RECON: TNO occultation with 15874

Event between (15874) 96TL66 and star GA0940:00720010 with event index number of 1130582

Geocentric closest approach at 2022/02/04 07:22:22 UTC

J2000 position of star is 05:24:10.8 +05:40:44
Equinox of date position of star is 05:25:15.4 +05:41:46
Stellar brightness G=14.1, use SENSEUP=64
Star is 84 degrees from the moon. Moon is 12% illuminated.
TNO apparent brightness V=26.0

[RECON map]
TNO is 38.7 AU from the Sun and 38.1 AU from the Earth.
The TNO is moving 13.5 km/sec on the sky relative to the star, or, 1.8 arcsec/hr.
The 1-sigma error in the time of the event is 390 seconds.
The 1-sigma cross-track error in the shadow position is 2575 km.
The sky-plane scale is 27665.7 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=524.8 km assuming a 5% albedo -- 4.5 sec chord
Diameter=214.3 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 15874, (2022/02/04 07:22UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:22.1 +07:24:34  0.4  7.89  92
Bellatrix      05:26:19.0 +06:22:04  1.6  0.71  84
PPM 148872     05:24:41.7 +05:20:32  6.2  0.39  84
PPM 148873     05:24:45.4 +05:50:26  8.3  0.21  84
PPM 148896     05:25:39.8 +05:50:46 10.4  0.17  84
15874          05:25:21.6 +05:41:52 14.1        84
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 2.3 sigma about the mid-time.
The median site spacing is 12.2 km RECON observability=1.0 and success probability=3.8%
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 07:21:04 -54.5 Dark Down 32.1 235.2 Up 07:06:04 - 07:36:04 5839
Kelowna 07:21:02 -54.8 Dark Down 32.4 235.2 Up 07:06:02 - 07:36:02 5815
Peachland 07:21:02 -54.8 Dark Down 32.6 235.0 Up 07:06:02 - 07:36:02 5803
Summerland 07:21:00 -55.0 Dark Down 32.6 235.1 Up 07:06:00 - 07:36:00 5797
Penticton 07:21:00 -55.1 Dark Down 32.6 235.3 Up 07:06:00 - 07:36:00 5796
Oliver 07:20:57 -55.4 Dark Down 32.8 235.5 Up 07:05:57 - 07:35:57 5778
Anarchist Mountain Observatory 07:20:57 -55.6 Dark Down 32.8 235.8 Up 07:05:57 - 07:35:57 5774
Tonasket 07:20:54 -55.9 Dark Down 33.0 235.8 Up 07:05:54 - 07:35:54 5755
Okanogan 07:20:53 -56.2 Dark Down 33.3 235.9 Up 07:05:53 - 07:35:53 5733
Brewster 07:20:51 -56.4 Dark Down 33.6 235.8 Up 07:05:51 - 07:35:51 5714
Manson/Chelan 07:20:53 -56.5 Dark Down 33.9 235.6 Up 07:05:53 - 07:35:53 5694
Entiat 07:20:50 -56.6 Dark Down 34.1 235.6 Up 07:05:50 - 07:35:50 5680
Wenatchee 07:20:50 -56.8 Dark Down 34.3 235.6 Up 07:05:50 - 07:35:50 5663
Victoria 07:21:07 -54.9 Dark Down 35.2 232.0 Up 07:06:07 - 07:36:07 5650
Ellensburg 07:20:48 -57.2 Dark Down 34.6 235.6 Up 07:05:48 - 07:35:48 5635
Pasco 07:20:40 -58.2 Dark Down 34.2 237.4 Up 07:05:40 - 07:35:40 5627
PNWRO 07:20:35 -58.5 Dark Down 34.3 237.8 Up 07:05:35 - 07:35:35 5619
Yakima 07:20:45 -57.5 Dark Down 34.9 235.9 Up 07:05:45 - 07:35:45 5611
Toppenish/White Swan 07:20:43 -57.8 Dark Down 34.9 236.1 Up 07:05:43 - 07:35:43 5603
