RECON: TNO occultation with 19299

Event between (19299) 96SZ4 and star GA1180:02003790 with event index number of 2541037

Geocentric closest approach at 2028/12/19 04:55:22 UTC

J2000 position of star is 05:58:09.3 +28:07:51
Equinox of date position of star is 05:59:41.9 +28:07:53
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 143 degrees from the moon. Moon is 11% illuminated.
Apparent brightness V=23.4

[RECON map]
Object is 31.1 AU from the Sun and 30.1 AU from the Earth.
Apparent velocity is 24.4 km/sec on the sky relative to the star, or, 4.0 arcsec/hr.
The 1-sigma error in the time of the event is 1299 seconds.
The 1-sigma cross-track error in the shadow position is 2214 km.
The sky-plane scale is 21857.7 km/arcsec.

The object has an absolute magnitude Hv=8.5
Diameter=144.5 km assuming a 5% albedo -- 5.0 sec chord
Diameter=59.0 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 19299, (2028/12/19 04:55UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:44.5 +07:24:36  0.4 20.74 141
Alnath         05:28:07.5 +28:37:46  1.6  7.02 136
PPM 095226     06:02:49.7 +27:34:16  6.0  0.84 144
PPM 095207     06:01:54.8 +28:07:30  8.3  0.43 144
PPM 095156     05:59:57.2 +28:11:16  9.0  0.06 143
19299          05:59:59.1 +28:07:53 16.7       144
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 0.7 sigma about the mid-time.
The median site spacing is 30.1 km RECON observability=1.0 and success probability=27.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 04:57:26 -45.8 Dark Down 48.1 104.3 Up 04:42:26 - 05:12:26 1045
Kelowna 04:57:26 -46.6 Dark Down 48.9 104.2 Up 04:42:26 - 05:12:26 949
Peachland 04:57:27 -46.4 Dark Down 48.7 103.8 Up 04:42:27 - 05:12:27 946
Summerland 04:57:27 -46.6 Dark Down 48.8 103.7 Up 04:42:27 - 05:12:27 930
Victoria 04:57:37 -44.6 Dark Down 46.6 99.2 Up 04:42:37 - 05:12:37 927
Penticton 04:57:27 -46.6 Dark Down 48.9 103.8 Up 04:42:27 - 05:12:27 922
Oliver 04:57:28 -46.8 Dark Down 49.0 103.4 Up 04:42:28 - 05:12:28 889
Sleaford 04:56:52 -52.8 Dark Down 55.8 121.5 Up 04:41:52 - 05:11:52 878
Anarchist Mountain Observatory 04:57:28 -47.0 Dark Down 49.1 103.4 Up 04:42:28 - 05:12:28 869
Okanogan 04:57:30 -47.0 Dark Down 49.1 102.4 Up 04:42:30 - 05:12:30 814
Brewster 04:57:31 -47.0 Dark Down 49.1 102.0 Up 04:42:31 - 05:12:31 794
Manson/Chelan 04:57:32 -46.8 Dark Down 48.9 101.4 Up 04:42:32 - 05:12:32 784
Wenatchee 04:57:34 -46.9 Dark Down 48.8 100.7 Up 04:42:34 - 05:12:34 744
Ellensburg 04:57:35 -46.9 Dark Down 48.8 100.1 Up 04:42:35 - 05:12:35 712
Yakima 04:57:36 -47.0 Dark Down 48.8 99.6 Up 04:42:36 - 05:12:36 674
Toppenish/White Swan 04:57:37 -47.1 Dark Down 49.0 99.5 Up 04:42:37 - 05:12:37 649
The Dalles 04:57:40 -46.8 Dark Down 48.6 98.0 Up 04:42:40 - 05:12:40 597
PNWRO 04:57:34 -48.2 Dark Down 50.1 100.4 Up 04:42:34 - 05:12:34 576
