RECON: TNO occultation with 118228

Event between (118228) 96TQ66 and star GA1260:02160946 with event index number of 2366341

Geocentric closest approach at 2028/11/14 11:05:42 UTC

J2000 position of star is 05:35:15.6 +37:43:58
Equinox of date position of star is 05:36:55.0 +37:44:48
Stellar brightness G=15.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 119 degrees from the moon. Moon is 6% illuminated.
Apparent brightness V=22.8

[RECON map]
Object is 36.2 AU from the Sun and 35.4 AU from the Earth.
Apparent velocity is 20.9 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 591 seconds.
The 1-sigma cross-track error in the shadow position is 3804 km.
The sky-plane scale is 25692.8 km/arcsec.

The object has an absolute magnitude Hv=7.2
Diameter=224.9 km assuming a 5% albedo -- 10.6 sec chord
Diameter=91.8 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 118228, (2028/11/14 11:06UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:34.8 +16:33:55  0.8 24.92 133
34Bet Aur      06:01:38.9 +44:56:49  1.9  8.53 114
21Sig Aur      05:26:37.1 +37:24:34  6.4  2.13 121
PPM 070574     05:37:26.3 +37:55:05  7.9  0.17 119
118228         05:37:14.1 +37:44:58 15.8       119
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 1.5 sigma about the mid-time.
The median site spacing is 30.3 km RECON observability=1.0 and success probability=15.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 11:04:24 -30.3 Dark Down 64.4 248.0 Up 10:49:24 - 11:19:24 -1424
Kamloops 11:05:02 -39.3 Dark Down 72.7 227.8 Up 10:50:02 - 11:20:02 -1945
Kelowna 11:04:58 -39.0 Dark Down 72.8 231.6 Up 10:49:58 - 11:19:58 -2006
Peachland 11:04:58 -39.2 Dark Down 73.0 231.3 Up 10:49:58 - 11:19:58 -2025
Summerland 11:04:58 -39.2 Dark Down 73.1 231.9 Up 10:49:58 - 11:19:58 -2038
Penticton 11:04:57 -39.2 Dark Down 73.1 232.3 Up 10:49:57 - 11:19:57 -2042
Oliver 11:04:56 -39.3 Dark Down 73.3 233.2 Up 10:49:56 - 11:19:56 -2078
Anarchist Mountain Observatory 11:04:56 -39.2 Dark Down 73.3 234.0 Up 10:49:56 - 11:19:56 -2090
Okanogan 11:04:55 -39.6 Dark Down 73.8 235.3 Up 10:49:55 - 11:19:55 -2161
Brewster 11:04:55 -39.8 Dark Down 74.0 235.7 Up 10:49:55 - 11:19:55 -2194
Manson/Chelan 11:04:56 -40.1 Dark Down 74.4 235.6 Up 10:49:56 - 11:19:56 -2224
Victoria 11:05:08 -41.9 Dark Down 75.6 226.3 Up 10:50:08 - 11:20:08 -2233
Wenatchee 11:04:55 -40.3 Dark Down 74.7 236.6 Up 10:49:55 - 11:19:55 -2277
Ellensburg 11:04:55 -40.6 Dark Down 75.1 237.4 Up 10:49:55 - 11:19:55 -2325
Yakima 11:04:55 -40.7 Dark Down 75.3 238.7 Up 10:49:55 - 11:19:55 -2367
Toppenish/White Swan 11:04:54 -40.7 Dark Down 75.3 239.7 Up 10:49:54 - 11:19:54 -2385
PNWRO 11:04:49 -39.8 Dark Down 74.6 243.8 Up 10:49:49 - 11:19:49 -2385
The Dalles 11:04:56 -41.5 Dark Down 76.2 240.8 Up 10:49:56 - 11:19:56 -2485
