RECON: TNO occultation with 14RN74

Event between 14RN74 and star GA0920:00452325 with event index number of 2515852

Geocentric closest approach at 2027/11/07 11:40:39 UTC

J2000 position of star is 04:38:16.8 +02:45:51
Equinox of date position of star is 04:39:31.9 +02:48:38
Stellar brightness G=13.2, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 101 degrees from the moon. Moon is 61% illuminated.
Apparent brightness V=22.3

[RECON map]
Object is 28.1 AU from the Sun and 27.2 AU from the Earth.
Apparent velocity is 21.6 km/sec on the sky relative to the star, or, 3.9 arcsec/hr.
The 1-sigma error in the time of the event is 138 seconds.
The 1-sigma cross-track error in the shadow position is 1721 km.
The sky-plane scale is 19741.5 km/arcsec.

The object has an absolute magnitude Hv=7.8
Diameter=166.0 km assuming a 5% albedo -- 7.8 sec chord
Diameter=67.8 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 14RN74, (2027/11/07 11:33UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:31.3 +16:33:48  0.8 13.76 103
67Bet Eri      05:09:13.3 -05:03:09  2.8 10.78 107
PPM 147738     04:38:39.9 +01:03:09  5.3  1.79 101
PPM 147812     04:42:24.8 +02:33:27  8.2  0.72 102
PPM 147736     04:38:36.3 +02:44:20  9.6  0.29 101
14RN74         04:39:44.2 +02:49:05 13.2       101
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 29.7 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 11:38:14 -32.5 Dark Down 35.4 219.2 Up 11:26:14 - 11:50:13 2205
Sleaford 11:37:41 -23.4 Dark Down 28.0 233.6 Low 11:25:41 - 11:49:40 2165
Kelowna 11:38:11 -32.1 Dark Down 35.7 220.6 Up 11:26:11 - 11:50:10 2126
Peachland 11:38:11 -32.3 Dark Down 35.9 220.3 Up 11:26:12 - 11:50:11 2121
Summerland 11:38:11 -32.3 Dark Down 36.0 220.5 Up 11:26:12 - 11:50:11 2107
Penticton 11:38:10 -32.2 Dark Down 36.0 220.7 Up 11:26:11 - 11:50:10 2100
Oliver 11:38:10 -32.3 Dark Down 36.2 220.8 Up 11:26:11 - 11:50:10 2070
Victoria 11:38:21 -34.9 Dark Down 38.3 216.8 Up 11:26:21 - 11:50:20 2066
Anarchist Mountain Observatory 11:38:09 -32.2 Dark Down 36.3 221.1 Up 11:26:10 - 11:50:09 2054
Okanogan 11:38:09 -32.5 Dark Down 36.9 221.2 Up 11:26:10 - 11:50:09 2001
Brewster 11:38:10 -32.7 Dark Down 37.2 221.1 Up 11:26:10 - 11:50:09 1981
Manson/Chelan 11:38:11 -33.0 Dark Down 37.5 220.8 Up 11:26:11 - 11:50:10 1968
Wenatchee 11:38:10 -33.2 Dark Down 37.9 220.8 Up 11:26:11 - 11:50:10 1929
Ellensburg 11:38:11 -33.5 Dark Down 38.3 220.8 Up 11:26:11 - 11:50:10 1896
Yakima 11:38:10 -33.6 Dark Down 38.6 221.0 Up 11:26:11 - 11:50:10 1861
Toppenish/White Swan 11:38:10 -33.5 Dark Down 38.7 221.3 Up 11:26:10 - 11:50:09 1840
PNWRO 11:38:05 -32.5 Dark Down 38.3 223.2 Up 11:26:05 - 11:50:04 1787
The Dalles 11:38:11 -34.2 Dark Down 39.7 220.8 Up 11:26:12 - 11:50:11 1783
Maupin 11:38:11 -34.2 Dark Down 39.9 221.1 Up 11:26:11 - 11:50:10 1744
