.9 Dark Down 70.8 195.6 Up 06:50:24 - 07:06:28 -5882
Lone Pine 06:58:38 -56.7 Dark Down 70.2 186.3 Up 06:50:36 - 07:06:40 -5886
Laughlin/Bullhead City 06:58:23 -59.3 Dark Down 71.0 196.8 Up 06:50:21 - 07:06:25 -5898
Mohave Valley 06:58:23 -59.6 Dark Down 71.3 197.1 Up 06:50:21 - 07:06:25 -5924
Lake Havasu City 06:58:21 -60.0 Dark Down 71.6 198.1 Up 06:50:19 - 07:06:23 -5953
Parker 06:58:20 -60.3 Dark Down 71.9 198.5 Up 06:50:18 - 07:06:22 -5985
Blythe 06:58:21 -60.7 Dark Down 72.5 198.2 Up 06:50:19 - 07:06:23 -6046
CPSLO 06:58:44 -56.7 Dark Down 71.6 178.9 Up 06:50:42 - 07:06:46 -6101
Idyllwild 06:58:28 -59.8 Dark Down 72.9 191.5 Up 06:50:26 - 07:06:30 -6114
Calipatria 06:58:23 -60.8 Dark Down 73.2 195.7 Up 06:50:21 - 07:06:25 -6129
Yuma 06:58:18 -61.5 Dark Down 73.4 199.0 Up 06:50:16 - 07:06:20 -6137
Wildwood 06:58:36 -58.6 Dark Down 72.7 185.4 Up 06:50:34 - 07:06:38 -6147

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 13AS183, (2019/03/03 06:58UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:22.0 +11:58:02  1.3  8.32 156
16Psi Leo      09:43:43.9 +14:01:18  5.3  2.96 162
PPM 126714     09:42:18.8 +17:04:55  7.9  0.45 164
PPM 126684     09:40:24.7 +16:58:05  9.1  0.10 164
13AS183        09:40:38.0 +16:53:07 13.6       164
Positions are for J2000

Event circumstances last updated at 2019/01/03 19:48:30 UT

Marc W. Buie, Southwest Research Institute

RECON