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 08:55:20 UTC

J2000 position of star is 05:31:21.3 +38:19:34
Equinox of date position of star is 05:32:56.1 +38:20:30
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.
Apparent brightness V=22.7

[RECON map]
Object is 32.1 AU from the Sun and 31.5 AU from the Earth.
Apparent velocity is 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 181 seconds.
The 1-sigma cross-track error in the shadow position is 2156 km.
The sky-plane scale is 22828.3 km/arcsec.

The object has an absolute magnitude Hv=7.5
Diameter=194.1 km assuming a 5% albedo -- 11.9 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 5.0 sigma about the mid-time.
The median site spacing is 36.4 km RECON observability=1.0 and success probability=22.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:57:12 -43.1 Dark Up 71.4 130.6 Up 08:42:12 - 09:12:12 -1068
Kamloops 08:58:08 -49.6 Dark Up 64.2 106.1 Up 08:43:08 - 09:13:08 -1369
Kelowna 08:58:04 -50.0 Dark Up 65.0 105.4 Up 08:43:04 - 09:13:04 -1454
Peachland 08:58:06 -50.2 Dark Up 64.8 104.9 Up 08:43:06 - 09:13:06 -1468
Summerland 08:58:05 -50.3 Dark Up 64.9 104.7 Up 08:43:05 - 09:13:05 -1484
Penticton 08:58:05 -50.3 Dark Up 65.0 104.6 Up 08:43:05 - 09:13:05 -1491
Oliver 08:58:04 -50.6 Dark Up 65.1 103.9 Up 08:43:04 - 09:13:04 -1530
Anarchist Mountain Observatory 08:58:04 -50.7 Dark Up 65.2 103.8 Up 08:43:04 - 09:13:04 -1548
Victoria 08:58:20 -52.4 Dark Up 62.8 98.7 Up 08:43:20 - 09:13:20 -1617
Okanogan 08:58:04 -51.4 Dark Up 65.2 102.2 Up 08:43:04 - 09:13:04 -1620
Brewster 08:58:05 -51.7 Dark Up 65.2 101.4 Up 08:43:05 - 09:13:05 -1651
Manson/Chelan 08:58:07 -52.0 Dark Up 65.0 100.6 Up 08:43:07 - 09:13:07 -1676
Wenatchee 08:58:07 -52.4 Dark Up 64.9 99.4 Up 08:43:07 - 09:13:07 -1730
Ellensburg 08:58:08 -52.9 Dark Up 64.9 98.3 Up 08:43:08 - 09:13:08 -1777
Yakima 08:58:08 -53.2 Dark Up 64.9 97.4 Up 08:43:08 - 09:13:08 -1822
Toppenish/White Swan 08:58:07 -53.3 Dark Up 65.0 97.1 Up 08:43:07 - 09:13:07 -1845
PNWRO 08:58:01 -53.1 Dark Up 66.1 97.7 Up 08:43:01 - 09:13:01 -1878
The Dalles 08:58:11 -54.3 Dark Up 64.6 94.8 Up 08:43:11 - 09:13:11 -1935
Maupin 08:58:10 -54.6 Dark Up 64.7 94.0 Up 08:43:10 - 09:13:10 -1981
Sisters 08:58:11 -55.6 Dark Up 64.4 91.8 Up 08:43:11 - 09:13:11 -2081
Bend 08:58:10 -55.7 Dark Up 64.6 91.5 Up 08:43:10 - 09:13:10 -2106
Oregon Observatory 08:58:10 -55.9 Dark Up 64.5 91.0 Up 08:43:10 - 09:13:10 -2126
Chiloquin 08:58:13 -57.1 Dark Up 64.2 88.0 Up 08:43:13 - 09:13:13 -2273
Klamath Falls 08:58:12 -57.4 Dark Up 64.2 87.3 Up 08:43:12 - 09:13:12 -2311
Dunrhomin 08:56:46 -50.3 Dark Up 76.5 92.6 Up 08:41:46 - 09:11:46 -2332
Nikitin 08:56:46 -50.4 Dark Up 76.4 91.8 Up 08:41:46 - 09:11:46 -2352
CU-SBO 08:56:46 -50.5 Dark Up 76.4 91.5 Up 08:41:46 - 09:11:46 -2361
Cedarville 08:58:04 -57.3 Dark Up 65.4 86.8 Up 08:43:04 - 09:13:04 -2381
Fall River/Burney 08:58:10 -58.3 Dark Up 64.4 85.1 Up 08:43:10 - 09:13:10 -2440
Gimple 08:58:07 -58.8 Dark Up 64.7 83.5 Up 08:43:07 - 09:13:07 -2538
Greenville 08:58:07 -58.8 Dark Up 64.7 83.4 Up 08:43:07 - 09:13:07 -2539
Quincy 08:58:07 -59.0 Dark Up 64.6 83.0 Up 08:43:07 - 09:13:07 -2561
Portola 08:58:04 -58.9 Dark Up 65.0 82.9 Up 08:43:04 - 09:13:04 -2573
Reno 08:58:02 -58.8 Dark Up 65.4 82.6 Up 08:43:02 - 09:13:02 -2598
Carson City 08:58:02 -59.1 Dark Up 65.4 81.9 Up 08:43:02 - 09:13:02 -2638
Yerington 08:57:58 -58.9 Dark Up 65.9 81.7 Up 08:42:58 - 09:12:58 -2655
Gardnerville 08:58:01 -59.2 Dark Up 65.4 81.4 Up 08:43:01 - 09:13:01 -2665
Hawthorne 08:57:55 -59.0 Dark Up 66.2 80.8 Up 08:42:55 - 09:12:55 -2703
Lee Vining 08:57:58 -59.7 Dark Up 65.7 79.4 Up 08:42:58 - 09:12:58 -2769
Bishop 08:57:53 -59.8 Dark Up 66.2 78.3 Up 08:42:53 - 09:12:53 -2829
Beatty 08:57:45 -59.3 Dark Up 67.3 77.6 Up 08:42:45 - 09:12:45 -2866
Patrick 08:57:29 -58.6 Dark Up 69.2 74.3 Up 08:42:29 - 09:12:29 -2997
Laughlin/Bullhead City 08:57:32 -59.2 Dark Up 68.5 73.7 Up 08:42:32 - 09:12:32 -3032
Lake Havasu City 08:57:29 -59.4 Dark Up 68.5 72.0 Up 08:42:29 - 09:12:29 -3102
George/Scottsdale 08:57:16 -58.3 Dark Up 70.2 69.7 Up 08:42:16 - 09:12:16 -3153
Wildwood 08:57:50 -62.3 Dark Up 65.1 71.3 Up 08:42:50 - 09:12:50 -3188
Idyllwild 08:57:41 -61.4 Dark Up 66.5 70.5 Up 08:42:41 - 09:12:41 -3211
Calipatria 08:57:34 -61.0 Dark Up 67.2 69.0 Up 08:42:34 - 09:12:34 -3264
Yuma 08:57:29 -60.7 Dark Up 67.7 67.9 Up 08:42:29 - 09:12:29 -3300

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 2022/12/24 03:46:29 UT

Marc W. Buie, Southwest Research Institute

RECON