RECON: TNO occultation with 10JE215

Event between 10JE215 and star GA0720:26811387 with event index number of 2092113

Geocentric closest approach at 2024/06/30 08:03:08 UTC

J2000 position of star is 18:41:34.4 -17:28:23
Equinox of date position of star is 18:42:57.6 -17:26:55
Stellar brightness G=16.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 108 degrees from the moon. Moon is 34% illuminated.
Apparent brightness V=22.8

[RECON map]
Object is 28.8 AU from the Sun and 27.8 AU from the Earth.
Apparent velocity is 22.7 km/sec on the sky relative to the star, or, 4.1 arcsec/hr.
The 1-sigma error in the time of the event is 538 seconds.
The 1-sigma cross-track error in the shadow position is 3701 km.
The sky-plane scale is 20128.2 km/arcsec.

The object has an absolute magnitude Hv=8.3
Diameter=133.0 km assuming a 5% albedo -- 5.9 sec chord
Diameter=54.3 km assuming a 30% albedo -- 2.4 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 10JE215, (2024/06/30 08:03UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.8 -26:29:03  0.9 31.83 138
Nunki          18:56:46.9 -26:15:51  2.0  9.38 105
PPM 234930     18:44:21.7 -19:15:31  6.1  1.84 107
PPM 234892     18:42:45.1 -17:02:58  8.3  0.40 107
PPM 234881     18:42:22.9 -17:14:22  9.4  0.26 108
10JE215        18:42:59.9 -17:26:53 16.4       107
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 1.7 sigma about the mid-time.
The median site spacing is 17.4 km RECON observability=1.0 and success probability=0.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 08:02:41 -16.2 AT Down 21.8 178.8 Low 07:47:41 - 08:17:41 11822
Kelowna 08:02:41 -17.0 AT Down 22.7 179.7 Low 07:47:41 - 08:17:41 11781
Peachland 08:02:40 -17.1 AT Down 22.8 179.4 Low 07:47:40 - 08:17:40 11779
Summerland 08:02:41 -17.3 AT Down 22.9 179.5 Low 07:47:41 - 08:17:41 11772
Penticton 08:02:39 -17.3 AT Down 23.0 179.6 Low 07:47:39 - 08:17:39 11768
Victoria 08:02:52 -18.3 Dark Down 23.9 175.6 Low 07:47:52 - 08:17:52 11754
Oliver 08:02:41 -17.7 AT Down 23.3 179.6 Low 07:47:41 - 08:17:41 11753
Anarchist Mountain Observatory 08:02:39 -17.9 AT Down 23.5 179.8 Low 07:47:39 - 08:17:39 11744
Sleaford 08:02:00 -13.8 AT Up 19.5 193.2 Really Low 07:47:00 - 08:17:00 11732
Okanogan 08:02:40 -18.5 Dark Down 24.2 179.6 Low 07:47:40 - 08:17:40 11717
Brewster 08:02:41 -18.8 Dark Down 24.4 179.3 Low 07:47:41 - 08:17:41 11706
Manson/Chelan 08:02:42 -19.0 Dark Down 24.6 179.0 Low 07:47:42 - 08:17:42 11700
Wenatchee 08:02:42 -19.5 Dark Down 25.1 178.8 Low 07:47:42 - 08:17:42 11679
Ellensburg 08:02:44 -19.9 Dark Down 25.5 178.5 Low 07:47:44 - 08:17:44 11662
Yakima 08:02:44 -20.3 Dark Down 25.9 178.5 Low 07:47:44 - 08:17:44 11642
Toppenish/White Swan 08:02:43 -20.5 Dark Down 26.1 178.7 Low 07:47:43 - 08:17:43 11630
PNWRO 08:02:38 -20.9 Dark Down 26.5 180.3 Low 07:47:38 - 08:17:38 11599
The Dalles 08:02:46 -21.3 Dark Down 26.9 177.9 Low 07:47:46 - 08:17:46 11599
