RECON: TNO occultation with 11VZ24

Event between 11VZ24 and star GA0920:00756674 with event index number of 1574562

Geocentric closest approach at 2024/12/16 10:54:02 UTC

J2000 position of star is 05:31:35.5 +02:00:19
Equinox of date position of star is 05:32:41.6 +02:01:10
Stellar brightness G=16.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 31 degrees from the moon. Moon is 98% illuminated.
TNO apparent brightness V=22.6

[RECON map]
TNO is 36.7 AU from the Sun and 35.8 AU from the Earth.
The TNO is moving 24.8 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 399 seconds.
The 1-sigma cross-track error in the shadow position is 2680 km.
The sky-plane scale is 25928.7 km/arcsec.

The TNO has an absolute magnitude Hv=6.9
Diameter=246.6 km assuming a 5% albedo -- 9.9 sec chord
Diameter=100.7 km assuming a 30% albedo -- 4.1 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 11VZ24, (2024/12/16 10:54UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:31.4 +07:24:35  0.4  7.98  23
34Del Ori      05:33:17.0 -00:16:57  2.2  2.31  33
PPM 149035     05:31:12.5 +01:48:26  5.4  0.47  31
PPM 149086     05:32:47.6 +01:42:25  7.6  0.32  31
PPM 149088     05:32:50.9 +01:57:29  9.8  0.06  31
11VZ24         05:32:53.4 +02:01:19 16.6        31
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 2.3 sigma about the mid-time.
The median site spacing is 21.4 km RECON observability=1.0 and success probability=0.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 10:51:50 -46.2 Dark Up 27.9 234.9 Low 10:36:50 - 11:06:50 10026
Kelowna 10:51:50 -46.5 Dark Up 28.2 234.9 Low 10:36:50 - 11:06:50 9996
Peachland 10:51:50 -46.7 Dark Up 28.4 234.7 Low 10:36:50 - 11:06:50 9988
Summerland 10:51:49 -46.7 Dark Up 28.5 234.8 Low 10:36:49 - 11:06:49 9976
Penticton 10:51:49 -46.6 Dark Up 28.5 235.0 Low 10:36:49 - 11:06:49 9971
Oliver 10:51:48 -46.7 Dark Up 28.7 235.1 Low 10:36:48 - 11:06:48 9943
Anarchist Mountain Observatory 10:51:47 -46.7 Dark Up 28.7 235.4 Low 10:36:47 - 11:06:47 9930
Tonasket 10:51:47 -46.8 Dark Up 28.9 235.4 Low 10:36:47 - 11:06:47 9905
Victoria 10:51:55 -49.3 Dark Up 31.1 231.7 Up 10:36:55 - 11:06:55 9898
Okanogan 10:51:47 -47.0 Dark Up 29.1 235.5 Low 10:36:47 - 11:06:47 9878
Brewster 10:51:46 -47.3 Dark Up 29.4 235.4 Low 10:36:46 - 11:06:46 9857
Manson/Chelan 10:51:47 -47.6 Dark Up 29.7 235.1 Low 10:36:47 - 11:06:47 9841
Wenatchee 10:51:46 -47.8 Dark Up 30.1 235.2 Up 10:36:46 - 11:06:46 9803
Ellensburg 10:51:46 -48.1 Dark Up 30.5 235.2 Up 10:36:46 - 11:06:46 9770
Yakima 10:51:45 -48.3 Dark Up 30.7 235.3 Up 10:36:45 - 11:06:45 9736
Toppenish/White Swan 10:51:44 -48.2 Dark Up 30.7 235.6 Up 10:36:44 - 11:06:44 9718
Pasco 10:51:42 -47.4 Dark Up 30.1 236.9 Up 10:36:42 - 11:06:42 9705
PNWRO 10:51:41 -47.3 Dark Up 30.1 237.2 Up 10:36:41 - 11:06:41 9685
Goldendale 10:51:45 -48.7 Dark Up 31.3 235.5 Up 10:36:45 - 11:06:45 9673
The Dalles 10:51:44 -49.0 Dark Up 31.6 235.2 Up 10:36:44 - 11:06:44 9655
Maupin 10:51:43 -49.0 Dark Up 31.8 235.6 Up 10:36:43 - 11:06:43 9620
Sisters 10:51:43 -49.6 Dark Up 32.6 235.5 Up 10:36:43 - 11:06:43 9547
Redmond 10:51:42 -49.4 Dark Up 32.4 235.9 Up 10:36:42 - 11:06:42 9544
Bend 10:51:42 -49.5 Dark Up 32.6 235.9 Up 10:36:42 - 11:06:42 9526
Oregon Observatory 10:51:42 -49.7 Dark Up 32.8 235.9 Up 10:36:42 - 11:06:42 9512
