RECON: TNO occultation with 470599

Event between (470599) 08OG19 and star GA0800:21622305 with event index number of 1413370

Geocentric closest approach at 2024/08/11 07:01:30 UTC

J2000 position of star is 21:41:14.8 -08:58:32
Equinox of date position of star is 21:42:18.1 -08:53:05
Stellar brightness G=15.5, use SENSEUP=128
Star is 111 degrees from the moon. Moon is 37% illuminated.
TNO apparent brightness V=20.6

[RECON map]
TNO is 39.2 AU from the Sun and 38.2 AU from the Earth.
The TNO is moving 23.8 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 400 seconds.
The 1-sigma cross-track error in the shadow position is 3526 km.
The sky-plane scale is 27714.6 km/arcsec.

The TNO has an absolute magnitude Hv=4.7
Diameter=691.9 km assuming a 5% albedo -- 29.1 sec chord
Diameter=282.4 km assuming a 30% albedo -- 11.9 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 470599, (2024/08/11 07:02UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:59:00.2 -29:29:28  1.2 27.32 117
47 Cap         21:47:34.9 -09:09:41  6.0  1.28 112
PPM 205477     21:42:16.4 -09:01:45  7.9  0.18 110
470599         21:42:33.4 -08:51:46 15.5       111
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 12.4 km RECON observability=1.0 and success probability=8.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 07:01:14 -24.1 Dark Down 29.0 153.6 Low 06:46:14 - 07:16:14 2903
Clarence Fulton 07:01:00 -23.3 Dark Down 28.5 158.4 Low 06:46:00 - 07:16:00 2894
Kelowna 07:01:00 -23.6 Dark Down 28.8 158.1 Low 06:46:00 - 07:16:00 2880
Summerland 07:01:02 -23.8 Dark Down 29.0 157.9 Low 06:46:02 - 07:16:02 2873
Penticton 07:01:02 -23.9 Dark Down 29.1 158.0 Low 06:46:02 - 07:16:02 2867
Oliver 07:01:03 -24.3 Dark Down 29.4 157.9 Low 06:46:03 - 07:16:03 2852
Anarchist Mountain Observatory 07:01:03 -24.5 Dark Down 29.6 158.1 Low 06:46:03 - 07:16:03 2840
Tonasket 07:01:03 -24.7 Dark Down 29.9 157.9 Low 06:46:03 - 07:16:03 2827
Okanogan 07:01:03 -25.0 Dark Down 30.2 157.7 Up 06:46:03 - 07:16:03 2815
Brewster 07:01:05 -25.3 Dark Down 30.4 157.4 Up 06:46:05 - 07:16:05 2806
Manson/Chelan 07:01:07 -25.4 Dark Down 30.5 157.0 Up 06:46:07 - 07:16:07 2805
Entiat 07:01:07 -25.6 Dark Down 30.6 156.9 Up 06:46:07 - 07:16:07 2796
Wenatchee 07:01:08 -25.8 Dark Down 30.9 156.7 Up 06:46:08 - 07:16:08 2786
Ellensburg 07:01:10 -26.2 Dark Down 31.2 156.4 Up 06:46:10 - 07:16:10 2771
Yakima 07:01:11 -26.5 Dark Down 31.5 156.2 Up 06:46:11 - 07:16:11 2752
Toppenish/White Swan 07:01:11 -26.8 Dark Down 31.8 156.4 Up 06:46:11 - 07:16:11 2737
Goldendale 07:01:13 -27.2 Dark Down 32.2 155.8 Up 06:46:13 - 07:16:13 2719
The Dalles 07:01:14 -27.4 Dark Down 32.3 155.3 Up 06:46:14 - 07:16:14 2716
Pasco 07:01:06 -27.2 Dark Down 32.2 157.8 Up 06:46:06 - 07:16:06 2702
Maupin 07:01:15 -27.8 Dark Down 32.7 155.3 Up 06:46:15 - 07:16:15 2692
PNWRO 07:01:07 -27.4 Dark Down 32.5 158.0 Up 06:46:07 - 07:16:07 2685
Sisters 07:01:18 -28.5 Dark Down 33.3 154.5 Up 06:46:18 - 07:16:18 2659
Redmond 07:01:17 -28.6 Dark Down 33.5 155.0 Up 06:46:17 - 07:16:17 2648
Bend 07:01:18 -28.8 Dark Down 33.6 154.8 Up 06:46:18 - 07:16:18 2640
Oregon Observatory 07:01:19 -28.9 Dark Down 33.8 154.6 Up 06:46:19 - 07:16:19 2634
La Pine/Gilchrist 07:01:19 -29.1 Dark Down 33.9 154.4 Up 06:46:19 - 07:16:19 2625
North Lake 07:01:19 -29.6 Dark Down 34.5 155.0 Up 06:46:19 - 07:16:19 2587
