RECON: TNO occultation with 342842

Event between (342842) 08YB3 and star GA1260:06763240 with event index number of 1418494

Geocentric closest approach at 2024/08/23 08:10:11 UTC

J2000 position of star is 19:49:38.3 +36:00:43
Equinox of date position of star is 19:50:22.4 +36:03:47
Stellar brightness G=15.7, use SENSEUP=128
Star is 77 degrees from the moon. Moon is 82% illuminated.
TNO apparent brightness V=21.4

[RECON map]
TNO is 15.5 AU from the Sun and 14.9 AU from the Earth.
The TNO is moving 33.0 km/sec on the sky relative to the star, or, 11.0 arcsec/hr.
The 1-sigma error in the time of the event is 48 seconds.
The 1-sigma cross-track error in the shadow position is 1766 km.
The sky-plane scale is 10811.4 km/arcsec.

The TNO has an absolute magnitude Hv=9.3
Diameter=83.2 km assuming a 5% albedo -- 2.5 sec chord
Diameter=34.0 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 342842, (2024/08/23 08:10UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:16.4 +45:22:10  1.3 13.47  68
37Gam Cyg      20:23:06.8 +40:20:12  2.2  7.68  71
21Eta Cyg      19:57:13.9 +35:09:01  3.9  1.64  76
PPM 083646     19:51:14.4 +36:09:43  7.1  0.16  77
342842         19:50:32.9 +36:04:31 15.7        77
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 5.0 sigma about the mid-time.
The median site spacing is 24.7 km RECON observability=1.0 and success probability=13.6%
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 08:08:34 -28.5 Dark Up 59.6 256.6 Up 08:04:04 - 08:13:04 -2262
Kelowna 08:08:35 -28.9 Dark Up 59.8 257.1 Up 08:04:05 - 08:13:05 -2299
Summerland 08:08:35 -29.2 Dark Up 59.9 257.3 Up 08:04:05 - 08:13:05 -2323
Penticton 08:08:35 -29.2 Dark Up 59.9 257.6 Up 08:04:05 - 08:13:05 -2333
Victoria 08:08:44 -30.2 Dark Up 62.6 255.4 Up 08:04:14 - 08:13:14 -2351
Oliver 08:08:36 -29.6 Dark Up 60.0 258.2 Up 08:04:06 - 08:13:06 -2370
Anarchist Mountain Observatory 08:08:35 -29.7 Dark Up 59.9 258.7 Up 08:04:05 - 08:13:05 -2393
Tonasket 08:08:36 -30.0 Dark Up 60.0 259.1 Up 08:04:06 - 08:13:06 -2424
Okanogan 08:08:36 -30.4 Dark Up 60.1 259.5 Up 08:04:06 - 08:13:06 -2456
Brewster 08:08:37 -30.7 Dark Up 60.3 259.8 Up 08:04:07 - 08:13:07 -2481
Manson/Chelan 08:08:38 -30.9 Dark Up 60.6 259.8 Up 08:04:08 - 08:13:08 -2495
Entiat 08:08:38 -31.1 Dark Up 60.7 260.1 Up 08:04:08 - 08:13:08 -2517
Wenatchee 08:08:39 -31.4 Dark Up 60.8 260.5 Up 08:04:09 - 08:13:09 -2541
Ellensburg 08:08:40 -31.8 Dark Up 61.0 261.0 Up 08:04:10 - 08:13:10 -2580
Yakima 08:08:40 -32.2 Dark Up 61.1 261.7 Up 08:04:10 - 08:13:10 -2622
Toppenish/White Swan 08:08:40 -32.4 Dark Up 61.0 262.3 Up 08:04:10 - 08:13:10 -2649
Pasco 08:08:38 -32.5 Dark Up 60.1 263.6 Up 08:04:08 - 08:13:08 -2691
Goldendale 08:08:41 -32.9 Dark Up 61.3 262.9 Up 08:04:11 - 08:13:11 -2697
The Dalles 08:08:42 -33.2 Dark Up 61.6 263.0 Up 08:04:12 - 08:13:12 -2712
PNWRO 08:08:37 -32.7 Dark Up 60.0 264.2 Up 08:04:07 - 08:13:07 -2722
Maupin 08:08:43 -33.6 Dark Up 61.6 263.9 Up 08:04:13 - 08:13:13 -2759
Sisters 08:08:44 -34.5 Dark Up 62.0 265.1 Up 08:04:14 - 08:13:14 -2839
Redmond 08:08:44 -34.5 Dark Up 61.7 265.5 Up 08:04:14 - 08:13:14 -2851
Bend 08:08:44 -34.7 Dark Up 61.8 265.7 Up 08:04:14 - 08:13:14 -2870
Oregon Observatory 08:08:44 -34.9 Dark Up 62.0 266.0 Up 08:04:14 - 08:13:14 -2885
La Pine/Gilchrist 08:08:45 -35.1 Dark Up 62.0 266.3 Up 08:04:15 - 08:13:15 -2905
