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 07:05:31 UTC

J2000 position of star is 03:07:05.2 +15:46:18
Equinox of date position of star is 03:08:10.4 +15:50:44
Stellar brightness G=13.6, use SENSEUP=64
Star is 133 degrees from the moon. Moon is 9% illuminated.
TNO apparent brightness V=22.6

[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=7.5
Diameter=187.1 km assuming a 5% albedo -- 8.0 sec chord
Diameter=76.4 km assuming a 30% albedo -- 3.3 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 17.8 km RECON observability=1.0 and success probability=15.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 07:05:49 -53.0 Dark Down 51.7 145.2 Up 06:50:49 - 07:20:49 933
Summerland 07:05:51 -53.3 Dark Down 51.8 144.6 Up 06:50:51 - 07:20:51 917
Penticton 07:05:51 -53.3 Dark Down 51.9 144.7 Up 06:50:51 - 07:20:51 909
Okanagan Falls 07:05:51 -53.5 Dark Down 52.0 144.5 Up 06:50:51 - 07:20:51 895
Oliver 07:05:52 -53.7 Dark Down 52.2 144.4 Up 06:50:52 - 07:20:52 882
Anarchist Mountain Observatory 07:05:51 -53.9 Dark Down 52.4 144.6 Up 06:50:51 - 07:20:51 863
Oroville 07:05:52 -53.9 Dark Down 52.4 144.4 Up 06:50:52 - 07:20:52 859
Tonasket 07:05:52 -54.2 Dark Down 52.6 144.2 Up 06:50:52 - 07:20:52 840
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 - 07:20:55 801
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 07:06:00 -56.0 Dark Down 53.8 140.9 Up 06:51:00 - 07:21:00 701
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
George/Umatilla 07:05:59 -56.9 Dark Down 54.9 142.1 Up 06:50:59 - 07:20:59 612
PNWRO 07:05:57 -56.9 Dark Down 55.0 142.9 Up 06:50:57 - 07:20:57 607
Maupin 07:06:05 -57.2 Dark Down 54.7 138.9 Up 06:51:05 - 07:21:05 600
Madras/Culver 07:06:07 -57.7 Dark Down 55.1 138.4 Up 06:51:07 - 07:21:07 556
Sisters 07:06:09 -57.9 Dark Down 55.1 137.4 Up 06:51:09 - 07:21:09 541
Redmond 07:06:08 -58.1 Dark Down 55.3 138.0 Up 06:51:08 - 07:21:08 528
Bend 07:06:08 -58.2 Dark Down 55.4 137.6 Up 06:51:08 - 07:21:08 514
Oregon Observatory 07:06:09 -58.4 Dark Down 55.5 137.2 Up 06:51:09 - 07:21:09 503
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 - 07:21:09 433
Chiloquin 07:06:14 -59.5 Dark Down 56.3 135.3 Up 06:51:14 - 07:21:14 404
Paisley 07:06:10 -59.7 Dark Down 56.8 137.3 Up 06:51:10 - 07:21:10 376
Klamath Falls 07:06:14 -59.8 Dark Down 56.5 135.0 Up 06:51:14 - 07:21:14 373
Tulelake 07:06:14 -60.2 Dark Down 56.9 135.2 Up 06:51:14 - 07:21:14 341
Lakeview 07:06:10 -60.2 Dark Down 57.3 137.1 Up 06:51:10 - 07:21:10 327
Cedarville 07:06:11 -60.9 Dark Down 57.9 136.7 Up 06:51:11 - 07:21:11 265
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 - 07:21:15 182
Greenville 07:06:17 -62.0 Dark Down 58.5 133.9 Up 06:51:17 - 07:21:17 167
Gimple 07:06:17 -62.0 Dark Down 58.5 134.1 Up 06:51:17 - 07:21:17 164
Quincy 07:06:17 -62.2 Dark Down 58.6 133.7 Up 06:51:17 - 07:21:17 149
Portola 07:06:16 -62.4 Dark Down 58.9 134.3 Up 06:51:16 - 07:21:16 123
Reno 07:06:15 -62.9 Dark Down 59.5 135.0 Up 06:51:15 - 07:21:15 80
Carson City 07:06:15 -63.2 Dark Down 59.8 134.6 Up 06:51:15 - 07:21:15 47
Gardnerville 07:06:16 -63.4 Dark Down 60.0 134.3 Up 06:51:16 - 07:21:16 24
Yerington 07:06:14 -63.6 Dark Down 60.2 135.3 Up 06:51:14 - 07:21:14 10
Hawthorne 07:06:13 -64.1 Dark Down 60.9 135.6 Up 06:51:13 - 07:21:13 -48
Lee Vining 07:06:16 -64.5 Dark Down 61.0 134.1 Up 06:51:16 - 07:21:16 -84
Tonopah 07:06:10 -64.9 Dark Down 62.0 137.3 Up 06:51:10 - 07:21:10 -134
Bishop 07:06:15 -65.3 Dark Down 61.8 134.5 Up 06:51:15 - 07:21:15 -161
Lone Pine 07:06:16 -66.1 Dark Down 62.5 134.0 Up 06:51:16 - 07:21:16 -241
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 -291
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 -446
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 -484
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 -535
Idyllwild 07:06:17 -69.2 Dark Down 65.3 132.1 Up 06:51:17 - 07:21:17 -553
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
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 2019/06/08 09:18:49 UT

Marc W. Buie, Southwest Research Institute

RECON