RECON: TNO occultation with 08KV42

Event between 08KV42 and star GA1380:04690902 with event index number of 255920

Geocentric closest approach at 2020/04/08 03:44:57 UTC

J2000 position of star is 16:37:33.2 +48:28:50
Equinox of date position of star is 16:38:05.3 +48:26:34
Stellar brightness G=14.4, use SENSEUP=64
Star is 67 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 25.5 AU from the Sun and 25.2 AU from the Earth.
The TNO is moving 35.2 km/sec on the sky relative to the star, or, 6.9 arcsec/hr.
The 1-sigma error in the time of the event is 79 seconds.
The 1-sigma cross-track error in the shadow position is 1935 km.
The sky-plane scale is 18294.2 km/arcsec.

The TNO has an absolute magnitude Hv=8.6
Diameter=113.2 km assuming a 5% albedo -- 3.2 sec chord
Diameter=46.2 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURS
 
 
 
 
 
 

Star training set for 08KV42, (2020/04/08 03:45UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:37.5 +38:48:12  0.0 23.48  84
23Bet Dra      17:30:53.5 +52:17:14  2.8  9.24  76
34 Her         16:30:39.5 +48:55:05  6.2  1.32  66
PPM 055571     16:39:27.0 +48:36:03  9.4  0.27  67
PPM 055557     16:38:35.3 +48:28:24 10.3  0.08  67
08KV42         16:38:06.9 +48:26:28 14.4        67
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)
Kelowna 03:47:42 -11.1 NT Up 23.1 40.8 Low 03:40:37 - 03:54:46 -613
Summerland 03:47:42 -11.1 NT Up 22.8 40.5 Low 03:40:38 - 03:54:47 -621
Penticton 03:47:42 -11.2 NT Up 22.8 40.6 Low 03:40:38 - 03:54:47 -631
Okanagan Falls 03:47:42 -11.3 NT Up 22.6 40.5 Low 03:40:38 - 03:54:47 -645
Oliver 03:47:42 -11.3 NT Up 22.5 40.5 Low 03:40:38 - 03:54:47 -658
Anarchist Mountain Observatory 03:47:42 -11.5 NT Up 22.4 40.6 Low 03:40:38 - 03:54:47 -681
Oroville 03:47:42 -11.5 NT Up 22.4 40.5 Low 03:40:38 - 03:54:47 -683
Tonasket 03:47:43 -11.6 NT Up 22.2 40.4 Low 03:40:38 - 03:54:47 -701
Okanogan 03:47:43 -11.7 NT Up 21.9 40.3 Low 03:40:38 - 03:54:47 -719
Manson/Chelan 03:47:44 -11.5 NT Up 21.2 39.8 Low 03:40:39 - 03:54:48 -724
Brewster 03:47:43 -11.7 NT Up 21.6 40.1 Low 03:40:38 - 03:54:47 -728
Entiat 03:47:44 -11.6 NT Up 21.0 39.7 Low 03:40:39 - 03:54:48 -736
Wenatchee 03:47:44 -11.6 NT Up 20.8 39.6 Low 03:40:39 - 03:54:48 -750
Ellensburg 03:47:44 -11.7 NT Up 20.4 39.4 Low 03:40:40 - 03:54:49 -769
Yakima 03:47:45 -11.8 NT Up 20.1 39.3 Low 03:40:40 - 03:54:49 -798
Toppenish/White Swan 03:47:44 -12.0 AT Up 20.0 39.4 Really Low 03:40:40 - 03:54:49 -823
The Dalles 03:47:45 -11.8 NT Up 19.0 38.8 Really Low 03:40:41 - 03:54:50 -836
Goldendale 03:47:45 -12.0 NT Up 19.4 39.0 Really Low 03:40:41 - 03:54:50 -840
Maupin 03:47:45 -12.1 AT Up 18.7 38.7 Really Low 03:40:41 - 03:54:50 -873
Pasco 03:47:44 -12.9 AT Up 20.4 40.0 Low 03:40:39 - 03:54:48 -903
Sisters 03:47:46 -12.1 AT Up 17.8 38.3 Really Low 03:40:42 - 03:54:51 -908
Madras/Culver 03:47:46 -12.3 AT Up 18.3 38.6 Really Low 03:40:41 - 03:54:50 -910
George/Umatilla 03:47:44 -12.9 AT Up 20.1 39.8 Low 03:40:39 - 03:54:48 -916
Redmond 03:47:46 -12.4 AT Up 18.0 38.5 Really Low 03:40:41 - 03:54:50 -933
PNWRO 03:47:44 -13.1 AT Up 20.4 40.1 Low 03:40:39 - 03:54:48 -935
Bend 03:47:46 -12.4 AT Up 17.8 38.4 Really Low 03:40:42 - 03:54:51 -940
Oregon Observatory 03:47:46 -12.3 AT Up 17.6 38.3 Really Low 03:40:42 - 03:54:51 -945
La Pine/Gilchrist 03:47:47 -12.4 AT Up 17.4 38.2 Really Low 03:40:42 - 03:54:51 -957
Chiloquin 03:47:47 -12.6 AT Up 16.4 37.8 Really Low 03:40:43 - 03:54:52 -1015
North Lake 03:47:46 -13.0 AT Up 17.3 38.4 Really Low 03:40:42 - 03:54:51 -1024
Klamath Falls 03:47:47 -12.8 AT Up 16.1 37.8 Really Low 03:40:43 - 03:54:52 -1044
