RECON: TNO occultation with 612158

Event between (612158) 00FV53 and star GA0800:06272000 with event index number of 2807282

Geocentric closest approach at 2028/06/08 08:56:42 UTC

J2000 position of star is 17:20:34.2 -08:48:45
Equinox of date position of star is 17:21:47.6 -08:50:01
Stellar brightness G=16.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 20 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=23.6

[RECON map]
TNO is 35.5 AU from the Sun and 34.5 AU from the Earth.
The TNO is moving 24.2 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 768 seconds.
The 1-sigma cross-track error in the shadow position is 3416 km.
The sky-plane scale is 25039.5 km/arcsec.

The TNO has an absolute magnitude Hv=8.1
Diameter=147.2 km assuming a 5% albedo -- 6.1 sec chord
Diameter=60.1 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 612158, (2028/06/08 08:57UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:09.4 -26:29:33  0.9 21.39  22
35Eta Oph      17:12:00.7 -15:45:29  2.6  7.35  16
PPM 200511     17:18:14.3 -06:16:27  6.0  2.74  23
PPM 200560     17:21:32.9 -08:03:06  8.2  0.80  21
PPM 200570     17:22:13.4 -08:56:10  9.4  0.10  20
612158         17:22:07.4 -08:50:21 16.4        20
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 1.2 sigma about the mid-time.
The median site spacing is 18.7 km RECON observability=1.0 and success probability=6.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:56:02 -11.0 NT Up 25.4 207.8 Low 08:41:02 - 09:11:02 5356
Kamloops 08:56:39 -15.4 AT Up 29.8 192.5 Low 08:41:39 - 09:11:39 5215
Kelowna 08:56:35 -16.0 AT Up 30.4 193.6 Up 08:41:35 - 09:11:35 5176
Peachland 08:56:36 -16.2 AT Up 30.6 193.2 Up 08:41:36 - 09:11:36 5168
Summerland 08:56:35 -16.3 AT Up 30.7 193.4 Up 08:41:35 - 09:11:35 5160
Penticton 08:56:36 -16.4 AT Up 30.8 193.5 Up 08:41:36 - 09:11:36 5157
Oliver 08:56:35 -16.7 AT Up 31.1 193.5 Up 08:41:35 - 09:11:35 5137
Anarchist Mountain Observatory 08:56:34 -16.9 AT Up 31.2 193.8 Up 08:41:34 - 09:11:34 5129
Tonasket 08:56:34 -17.2 AT Up 31.5 193.8 Up 08:41:34 - 09:11:34 5110
Okanogan 08:56:34 -17.5 AT Up 31.9 193.6 Up 08:41:34 - 09:11:34 5090
Victoria 08:56:45 -17.9 AT Up 32.2 189.2 Up 08:41:45 - 09:11:45 5073
Brewster 08:56:34 -17.8 AT Up 32.2 193.4 Up 08:41:34 - 09:11:34 5073
Manson/Chelan 08:56:35 -18.1 Dark Up 32.5 193.1 Up 08:41:35 - 09:11:35 5058
Wenatchee 08:56:35 -18.6 Dark Up 32.9 192.9 Up 08:41:35 - 09:11:35 5029
Ellensburg 08:56:36 -19.0 Dark Up 33.4 192.7 Up 08:41:36 - 09:11:36 5002
Yakima 08:56:35 -19.4 Dark Up 33.8 192.8 Up 08:41:35 - 09:11:35 4977
Toppenish/White Swan 08:56:34 -19.6 Dark Up 34.0 193.0 Up 08:41:34 - 09:11:34 4965
PNWRO 08:56:30 -19.7 Dark Up 34.1 194.8 Up 08:41:30 - 09:11:30 4953
Goldendale 08:56:35 -20.2 Dark Up 34.6 192.6 Up 08:41:35 - 09:11:35 4928
The Dalles 08:56:37 -20.5 Dark Up 34.8 192.2 Up 08:41:37 - 09:11:37 4911
Maupin 08:56:35 -20.9 Dark Up 35.2 192.4 Up 08:41:35 - 09:11:35 4886
Sisters 08:56:36 -21.8 Dark Up 36.2 191.9 Up 08:41:36 - 09:11:36 4826
Bend 08:56:35 -22.0 Dark Up 36.4 192.3 Up 08:41:35 - 09:11:35 4813
Oregon Observatory 08:56:36 -22.2 Dark Up 36.6 192.1 Up 08:41:36 - 09:11:36 4801
