RECON: TNO occultation with 11QF99

Event between 11QF99 and star GA1040:01439290 with event index number of 2124026

Geocentric closest approach at 2024/11/15 11:13:38 UTC

J2000 position of star is 06:02:14.3 +15:13:55
Equinox of date position of star is 06:03:30.8 +15:13:49
Stellar brightness G=13.6, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 44 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=22.2

[RECON map]
TNO is 17.0 AU from the Sun and 16.2 AU from the Earth.
The TNO is moving 17.0 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 428 seconds.
The 1-sigma cross-track error in the shadow position is 1549 km.
The sky-plane scale is 11782.5 km/arcsec.

The TNO has an absolute magnitude Hv=9.8
Diameter=66.4 km assuming a 5% albedo -- 3.9 sec chord
Diameter=27.1 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 11QF99, (2024/11/15 11:14UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:31.2 +07:24:35  0.4  8.01  45
Alhena         06:39:08.9 +16:22:33  1.9  8.61  52
69 Ori         06:13:29.3 +16:07:21  4.7  2.53  46
PPM 121788     06:03:28.4 +15:12:17  8.2  0.05  44
11QF99         06:03:39.8 +15:13:48 13.6        45
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 2.1 sigma about the mid-time.
The median site spacing is 26.6 km RECON observability=1.0 and success probability=30.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 11:11:12 -29.5 Dark Up 47.6 219.4 Up 10:56:12 - 11:26:12 1830
Kamloops 11:12:07 -38.4 Dark Up 53.2 199.8 Up 10:57:07 - 11:27:07 1804
Kelowna 11:12:03 -38.1 Dark Up 53.8 201.6 Up 10:57:03 - 11:27:03 1720
Peachland 11:12:04 -38.3 Dark Up 54.0 201.2 Up 10:57:04 - 11:27:04 1713
Summerland 11:12:04 -38.3 Dark Up 54.1 201.4 Up 10:57:04 - 11:27:04 1698
Penticton 11:12:04 -38.3 Dark Up 54.1 201.6 Up 10:57:04 - 11:27:04 1690
Oliver 11:12:03 -38.4 Dark Up 54.4 201.8 Up 10:57:03 - 11:27:03 1658
Anarchist Mountain Observatory 11:12:03 -38.3 Dark Up 54.6 202.2 Up 10:57:03 - 11:27:03 1640
Victoria 11:12:20 -41.0 Dark Up 55.9 195.9 Up 10:57:20 - 11:27:20 1637
Tonasket 11:12:03 -38.5 Dark Up 54.9 202.2 Up 10:57:03 - 11:27:03 1611
Okanogan 11:12:04 -38.6 Dark Up 55.2 202.2 Up 10:57:04 - 11:27:04 1581
Brewster 11:12:04 -38.8 Dark Up 55.5 202.0 Up 10:57:04 - 11:27:04 1557
Manson/Chelan 11:12:06 -39.1 Dark Up 55.8 201.5 Up 10:57:06 - 11:27:06 1542
Wenatchee 11:12:07 -39.4 Dark Up 56.3 201.5 Up 10:57:07 - 11:27:07 1498
Ellensburg 11:12:08 -39.6 Dark Up 56.7 201.4 Up 10:57:08 - 11:27:08 1461
Yakima 11:12:08 -39.8 Dark Up 57.1 201.6 Up 10:57:08 - 11:27:08 1423
Toppenish/White Swan 11:12:07 -39.7 Dark Up 57.3 202.0 Up 10:57:07 - 11:27:07 1400
Goldendale 11:12:09 -40.1 Dark Up 57.9 201.6 Up 10:57:09 - 11:27:09 1351
PNWRO 11:12:01 -38.8 Dark Up 57.2 204.7 Up 10:57:01 - 11:27:01 1349
The Dalles 11:12:11 -40.4 Dark Up 58.2 201.1 Up 10:57:11 - 11:27:11 1334
Maupin 11:12:10 -40.5 Dark Up 58.5 201.5 Up 10:57:10 - 11:27:10 1292
Sisters 11:12:13 -41.0 Dark Up 59.5 201.2 Up 10:57:13 - 11:27:13 1212
Bend 11:12:12 -40.9 Dark Up 59.6 201.8 Up 10:57:12 - 11:27:12 1186
