RECON: TNO occultation with 444745

Event between (444745) 07JF43 and star GA0780:06397000 with event index number of 2409713

Geocentric closest approach at 2028/06/29 07:21:41 UTC

J2000 position of star is 17:24:47.1 -10:30:31
Equinox of date position of star is 17:26:08.4 -10:31:45
Stellar brightness G=15.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 77 degrees from the moon. Moon is 48% illuminated.
Apparent brightness V=20.9

[RECON map]
Object is 35.6 AU from the Sun and 34.6 AU from the Earth.
Apparent velocity is 23.0 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 70 seconds.
The 1-sigma cross-track error in the shadow position is 1260 km.
The sky-plane scale is 25097.5 km/arcsec.

The object has an absolute magnitude Hv=5.4
Diameter=494.3 km assuming a 5% albedo -- 21.8 sec chord
Diameter=201.8 km assuming a 30% albedo -- 8.9 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 444745, (2028/06/29 07:20UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:09.6 -26:29:33  0.9 20.60  64
35Eta Oph      17:12:00.9 -15:45:29  2.6  6.28  73
53Nu Ser       17:22:25.9 -12:52:24  4.0  2.53  76
PPM 233064     17:27:52.2 -11:00:56  8.1  0.61  78
PPM 233046     17:27:06.5 -10:24:24  9.5  0.22  77
444745         17:26:21.8 -10:31:56 15.7        78
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 30.1 km RECON observability=1.0 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 07:20:53 -14.7 AT Down 24.8 202.9 Low 07:14:33 - 07:27:13 3401
Kamloops 07:21:26 -15.5 AT Down 28.5 187.5 Low 07:15:06 - 07:27:46 3349
Kelowna 07:21:23 -16.4 AT Down 29.3 188.6 Low 07:15:03 - 07:27:43 3304
Peachland 07:21:23 -16.5 AT Down 29.4 188.2 Low 07:15:03 - 07:27:43 3298
Summerland 07:21:23 -16.6 AT Down 29.5 188.3 Low 07:15:03 - 07:27:43 3290
Penticton 07:21:23 -16.7 AT Down 29.6 188.5 Low 07:15:03 - 07:27:43 3286
Oliver 07:21:22 -17.1 AT Down 29.9 188.5 Low 07:15:02 - 07:27:42 3267
Anarchist Mountain Observatory 07:21:21 -17.3 AT Down 30.1 188.7 Up 07:15:01 - 07:27:41 3257
Victoria 07:21:34 -17.2 AT Up 30.9 184.2 Up 07:15:14 - 07:27:54 3229
Okanogan 07:21:22 -17.9 AT Down 30.8 188.5 Up 07:15:02 - 07:27:42 3220
Brewster 07:21:22 -18.1 Dark Down 31.0 188.3 Up 07:15:02 - 07:27:42 3205
Manson/Chelan 07:21:24 -18.3 Dark Down 31.3 187.9 Up 07:15:04 - 07:27:44 3193
Wenatchee 07:21:24 -18.7 Dark Down 31.8 187.8 Up 07:15:04 - 07:27:44 3165
Ellensburg 07:21:25 -19.1 Dark Down 32.2 187.6 Up 07:15:05 - 07:27:45 3141
Yakima 07:21:24 -19.5 Dark Down 32.6 187.6 Up 07:15:04 - 07:27:44 3116
Toppenish/White Swan 07:21:24 -19.7 Dark Down 32.8 187.8 Up 07:15:04 - 07:27:44 3103
PNWRO 07:21:19 -20.3 Dark Down 33.0 189.6 Up 07:14:59 - 07:27:39 3080
The Dalles 07:21:26 -20.4 Dark Down 33.6 186.9 Up 07:15:06 - 07:27:46 3056
Maupin 07:21:25 -20.8 Dark Down 34.1 187.1 Up 07:15:05 - 07:27:45 3030
