RECON: TNO occultation with 02VD130

Event between 02VD130 and star GA1140:02932941 with event index number of 1444751

Geocentric closest approach at 2025/11/19 09:01:37 UTC

J2000 position of star is 07:46:47.4 +25:04:16
Equinox of date position of star is 07:47:57.2 +25:01:22
Stellar brightness G=13.5, use SENSEUP=32
Star is 114 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=22.6

[RECON map]
TNO is 32.9 AU from the Sun and 32.3 AU from the Earth.
The TNO is moving 10.9 km/sec on the sky relative to the star, or, 1.7 arcsec/hr.
The 1-sigma error in the time of the event is 337 seconds.
The 1-sigma cross-track error in the shadow position is 2679 km.
The sky-plane scale is 23455.3 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=207.0 km assuming a 5% albedo -- 19.0 sec chord
Diameter=84.5 km assuming a 30% albedo -- 7.8 sec chord
Dynamical classification is 2:1E+4:2II
 
 
 
 
 
 

Star training set for 02VD130, (2025/11/19 09:02UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:54.1 +27:57:42  1.1  2.97 115
77Kap Gem      07:46:00.4 +24:20:02  3.6  0.86 114
PPM 098001     07:50:52.2 +24:25:19  7.6  0.82 113
PPM 097959     07:49:09.0 +25:24:12  9.3  0.44 113
PPM 097951     07:48:43.5 +24:48:11 10.3  0.22 113
02VD130        07:48:21.4 +25:00:21 13.5       113
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 2.7 sigma about the mid-time.
The median site spacing is 23.7 km RECON observability=1.0 and success probability=11.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 09:07:07 -55.3 Dark Down 50.1 113.2 Up 08:52:07 - 09:22:07 -3075
Summerland 09:07:09 -55.7 Dark Down 50.0 112.6 Up 08:52:09 - 09:22:09 -3106
Penticton 09:07:09 -55.7 Dark Down 50.1 112.6 Up 08:52:09 - 09:22:09 -3113
Okanagan Falls 09:07:09 -55.9 Dark Down 50.2 112.4 Up 08:52:09 - 09:22:09 -3133
Oliver 09:07:10 -56.0 Dark Down 50.2 112.2 Up 08:52:10 - 09:22:10 -3151
Anarchist Mountain Observatory 09:07:09 -56.0 Dark Down 50.4 112.2 Up 08:52:09 - 09:22:09 -3169
Oroville 09:07:09 -56.1 Dark Down 50.4 112.1 Up 08:52:09 - 09:22:09 -3177
Tonasket 09:07:10 -56.3 Dark Down 50.5 111.8 Up 08:52:10 - 09:22:10 -3201
Okanogan 09:07:11 -56.6 Dark Down 50.5 111.3 Up 08:52:11 - 09:22:11 -3237
Brewster 09:07:13 -56.9 Dark Down 50.5 110.8 Up 08:52:13 - 09:22:13 -3266
Manson/Chelan 09:07:15 -57.2 Dark Down 50.4 110.2 Up 08:52:15 - 09:22:15 -3288
Entiat 09:07:16 -57.4 Dark Down 50.4 109.8 Up 08:52:16 - 09:22:16 -3311
Wenatchee 09:07:17 -57.7 Dark Down 50.4 109.5 Up 08:52:17 - 09:22:17 -3339
Ellensburg 09:07:19 -58.1 Dark Down 50.4 108.8 Up 08:52:19 - 09:22:19 -3383
Yakima 09:07:19 -58.4 Dark Down 50.5 108.3 Up 08:52:19 - 09:22:19 -3426
Toppenish/White Swan 09:07:18 -58.5 Dark Down 50.7 108.2 Up 08:52:18 - 09:22:18 -3450
Pasco 09:07:12 -58.1 Dark Down 51.6 109.3 Up 08:52:12 - 09:22:12 -3463
PNWRO 09:07:11 -58.2 Dark Down 51.8 109.2 Up 08:52:11 - 09:22:11 -3490
George/Umatilla 09:07:14 -58.4 Dark Down 51.5 108.7 Up 08:52:14 - 09:22:14 -3499
Goldendale 09:07:22 -59.1 Dark Down 50.6 107.2 Up 08:52:22 - 09:22:22 -3509
The Dalles 09:07:24 -59.5 Dark Down 50.4 106.6 Up 08:52:24 - 09:22:24 -3532
Maupin 09:07:24 -59.8 Dark Down 50.6 106.2 Up 08:52:24 - 09:22:24 -3578
Madras/Culver 09:07:25 -60.2 Dark Down 50.7 105.5 Up 08:52:25 - 09:22:25 -3637
Sisters 09:07:29 -60.7 Dark Down 50.5 104.7 Up 08:52:29 - 09:22:29 -3672
Redmond 09:07:25 -60.5 Dark Down 50.8 105.0 Up 08:52:25 - 09:22:25 -3675
Bend 09:07:28 -60.7 Dark Down 50.8 104.6 Up 08:52:28 - 09:22:28 -3698
Oregon Observatory 09:07:29 -60.9 Dark Down 50.7 104.3 Up 08:52:29 - 09:22:29 -3717
La Pine/Gilchrist 09:07:29 -61.1 Dark Down 50.7 104.0 Up 08:52:29 - 09:22:29 -3739
