RECON: TNO occultation with 612891

Event between (612891) 04TT357 and star GA1060:01952875 with event index number of 2804859

Geocentric closest approach at 2028/11/14 04:38:51 UTC

J2000 position of star is 06:22:33.4 +16:53:08
Equinox of date position of star is 06:23:51.3 +16:52:23
Stellar brightness G=17.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 104 degrees from the moon. Moon is 8% illuminated.
TNO apparent brightness V=23.5

[RECON map]
TNO is 35.4 AU from the Sun and 34.7 AU from the Earth.
The TNO is moving 16.8 km/sec on the sky relative to the star, or, 2.4 arcsec/hr.
The 1-sigma error in the time of the event is 807 seconds.
The 1-sigma cross-track error in the shadow position is 5005 km.
The sky-plane scale is 25136.5 km/arcsec.

The TNO has an absolute magnitude Hv=7.9
Diameter=157.8 km assuming a 5% albedo -- 9.4 sec chord
Diameter=64.4 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is 5:2EEE
 
 
 
 
 
 

Star training set for 612891, (2028/11/14 04:39UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:44.1 +07:24:36  0.4 11.60 109
Alhena         06:39:22.8 +16:22:20  1.9  3.66 100
PPM 122270     06:20:42.5 +17:18:40  6.1  0.95 105
PPM 122378     06:24:49.6 +16:29:55  7.8  0.40 104
PPM 122357     06:24:00.2 +17:08:14  9.2  0.27 104
612891         06:24:13.8 +16:52:09 17.0       103
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 1.1 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.1 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 04:42:17 -41.5 Dark Down 12.0 77.9 Really Low 04:27:17 - 04:57:17 10853
Victoria 04:42:28 -40.5 Dark Down 9.6 75.3 Really Low 04:27:28 - 04:57:28 10793
Kelowna 04:42:21 -42.3 Dark Down 12.4 78.4 Really Low 04:27:21 - 04:57:21 10789
Peachland 04:42:22 -42.2 Dark Down 12.2 78.2 Really Low 04:27:22 - 04:57:22 10789
Summerland 04:42:24 -42.3 Dark Down 12.2 78.2 Really Low 04:27:24 - 04:57:24 10779
Penticton 04:42:24 -42.4 Dark Down 12.3 78.3 Really Low 04:27:24 - 04:57:24 10773
Oliver 04:42:26 -42.6 Dark Down 12.2 78.2 Really Low 04:27:26 - 04:57:26 10752
Anarchist Mountain Observatory 04:42:25 -42.8 Dark Down 12.3 78.3 Really Low 04:27:25 - 04:57:25 10739
Tonasket 04:42:28 -42.8 Dark Down 12.2 78.2 Really Low 04:27:28 - 04:57:28 10722
Okanogan 04:42:30 -42.9 Dark Down 12.0 78.0 Really Low 04:27:30 - 04:57:30 10705
Brewster 04:42:31 -42.9 Dark Down 11.8 77.8 Really Low 04:27:31 - 04:57:31 10693
Manson/Chelan 04:42:33 -42.7 Dark Down 11.6 77.5 Really Low 04:27:33 - 04:57:33 10689
Wenatchee 04:42:34 -42.8 Dark Down 11.3 77.3 Really Low 04:27:34 - 04:57:34 10664
Ellensburg 04:42:38 -42.8 Dark Down 11.1 77.1 Really Low 04:27:38 - 04:57:38 10644
Sleaford 04:42:05 -48.2 Dark Down 21.0 89.3 Low 04:27:05 - 04:57:05 10635
Yakima 04:42:39 -43.0 Dark Down 11.0 77.0 Really Low 04:27:39 - 04:57:39 10619
Toppenish/White Swan 04:42:40 -43.2 Dark Down 11.1 77.1 Really Low 04:27:40 - 04:57:40 10602
Goldendale 04:42:42 -43.1 Dark Down 10.7 76.7 Really Low 04:27:42 - 04:57:42 10577
The Dalles 04:42:45 -42.9 Dark Down 10.4 76.4 Really Low 04:27:45 - 04:57:45 10571
PNWRO 04:42:43 -44.3 Dark Down 12.0 78.1 Really Low 04:27:43 - 04:57:43 10546
Maupin 04:42:47 -43.1 Dark Down 10.4 76.4 Really Low 04:27:47 - 04:57:47 10542
Sisters 04:42:51 -43.1 Dark Down 9.8 75.9 Really Low 04:27:51 - 04:57:51 10497
Bend 04:42:53 -43.4 Dark Down 10.0 76.1 Really Low 04:27:53 - 04:57:53 10476
Oregon Observatory 04:42:53 -43.3 Dark Down 9.8 76.0 Really Low 04:27:53 - 04:57:53 10468
