RECON: TNO occultation with 05TN74

Event between 05TN74 and star GA1040:00299968 with event index number of 1367581

Geocentric closest approach at 2024/10/29 07:05:30 UTC

J2000 position of star is 03:07:05.2 +15:46:18
Equinox of date position of star is 03:08:13.0 +15:50:55
Stellar brightness G=13.6, use SENSEUP=64
Star is 133 degrees from the moon. Moon is 9% illuminated.
TNO apparent brightness V=25.1

[RECON map]
TNO is 32.1 AU from the Sun and 31.2 AU from the Earth.
The TNO is moving 23.5 km/sec on the sky relative to the star, or, 3.7 arcsec/hr.
The 1-sigma error in the time of the event is 346 seconds.
The 1-sigma cross-track error in the shadow position is 2984 km.
The sky-plane scale is 22599.5 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=187.1 km assuming a 5% albedo -- 2.6 sec chord
Diameter=76.4 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is 5:3EE
 
 
 
 
 
 

Star training set for 05TN74, (2024/10/29 07:06UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:20.9 +16:33:27  0.8 21.34 111
Menkar         03:03:34.8 +04:11:09  2.5 11.74 136
PPM 118814     03:07:45.7 +13:16:54  5.6  2.59 133
PPM 118791     03:06:03.8 +15:57:03  7.9  0.59 133
PPM 118825     03:08:40.8 +16:10:19 10.0  0.31 132
PPM 118829     03:08:58.7 +15:35:49 10.4  0.30 132
05TN74         03:08:28.5 +15:51:58 13.6       132
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 2.6 sigma about the mid-time.
The median site spacing is 20.3 km RECON observability=1.0 and success probability=15.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 07:05:48 -52.7 Dark Down 51.4 145.5 Up 06:50:48 - 07:20:48 959
Kelowna 07:05:50 -53.0 Dark Down 51.7 145.1 Up 06:50:50 - 07:20:50 933
Victoria 07:06:03 -53.5 Dark Down 51.1 138.6 Up 06:51:03 - 07:21:03 933
Peachland 07:05:51 -53.1 Dark Down 51.6 144.5 Up 06:50:51 - 07:20:51 932
Summerland 07:05:51 -53.3 Dark Down 51.8 144.6 Up 06:50:51 - 07:20:51 918
Penticton 07:05:51 -53.3 Dark Down 51.9 144.7 Up 06:50:51 - 07:20:51 909
Oliver 07:05:52 -53.7 Dark Down 52.2 144.4 Up 06:50:52 - 07:20:52 882
Anarchist Mountain Observatory 07:05:52 -53.9 Dark Down 52.4 144.6 Up 06:50:52 - 07:20:52 864
Tonasket 07:05:52 -54.2 Dark Down 52.6 144.2 Up 06:50:52 - 07:20:52 841
Okanogan 07:05:54 -54.5 Dark Down 52.8 143.8 Up 06:50:54 - 07:20:54 818
Brewster 07:05:55 -54.7 Dark Down 53.0 143.3 Up 06:50:55 - 07:20:55 802
Manson/Chelan 07:05:56 -54.8 Dark Down 53.0 142.6 Up 06:50:56 - 07:20:56 795
Entiat 07:05:57 -55.0 Dark Down 53.1 142.3 Up 06:50:57 - 07:20:57 779
Wenatchee 07:05:58 -55.3 Dark Down 53.3 142.0 Up 06:50:58 - 07:20:58 761
Ellensburg 07:05:59 -55.6 Dark Down 53.5 141.3 Up 06:50:59 - 07:20:59 734
Yakima 07:06:01 -56.0 Dark Down 53.8 140.9 Up 06:51:01 - 07:21:01 702
Toppenish/White Swan 07:06:01 -56.2 Dark Down 54.1 141.0 Up 06:51:01 - 07:21:01 679
Goldendale 07:06:03 -56.7 Dark Down 54.3 139.9 Up 06:51:03 - 07:21:03 646
The Dalles 07:06:05 -56.8 Dark Down 54.3 139.2 Up 06:51:05 - 07:21:05 638
Pasco 07:05:57 -56.6 Dark Down 54.7 142.8 Up 06:50:57 - 07:20:57 634
PNWRO 07:05:57 -56.9 Dark Down 55.0 142.9 Up 06:50:57 - 07:20:57 608
Maupin 07:06:05 -57.2 Dark Down 54.7 138.9 Up 06:51:05 - 07:21:05 600
Sisters 07:06:09 -57.9 Dark Down 55.1 137.4 Up 06:51:09 - 07:21:09 542
Redmond 07:06:08 -58.1 Dark Down 55.3 138.0 Up 06:51:08 - 07:21:08 528
Bend 07:06:09 -58.2 Dark Down 55.4 137.6 Up 06:51:09 - 07:21:09 514
Oregon Observatory 07:06:09 -58.4 Dark Down 55.5 137.2 Up 06:51:09 - 07:21:09 504
La Pine/Gilchrist 07:06:10 -58.5 Dark Down 55.6 136.9 Up 06:51:10 - 07:21:10 488
