RECON: TNO occultation with 15788

Event between (15788) 93SB and star GA1140:01110919 with event index number of 1387731

Geocentric closest approach at 2024/11/24 08:22:45 UTC

J2000 position of star is 05:18:19.4 +25:05:55
Equinox of date position of star is 05:19:44.2 +25:07:17
Stellar brightness G=16.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 86 degrees from the moon. Moon is 38% illuminated.
Apparent brightness V=22.2

[RECON map]
Object is 26.8 AU from the Sun and 25.8 AU from the Earth.
Apparent velocity is 22.1 km/sec on the sky relative to the star, or, 4.2 arcsec/hr.
The 1-sigma error in the time of the event is 242 seconds.
The 1-sigma cross-track error in the shadow position is 1352 km.
The sky-plane scale is 18746.5 km/arcsec.

The object has an absolute magnitude Hv=7.9
Diameter=154.9 km assuming a 5% albedo -- 7.0 sec chord
Diameter=63.2 km assuming a 30% albedo -- 2.9 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 15788, (2024/11/24 08:18UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:21.1 +16:33:27  0.8 13.10  97
Alnath         05:27:52.1 +28:37:34  1.6  3.93  84
103 Tau        05:09:37.8 +24:17:45  5.3  2.46  88
PPM 094241     05:19:02.9 +24:02:04  7.9  1.10  86
PPM 094233     05:18:30.9 +25:08:32 10.0  0.30  86
PPM 094247     05:19:30.1 +25:05:21 10.1  0.09  86
15788          05:19:51.3 +25:07:23 16.1        86
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 3.7 sigma about the mid-time.
The median site spacing is 36.3 km RECON observability=1.0 and success probability=0.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:22:27 -53.9 Dark Up 62.9 187.8 Up 08:07:27 - 08:37:27 7143
Kamloops 08:23:13 -59.2 Dark Down 63.2 158.8 Up 08:08:13 - 08:38:13 7083
Kelowna 08:23:10 -59.8 Dark Down 64.2 160.0 Up 08:08:10 - 08:38:10 6994
Peachland 08:23:12 -60.0 Dark Down 64.2 159.3 Up 08:08:12 - 08:38:12 6986
Summerland 08:23:11 -60.1 Dark Down 64.4 159.4 Up 08:08:11 - 08:38:11 6970
Penticton 08:23:11 -60.2 Dark Down 64.5 159.6 Up 08:08:11 - 08:38:11 6963
Oliver 08:23:11 -60.5 Dark Down 64.8 159.3 Up 08:08:11 - 08:38:11 6927
Anarchist Mountain Observatory 08:23:11 -60.6 Dark Down 65.0 159.6 Up 08:08:11 - 08:38:11 6909
Victoria 08:23:24 -61.8 Dark Down 64.3 151.1 Up 08:08:24 - 08:38:24 6900
Okanogan 08:23:12 -61.3 Dark Down 65.5 158.7 Up 08:08:12 - 08:38:12 6846
Brewster 08:23:13 -61.6 Dark Down 65.7 158.0 Up 08:08:13 - 08:38:13 6820
Manson/Chelan 08:23:15 -61.8 Dark Down 65.8 157.1 Up 08:08:15 - 08:38:15 6803
Wenatchee 08:23:15 -62.3 Dark Down 66.2 156.3 Up 08:08:15 - 08:38:15 6756
Ellensburg 08:23:17 -62.8 Dark Down 66.6 155.4 Up 08:08:17 - 08:38:17 6717
Yakima 08:23:17 -63.2 Dark Down 66.9 155.0 Up 08:08:17 - 08:38:17 6675
Toppenish/White Swan 08:23:17 -63.3 Dark Down 67.2 155.2 Up 08:08:17 - 08:38:17 6652
PNWRO 08:23:12 -63.3 Dark Down 67.9 158.2 Up 08:08:12 - 08:38:12 6599
The Dalles 08:23:20 -64.2 Dark Down 67.6 152.6 Up 08:08:20 - 08:38:20 6580
