RECON: TNO occultation with 04VV130

Event between 04VV130 and star GA1280:02716939 with event index number of 2567737

Geocentric closest approach at 2025/11/05 07:00:52 UTC

J2000 position of star is 05:51:57.2 +39:53:32
Equinox of date position of star is 05:53:37.6 +39:53:47
Stellar brightness G=14.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 50 degrees from the moon. Moon is 100% illuminated.
Apparent brightness V=22.7

[RECON map]
Object is 32.2 AU from the Sun and 31.5 AU from the Earth.
Apparent velocity is 17.6 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 219 seconds.
The 1-sigma cross-track error in the shadow position is 2768 km.
The sky-plane scale is 22855.4 km/arcsec.

The object has an absolute magnitude Hv=7.5
Diameter=194.1 km assuming a 5% albedo -- 11.0 sec chord
Diameter=79.2 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 04VV130, (2025/11/05 07:01UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:53.8 +27:57:42  1.1 26.17  74
34Bet Aur      06:01:25.5 +44:56:50  1.9  5.24  52
PPM 070954     05:54:27.6 +39:34:43  6.5  0.35  50
PPM 070939     05:53:44.4 +39:34:02  8.0  0.33  50
PPM 048519     05:54:33.0 +40:11:00 11.1  0.32  50
04VV130        05:53:45.5 +39:53:48 14.9        50
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 4.1 sigma about the mid-time.
The median site spacing is 31.1 km RECON observability=1.0 and success probability=13.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 07:04:44 -54.2 Dark Up 49.3 82.4 Up 06:49:44 - 07:19:44 -2733
Sleaford 07:03:59 -53.5 Dark Up 58.2 95.2 Up 06:48:59 - 07:18:59 -2756
Kelowna 07:04:43 -55.1 Dark Up 49.8 82.0 Up 06:49:43 - 07:19:43 -2837
Peachland 07:04:45 -55.2 Dark Up 49.5 81.7 Up 06:49:45 - 07:19:45 -2843
Summerland 07:04:45 -55.3 Dark Up 49.6 81.6 Up 06:49:45 - 07:19:45 -2861
Penticton 07:04:44 -55.4 Dark Up 49.6 81.6 Up 06:49:44 - 07:19:44 -2870
Victoria 07:04:56 -55.5 Dark Up 47.0 78.1 Up 06:49:56 - 07:19:56 -2901
Oliver 07:04:45 -55.7 Dark Up 49.6 81.2 Up 06:49:45 - 07:19:45 -2908
Anarchist Mountain Observatory 07:04:44 -55.9 Dark Up 49.7 81.1 Up 06:49:44 - 07:19:44 -2930
Okanogan 07:04:45 -56.5 Dark Up 49.4 80.2 Up 06:49:45 - 07:19:45 -2995
Brewster 07:04:47 -56.8 Dark Up 49.3 79.8 Up 06:49:47 - 07:19:47 -3020
Manson/Chelan 07:04:49 -56.9 Dark Up 49.0 79.3 Up 06:49:49 - 07:19:49 -3035
Wenatchee 07:04:49 -57.3 Dark Up 48.8 78.7 Up 06:49:49 - 07:19:49 -3083
Ellensburg 07:04:51 -57.6 Dark Up 48.6 78.1 Up 06:49:51 - 07:19:51 -3123
Yakima 07:04:51 -58.0 Dark Up 48.5 77.6 Up 06:49:51 - 07:19:51 -3166
Toppenish/White Swan 07:04:51 -58.3 Dark Up 48.5 77.5 Up 06:49:51 - 07:19:51 -3193
The Dalles 07:04:54 -58.8 Dark Up 47.8 76.2 Up 06:49:54 - 07:19:54 -3260
PNWRO 07:04:46 -58.9 Dark Up 49.5 77.9 Up 06:49:46 - 07:19:46 -3262