Dunrhomin 11:03:50 -30.9 Dark Down 65.9 274.1 Up 10:48:50 - 11:18:50 -2525
Maupin 11:04:54 -41.5 Dark Down 76.3 242.5 Up 10:49:54 - 11:19:54 -2526
Nikitin 11:03:50 -31.0 Dark Down 65.9 274.5 Up 10:48:50 - 11:18:50 -2544
CU-SBO 11:03:50 -31.0 Dark Down 65.9 274.6 Up 10:48:50 - 11:18:50 -2553
Sisters 11:04:54 -42.1 Dark Down 77.0 244.8 Up 10:49:54 - 11:19:54 -2630
Bend 11:04:53 -42.0 Dark Down 76.9 246.3 Up 10:49:53 - 11:19:53 -2648
Oregon Observatory 11:04:53 -42.1 Dark Down 77.1 246.7 Up 10:49:53 - 11:19:53 -2669
Chiloquin 11:04:52 -42.8 Dark Down 77.8 251.4 Up 10:49:52 - 11:19:52 -2818
Klamath Falls 11:04:51 -42.8 Dark Down 77.9 253.1 Up 10:49:51 - 11:19:51 -2852
Cedarville 11:04:45 -41.8 Dark Down 76.9 258.5 Up 10:49:45 - 11:19:45 -2883
Fall River/Burney 11:04:48 -42.8 Dark Down 77.9 259.0 Up 10:49:48 - 11:19:48 -2966
Gimple 11:04:44 -42.7 Dark Down 77.7 263.8 Up 10:49:44 - 11:19:44 -3047
Greenville 11:04:45 -42.7 Dark Down 77.7 263.7 Up 10:49:45 - 11:19:45 -3049
Quincy 11:04:44 -42.8 Dark Down 77.7 264.6 Up 10:49:44 - 11:19:44 -3070
Portola 11:04:42 -42.4 Dark Down 77.4 265.6 Up 10:49:42 - 11:19:42 -3070
Reno 11:04:40 -42.0 Dark Down 76.9 267.3 Up 10:49:40 - 11:19:40 -3080
Carson City 11:04:39 -42.1 Dark Down 76.9 268.9 Up 10:49:39 - 11:19:39 -3117
Yerington 11:04:36 -41.6 Dark Down 76.4 270.1 Up 10:49:36 - 11:19:36 -3120
Gardnerville 11:04:38 -42.1 Dark Down 76.9 269.9 Up 10:49:38 - 11:19:38 -3142
Hawthorne 11:04:33 -41.3 Dark Down 76.0 272.3 Up 10:49:33 - 11:19:33 -3153
Lee Vining 11:04:34 -41.8 Dark Down 76.4 274.4 Up 10:49:34 - 11:19:34 -3226
Beatty 11:04:23 -40.1 Dark Down 74.4 279.0 Up 10:49:23 - 11:19:23 -3266
Bishop 11:04:30 -41.3 Dark Down 75.8 277.0 Up 10:49:30 - 11:19:30 -3268
Patrick 11:04:10 -37.9 Dark Down 71.9 284.0 Up 10:49:10 - 11:19:10 -3325
Laughlin/Bullhead City 11:04:12 -38.5 Dark Down 72.4 284.8 Up 10:49:12 - 11:19:12 -3374
George/Scottsdale 11:03:59 -36.4 Dark Down 69.8 288.5 Up 10:48:59 - 11:18:59 -3428
Lake Havasu City 11:04:10 -38.4 Dark Down 72.0 286.7 Up 10:49:10 - 11:19:10 -3435
Idyllwild 11:04:17 -40.4 Dark Down 73.6 289.7 Up 10:49:17 - 11:19:17 -3593
Wildwood 11:04:26 -41.9 Dark Down 75.2 289.3 Up 10:49:26 - 11:19:26 -3616
Calipatria 11:04:12 -39.4 Dark Down 72.5 291.1 Up 10:49:12 - 11:19:12 -3617
Yuma 11:04:08 -38.7 Dark Down 71.6 292.0 Up 10:49:08 - 11:19:08 -3631

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 118228, (2028/11/14 11:06UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 24.92 133
34Bet Aur      05:59:31.6 +44:56:51  1.9  8.53 114
21Sig Aur      05:24:39.2 +37:23:07  6.4  2.13 121
PPM 070574     05:35:27.6 +37:54:06  7.9  0.17 119
118228         05:35:15.6 +37:43:58 15.8       119
Positions are for J2000

Event circumstances last updated at 2024/03/21 22:36:03 UT

Marc W. Buie, Southwest Research Institute

RECON