RECON: TNO occultation with 505624

Event between (505624) 14GU53 and star GA0900:04735838 with event index number of 1234871

Geocentric closest approach at 2023/04/28 09:07:41 UTC

J2000 position of star is 16:42:13.9 +00:37:47
Equinox of date position of star is 16:43:13.9 +00:35:37
Stellar brightness G=15.8, use SENSEUP=128
Star is 111 degrees from the moon. Moon is 55% illuminated.
TNO apparent brightness V=21.4

[RECON map]
TNO is 37.8 AU from the Sun and 37.0 AU from the Earth.
The TNO is moving 21.1 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 339 seconds.
The 1-sigma cross-track error in the shadow position is 4338 km.
The sky-plane scale is 26828.6 km/arcsec.

The TNO has an absolute magnitude Hv=5.6
Diameter=457.1 km assuming a 5% albedo -- 21.7 sec chord
Diameter=186.6 km assuming a 30% albedo -- 8.9 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 505624, (2023/04/28 09:08UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:50.5 -26:28:54  0.9 27.24 117
1Del Oph       16:15:34.2 -03:45:09  2.7  8.20 107
14 Oph         16:42:53.5 +01:08:18  6.0  0.57 111
PPM 163005     16:43:51.6 +00:29:00  8.9  0.15 111
PPM 163006     16:43:55.0 +00:34:18 11.3  0.12 111
505624         16:43:25.3 +00:35:12 15.8       112
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 2.7 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)
Kelowna 09:10:14 -23.9 Dark Up 38.8 158.9 Up 08:55:14 - 09:25:14 1440
Summerland 09:10:15 -24.2 Dark Up 39.0 158.5 Up 08:55:15 - 09:25:15 1409
Penticton 09:10:15 -24.3 Dark Up 39.1 158.6 Up 08:55:15 - 09:25:15 1407
Okanagan Falls 09:10:15 -24.4 Dark Up 39.3 158.5 Up 08:55:15 - 09:25:15 1392
Oliver 09:10:15 -24.6 Dark Up 39.4 158.5 Up 08:55:15 - 09:25:15 1380
Anarchist Mountain Observatory 09:10:14 -24.7 Dark Up 39.6 158.7 Up 08:55:14 - 09:25:14 1373
Oroville 09:10:14 -24.8 Dark Up 39.7 158.5 Up 08:55:14 - 09:25:14 1365
Tonasket 09:10:14 -25.0 Dark Up 39.9 158.5 Up 08:55:14 - 09:25:14 1347
Okanogan 09:10:14 -25.4 Dark Up 40.2 158.2 Up 08:55:14 - 09:25:14 1317
Brewster 09:10:15 -25.7 Dark Up 40.4 157.8 Up 08:55:15 - 09:25:15 1289
Manson/Chelan 09:10:15 -25.9 Dark Up 40.5 157.3 Up 08:55:15 - 09:25:15 1261
Wenatchee 09:10:16 -26.4 Dark Up 40.9 156.9 Up 08:55:16 - 09:25:16 1218
Ellensburg 09:10:16 -26.9 Dark Up 41.2 156.5 Up 08:55:16 - 09:25:16 1179
Pasco 09:10:11 -27.2 Dark Up 42.3 158.1 Up 08:55:11 - 09:25:11 1166
SwRI 09:09:17 -27.9 Dark Down 50.6 176.2 Up 08:54:17 - 09:24:17 1165
PNWRO 09:10:10 -27.4 Dark Up 42.5 158.3 Up 08:55:10 - 09:25:10 1153
Yakima 09:10:16 -27.3 Dark Up 41.6 156.4 Up 08:55:16 - 09:25:16 1146
Toppenish/White Swan 09:10:15 -27.4 Dark Up 41.8 156.5 Up 08:55:15 - 09:25:15 1134
Goldendale 09:10:16 -28.0 Dark Up 42.2 155.7 Up 08:55:16 - 09:25:16 1075
The Dalles 09:10:17 -28.3 Dark Up 42.3 155.2 Up 08:55:17 - 09:25:17 1045
Maupin 09:10:16 -28.7 Dark Up 42.7 155.2 Up 08:55:16 - 09:25:16 1014
Madras/Culver 09:10:16 -29.2 Dark Up 43.2 154.9 Up 08:55:16 - 09:25:16 968
Redmond 09:10:16 -29.6 Dark Up 43.5 154.7 Up 08:55:16 - 09:25:16 937
Sisters 09:10:18 -29.7 Dark Up 43.4 154.2 Up 08:55:18 - 09:25:18 925
Bend 09:10:16 -29.8 Dark Up 43.6 154.4 Up 08:55:16 - 09:25:16 914
Oregon Observatory 09:10:17 -30.0 Dark Up 43.8 154.2 Up 08:55:17 - 09:25:17 895
La Pine/Gilchrist 09:10:17 -30.2 Dark Up 43.9 154.0 Up 08:55:17 - 09:25:17 876
