RECON: TNO occultation with 13RU128

Event between 13RU128 and star GA0880:19175175 with event index number of 1871620

Geocentric closest approach at 2024/10/19 06:56:13 UTC

J2000 position of star is 22:57:08.7 -01:23:54
Equinox of date position of star is 22:58:13.9 -01:17:06
Stellar brightness G=14.1, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 67 degrees from the moon. Moon is 95% illuminated.
TNO apparent brightness V=24.2

[RECON map]
TNO is 41.1 AU from the Sun and 40.4 AU from the Earth.
The TNO is moving 17.9 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 584 seconds.
The 1-sigma cross-track error in the shadow position is 4349 km.
The sky-plane scale is 29274.4 km/arcsec.

The TNO has an absolute magnitude Hv=8.0
Diameter=148.6 km assuming a 5% albedo -- 8.3 sec chord
Diameter=60.7 km assuming a 30% albedo -- 3.4 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 13RU128, (2024/10/19 06:56UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:59:00.9 -29:29:24  1.2 28.23  80
Markab         23:05:59.9 +15:20:21  2.5 16.71  59
PPM 206984     22:59:32.2 -02:15:44  6.2  1.04  67
PPM 181551     22:59:40.3 -01:16:38  6.8  0.31  66
PPM 181548     22:58:32.0 -01:17:04 10.0  0.03  67
13RU128        22:58:25.2 -01:15:55 14.1        66
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 1.5 sigma about the mid-time.
The median site spacing is 23.1 km RECON observability=1.0 and success probability=7.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 06:52:17 -49.2 Dark Up 36.0 209.7 Up 06:37:17 - 07:07:17 -4791
Clarence Fulton 06:52:06 -48.6 Dark Up 33.2 213.7 Up 06:37:06 - 07:07:06 -4810
Peachland 06:52:08 -49.0 Dark Up 33.8 213.4 Up 06:37:08 - 07:07:08 -4833
Kelowna 06:52:06 -49.0 Dark Up 33.6 213.7 Up 06:37:06 - 07:07:06 -4835
Summerland 06:52:05 -49.2 Dark Up 33.9 213.5 Up 06:37:05 - 07:07:05 -4848
Penticton 06:52:06 -49.2 Dark Up 33.9 213.7 Up 06:37:06 - 07:07:06 -4858
Oliver 06:52:07 -49.6 Dark Up 34.2 213.8 Up 06:37:07 - 07:07:07 -4886
Anarchist Mountain Observatory 06:52:05 -49.8 Dark Up 34.2 214.1 Up 06:37:05 - 07:07:05 -4907
Tonasket 06:52:06 -50.1 Dark Up 34.5 214.1 Up 06:37:06 - 07:07:06 -4929
Okanogan 06:52:06 -50.3 Dark Up 34.9 214.1 Up 06:37:06 - 07:07:06 -4951
Brewster 06:52:08 -50.5 Dark Up 35.1 214.0 Up 06:37:08 - 07:07:08 -4965
Manson/Chelan 06:52:08 -50.7 Dark Up 35.5 213.6 Up 06:37:08 - 07:07:08 -4968
Wenatchee 06:52:08 -51.1 Dark Up 35.9 213.6 Up 06:37:08 - 07:07:08 -5000
Ellensburg 06:52:11 -51.4 Dark Up 36.3 213.6 Up 06:37:11 - 07:07:11 -5025
Yakima 06:52:11 -51.8 Dark Up 36.7 213.7 Up 06:37:11 - 07:07:11 -5057
Toppenish/White Swan 06:52:12 -52.0 Dark Up 36.8 214.0 Up 06:37:12 - 07:07:12 -5082
Goldendale 06:52:12 -52.4 Dark Up 37.4 213.7 Up 06:37:12 - 07:07:12 -5110
The Dalles 06:52:12 -52.5 Dark Up 37.8 213.4 Up 06:37:12 - 07:07:12 -5114
Pasco 06:52:08 -52.4 Dark Up 36.4 215.5 Up 06:37:08 - 07:07:08 -5142
Maupin 06:52:14 -52.9 Dark Up 38.1 213.7 Up 06:37:14 - 07:07:14 -5153
PNWRO 06:52:05 -52.7 Dark Up 36.5 215.8 Up 06:37:05 - 07:07:05 -5172
Sisters 06:52:16 -53.6 Dark Up 39.0 213.5 Up 06:37:16 - 07:07:16 -5205
Redmond 06:52:14 -53.7 Dark Up 38.8 214.0 Up 06:37:14 - 07:07:14 -5223
Bend 06:52:16 -53.9 Dark Up 39.1 214.0 Up 06:37:16 - 07:07:16 -5235
Oregon Observatory 06:52:16 -54.0 Dark Up 39.3 213.9 Up 06:37:16 - 07:07:16 -5244
