RECON: TNO occultation with 578992

Event between (578992) 14JL80 and star GA0700:15266564 with event index number of 2555797

Geocentric closest approach at 2028/03/15 12:24:02 UTC

J2000 position of star is 17:42:55.7 -18:57:39
Equinox of date position of star is 17:44:22.2 -18:58:14
Stellar brightness G=15.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 31 degrees from the moon. Moon is 75% illuminated.
Apparent brightness V=22.2

[RECON map]
Object is 28.6 AU from the Sun and 28.6 AU from the Earth.
Apparent velocity is 7.4 km/sec on the sky relative to the star, or, 1.3 arcsec/hr.
The 1-sigma error in the time of the event is 331 seconds.
The 1-sigma cross-track error in the shadow position is 1097 km.
The sky-plane scale is 20762.5 km/arcsec.

The object has an absolute magnitude Hv=7.4
Diameter=199.5 km assuming a 5% albedo -- 27.2 sec chord
Diameter=81.5 km assuming a 30% albedo -- 11.1 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 578992, (2028/03/15 12:34UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:08.5 -26:29:31  0.9 18.50  14
35Eta Oph      17:11:59.9 -15:45:28  2.6  8.41  25
58 Oph         17:45:07.3 -21:41:39  4.9  2.73  31
PPM 267170     17:44:12.8 -20:06:56  8.5  1.15  31
PPM 233522     17:45:32.1 -19:03:02  9.3  0.24  31
578992         17:44:35.4 -18:58:19 15.5        32
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 0.0 km RECON observability=0.7 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)
Kamloops 12:22:52 -18.1 Dark Up 16.5 153.6 Really Low 12:07:52 - 12:37:52 10619
Kelowna 12:22:56 -17.8 AT Up 17.5 154.4 Really Low 12:07:56 - 12:37:56 10589
Peachland 12:22:52 -18.0 Dark Up 17.5 154.1 Really Low 12:07:52 - 12:37:52 10587
Summerland 12:22:53 -18.0 Dark Up 17.7 154.2 Really Low 12:07:53 - 12:37:53 10581
Penticton 12:22:52 -18.0 AT Up 17.7 154.3 Really Low 12:07:52 - 12:37:52 10578
Oliver 12:22:52 -18.1 Dark Up 18.1 154.2 Really Low 12:07:52 - 12:37:52 10566
Sleaford 12:25:16 -8.7 NT Up 18.2 168.3 Really Low 12:10:16 - 12:40:16 10561
Anarchist Mountain Observatory 12:22:51 -18.0 Dark Up 18.3 154.4 Really Low 12:07:51 - 12:37:51 10560
Victoria 12:22:07 -20.8 Dark Up 17.4 150.3 Really Low 12:07:07 - 12:37:07 10555
Okanogan 12:22:46 -18.4 Dark Up 18.8 154.0 Really Low 12:07:46 - 12:37:46 10537
Brewster 12:22:41 -18.6 Dark Up 19.0 153.8 Really Low 12:07:41 - 12:37:41 10528
Manson/Chelan 12:22:38 -18.9 Dark Up 19.0 153.4 Really Low 12:07:38 - 12:37:38 10522
Wenatchee 12:22:34 -19.2 Dark Up 19.4 153.1 Really Low 12:07:34 - 12:37:34 10504
Ellensburg 12:22:28 -19.5 Dark Up 19.7 152.8 Really Low 12:07:28 - 12:37:28 10490
Yakima 12:22:24 -19.7 Dark Up 20.0 152.7 Low 12:07:24 - 12:37:24 10474
Toppenish/White Swan 12:22:27 -19.6 Dark Up 20.3 152.9 Low 12:07:27 - 12:37:27 10464
PNWRO 12:22:35 -18.7 Dark Up 21.1 154.3 Low 12:07:35 - 12:37:35 10443
