RECON: TNO occultation with 02VD130

Event between 02VD130 and star GA1140:02869443 with event index number of 1356253

Geocentric closest approach at 2025/01/04 11:08:48 UTC

J2000 position of star is 07:33:03.4 +25:36:57
Equinox of date position of star is 07:34:24.9 +25:33:59
Stellar brightness G=15.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 130 degrees from the moon. Moon is 23% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 32.8 AU from the Sun and 31.8 AU from the Earth.
The TNO is moving 24.1 km/sec on the sky relative to the star, or, 3.8 arcsec/hr.
The 1-sigma error in the time of the event is 472 seconds.
The 1-sigma cross-track error in the shadow position is 4068 km.
The sky-plane scale is 23076.5 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=207.0 km assuming a 5% albedo -- 8.6 sec chord
Diameter=84.5 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is 2:1E+4:2II
 
 
 
 
 
 

Star training set for 02VD130, (2025/01/04 11:09UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:50.7 +27:57:49  1.1  3.64 132
69Ups Gem      07:37:27.6 +26:50:17  4.1  1.43 130
PPM 097667     07:34:44.6 +26:03:30  8.5  0.50 129
PPM 097624     07:33:13.2 +25:44:10  9.8  0.35 129
PPM 097669     07:34:51.5 +25:40:26 10.5  0.13 130
02VD130        07:34:35.0 +25:33:37 15.0       130
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 1.9 sigma about the mid-time.
The median site spacing is 21.9 km RECON observability=1.0 and success probability=11.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 11:07:08 -36.2 Dark Down 43.1 256.3 Up 10:52:08 - 11:22:08 -1984
Kamloops 11:07:31 -45.2 Dark Down 51.9 243.1 Up 10:52:31 - 11:22:31 -2513
Kelowna 11:07:26 -45.0 Dark Down 51.8 245.0 Up 10:52:26 - 11:22:26 -2556
Peachland 11:07:27 -45.2 Dark Down 52.0 244.8 Up 10:52:27 - 11:22:27 -2573
Summerland 11:07:27 -45.2 Dark Down 52.0 245.1 Up 10:52:27 - 11:22:27 -2583
Penticton 11:07:26 -45.1 Dark Down 52.0 245.3 Up 10:52:26 - 11:22:26 -2586
Oliver 11:07:25 -45.3 Dark Down 52.1 245.7 Up 10:52:25 - 11:22:25 -2615
Anarchist Mountain Observatory 11:07:24 -45.2 Dark Down 52.1 246.1 Up 10:52:24 - 11:22:24 -2624
Tonasket 11:07:24 -45.3 Dark Down 52.3 246.4 Up 10:52:24 - 11:22:24 -2652
Okanogan 11:07:23 -45.6 Dark Down 52.5 246.6 Up 10:52:23 - 11:22:23 -2685
Brewster 11:07:22 -45.8 Dark Down 52.7 246.7 Up 10:52:22 - 11:22:22 -2714
Manson/Chelan 11:07:23 -46.1 Dark Down 53.0 246.6 Up 10:52:23 - 11:22:23 -2743
Victoria 11:07:32 -47.9 Dark Down 54.7 242.1 Up 10:52:32 - 11:22:32 -2781
Wenatchee 11:07:22 -46.3 Dark Down 53.3 247.0 Up 10:52:22 - 11:22:22 -2789
Ellensburg 11:07:21 -46.6 Dark Down 53.6 247.2 Up 10:52:21 - 11:22:21 -2831
Yakima 11:07:20 -46.7 Dark Down 53.8 247.7 Up 10:52:20 - 11:22:20 -2867
PNWRO 11:07:15 -45.8 Dark Down 52.9 250.2 Up 10:52:15 - 11:22:15 -2867
Toppenish/White Swan 11:07:19 -46.7 Dark Down 53.8 248.2 Up 10:52:19 - 11:22:19 -2880
Dunrhomin 11:06:29 -36.8 Dark Down 44.3 268.0 Up 10:51:29 - 11:21:29 -2889
CU-SBO 11:06:29 -36.9 Dark Down 44.4 268.2 Up 10:51:29 - 11:21:29 -2914
Goldendale 11:07:18 -47.1 Dark Down 54.2 248.4 Up 10:52:18 - 11:22:18 -2942
The Dalles 11:07:19 -47.5 Dark Down 54.6 248.3 Up 10:52:19 - 11:22:19 -2973
Maupin 11:07:17 -47.5 Dark Down 54.7 249.0 Up 10:52:17 - 11:22:17 -3006
