RECON: TNO occultation with 02VX130

Event between 02VX130 and star GA1140:01623210 with event index number of 2715851

Geocentric closest approach at 2028/02/05 05:37:48 UTC

J2000 position of star is 05:50:06.5 +24:03:01
Equinox of date position of star is 05:51:27.6 +24:03:19
Stellar brightness G=16.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 25 degrees from the moon. Moon is 65% illuminated.
TNO apparent brightness V=23.5

[RECON map]
TNO is 32.5 AU from the Sun and 31.9 AU from the Earth.
The TNO is moving 14.8 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 1312 seconds.
The 1-sigma cross-track error in the shadow position is 1174 km.
The sky-plane scale is 23101.5 km/arcsec.

The TNO has an absolute magnitude Hv=8.3
Diameter=129.4 km assuming a 5% albedo -- 8.7 sec chord
Diameter=52.8 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 02VX130, (2028/02/05 05:38UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:41.6 +07:24:36  0.4 16.69  33
Alnath         05:28:04.2 +28:37:43  1.6  7.01  19
132 Tau        05:50:44.5 +24:34:27  4.9  0.57  24
PPM 095035     05:55:16.9 +24:17:26  8.1  0.82  26
PPM 094957     05:52:19.4 +24:08:32  9.8  0.14  25
02VX130        05:51:49.6 +24:03:23 16.2        25
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 29.6 km RECON observability=1.0 and success probability=44.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 05:35:48 -48.7 Dark Up 55.9 224.4 Up 05:20:48 - 05:50:48 1669
Kamloops 05:36:49 -43.1 Dark Up 62.0 202.2 Up 05:21:49 - 05:51:49 1443
Kelowna 05:36:44 -44.0 Dark Up 62.5 204.5 Up 05:21:44 - 05:51:44 1365
Peachland 05:36:46 -43.9 Dark Up 62.7 204.0 Up 05:21:46 - 05:51:46 1353
Summerland 05:36:45 -44.0 Dark Up 62.8 204.3 Up 05:21:45 - 05:51:45 1338
Penticton 05:36:44 -44.1 Dark Up 62.8 204.6 Up 05:21:44 - 05:51:44 1332
Oliver 05:36:44 -44.3 Dark Up 63.2 204.9 Up 05:21:44 - 05:51:44 1296
Anarchist Mountain Observatory 05:36:43 -44.5 Dark Up 63.3 205.4 Up 05:21:43 - 05:51:43 1280
Tonasket 05:36:43 -44.6 Dark Up 63.6 205.5 Up 05:21:43 - 05:51:43 1249
Victoria 05:37:02 -42.5 Dark Up 64.7 197.8 Up 05:22:02 - 05:52:02 1221
Okanogan 05:36:44 -44.7 Dark Up 63.9 205.5 Up 05:21:44 - 05:51:44 1214
Brewster 05:36:45 -44.8 Dark Up 64.2 205.4 Up 05:21:45 - 05:51:45 1186
Manson/Chelan 05:36:46 -44.7 Dark Up 64.5 204.8 Up 05:21:46 - 05:51:46 1164
Wenatchee 05:36:47 -44.8 Dark Up 65.0 204.9 Up 05:21:47 - 05:51:47 1115
Ellensburg 05:36:47 -44.9 Dark Up 65.4 204.8 Up 05:21:47 - 05:51:47 1072
Yakima 05:36:47 -45.1 Dark Up 65.8 205.2 Up 05:21:47 - 05:51:47 1030
Toppenish/White Swan 05:36:46 -45.3 Dark Up 65.9 205.7 Up 05:21:46 - 05:51:46 1008
PNWRO 05:36:38 -46.3 Dark Up 65.8 209.2 Up 05:21:38 - 05:51:38 975
Goldendale 05:36:48 -45.3 Dark Up 66.6 205.4 Up 05:21:48 - 05:51:48 950
The Dalles 05:36:50 -45.2 Dark Up 66.9 204.8 Up 05:21:50 - 05:51:50 926
Maupin 05:36:49 -45.4 Dark Up 67.2 205.5 Up 05:21:49 - 05:51:49 883
Sisters 05:36:51 -45.5 Dark Up 68.2 205.3 Up 05:21:51 - 05:51:51 790
Bend 05:36:49 -45.8 Dark Up 68.3 206.1 Up 05:21:49 - 05:51:49 766