Maupin 04:57:41 -47.0 Dark Down 48.7 97.6 Up 04:42:41 - 05:12:41 555
Sisters 04:57:44 -46.9 Dark Down 48.5 96.2 Up 04:42:44 - 05:12:44 485
Bend 04:57:44 -47.1 Dark Down 48.7 96.1 Up 04:42:44 - 05:12:44 455
Oregon Observatory 04:57:45 -47.1 Dark Down 48.6 95.9 Up 04:42:45 - 05:12:45 442
Chiloquin 04:57:49 -47.1 Dark Down 48.4 94.1 Up 04:42:49 - 05:12:49 328
Klamath Falls 04:57:49 -47.2 Dark Down 48.5 93.7 Up 04:42:49 - 05:12:49 292
Cedarville 04:57:47 -48.5 Dark Down 49.8 94.1 Up 04:42:47 - 05:12:47 179
Fall River/Burney 04:57:51 -47.7 Dark Down 48.9 92.7 Up 04:42:51 - 05:12:51 167
Greenville 04:57:52 -48.2 Dark Down 49.3 91.9 Up 04:42:52 - 05:12:52 66
Gimple 04:57:52 -48.3 Dark Down 49.3 92.0 Up 04:42:52 - 05:12:52 63
Quincy 04:57:52 -48.2 Dark Down 49.3 91.7 Up 04:42:52 - 05:12:52 46
Portola 04:57:51 -48.6 Dark Down 49.6 91.9 Up 04:42:51 - 05:12:51 19
Reno 04:57:50 -49.1 Dark Down 50.1 92.0 Up 04:42:50 - 05:12:50 -26
Carson City 04:57:51 -49.2 Dark Down 50.2 91.6 Up 04:42:51 - 05:12:51 -62
Gardnerville 04:57:51 -49.3 Dark Down 50.2 91.3 Up 04:42:51 - 05:12:51 -88
Yerington 04:57:50 -49.7 Dark Down 50.7 91.8 Up 04:42:50 - 05:12:50 -100
Hawthorne 04:57:49 -50.2 Dark Down 51.1 91.5 Up 04:42:49 - 05:12:49 -161
Lee Vining 04:57:52 -49.9 Dark Down 50.7 90.5 Up 04:42:52 - 05:12:52 -203
Bishop 04:57:51 -50.6 Dark Down 51.3 90.2 Up 04:42:51 - 05:12:51 -285
Dunrhomin 04:57:10 -59.6 Dark Down 61.0 104.7 Up 04:42:10 - 05:12:10 -319
Nikitin 04:57:10 -59.6 Dark Down 61.1 104.4 Up 04:42:10 - 05:12:10 -337
CU-SBO 04:57:11 -59.6 Dark Down 61.0 104.2 Up 04:42:11 - 05:12:11 -342
Beatty 04:57:48 -51.9 Dark Down 52.6 90.6 Up 04:42:48 - 05:12:48 -379
Wildwood 04:57:57 -50.8 Dark Down 51.1 86.1 Up 04:42:57 - 05:12:57 -610
Patrick 04:57:42 -54.5 Dark Down 54.9 90.3 Up 04:42:42 - 05:12:42 -611
Laughlin/Bullhead City 04:57:45 -53.9 Dark Down 54.4 89.6 Up 04:42:45 - 05:12:45 -617
Lake Havasu City 04:57:45 -54.2 Dark Down 54.6 88.8 Up 04:42:45 - 05:12:45 -694
Idyllwild 04:57:53 -52.4 Dark Down 52.6 86.5 Up 04:42:53 - 05:12:53 -703
Calipatria 04:57:51 -53.4 Dark Down 53.5 86.3 Up 04:42:51 - 05:12:51 -801
George/Scottsdale 04:57:39 -56.3 Dark Down 56.6 89.0 Up 04:42:39 - 05:12:39 -842
Yuma 04:57:49 -54.2 Dark Down 54.2 86.1 Up 04:42:49 - 05:12:49 -872

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 19299, (2028/12/19 04:55UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 20.74 141
Alnath         05:26:17.6 +28:36:23  1.6  7.02 136
PPM 095226     06:01:00.4 +27:34:21  6.0  0.84 144
PPM 095207     06:00:05.0 +28:07:33  8.3  0.43 144
PPM 095156     05:58:07.4 +28:11:14  9.0  0.06 143
19299          05:58:09.3 +28:07:51 16.7       143
Positions are for J2000

Event circumstances last updated at 2024/06/10 02:02:31 UT

Marc W. Buie, Southwest Research Institute

RECON