RECON: TNO occultation with 13RZ108

Event between 13RZ108 and star GA1100:00521150 with event index number of 2674951

Geocentric closest approach at 2028/12/25 04:23:29 UTC

J2000 position of star is 04:06:56.3 +20:39:22
Equinox of date position of star is 04:08:14.3 +20:42:51
Stellar brightness G=15.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 46 degrees from the moon. Moon is 62% illuminated.
TNO apparent brightness V=23.0

[RECON map]
TNO is 31.3 AU from the Sun and 30.4 AU from the Earth.
The TNO is moving 20.1 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 623 seconds.
The 1-sigma cross-track error in the shadow position is 5815 km.
The sky-plane scale is 22052.7 km/arcsec.

The TNO has an absolute magnitude Hv=8.0
Diameter=148.6 km assuming a 5% albedo -- 7.4 sec chord
Diameter=60.7 km assuming a 30% albedo -- 3.0 sec chord
Dynamical classification is 5:2EEE
 
 
 
 
 
 

Star training set for 13RZ108, (2028/12/25 04:23UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:35.2 +16:33:56  0.8  8.02  53
44Zet Per      03:55:57.7 +31:58:02  2.8 11.59  45
43Ome1Tau      04:10:51.5 +19:41:01  5.5  1.17  47
PPM 119606     04:07:18.3 +20:01:54  8.4  0.77  46
PPM 093249     04:07:53.9 +20:44:40  9.6  0.17  46
13RZ108        04:08:38.4 +20:43:55 15.9        47
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 1.4 sigma about the mid-time.
The median site spacing is 27.5 km RECON observability=1.0 and success probability=8.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 04:24:26 -40.3 Dark Up 55.4 142.3 Up 04:09:26 - 04:39:26 -2712
Sleaford 04:23:37 -48.1 Dark Up 58.0 166.6 Up 04:08:37 - 04:38:37 -2781
Kelowna 04:24:24 -41.0 Dark Up 56.4 142.9 Up 04:09:24 - 04:39:24 -2801
Peachland 04:24:26 -40.8 Dark Up 56.4 142.3 Up 04:09:26 - 04:39:26 -2806
Summerland 04:24:26 -40.9 Dark Up 56.6 142.3 Up 04:09:26 - 04:39:26 -2821
Penticton 04:24:25 -41.0 Dark Up 56.7 142.5 Up 04:09:25 - 04:39:25 -2829
Victoria 04:24:40 -38.7 Dark Up 55.8 135.8 Up 04:09:40 - 04:39:40 -2854
Oliver 04:24:26 -41.1 Dark Up 56.9 142.1 Up 04:09:26 - 04:39:26 -2861
Anarchist Mountain Observatory 04:24:26 -41.2 Dark Up 57.2 142.3 Up 04:09:26 - 04:39:26 -2880
Tonasket 04:24:26 -41.3 Dark Up 57.4 141.9 Up 04:09:26 - 04:39:26 -2908
Okanogan 04:24:28 -41.2 Dark Up 57.6 141.3 Up 04:09:28 - 04:39:28 -2936
Brewster 04:24:29 -41.2 Dark Up 57.7 140.7 Up 04:09:29 - 04:39:29 -2958
Manson/Chelan 04:24:31 -41.0 Dark Up 57.7 140.0 Up 04:09:31 - 04:39:31 -2971
Wenatchee 04:24:32 -40.9 Dark Up 58.0 139.2 Up 04:09:32 - 04:39:32 -3012
Ellensburg 04:24:34 -40.9 Dark Up 58.2 138.4 Up 04:09:34 - 04:39:34 -3047
Yakima 04:24:35 -40.9 Dark Up 58.5 138.0 Up 04:09:35 - 04:39:35 -3085
Toppenish/White Swan 04:24:34 -41.1 Dark Up 58.7 138.0 Up 04:09:34 - 04:39:34 -3108
Goldendale 04:24:37 -40.9 Dark Up 59.0 136.7 Up 04:09:37 - 04:39:37 -3153
The Dalles 04:24:39 -40.6 Dark Up 58.9 135.9 Up 04:09:39 - 04:39:39 -3167
PNWRO 04:24:30 -42.1 Dark Up 59.7 140.0 Up 04:09:30 - 04:39:30 -3170
Maupin 04:24:39 -40.8 Dark Up 59.3 135.6 Up 04:09:39 - 04:39:39 -3209
Sisters 04:24:43 -40.5 Dark Up 59.7 133.8 Up 04:09:43 - 04:39:43 -3283
Bend 04:24:42 -40.7 Dark Up 60.0 133.9 Up 04:09:42 - 04:39:42 -3311