Oregon Observatory 05:36:50 -45.8 Dark Up 68.5 206.0 Up 05:21:50 - 05:51:50 748
North Lake 05:36:47 -46.4 Dark Up 68.9 208.0 Up 05:21:47 - 05:51:47 682
Chiloquin 05:36:51 -46.1 Dark Up 69.8 206.6 Up 05:21:51 - 05:51:51 609
Klamath Falls 05:36:50 -46.3 Dark Up 70.1 207.2 Up 05:21:50 - 05:51:50 573
Lakeview 05:36:43 -47.2 Dark Up 69.6 210.7 Up 05:21:43 - 05:51:43 573
Cedarville 05:36:42 -47.6 Dark Up 70.1 212.0 Up 05:21:42 - 05:51:42 504
Dunrhomin 05:35:21 -57.6 Dark Up 62.8 241.4 Up 05:20:21 - 05:50:21 482
Fall River/Burney 05:36:48 -47.0 Dark Up 71.0 209.7 Up 05:21:48 - 05:51:48 449
Susanville 05:36:43 -47.7 Dark Up 71.2 212.5 Up 05:21:43 - 05:51:43 384
Greenville 05:36:45 -47.7 Dark Up 71.6 212.2 Up 05:21:45 - 05:51:45 354
Gimple 05:36:45 -47.7 Dark Up 71.6 212.4 Up 05:21:45 - 05:51:45 354
Quincy 05:36:45 -47.7 Dark Up 71.8 212.6 Up 05:21:45 - 05:51:45 332
Portola 05:36:42 -48.1 Dark Up 71.7 214.0 Up 05:21:42 - 05:51:42 320
Reno 05:36:38 -48.7 Dark Up 71.6 216.0 Up 05:21:38 - 05:51:38 294
Carson City 05:36:38 -48.8 Dark Up 71.9 216.7 Up 05:21:38 - 05:51:38 255
Yerington 05:36:34 -49.3 Dark Up 71.8 218.7 Up 05:21:34 - 05:51:34 237
Gardnerville 05:36:38 -49.0 Dark Up 72.1 217.3 Up 05:21:38 - 05:51:38 229
Hawthorne 05:36:31 -49.9 Dark Up 71.9 220.8 Up 05:21:31 - 05:51:31 189
Tonopah 05:36:23 -51.1 Dark Up 71.5 225.0 Up 05:21:23 - 05:51:23 146
Lee Vining 05:36:33 -49.8 Dark Up 72.5 220.8 Up 05:21:33 - 05:51:33 127
Bishop 05:36:29 -50.5 Dark Up 72.6 223.8 Up 05:21:29 - 05:51:29 65
Beatty 05:36:19 -51.9 Dark Up 72.0 228.6 Up 05:21:19 - 05:51:19 23
Indian Springs 05:36:13 -52.8 Dark Up 71.6 231.6 Up 05:21:13 - 05:51:13 -6
Henderson 05:36:08 -53.5 Dark Up 71.4 234.3 Up 05:21:08 - 05:51:08 -59
Patrick 05:36:01 -54.6 Dark Up 71.1 237.9 Up 05:21:01 - 05:51:01 -119
Kingman/Dolan Springs 05:36:02 -54.5 Dark Up 71.3 238.1 Up 05:21:02 - 05:51:02 -144
Laughlin/Bullhead City 05:36:05 -54.1 Dark Up 71.7 237.2 Up 05:21:05 - 05:51:05 -151
Mohave Valley 05:36:05 -54.2 Dark Up 71.8 237.9 Up 05:21:05 - 05:51:05 -180
Lake Havasu City 05:36:03 -54.6 Dark Up 71.8 239.4 Up 05:21:03 - 05:51:03 -222
Parker 05:36:03 -54.7 Dark Up 72.0 240.4 Up 05:21:03 - 05:51:03 -260
George/Scottsdale 05:35:48 -56.7 Dark Up 70.4 245.5 Up 05:20:48 - 05:50:48 -287
Wildwood 05:36:28 -51.5 Dark Up 74.9 231.6 Up 05:21:28 - 05:51:28 -291
Idyllwild 05:36:17 -53.1 Dark Up 73.9 236.9 Up 05:21:17 - 05:51:17 -320
Calipatria 05:36:09 -54.2 Dark Up 73.4 241.0 Up 05:21:09 - 05:51:09 -379
Yuma 05:36:03 -55.0 Dark Up 72.9 243.9 Up 05:21:03 - 05:51:03 -421

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 02VX130, (2028/02/05 05:38UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 16.69  33
Alnath         05:26:17.6 +28:36:23  1.6  7.01  19
132 Tau        05:49:00.9 +24:34:02  4.9  0.57  24
PPM 095035     05:53:33.6 +24:17:13  8.1  0.82  26
PPM 094957     05:50:36.2 +24:08:11  9.8  0.14  25
02VX130        05:50:06.5 +24:03:01 16.2        25
Positions are for J2000

Event circumstances last updated at 2022/02/05 00:38:45 UT

Marc W. Buie, Southwest Research Institute

RECON