North Lake 08:08:45 -35.5 Dark Up 61.6 267.6 Up 08:04:15 - 08:13:15 -2966
Paisley 08:08:44 -36.1 Dark Up 61.3 268.8 Up 08:04:14 - 08:13:14 -3032
Klamath Falls 08:08:47 -36.5 Dark Up 62.3 268.9 Up 08:04:17 - 08:13:17 -3049
Lakeview 08:08:45 -36.6 Dark Up 61.2 269.9 Up 08:04:15 - 08:13:15 -3090
Cedarville 08:08:45 -37.2 Dark Up 61.1 271.2 Up 08:04:15 - 08:13:15 -3163
Fall River/Burney 08:08:48 -37.7 Dark Up 62.0 271.3 Up 08:04:18 - 08:13:18 -3182
Susanville 08:08:47 -38.3 Dark Up 61.4 273.0 Up 08:04:17 - 08:13:17 -3267
Greenville 08:08:48 -38.6 Dark Up 61.6 273.3 Up 08:04:18 - 08:13:18 -3287
Gimple 08:08:48 -38.6 Dark Up 61.5 273.3 Up 08:04:18 - 08:13:18 -3290
Quincy 08:08:48 -38.8 Dark Up 61.6 273.7 Up 08:04:18 - 08:13:18 -3308
Portola 08:08:48 -39.0 Dark Up 61.2 274.2 Up 08:04:18 - 08:13:18 -3334
Reno 08:08:46 -39.2 Dark Up 60.7 275.0 Up 08:04:16 - 08:13:16 -3378
Carson City 08:08:47 -39.6 Dark Up 60.6 275.6 Up 08:04:17 - 08:13:17 -3416
Gardnerville 08:08:47 -39.8 Dark Up 60.6 276.1 Up 08:04:17 - 08:13:17 -3442
Yerington 08:08:46 -39.7 Dark Up 60.1 276.3 Up 08:04:16 - 08:13:16 -3452
Hawthorne 08:08:45 -40.2 Dark Up 59.7 277.3 Up 08:04:15 - 08:13:15 -3513
Lee Vining 08:08:47 -40.8 Dark Up 60.0 278.1 Up 08:04:17 - 08:13:17 -3560
Niwot 08:08:16 -36.5 Dark Up 49.7 281.2 Up 08:03:46 - 08:12:46 -3565
SwRI 08:08:16 -36.6 Dark Up 49.8 281.3 Up 08:03:46 - 08:12:46 -3575
Tonopah 08:08:43 -40.5 Dark Up 58.5 278.7 Up 08:04:13 - 08:13:13 -3595
Bishop 08:08:46 -41.3 Dark Up 59.3 279.4 Up 08:04:16 - 08:13:16 -3639
Beatty 08:08:43 -41.7 Dark Up 58.0 280.7 Up 08:04:13 - 08:13:13 -3725
Indian Springs 08:08:41 -41.9 Dark Up 57.0 281.6 Up 08:04:11 - 08:13:11 -3783
CPSLO 08:08:53 -43.5 Dark Up 60.7 282.1 Up 08:04:23 - 08:13:23 -3790
Henderson 08:08:40 -42.3 Dark Up 56.4 282.6 Up 08:04:10 - 08:13:10 -3852
Searchlight/Boulder City 08:08:41 -42.9 Dark Up 56.2 283.5 Up 08:04:11 - 08:13:11 -3913
Patrick 08:08:38 -42.8 Dark Up 55.4 283.9 Up 08:04:08 - 08:13:08 -3940
Laughlin/Bullhead City 08:08:40 -43.1 Dark Up 55.9 284.0 Up 08:04:10 - 08:13:10 -3951
Kingman/Dolan Springs 08:08:39 -43.0 Dark Up 55.5 284.1 Up 08:04:09 - 08:13:09 -3959
Wildwood 08:08:51 -44.6 Dark Up 58.8 284.7 Up 08:04:21 - 08:13:21 -3968
Mohave Valley 08:08:40 -43.4 Dark Up 55.8 284.4 Up 08:04:10 - 08:13:10 -3979
DCO 08:08:37 -43.0 Dark Up 54.7 284.5 Up 08:04:07 - 08:13:07 -3985
Lake Havasu City 08:08:41 -43.8 Dark Up 55.5 285.1 Up 08:04:11 - 08:13:11 -4025
Idyllwild 08:08:47 -44.8 Dark Up 57.2 285.6 Up 08:04:17 - 08:13:17 -4051
Parker 08:08:40 -44.1 Dark Up 55.4 285.6 Up 08:04:10 - 08:13:10 -4062
Blythe 08:08:42 -44.7 Dark Up 55.5 286.2 Up 08:04:12 - 08:13:12 -4109
Calipatria 08:08:44 -45.3 Dark Up 56.1 286.7 Up 08:04:14 - 08:13:14 -4139
George/Scottsdale 08:08:36 -44.1 Dark Up 53.3 286.7 Up 08:04:06 - 08:13:06 -4151
Yuma 08:08:43 -45.6 Dark Up 55.2 287.5 Up 08:04:13 - 08:13:13 -4202

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 342842, (2024/08/23 08:10UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 13.47  68
37Gam Cyg      20:22:13.7 +40:15:24  2.2  7.68  71
21Eta Cyg      19:56:18.3 +35:05:00  3.9  1.64  76
PPM 083646     19:50:19.9 +36:05:54  7.1  0.16  77
342842         19:49:38.3 +36:00:43 15.7        77
Positions are for J2000

Event circumstances last updated at 2019/11/26 22:45:21 UT

Marc W. Buie, Southwest Research Institute

RECON