Sisters 07:21:27 -21.6 Dark Down 35.0 186.6 Up 07:15:07 - 07:27:47 2975
Bend 07:21:26 -21.9 Dark Down 35.2 186.9 Up 07:15:06 - 07:27:46 2959
Oregon Observatory 07:21:26 -22.0 Dark Down 35.4 186.8 Up 07:15:06 - 07:27:46 2948
Chiloquin 07:21:27 -23.3 Dark Up 36.7 186.4 Up 07:15:07 - 07:27:47 2862
Klamath Falls 07:21:27 -23.6 Dark Up 37.0 186.5 Up 07:15:07 - 07:27:47 2839
Cedarville 07:21:21 -24.5 Dark Down 37.6 188.5 Up 07:15:01 - 07:27:41 2792
Fall River/Burney 07:21:25 -24.8 Dark Up 38.2 187.1 Up 07:15:05 - 07:27:45 2758
Greenville 07:21:23 -25.8 Dark Down 39.0 187.7 Up 07:15:03 - 07:27:43 2695
Gimple 07:21:23 -25.8 Dark Down 39.0 187.8 Up 07:15:03 - 07:27:43 2695
Quincy 07:21:23 -26.0 Dark Down 39.2 187.8 Up 07:15:03 - 07:27:43 2681
Portola 07:21:22 -26.2 Dark Down 39.3 188.4 Up 07:15:02 - 07:27:42 2672
Dunrhomin 07:20:28 -26.4 Dark Down 35.4 206.4 Up 07:14:08 - 07:26:48 2667
Nikitin 07:20:28 -26.6 Dark Down 35.6 206.5 Up 07:14:08 - 07:26:48 2654
Reno 07:21:19 -26.5 Dark Down 39.5 189.2 Up 07:14:59 - 07:27:39 2653
CU-SBO 07:20:27 -26.7 Dark Down 35.7 206.4 Up 07:14:07 - 07:26:47 2650
Carson City 07:21:18 -26.9 Dark Down 39.9 189.3 Up 07:14:58 - 07:27:38 2627
Yerington 07:21:16 -27.2 Dark Down 40.0 190.1 Up 07:14:56 - 07:27:36 2613
Gardnerville 07:21:19 -27.1 Dark Down 40.1 189.4 Up 07:14:59 - 07:27:39 2610
Hawthorne 07:21:14 -27.7 Dark Down 40.3 190.8 Up 07:14:54 - 07:27:34 2579
Lee Vining 07:21:16 -28.2 Dark Down 41.0 190.3 Up 07:14:56 - 07:27:36 2538
Bishop 07:21:13 -28.9 Dark Down 41.5 191.3 Up 07:14:53 - 07:27:33 2493
Beatty 07:21:06 -29.5 Dark Down 41.6 193.5 Up 07:14:46 - 07:27:26 2456
Patrick 07:20:54 -31.2 Dark Down 42.4 197.5 Up 07:14:34 - 07:27:14 2338
Laughlin/Bullhead City 07:20:57 -31.4 Dark Down 42.8 196.7 Up 07:14:37 - 07:27:17 2320
Lake Havasu City 07:20:56 -32.1 Dark Down 43.4 197.2 Up 07:14:36 - 07:27:16 2267
Wildwood 07:21:12 -32.1 Dark Down 44.7 191.7 Up 07:14:52 - 07:27:32 2242
Idyllwild 07:21:04 -32.6 Dark Down 44.7 194.3 Up 07:14:44 - 07:27:24 2212
George/Scottsdale 07:20:53 -33.0 Dark Down 43.5 200.6 Up 07:14:33 - 07:27:13 2206
Calipatria 07:20:59 -33.4 Dark Down 45.0 196.0 Up 07:14:39 - 07:27:19 2160
Yuma 07:20:56 -33.9 Dark Down 45.2 197.3 Up 07:14:36 - 07:27:16 2124

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 444745, (2028/06/29 07:20UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 20.60  64
35Eta Oph      17:10:22.7 -15:43:29  2.6  6.28  73
53Nu Ser       17:20:49.7 -12:50:49  4.0  2.53  76
PPM 233064     17:26:17.3 -10:59:34  8.1  0.61  78
PPM 233046     17:25:31.9 -10:23:00  9.5  0.22  77
444745         17:24:47.1 -10:30:31 15.7        77
Positions are for J2000

Event circumstances last updated at 2024/06/24 21:30:26 UT

Marc W. Buie, Southwest Research Institute

RECON