RECON: TNO occultation with 459865

Event between (459865) 13XZ8 and star GA0720:24064794 with event index number of 2286271

Geocentric closest approach at 2027/08/05 08:47:33 UTC

J2000 position of star is 18:32:11.4 -16:59:23
Equinox of date position of star is 18:33:36.5 -16:58:13
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 104 degrees from the moon. Moon is 12% illuminated.
Apparent brightness V=20.2

[RECON map]
Object is 11.3 AU from the Sun and 10.5 AU from the Earth.
Apparent velocity is 15.7 km/sec on the sky relative to the star, or, 7.4 arcsec/hr.
The 1-sigma error in the time of the event is 70 seconds.
The 1-sigma cross-track error in the shadow position is 603 km.
The sky-plane scale is 7589.8 km/arcsec.

The object has an absolute magnitude Hv=9.5
Diameter=70.8 km assuming a 5% albedo -- 4.8 sec chord
Diameter=28.9 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 459865, (2027/08/05 08:52UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:06.2 -26:29:27  0.9 29.95  76
Nunki          18:56:58.4 -26:15:35  2.0 10.74 108
PPM 234652     18:33:03.3 -18:22:53  5.0  1.42 104
PPM 234690     18:34:37.7 -16:32:15  7.3  0.47 104
PPM 234658     18:33:20.6 -16:56:14 10.0  0.11 104
459865         18:33:47.4 -16:58:04 16.8       104
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=0.1 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)
Kamloops 08:44:42 -21.8 Dark Down 11.0 224.9 Really Low 08:38:23 - 08:51:00 6584
Kelowna 08:44:35 -22.6 Dark Down 11.2 225.8 Really Low 08:38:17 - 08:50:54 6533
Peachland 08:44:36 -22.7 Dark Down 11.4 225.5 Really Low 08:38:18 - 08:50:55 6532
Summerland 08:44:35 -22.8 Dark Down 11.5 225.6 Really Low 08:38:16 - 08:50:53 6523
Penticton 08:44:35 -22.9 Dark Down 11.5 225.8 Really Low 08:38:16 - 08:50:53 6518
Victoria 08:44:43 -24.3 Dark Down 14.0 222.6 Really Low 08:38:24 - 08:51:01 6518
Oliver 08:44:33 -23.2 Dark Down 11.7 225.8 Really Low 08:38:14 - 08:50:51 6501
Anarchist Mountain Observatory 08:44:31 -23.4 Dark Down 11.8 226.0 Really Low 08:38:13 - 08:50:50 6490
Okanogan 08:44:30 -24.0 Dark Down 12.3 225.9 Really Low 08:38:11 - 08:50:48 6460
Brewster 08:44:30 -24.3 Dark Down 12.6 225.8 Really Low 08:38:11 - 08:50:48 6448
Sleaford 08:44:10 -17.9 AT Down 3.2 236.7 Really Low 08:37:51 - 08:50:28 6444
Manson/Chelan 08:44:30 -24.6 Dark Down 12.9 225.5 Really Low 08:38:11 - 08:50:48 6443
Wenatchee 08:44:29 -25.1 Dark Down 13.4 225.4 Really Low 08:38:10 - 08:50:47 6420
Ellensburg 08:44:28 -25.5 Dark Down 13.8 225.3 Really Low 08:38:09 - 08:50:46 6401
Yakima 08:44:27 -25.9 Dark Down 14.1 225.3 Really Low 08:38:08 - 08:50:45 6379
Toppenish/White Swan 08:44:25 -26.1 Dark Down 14.1 225.5 Really Low 08:38:06 - 08:50:43 6365
The Dalles 08:44:25 -27.0 Dark Down 15.1 225.0 Really Low 08:38:06 - 08:50:43 6333
PNWRO 08:44:18 -26.3 Dark Down 13.6 226.8 Really Low 08:38:00 - 08:50:37 6324
Maupin 08:44:23 -27.4 Dark Down 15.3 225.2 Really Low 08:38:05 - 08:50:42 6309