Oregon Observatory 11:12:13 -41.1 Dark Up 59.8 201.7 Up 10:57:13 - 11:27:13 1171
North Lake 11:12:10 -40.8 Dark Up 60.3 203.1 Up 10:57:10 - 11:27:10 1101
Chiloquin 11:12:15 -41.7 Dark Up 61.2 201.7 Up 10:57:15 - 11:27:15 1046
Klamath Falls 11:12:14 -41.7 Dark Up 61.5 202.1 Up 10:57:14 - 11:27:14 1011
Lakeview 11:12:08 -40.7 Dark Up 61.1 204.8 Up 10:57:08 - 11:27:08 990
Cedarville 11:12:07 -40.7 Dark Up 61.6 205.7 Up 10:57:07 - 11:27:07 922
Fall River/Burney 11:12:13 -41.7 Dark Up 62.4 203.7 Up 10:57:13 - 11:27:13 888
Susanville 11:12:10 -41.2 Dark Up 62.8 205.7 Up 10:57:10 - 11:27:10 816
Greenville 11:12:11 -41.5 Dark Up 63.1 205.3 Up 10:57:11 - 11:27:11 791
Gimple 11:12:11 -41.5 Dark Up 63.1 205.5 Up 10:57:11 - 11:27:11 790
Quincy 11:12:11 -41.5 Dark Up 63.3 205.5 Up 10:57:11 - 11:27:11 771
Portola 11:12:09 -41.2 Dark Up 63.3 206.6 Up 10:57:09 - 11:27:09 752
Reno 11:12:06 -40.8 Dark Up 63.3 208.1 Up 10:57:06 - 11:27:06 718
Carson City 11:12:06 -40.8 Dark Up 63.6 208.5 Up 10:57:06 - 11:27:06 681
Dunrhomin 11:10:58 -29.7 Dark Up 55.6 231.1 Up 10:55:58 - 11:25:58 665
Gardnerville 11:12:06 -40.8 Dark Up 63.8 208.8 Up 10:57:06 - 11:27:06 655
Yerington 11:12:03 -40.4 Dark Up 63.5 209.9 Up 10:57:03 - 11:27:03 653
CU-SBO 11:10:59 -29.8 Dark Up 55.9 231.2 Up 10:55:59 - 11:25:59 640
Hawthorne 11:12:01 -40.0 Dark Up 63.7 211.4 Up 10:57:01 - 11:27:01 600
Lee Vining 11:12:03 -40.5 Dark Up 64.4 211.1 Up 10:57:03 - 11:27:03 547
Tonopah 11:11:54 -39.0 Dark Up 63.5 214.6 Up 10:56:54 - 11:26:54 536
Bishop 11:12:00 -40.0 Dark Up 64.6 213.2 Up 10:57:00 - 11:27:00 477
Beatty 11:11:52 -38.8 Dark Up 64.2 216.9 Up 10:56:52 - 11:26:52 411
Indian Springs 11:11:47 -38.0 Dark Up 64.0 219.3 Up 10:56:47 - 11:26:47 365
Henderson 11:11:43 -37.4 Dark Up 64.0 221.3 Up 10:56:43 - 11:26:43 302
Patrick 11:11:38 -36.6 Dark Up 63.9 224.1 Up 10:56:38 - 11:26:38 225
Laughlin/Bullhead City 11:11:41 -37.2 Dark Up 64.5 223.2 Up 10:56:41 - 11:26:41 206
Kingman/Dolan Springs 11:11:39 -36.7 Dark Up 64.1 224.1 Up 10:56:39 - 11:26:39 203
Mohave Valley 11:11:41 -37.2 Dark Up 64.6 223.6 Up 10:56:41 - 11:26:41 177
Wildwood 11:12:02 -40.5 Dark Up 67.4 217.0 Up 10:57:02 - 11:27:02 138
Lake Havasu City 11:11:40 -37.0 Dark Up 64.8 224.7 Up 10:56:40 - 11:26:40 132
Parker 11:11:40 -37.0 Dark Up 65.0 225.2 Up 10:56:40 - 11:26:40 95
Idyllwild 11:11:52 -38.9 Dark Up 66.7 221.3 Up 10:56:52 - 11:26:52 78
George/Scottsdale 11:11:28 -35.0 Dark Up 63.8 230.0 Up 10:56:28 - 11:26:28 27
Calipatria 11:11:46 -38.0 Dark Up 66.5 224.6 Up 10:56:46 - 11:26:46 0
Yuma 11:11:42 -37.3 Dark Up 66.2 226.9 Up 10:56:42 - 11:26:42 -56

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 11QF99, (2024/11/15 11:14UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  8.01  45
Alhena         06:37:42.8 +16:23:57  1.9  8.61  52
69 Ori         06:12:03.2 +16:07:49  4.7  2.53  46
PPM 121788     06:02:02.8 +15:12:23  8.2  0.05  44
11QF99         06:02:14.3 +15:13:55 13.6        44
Positions are for J2000

Event circumstances last updated at 2022/03/30 23:17:23 UT

Marc W. Buie, Southwest Research Institute

RECON