RECON: TNO occultation with 523719

Event between (523719) 14LM28 and star GA1380:04915301 with event index number of 2292445

Geocentric closest approach at 2023/02/18 07:08:50 UTC

J2000 position of star is 18:06:07.0 +48:41:58
Equinox of date position of star is 18:06:42.8 +48:42:10
Stellar brightness G=15.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 79 degrees from the moon. Moon is 6% illuminated.
Apparent brightness V=22.9

[RECON map]
Object is 18.5 AU from the Sun and 18.6 AU from the Earth.
Apparent velocity is 38.3 km/sec on the sky relative to the star, or, 10.2 arcsec/hr.
The 1-sigma error in the time of the event is 87 seconds.
The 1-sigma cross-track error in the shadow position is 2448 km.
The sky-plane scale is 13508.1 km/arcsec.

The object has an absolute magnitude Hv=9.9
Diameter=63.1 km assuming a 5% albedo -- 1.6 sec chord
Diameter=25.8 km assuming a 30% albedo -- 0.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 523719, (2023/02/18 07:09UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:43.3 +38:48:23  0.0 11.36  68
Etamin         17:57:08.6 +51:29:13  2.2  3.18  82
PPM 056752     18:03:45.2 +48:27:59  6.1  0.54  79
PPM 056808     18:06:53.8 +48:51:07  8.4  0.15  79
PPM 056812     18:07:03.8 +48:36:01 10.1  0.12  79
523719         18:06:43.0 +48:42:11 15.2        79
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 0.0 km RECON observability=0.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
George/Scottsdale 07:09:39 -66.8 Dark Down 4.5 31.5 Really Low 07:01:52 - 07:17:25 3046
Yuma 07:09:43 -66.8 Dark Down 2.5 30.0 Really Low 07:01:56 - 07:17:29 3008
Calipatria 07:09:45 -66.1 Dark Down 2.5 29.6 Really Low 07:01:59 - 07:17:32 2977
Lake Havasu City 07:09:45 -65.3 Dark Down 4.2 30.3 Really Low 07:01:58 - 07:17:31 2974
Patrick 07:09:45 -64.6 Dark Down 5.2 30.5 Really Low 07:01:58 - 07:17:31 2961
Laughlin/Bullhead City 07:09:46 -64.6 Dark Down 4.7 30.2 Really Low 07:02:00 - 07:17:33 2951
CU-SBO 07:09:35 -61.7 Dark Down 12.7 35.3 Really Low 07:01:49 - 07:17:22 2950
Nikitin 07:09:35 -61.6 Dark Down 12.8 35.3 Really Low 07:01:48 - 07:17:21 2948
Dunrhomin 07:09:35 -61.4 Dark Down 12.9 35.4 Really Low 07:01:49 - 07:17:22 2941
Idyllwild 07:09:48 -65.1 Dark Down 2.5 29.0 Really Low 07:02:02 - 07:17:35 2934
Wildwood 07:09:52 -63.9 Dark Down 2.1 28.0 Really Low 07:02:06 - 07:17:39 2872
Beatty 07:09:52 -62.3 Dark Down 5.3 29.1 Really Low 07:02:06 - 07:17:39 2851
Bishop 07:09:56 -61.3 Dark Down 5.1 28.2 Really Low 07:02:09 - 07:17:42 2794
Lee Vining 07:09:58 -60.5 Dark Down 5.3 27.9 Really Low 07:02:11 - 07:17:44 2757
Hawthorne 07:09:58 -60.2 Dark Down 6.0 28.2 Really Low 07:02:11 - 07:17:44 2753
Yerington 07:09:59 -59.6 Dark Down 6.2 27.9 Really Low 07:02:13 - 07:17:46 2724
Gardnerville 07:09:59 -59.4 Dark Down 6.0 27.6 Really Low 07:02:12 - 07:17:45 2709
Carson City 07:09:59 -59.2 Dark Down 6.2 27.6 Really Low 07:02:13 - 07:17:46 2701
Reno 07:10:01 -58.8 Dark Down 6.5 27.6 Really Low 07:02:15 - 07:17:48 2688