Tulelake 03:47:47 -13.1 AT Up 16.0 37.9 Really Low 03:40:43 - 03:54:52 -1082
Paisley 03:47:46 -13.4 AT Up 17.1 38.5 Really Low 03:40:42 - 03:54:51 -1085
Lakeview 03:47:46 -13.8 AT Up 16.7 38.5 Really Low 03:40:42 - 03:54:51 -1134
Fall River/Burney 03:47:47 -13.5 AT Up 15.4 37.8 Really Low 03:40:43 - 03:54:52 -1152
Cedarville 03:47:46 -14.1 AT Up 16.3 38.5 Really Low 03:40:42 - 03:54:51 -1192
Susanville 03:47:46 -14.2 AT Up 15.2 38.0 Really Low 03:40:42 - 03:54:51 -1243
Greenville 03:47:47 -14.1 AT Up 14.9 37.9 Really Low 03:40:42 - 03:54:51 -1245
Gimple 03:47:47 -14.2 AT Up 14.9 37.9 Really Low 03:40:43 - 03:54:52 -1250
Quincy 03:47:47 -14.2 AT Up 14.7 37.8 Really Low 03:40:43 - 03:54:52 -1259
Portola 03:47:46 -14.6 AT Up 14.8 38.0 Really Low 03:40:42 - 03:54:51 -1298
Reno 03:47:46 -15.2 AT Up 14.9 38.3 Really Low 03:40:42 - 03:54:51 -1358
Carson City 03:47:46 -15.3 AT Up 14.7 38.2 Really Low 03:40:42 - 03:54:51 -1385
Gardnerville 03:47:46 -15.5 AT Up 14.5 38.2 Really Low 03:40:42 - 03:54:51 -1406
Yerington 03:47:46 -15.9 AT Up 14.8 38.5 Really Low 03:40:41 - 03:54:50 -1439
Hawthorne 03:47:45 -16.4 AT Up 14.7 38.7 Really Low 03:40:41 - 03:54:50 -1505
Lee Vining 03:47:46 -16.3 AT Up 14.0 38.4 Really Low 03:40:41 - 03:54:50 -1515
CPSLO 03:47:47 -16.2 AT Up 11.2 37.3 Really Low 03:40:43 - 03:54:52 -1603
Bishop 03:47:45 -17.1 AT Up 13.9 38.6 Really Low 03:40:40 - 03:54:49 -1604
Tonopah 03:47:44 -17.6 AT Up 15.0 39.3 Really Low 03:40:39 - 03:54:48 -1627
Lone Pine 03:47:45 -17.6 AT Up 13.5 38.6 Really Low 03:40:41 - 03:54:50 -1680
Beatty 03:47:43 -18.4 Dark Up 14.4 39.3 Really Low 03:40:39 - 03:54:48 -1739
Wildwood 03:47:45 -18.2 Dark Up 11.2 38.1 Really Low 03:40:40 - 03:54:49 -1824
Indian Springs 03:47:42 -19.4 Dark Up 14.7 39.7 Really Low 03:40:38 - 03:54:47 -1830
Henderson 03:47:42 -20.1 Dark Up 14.6 39.9 Really Low 03:40:37 - 03:54:46 -1911
Searchlight/Boulder City 03:47:42 -20.4 Dark Up 14.2 39.8 Really Low 03:40:37 - 03:54:46 -1958
Idyllwild 03:47:43 -19.8 Dark Up 11.9 38.8 Really Low 03:40:38 - 03:54:47 -1972
Laughlin/Bullhead City 03:47:42 -20.8 Dark Up 14.1 39.9 Really Low 03:40:37 - 03:54:46 -2001
Mohave Valley 03:47:41 -20.9 Dark Up 13.9 39.9 Really Low 03:40:37 - 03:54:46 -2021
Patrick 03:47:40 -21.2 Dark Up 14.7 40.3 Really Low 03:40:36 - 03:54:45 -2025
Kingman/Dolan Springs 03:47:40 -21.1 Dark Up 14.4 40.1 Really Low 03:40:36 - 03:54:45 -2030
Lake Havasu City 03:47:41 -21.3 Dark Up 13.8 39.9 Really Low 03:40:36 - 03:54:45 -2066
DCO 03:47:39 -21.8 Dark Up 14.8 40.5 Really Low 03:40:35 - 03:54:44 -2090
Calipatria 03:47:42 -20.9 Dark Up 12.1 39.2 Really Low 03:40:38 - 03:54:47 -2091
Parker 03:47:40 -21.4 Dark Up 13.5 39.9 Really Low 03:40:36 - 03:54:45 -2093
Blythe 03:47:41 -21.4 Dark Up 12.9 39.7 Really Low 03:40:37 - 03:54:46 -2113
Niwot 03:47:31 -24.7 Dark Up 22.8 44.9 Low 03:40:26 - 03:54:35 -2116
SwRI 03:47:31 -24.7 Dark Up 22.7 44.9 Low 03:40:26 - 03:54:35 -2120
Yuma 03:47:41 -21.8 Dark Up 12.2 39.5 Really Low 03:40:36 - 03:54:45 -2178

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 08KV42, (2020/04/08 03:45UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 23.48  84
23Bet Dra      17:30:25.9 +52:18:05  2.8  9.24  76
34 Her         16:30:06.0 +48:57:40  6.2  1.32  66
PPM 055571     16:38:53.5 +48:38:23  9.4  0.27  67
PPM 055557     16:38:01.7 +48:30:45 10.3  0.08  67
08KV42         16:37:33.2 +48:28:50 14.4        67
Positions are for J2000

Event circumstances last updated at 2019/04/25 23:25:52 UT

Marc W. Buie, Southwest Research Institute

RECON