RECON: TNO occultation with 04VG131

Event between 04VG131 and star GA1200:01376383 with event index number of 2734652

Geocentric closest approach at 2022/11/17 06:04:04 UTC

J2000 position of star is 05:09:03.7 +31:12:43
Equinox of date position of star is 05:10:28.4 +31:14:19
Stellar brightness G=0.0, use SENSEUP=2 with the MallinCam and and exposure time of 125 milli-seconds with the QHY174 camera.
Star is 73 degrees from the moon. Moon is 43% illuminated.
TNO apparent brightness V=24.1

[RECON map]
TNO is 36.2 AU from the Sun and 35.3 AU from the Earth.
The TNO is moving 22.2 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 323 seconds.
The 1-sigma cross-track error in the shadow position is 2766 km.
The sky-plane scale is 25619.3 km/arcsec.

The TNO has an absolute magnitude Hv=8.5
Diameter=121.9 km assuming a 5% albedo -- 5.5 sec chord
Diameter=49.8 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 04VG131, (2022/11/17 06:04UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:14.2 +16:33:12  0.8 16.53  83
3Iot Aur       04:58:29.2 +33:12:01  2.7  3.21  75
14 Aur         05:16:53.9 +32:42:43  5.2  2.00  71
PPM 069997     05:12:03.2 +30:49:27  8.1  0.53  73
PPM 069956     05:09:47.3 +31:11:44  8.9  0.17  73
04VG131        05:10:32.1 +31:14:23  0.0        73
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 2.8 sigma about the mid-time.
The median site spacing is 25.9 km RECON observability=1.0 and success probability=13.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 06:06:29 -52.6 Dark Down 48.7 98.7 Up 05:51:29 - 06:21:29 -2503
Kelowna 06:06:29 -53.6 Dark Down 49.4 98.5 Up 05:51:29 - 06:21:29 -2601
Peachland 06:06:30 -53.6 Dark Down 49.2 98.1 Up 05:51:30 - 06:21:30 -2604
Victoria 06:06:41 -52.8 Dark Down 47.0 93.8 Up 05:51:41 - 06:21:41 -2618
Summerland 06:06:30 -53.7 Dark Down 49.3 98.0 Up 05:51:30 - 06:21:30 -2620
Penticton 06:06:30 -53.8 Dark Down 49.4 98.1 Up 05:51:30 - 06:21:30 -2629
Oliver 06:06:31 -54.1 Dark Down 49.4 97.7 Up 05:51:31 - 06:21:31 -2662
Anarchist Mountain Observatory 06:06:31 -54.3 Dark Down 49.6 97.6 Up 05:51:31 - 06:21:31 -2683
Sleaford 06:05:52 -55.9 Dark Down 56.8 115.0 Up 05:50:52 - 06:20:52 -2690
Tonasket 06:06:32 -54.5 Dark Down 49.6 97.2 Up 05:51:32 - 06:21:32 -2711
Okanogan 06:06:33 -54.7 Dark Down 49.5 96.7 Up 05:51:33 - 06:21:33 -2738
Brewster 06:06:34 -54.8 Dark Down 49.4 96.2 Up 05:51:34 - 06:21:34 -2758
Manson/Chelan 06:06:36 -54.8 Dark Down 49.2 95.7 Up 05:51:36 - 06:21:36 -2768
Wenatchee 06:06:37 -55.1 Dark Down 49.1 95.0 Up 05:51:37 - 06:21:37 -2808
Ellensburg 06:06:39 -55.3 Dark Down 49.0 94.4 Up 05:51:39 - 06:21:39 -2841
Yakima 06:06:40 -55.6 Dark Down 49.0 93.9 Up 05:51:40 - 06:21:40 -2879
Toppenish/White Swan 06:06:40 -55.8 Dark Down 49.2 93.8 Up 05:51:40 - 06:21:40 -2904
Goldendale 06:06:42 -56.0 Dark Down 48.9 92.8 Up 05:51:42 - 06:21:42 -2945
Pasco 06:06:37 -56.5 Dark Down 50.1 94.6 Up 05:51:37 - 06:21:37 -2951
The Dalles 06:06:44 -55.9 Dark Down 48.7 92.3 Up 05:51:44 - 06:21:44 -2956
PNWRO 06:06:37 -56.8 Dark Down 50.2 94.5 Up 05:51:37 - 06:21:37 -2981
Maupin 06:06:45 -56.3 Dark Down 48.8 91.9 Up 05:51:45 - 06:21:45 -2998
Sisters 06:06:48 -56.6 Dark Down 48.4 90.5 Up 05:51:48 - 06:21:48 -3068
Redmond 06:06:47 -56.8 Dark Down 48.7 90.8 Up 05:51:47 - 06:21:47 -3082
Bend 06:06:48 -56.9 Dark Down 48.6 90.4 Up 05:51:48 - 06:21:48 -3099
Oregon Observatory 06:06:49 -57.0 Dark Down 48.5 90.2 Up 05:51:49 - 06:21:49 -3111
