RECON: TNO occultation with 530055

Event between (530055) 10VW224 and star GA1080:00954277 with event index number of 1598569

Geocentric closest approach at 2023/10/29 09:57:02 UTC

J2000 position of star is 05:20:29.0 +19:38:14
Equinox of date position of star is 05:21:38.2 +19:39:20
Stellar brightness G=15.3, use SENSEUP=128
Star is 38 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=22.5

[RECON map]
TNO is 49.7 AU from the Sun and 49.0 AU from the Earth.
The TNO is moving 17.5 km/sec on the sky relative to the star, or, 1.8 arcsec/hr.
The 1-sigma error in the time of the event is 479 seconds.
The 1-sigma cross-track error in the shadow position is 3538 km.
The sky-plane scale is 35559.4 km/arcsec.

The TNO has an absolute magnitude Hv=5.5
Diameter=478.6 km assuming a 5% albedo -- 27.3 sec chord
Diameter=195.4 km assuming a 30% albedo -- 11.2 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 530055, (2023/10/29 09:57UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:17.4 +16:33:20  0.8 11.04  28
Alnath         05:27:48.0 +28:37:32  1.6  9.07  40
PPM 120839     05:21:42.7 +19:36:02  6.5  0.07  38
530055         05:21:53.5 +19:39:34 15.3        38
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 23.1 km RECON observability=1.0 and success probability=3.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 09:57:37 -44.1 Dark Up 58.1 157.1 Up 09:42:37 - 10:12:37 9212
Summerland 09:57:39 -44.5 Dark Up 58.3 156.4 Up 09:42:39 - 10:12:39 9188
Penticton 09:57:38 -44.5 Dark Up 58.4 156.6 Up 09:42:38 - 10:12:38 9180
Okanagan Falls 09:57:38 -44.6 Dark Up 58.6 156.4 Up 09:42:38 - 10:12:38 9163
Oliver 09:57:38 -44.7 Dark Up 58.7 156.3 Up 09:42:38 - 10:12:38 9147
Anarchist Mountain Observatory 09:57:39 -44.7 Dark Up 58.9 156.6 Up 09:42:39 - 10:12:39 9129
Oroville 09:57:39 -44.8 Dark Up 59.0 156.4 Up 09:42:39 - 10:12:39 9123
Tonasket 09:57:39 -44.9 Dark Up 59.2 156.2 Up 09:42:39 - 10:12:39 9101
Okanogan 09:57:41 -45.2 Dark Up 59.5 155.7 Up 09:42:41 - 10:12:41 9071
Brewster 09:57:42 -45.5 Dark Up 59.7 155.2 Up 09:42:42 - 10:12:42 9048
Manson/Chelan 09:57:43 -45.8 Dark Up 59.7 154.4 Up 09:42:43 - 10:12:43 9033
Wenatchee 09:57:45 -46.2 Dark Up 60.1 153.7 Up 09:42:45 - 10:12:45 8991
Ellensburg 09:57:46 -46.6 Dark Up 60.4 153.0 Up 09:42:46 - 10:12:46 8954
Yakima 09:57:47 -46.9 Dark Up 60.8 152.7 Up 09:42:47 - 10:12:47 8916
Toppenish/White Swan 09:57:47 -46.9 Dark Up 61.0 152.8 Up 09:42:47 - 10:12:47 8892
Pasco 09:57:43 -46.3 Dark Up 61.5 155.0 Up 09:42:43 - 10:12:43 8864
Goldendale 09:57:49 -47.5 Dark Up 61.4 151.6 Up 09:42:49 - 10:12:49 8845
PNWRO 09:57:41 -46.3 Dark Up 61.8 155.3 Up 09:42:41 - 10:12:41 8836
George/Umatilla 09:57:43 -46.6 Dark Up 61.8 154.4 Up 09:42:43 - 10:12:43 8834
The Dalles 09:57:51 -47.8 Dark Up 61.5 150.7 Up 09:42:51 - 10:12:51 8829
Maupin 09:57:52 -48.0 Dark Up 61.9 150.5 Up 09:42:52 - 10:12:52 8787
Madras/Culver 09:57:52 -48.4 Dark Up 62.3 149.9 Up 09:42:52 - 10:12:52 8734
Sisters 09:57:55 -48.8 Dark Up 62.5 148.8 Up 09:42:55 - 10:12:55 8708
Redmond 09:57:53 -48.6 Dark Up 62.6 149.5 Up 09:42:53 - 10:12:53 8700
Bend 09:57:55 -48.8 Dark Up 62.8 149.0 Up 09:42:55 - 10:12:55 8681
Oregon Observatory 09:57:56 -49.0 Dark Up 62.9 148.6 Up 09:42:56 - 10:12:56 8666
La Pine/Gilchrist 09:57:56 -49.2 Dark Up 63.0 148.3 Up 09:42:56 - 10:12:56 8647
