RECON: TNO occultation with 11QF99

Event between 11QF99 and star GA1040:01439290 with event index number of 1400624

Geocentric closest approach at 2024/11/15 11:11:03 UTC

J2000 position of star is 06:02:14.3 +15:13:55
Equinox of date position of star is 06:03:21.1 +15:13:50
Stellar brightness G=13.6, use SENSEUP=64
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 451 seconds.
The 1-sigma cross-track error in the shadow position is 1453 km.
The sky-plane scale is 11782.6 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 11:11UT)
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 2.0 sigma about the mid-time.
The median site spacing is 22.6 km RECON observability=1.0 and success probability=33.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 11:09:31 -38.5 Dark Up 53.9 200.7 Up 10:54:31 - 11:24:31 734
Summerland 11:09:33 -38.7 Dark Up 54.2 200.4 Up 10:54:33 - 11:24:33 709
Penticton 11:09:32 -38.7 Dark Up 54.3 200.6 Up 10:54:32 - 11:24:32 702
Okanagan Falls 11:09:32 -38.7 Dark Up 54.4 200.7 Up 10:54:32 - 11:24:32 684
Oliver 11:09:32 -38.8 Dark Up 54.6 200.8 Up 10:54:32 - 11:24:32 669
Anarchist Mountain Observatory 11:09:31 -38.7 Dark Up 54.7 201.2 Up 10:54:31 - 11:24:31 651
Oroville 11:09:31 -38.8 Dark Up 54.8 201.1 Up 10:54:31 - 11:24:31 645
Tonasket 11:09:31 -38.8 Dark Up 55.0 201.2 Up 10:54:31 - 11:24:31 623
Okanogan 11:09:32 -39.0 Dark Up 55.4 201.1 Up 10:54:32 - 11:24:32 593
Brewster 11:09:33 -39.2 Dark Up 55.7 201.0 Up 10:54:33 - 11:24:33 569
Manson/Chelan 11:09:35 -39.5 Dark Up 55.9 200.5 Up 10:54:35 - 11:24:35 553
Entiat 11:09:35 -39.6 Dark Up 56.2 200.5 Up 10:54:35 - 11:24:35 533
Wenatchee 11:09:35 -39.8 Dark Up 56.4 200.4 Up 10:54:35 - 11:24:35 510
Ellensburg 11:09:37 -40.0 Dark Up 56.9 200.3 Up 10:54:37 - 11:24:37 473
Yakima 11:09:37 -40.2 Dark Up 57.3 200.5 Up 10:54:37 - 11:24:37 434
Toppenish/White Swan 11:09:36 -40.1 Dark Up 57.4 200.9 Up 10:54:36 - 11:24:36 412
Pasco 11:09:30 -39.3 Dark Up 57.2 203.1 Up 10:54:30 - 11:24:30 386
Goldendale 11:09:38 -40.6 Dark Up 58.0 200.5 Up 10:54:38 - 11:24:38 364
PNWRO 11:09:30 -39.2 Dark Up 57.4 203.6 Up 10:54:30 - 11:24:30 360
George/Umatilla 11:09:31 -39.6 Dark Up 57.6 202.9 Up 10:54:31 - 11:24:31 356
The Dalles 11:09:40 -40.9 Dark Up 58.3 200.0 Up 10:54:40 - 11:24:40 346
Maupin 11:09:39 -40.9 Dark Up 58.7 200.4 Up 10:54:39 - 11:24:39 304
Madras/Culver 11:09:39 -41.1 Dark Up 59.2 200.6 Up 10:54:39 - 11:24:39 252
Sisters 11:09:42 -41.5 Dark Up 59.6 200.0 Up 10:54:42 - 11:24:42 224
Redmond 11:09:40 -41.2 Dark Up 59.6 200.7 Up 10:54:40 - 11:24:40 217
Bend 11:09:41 -41.4 Dark Up 59.8 200.6 Up 10:54:41 - 11:24:41 198
Oregon Observatory 11:09:41 -41.5 Dark Up 60.0 200.5 Up 10:54:41 - 11:24:41 183
La Pine/Gilchrist 11:09:42 -41.6 Dark Up 60.2 200.5 Up 10:54:42 - 11:24:42 163
North Lake 11:09:39 -41.3 Dark Up 60.5 201.9 Up 10:54:39 - 11:24:39 113
Chiloquin 11:09:44 -42.1 Dark Up 61.3 200.5 Up 10:54:44 - 11:24:44 58
Paisley 11:09:37 -41.2 Dark Up 60.9 202.9 Up 10:54:37 - 11:24:37 54