Maupin 08:23:20 -64.6 Dark Down 68.0 152.4 Up 08:08:20 - 08:38:20 6536
Sisters 08:23:23 -65.5 Dark Down 68.6 150.2 Up 08:08:23 - 08:38:23 6451
Bend 08:23:22 -65.7 Dark Down 68.9 150.5 Up 08:08:22 - 08:38:22 6424
Oregon Observatory 08:23:23 -65.9 Dark Down 69.0 150.0 Up 08:08:23 - 08:38:23 6407
Chiloquin 08:23:25 -67.3 Dark Down 70.0 147.2 Up 08:08:25 - 08:38:25 6275
Klamath Falls 08:23:25 -67.6 Dark Down 70.3 146.9 Up 08:08:25 - 08:38:25 6238
Cedarville 08:23:20 -67.8 Dark Down 71.5 149.8 Up 08:08:20 - 08:38:20 6147
Fall River/Burney 08:23:25 -68.6 Dark Down 71.5 145.9 Up 08:08:25 - 08:38:25 6110
Greenville 08:23:24 -69.3 Dark Down 72.4 145.5 Up 08:08:24 - 08:38:24 6009
Gimple 08:23:24 -69.3 Dark Down 72.5 145.7 Up 08:08:24 - 08:38:24 6008
Quincy 08:23:24 -69.5 Dark Down 72.6 145.1 Up 08:08:24 - 08:38:24 5988
Portola 08:23:23 -69.5 Dark Down 72.9 146.2 Up 08:08:23 - 08:38:23 5969
Reno 08:23:20 -69.5 Dark Down 73.4 147.5 Up 08:08:20 - 08:38:20 5934
Dunrhomin 08:22:24 -61.8 Dark Up 74.4 195.8 Up 08:07:24 - 08:37:24 5916
Nikitin 08:22:24 -62.0 Dark Up 74.5 195.9 Up 08:07:24 - 08:37:24 5896
Carson City 08:23:21 -69.8 Dark Down 73.7 146.9 Up 08:08:21 - 08:38:21 5895
CU-SBO 08:22:25 -62.1 Dark Up 74.6 195.7 Up 08:07:25 - 08:37:25 5889
Gardnerville 08:23:21 -70.0 Dark Down 73.9 146.6 Up 08:08:21 - 08:38:21 5869
Yerington 08:23:18 -69.8 Dark Down 74.1 148.3 Up 08:08:18 - 08:38:18 5868
Hawthorne 08:23:17 -70.0 Dark Down 74.7 149.1 Up 08:08:17 - 08:38:17 5812
Lee Vining 08:23:19 -70.7 Dark Down 75.0 146.5 Up 08:08:19 - 08:38:19 5757
Bishop 08:23:17 -70.9 Dark Down 75.8 147.5 Up 08:08:17 - 08:38:17 5685
Beatty 08:23:11 -70.5 Dark Down 76.9 152.1 Up 08:08:11 - 08:38:11 5619
Patrick 08:23:00 -70.1 Dark Up 79.2 160.9 Up 08:08:00 - 08:38:00 5434
Laughlin/Bullhead City 08:23:03 -70.7 Dark Up 79.2 157.2 Up 08:08:03 - 08:38:03 5412
Lake Havasu City 08:23:02 -71.0 Dark Up 79.9 157.0 Up 08:08:02 - 08:38:02 5337
Wildwood 08:23:20 -73.7 Dark Down 78.3 138.2 Up 08:08:20 - 08:38:20 5334
Idyllwild 08:23:13 -72.9 Dark Down 79.6 144.2 Up 08:08:13 - 08:38:13 5276
George/Scottsdale 08:22:52 -70.0 Dark Up 81.2 168.5 Up 08:07:52 - 08:37:52 5234
Calipatria 08:23:08 -72.7 Dark Up 80.6 147.5 Up 08:08:08 - 08:38:08 5198
Yuma 08:23:04 -72.4 Dark Up 81.4 150.6 Up 08:08:04 - 08:38:04 5143

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 15788, (2024/11/24 08:18UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 13.10  97
Alnath         05:26:17.6 +28:36:23  1.6  3.93  84
103 Tau        05:08:06.6 +24:15:54  5.3  2.46  88
PPM 094241     05:17:31.7 +24:00:34  7.9  1.10  86
PPM 094233     05:16:59.0 +25:07:01 10.0  0.30  86
PPM 094247     05:17:58.2 +25:03:51 10.1  0.09  86
15788          05:18:19.4 +25:05:55 16.1        86
Positions are for J2000

Event circumstances last updated at 2022/12/24 04:08:51 UT

Marc W. Buie, Southwest Research Institute

RECON