La Pine/Gilchrist 06:06:49 -57.1 Dark Down 48.5 89.9 Up 05:51:49 - 06:21:49 -3129
North Lake 06:06:49 -57.7 Dark Down 48.9 89.8 Up 05:51:49 - 06:21:49 -3190
Chiloquin 06:06:53 -57.6 Dark Down 48.2 88.4 Up 05:51:53 - 06:21:53 -3226
Paisley 06:06:49 -58.2 Dark Down 49.2 89.4 Up 05:51:49 - 06:21:49 -3254
Klamath Falls 06:06:54 -57.8 Dark Down 48.3 88.1 Up 05:51:54 - 06:21:54 -3262
Lakeview 06:06:50 -58.7 Dark Down 49.3 89.0 Up 05:51:50 - 06:21:50 -3309
Cedarville 06:06:51 -59.2 Dark Down 49.5 88.3 Up 05:51:51 - 06:21:51 -3379
Fall River/Burney 06:06:56 -58.8 Dark Down 48.5 87.0 Up 05:51:56 - 06:21:56 -3389
Susanville 06:06:55 -59.6 Dark Down 49.1 86.7 Up 05:51:55 - 06:21:55 -3474
Greenville 06:06:56 -59.6 Dark Down 48.8 86.2 Up 05:51:56 - 06:21:56 -3492
Gimple 06:06:56 -59.7 Dark Down 48.9 86.3 Up 05:51:56 - 06:21:56 -3495
Quincy 06:06:57 -59.7 Dark Down 48.8 86.0 Up 05:51:57 - 06:21:57 -3512
Portola 06:06:56 -60.1 Dark Down 49.2 86.1 Up 05:51:56 - 06:21:56 -3539
Reno 06:06:54 -60.6 Dark Down 49.6 86.2 Up 05:51:54 - 06:21:54 -3586
Carson City 06:06:56 -60.9 Dark Down 49.6 85.8 Up 05:51:56 - 06:21:56 -3623
Gardnerville 06:06:56 -61.1 Dark Down 49.7 85.5 Up 05:51:56 - 06:21:56 -3649
Yerington 06:06:54 -61.4 Dark Down 50.1 85.9 Up 05:51:54 - 06:21:54 -3662
Hawthorne 06:06:54 -62.0 Dark Down 50.5 85.7 Up 05:51:54 - 06:21:54 -3725
Lee Vining 06:06:56 -62.0 Dark Down 50.1 84.7 Up 05:51:56 - 06:21:56 -3766
Tonopah 06:06:51 -63.2 Dark Down 51.6 85.9 Up 05:51:51 - 06:21:51 -3816
Bishop 06:06:56 -62.9 Dark Down 50.6 84.4 Up 05:51:56 - 06:21:56 -3850
Dunrhomin 06:06:12 -67.1 Dark Down 60.7 97.0 Up 05:51:12 - 06:21:12 -3906
Beatty 06:06:52 -64.2 Dark Down 51.8 84.6 Up 05:51:52 - 06:21:52 -3947
CPSLO 06:07:05 -62.5 Dark Down 48.5 80.9 Up 05:52:05 - 06:22:05 -3984
Indian Springs 06:06:49 -65.0 Dark Down 52.6 84.8 Up 05:51:49 - 06:21:49 -4013
Henderson 06:06:49 -65.8 Dark Down 53.2 84.4 Up 05:51:49 - 06:21:49 -4089
Wildwood 06:07:03 -64.5 Dark Down 50.0 80.4 Up 05:52:03 - 06:22:03 -4175
Patrick 06:06:47 -66.9 Dark Down 54.0 84.1 Up 05:51:47 - 06:21:47 -4187
Laughlin/Bullhead City 06:06:49 -66.6 Dark Down 53.4 83.4 Up 05:51:49 - 06:21:49 -4191
Kingman/Dolan Springs 06:06:47 -66.9 Dark Down 53.8 83.7 Up 05:51:47 - 06:21:47 -4204
Mohave Valley 06:06:49 -66.8 Dark Down 53.4 83.1 Up 05:51:49 - 06:21:49 -4220
Lake Havasu City 06:06:49 -67.2 Dark Down 53.5 82.6 Up 05:51:49 - 06:21:49 -4269
Idyllwild 06:06:58 -66.0 Dark Down 51.5 80.7 Up 05:51:58 - 06:21:58 -4273
Parker 06:06:49 -67.4 Dark Down 53.5 82.2 Up 05:51:49 - 06:21:49 -4306
Blythe 06:06:52 -67.6 Dark Down 53.2 81.4 Up 05:51:52 - 06:21:52 -4351
Calipatria 06:06:56 -67.2 Dark Down 52.3 80.4 Up 05:51:56 - 06:21:56 -4373
George/Scottsdale 06:06:43 -69.3 Dark Down 55.4 82.6 Up 05:51:43 - 06:21:43 -4422
Yuma 06:06:53 -68.1 Dark Down 53.0 80.1 Up 05:51:53 - 06:21:53 -4446

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 04VG131, (2022/11/17 06:04UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 16.53  83
3Iot Aur       04:56:59.6 +33:09:58  2.7  3.21  75
14 Aur         05:15:24.3 +32:41:15  5.2  2.00  71
PPM 069997     05:10:35.0 +30:47:51  8.1  0.53  73
PPM 069956     05:08:18.9 +31:10:03  8.9  0.17  73
04VG131        05:09:03.7 +31:12:43  0.0        73
Positions are for J2000

Event circumstances last updated at 2021/12/02 01:06:33 UT

Marc W. Buie, Southwest Research Institute

RECON