Sisters 08:44:21 -28.3 Dark Down 16.2 224.9 Really Low 08:38:03 - 08:50:40 6266
Bend 08:44:19 -28.5 Dark Down 16.2 225.2 Really Low 08:38:01 - 08:50:38 6248
Oregon Observatory 08:44:19 -28.7 Dark Down 16.4 225.1 Really Low 08:38:01 - 08:50:38 6240
Chiloquin 08:44:16 -30.0 Dark Down 17.6 225.0 Really Low 08:37:58 - 08:50:35 6168
Klamath Falls 08:44:15 -30.4 Dark Down 17.8 225.2 Really Low 08:37:56 - 08:50:33 6146
Cedarville 08:44:07 -30.8 Dark Down 17.4 226.6 Really Low 08:37:48 - 08:50:25 6080
Fall River/Burney 08:44:09 -31.5 Dark Down 18.4 225.7 Really Low 08:37:51 - 08:50:28 6067
Greenville 08:44:05 -32.3 Dark Down 18.8 226.3 Really Low 08:37:46 - 08:50:23 6003
Gimple 08:44:04 -32.3 Dark Down 18.8 226.4 Really Low 08:37:46 - 08:50:23 6002
Quincy 08:44:04 -32.5 Dark Down 18.9 226.4 Really Low 08:37:46 - 08:50:23 5990
Portola 08:44:02 -32.6 Dark Down 18.8 226.8 Really Low 08:37:43 - 08:50:20 5975
Reno 08:43:58 -32.8 Dark Down 18.6 227.4 Really Low 08:37:40 - 08:50:17 5947
Carson City 08:43:57 -33.1 Dark Down 18.8 227.5 Really Low 08:37:38 - 08:50:15 5923
Gardnerville 08:43:56 -33.3 Dark Down 19.0 227.6 Really Low 08:37:38 - 08:50:15 5907
Yerington 08:43:54 -33.2 Dark Down 18.6 228.0 Really Low 08:37:36 - 08:50:13 5900
Hawthorne 08:43:50 -33.6 Dark Down 18.6 228.5 Really Low 08:37:32 - 08:50:09 5861
Lee Vining 08:43:51 -34.2 Dark Down 19.3 228.3 Really Low 08:37:32 - 08:50:09 5831
Bishop 08:43:46 -34.7 Dark Down 19.2 229.0 Really Low 08:37:27 - 08:50:04 5778
Dunrhomin 08:43:14 -28.5 Dark Down 9.3 238.2 Really Low 08:36:56 - 08:49:33 5733
Nikitin 08:43:13 -28.7 Dark Down 9.4 238.2 Really Low 08:36:55 - 08:49:32 5721
CU-SBO 08:43:13 -28.8 Dark Down 9.5 238.2 Really Low 08:36:55 - 08:49:32 5718
Beatty 08:43:38 -34.8 Dark Down 18.6 230.4 Really Low 08:37:20 - 08:49:57 5718
Patrick 08:43:23 -35.6 Dark Down 17.7 232.9 Really Low 08:37:05 - 08:49:42 5559
Laughlin/Bullhead City 08:43:24 -36.0 Dark Down 18.3 232.4 Really Low 08:37:06 - 08:49:43 5554
Wildwood 08:43:36 -37.9 Dark Down 21.5 229.7 Low 08:37:18 - 08:49:55 5547
Lake Havasu City 08:43:21 -36.6 Dark Down 18.6 232.8 Really Low 08:37:03 - 08:49:40 5500
Idyllwild 08:43:28 -37.9 Dark Down 20.6 231.3 Low 08:37:09 - 08:49:46 5488
Calipatria 08:43:21 -38.2 Dark Down 20.2 232.3 Low 08:37:03 - 08:49:40 5420
George/Scottsdale 08:43:10 -36.6 Dark Down 17.4 234.8 Really Low 08:36:51 - 08:49:28 5395
Yuma 08:43:17 -38.4 Dark Down 19.9 233.1 Really Low 08:36:58 - 08:49:35 5370

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 459865, (2027/08/05 08:52UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 29.95  76
Nunki          18:55:15.9 -26:17:49  2.0 10.74 108
PPM 234652     18:31:26.3 -18:24:10  5.0  1.42 104
PPM 234690     18:33:02.1 -16:33:37  7.3  0.47 104
PPM 234658     18:31:44.6 -16:57:32 10.0  0.11 104
459865         18:32:11.4 -16:59:23 16.8       104
Positions are for J2000

Event circumstances last updated at 2024/06/22 21:27:55 UT

Marc W. Buie, Southwest Research Institute

RECON