RECON: TNO occultation with 469442

Event between (469442) 02GG166 and star GA0580:25467326 with event index number of 1385468

Geocentric closest approach at 2024/07/15 06:02:46 UTC

J2000 position of star is 17:52:33.7 -30:19:28
Equinox of date position of star is 17:54:07.9 -30:19:43
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 51 degrees from the moon. Moon is 63% illuminated.
Apparent brightness V=20.1

[RECON map]
Object is 15.3 AU from the Sun and 14.4 AU from the Earth.
Apparent velocity is 17.5 km/sec on the sky relative to the star, or, 6.0 arcsec/hr.
The 1-sigma error in the time of the event is 104 seconds.
The 1-sigma cross-track error in the shadow position is 584 km.
The sky-plane scale is 10444.4 km/arcsec.

The object has an absolute magnitude Hv=8.2
Diameter=136.1 km assuming a 5% albedo -- 7.8 sec chord
Diameter=55.6 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 469442, (2024/07/15 06:02UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:55.0 -26:29:03  0.9 18.67  32
34Ups Sco      17:32:26.1 -37:18:46  2.7  8.31  47
PPM 296839     17:50:46.2 -31:42:33  4.9  1.56  50
PPM 296917     17:53:46.2 -30:09:21  8.4  0.19  51
469442         17:54:08.3 -30:19:43 16.9        51
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 14.4 km RECON observability=0.3 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 06:02:34 -15.0 AT Up 7.1 188.8 Really Low 05:53:25 - 06:11:42 5022
Kamloops 06:03:22 -12.9 AT Up 8.9 176.4 Really Low 05:54:14 - 06:12:31 4968
Kelowna 06:03:19 -13.9 AT Up 9.8 177.2 Really Low 05:54:10 - 06:12:27 4958
Peachland 06:03:20 -13.9 AT Up 9.9 176.9 Really Low 05:54:12 - 06:12:29 4954
Summerland 06:03:20 -14.0 AT Up 10.0 177.0 Really Low 05:54:11 - 06:12:28 4952
Penticton 06:03:19 -14.1 AT Up 10.1 177.1 Really Low 05:54:11 - 06:12:28 4951
Oliver 06:03:19 -14.4 AT Up 10.4 177.1 Really Low 05:54:11 - 06:12:28 4944
Anarchist Mountain Observatory 06:03:19 -14.6 AT Up 10.6 177.3 Really Low 05:54:10 - 06:12:27 4942
Okanogan 06:03:20 -15.1 AT Up 11.3 177.1 Really Low 05:54:11 - 06:12:28 4926
Brewster 06:03:21 -15.3 AT Up 11.5 176.9 Really Low 05:54:12 - 06:12:29 4919
Manson/Chelan 06:03:22 -15.4 AT Up 11.7 176.6 Really Low 05:54:14 - 06:12:31 4912
Victoria 06:03:35 -13.7 AT Up 10.9 173.8 Really Low 05:54:26 - 06:12:43 4902
Wenatchee 06:03:23 -15.7 AT Up 12.2 176.4 Really Low 05:54:15 - 06:12:32 4900
Ellensburg 06:03:24 -16.0 AT Up 12.6 176.2 Really Low 05:54:15 - 06:12:32 4888
Yakima 06:03:24 -16.4 AT Up 13.0 176.2 Really Low 05:54:16 - 06:12:33 4878
PNWRO 06:03:17 -17.4 AT Up 13.6 177.7 Really Low 05:54:08 - 06:12:25 4874
Toppenish/White Swan 06:03:23 -16.6 AT Up 13.2 176.4 Really Low 05:54:15 - 06:12:32 4873
The Dalles 06:03:27 -17.0 AT Up 14.0 175.7 Really Low 05:54:18 - 06:12:35 4846
Maupin 06:03:27 -17.4 AT Up 14.4 175.7 Really Low 05:54:18 - 06:12:35 4836
