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 06:34:05.4 +26:32:46
Stellar brightness G=14.4, use SENSEUP=64
Star is 56 degrees from the moon. Moon is 48% illuminated.
TNO apparent brightness V=22.5

[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=9.5
Diameter=75.9 km assuming a 5% albedo -- 3.9 sec chord
Diameter=31.0 km assuming a 30% albedo -- 1.6 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 17.9 km RECON observability=1.0 and success probability=8.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 06:05:51 -54.7 Dark Down 36.9 91.3 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 3833
Okanagan Falls 06:05:54 -55.0 Dark Down 36.7 90.7 Up 05:50:54 - 06:20:54 3820
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 3787
Oroville 06:05:56 -55.4 Dark Down 36.8 90.5 Up 05:50:56 - 06:20:56 3784
Tonasket 06:05:56 -55.6 Dark Down 36.8 90.4 Up 05:50:56 - 06:20:56 3766
Okanogan 06:05:58 -55.8 Dark Down 36.8 90.0 Up 05:50:58 - 06:20:58 3745
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 06:06:06 -56.3 Dark Down 36.1 88.3 Up 05:51:06 - 06:21:06 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 3617
Goldendale 06:06:10 -56.9 Dark Down 35.9 87.3 Up 05:51:10 - 06:21:10 3588
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 3565
Maupin 06:06:13 -57.2 Dark Down 35.7 86.7 Up 05:51:13 - 06:21:13 3546
George/Umatilla 06:06:08 -57.6 Dark Down 36.9 88.4 Up 05:51:08 - 06:21:08 3546
PNWRO 06:06:06 -57.8 Dark Down 37.2 88.8 Up 05:51:06 - 06:21:06 3538
Madras/Culver 06:06:15 -57.6 Dark Down 35.6 86.2 Up 05:51:15 - 06:21:15 3504
Sisters 06:06:17 -57.5 Dark Down 35.3 85.7 Up 05:51:17 - 06:21:17 3493
Redmond 06:06:17 -57.8 Dark Down 35.6 86.0 Up 05:51:17 - 06:21:17 3477
Bend 06:06:18 -57.8 Dark Down 35.5 85.7 Up 05:51:18 - 06:21:18 3465
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 3441
North Lake 06:06:21 -58.6 Dark Down 35.7 85.4 Up 05:51:21 - 06:21:21 3385
Chiloquin 06:06:24 -58.4 Dark Down 34.9 84.3 Up 05:51:24 - 06:21:24 3364
Klamath Falls 06:06:25 -58.7 Dark Down 35.0 84.1 Up 05:51:25 - 06:21:25 3333
Paisley 06:06:22 -59.1 Dark Down 35.9 85.2 Up 05:51:22 - 06:21:22 3327
Tulelake 06:06:26 -59.0 Dark Down 35.2 84.1 Up 05:51:26 - 06:21:26 3300
Lakeview 06:06:23 -59.5 Dark Down 36.0 85.0 Up 05:51:23 - 06:21:23 3278
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 3217
Susanville 06:06:31 -60.4 Dark Down 35.6 83.6 Up 05:51:31 - 06:21:31 3141
Greenville 06:06:32 -60.4 Dark Down 35.4 83.2 Up 05:51:32 - 06:21:32 3129
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 3083
Reno 06:06:32 -61.4 Dark Down 36.2 83.4 Up 05:51:32 - 06:21:32 3036
Carson City 06:06:34 -61.7 Dark Down 36.2 83.2 Up 05:51:34 - 06:21:34 3005
Gardnerville 06:06:34 -61.8 Dark Down 36.2 83.0 Up 05:51:34 - 06:21:34 2982
Yerington 06:06:33 -62.2 Dark Down 36.6 83.4 Up 05:51:33 - 06:21:33 2964
Hawthorne 06:06:34 -62.8 Dark Down 37.0 83.3 Up 05:51:34 - 06:21:34 2904
Lee Vining 06:06:36 -62.8 Dark Down 36.5 82.7 Up 05:51:36 - 06:21:36 2873
Tonopah 06:06:32 -64.0 Dark Down 38.0 83.8 Up 05:51:32 - 06:21:32 2810
Bishop 06:06:37 -63.6 Dark Down 37.0 82.6 Up 05:51:37 - 06:21:37 2793
Lone Pine 06:06:39 -64.2 Dark Down 37.2 82.2 Up 05:51:39 - 06:21:39 2713
CPSLO 06:06:48 -63.1 Dark Down 35.0 80.0 Up 05:51:48 - 06:21:48 2699
Beatty 06:06:35 -64.9 Dark Down 38.3 83.1 Up 05:51:35 - 06:21:35 2690
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 2570
SwRI 06:05:58 -68.5 Dark Down 47.3 92.7 Up 05:50:58 - 06:20:58 2564
Henderson 06:06:34 -66.6 Dark Down 39.6 83.3 Up 05:51:34 - 06:21:34 2545
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 2432
Mohave Valley 06:06:37 -67.5 Dark Down 39.8 82.6 Up 05:51:37 - 06:21:37 2425
Idyllwild 06:06:45 -66.7 Dark Down 37.9 80.7 Up 05:51:45 - 06:21:45 2402
DCO 06:06:33 -68.3 Dark Down 41.0 83.5 Up 05:51:33 - 06:21:33 2391
Lake Havasu City 06:06:37 -67.9 Dark Down 39.9 82.4 Up 05:51:37 - 06:21:37 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

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 2019/06/08 09:30:07 UT

Marc W. Buie, Southwest Research Institute

RECON