RECON: TNO occultation with 523718

Event between (523718) 14KZ101 and star GA0840:05723170 with event index number of 307010

Geocentric closest approach at 2019/06/24 06:01:56 UTC

J2000 position of star is 17:21:47.6 -04:08:17
Equinox of date position of star is 17:22:49.2 -04:09:21
Stellar brightness G=16.3, use SENSEUP=128
Star is 91 degrees from the moon. Moon is 61% illuminated.
TNO apparent brightness V=21.8

[RECON map]
TNO is 34.3 AU from the Sun and 33.3 AU from the Earth.
The TNO is moving 22.1 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 93 seconds.
The 1-sigma cross-track error in the shadow position is 1245 km.
The sky-plane scale is 24168.1 km/arcsec.

The TNO has an absolute magnitude Hv=6.4
Diameter=316.2 km assuming a 5% albedo -- 14.3 sec chord
Diameter=129.1 km assuming a 30% albedo -- 5.8 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 523718, (2019/06/24 06:02UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.3 -26:28:25  0.9 25.58 100
60Bet Oph      17:44:26.1 +04:33:38  2.8 10.25  87
PPM 200658     17:27:40.0 -05:06:08  4.5  1.53  90
PPM 200558     17:20:51.9 -04:04:04  8.1  0.50  92
PPM 200603     17:23:46.8 -04:13:42  9.2  0.25  91
523718         17:22:49.4 -04:09:21 16.3        91
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 16.4 km RECON observability=0.8 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)
Kelowna 06:02:43 -12.2 AT Down 34.0 159.4 Up 05:54:30 - 06:10:55 8853
Summerland 06:02:44 -12.4 AT Down 34.2 159.0 Up 05:54:31 - 06:10:56 8834
Penticton 06:02:44 -12.5 AT Down 34.3 159.1 Up 05:54:32 - 06:10:57 8829
Okanagan Falls 06:02:44 -12.7 AT Down 34.5 159.0 Up 05:54:32 - 06:10:57 8817
Oliver 06:02:44 -12.8 AT Down 34.6 159.0 Up 05:54:31 - 06:10:56 8806
Anarchist Mountain Observatory 06:02:44 -13.0 AT Down 34.8 159.2 Up 05:54:31 - 06:10:56 8795
Oroville 06:02:44 -13.1 AT Down 34.9 159.1 Up 05:54:32 - 06:10:57 8790
Tonasket 06:02:44 -13.3 AT Down 35.1 159.0 Up 05:54:32 - 06:10:57 8774
Okanogan 06:02:45 -13.5 AT Down 35.4 158.8 Up 05:54:33 - 06:10:58 8752
Brewster 06:02:46 -13.7 AT Down 35.6 158.4 Up 05:54:34 - 06:10:59 8734
Manson/Chelan 06:02:48 -13.8 AT Down 35.7 158.0 Up 05:54:35 - 06:11:00 8720
Entiat 06:02:48 -13.9 AT Down 35.9 157.8 Up 05:54:36 - 06:11:01 8705
Wenatchee 06:02:49 -14.1 AT Down 36.1 157.6 Up 05:54:36 - 06:11:01 8688
Ellensburg 06:02:50 -14.4 AT Down 36.4 157.3 Up 05:54:38 - 06:11:03 8660
Yakima 06:02:50 -14.8 AT Down 36.8 157.1 Up 05:54:38 - 06:11:03 8632
Toppenish/White Swan 06:02:50 -15.0 AT Down 37.0 157.3 Up 05:54:37 - 06:11:02 8616
Pasco 06:02:46 -15.5 AT Down 37.5 158.7 Up 05:54:34 - 06:10:59 8607
PNWRO 06:02:46 -15.8 AT Down 37.7 159.0 Up 05:54:33 - 06:10:58 8589
George/Umatilla 06:02:47 -15.8 AT Down 37.7 158.4 Up 05:54:35 - 06:11:00 8583
Goldendale 06:02:52 -15.4 AT Down 37.4 156.6 Up 05:54:40 - 06:11:05 8578
The Dalles 06:02:54 -15.4 AT Down 37.5 156.1 Up 05:54:41 - 06:11:06 8562
Maupin 06:02:54 -15.8 AT Down 37.9 156.1 Up 05:54:41 - 06:11:06 8532
Madras/Culver 06:02:55 -16.3 AT Down 38.4 155.9 Up 05:54:42 - 06:11:07 8493
Sisters 06:02:57 -16.4 AT Down 38.6 155.2 Up 05:54:44 - 06:11:09 8469
Redmond 06:02:55 -16.6 AT Down 38.7 155.7 Up 05:54:43 - 06:11:08 8467
Bend 06:02:56 -16.7 AT Down 38.9 155.5 Up 05:54:44 - 06:11:09 8451
Oregon Observatory 06:02:57 -16.8 AT Down 39.0 155.2 Up 05:54:44 - 06:11:09 8439
La Pine/Gilchrist 06:02:57 -17.0 AT Down 39.2 155.1 Up 05:54:45 - 06:11:10 8424
North Lake 06:02:56 -17.6 AT Down 39.8 155.7 Up 05:54:43 - 06:11:08 8391