Sisters 11:38:11 -34.7 Dark Down 40.8 221.1 Up 11:26:12 - 11:50:11 1673
Bend 11:38:10 -34.6 Dark Down 40.9 221.5 Up 11:26:11 - 11:50:10 1648
Oregon Observatory 11:38:10 -34.7 Dark Down 41.1 221.5 Up 11:26:11 - 11:50:10 1635
Chiloquin 11:38:11 -35.2 Dark Down 42.3 221.7 Up 11:26:12 - 11:50:11 1522
Klamath Falls 11:38:11 -35.3 Dark Down 42.5 222.1 Up 11:26:11 - 11:50:10 1489
Cedarville 11:38:05 -34.2 Dark Down 42.2 224.3 Up 11:26:05 - 11:50:04 1401
Fall River/Burney 11:38:08 -35.2 Dark Down 43.2 223.2 Up 11:26:09 - 11:50:08 1374
Greenville 11:38:06 -35.0 Dark Down 43.6 224.3 Up 11:26:07 - 11:50:06 1283
Gimple 11:38:06 -34.9 Dark Down 43.5 224.4 Up 11:26:07 - 11:50:06 1281
Quincy 11:38:06 -35.0 Dark Down 43.7 224.5 Up 11:26:06 - 11:50:05 1264
Portola 11:38:05 -34.7 Dark Down 43.6 225.1 Up 11:26:05 - 11:50:04 1245
Reno 11:38:02 -34.2 Dark Down 43.4 226.0 Up 11:26:03 - 11:50:02 1210
Carson City 11:38:02 -34.2 Dark Down 43.6 226.3 Up 11:26:02 - 11:50:01 1175
Gardnerville 11:38:02 -34.2 Dark Down 43.8 226.5 Up 11:26:02 - 11:50:01 1151
Yerington 11:38:00 -33.8 Dark Down 43.4 227.1 Up 11:26:00 - 11:49:59 1147
Hawthorne 11:37:58 -33.4 Dark Down 43.4 228.0 Up 11:25:58 - 11:49:57 1095
Dunrhomin 11:37:19 -23.1 Dark Down 34.1 240.2 Up 11:25:19 - 11:49:18 1084
Nikitin 11:37:19 -23.1 Dark Down 34.2 240.3 Up 11:25:19 - 11:49:18 1066
CU-SBO 11:37:19 -23.2 Dark Down 34.3 240.3 Up 11:25:19 - 11:49:18 1061
Lee Vining 11:37:59 -33.9 Dark Down 44.1 227.9 Up 11:25:59 - 11:49:58 1048
Bishop 11:37:56 -33.3 Dark Down 44.1 229.1 Up 11:25:56 - 11:49:55 979
Beatty 11:37:50 -32.1 Dark Down 43.4 231.2 Up 11:25:51 - 11:49:50 909
Patrick 11:37:40 -29.8 Dark Down 42.4 235.3 Up 11:25:40 - 11:49:39 720
Laughlin/Bullhead City 11:37:42 -30.4 Dark Down 43.0 234.8 Up 11:25:42 - 11:49:41 706
Wildwood 11:37:55 -33.7 Dark Down 46.3 231.4 Up 11:25:55 - 11:49:54 661
Lake Havasu City 11:37:41 -30.2 Dark Down 43.2 235.6 Up 11:25:41 - 11:49:40 635
Idyllwild 11:37:48 -32.2 Dark Down 45.3 233.7 Up 11:25:49 - 11:49:48 595
George/Scottsdale 11:37:32 -28.2 Dark Down 42.0 238.5 Up 11:25:33 - 11:49:32 521
Calipatria 11:37:44 -31.2 Dark Down 44.8 235.4 Up 11:25:44 - 11:49:43 515
Yuma 11:37:41 -30.5 Dark Down 44.4 236.7 Up 11:25:41 - 11:49:40 458

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 14RN74, (2027/11/07 11:33UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 13.76 103
67Bet Eri      05:07:50.8 -05:05:13  2.8 10.78 107
PPM 147738     04:37:13.7 +00:59:54  5.3  1.79 101
PPM 147812     04:40:57.6 +02:30:20  8.2  0.72 102
PPM 147736     04:37:09.0 +02:41:05  9.6  0.29 101
14RN74         04:38:16.8 +02:45:51 13.2       101
Positions are for J2000

Event circumstances last updated at 2023/12/08 04:35:44 UT

Marc W. Buie, Southwest Research Institute

RECON