RECON: TNO occultation with 535030

Event between (535030) 14WJ510 and star GA0840:04020573 with event index number of 2261107

Geocentric closest approach at 2024/03/23 08:42:34 UTC

J2000 position of star is 11:18:33.4 -05:35:49
Equinox of date position of star is 11:19:44.6 -05:43:29
Stellar brightness G=13.9, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 16 degrees from the moon. Moon is 97% illuminated.
Apparent brightness V=22.2

[RECON map]
Object is 35.4 AU from the Sun and 34.4 AU from the Earth.
Apparent velocity is 23.9 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 66 seconds.
The 1-sigma cross-track error in the shadow position is 1606 km.
The sky-plane scale is 24976.7 km/arcsec.

The object has an absolute magnitude Hv=6.7
Diameter=278.0 km assuming a 5% albedo -- 11.7 sec chord
Diameter=113.5 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 535030, (2024/03/23 08:42UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:39.6 +11:50:52  1.3 24.76  13
4Gam Crv       12:17:03.4 -17:40:35  2.6 18.40  33
PPM 194312     11:18:11.9 -07:16:02  6.1  1.59  17
PPM 194335     11:19:38.8 -06:01:44  8.3  0.30  16
PPM 194337     11:19:50.0 -05:43:10  9.8  0.01  16
535030         11:19:47.3 -05:43:46 13.9        16
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 15.9 km RECON observability=1.0 and success probability=0.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:42:17 -33.2 Dark Up 24.6 220.4 Low 08:36:16 - 08:48:18 4907
Kamloops 08:42:49 -37.5 Dark Up 30.6 205.7 Up 08:36:48 - 08:48:50 4598
Kelowna 08:42:43 -38.2 Dark Up 31.1 206.9 Up 08:36:42 - 08:48:44 4576
Peachland 08:42:45 -38.4 Dark Up 31.3 206.6 Up 08:36:44 - 08:48:46 4565
Summerland 08:42:44 -38.5 Dark Up 31.4 206.7 Up 08:36:43 - 08:48:45 4559
Penticton 08:42:44 -38.5 Dark Up 31.4 206.9 Up 08:36:43 - 08:48:45 4558
Oliver 08:42:43 -38.9 Dark Up 31.7 207.0 Up 08:36:42 - 08:48:44 4540
Anarchist Mountain Observatory 08:42:42 -39.0 Dark Up 31.8 207.2 Up 08:36:41 - 08:48:43 4536
Okanogan 08:42:41 -39.7 Dark Up 32.5 207.2 Up 08:36:40 - 08:48:42 4498
Brewster 08:42:41 -40.0 Dark Up 32.8 207.0 Up 08:36:40 - 08:48:42 4480
Manson/Chelan 08:42:42 -40.2 Dark Up 33.1 206.7 Up 08:36:41 - 08:48:43 4462
Wenatchee 08:42:41 -40.7 Dark Up 33.5 206.6 Up 08:36:40 - 08:48:42 4433
Victoria 08:42:52 -40.0 Dark Up 33.4 202.8 Up 08:36:51 - 08:48:53 4427
Ellensburg 08:42:41 -41.2 Dark Up 34.0 206.5 Up 08:36:40 - 08:48:42 4406
PNWRO 08:42:34 -41.9 Dark Up 34.3 208.7 Up 08:36:33 - 08:48:35 4387
Yakima 08:42:40 -41.6 Dark Up 34.3 206.6 Up 08:36:39 - 08:48:41 4384
Toppenish/White Swan 08:42:39 -41.7 Dark Up 34.5 206.8 Up 08:36:38 - 08:48:40 4375
Dunrhomin 08:41:42 -43.2 Dark Up 33.0 225.5 Up 08:35:41 - 08:47:43 4326
