RECON: TNO occultation with 04VV130

Event between 04VV130 and star GA1280:02395392 with event index number of 2567472

Geocentric closest approach at 2023/10/28 08:55:36 UTC

J2000 position of star is 05:31:21.3 +38:19:34
Equinox of date position of star is 05:32:55.1 +38:20:29
Stellar brightness G=13.4, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 57 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=22.7

[RECON map]
TNO is 32.1 AU from the Sun and 31.5 AU from the Earth.
The TNO is moving 16.2 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 260 seconds.
The 1-sigma cross-track error in the shadow position is 2861 km.
The sky-plane scale is 22828.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.5
Diameter=194.1 km assuming a 5% albedo -- 12.0 sec chord
Diameter=79.2 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 04VV130, (2023/10/28 08:56UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:17.4 +16:33:19  0.8 24.98  42
34Bet Aur      06:01:16.6 +44:56:50  1.9  8.45  64
21Sig Aur      05:26:16.5 +37:24:19  6.4  1.62  56
PPM 070575     05:37:11.9 +38:02:00  8.0  0.88  58
PPM 070493     05:33:05.0 +38:20:08  8.6  0.02  57
04VV130        05:32:59.5 +38:20:32 13.4        57
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 3.5 sigma about the mid-time.
The median site spacing is 31.7 km RECON observability=1.0 and success probability=20.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:57:29 -43.1 Dark Up 71.4 130.7 Up 08:42:29 - 09:12:29 -129
Kamloops 08:58:24 -49.6 Dark Up 64.2 106.1 Up 08:43:24 - 09:13:24 -430
Kelowna 08:58:21 -50.0 Dark Up 65.0 105.5 Up 08:43:21 - 09:13:21 -515
Peachland 08:58:22 -50.2 Dark Up 64.9 104.9 Up 08:43:22 - 09:13:22 -529
Summerland 08:58:22 -50.3 Dark Up 65.0 104.7 Up 08:43:22 - 09:13:22 -545
Penticton 08:58:21 -50.3 Dark Up 65.0 104.7 Up 08:43:21 - 09:13:21 -552
Oliver 08:58:21 -50.6 Dark Up 65.1 104.0 Up 08:43:21 - 09:13:21 -591
Anarchist Mountain Observatory 08:58:20 -50.7 Dark Up 65.3 103.8 Up 08:43:20 - 09:13:20 -609
Tonasket 08:58:20 -51.0 Dark Up 65.3 103.1 Up 08:43:20 - 09:13:20 -643
Victoria 08:58:37 -52.4 Dark Up 62.8 98.8 Up 08:43:37 - 09:13:37 -678
Okanogan 08:58:21 -51.3 Dark Up 65.3 102.2 Up 08:43:21 - 09:13:21 -681
Brewster 08:58:22 -51.6 Dark Up 65.2 101.4 Up 08:43:22 - 09:13:22 -712
Manson/Chelan 08:58:23 -51.9 Dark Up 65.0 100.6 Up 08:43:23 - 09:13:23 -737
Wenatchee 08:58:24 -52.4 Dark Up 65.0 99.5 Up 08:43:24 - 09:13:24 -791
Ellensburg 08:58:25 -52.8 Dark Up 64.9 98.4 Up 08:43:25 - 09:13:25 -838
Yakima 08:58:24 -53.2 Dark Up 65.0 97.5 Up 08:43:24 - 09:13:24 -883
Toppenish/White Swan 08:58:23 -53.3 Dark Up 65.1 97.2 Up 08:43:23 - 09:13:23 -906
PNWRO 08:58:18 -53.1 Dark Up 66.2 97.7 Up 08:43:18 - 09:13:18 -939
Goldendale 08:58:25 -54.0 Dark Up 64.9 95.6 Up 08:43:25 - 09:13:25 -969
The Dalles 08:58:27 -54.3 Dark Up 64.6 94.9 Up 08:43:27 - 09:13:27 -996
Maupin 08:58:27 -54.6 Dark Up 64.7 94.1 Up 08:43:27 - 09:13:27 -1042
Sisters 08:58:28 -55.5 Dark Up 64.4 91.8 Up 08:43:28 - 09:13:28 -1142
Bend 08:58:27 -55.6 Dark Up 64.6 91.5 Up 08:43:27 - 09:13:27 -1167