Portola 07:10:02 -58.4 Dark Down 6.5 27.2 Really Low 07:02:16 - 07:17:49 2660
Quincy 07:10:04 -58.1 Dark Down 6.5 27.0 Really Low 07:02:17 - 07:17:50 2642
Gimple 07:10:04 -57.9 Dark Down 6.7 27.0 Really Low 07:02:17 - 07:17:50 2638
Greenville 07:10:04 -57.9 Dark Down 6.6 27.0 Really Low 07:02:17 - 07:17:50 2635
Cedarville 07:10:04 -57.0 Dark Down 8.1 27.5 Really Low 07:02:17 - 07:17:50 2611
Fall River/Burney 07:10:05 -56.9 Dark Down 7.3 26.8 Really Low 07:02:19 - 07:17:52 2591
Klamath Falls 07:10:07 -55.8 Dark Down 8.2 26.6 Really Low 07:02:21 - 07:17:54 2539
Chiloquin 07:10:08 -55.5 Dark Down 8.5 26.6 Really Low 07:02:21 - 07:17:54 2524
Oregon Observatory 07:10:08 -54.5 Dark Down 9.8 26.9 Really Low 07:02:22 - 07:17:55 2487
Bend 07:10:08 -54.4 Dark Down 10.0 27.0 Really Low 07:02:22 - 07:17:55 2484
PNWRO 07:10:06 -53.5 Dark Down 12.5 28.6 Really Low 07:02:19 - 07:17:52 2468
Sisters 07:10:09 -54.1 Dark Down 10.1 26.9 Really Low 07:02:22 - 07:17:55 2467
Maupin 07:10:09 -53.5 Dark Down 11.1 27.3 Really Low 07:02:22 - 07:17:55 2445
The Dalles 07:10:09 -53.1 Dark Down 11.4 27.2 Really Low 07:02:23 - 07:17:56 2424
Toppenish/White Swan 07:10:09 -52.7 Dark Down 12.4 27.8 Really Low 07:02:22 - 07:17:55 2413
Yakima 07:10:09 -52.4 Dark Down 12.5 27.7 Really Low 07:02:23 - 07:17:56 2399
Ellensburg 07:10:10 -52.1 Dark Down 12.9 27.8 Really Low 07:02:23 - 07:17:56 2382
Wenatchee 07:10:10 -51.8 Dark Down 13.3 27.9 Really Low 07:02:23 - 07:17:56 2369
Sleaford 07:09:52 -49.6 Dark Down 22.2 37.2 Low 07:02:06 - 07:17:39 2368
Manson/Chelan 07:10:10 -51.4 Dark Down 13.8 28.1 Really Low 07:02:23 - 07:17:56 2352
Brewster 07:10:09 -51.3 Dark Down 14.1 28.3 Really Low 07:02:23 - 07:17:56 2351
Okanogan 07:10:09 -51.1 Dark Down 14.4 28.5 Really Low 07:02:23 - 07:17:56 2343
Anarchist Mountain Observatory 07:10:09 -50.6 Dark Down 15.0 28.7 Really Low 07:02:23 - 07:17:56 2319
Oliver 07:10:10 -50.4 Dark Down 15.1 28.6 Really Low 07:02:23 - 07:17:56 2305
Penticton 07:10:10 -50.1 Dark Down 15.4 28.7 Really Low 07:02:24 - 07:17:57 2288
Summerland 07:10:10 -50.0 Dark Down 15.4 28.6 Really Low 07:02:24 - 07:17:57 2282
Kelowna 07:10:10 -49.8 Dark Down 15.7 28.7 Really Low 07:02:24 - 07:17:57 2274
Peachland 07:10:11 -49.8 Dark Down 15.5 28.6 Really Low 07:02:24 - 07:17:57 2273
Victoria 07:10:16 -49.8 Dark Down 13.4 26.2 Really Low 07:02:29 - 07:18:02 2234
Kamloops 07:10:12 -48.8 Dark Down 16.2 28.3 Really Low 07:02:26 - 07:17:59 2212

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 523719, (2023/02/18 07:09UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 11.36  68
Etamin         17:56:36.3 +51:29:20  2.2  3.18  82
PPM 056752     18:03:09.0 +48:27:52  6.1  0.54  79
PPM 056808     18:06:18.0 +48:50:53  8.4  0.15  79
PPM 056812     18:06:27.7 +48:35:47 10.1  0.12  79
523719         18:06:07.0 +48:41:58 15.2        79
Positions are for J2000

Event circumstances last updated at 2023/01/09 03:33:14 UT

Marc W. Buie, Southwest Research Institute

RECON