The Dalles 12:22:12 -20.4 Dark Up 20.7 151.9 Low 12:07:12 - 12:37:12 10435
Maupin 12:22:10 -20.5 Dark Up 21.1 151.9 Low 12:07:10 - 12:37:10 10418
Sisters 12:22:01 -21.1 Dark Up 21.7 151.3 Low 12:07:01 - 12:37:01 10382
Bend 12:21:59 -21.1 Dark Up 22.0 151.5 Low 12:06:59 - 12:36:59 10371
Oregon Observatory 12:21:59 -21.2 Dark Up 22.1 151.3 Low 12:06:59 - 12:36:59 10364
Chiloquin 12:21:45 -22.0 Dark Up 23.1 150.6 Low 12:06:45 - 12:36:45 10306
Klamath Falls 12:21:44 -22.0 Dark Up 23.4 150.6 Low 12:06:44 - 12:36:44 10289
Cedarville 12:21:57 -21.0 Dark Up 24.6 152.0 Low 12:06:57 - 12:36:57 10250
Fall River/Burney 12:21:42 -22.1 Dark Up 24.6 150.7 Low 12:06:42 - 12:36:42 10231
Greenville 12:21:39 -22.1 Dark Up 25.5 150.9 Low 12:06:39 - 12:36:39 10184
Gimple 12:21:40 -22.0 Dark Up 25.6 151.0 Low 12:06:40 - 12:36:40 10184
Quincy 12:21:38 -22.1 Dark Up 25.7 150.9 Low 12:06:38 - 12:36:38 10174
Portola 12:21:40 -21.8 Dark Up 26.0 151.3 Low 12:06:40 - 12:36:40 10166
Reno 12:21:48 -21.4 Dark Up 26.5 151.9 Low 12:06:48 - 12:36:48 10149
Carson City 12:21:45 -21.5 Dark Up 26.8 151.8 Low 12:06:45 - 12:36:45 10130
Gardnerville 12:21:44 -21.5 Dark Up 27.0 151.8 Low 12:06:44 - 12:36:44 10117
Yerington 12:21:52 -21.0 Dark Up 27.2 152.4 Low 12:06:52 - 12:36:52 10117
Hawthorne 12:21:56 -20.8 Dark Up 27.8 152.9 Low 12:06:56 - 12:36:56 10089
Lee Vining 12:21:47 -21.3 Dark Up 28.1 152.2 Low 12:06:47 - 12:36:47 10062
Dunrhomin 12:24:47 -9.7 NT Up 29.9 167.9 Low 12:09:47 - 12:39:47 10053
Nikitin 12:24:45 -9.7 NT Up 30.1 167.9 Up 12:09:45 - 12:39:45 10043
CU-SBO 12:24:43 -9.8 NT Up 30.1 167.8 Up 12:09:43 - 12:39:43 10041
Bishop 12:21:52 -20.9 Dark Up 28.9 152.8 Low 12:06:52 - 12:36:52 10024
Beatty 12:22:05 -19.7 Dark Up 30.0 154.4 Low 12:07:05 - 12:37:05 9988
Patrick 12:22:35 -17.6 AT Up 32.3 157.1 Up 12:07:35 - 12:37:35 9879
Laughlin/Bullhead City 12:22:24 -18.2 Dark Up 32.3 156.3 Up 12:07:24 - 12:37:24 9870
Wildwood 12:21:28 -21.9 Dark Up 31.7 151.6 Up 12:06:28 - 12:36:28 9834
Lake Havasu City 12:22:25 -18.2 Dark Up 33.0 156.4 Up 12:07:25 - 12:37:25 9827
Idyllwild 12:21:52 -20.4 Dark Up 32.8 153.5 Up 12:06:52 - 12:36:52 9801
George/Scottsdale 12:22:52 -16.2 AT Up 34.5 158.9 Up 12:07:52 - 12:37:52 9757
Calipatria 12:21:59 -19.5 Dark Up 33.8 154.6 Up 12:06:59 - 12:36:59 9753
Yuma 12:22:14 -18.8 Dark Up 34.5 155.5 Up 12:07:14 - 12:37:14 9718

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 578992, (2028/03/15 12:34UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 18.50  14
35Eta Oph      17:10:22.7 -15:43:29  2.6  8.41  25
58 Oph         17:43:25.7 -21:41:00  4.9  2.73  31
PPM 267170     17:42:32.3 -20:06:15  8.5  1.15  31
PPM 233522     17:43:52.4 -19:02:24  9.3  0.24  31
578992         17:42:55.7 -18:57:39 15.5        31
Positions are for J2000

Event circumstances last updated at 2024/06/23 21:29:37 UT

Marc W. Buie, Southwest Research Institute

RECON