RECON: TNO occultation with 248835

Event between (248835) 06SX368 and star GA1160:02360588 with event index number of 1389378

Geocentric closest approach at 2024/11/23 06:02:57 UTC

J2000 position of star is 06:32:52.8 +26:33:43
Equinox of date position of star is 06:34:08.4 +26:32:44
Stellar brightness G=14.4, use SENSEUP=64
Star is 56 degrees from the moon. Moon is 48% illuminated.
TNO apparent brightness V=23.0

[RECON map]
TNO is 19.6 AU from the Sun and 18.8 AU from the Earth.
The TNO is moving 19.7 km/sec on the sky relative to the star, or, 5.2 arcsec/hr.
The 1-sigma error in the time of the event is 296 seconds.
The 1-sigma cross-track error in the shadow position is 4876 km.
The sky-plane scale is 13639.0 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=75.9 km assuming a 5% albedo -- 3.1 sec chord
Diameter=31.0 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 248835, (2024/11/23 06:03UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:50.4 +27:57:51  1.1 16.14  40
Alhena         06:39:09.0 +16:22:33  1.9 10.22  55
49 Aur         06:36:46.1 +28:00:02  5.0  1.55  56
PPM 096118     06:33:48.0 +26:09:53  8.5  0.40  56
PPM 096131     06:34:24.0 +26:44:06  9.7  0.19  56
PPM 096154     06:34:58.8 +26:35:40 10.6  0.13  56
248835         06:34:25.8 +26:32:30 14.4        56
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 3.0 sigma about the mid-time.
The median site spacing is 18.8 km RECON observability=1.0 and success probability=8.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 06:06:03 -53.8 Dark Down 34.2 87.3 Up 05:51:03 - 06:21:03 3881
Clarence Fulton 06:05:50 -54.5 Dark Down 36.9 91.6 Up 05:50:50 - 06:20:50 3880
Peachland 06:05:52 -54.7 Dark Down 36.6 90.9 Up 05:50:52 - 06:20:52 3856
Kelowna 06:05:51 -54.7 Dark Down 36.8 91.2 Up 05:50:51 - 06:20:51 3855
Summerland 06:05:53 -54.8 Dark Down 36.7 90.8 Up 05:50:53 - 06:20:53 3842
Penticton 06:05:53 -54.9 Dark Down 36.8 90.9 Up 05:50:53 - 06:20:53 3834
Oliver 06:05:55 -55.2 Dark Down 36.8 90.6 Up 05:50:55 - 06:20:55 3807
Anarchist Mountain Observatory 06:05:55 -55.4 Dark Down 36.9 90.6 Up 05:50:55 - 06:20:55 3788
Tonasket 06:05:57 -55.6 Dark Down 36.9 90.4 Up 05:50:57 - 06:20:57 3766
Okanogan 06:05:58 -55.8 Dark Down 36.8 90.0 Up 05:50:58 - 06:20:58 3746
Brewster 06:05:59 -55.9 Dark Down 36.6 89.7 Up 05:50:59 - 06:20:59 3731
Manson/Chelan 06:06:01 -55.8 Dark Down 36.4 89.2 Up 05:51:01 - 06:21:01 3727
Entiat 06:06:02 -56.0 Dark Down 36.3 89.0 Up 05:51:02 - 06:21:02 3712
Wenatchee 06:06:03 -56.1 Dark Down 36.3 88.8 Up 05:51:03 - 06:21:03 3696
Ellensburg 06:06:05 -56.3 Dark Down 36.1 88.3 Up 05:51:05 - 06:21:05 3671
Yakima 06:06:07 -56.5 Dark Down 36.1 88.0 Up 05:51:07 - 06:21:07 3640
Toppenish/White Swan 06:06:07 -56.8 Dark Down 36.2 88.0 Up 05:51:07 - 06:21:07 3618
Goldendale 06:06:10 -56.9 Dark Down 35.9 87.3 Up 05:51:10 - 06:21:10 3589
The Dalles 06:06:12 -56.9 Dark Down 35.6 86.9 Up 05:51:12 - 06:21:12 3583
Pasco 06:06:06 -57.5 Dark Down 37.1 88.8 Up 05:51:06 - 06:21:06 3566
Maupin 06:06:13 -57.2 Dark Down 35.7 86.7 Up 05:51:13 - 06:21:13 3547
PNWRO 06:06:07 -57.8 Dark Down 37.2 88.8 Up 05:51:07 - 06:21:07 3538
Sisters 06:06:17 -57.5 Dark Down 35.3 85.7 Up 05:51:17 - 06:21:17 3494
Redmond 06:06:17 -57.8 Dark Down 35.6 86.0 Up 05:51:17 - 06:21:17 3478
Bend 06:06:18 -57.8 Dark Down 35.5 85.7 Up 05:51:18 - 06:21:18 3466
Oregon Observatory 06:06:19 -57.9 Dark Down 35.3 85.5 Up 05:51:19 - 06:21:19 3456
La Pine/Gilchrist 06:06:20 -57.9 Dark Down 35.3 85.3 Up 05:51:20 - 06:21:20 3442