Klamath Falls 07:01:23 -30.4 Dark Down 35.1 153.7 Up 06:46:23 - 07:16:23 2552
Paisley 07:01:19 -30.3 Dark Down 35.1 155.3 Up 06:46:19 - 07:16:19 2548
Lakeview 07:01:19 -30.8 Dark Down 35.6 155.3 Up 06:46:19 - 07:16:19 2516
Fall River/Burney 07:01:25 -31.6 Dark Down 36.3 153.8 Up 06:46:25 - 07:16:25 2476
Cedarville 07:01:20 -31.4 Dark Down 36.3 155.3 Up 06:46:20 - 07:16:20 2474
Susanville 07:01:23 -32.4 Dark Down 37.1 154.4 Up 06:46:23 - 07:16:23 2421
Greenville 07:01:25 -32.6 Dark Down 37.3 154.0 Up 06:46:25 - 07:16:25 2412
Gimple 07:01:25 -32.6 Dark Down 37.3 154.1 Up 06:46:25 - 07:16:25 2410
Quincy 07:01:26 -32.8 Dark Down 37.5 153.9 Up 06:46:26 - 07:16:26 2400
Portola 07:01:24 -33.0 Dark Down 37.8 154.5 Up 06:46:24 - 07:16:24 2381
Reno 07:01:22 -33.4 Dark Down 38.2 155.1 Up 06:46:22 - 07:16:22 2348
Carson City 07:01:23 -33.8 Dark Down 38.5 155.0 Up 06:46:23 - 07:16:23 2326
Gardnerville 07:01:24 -34.0 Dark Down 38.8 155.0 Up 06:46:24 - 07:16:24 2310
Yerington 07:01:21 -34.1 Dark Down 38.9 155.7 Up 06:46:21 - 07:16:21 2298
Hawthorne 07:01:21 -34.7 Dark Down 39.5 156.2 Up 06:46:21 - 07:16:21 2255
Lee Vining 07:01:24 -35.1 Dark Down 39.9 155.4 Up 06:46:24 - 07:16:24 2233
Tonopah 07:01:18 -35.4 Dark Down 40.4 157.8 Up 06:46:18 - 07:16:18 2189
Bishop 07:01:23 -35.8 Dark Down 40.7 156.1 Up 06:46:23 - 07:16:23 2175
Beatty 07:01:18 -36.6 Dark Down 41.6 158.0 Up 06:46:18 - 07:16:18 2101
CPSLO 07:01:34 -37.2 Dark Down 41.7 152.6 Up 06:46:34 - 07:16:34 2100
Indian Springs 07:01:15 -37.2 Dark Down 42.2 159.2 Up 06:46:15 - 07:16:15 2049
Henderson 07:01:14 -37.8 Dark Down 42.9 159.9 Up 06:46:14 - 07:16:14 1994
Niwot 07:00:34 -34.8 Dark Down 40.7 173.4 Up 06:45:34 - 07:15:34 1979
SwRI 07:00:35 -34.9 Dark Down 40.8 173.2 Up 06:45:35 - 07:15:35 1975
Wildwood 07:01:30 -38.9 Dark Down 43.6 154.7 Up 06:46:30 - 07:16:30 1963
Searchlight/Boulder City 07:01:15 -38.4 Dark Down 43.4 159.8 Up 06:46:15 - 07:16:15 1953
Laughlin/Bullhead City 07:01:14 -38.8 Dark Down 43.8 160.2 Up 06:46:14 - 07:16:14 1923
Patrick 07:01:11 -38.6 Dark Down 43.8 161.2 Up 06:46:11 - 07:16:11 1919
Kingman/Dolan Springs 07:01:12 -38.8 Dark Down 43.9 160.9 Up 06:46:12 - 07:16:12 1910
Mohave Valley 07:01:14 -39.0 Dark Down 44.1 160.1 Up 06:46:14 - 07:16:14 1904
Idyllwild 07:01:24 -39.7 Dark Down 44.5 156.9 Up 06:46:24 - 07:16:24 1885
DCO 07:01:10 -39.1 Dark Down 44.3 162.0 Up 06:46:10 - 07:16:10 1878
Lake Havasu City 07:01:15 -39.5 Dark Down 44.5 160.3 Up 06:46:15 - 07:16:15 1869
Parker 07:01:15 -39.8 Dark Down 44.9 160.2 Up 06:46:15 - 07:16:15 1843
Blythe 07:01:17 -40.3 Dark Down 45.3 159.7 Up 06:46:17 - 07:16:17 1815
Calipatria 07:01:21 -40.6 Dark Down 45.5 158.2 Up 06:46:21 - 07:16:21 1807
Yuma 07:01:19 -41.2 Dark Down 46.1 159.3 Up 06:46:19 - 07:16:19 1750
George/Scottsdale 07:01:07 -40.6 Dark Down 45.9 163.4 Up 06:46:07 - 07:16:07 1741

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 470599, (2024/08/11 07:02UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:23  1.2 27.32 117
47 Cap         21:46:16.3 -09:16:33  6.0  1.28 112
PPM 205477     21:40:57.7 -09:08:31  7.9  0.18 110
470599         21:41:14.8 -08:58:32 15.5       110
Positions are for J2000

Event circumstances last updated at 2019/10/24 21:50:22 UT

Marc W. Buie, Southwest Research Institute

RECON