Klamath Falls 11:09:43 -42.1 Dark Up 61.6 200.9 Up 10:54:43 - 11:24:43 23
Lakeview 11:09:37 -41.1 Dark Up 61.3 203.7 Up 10:54:37 - 11:24:37 2
Tulelake 11:09:42 -42.0 Dark Up 61.8 201.7 Up 10:54:42 - 11:24:42 -7
Cedarville 11:09:36 -41.1 Dark Up 61.8 204.5 Up 10:54:36 - 11:24:36 -66
Fall River/Burney 11:09:42 -42.1 Dark Up 62.6 202.5 Up 10:54:42 - 11:24:42 -99
Susanville 11:09:39 -41.7 Dark Up 63.0 204.4 Up 10:54:39 - 11:24:39 -172
Greenville 11:09:40 -42.0 Dark Up 63.3 204.1 Up 10:54:40 - 11:24:40 -196
Gimple 11:09:40 -41.9 Dark Up 63.3 204.2 Up 10:54:40 - 11:24:40 -197
Quincy 11:09:40 -42.0 Dark Up 63.5 204.2 Up 10:54:40 - 11:24:40 -217
Portola 11:09:38 -41.7 Dark Up 63.5 205.3 Up 10:54:38 - 11:24:38 -235
Reno 11:09:35 -41.3 Dark Up 63.5 206.8 Up 10:54:35 - 11:24:35 -270
Carson City 11:09:35 -41.3 Dark Up 63.8 207.2 Up 10:54:35 - 11:24:35 -307
Gardnerville 11:09:35 -41.3 Dark Up 64.0 207.5 Up 10:54:35 - 11:24:35 -333
Yerington 11:09:32 -40.9 Dark Up 63.8 208.7 Up 10:54:32 - 11:24:32 -335
Niwot 11:08:27 -30.2 Dark Up 56.1 230.4 Up 10:53:27 - 11:23:27 -342
SwRI 11:08:27 -30.3 Dark Up 56.2 230.3 Up 10:53:27 - 11:23:27 -352
Hawthorne 11:09:30 -40.5 Dark Up 64.0 210.2 Up 10:54:30 - 11:24:30 -388
Lee Vining 11:09:32 -41.0 Dark Up 64.6 209.8 Up 10:54:32 - 11:24:32 -441
Tonopah 11:09:23 -39.5 Dark Up 63.8 213.4 Up 10:54:23 - 11:24:23 -453
Bishop 11:09:29 -40.5 Dark Up 64.9 211.9 Up 10:54:29 - 11:24:29 -511
Beatty 11:09:21 -39.3 Dark Up 64.5 215.6 Up 10:54:21 - 11:24:21 -578
Lone Pine 11:09:28 -40.3 Dark Up 65.4 213.4 Up 10:54:28 - 11:24:28 -594
Indian Springs 11:09:16 -38.5 Dark Up 64.3 218.1 Up 10:54:16 - 11:24:16 -623
Henderson 11:09:12 -37.9 Dark Up 64.4 220.1 Up 10:54:12 - 11:24:12 -687
CPSLO 11:09:41 -42.5 Dark Up 67.5 209.5 Up 10:54:41 - 11:24:41 -696
Searchlight/Boulder City 11:09:12 -37.9 Dark Up 64.8 221.0 Up 10:54:12 - 11:24:12 -747
Patrick 11:09:07 -37.1 Dark Up 64.2 223.0 Up 10:54:07 - 11:24:07 -764
Laughlin/Bullhead City 11:09:10 -37.7 Dark Up 64.8 222.1 Up 10:54:10 - 11:24:10 -782
Kingman/Dolan Springs 11:09:08 -37.3 Dark Up 64.5 223.0 Up 10:54:08 - 11:24:08 -785
DCO 11:09:03 -36.5 Dark Up 64.1 224.7 Up 10:54:03 - 11:24:03 -803
Mohave Valley 11:09:10 -37.7 Dark Up 65.0 222.5 Up 10:54:10 - 11:24:10 -811
Wildwood 11:09:31 -41.0 Dark Up 67.7 215.6 Up 10:54:31 - 11:24:31 -849
Lake Havasu City 11:09:09 -37.5 Dark Up 65.2 223.5 Up 10:54:09 - 11:24:09 -856
Parker 11:09:09 -37.5 Dark Up 65.4 224.1 Up 10:54:09 - 11:24:09 -893
Idyllwild 11:09:21 -39.5 Dark Up 67.0 220.1 Up 10:54:21 - 11:24:21 -910
Blythe 11:09:11 -37.7 Dark Up 65.9 224.3 Up 10:54:11 - 11:24:11 -946
Calipatria 11:09:16 -38.5 Dark Up 66.8 223.4 Up 10:54:16 - 11:24:16 -988
Yuma 11:09:11 -37.8 Dark Up 66.6 225.8 Up 10:54:11 - 11:24:11 -1044

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 11:11UT)
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 2019/06/08 09:26:49 UT

Marc W. Buie, Southwest Research Institute

RECON