Maupin 08:02:46 -21.7 Dark Down 27.3 178.0 Low 07:47:46 - 08:17:46 11577
Sisters 08:02:48 -22.6 Dark Down 28.2 177.4 Low 07:47:48 - 08:17:48 11537
Bend 08:02:47 -22.8 Dark Down 28.4 177.7 Low 07:47:47 - 08:17:47 11523
Oregon Observatory 08:02:48 -23.0 Dark Down 28.6 177.5 Low 07:47:48 - 08:17:48 11515
Chiloquin 08:02:50 -24.3 Dark Down 29.9 177.1 Low 07:47:50 - 08:17:50 11448
Klamath Falls 08:02:49 -24.6 Dark Down 30.3 177.1 Up 07:47:49 - 08:17:49 11428
Cedarville 08:02:45 -25.3 Dark Down 31.0 178.9 Up 07:47:45 - 08:17:45 11375
Fall River/Burney 08:02:48 -25.8 Dark Down 31.4 177.5 Up 07:47:48 - 08:17:48 11358
Greenville 08:02:48 -26.7 Dark Down 32.4 178.0 Up 07:47:48 - 08:17:48 11302
Gimple 08:02:47 -26.7 Dark Down 32.4 178.1 Up 07:47:47 - 08:17:47 11301
Quincy 08:02:48 -26.9 Dark Down 32.6 178.0 Up 07:47:48 - 08:17:48 11290
Portola 08:02:46 -27.1 Dark Down 32.7 178.5 Up 07:47:46 - 08:17:46 11278
Reno 08:02:44 -27.3 Dark Down 33.0 179.3 Up 07:47:44 - 08:17:44 11256
Carson City 08:02:44 -27.7 Dark Down 33.3 179.3 Up 07:47:44 - 08:17:44 11234
Gardnerville 08:02:44 -27.9 Dark Down 33.6 179.3 Up 07:47:44 - 08:17:44 11219
Yerington 08:02:42 -27.9 Dark Down 33.5 180.0 Up 07:47:42 - 08:17:42 11216
Hawthorne 08:02:40 -28.3 Dark Down 34.0 180.6 Up 07:47:40 - 08:17:40 11182
Lee Vining 08:02:42 -28.9 Dark Down 34.6 180.1 Up 07:47:42 - 08:17:42 11152
Dunrhomin 08:01:51 -25.2 Dark Up 30.9 195.4 Up 07:46:51 - 08:16:51 11109
Bishop 08:02:39 -29.5 Dark Down 35.2 180.9 Up 07:47:39 - 08:17:39 11106
Nikitin 08:01:51 -25.4 Dark Up 31.0 195.4 Up 07:46:51 - 08:16:51 11098
CU-SBO 08:01:51 -25.5 Dark Up 31.1 195.3 Up 07:46:51 - 08:16:51 11096
Beatty 08:02:33 -29.9 Dark Down 35.6 182.8 Up 07:47:33 - 08:17:33 11058
Patrick 08:02:22 -31.2 Dark Down 36.9 186.2 Up 07:47:22 - 08:17:22 10924
Laughlin/Bullhead City 08:02:26 -31.5 Dark Down 37.2 185.4 Up 07:47:26 - 08:17:26 10916
Wildwood 08:02:42 -32.8 Dark Down 38.4 180.7 Up 07:47:42 - 08:17:42 10892
Lake Havasu City 08:02:24 -32.2 Dark Down 37.8 185.8 Up 07:47:24 - 08:17:24 10867
Idyllwild 08:02:34 -33.1 Dark Down 38.7 183.0 Up 07:47:34 - 08:17:34 10846
Calipatria 08:02:29 -33.6 Dark Down 39.3 184.4 Up 07:47:29 - 08:17:29 10787
George/Scottsdale 08:02:15 -32.7 Dark Up 38.4 188.8 Up 07:47:15 - 08:17:15 10780
Yuma 08:02:26 -34.0 Dark Down 39.7 185.5 Up 07:47:26 - 08:17:26 10745

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 10JE215, (2024/06/30 08:03UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 31.83 138
Nunki          18:55:15.9 -26:17:49  2.0  9.38 105
PPM 234930     18:42:55.1 -19:17:04  6.1  1.84 107
PPM 234892     18:41:19.9 -17:04:27  8.3  0.40 107
PPM 234881     18:40:57.6 -17:15:51  9.4  0.26 108
10JE215        18:41:34.4 -17:28:23 16.4       107
Positions are for J2000

Event circumstances last updated at 2023/11/07 05:29:54 UT

Marc W. Buie, Southwest Research Institute

RECON