Sisters 11:07:16 -48.1 Dark Down 55.3 249.6 Up 10:52:16 - 11:22:16 -3100
Bend 11:07:15 -48.0 Dark Down 55.2 250.2 Up 10:52:15 - 11:22:15 -3113
Oregon Observatory 11:07:15 -48.1 Dark Down 55.4 250.3 Up 10:52:15 - 11:22:15 -3133
North Lake 11:07:12 -47.9 Dark Down 55.2 251.7 Up 10:52:12 - 11:22:12 -3173
Lakeview 11:07:08 -47.8 Dark Down 55.1 253.7 Up 10:52:08 - 11:22:08 -3252
Chiloquin 11:07:13 -48.8 Dark Down 56.1 251.7 Up 10:52:13 - 11:22:13 -3265
Klamath Falls 11:07:12 -48.8 Dark Down 56.1 252.3 Up 10:52:12 - 11:22:12 -3294
Cedarville 11:07:06 -47.8 Dark Down 55.2 254.8 Up 10:52:06 - 11:22:06 -3306
Fall River/Burney 11:07:08 -48.8 Dark Down 56.2 254.3 Up 10:52:08 - 11:22:08 -3390
Susanville 11:07:05 -48.4 Dark Down 55.8 255.9 Up 10:52:05 - 11:22:05 -3424
Gimple 11:07:05 -48.6 Dark Down 56.1 256.1 Up 10:52:05 - 11:22:05 -3457
Greenville 11:07:05 -48.7 Dark Down 56.1 256.0 Up 10:52:05 - 11:22:05 -3459
Portola 11:07:03 -48.4 Dark Down 55.8 256.9 Up 10:52:03 - 11:22:03 -3474
Reno 11:07:00 -48.0 Dark Down 55.4 257.9 Up 10:52:00 - 11:22:00 -3476
Quincy 11:07:05 -48.7 Dark Down 56.2 256.3 Up 10:52:05 - 11:22:05 -3478
Yerington 11:06:57 -47.5 Dark Down 55.0 259.2 Up 10:51:57 - 11:21:57 -3505
Carson City 11:07:00 -48.0 Dark Down 55.5 258.4 Up 10:52:00 - 11:22:00 -3509
Tonopah 11:06:50 -46.2 Dark Down 53.7 262.0 Up 10:51:50 - 11:21:50 -3524
Gardnerville 11:06:59 -48.0 Dark Down 55.5 258.8 Up 10:51:59 - 11:21:59 -3530
Hawthorne 11:06:55 -47.2 Dark Down 54.7 260.3 Up 10:51:55 - 11:21:55 -3530
Lee Vining 11:06:55 -47.7 Dark Down 55.2 260.7 Up 10:51:55 - 11:21:55 -3600
Indian Springs 11:06:43 -45.1 Dark Down 52.7 265.1 Up 10:51:43 - 11:21:43 -3606
Beatty 11:06:46 -45.9 Dark Down 53.5 263.9 Up 10:51:46 - 11:21:46 -3615
Bishop 11:06:51 -47.2 Dark Down 54.7 262.1 Up 10:51:51 - 11:21:51 -3630
Henderson 11:06:40 -44.6 Dark Down 52.2 266.3 Up 10:51:40 - 11:21:40 -3631
Patrick 11:06:36 -43.7 Dark Down 51.3 267.7 Up 10:51:36 - 11:21:36 -3647
Kingman/Dolan Springs 11:06:35 -43.9 Dark Down 51.5 267.9 Up 10:51:35 - 11:21:35 -3675
Laughlin/Bullhead City 11:06:36 -44.3 Dark Down 51.9 267.6 Up 10:51:36 - 11:21:36 -3697
Mohave Valley 11:06:36 -44.3 Dark Down 51.9 268.0 Up 10:51:36 - 11:21:36 -3722
George/Scottsdale 11:06:26 -42.1 Dark Down 49.7 270.9 Up 10:51:26 - 11:21:26 -3728
Lake Havasu City 11:06:34 -44.1 Dark Down 51.7 268.6 Up 10:51:34 - 11:21:34 -3750
Parker 11:06:33 -44.1 Dark Down 51.7 269.1 Up 10:51:33 - 11:21:33 -3782
Idyllwild 11:06:39 -46.1 Dark Down 53.7 268.2 Up 10:51:39 - 11:21:39 -3912
Calipatria 11:06:34 -45.1 Dark Down 52.7 269.7 Up 10:51:34 - 11:21:34 -3925
Yuma 11:06:30 -44.4 Dark Down 52.0 270.7 Up 10:51:30 - 11:21:30 -3932
Wildwood 11:06:44 -47.6 Dark Down 55.2 266.6 Up 10:51:44 - 11:21:44 -3948

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 02VD130, (2025/01/04 11:09UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1  3.64 132
69Ups Gem      07:35:55.3 +26:53:42  4.1  1.43 130
PPM 097667     07:33:12.7 +26:06:50  8.5  0.50 129
PPM 097624     07:31:41.4 +25:47:27  9.8  0.35 129
PPM 097669     07:33:19.8 +25:43:46 10.5  0.13 130
02VD130        07:33:03.4 +25:36:57 15.0       129
Positions are for J2000

Event circumstances last updated at 2022/04/03 23:26:57 UT

Marc W. Buie, Southwest Research Institute

RECON