RECON: TNO occultation with 10RD188

Event between 10RD188 and star GA0780:00143773 with event index number of 2102334

Geocentric closest approach at 2024/10/31 07:04:08 UTC

J2000 position of star is 01:47:57.5 -11:04:54
Equinox of date position of star is 01:49:07.9 -10:57:49
Stellar brightness G=13.4, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 157 degrees from the moon. Moon is 1% illuminated.
Apparent brightness V=21.6

[RECON map]
Object is 38.6 AU from the Sun and 37.8 AU from the Earth.
Apparent velocity is 24.4 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 62 seconds.
The 1-sigma cross-track error in the shadow position is 1482 km.
The sky-plane scale is 27383.2 km/arcsec.

The object has an absolute magnitude Hv=5.7
Diameter=418.8 km assuming a 5% albedo -- 17.6 sec chord
Diameter=171.0 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 10RD188, (2024/10/31 07:01UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:59:01.0 -29:29:24  1.2 43.68 125
68Omi Cet      02:20:36.2 -02:51:57  2.0 11.23 161
53Chi Cet      01:50:48.4 -10:33:52  4.7  0.56 158
PPM 210682     01:50:36.6 -10:34:53  7.2  0.52 158
PPM 210649     01:48:57.8 -10:51:42  8.8  0.11 157
10RD188        01:49:10.9 -10:57:31 13.4       157
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 19.5 km RECON observability=1.0 and success probability=0.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 07:03:31 -52.7 Dark Down 28.2 178.4 Low 06:57:52 - 07:09:11 -2561
Kelowna 07:03:29 -53.6 Dark Down 29.1 179.4 Low 06:57:49 - 07:09:08 -2615
Peachland 07:03:30 -53.6 Dark Down 29.2 179.1 Low 06:57:50 - 07:09:09 -2617
Summerland 07:03:30 -53.8 Dark Down 29.3 179.2 Low 06:57:50 - 07:09:09 -2626
Penticton 07:03:29 -53.9 Dark Down 29.4 179.3 Low 06:57:50 - 07:09:09 -2631
Victoria 07:03:41 -54.0 Dark Down 30.3 175.0 Up 06:58:02 - 07:09:21 -2638
Oliver 07:03:29 -54.2 Dark Down 29.7 179.3 Low 06:57:50 - 07:09:09 -2650
Anarchist Mountain Observatory 07:03:29 -54.4 Dark Down 29.9 179.5 Low 06:57:49 - 07:09:08 -2662
Sleaford 07:02:51 -52.1 Dark Down 25.9 194.1 Low 06:57:11 - 07:08:30 -2685
Okanogan 07:03:30 -55.0 Dark Down 30.6 179.3 Up 06:57:50 - 07:09:09 -2695
Brewster 07:03:31 -55.2 Dark Down 30.8 179.1 Up 06:57:51 - 07:09:10 -2707
Manson/Chelan 07:03:32 -55.4 Dark Down 31.0 178.6 Up 06:57:52 - 07:09:11 -2714
Wenatchee 07:03:33 -55.8 Dark Down 31.5 178.4 Up 06:57:53 - 07:09:12 -2739
Ellensburg 07:03:33 -56.1 Dark Down 31.9 178.2 Up 06:57:54 - 07:09:13 -2759
Yakima 07:03:34 -56.5 Dark Down 32.3 178.2 Up 06:57:54 - 07:09:13 -2783
Toppenish/White Swan 07:03:33 -56.7 Dark Down 32.5 178.4 Up 06:57:54 - 07:09:13 -2798
The Dalles 07:03:36 -57.3 Dark Down 33.3 177.4 Up 06:57:57 - 07:09:16 -2833
PNWRO 07:03:29 -57.4 Dark Down 32.9 180.1 Up 06:57:49 - 07:09:08 -2840
Maupin 07:03:36 -57.7 Dark Down 33.7 177.5 Up 06:57:57 - 07:09:16 -2859