North Lake 08:56:34 -22.7 Dark Up 37.1 192.9 Up 08:41:34 - 09:11:34 4763
Chiloquin 08:56:36 -23.5 Dark Up 37.9 191.8 Up 08:41:36 - 09:11:36 4710
Lakeview 08:56:31 -23.6 Dark Up 38.0 193.7 Up 08:41:31 - 09:11:31 4695
Klamath Falls 08:56:35 -23.8 Dark Up 38.2 192.0 Up 08:41:35 - 09:11:35 4687
Cedarville 08:56:30 -24.2 Dark Up 38.6 194.1 Up 08:41:30 - 09:11:30 4652
Dunrhomin 08:55:39 -21.3 Dark Up 35.4 212.0 Up 08:40:39 - 09:10:39 4646
CU-SBO 08:55:39 -21.6 Dark Up 35.7 211.9 Up 08:40:39 - 09:10:39 4629
Fall River/Burney 08:56:33 -24.9 Dark Up 39.3 192.6 Up 08:41:33 - 09:11:33 4609
Susanville 08:56:30 -25.4 Dark Up 39.8 193.7 Up 08:41:30 - 09:11:30 4570
Gimple 08:56:30 -25.7 Dark Up 40.1 193.5 Up 08:41:30 - 09:11:30 4549
Greenville 08:56:31 -25.7 Dark Up 40.1 193.4 Up 08:41:31 - 09:11:31 4548
Quincy 08:56:31 -25.9 Dark Up 40.3 193.4 Up 08:41:31 - 09:11:31 4534
Portola 08:56:29 -26.0 Dark Up 40.4 194.0 Up 08:41:29 - 09:11:29 4529
Reno 08:56:26 -26.1 Dark Up 40.5 194.9 Up 08:41:26 - 09:11:26 4515
Carson City 08:56:26 -26.4 Dark Up 40.8 195.0 Up 08:41:26 - 09:11:26 4489
Yerington 08:56:24 -26.5 Dark Up 40.9 195.9 Up 08:41:24 - 09:11:24 4480
Gardnerville 08:56:26 -26.7 Dark Up 41.1 195.1 Up 08:41:26 - 09:11:26 4472
Hawthorne 08:56:21 -26.8 Dark Up 41.2 196.6 Up 08:41:21 - 09:11:21 4450
Tonopah 08:56:16 -27.0 Dark Up 41.3 198.5 Up 08:41:16 - 09:11:16 4426
Lee Vining 08:56:22 -27.5 Dark Up 41.9 196.2 Up 08:41:22 - 09:11:22 4405
Bishop 08:56:20 -27.9 Dark Up 42.3 197.2 Up 08:41:20 - 09:11:20 4365
Beatty 08:56:13 -28.0 Dark Up 42.3 199.4 Up 08:41:13 - 09:11:13 4342
Indian Springs 08:56:09 -28.0 Dark Up 42.3 200.9 Up 08:41:09 - 09:11:09 4325
Henderson 08:56:06 -28.3 Dark Up 42.6 202.0 Up 08:41:06 - 09:11:06 4288
Patrick 08:56:01 -28.6 Dark Up 42.9 203.6 Up 08:41:01 - 09:11:01 4248
Kingman/Dolan Springs 08:56:02 -28.8 Dark Up 43.1 203.4 Up 08:41:02 - 09:11:02 4229
Laughlin/Bullhead City 08:56:03 -29.0 Dark Up 43.3 202.8 Up 08:41:03 - 09:11:03 4224
Mohave Valley 08:56:04 -29.3 Dark Up 43.6 202.9 Up 08:41:04 - 09:11:04 4203
Lake Havasu City 08:56:02 -29.6 Dark Up 43.9 203.4 Up 08:41:02 - 09:11:02 4173
Parker 08:56:02 -29.9 Dark Up 44.2 203.5 Up 08:41:02 - 09:11:02 4145
George/Scottsdale 08:55:53 -29.5 Dark Up 43.7 206.8 Up 08:40:53 - 09:10:53 4127
Wildwood 08:56:17 -31.1 Dark Up 45.5 197.9 Up 08:41:17 - 09:11:17 4111
Idyllwild 08:56:11 -31.0 Dark Up 45.3 200.5 Up 08:41:11 - 09:11:11 4097
Calipatria 08:56:05 -31.2 Dark Up 45.5 202.3 Up 08:41:05 - 09:11:05 4056
Yuma 08:56:02 -31.3 Dark Up 45.6 203.7 Up 08:41:02 - 09:11:02 4027

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 612158, (2028/06/08 08:57UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 21.39  22
35Eta Oph      17:10:22.7 -15:43:29  2.6  7.35  16
PPM 200511     17:16:42.8 -06:14:42  6.0  2.74  23
PPM 200560     17:20:00.2 -08:01:29  8.2  0.80  21
PPM 200570     17:20:40.1 -08:54:34  9.4  0.10  20
612158         17:20:34.2 -08:48:45 16.4        20
Positions are for J2000

Event circumstances last updated at 2022/05/25 23:47:13 UT

Marc W. Buie, Southwest Research Institute

RECON