North Lake 06:06:20 -58.6 Dark Down 35.7 85.4 Up 05:51:20 - 06:21:20 3386
Klamath Falls 06:06:26 -58.7 Dark Down 35.0 84.1 Up 05:51:26 - 06:21:26 3334
Paisley 06:06:22 -59.1 Dark Down 35.9 85.2 Up 05:51:22 - 06:21:22 3328
Lakeview 06:06:23 -59.5 Dark Down 36.0 85.0 Up 05:51:23 - 06:21:23 3279
Fall River/Burney 06:06:29 -59.6 Dark Down 35.1 83.6 Up 05:51:29 - 06:21:29 3222
Cedarville 06:06:26 -60.0 Dark Down 36.1 84.6 Up 05:51:26 - 06:21:26 3218
Susanville 06:06:31 -60.4 Dark Down 35.6 83.6 Up 05:51:31 - 06:21:31 3142
Greenville 06:06:32 -60.4 Dark Down 35.4 83.2 Up 05:51:32 - 06:21:32 3130
Gimple 06:06:32 -60.4 Dark Down 35.5 83.2 Up 05:51:32 - 06:21:32 3126
Quincy 06:06:33 -60.5 Dark Down 35.4 83.1 Up 05:51:33 - 06:21:33 3112
Portola 06:06:32 -60.9 Dark Down 35.7 83.2 Up 05:51:32 - 06:21:32 3084
Reno 06:06:32 -61.4 Dark Down 36.2 83.4 Up 05:51:32 - 06:21:32 3037
Carson City 06:06:34 -61.7 Dark Down 36.2 83.2 Up 05:51:34 - 06:21:34 3006
Gardnerville 06:06:34 -61.8 Dark Down 36.2 83.0 Up 05:51:34 - 06:21:34 2983
Yerington 06:06:33 -62.2 Dark Down 36.6 83.4 Up 05:51:33 - 06:21:33 2965
Hawthorne 06:06:34 -62.8 Dark Down 37.0 83.3 Up 05:51:34 - 06:21:34 2905
Lee Vining 06:06:37 -62.8 Dark Down 36.5 82.7 Up 05:51:37 - 06:21:37 2874
Tonopah 06:06:33 -64.0 Dark Down 38.0 83.8 Up 05:51:33 - 06:21:33 2811
Bishop 06:06:37 -63.6 Dark Down 37.0 82.6 Up 05:51:37 - 06:21:37 2794
CPSLO 06:06:48 -63.1 Dark Down 35.0 80.0 Up 05:51:48 - 06:21:48 2699
Beatty 06:06:36 -64.9 Dark Down 38.3 83.1 Up 05:51:36 - 06:21:36 2691
Indian Springs 06:06:34 -65.8 Dark Down 39.1 83.4 Up 05:51:34 - 06:21:34 2620
Niwot 06:05:58 -68.5 Dark Down 47.3 92.9 Up 05:50:58 - 06:20:58 2571
SwRI 06:05:58 -68.5 Dark Down 47.3 92.7 Up 05:50:58 - 06:20:58 2564
Henderson 06:06:35 -66.6 Dark Down 39.6 83.3 Up 05:51:35 - 06:21:35 2546
Wildwood 06:06:48 -65.1 Dark Down 36.4 80.1 Up 05:51:48 - 06:21:48 2509
Searchlight/Boulder City 06:06:36 -67.0 Dark Down 39.6 82.9 Up 05:51:36 - 06:21:36 2491
Laughlin/Bullhead City 06:06:36 -67.4 Dark Down 39.8 82.8 Up 05:51:36 - 06:21:36 2450
Patrick 06:06:33 -67.7 Dark Down 40.4 83.4 Up 05:51:33 - 06:21:33 2446
Kingman/Dolan Springs 06:06:35 -67.7 Dark Down 40.2 83.1 Up 05:51:35 - 06:21:35 2433
Mohave Valley 06:06:37 -67.5 Dark Down 39.8 82.6 Up 05:51:37 - 06:21:37 2425
Idyllwild 06:06:46 -66.7 Dark Down 37.9 80.7 Up 05:51:46 - 06:21:46 2402
DCO 06:06:33 -68.3 Dark Down 41.0 83.5 Up 05:51:33 - 06:21:33 2391
Lake Havasu City 06:06:38 -67.9 Dark Down 39.9 82.4 Up 05:51:38 - 06:21:38 2379
Parker 06:06:39 -68.2 Dark Down 39.9 82.1 Up 05:51:39 - 06:21:39 2345
Blythe 06:06:41 -68.3 Dark Down 39.6 81.6 Up 05:51:41 - 06:21:41 2308
Calipatria 06:06:45 -67.8 Dark Down 38.8 80.8 Up 05:51:45 - 06:21:45 2299
Yuma 06:06:44 -68.7 Dark Down 39.4 80.8 Up 05:51:44 - 06:21:44 2223
George/Scottsdale 06:06:34 -70.0 Dark Down 41.9 82.9 Up 05:51:34 - 06:21:34 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 248835, (2024/11/23 06:03UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1 16.14  40
Alhena         06:37:42.8 +16:23:57  1.9 10.22  55
49 Aur         06:35:12.1 +28:01:20  5.0  1.55  56
PPM 096118     06:32:15.3 +26:11:05  8.5  0.40  56
PPM 096131     06:32:50.9 +26:45:19  9.7  0.19  56
PPM 096154     06:33:25.7 +26:36:54 10.6  0.13  56
248835         06:32:52.8 +26:33:43 14.4        56
Positions are for J2000

Event circumstances last updated at 2020/03/25 20:48:53 UT

Marc W. Buie, Southwest Research Institute

RECON