La Pine/Gilchrist 06:52:15 -54.2 Dark Up 39.5 213.9 Up 06:37:15 - 07:07:15 -5259
North Lake 06:52:15 -54.7 Dark Up 39.6 214.8 Up 06:37:15 - 07:07:15 -5321
Chiloquin 06:52:19 -55.1 Dark Up 40.5 214.0 Up 06:37:19 - 07:07:19 -5337
Klamath Falls 06:52:18 -55.4 Dark Up 40.8 214.3 Up 06:37:18 - 07:07:18 -5369
Paisley 06:52:15 -55.4 Dark Up 39.9 215.5 Up 06:37:15 - 07:07:15 -5382
Lakeview 06:52:13 -55.9 Dark Up 40.2 216.0 Up 06:37:13 - 07:07:13 -5434
Fall River/Burney 06:52:17 -56.6 Dark Up 41.6 215.3 Up 06:37:17 - 07:07:17 -5486
Cedarville 06:52:15 -56.5 Dark Up 40.7 216.5 Up 06:37:15 - 07:07:15 -5498
Susanville 06:52:16 -57.4 Dark Up 41.8 216.5 Up 06:37:16 - 07:07:16 -5573
Greenville 06:52:17 -57.5 Dark Up 42.1 216.3 Up 06:37:17 - 07:07:17 -5584
Gimple 06:52:19 -57.6 Dark Up 42.1 216.4 Up 06:37:19 - 07:07:19 -5588
Quincy 06:52:19 -57.7 Dark Up 42.3 216.5 Up 06:37:19 - 07:07:19 -5601
Portola 06:52:17 -58.0 Dark Up 42.2 217.1 Up 06:37:17 - 07:07:17 -5633
Reno 06:52:15 -58.4 Dark Up 42.1 218.0 Up 06:37:15 - 07:07:15 -5685
Carson City 06:52:16 -58.8 Dark Up 42.3 218.2 Up 06:37:16 - 07:07:16 -5717
Gardnerville 06:52:14 -59.0 Dark Up 42.5 218.4 Up 06:37:14 - 07:07:14 -5741
Yerington 06:52:15 -59.2 Dark Up 42.2 219.1 Up 06:37:15 - 07:07:15 -5763
Hawthorne 06:52:12 -59.7 Dark Up 42.3 220.0 Up 06:37:12 - 07:07:12 -5827
Lee Vining 06:52:15 -60.1 Dark Up 43.0 219.7 Up 06:37:15 - 07:07:15 -5856
Tonopah 06:52:07 -60.6 Dark Up 41.9 221.9 Up 06:37:07 - 07:07:07 -5932
Bishop 06:52:13 -60.9 Dark Up 43.1 220.9 Up 06:37:13 - 07:07:13 -5942
CPSLO 06:52:24 -61.9 Dark Up 45.8 219.6 Up 06:37:24 - 07:07:24 -6022
Beatty 06:52:08 -61.8 Dark Up 42.5 223.1 Up 06:37:08 - 07:07:08 -6057
Indian Springs 06:52:04 -62.4 Dark Up 42.2 224.5 Up 06:37:04 - 07:07:04 -6135
Henderson 06:52:01 -63.1 Dark Up 42.2 225.6 Up 06:37:01 - 07:07:01 -6215
Dunrhomin 06:51:28 -59.9 Dark Up 33.7 233.0 Up 06:36:28 - 07:06:28 -6220
Wildwood 06:52:19 -63.8 Dark Up 45.6 222.9 Up 06:37:19 - 07:07:19 -6229
Laughlin/Bullhead City 06:52:01 -64.0 Dark Up 42.5 226.6 Up 06:37:01 - 07:07:01 -6314
Patrick 06:52:00 -64.0 Dark Up 41.9 227.2 Up 06:37:00 - 07:07:00 -6323
Kingman/Dolan Springs 06:51:59 -64.1 Dark Up 42.2 227.2 Up 06:36:59 - 07:06:59 -6335
Mohave Valley 06:52:01 -64.3 Dark Up 42.7 226.8 Up 06:37:01 - 07:07:01 -6340
Idyllwild 06:52:10 -64.8 Dark Up 44.8 225.3 Up 06:37:10 - 07:07:10 -6350
Lake Havasu City 06:52:01 -64.7 Dark Up 42.8 227.3 Up 06:37:01 - 07:07:01 -6388
Parker 06:52:02 -65.1 Dark Up 43.1 227.6 Up 06:37:02 - 07:07:02 -6422
Blythe 06:52:03 -65.5 Dark Up 43.6 227.7 Up 06:37:03 - 07:07:03 -6458
Calipatria 06:52:08 -65.7 Dark Up 44.5 227.0 Up 06:37:08 - 07:07:08 -6461
Yuma 06:52:05 -66.4 Dark Up 44.2 228.3 Up 06:37:05 - 07:07:05 -6543
George/Scottsdale 06:51:53 -66.0 Dark Up 41.8 230.5 Up 06:36:53 - 07:06:53 -6571

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 13RU128, (2024/10/19 06:56UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 28.23  80
Markab         23:04:45.8 +15:12:18  2.5 16.71  59
PPM 206984     22:58:15.5 -02:23:44  6.2  1.04  67
PPM 181551     22:58:23.8 -01:24:37  6.8  0.31  66
PPM 181548     22:57:15.5 -01:25:03 10.0  0.03  67
13RU128        22:57:08.7 -01:23:54 14.1        67
Positions are for J2000

Event circumstances last updated at 2021/02/27 01:44:00 UT

Marc W. Buie, Southwest Research Institute

RECON