North Lake 09:07:26 -61.2 Dark Down 51.3 104.0 Up 08:52:26 - 09:22:26 -3787
Paisley 09:07:25 -61.4 Dark Down 51.6 103.7 Up 08:52:25 - 09:22:25 -3848
Chiloquin 09:07:33 -62.1 Dark Down 50.7 102.4 Up 08:52:33 - 09:22:33 -3859
Klamath Falls 09:07:32 -62.3 Dark Down 50.9 102.1 Up 08:52:32 - 09:22:32 -3897
Lakeview 09:07:25 -61.7 Dark Down 51.9 103.2 Up 08:52:25 - 09:22:25 -3903
Tulelake 09:07:31 -62.4 Dark Down 51.1 102.0 Up 08:52:31 - 09:22:31 -3927
Cedarville 09:07:24 -62.1 Dark Down 52.2 102.6 Up 08:52:24 - 09:22:24 -3975
Fall River/Burney 09:07:32 -63.0 Dark Down 51.4 101.0 Up 08:52:32 - 09:22:32 -4026
Niwot 09:05:49 -53.7 Dark Down 63.1 115.8 Up 08:50:49 - 09:20:49 -4062
SwRI 09:05:50 -53.9 Dark Down 63.1 115.5 Up 08:50:50 - 09:20:50 -4075
Susanville 09:07:27 -63.1 Dark Down 52.0 100.8 Up 08:52:27 - 09:22:27 -4097
Greenville 09:07:29 -63.4 Dark Down 51.9 100.2 Up 08:52:29 - 09:22:29 -4127
Gimple 09:07:29 -63.4 Dark Down 51.9 100.3 Up 08:52:29 - 09:22:29 -4127
Quincy 09:07:30 -63.6 Dark Down 51.9 99.9 Up 08:52:30 - 09:22:30 -4149
Portola 09:07:27 -63.4 Dark Down 52.3 100.2 Up 08:52:27 - 09:22:27 -4163
Reno 09:07:24 -63.2 Dark Down 52.8 100.3 Up 08:52:24 - 09:22:24 -4193
Carson City 09:07:24 -63.5 Dark Down 52.9 99.9 Up 08:52:24 - 09:22:24 -4233
Yerington 09:07:20 -63.2 Dark Down 53.4 100.1 Up 08:52:20 - 09:22:20 -4254
Gardnerville 09:07:24 -63.6 Dark Down 53.0 99.6 Up 08:52:24 - 09:22:24 -4260
Hawthorne 09:07:18 -63.2 Dark Down 53.9 99.9 Up 08:52:18 - 09:22:18 -4306
Tonopah 09:07:10 -62.6 Dark Down 55.0 100.4 Up 08:52:10 - 09:22:10 -4356
Lee Vining 09:07:23 -63.9 Dark Down 53.6 98.8 Up 08:52:23 - 09:22:23 -4368
Bishop 09:07:17 -63.8 Dark Down 54.3 98.5 Up 08:52:17 - 09:22:17 -4434
Beatty 09:07:08 -63.0 Dark Down 55.6 99.1 Up 08:52:08 - 09:22:08 -4483
Indian Springs 09:06:59 -62.5 Dark Down 56.5 99.5 Up 08:51:59 - 09:21:59 -4517
Lone Pine 09:07:14 -64.0 Dark Down 54.6 97.7 Up 08:52:14 - 09:22:14 -4518
Henderson 09:06:54 -62.3 Dark Down 57.1 99.2 Up 08:51:54 - 09:21:54 -4574
Searchlight/Boulder City 09:06:54 -62.5 Dark Down 57.2 98.4 Up 08:51:54 - 09:21:54 -4637
Patrick 09:06:48 -61.8 Dark Down 58.1 99.1 Up 08:51:48 - 09:21:48 -4640
CPSLO 09:07:32 -66.4 Dark Down 52.7 94.2 Up 08:52:32 - 09:22:32 -4660
Kingman/Dolan Springs 09:06:48 -62.0 Dark Down 58.0 98.6 Up 08:51:48 - 09:21:48 -4665
Laughlin/Bullhead City 09:06:52 -62.4 Dark Down 57.5 98.2 Up 08:51:52 - 09:21:52 -4669
DCO 09:06:44 -61.4 Dark Down 58.7 99.1 Up 08:51:44 - 09:21:44 -4670
Mohave Valley 09:06:52 -62.5 Dark Down 57.6 97.7 Up 08:51:52 - 09:21:52 -4699
Lake Havasu City 09:06:50 -62.5 Dark Down 57.8 97.3 Up 08:51:50 - 09:21:50 -4743
Parker 09:06:52 -62.7 Dark Down 57.9 96.8 Up 08:51:52 - 09:21:52 -4782
Wildwood 09:07:18 -65.8 Dark Down 54.5 93.9 Up 08:52:18 - 09:22:18 -4796
Idyllwild 09:07:07 -64.6 Dark Down 56.0 94.5 Up 08:52:07 - 09:22:07 -4834
Blythe 09:06:52 -63.1 Dark Down 57.7 95.7 Up 08:51:52 - 09:21:52 -4841
Calipatria 09:07:01 -64.0 Dark Down 57.0 94.4 Up 08:52:01 - 09:22:01 -4898
Yuma 09:06:55 -63.5 Dark Down 57.8 94.2 Up 08:51:55 - 09:21:55 -4944

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, (2025/11/19 09:02UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1  2.97 115
77Kap Gem      07:44:26.8 +24:23:52  3.6  0.86 114
PPM 098001     07:49:18.7 +24:29:19  7.6  0.82 113
PPM 097959     07:47:34.8 +25:28:08  9.3  0.44 113
PPM 097951     07:47:09.7 +24:52:07 10.3  0.22 113
02VD130        07:46:47.4 +25:04:16 13.5       114
Positions are for J2000

Event circumstances last updated at 2019/03/23 00:14:04 UT

Marc W. Buie, Southwest Research Institute

RECON