Sisters 07:03:38 -58.4 Dark Down 34.6 176.9 Up 06:57:59 - 07:09:18 -2906
Bend 07:03:38 -58.7 Dark Down 34.8 177.2 Up 06:57:58 - 07:09:17 -2924
Oregon Observatory 07:03:38 -58.8 Dark Down 35.0 177.1 Up 06:57:59 - 07:09:18 -2933
Chiloquin 07:03:40 -59.9 Dark Down 36.3 176.5 Up 06:58:01 - 07:09:20 -3010
Klamath Falls 07:03:40 -60.3 Dark Down 36.6 176.6 Up 06:58:01 - 07:09:20 -3034
Cedarville 07:03:36 -61.4 Dark Down 37.4 178.5 Up 06:57:56 - 07:09:15 -3102
Fall River/Burney 07:03:40 -61.5 Dark Down 37.8 177.0 Up 06:58:00 - 07:09:19 -3117
Greenville 07:03:39 -62.4 Dark Down 38.7 177.5 Up 06:57:59 - 07:09:18 -3184
Gimple 07:03:38 -62.5 Dark Down 38.8 177.6 Up 06:57:59 - 07:09:18 -3186
Quincy 07:03:39 -62.6 Dark Down 38.9 177.5 Up 06:57:59 - 07:09:18 -3198
Portola 07:03:37 -62.9 Dark Down 39.1 178.1 Up 06:57:58 - 07:09:17 -3214
Reno 07:03:35 -63.3 Dark Down 39.4 178.9 Up 06:57:56 - 07:09:15 -3242
Carson City 07:03:35 -63.7 Dark Down 39.7 179.0 Up 06:57:56 - 07:09:15 -3267
Gardnerville 07:03:35 -63.9 Dark Down 40.0 179.0 Up 06:57:56 - 07:09:15 -3285
Yerington 07:03:33 -64.0 Dark Down 39.9 179.8 Up 06:57:54 - 07:09:13 -3291
Hawthorne 07:03:32 -64.6 Dark Down 40.4 180.4 Up 06:57:52 - 07:09:11 -3332
Lee Vining 07:03:34 -65.0 Dark Down 41.0 179.8 Up 06:57:54 - 07:09:13 -3364
Bishop 07:03:32 -65.7 Dark Down 41.6 180.8 Up 06:57:53 - 07:09:12 -3419
Dunrhomin 07:02:46 -63.7 Dark Down 37.1 196.8 Up 06:57:06 - 07:08:25 -3441
Nikitin 07:02:46 -63.9 Dark Down 37.3 196.9 Up 06:57:06 - 07:08:25 -3454
CU-SBO 07:02:46 -64.0 Dark Down 37.4 196.8 Up 06:57:06 - 07:08:25 -3457
Beatty 07:03:26 -66.6 Dark Down 42.0 182.9 Up 06:57:46 - 07:09:05 -3480
Patrick 07:03:16 -68.6 Dark Down 43.3 186.8 Up 06:57:37 - 07:08:56 -3641
Laughlin/Bullhead City 07:03:19 -68.7 Dark Down 43.6 185.9 Up 06:57:39 - 07:08:58 -3648
Wildwood 07:03:34 -68.7 Dark Down 44.8 180.5 Up 06:57:54 - 07:09:13 -3661
Lake Havasu City 07:03:18 -69.4 Dark Down 44.2 186.3 Up 06:57:39 - 07:08:58 -3704
Idyllwild 07:03:27 -69.6 Dark Down 45.1 183.1 Up 06:57:48 - 07:09:07 -3720
Calipatria 07:03:23 -70.5 Dark Down 45.7 184.8 Up 06:57:44 - 07:09:03 -3790
George/Scottsdale 07:03:10 -70.5 Dark Down 44.7 189.7 Up 06:57:30 - 07:08:49 -3810
Yuma 07:03:20 -71.1 Dark Down 46.0 186.1 Up 06:57:40 - 07:08:59 -3840

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 10RD188, (2024/10/31 07:01UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 43.68 125
68Omi Cet      02:19:20.8 -02:58:45  2.0 11.23 161
53Chi Cet      01:49:34.9 -10:41:13  4.7  0.56 158
PPM 210682     01:49:23.1 -10:42:15  7.2  0.52 158
PPM 210649     01:47:44.4 -10:59:05  8.8  0.11 157
10RD188        01:47:57.5 -11:04:54 13.4       157
Positions are for J2000

Event circumstances last updated at 2023/10/22 04:08:00 UT

Marc W. Buie, Southwest Research Institute

RECON