La Pine/Gilchrist 10:51:42 -49.8 Dark Up 32.9 235.9 Up 10:36:42 - 11:06:42 9494
North Lake 10:51:39 -49.5 Dark Up 32.8 236.7 Up 10:36:39 - 11:06:39 9455
Paisley 10:51:37 -49.4 Dark Up 32.9 237.3 Up 10:36:37 - 11:06:37 9407
Chiloquin 10:51:40 -50.3 Dark Up 33.7 236.2 Up 10:36:40 - 11:06:40 9399
Klamath Falls 10:51:40 -50.4 Dark Up 33.9 236.5 Up 10:36:40 - 11:06:40 9369
Lakeview 10:51:36 -49.4 Dark Up 33.0 237.8 Up 10:36:36 - 11:06:36 9362
Cedarville 10:51:34 -49.4 Dark Up 33.3 238.3 Up 10:36:34 - 11:06:34 9304
Fall River/Burney 10:51:36 -50.4 Dark Up 34.3 237.5 Up 10:36:36 - 11:06:36 9264
Susanville 10:51:33 -50.0 Dark Up 34.2 238.5 Up 10:36:33 - 11:06:33 9206
Greenville 10:51:34 -50.3 Dark Up 34.5 238.4 Up 10:36:34 - 11:06:34 9182
Gimple 10:51:33 -50.2 Dark Up 34.4 238.5 Up 10:36:33 - 11:06:33 9181
Dunrhomin 10:51:01 -38.4 Dark Up 23.6 251.3 Low 10:36:01 - 11:06:01 9170
Quincy 10:51:33 -50.3 Dark Up 34.6 238.5 Up 10:36:33 - 11:06:33 9163
Portola 10:51:32 -50.0 Dark Up 34.4 239.0 Up 10:36:32 - 11:06:32 9151
Reno 10:51:30 -49.5 Dark Up 34.1 239.8 Up 10:36:30 - 11:06:30 9125
Carson City 10:51:29 -49.6 Dark Up 34.2 240.0 Up 10:36:29 - 11:06:29 9093
Yerington 10:51:27 -49.1 Dark Up 33.9 240.7 Up 10:36:27 - 11:06:27 9074
Gardnerville 10:51:29 -49.6 Dark Up 34.3 240.2 Up 10:36:29 - 11:06:29 9070
Hawthorne 10:51:25 -48.8 Dark Up 33.8 241.4 Up 10:36:25 - 11:06:25 9030
Tonopah 10:51:21 -47.8 Dark Up 33.0 242.9 Up 10:36:21 - 11:06:21 8984
Lee Vining 10:51:25 -49.2 Dark Up 34.4 241.3 Up 10:36:25 - 11:06:25 8979
Bishop 10:51:23 -48.8 Dark Up 34.2 242.3 Up 10:36:23 - 11:06:23 8922
Beatty 10:51:18 -47.5 Dark Up 33.2 243.9 Up 10:36:18 - 11:06:18 8875
Indian Springs 10:51:15 -46.7 Dark Up 32.6 245.0 Up 10:36:15 - 11:06:15 8843
Henderson 10:51:12 -46.2 Dark Up 32.3 245.9 Up 10:36:12 - 11:06:12 8791
CPSLO 10:51:25 -50.8 Dark Up 36.7 241.6 Up 10:36:25 - 11:06:25 8733
Patrick 10:51:09 -45.3 Dark Up 31.7 247.1 Up 10:36:09 - 11:06:09 8730
Kingman/Dolan Springs 10:51:09 -45.5 Dark Up 32.0 247.1 Up 10:36:09 - 11:06:09 8709
Laughlin/Bullhead City 10:51:10 -45.9 Dark Up 32.4 246.7 Up 10:36:10 - 11:06:10 8707
Mohave Valley 10:51:09 -45.9 Dark Up 32.5 246.8 Up 10:36:09 - 11:06:09 8681
Lake Havasu City 10:51:08 -45.7 Dark Up 32.5 247.3 Up 10:36:08 - 11:06:08 8643
Wildwood 10:51:18 -49.2 Dark Up 35.8 244.1 Up 10:36:18 - 11:06:18 8612
Parker 10:51:07 -45.7 Dark Up 32.6 247.5 Up 10:36:07 - 11:06:07 8609
Idyllwild 10:51:13 -47.7 Dark Up 34.6 245.9 Up 10:36:13 - 11:06:13 8574
George/Scottsdale 10:51:01 -43.7 Dark Up 30.9 249.5 Up 10:36:01 - 11:06:01 8564
Blythe 10:51:07 -45.9 Dark Up 33.0 247.6 Up 10:36:07 - 11:06:07 8558
Calipatria 10:51:09 -46.7 Dark Up 33.9 247.2 Up 10:36:09 - 11:06:09 8512
Yuma 10:51:06 -46.0 Dark Up 33.4 248.1 Up 10:36:06 - 11:06:06 8469

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 11VZ24, (2024/12/16 10:54UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  7.98  23
34Del Ori      05:32:00.4 -00:17:57  2.2  2.31  33
PPM 149035     05:29:54.7 +01:47:22  5.4  0.47  31
PPM 149086     05:31:29.8 +01:41:24  7.6  0.32  31
PPM 149088     05:31:33.0 +01:56:28  9.8  0.06  31
11VZ24         05:31:35.5 +02:00:19 16.6        31
Positions are for J2000

Event circumstances last updated at 2021/03/01 00:56:01 UT

Marc W. Buie, Southwest Research Institute

RECON