North Lake 07:06:09 -59.1 Dark Down 56.2 137.4 Up 06:51:09 - 07:21:09 434
Paisley 07:06:10 -59.7 Dark Down 56.8 137.3 Up 06:51:10 - 07:21:10 377
Klamath Falls 07:06:14 -59.8 Dark Down 56.5 135.0 Up 06:51:14 - 07:21:14 373
Lakeview 07:06:10 -60.2 Dark Down 57.3 137.1 Up 06:51:10 - 07:21:10 328
Cedarville 07:06:11 -60.9 Dark Down 57.9 136.7 Up 06:51:11 - 07:21:11 266
Fall River/Burney 07:06:16 -61.0 Dark Down 57.6 134.3 Up 06:51:16 - 07:21:16 260
Susanville 07:06:15 -61.8 Dark Down 58.4 134.7 Up 06:51:15 - 07:21:15 183
Greenville 07:06:17 -62.0 Dark Down 58.5 133.9 Up 06:51:17 - 07:21:17 168
Gimple 07:06:17 -62.0 Dark Down 58.5 134.1 Up 06:51:17 - 07:21:17 165
Quincy 07:06:17 -62.2 Dark Down 58.6 133.7 Up 06:51:17 - 07:21:17 150
Portola 07:06:16 -62.4 Dark Down 58.9 134.3 Up 06:51:16 - 07:21:16 124
Reno 07:06:15 -62.9 Dark Down 59.5 135.0 Up 06:51:15 - 07:21:15 81
Carson City 07:06:15 -63.2 Dark Down 59.8 134.6 Up 06:51:15 - 07:21:15 48
Gardnerville 07:06:16 -63.4 Dark Down 60.0 134.3 Up 06:51:16 - 07:21:16 25
Yerington 07:06:14 -63.6 Dark Down 60.2 135.3 Up 06:51:14 - 07:21:14 11
Hawthorne 07:06:13 -64.1 Dark Down 60.9 135.6 Up 06:51:13 - 07:21:13 -47
Lee Vining 07:06:16 -64.5 Dark Down 61.0 134.1 Up 06:51:16 - 07:21:16 -83
Tonopah 07:06:10 -64.9 Dark Down 62.0 137.3 Up 06:51:10 - 07:21:10 -133
Bishop 07:06:15 -65.3 Dark Down 61.8 134.5 Up 06:51:15 - 07:21:15 -160
Beatty 07:06:11 -66.1 Dark Down 63.0 136.6 Up 06:51:11 - 07:21:11 -254
CPSLO 07:06:27 -66.5 Dark Down 61.8 128.1 Up 06:51:27 - 07:21:27 -277
Niwot 07:05:26 -63.1 Dark Down 64.8 162.9 Up 06:50:26 - 07:20:26 -290
SwRI 07:05:26 -63.2 Dark Down 64.9 162.6 Up 06:50:26 - 07:20:26 -298
Indian Springs 07:06:08 -66.6 Dark Down 63.9 138.1 Up 06:51:08 - 07:21:08 -318
Henderson 07:06:06 -67.3 Dark Down 64.6 138.6 Up 06:51:06 - 07:21:06 -390
Searchlight/Boulder City 07:06:07 -67.8 Dark Down 65.1 137.9 Up 06:51:07 - 07:21:07 -445
Wildwood 07:06:23 -68.3 Dark Down 63.9 129.5 Up 06:51:23 - 07:21:23 -457
Patrick 07:06:04 -68.0 Dark Down 65.7 139.8 Up 06:51:04 - 07:21:04 -483
Laughlin/Bullhead City 07:06:07 -68.2 Dark Down 65.5 138.1 Up 06:51:07 - 07:21:07 -485
Kingman/Dolan Springs 07:06:05 -68.2 Dark Down 65.8 139.2 Up 06:51:05 - 07:21:05 -499
Mohave Valley 07:06:07 -68.4 Dark Down 65.7 137.7 Up 06:51:07 - 07:21:07 -511
DCO 07:06:02 -68.4 Dark Down 66.3 140.8 Up 06:51:02 - 07:21:02 -534
Idyllwild 07:06:17 -69.2 Dark Down 65.3 132.1 Up 06:51:17 - 07:21:17 -552
Lake Havasu City 07:06:07 -68.9 Dark Down 66.2 137.6 Up 06:51:07 - 07:21:07 -557
Parker 07:06:08 -69.2 Dark Down 66.4 137.1 Up 06:51:08 - 07:21:08 -591
Blythe 07:06:10 -69.7 Dark Down 66.6 135.7 Up 06:51:10 - 07:21:10 -632
Calipatria 07:06:14 -70.0 Dark Down 66.4 133.2 Up 06:51:14 - 07:21:14 -649
George/Scottsdale 07:06:00 -69.9 Dark Down 68.1 141.4 Up 06:51:00 - 07:21:00 -708
Yuma 07:06:12 -70.6 Dark Down 67.3 134.1 Up 06:51:12 - 07:21:12 -719

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 05TN74, (2024/10/29 07:06UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 21.34 111
Menkar         03:02:16.8 +04:05:21  2.5 11.74 136
PPM 118814     03:06:23.7 +13:11:13  5.6  2.59 133
PPM 118791     03:04:40.6 +15:51:20  7.9  0.59 133
PPM 118825     03:07:17.5 +16:04:39 10.0  0.31 132
PPM 118829     03:07:35.6 +15:30:10 10.4  0.30 132
05TN74         03:07:05.2 +15:46:18 13.6       133
Positions are for J2000

Event circumstances last updated at 2020/03/25 01:27:21 UT

Marc W. Buie, Southwest Research Institute

RECON