Maupin 07:04:55 -59.2 Dark Up 47.8 75.8 Up 06:49:55 - 07:19:55 -3307
Sisters 07:04:58 -59.9 Dark Up 47.3 74.7 Up 06:49:58 - 07:19:58 -3391
Bend 07:04:57 -60.2 Dark Up 47.4 74.5 Up 06:49:57 - 07:19:57 -3422
Oregon Observatory 07:04:57 -60.4 Dark Up 47.2 74.3 Up 06:49:57 - 07:19:57 -3437
Chiloquin 07:05:01 -61.5 Dark Up 46.6 72.8 Up 06:50:01 - 07:20:01 -3569
Klamath Falls 07:05:01 -61.8 Dark Up 46.5 72.5 Up 06:50:01 - 07:20:01 -3607
Cedarville 07:04:55 -62.9 Dark Up 47.4 72.4 Up 06:49:55 - 07:19:55 -3717
Fall River/Burney 07:05:01 -63.0 Dark Up 46.4 71.4 Up 06:50:01 - 07:20:01 -3742
Greenville 07:05:00 -63.9 Dark Up 46.5 70.7 Up 06:50:00 - 07:20:00 -3849
Gimple 07:04:59 -64.0 Dark Up 46.5 70.7 Up 06:49:59 - 07:19:59 -3851
Quincy 07:05:00 -64.1 Dark Up 46.4 70.5 Up 06:50:00 - 07:20:00 -3871
Portola 07:04:58 -64.4 Dark Up 46.7 70.6 Up 06:49:58 - 07:19:58 -3895
Reno 07:04:56 -64.8 Dark Up 47.1 70.5 Up 06:49:56 - 07:19:56 -3938
Carson City 07:04:56 -65.2 Dark Up 47.0 70.2 Up 06:49:56 - 07:19:56 -3977
Gardnerville 07:04:56 -65.4 Dark Up 46.9 69.9 Up 06:49:56 - 07:19:56 -4004
Yerington 07:04:54 -65.5 Dark Up 47.4 70.2 Up 06:49:54 - 07:19:54 -4011
Dunrhomin 07:04:02 -65.1 Dark Up 57.9 76.6 Up 06:49:02 - 07:19:02 -4070
Hawthorne 07:04:53 -66.1 Dark Up 47.6 69.9 Up 06:49:53 - 07:19:53 -4072
Nikitin 07:04:02 -65.3 Dark Up 57.8 76.3 Up 06:49:02 - 07:19:02 -4090
CU-SBO 07:04:02 -65.4 Dark Up 57.8 76.2 Up 06:49:02 - 07:19:02 -4096
Lee Vining 07:04:55 -66.5 Dark Up 47.0 69.2 Up 06:49:55 - 07:19:55 -4122
Bishop 07:04:53 -67.3 Dark Up 47.4 68.8 Up 06:49:53 - 07:19:53 -4202
Beatty 07:04:48 -68.1 Dark Up 48.4 68.8 Up 06:49:48 - 07:19:48 -4284
Patrick 07:04:37 -70.1 Dark Up 50.0 67.8 Up 06:49:37 - 07:19:37 -4496
Laughlin/Bullhead City 07:04:40 -70.2 Dark Up 49.4 67.4 Up 06:49:40 - 07:19:40 -4510
Wildwood 07:04:56 -70.2 Dark Up 45.9 65.5 Up 06:49:56 - 07:19:56 -4545
Lake Havasu City 07:04:39 -70.9 Dark Up 49.3 66.8 Up 06:49:39 - 07:19:39 -4587
Idyllwild 07:04:48 -71.1 Dark Up 47.2 65.5 Up 06:49:48 - 07:19:48 -4623
George/Scottsdale 07:04:30 -72.0 Dark Up 50.8 66.3 Up 06:49:30 - 07:19:30 -4710
Calipatria 07:04:45 -72.0 Dark Up 47.8 65.1 Up 06:49:45 - 07:19:45 -4711
Yuma 07:04:41 -72.6 Dark Up 48.3 64.8 Up 06:49:41 - 07:19:41 -4773

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 04VV130, (2025/11/05 07:01UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 26.17  74
34Bet Aur      05:59:31.6 +44:56:51  1.9  5.24  52
PPM 070954     05:52:39.6 +39:34:29  6.5  0.35  50
PPM 070939     05:51:56.4 +39:33:46  8.0  0.33  50
PPM 048519     05:52:44.4 +40:10:46 11.1  0.32  50
04VV130        05:51:57.2 +39:53:32 14.9        50
Positions are for J2000

Event circumstances last updated at 2023/12/16 05:24:55 UT

Marc W. Buie, Southwest Research Institute

RECON