RECON: TNO occultation with 444030

Event between (444030) 04NT33 and star GA1120:16218274 with event index number of 2378439

Geocentric closest approach at 2028/11/04 01:51:28 UTC

J2000 position of star is 22:39:45.4 +23:57:37
Equinox of date position of star is 22:40:54.9 +24:05:12
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 71 degrees from the moon. Moon is 97% illuminated.
Apparent brightness V=20.6

[RECON map]
Object is 40.5 AU from the Sun and 39.9 AU from the Earth.
Apparent velocity is 18.9 km/sec on the sky relative to the star, or, 2.4 arcsec/hr.
The 1-sigma error in the time of the event is 83 seconds.
The 1-sigma cross-track error in the shadow position is 2267 km.
The sky-plane scale is 28945.4 km/arcsec.

The object has an absolute magnitude Hv=4.4
Diameter=698.3 km assuming a 5% albedo -- 41.7 sec chord
Diameter=285.1 km assuming a 30% albedo -- 17.0 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 444030, (2028/11/04 01:52UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:25.0 +45:23:05  1.3 32.03  85
Scheat         23:05:10.5 +28:14:22  2.4  6.79  64
47Lam Peg      22:47:55.4 +23:43:05  3.9  1.60  69
PPM 114723     22:42:48.7 +23:59:52  6.9  0.40  70
PPM 114698     22:41:20.5 +23:56:52  8.7  0.17  71
444030         22:41:08.3 +24:06:40 16.9        70
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 51.2 km RECON observability=0.1 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)
Victoria 01:50:04 -10.4 NT Up 54.8 122.8 Up 01:42:39 - 01:57:29 9936
Chiloquin 01:50:36 -10.3 NT Up 58.8 117.0 Up 01:43:11 - 01:58:01 9818
Klamath Falls 01:50:39 -10.3 NT Up 59.1 116.6 Up 01:43:14 - 01:58:04 9810
Sisters 01:50:26 -10.8 NT Up 58.2 119.7 Up 01:43:01 - 01:57:51 9807
Oregon Observatory 01:50:29 -10.9 NT Up 58.5 119.3 Up 01:43:04 - 01:57:54 9796
Bend 01:50:25 -11.0 NT Up 58.5 119.7 Up 01:43:00 - 01:57:50 9788
The Dalles 01:50:19 -11.3 NT Up 57.7 122.0 Up 01:42:54 - 01:57:44 9786
Maupin 01:50:22 -11.3 NT Up 58.0 121.6 Up 01:42:57 - 01:57:47 9777
Fall River/Burney 01:50:45 -10.4 NT Up 59.8 115.3 Up 01:43:20 - 01:58:10 9773
Ellensburg 01:50:11 -12.0 AT Up 57.3 124.6 Up 01:42:46 - 01:57:36 9748
Yakima 01:50:09 -11.9 NT Up 57.5 124.1 Up 01:42:44 - 01:57:34 9747
Kamloops 01:49:48 -12.7 AT Up 55.1 129.1 Up 01:42:23 - 01:57:13 9742
Toppenish/White Swan 01:50:14 -12.0 AT Up 57.8 124.0 Up 01:42:49 - 01:57:39 9735
Wenatchee 01:50:09 -12.2 AT Up 57.2 125.4 Up 01:42:44 - 01:57:34 9734
Greenville 01:50:49 -10.6 NT Up 60.5 114.4 Up 01:43:24 - 01:58:14 9732
Quincy 01:50:52 -10.5 NT Up 60.6 114.1 Up 01:43:27 - 01:58:17 9730
Gimple 01:50:50 -10.6 NT Up 60.6 114.5 Up 01:43:25 - 01:58:15 9726
Manson/Chelan 01:50:02 -12.4 AT Up 57.0 126.2 Up 01:42:37 - 01:57:27 9725
