RECON: TNO occultation with 14JQ92

Event between 14JQ92 and star GA0860:11054674 with event index number of 2492573

Geocentric closest approach at 2028/09/10 04:21:15 UTC

J2000 position of star is 18:58:56.6 -02:38:24
Equinox of date position of star is 19:00:08.5 -02:36:25
Stellar brightness G=15.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 126 degrees from the moon. Moon is 69% illuminated.
TNO apparent brightness V=23.1

[RECON map]
TNO is 28.7 AU from the Sun and 28.3 AU from the Earth.
The TNO is moving 12.9 km/sec on the sky relative to the star, or, 2.3 arcsec/hr.
The 1-sigma error in the time of the event is 166 seconds.
The 1-sigma cross-track error in the shadow position is 5821 km.
The sky-plane scale is 20506.8 km/arcsec.

The TNO has an absolute magnitude Hv=8.4
Diameter=127.6 km assuming a 5% albedo -- 9.9 sec chord
Diameter=52.1 km assuming a 30% albedo -- 4.0 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 

Star training set for 14JQ92, (2028/09/10 04:21UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:10.3 -26:29:35  0.9 43.01 167
Tarazed        19:47:37.4 +10:41:06  2.7 17.73 109
PPM 180493     18:57:52.1 -01:45:39  6.2  1.06 126
PPM 202393     19:01:07.6 -02:47:38  8.0  0.26 126
PPM 202376     19:00:22.5 -02:39:20 10.0  0.06 126
14JQ92         19:00:26.6 -02:35:55 15.3       125
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 16.2 km RECON observability=1.0 and success probability=5.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Nikitin 04:15:24 18.5 Sun up Up -2.9 269.5 Not Up 04:01:05 - 04:29:43 9813
Victoria 04:15:39 -16.3 AT Down 38.6 187.0 Up 04:01:20 - 04:29:58 7446
Kamloops 04:15:18 -16.9 AT Up 36.2 190.5 Up 04:00:59 - 04:29:37 7350
Peachland 04:15:24 -17.7 AT Up 37.0 191.4 Up 04:01:05 - 04:29:43 7271
Summerland 04:15:22 -17.9 AT Up 37.2 191.5 Up 04:01:03 - 04:29:41 7258
Kelowna 04:15:18 -17.8 AT Up 36.9 191.7 Up 04:00:59 - 04:29:37 7258
Penticton 04:15:22 -18.0 AT Up 37.2 191.7 Up 04:01:03 - 04:29:41 7248
Oliver 04:15:25 -18.2 Dark Up 37.6 191.7 Up 04:01:06 - 04:29:44 7232
Anarchist Mountain Observatory 04:15:25 -18.4 Dark Up 37.7 192.0 Up 04:01:06 - 04:29:44 7212
Manson/Chelan 04:15:32 -18.5 Dark Down 38.9 191.2 Up 04:01:13 - 04:29:51 7210
Wenatchee 04:15:33 -18.6 Dark Down 39.4 191.1 Up 04:01:14 - 04:29:52 7199
Brewster 04:15:31 -18.6 Dark Down 38.7 191.6 Up 04:01:12 - 04:29:50 7196
Okanogan 04:15:27 -18.6 Dark Up 38.4 191.8 Up 04:01:08 - 04:29:46 7196
Ellensburg 04:15:37 -18.7 Dark Down 39.8 190.9 Up 04:01:18 - 04:29:56 7194
Yakima 04:15:39 -18.9 Dark Down 40.2 190.9 Up 04:01:20 - 04:29:58 7176
The Dalles 04:15:46 -19.0 Dark Down 41.3 190.3 Up 04:01:27 - 04:30:05 7171
Toppenish/White Swan 04:15:39 -19.1 Dark Down 40.4 191.2 Up 04:01:20 - 04:29:58 7154
Maupin 04:15:47 -19.3 Dark Down 41.7 190.5 Up 04:01:28 - 04:30:06 7144
