RECON: TNO occultation with 00KL4

Event between 00KL4 and star GA0820:19319039 with event index number of 2762036

Geocentric closest approach at 2029/05/18 09:26:13 UTC

J2000 position of star is 19:03:36.2 -07:26:29
Equinox of date position of star is 19:04:48.1 -07:24:26
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 165 degrees from the moon. Moon is 22% illuminated.
TNO apparent brightness V=23.5

[RECON map]
TNO is 38.6 AU from the Sun and 38.0 AU from the Earth.
The TNO is moving 15.1 km/sec on the sky relative to the star, or, 2.0 arcsec/hr.
The 1-sigma error in the time of the event is 1559 seconds.
The 1-sigma cross-track error in the shadow position is 5270 km.
The sky-plane scale is 27540.9 km/arcsec.

The TNO has an absolute magnitude Hv=7.5
Diameter=187.9 km assuming a 5% albedo -- 12.4 sec chord
Diameter=76.7 km assuming a 30% albedo -- 5.1 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 00KL4, (2029/05/18 09:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.8 -26:29:40  0.9 41.23 136
Nunki          18:57:05.1 -26:15:27  2.0 18.96 168
12 Aql         19:03:14.9 -05:41:44  3.9  1.77 163
PPM 202468     19:04:24.8 -07:40:52  8.4  0.34 165
PPM 202483     19:05:04.5 -07:19:07  8.9  0.08 165
00KL4          19:05:11.5 -07:23:45 15.4       165
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 0.6 sigma about the mid-time.
The median site spacing is 22.4 km RECON observability=1.0 and success probability=5.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 09:28:20 -11.3 NT Down 29.4 164.7 Low 09:13:20 - 09:43:20 6577
Kamloops 09:29:20 -16.8 AT Down 27.2 148.9 Low 09:14:20 - 09:44:20 6271
Kelowna 09:29:18 -17.4 AT Down 28.2 149.7 Low 09:14:18 - 09:44:18 6230
Peachland 09:29:18 -17.6 AT Down 28.2 149.3 Low 09:14:18 - 09:44:18 6218
Summerland 09:29:19 -17.7 AT Down 28.3 149.4 Low 09:14:19 - 09:44:19 6209
Penticton 09:29:19 -17.7 AT Down 28.4 149.5 Low 09:14:19 - 09:44:19 6207
Oliver 09:29:19 -18.0 Dark Down 28.7 149.4 Low 09:14:19 - 09:44:19 6183
Anarchist Mountain Observatory 09:29:18 -18.1 Dark Down 28.9 149.5 Low 09:14:18 - 09:44:18 6175
Tonasket 09:29:20 -18.4 Dark Down 29.2 149.4 Low 09:14:20 - 09:44:20 6152
Okanogan 09:29:20 -18.8 Dark Down 29.4 149.1 Low 09:14:20 - 09:44:20 6126
Brewster 09:29:22 -19.1 Dark Down 29.6 148.8 Low 09:14:22 - 09:44:22 6103
Manson/Chelan 09:29:23 -19.4 Dark Down 29.6 148.4 Low 09:14:23 - 09:44:23 6083
Victoria 09:29:36 -19.6 Dark Down 27.9 145.2 Low 09:14:36 - 09:44:36 6074
Wenatchee 09:29:26 -19.8 Dark Down 30.0 148.1 Low 09:14:26 - 09:44:26 6046
Ellensburg 09:29:27 -20.3 Dark Down 30.3 147.7 Up 09:14:27 - 09:44:27 6013
Yakima 09:29:27 -20.7 Dark Down 30.6 147.6 Up 09:14:27 - 09:44:27 5983
Toppenish/White Swan 09:29:27 -20.8 Dark Down 30.8 147.7 Up 09:14:27 - 09:44:27 5971
PNWRO 09:29:22 -20.7 Dark Down 31.7 149.2 Up 09:14:22 - 09:44:22 5969
Goldendale 09:29:30 -21.4 Dark Down 31.2 147.1 Up 09:14:30 - 09:44:30 5923
The Dalles 09:29:33 -21.7 Dark Down 31.2 146.6 Up 09:14:33 - 09:44:33 5900
Maupin 09:29:32 -22.1 Dark Down 31.6 146.6 Up 09:14:32 - 09:44:32 5871
Sisters 09:29:37 -23.0 Dark Down 32.1 145.8 Up 09:14:37 - 09:44:37 5796
Bend 09:29:34 -23.2 Dark Down 32.4 145.9 Up 09:14:34 - 09:44:34 5783