North Lake 09:10:15 -30.5 Dark Up 44.5 154.6 Up 08:55:15 - 09:25:15 860
Paisley 09:10:14 -30.9 Dark Up 45.1 154.8 Up 08:55:14 - 09:25:14 827
Lakeview 09:10:12 -31.4 Dark Up 45.6 154.9 Up 08:55:12 - 09:25:12 791
Chiloquin 09:10:18 -31.4 Dark Up 44.8 153.0 Up 08:55:18 - 09:25:18 770
Klamath Falls 09:10:17 -31.7 Dark Up 45.1 153.0 Up 08:55:17 - 09:25:17 744
Cedarville 09:10:11 -31.9 Dark Up 46.3 154.8 Up 08:55:11 - 09:25:11 741
Tulelake 09:10:16 -31.8 Dark Up 45.5 153.3 Up 08:55:16 - 09:25:16 732
Fall River/Burney 09:10:15 -32.7 Dark Up 46.3 153.0 Up 08:55:15 - 09:25:15 657
Susanville 09:10:12 -33.1 Dark Up 47.1 153.7 Up 08:55:12 - 09:25:12 629
Gimple 09:10:12 -33.4 Dark Up 47.3 153.2 Up 08:55:12 - 09:25:12 597
Greenville 09:10:12 -33.4 Dark Up 47.3 153.1 Up 08:55:12 - 09:25:12 594
Reno 09:10:08 -33.7 Dark Up 48.2 154.4 Up 08:55:08 - 09:25:08 584
Portola 09:10:11 -33.6 Dark Up 47.7 153.6 Up 08:55:11 - 09:25:11 583
Quincy 09:10:13 -33.6 Dark Up 47.5 153.0 Up 08:55:13 - 09:25:13 577
Yerington 09:10:06 -34.0 Dark Up 48.9 155.0 Up 08:55:06 - 09:25:06 560
Carson City 09:10:08 -34.0 Dark Up 48.5 154.2 Up 08:55:08 - 09:25:08 554
Tonopah 09:09:57 -34.3 Dark Up 50.4 157.4 Up 08:54:57 - 09:24:57 552
Hawthorne 09:10:03 -34.3 Dark Up 49.5 155.6 Up 08:55:03 - 09:25:03 539
Gardnerville 09:10:07 -34.2 Dark Up 48.8 154.2 Up 08:55:07 - 09:25:07 534
Indian Springs 09:09:50 -35.1 Dark Up 52.2 159.0 Up 08:54:50 - 09:24:50 481
Lee Vining 09:10:04 -34.9 Dark Up 49.8 154.6 Up 08:55:04 - 09:25:04 472
Beatty 09:09:55 -35.2 Dark Up 51.6 157.5 Up 08:54:55 - 09:24:55 468
Henderson 09:09:47 -35.3 Dark Up 52.9 159.8 Up 08:54:47 - 09:24:47 462
Patrick 09:09:42 -35.4 Dark Up 53.8 161.3 Up 08:54:42 - 09:24:42 451
Bishop 09:10:01 -35.3 Dark Up 50.6 155.3 Up 08:55:01 - 09:25:01 447
Kingman/Dolan Springs 09:09:42 -35.7 Dark Up 53.9 160.9 Up 08:54:42 - 09:24:42 424
Searchlight/Boulder City 09:09:46 -35.8 Dark Up 53.4 159.7 Up 08:54:46 - 09:24:46 414
Laughlin/Bullhead City 09:09:44 -35.9 Dark Up 53.8 160.1 Up 08:54:44 - 09:24:44 402
Lone Pine 09:09:59 -35.9 Dark Up 51.4 155.4 Up 08:54:59 - 09:24:59 392
George/Scottsdale 09:09:32 -36.1 Dark Up 55.9 163.9 Up 08:54:32 - 09:24:32 383
Mohave Valley 09:09:44 -36.2 Dark Up 54.1 160.0 Up 08:54:44 - 09:24:44 378
Lake Havasu City 09:09:43 -36.4 Dark Up 54.5 160.2 Up 08:54:43 - 09:24:43 353
Parker 09:09:42 -36.7 Dark Up 54.8 160.0 Up 08:54:42 - 09:24:42 323
Blythe 09:09:42 -37.3 Dark Up 55.3 159.3 Up 08:54:42 - 09:24:42 264
Idyllwild 09:09:50 -38.0 Dark Up 54.5 155.9 Up 08:54:50 - 09:24:50 190
Calipatria 09:09:45 -38.1 Dark Up 55.4 157.5 Up 08:54:45 - 09:24:45 183
Yuma 09:09:41 -38.1 Dark Up 56.1 158.7 Up 08:54:41 - 09:24:41 180
CPSLO 09:10:07 -37.9 Dark Up 51.6 150.8 Up 08:55:07 - 09:25:07 177
Wildwood 09:09:58 -38.3 Dark Up 53.5 153.2 Up 08:54:58 - 09:24:58 148

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 505624, (2023/04/28 09:08UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 27.24 117
1Del Oph       16:14:20.7 -03:41:42  2.7  8.20 107
14 Oph         16:41:42.4 +01:10:53  6.0  0.57 111
PPM 163005     16:42:40.2 +00:31:34  8.9  0.15 111
PPM 163006     16:42:43.5 +00:36:51 11.3  0.12 111
505624         16:42:13.9 +00:37:47 15.8       111
Positions are for J2000

Event circumstances last updated at 2019/08/02 22:37:54 UT

Marc W. Buie, Southwest Research Institute

RECON