Sisters 04:15:53 -19.4 Dark Down 42.6 190.0 Up 04:01:34 - 04:30:12 7136
Oregon Observatory 04:15:54 -19.7 Dark Down 43.0 190.3 Up 04:01:35 - 04:30:13 7108
Bend 04:15:53 -19.7 Dark Down 42.8 190.4 Up 04:01:34 - 04:30:12 7107
Chiloquin 04:16:02 -20.1 Dark Down 44.3 190.0 Up 04:01:43 - 04:30:21 7074
Klamath Falls 04:16:03 -20.3 Dark Down 44.7 190.2 Up 04:01:44 - 04:30:22 7052
PNWRO 04:15:37 -20.2 Dark Down 40.6 193.2 Up 04:01:18 - 04:29:56 7038
Fall River/Burney 04:16:07 -21.1 Dark Down 45.8 190.9 Up 04:01:48 - 04:30:26 6967
Cedarville 04:16:01 -21.6 Dark Down 45.1 192.5 Up 04:01:42 - 04:30:20 6904
Greenville 04:16:10 -21.8 Dark Down 46.6 191.8 Up 04:01:51 - 04:30:29 6890
Gimple 04:16:10 -21.8 Dark Down 46.6 191.9 Up 04:01:51 - 04:30:29 6884
Quincy 04:16:14 -21.9 Dark Down 46.8 191.9 Up 04:01:55 - 04:30:33 6880
Portola 04:16:11 -22.3 Dark Down 46.8 192.6 Up 04:01:52 - 04:30:30 6838
Reno 04:16:12 -22.8 Dark Down 47.0 193.6 Up 04:01:53 - 04:30:31 6777
Carson City 04:16:11 -23.0 Dark Down 47.3 193.7 Up 04:01:52 - 04:30:30 6757
Gardnerville 04:16:13 -23.2 Dark Down 47.5 193.8 Up 04:01:54 - 04:30:32 6741
Yerington 04:16:13 -23.6 Dark Down 47.4 194.7 Up 04:01:54 - 04:30:32 6700
Lee Vining 04:16:16 -24.1 Dark Down 48.4 195.0 Up 04:01:57 - 04:30:35 6643
Hawthorne 04:16:11 -24.1 Dark Down 47.7 195.6 Up 04:01:52 - 04:30:30 6636
Sleaford 04:14:36 -23.2 Dark Up 32.0 207.1 Up 04:00:17 - 04:28:55 6585
Bishop 04:16:16 -24.9 Dark Down 48.8 196.3 Up 04:01:57 - 04:30:35 6556
Beatty 04:16:13 -26.2 Dark Down 48.8 198.8 Up 04:01:54 - 04:30:32 6408
Wildwood 04:16:34 -26.3 Dark Down 52.0 197.2 Up 04:02:15 - 04:30:53 6393
Idyllwild 04:16:29 -27.8 Dark Down 51.8 200.3 Up 04:02:10 - 04:30:48 6225
Laughlin/Bullhead City 04:16:14 -28.6 Dark Down 49.8 202.8 Up 04:01:55 - 04:30:33 6143
Patrick 04:16:11 -29.0 Dark Down 49.4 203.7 Up 04:01:52 - 04:30:30 6103
Calipatria 04:16:28 -29.0 Dark Down 52.0 202.4 Up 04:02:09 - 04:30:47 6097
Lake Havasu City 04:16:20 -29.1 Dark Down 50.4 203.5 Up 04:02:01 - 04:30:39 6084
Yuma 04:16:30 -29.8 Dark Down 52.1 204.0 Up 04:02:11 - 04:30:49 6001
George/Scottsdale 04:16:13 -31.3 Dark Down 50.2 207.5 Up 04:01:54 - 04:30:32 5847
Dunrhomin 04:15:21 -31.6 Dark Up 42.0 212.6 Up 04:01:02 - 04:29:40 5779
CU-SBO 04:15:22 -31.7 Dark Up 42.2 212.6 Up 04:01:03 - 04:29:41 5770

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 14JQ92, (2028/09/10 04:21UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 43.01 167
Tarazed        19:46:15.6 +10:36:48  2.7 17.73 109
PPM 180493     18:56:22.7 -01:48:01  6.2  1.06 126
PPM 202393     18:59:37.6 -02:50:08  8.0  0.26 126
PPM 202376     18:58:52.6 -02:41:47 10.0  0.06 126
14JQ92         18:58:56.6 -02:38:24 15.3       126
Positions are for J2000

Event circumstances last updated at 2022/12/05 03:26:56 UT

Marc W. Buie, Southwest Research Institute

RECON