Sisters 06:03:29 -18.0 AT Up 15.2 175.3 Really Low 05:54:21 - 06:12:38 4807
Bend 06:03:28 -18.3 Dark Up 15.5 175.5 Really Low 05:54:19 - 06:12:36 4802
Oregon Observatory 06:03:28 -18.4 Dark Up 15.6 175.4 Really Low 05:54:20 - 06:12:37 4796
Chiloquin 06:03:31 -19.3 Dark Up 16.9 175.0 Really Low 05:54:23 - 06:12:40 4750
Klamath Falls 06:03:31 -19.7 Dark Up 17.3 175.1 Really Low 05:54:23 - 06:12:40 4739
Cedarville 06:03:23 -20.9 Dark Up 18.1 176.5 Really Low 05:54:15 - 06:12:32 4728
Dunrhomin 06:02:13 -26.5 Dark Up 18.7 189.9 Really Low 05:53:05 - 06:11:22 4715
Nikitin 06:02:13 -26.7 Dark Up 18.9 189.9 Really Low 05:53:05 - 06:11:22 4708
CU-SBO 06:02:14 -26.7 Dark Up 19.0 189.8 Really Low 05:53:05 - 06:11:22 4706
Fall River/Burney 06:03:29 -20.8 Dark Up 18.5 175.4 Really Low 05:54:21 - 06:12:38 4701
Gimple 06:03:27 -21.8 Dark Up 19.4 175.8 Really Low 05:54:19 - 06:12:36 4672
Greenville 06:03:28 -21.7 Dark Up 19.4 175.8 Really Low 05:54:19 - 06:12:36 4672
Quincy 06:03:28 -21.9 Dark Up 19.6 175.8 Really Low 05:54:19 - 06:12:36 4664
Portola 06:03:26 -22.2 Dark Up 19.8 176.2 Really Low 05:54:17 - 06:12:34 4663
Reno 06:03:23 -22.7 Dark Up 20.1 176.8 Low 05:54:14 - 06:12:31 4658
Carson City 06:03:23 -23.0 Dark Up 20.4 176.8 Low 05:54:14 - 06:12:31 4644
Yerington 06:03:19 -23.4 Dark Up 20.6 177.3 Low 05:54:11 - 06:12:28 4641
Gardnerville 06:03:22 -23.2 Dark Up 20.7 176.8 Low 05:54:14 - 06:12:31 4635
Hawthorne 06:03:17 -24.0 Dark Up 21.1 177.8 Low 05:54:08 - 06:12:25 4626
Lee Vining 06:03:19 -24.3 Dark Up 21.7 177.4 Low 05:54:11 - 06:12:28 4601
Bishop 06:03:16 -25.1 Dark Up 22.3 178.0 Low 05:54:07 - 06:12:24 4580
Beatty 06:03:08 -26.2 Dark Up 22.8 179.5 Low 05:53:59 - 06:12:16 4570
Patrick 06:02:53 -28.5 Dark Up 24.2 182.2 Low 05:53:45 - 06:12:02 4516
Laughlin/Bullhead City 06:02:57 -28.5 Dark Up 24.5 181.5 Low 05:53:48 - 06:12:05 4502
Lake Havasu City 06:02:55 -29.2 Dark Up 25.2 181.8 Low 05:53:47 - 06:12:04 4471
George/Scottsdale 06:02:42 -30.8 Dark Up 25.8 184.1 Low 05:53:34 - 06:11:51 4441
Wildwood 06:03:17 -27.9 Dark Up 25.5 177.8 Low 05:54:08 - 06:12:25 4430
Idyllwild 06:03:07 -29.0 Dark Up 25.9 179.5 Low 05:53:59 - 06:12:16 4426
Calipatria 06:03:01 -30.0 Dark Up 26.5 180.7 Low 05:53:53 - 06:12:10 4400
Yuma 06:02:56 -30.7 Dark Up 27.0 181.5 Low 05:53:48 - 06:12:05 4383

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 469442, (2024/07/15 06:02UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 18.67  32
34Ups Sco      17:30:45.8 -37:17:46  2.7  8.31  47
PPM 296839     17:49:10.5 -31:42:12  4.9  1.56  50
PPM 296917     17:52:11.7 -30:09:06  8.4  0.19  51
469442         17:52:33.7 -30:19:28 16.9        51
Positions are for J2000

Event circumstances last updated at 2024/06/11 03:48:22 UT

Marc W. Buie, Southwest Research Institute

RECON