Oregon Observatory 04:24:43 -40.7 Dark Up 60.0 133.5 Up 04:09:43 - 04:39:43 -3325
North Lake 04:24:42 -41.1 Dark Up 60.8 133.5 Up 04:09:42 - 04:39:42 -3397
Chiloquin 04:24:47 -40.5 Dark Up 60.7 131.2 Up 04:09:47 - 04:39:47 -3444
Klamath Falls 04:24:48 -40.6 Dark Up 61.0 130.8 Up 04:09:48 - 04:39:48 -3479
Lakeview 04:24:42 -41.6 Dark Up 61.8 133.0 Up 04:09:42 - 04:39:42 -3511
Cedarville 04:24:43 -41.8 Dark Up 62.3 132.4 Up 04:09:43 - 04:39:43 -3579
Fall River/Burney 04:24:48 -40.9 Dark Up 62.0 129.8 Up 04:09:48 - 04:39:48 -3602
Susanville 04:24:47 -41.5 Dark Up 62.8 130.0 Up 04:09:47 - 04:39:47 -3679
Greenville 04:24:48 -41.3 Dark Up 62.8 129.1 Up 04:09:48 - 04:39:48 -3701
Gimple 04:24:48 -41.4 Dark Up 62.8 129.3 Up 04:09:48 - 04:39:48 -3703
Quincy 04:24:49 -41.3 Dark Up 62.9 128.8 Up 04:09:49 - 04:39:49 -3721
Portola 04:24:47 -41.7 Dark Up 63.3 129.4 Up 04:09:47 - 04:39:47 -3743
Reno 04:24:45 -42.2 Dark Up 63.8 130.0 Up 04:09:45 - 04:39:45 -3782
Carson City 04:24:46 -42.3 Dark Up 64.1 129.5 Up 04:09:46 - 04:39:46 -3819
Gardnerville 04:24:46 -42.3 Dark Up 64.3 129.2 Up 04:09:46 - 04:39:46 -3844
Yerington 04:24:44 -42.7 Dark Up 64.6 130.2 Up 04:09:44 - 04:39:44 -3851
Hawthorne 04:24:42 -43.2 Dark Up 65.2 130.4 Up 04:09:42 - 04:39:42 -3908
Dunrhomin 04:23:46 -53.0 Dark Up 69.6 161.6 Up 04:08:46 - 04:38:46 -3952
Lee Vining 04:24:45 -42.8 Dark Up 65.3 128.6 Up 04:09:45 - 04:39:45 -3955
CU-SBO 04:23:47 -53.0 Dark Up 69.8 161.2 Up 04:08:47 - 04:38:47 -3976
Tonopah 04:24:38 -44.3 Dark Up 66.3 132.1 Up 04:09:38 - 04:39:38 -3983
Bishop 04:24:44 -43.4 Dark Up 66.1 128.8 Up 04:09:44 - 04:39:44 -4031
Beatty 04:24:38 -44.7 Dark Up 67.4 130.9 Up 04:09:38 - 04:39:38 -4110
Indian Springs 04:24:34 -45.6 Dark Up 68.2 132.3 Up 04:09:34 - 04:39:34 -4164
Henderson 04:24:32 -46.2 Dark Up 69.0 132.7 Up 04:09:32 - 04:39:32 -4232
Patrick 04:24:28 -47.1 Dark Up 70.1 133.7 Up 04:09:28 - 04:39:28 -4317
Laughlin/Bullhead City 04:24:31 -46.5 Dark Up 69.8 131.8 Up 04:09:31 - 04:39:31 -4330
Kingman/Dolan Springs 04:24:29 -47.0 Dark Up 70.1 132.9 Up 04:09:29 - 04:39:29 -4337
Mohave Valley 04:24:32 -46.6 Dark Up 70.0 131.2 Up 04:09:32 - 04:39:32 -4359
Wildwood 04:24:50 -43.3 Dark Up 67.9 122.2 Up 04:09:50 - 04:39:50 -4362
Lake Havasu City 04:24:31 -46.8 Dark Up 70.4 130.9 Up 04:09:31 - 04:39:31 -4405
Idyllwild 04:24:42 -44.8 Dark Up 69.3 124.7 Up 04:09:42 - 04:39:42 -4438
Parker 04:24:32 -46.8 Dark Up 70.7 130.2 Up 04:09:32 - 04:39:32 -4442
Calipatria 04:24:38 -45.8 Dark Up 70.5 125.5 Up 04:09:38 - 04:39:38 -4525
George/Scottsdale 04:24:22 -48.8 Dark Up 72.4 134.6 Up 04:09:22 - 04:39:22 -4531
Yuma 04:24:35 -46.5 Dark Up 71.4 126.2 Up 04:09:35 - 04:39:35 -4588

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 13RZ108, (2028/12/25 04:23UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8  8.02  53
44Zet Per      03:54:07.9 +31:53:01  2.8 11.59  45
43Ome1Tau      04:09:10.1 +19:36:32  5.5  1.17  47
PPM 119606     04:05:36.8 +19:57:18  8.4  0.77  46
PPM 093249     04:06:11.8 +20:40:05  9.6  0.17  46
13RZ108        04:06:56.3 +20:39:22 15.9        46
Positions are for J2000

Event circumstances last updated at 2022/02/23 00:44:09 UT

Marc W. Buie, Southwest Research Institute

RECON