Oregon Observatory 08:58:28 -55.8 Dark Up 64.5 91.1 Up 08:43:28 - 09:13:28 -1187
North Lake 08:58:25 -56.2 Dark Up 64.9 90.1 Up 08:43:25 - 09:13:25 -1256
Chiloquin 08:58:29 -57.1 Dark Up 64.2 88.0 Up 08:43:29 - 09:13:29 -1334
Lakeview 08:58:21 -56.9 Dark Up 65.3 88.2 Up 08:43:21 - 09:13:21 -1370
Klamath Falls 08:58:28 -57.4 Dark Up 64.3 87.4 Up 08:43:28 - 09:13:28 -1372
Dunrhomin 08:57:09 -50.2 Dark Up 76.5 92.7 Up 08:42:09 - 09:12:09 -1390
CU-SBO 08:57:09 -50.4 Dark Up 76.5 91.5 Up 08:42:09 - 09:12:09 -1419
Cedarville 08:58:21 -57.3 Dark Up 65.4 86.8 Up 08:43:21 - 09:13:21 -1442
Fall River/Burney 08:58:26 -58.2 Dark Up 64.5 85.1 Up 08:43:26 - 09:13:26 -1501
Susanville 08:58:22 -58.4 Dark Up 65.0 84.2 Up 08:43:22 - 09:13:22 -1568
Gimple 08:58:24 -58.8 Dark Up 64.8 83.5 Up 08:43:24 - 09:13:24 -1599
Greenville 08:58:24 -58.8 Dark Up 64.7 83.5 Up 08:43:24 - 09:13:24 -1600
Quincy 08:58:23 -59.0 Dark Up 64.7 83.0 Up 08:43:23 - 09:13:23 -1622
Portola 08:58:21 -58.9 Dark Up 65.0 83.0 Up 08:43:21 - 09:13:21 -1634
Reno 08:58:18 -58.8 Dark Up 65.5 82.7 Up 08:43:18 - 09:13:18 -1659
Carson City 08:58:17 -59.0 Dark Up 65.5 81.9 Up 08:43:17 - 09:13:17 -1699
Yerington 08:58:15 -58.9 Dark Up 65.9 81.7 Up 08:43:15 - 09:13:15 -1716
Gardnerville 08:58:17 -59.2 Dark Up 65.5 81.4 Up 08:43:17 - 09:13:17 -1725
Hawthorne 08:58:11 -59.0 Dark Up 66.2 80.9 Up 08:43:11 - 09:13:11 -1764
Tonopah 08:58:04 -58.6 Dark Up 67.2 80.2 Up 08:43:04 - 09:13:04 -1804
Lee Vining 08:58:13 -59.7 Dark Up 65.8 79.5 Up 08:43:13 - 09:13:13 -1829
Bishop 08:58:09 -59.8 Dark Up 66.2 78.3 Up 08:43:09 - 09:13:09 -1890
Beatty 08:58:01 -59.2 Dark Up 67.4 77.6 Up 08:43:01 - 09:13:01 -1927
Indian Springs 08:57:55 -58.8 Dark Up 68.1 77.0 Up 08:42:55 - 09:12:55 -1952
Henderson 08:57:51 -58.8 Dark Up 68.5 75.8 Up 08:42:51 - 09:12:51 -2003
Patrick 08:57:45 -58.5 Dark Up 69.2 74.3 Up 08:42:45 - 09:12:45 -2058
Kingman/Dolan Springs 08:57:46 -58.8 Dark Up 69.0 73.7 Up 08:42:46 - 09:12:46 -2084
Laughlin/Bullhead City 08:57:48 -59.1 Dark Up 68.6 73.7 Up 08:42:48 - 09:12:48 -2093
Mohave Valley 08:57:48 -59.3 Dark Up 68.5 73.0 Up 08:42:48 - 09:12:48 -2122
Lake Havasu City 08:57:46 -59.4 Dark Up 68.6 72.0 Up 08:42:46 - 09:12:46 -2163
Parker 08:57:46 -59.6 Dark Up 68.5 71.2 Up 08:42:46 - 09:12:46 -2200
George/Scottsdale 08:57:33 -58.2 Dark Up 70.2 69.7 Up 08:42:33 - 09:12:33 -2213
Wildwood 08:58:08 -62.2 Dark Up 65.2 71.3 Up 08:43:08 - 09:13:08 -2248
Idyllwild 08:57:57 -61.4 Dark Up 66.5 70.5 Up 08:42:57 - 09:12:57 -2271
Calipatria 08:57:51 -61.0 Dark Up 67.2 69.0 Up 08:42:51 - 09:12:51 -2325
Yuma 08:57:45 -60.7 Dark Up 67.7 67.8 Up 08:42:45 - 09:12:45 -2361

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, (2023/10/28 08:56UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 24.98  42
34Bet Aur      05:59:31.6 +44:56:51  1.9  8.45  64
21Sig Aur      05:24:39.2 +37:23:07  6.4  1.62  56
PPM 070575     05:35:33.9 +38:01:11  8.0  0.88  58
PPM 070493     05:31:26.7 +38:19:10  8.6  0.02  57
04VV130        05:31:21.3 +38:19:34 13.4        57
Positions are for J2000

Event circumstances last updated at 2022/09/27 03:26:58 UT

Marc W. Buie, Southwest Research Institute

RECON