Peachland 01:49:54 -12.9 AT Up 56.0 128.9 Up 01:42:29 - 01:57:19 9703
Brewster 01:50:04 -12.7 AT Up 57.1 127.0 Up 01:42:39 - 01:57:29 9701
Summerland 01:49:54 -13.0 AT Up 56.2 128.9 Up 01:42:29 - 01:57:19 9697
Portola 01:50:51 -10.9 NT Up 61.0 114.4 Up 01:43:26 - 01:58:16 9693
Penticton 01:49:54 -13.0 AT Up 56.3 129.0 Up 01:42:29 - 01:57:19 9690
Oliver 01:49:56 -13.0 AT Up 56.5 128.6 Up 01:42:31 - 01:57:21 9689
Okanogan 01:50:01 -12.8 AT Up 57.0 127.6 Up 01:42:36 - 01:57:26 9688
Cedarville 01:50:39 -11.4 NT Up 60.4 117.5 Up 01:43:14 - 01:58:04 9688
Kelowna 01:49:54 -13.1 AT Up 56.1 129.5 Up 01:42:29 - 01:57:19 9685
Anarchist Mountain Observatory 01:49:56 -13.1 AT Up 56.7 128.6 Up 01:42:31 - 01:57:21 9676
Reno 01:50:52 -11.3 NT Up 61.6 114.8 Up 01:43:27 - 01:58:17 9641
Carson City 01:50:54 -11.3 NT Up 61.8 114.2 Up 01:43:29 - 01:58:19 9635
PNWRO 01:50:15 -13.0 AT Up 58.8 125.6 Up 01:42:50 - 01:57:40 9631
Gardnerville 01:50:55 -11.3 NT Up 61.9 113.9 Up 01:43:30 - 01:58:20 9629
Yerington 01:50:56 -11.7 NT Up 62.3 114.7 Up 01:43:31 - 01:58:21 9584
Lee Vining 01:51:01 -11.6 NT Up 62.8 113.0 Up 01:43:36 - 01:58:26 9568
Hawthorne 01:50:57 -12.0 AT Up 62.9 114.6 Up 01:43:32 - 01:58:22 9537
Bishop 01:51:04 -12.0 AT Up 63.5 112.8 Up 01:43:39 - 01:58:29 9502
Wildwood 01:51:23 -11.3 NT Up 64.5 106.3 Up 01:43:58 - 01:58:48 9465
Beatty 01:51:06 -13.2 AT Up 64.9 114.0 Up 01:43:41 - 01:58:31 9365
Idyllwild 01:51:23 -12.8 AT Up 66.1 107.6 Up 01:43:58 - 01:58:48 9303
Calipatria 01:51:24 -13.7 AT Up 67.3 107.6 Up 01:43:59 - 01:58:49 9191
Laughlin/Bullhead City 01:51:13 -14.7 AT Up 67.3 113.3 Up 01:43:48 - 01:58:38 9154
Lake Havasu City 01:51:16 -14.9 AT Up 67.7 112.2 Up 01:43:51 - 01:58:41 9119
Yuma 01:51:27 -14.3 AT Up 68.1 107.7 Up 01:44:02 - 01:58:52 9105
Patrick 01:51:10 -15.3 AT Up 67.7 114.8 Up 01:43:45 - 01:58:35 9101
George/Scottsdale 01:51:18 -16.8 AT Up 69.9 113.8 Up 01:43:53 - 01:58:43 8894
Sleaford 01:49:30 -21.7 Dark Up 59.7 152.7 Up 01:42:05 - 01:56:55 8843
CU-SBO 01:50:34 -22.4 Dark Up 70.2 140.1 Up 01:43:09 - 01:57:59 8517
Dunrhomin 01:50:32 -22.5 Dark Up 70.1 140.8 Up 01:43:07 - 01:57:57 8515
Nikitin 01:50:32 -22.5 Dark Up 70.2 140.4 Up 01:43:07 - 01:57:57 8512

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 444030, (2028/11/04 01:52UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 32.03  85
Scheat         23:03:46.8 +28:05:01  2.4  6.79  64
47Lam Peg      22:46:32.0 +23:33:56  3.9  1.60  69
PPM 114723     22:41:25.7 +23:50:47  6.9  0.40  70
PPM 114698     22:39:57.6 +23:47:48  8.7  0.17  71
444030         22:39:45.4 +23:57:37 16.9        71
Positions are for J2000

Event circumstances last updated at 2024/03/08 02:59:14 UT

Marc W. Buie, Southwest Research Institute

RECON