North Lake 09:57:55 -49.1 Dark Up 63.6 149.0 Up 09:42:55 - 10:12:55 8595
Chiloquin 09:58:00 -50.0 Dark Up 63.8 146.5 Up 09:43:00 - 10:13:00 8543
Paisley 09:57:53 -49.2 Dark Up 64.2 149.1 Up 09:42:53 - 10:12:53 8536
Klamath Falls 09:57:59 -50.2 Dark Up 64.1 146.2 Up 09:42:59 - 10:12:59 8508
Lakeview 09:57:53 -49.4 Dark Up 64.7 149.0 Up 09:42:53 - 10:12:53 8482
Tulelake 09:57:58 -50.2 Dark Up 64.5 146.5 Up 09:42:58 - 10:12:58 8477
Cedarville 09:57:53 -49.6 Dark Up 65.3 148.6 Up 09:42:53 - 10:12:53 8414
Fall River/Burney 09:58:00 -50.7 Dark Up 65.3 145.6 Up 09:43:00 - 10:13:00 8385
Susanville 09:57:57 -50.6 Dark Up 66.1 146.3 Up 09:42:57 - 10:12:57 8310
Greenville 09:58:00 -50.9 Dark Up 66.2 145.4 Up 09:43:00 - 10:13:00 8287
Gimple 09:57:59 -50.8 Dark Up 66.2 145.5 Up 09:42:59 - 10:12:59 8285
Quincy 09:58:00 -51.0 Dark Up 66.4 145.1 Up 09:43:00 - 10:13:00 8266
Portola 09:57:57 -50.8 Dark Up 66.7 145.9 Up 09:42:57 - 10:12:57 8246
Reno 09:57:55 -50.5 Dark Up 67.2 147.0 Up 09:42:55 - 10:12:55 8209
Carson City 09:57:55 -50.7 Dark Up 67.5 146.5 Up 09:42:55 - 10:12:55 8172
Gardnerville 09:57:56 -50.8 Dark Up 67.7 146.3 Up 09:42:56 - 10:12:56 8146
Yerington 09:57:53 -50.4 Dark Up 67.9 147.7 Up 09:42:53 - 10:12:53 8143
Hawthorne 09:57:51 -50.2 Dark Up 68.5 148.2 Up 09:42:51 - 10:12:51 8087
SwRI 09:56:45 -40.4 Dark Up 69.6 183.5 Up 09:41:45 - 10:11:45 8083
Lee Vining 09:57:54 -50.8 Dark Up 68.8 146.4 Up 09:42:54 - 10:12:54 8036
Tonopah 09:57:43 -49.5 Dark Up 69.5 150.9 Up 09:42:43 - 10:12:43 8018
Bishop 09:57:52 -50.6 Dark Up 69.6 147.2 Up 09:42:52 - 10:12:52 7964
Beatty 09:57:44 -49.7 Dark Up 70.7 150.5 Up 09:42:44 - 10:12:44 7892
Lone Pine 09:57:51 -50.7 Dark Up 70.4 146.8 Up 09:42:51 - 10:12:51 7880
Indian Springs 09:57:39 -49.1 Dark Up 71.4 152.9 Up 09:42:39 - 10:12:39 7843
CPSLO 09:58:05 -53.2 Dark Up 70.2 138.6 Up 09:43:05 - 10:13:05 7786
Henderson 09:57:37 -48.8 Dark Up 72.1 154.1 Up 09:42:37 - 10:12:37 7777
Searchlight/Boulder City 09:57:38 -49.0 Dark Up 72.6 153.4 Up 09:42:38 - 10:12:38 7716
Patrick 09:57:33 -48.2 Dark Up 73.0 156.4 Up 09:42:33 - 10:12:33 7696
Laughlin/Bullhead City 09:57:35 -48.8 Dark Up 73.0 154.0 Up 09:42:35 - 10:12:35 7680
Kingman/Dolan Springs 09:57:32 -48.4 Dark Up 73.2 155.6 Up 09:42:32 - 10:12:32 7676
Mohave Valley 09:57:36 -48.9 Dark Up 73.3 153.6 Up 09:42:36 - 10:12:36 7651
Wildwood 09:57:57 -52.2 Dark Up 72.2 141.2 Up 09:42:57 - 10:12:57 7626
Lake Havasu City 09:57:35 -48.9 Dark Up 73.7 153.8 Up 09:42:35 - 10:12:35 7606
Parker 09:57:35 -49.0 Dark Up 74.0 153.3 Up 09:42:35 - 10:12:35 7568
Idyllwild 09:57:48 -50.9 Dark Up 73.4 145.5 Up 09:42:48 - 10:12:48 7560
Blythe 09:57:37 -49.4 Dark Up 74.4 151.6 Up 09:42:37 - 10:12:37 7517
Calipatria 09:57:42 -50.3 Dark Up 74.4 147.8 Up 09:42:42 - 10:12:42 7478
Yuma 09:57:38 -49.7 Dark Up 75.2 149.8 Up 09:42:38 - 10:12:38 7419

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 530055, (2023/10/29 09:57UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 11.04  28
Alnath         05:26:17.5 +28:36:23  1.6  9.07  40
PPM 120839     05:20:18.3 +19:34:41  6.5  0.07  38
530055         05:20:29.0 +19:38:14 15.3        38
Positions are for J2000

Event circumstances last updated at 2019/07/05 22:26:41 UT

Marc W. Buie, Southwest Research Institute

RECON