Nikitin 08:41:42 -43.4 Dark Up 33.1 225.5 Up 08:35:41 - 08:47:43 4315
The Dalles 08:42:40 -42.6 Dark Up 35.4 206.2 Up 08:36:39 - 08:48:41 4315
CU-SBO 08:41:42 -43.5 Dark Up 33.2 225.5 Up 08:35:41 - 08:47:43 4309
Maupin 08:42:39 -43.0 Dark Up 35.8 206.4 Up 08:36:38 - 08:48:40 4293
Sisters 08:42:37 -43.9 Dark Up 36.7 206.1 Up 08:36:36 - 08:48:38 4232
Bend 08:42:37 -44.1 Dark Up 36.9 206.5 Up 08:36:36 - 08:48:38 4224
Oregon Observatory 08:42:37 -44.3 Dark Up 37.0 206.4 Up 08:36:36 - 08:48:38 4211
Chiloquin 08:42:36 -45.7 Dark Up 38.4 206.4 Up 08:36:35 - 08:48:37 4122
Klamath Falls 08:42:34 -46.0 Dark Up 38.6 206.6 Up 08:36:33 - 08:48:35 4102
Cedarville 08:42:28 -46.5 Dark Up 38.7 208.7 Up 08:36:27 - 08:48:29 4096
Fall River/Burney 08:42:31 -47.1 Dark Up 39.6 207.5 Up 08:36:30 - 08:48:32 4037
Gimple 08:42:28 -47.9 Dark Up 40.2 208.4 Up 08:36:27 - 08:48:29 3991
Greenville 08:42:27 -47.9 Dark Up 40.2 208.3 Up 08:36:26 - 08:48:28 3989
Portola 08:42:26 -48.2 Dark Up 40.3 209.0 Up 08:36:25 - 08:48:27 3980
Reno 08:42:23 -48.3 Dark Up 40.3 209.9 Up 08:36:22 - 08:48:24 3977
Quincy 08:42:27 -48.1 Dark Up 40.4 208.4 Up 08:36:26 - 08:48:28 3976
Yerington 08:42:20 -48.7 Dark Up 40.5 210.9 Up 08:36:19 - 08:48:21 3956
Carson City 08:42:22 -48.7 Dark Up 40.6 210.1 Up 08:36:21 - 08:48:23 3954
Gardnerville 08:42:21 -48.9 Dark Up 40.8 210.3 Up 08:36:20 - 08:48:22 3939
Hawthorne 08:42:18 -49.1 Dark Up 40.7 211.8 Up 08:36:17 - 08:48:19 3938
Lee Vining 08:42:18 -49.7 Dark Up 41.4 211.4 Up 08:36:17 - 08:48:19 3889
Beatty 08:42:08 -50.2 Dark Up 41.3 214.7 Up 08:36:07 - 08:48:09 3872
Bishop 08:42:14 -50.1 Dark Up 41.6 212.6 Up 08:36:13 - 08:48:15 3865
Patrick 08:41:55 -50.7 Dark Up 41.1 218.8 Up 08:35:54 - 08:47:56 3836
Laughlin/Bullhead City 08:41:56 -51.2 Dark Up 41.7 218.1 Up 08:35:55 - 08:47:57 3802
George/Scottsdale 08:41:45 -51.5 Dark Up 41.4 222.0 Up 08:35:44 - 08:47:46 3761
Lake Havasu City 08:41:53 -51.7 Dark Up 42.1 218.8 Up 08:35:52 - 08:47:54 3760
Idyllwild 08:42:01 -53.2 Dark Up 43.9 216.4 Up 08:36:00 - 08:48:02 3650
Calipatria 08:41:55 -53.4 Dark Up 43.8 218.2 Up 08:35:54 - 08:47:56 3633
Wildwood 08:42:07 -53.3 Dark Up 44.5 214.0 Up 08:36:06 - 08:48:08 3629
Yuma 08:41:51 -53.5 Dark Up 43.6 219.5 Up 08:35:50 - 08:47:52 3623

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 535030, (2024/03/23 08:42UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3 24.76  13
4Gam Crv       12:15:48.1 -17:32:30  2.6 18.40  33
PPM 194312     11:16:58.2 -07:08:05  6.1  1.59  17
PPM 194335     11:18:24.9 -05:53:47  8.3  0.30  16
PPM 194337     11:18:36.1 -05:35:12  9.8  0.01  16
535030         11:18:33.4 -05:35:49 13.9        16
Positions are for J2000

Event circumstances last updated at 2023/05/03 03:55:17 UT

Marc W. Buie, Southwest Research Institute

RECON