Paisley 06:02:55 -18.2 Dark Down 40.4 155.9 Up 05:54:43 - 06:11:08 8349
Chiloquin 06:03:00 -17.8 AT Down 40.1 154.3 Up 05:54:47 - 06:11:12 8341
Klamath Falls 06:03:00 -18.2 Dark Down 40.4 154.3 Up 05:54:48 - 06:11:13 8315
Lakeview 06:02:55 -18.7 Dark Down 40.9 156.0 Up 05:54:43 - 06:11:08 8311
Tulelake 06:03:00 -18.5 Dark Down 40.8 154.5 Up 05:54:47 - 06:11:12 8294
Cedarville 06:02:55 -19.4 Dark Down 41.5 156.0 Up 05:54:43 - 06:11:08 8260
Fall River/Burney 06:03:00 -19.3 Dark Down 41.6 154.3 Up 05:54:48 - 06:11:13 8224
Susanville 06:02:58 -20.1 Dark Down 42.4 155.0 Up 05:54:46 - 06:11:11 8174
Greenville 06:03:00 -20.3 Dark Down 42.6 154.5 Up 05:54:47 - 06:11:12 8153
Gimple 06:02:59 -20.3 Dark Down 42.6 154.6 Up 05:54:47 - 06:11:12 8152
Quincy 06:03:00 -20.5 Dark Down 42.7 154.4 Up 05:54:47 - 06:11:12 8137
Portola 06:02:58 -20.7 Dark Down 43.0 155.0 Up 05:54:46 - 06:11:11 8126
Niwot 06:02:01 -24.9 Dark Down 45.7 175.7 Up 05:53:49 - 06:10:14 8120
SwRI 06:02:02 -25.0 Dark Down 45.8 175.6 Up 05:53:49 - 06:10:14 8112
Reno 06:02:56 -21.2 Dark Down 43.5 155.7 Up 05:54:44 - 06:11:09 8104
Carson City 06:02:57 -21.5 Dark Down 43.8 155.6 Up 05:54:44 - 06:11:09 8076
Yerington 06:02:55 -21.9 Dark Down 44.2 156.3 Up 05:54:42 - 06:11:07 8059
Gardnerville 06:02:56 -21.8 Dark Down 44.0 155.6 Up 05:54:44 - 06:11:09 8056
Hawthorne 06:02:53 -22.5 Dark Down 44.8 156.9 Up 05:54:41 - 06:11:06 8021
Tonopah 06:02:48 -23.5 Dark Down 45.6 158.6 Up 05:54:36 - 06:11:01 7981
Lee Vining 06:02:55 -22.9 Dark Down 45.1 156.0 Up 05:54:43 - 06:11:08 7976
Bishop 06:02:53 -23.7 Dark Down 45.9 156.7 Up 05:54:41 - 06:11:06 7926
Beatty 06:02:48 -24.7 Dark Down 46.8 158.8 Up 05:54:35 - 06:11:00 7885
Lone Pine 06:02:53 -24.5 Dark Down 46.7 156.9 Up 05:54:40 - 06:11:05 7862
Indian Springs 06:02:44 -25.3 Dark Down 47.4 160.1 Up 05:54:31 - 06:10:56 7856
Henderson 06:02:41 -26.1 Dark Down 48.1 160.9 Up 05:54:29 - 06:10:54 7810
Searchlight/Boulder City 06:02:41 -26.6 Dark Down 48.7 160.8 Up 05:54:29 - 06:10:54 7761
CPSLO 06:03:04 -24.6 Dark Down 47.0 152.8 Up 05:54:52 - 06:11:17 7756
Patrick 06:02:37 -27.0 Dark Down 49.0 162.3 Up 05:54:25 - 06:10:50 7755
Kingman/Dolan Springs 06:02:38 -27.1 Dark Down 49.2 161.9 Up 05:54:26 - 06:10:51 7736
Laughlin/Bullhead City 06:02:40 -27.0 Dark Down 49.0 161.2 Up 05:54:28 - 06:10:53 7735
DCO 06:02:35 -27.5 Dark Down 49.5 163.2 Up 05:54:22 - 06:10:47 7727
Mohave Valley 06:02:40 -27.2 Dark Down 49.3 161.1 Up 05:54:28 - 06:10:53 7712
Lake Havasu City 06:02:40 -27.7 Dark Down 49.8 161.3 Up 05:54:27 - 06:10:52 7677
Wildwood 06:02:57 -26.5 Dark Down 48.8 155.0 Up 05:54:45 - 06:11:10 7649
Parker 06:02:40 -28.0 Dark Down 50.1 161.2 Up 05:54:28 - 06:10:53 7646
Idyllwild 06:02:50 -27.5 Dark Down 49.8 157.5 Up 05:54:38 - 06:11:03 7615
Blythe 06:02:42 -28.4 Dark Down 50.5 160.6 Up 05:54:29 - 06:10:54 7601
Calipatria 06:02:46 -28.5 Dark Down 50.7 159.0 Up 05:54:33 - 06:10:58 7560
Yuma 06:02:42 -29.2 Dark Down 51.4 160.1 Up 05:54:30 - 06:10:55 7520

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 523718, (2019/06/24 06:02UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 25.58 100
60Bet Oph      17:43:28.3 +04:34:05  2.8 10.25  87
PPM 200658     17:26:37.8 -05:05:13  4.5  1.53  90
PPM 200558     17:19:50.2 -04:02:57  8.1  0.50  92
PPM 200603     17:22:45.0 -04:12:39  9.2  0.25  91
523718         17:21:47.6 -04:08:17 16.3        91
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:19:47 UT

Marc W. Buie, Southwest Research Institute

RECON