North Lake 04:42:56 -43.9 Dark Down 10.1 76.2 Really Low 04:27:56 - 04:57:56 10414
Chiloquin 04:42:58 -43.4 Dark Down 9.2 75.5 Really Low 04:27:58 - 04:57:58 10390
Klamath Falls 04:43:02 -43.6 Dark Down 9.2 75.5 Really Low 04:28:02 - 04:58:02 10366
Lakeview 04:43:02 -44.6 Dark Down 10.2 76.4 Really Low 04:28:02 - 04:58:02 10330
Cedarville 04:43:03 -45.0 Dark Down 10.2 76.4 Really Low 04:28:03 - 04:58:03 10281
Fall River/Burney 04:43:08 -44.2 Dark Down 9.2 75.6 Really Low 04:28:08 - 04:58:08 10276
Susanville 04:43:12 -44.9 Dark Down 9.6 76.0 Really Low 04:28:12 - 04:58:12 10214
Greenville 04:43:13 -44.8 Dark Down 9.3 75.7 Really Low 04:28:13 - 04:58:13 10202
Gimple 04:43:12 -44.9 Dark Down 9.4 75.8 Really Low 04:28:12 - 04:58:12 10200
Quincy 04:43:13 -44.9 Dark Down 9.3 75.7 Really Low 04:28:13 - 04:58:13 10187
Portola 04:43:15 -45.2 Dark Down 9.6 76.0 Really Low 04:28:15 - 04:58:15 10167
Reno 04:43:14 -45.8 Dark Down 10.0 76.3 Really Low 04:28:14 - 04:58:14 10132
Carson City 04:43:18 -45.9 Dark Down 10.0 76.3 Really Low 04:28:18 - 04:58:18 10105
Gardnerville 04:43:19 -46.0 Dark Down 10.0 76.3 Really Low 04:28:19 - 04:58:19 10087
Yerington 04:43:18 -46.4 Dark Down 10.4 76.6 Really Low 04:28:18 - 04:58:18 10076
Hawthorne 04:43:21 -47.0 Dark Down 10.7 76.9 Really Low 04:28:21 - 04:58:21 10028
Lee Vining 04:43:24 -46.8 Dark Down 10.2 76.5 Really Low 04:28:24 - 04:58:24 9999
Tonopah 04:43:23 -48.2 Dark Down 11.7 77.6 Really Low 04:28:23 - 04:58:23 9958
Bishop 04:43:24 -47.5 Dark Down 10.6 76.8 Really Low 04:28:24 - 04:58:24 9936
Beatty 04:43:29 -48.9 Dark Down 11.8 77.6 Really Low 04:28:29 - 04:58:29 9858
Dunrhomin 04:43:08 -55.9 Dark Down 21.2 85.4 Low 04:28:08 - 04:58:08 9810
Indian Springs 04:43:30 -49.8 Dark Down 12.6 78.2 Really Low 04:28:30 - 04:58:30 9804
CU-SBO 04:43:09 -55.9 Dark Down 21.1 85.3 Low 04:28:09 - 04:58:09 9794
Henderson 04:43:33 -50.5 Dark Down 13.1 78.5 Really Low 04:28:33 - 04:58:33 9744
Wildwood 04:43:41 -48.1 Dark Down 9.8 76.2 Really Low 04:28:41 - 04:58:41 9687
Patrick 04:43:35 -51.5 Dark Down 13.8 78.9 Really Low 04:28:35 - 04:58:35 9665
Laughlin/Bullhead City 04:43:36 -51.0 Dark Down 13.2 78.5 Really Low 04:28:36 - 04:58:36 9664
Kingman/Dolan Springs 04:43:36 -51.4 Dark Down 13.6 78.8 Really Low 04:28:36 - 04:58:36 9652
Mohave Valley 04:43:38 -51.1 Dark Down 13.2 78.4 Really Low 04:28:38 - 04:58:38 9642
Idyllwild 04:43:43 -49.7 Dark Down 11.2 77.1 Really Low 04:28:43 - 04:58:43 9608
Lake Havasu City 04:43:39 -51.4 Dark Down 13.3 78.5 Really Low 04:28:39 - 04:58:39 9604
Parker 04:43:41 -51.5 Dark Down 13.3 78.4 Really Low 04:28:41 - 04:58:41 9574
Calipatria 04:43:47 -50.8 Dark Down 12.1 77.6 Really Low 04:28:47 - 04:58:47 9526
George/Scottsdale 04:43:42 -53.6 Dark Down 15.2 79.6 Really Low 04:28:42 - 04:58:42 9473
Yuma 04:43:47 -51.6 Dark Down 12.7 77.9 Really Low 04:28:47 - 04:58:47 9465

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 612891, (2028/11/14 04:39UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 11.60 109
Alhena         06:37:42.8 +16:23:56  1.9  3.66 100
PPM 122270     06:19:01.8 +17:19:31  6.1  0.95 105
PPM 122378     06:23:09.5 +16:30:56  7.8  0.40 104
PPM 122357     06:22:19.6 +17:09:13  9.2  0.27 104
612891         06:22:33.4 +16:53:08 17.0       104
Positions are for J2000

Event circumstances last updated at 2022/05/30 23:03:28 UT

Marc W. Buie, Southwest Research Institute

RECON