Dunrhomin 09:28:20 -20.5 Dark Down 40.9 163.3 Up 09:13:20 - 09:43:20 5780
Oregon Observatory 09:29:36 -23.4 Dark Down 32.5 145.7 Up 09:14:36 - 09:44:36 5767
CU-SBO 09:28:20 -20.8 Dark Down 41.1 163.1 Up 09:13:20 - 09:43:20 5759
North Lake 09:29:34 -23.8 Dark Down 33.3 146.1 Up 09:14:34 - 09:44:34 5728
Chiloquin 09:29:39 -24.7 Dark Down 33.4 144.8 Up 09:14:39 - 09:44:39 5658
Lakeview 09:29:34 -24.6 Dark Down 34.4 146.3 Up 09:14:34 - 09:44:34 5656
Klamath Falls 09:29:39 -25.0 Dark Down 33.8 144.8 Up 09:14:39 - 09:44:39 5633
Cedarville 09:29:33 -25.2 Dark Down 35.0 146.2 Up 09:14:33 - 09:44:33 5607
Fall River/Burney 09:29:39 -26.0 Dark Down 34.9 144.7 Up 09:14:39 - 09:44:39 5546
Susanville 09:29:37 -26.3 Dark Down 35.7 145.3 Up 09:14:37 - 09:44:37 5509
Gimple 09:29:38 -26.7 Dark Down 35.9 144.9 Up 09:14:38 - 09:44:38 5483
Greenville 09:29:38 -26.7 Dark Down 35.8 144.8 Up 09:14:38 - 09:44:38 5481
Quincy 09:29:39 -26.9 Dark Down 36.0 144.8 Up 09:14:39 - 09:44:39 5465
Portola 09:29:37 -26.8 Dark Down 36.3 145.2 Up 09:14:37 - 09:44:37 5464
Reno 09:29:34 -26.9 Dark Down 36.8 145.8 Up 09:14:34 - 09:44:34 5455
Carson City 09:29:34 -27.2 Dark Down 37.1 145.7 Up 09:14:34 - 09:44:34 5426
Yerington 09:29:31 -27.2 Dark Down 37.5 146.3 Up 09:14:31 - 09:44:31 5422
Gardnerville 09:29:35 -27.4 Dark Down 37.3 145.7 Up 09:14:35 - 09:44:35 5407
Hawthorne 09:29:29 -27.4 Dark Down 38.1 146.7 Up 09:14:29 - 09:44:29 5394
Tonopah 09:29:23 -27.3 Dark Down 39.1 148.1 Up 09:14:23 - 09:44:23 5383
Lee Vining 09:29:32 -28.1 Dark Down 38.4 145.9 Up 09:14:32 - 09:44:32 5338
Bishop 09:29:29 -28.4 Dark Down 39.2 146.5 Up 09:14:29 - 09:44:29 5302
Beatty 09:29:21 -28.2 Dark Down 40.3 148.1 Up 09:14:21 - 09:44:21 5295
Indian Springs 09:29:17 -28.1 Dark Down 41.0 149.2 Up 09:14:17 - 09:44:17 5288
Henderson 09:29:12 -28.2 Dark Down 41.8 149.8 Up 09:14:12 - 09:44:12 5257
Patrick 09:29:08 -28.3 Dark Down 42.7 150.9 Up 09:14:08 - 09:44:08 5226
Kingman/Dolan Springs 09:29:08 -28.6 Dark Down 42.9 150.5 Up 09:14:08 - 09:44:08 5203
Laughlin/Bullhead City 09:29:11 -28.8 Dark Down 42.7 149.9 Up 09:14:11 - 09:44:11 5190
Mohave Valley 09:29:11 -29.1 Dark Down 42.9 149.8 Up 09:14:11 - 09:44:11 5167
Lake Havasu City 09:29:10 -29.3 Dark Down 43.4 149.9 Up 09:14:10 - 09:44:10 5138
George/Scottsdale 09:28:58 -28.9 Dark Down 45.0 152.6 Up 09:13:58 - 09:43:58 5120
Parker 09:29:11 -29.6 Dark Down 43.7 149.8 Up 09:14:11 - 09:44:11 5108
Idyllwild 09:29:24 -30.9 Dark Down 43.0 146.7 Up 09:14:24 - 09:44:24 5025
Wildwood 09:29:33 -31.3 Dark Down 41.8 144.7 Up 09:14:33 - 09:44:33 5017
Calipatria 09:29:17 -31.0 Dark Down 44.0 147.8 Up 09:14:17 - 09:44:17 4994
Yuma 09:29:13 -31.0 Dark Down 44.8 148.6 Up 09:14:13 - 09:44:13 4974

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 00KL4, (2029/05/18 09:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 41.23 136
Nunki          18:55:15.9 -26:17:49  2.0 18.96 168
12 Aql         19:01:40.8 -05:44:22  3.9  1.77 163
PPM 202468     19:02:49.3 -07:43:33  8.4  0.34 165
PPM 202483     19:03:29.3 -07:21:50  8.9  0.08 165
00KL4          19:03:36.2 -07:26:29 15.4       165
Positions are for J2000

Event circumstances last updated at 2022/02/28 00:09:54 UT

Marc W. Buie, Southwest Research Institute

RECON