Niwot 07:19:13 -66.1 Dark Down 27.8 252.7 Low 07:04:13 - 07:34:13 5599
SwRI 07:19:13 -66.2 Dark Down 27.9 252.6 Low 07:04:13 - 07:34:13 5590
Goldendale 07:20:43 -58.1 Dark Down 35.5 236.0 Up 07:05:43 - 07:35:43 5560
The Dalles 07:20:42 -58.2 Dark Down 35.8 235.8 Up 07:05:42 - 07:35:42 5537
Maupin 07:20:39 -58.6 Dark Down 36.0 236.1 Up 07:05:39 - 07:35:39 5515
Redmond 07:20:35 -59.4 Dark Down 36.5 236.6 Up 07:05:35 - 07:35:35 5459
Sisters 07:20:36 -59.2 Dark Down 36.8 236.2 Up 07:05:36 - 07:35:36 5450
Bend 07:20:35 -59.5 Dark Down 36.7 236.6 Up 07:05:35 - 07:35:35 5442
Oregon Observatory 07:20:33 -59.6 Dark Down 36.9 236.6 Up 07:05:33 - 07:35:33 5428
La Pine/Gilchrist 07:20:32 -59.8 Dark Down 37.1 236.6 Up 07:05:32 - 07:35:32 5414
North Lake 07:20:27 -60.4 Dark Down 37.0 237.5 Up 07:05:27 - 07:35:27 5403
Paisley 07:20:23 -61.0 Dark Down 37.0 238.2 Up 07:05:23 - 07:35:23 5377
Lakeview 07:20:19 -61.5 Dark Down 37.2 238.7 Up 07:05:19 - 07:35:19 5350
Klamath Falls 07:20:26 -60.9 Dark Down 38.1 237.3 Up 07:05:26 - 07:35:26 5315
Cedarville 07:20:14 -62.1 Dark Down 37.4 239.2 Up 07:05:14 - 07:35:14 5313
Fall River/Burney 07:20:17 -62.1 Dark Down 38.5 238.4 Up 07:05:17 - 07:35:17 5248
Susanville 07:20:10 -62.9 Dark Down 38.3 239.5 Up 07:05:10 - 07:35:10 5227
Gimple 07:20:11 -63.0 Dark Down 38.6 239.5 Up 07:05:11 - 07:35:11 5202
Greenville 07:20:10 -63.0 Dark Down 38.7 239.4 Up 07:05:10 - 07:35:10 5200
Portola 07:20:06 -63.5 Dark Down 38.5 240.1 Up 07:05:06 - 07:35:06 5191
Reno 07:20:02 -63.9 Dark Down 38.2 240.9 Up 07:05:02 - 07:35:02 5191
Quincy 07:20:09 -63.2 Dark Down 38.8 239.5 Up 07:05:09 - 07:35:09 5186
Yerington 07:19:57 -64.7 Dark Down 38.1 241.8 Up 07:04:57 - 07:34:57 5172
Carson City 07:20:01 -64.3 Dark Down 38.4 241.1 Up 07:05:01 - 07:35:01 5168
Tonopah 07:19:43 -66.2 Dark Down 37.2 244.2 Up 07:04:43 - 07:34:43 5162
Hawthorne 07:19:52 -65.3 Dark Down 37.9 242.6 Up 07:04:52 - 07:34:52 5155
Gardnerville 07:19:58 -64.5 Dark Down 38.5 241.3 Up 07:04:58 - 07:34:58 5152
Lee Vining 07:19:51 -65.6 Dark Down 38.5 242.6 Up 07:04:51 - 07:34:51 5103
Indian Springs 07:19:30 -68.0 Dark Down 36.7 246.4 Up 07:04:30 - 07:34:30 5101
Beatty 07:19:36 -67.4 Dark Down 37.4 245.3 Up 07:04:36 - 07:34:36 5094
Henderson 07:19:22 -68.7 Dark Down 36.4 247.4 Up 07:04:22 - 07:34:22 5082
Bishop 07:19:43 -66.4 Dark Down 38.3 243.6 Up 07:04:43 - 07:34:43 5081
Patrick 07:19:14 -69.7 Dark Down 35.9 248.7 Up 07:04:14 - 07:34:14 5069
DCO 07:19:10 -70.1 Dark Down 35.4 249.4 Up 07:04:10 - 07:34:10 5066
Kingman/Dolan Springs 07:19:14 -69.8 Dark Down 36.1 248.7 Up 07:04:14 - 07:34:14 5048
Searchlight/Boulder City 07:19:19 -69.3 Dark Down 36.6 247.8 Up 07:04:19 - 07:34:19 5043
Laughlin/Bullhead City 07:19:16 -69.7 Dark Down 36.5 248.3 Up 07:04:16 - 07:34:16 5031
Mohave Valley 07:19:15 -69.9 Dark Down 36.6 248.5 Up 07:04:15 - 07:34:15 5012
George/Scottsdale 07:18:58 -71.8 Dark Down 34.9 251.3 Up 07:03:58 - 07:33:58 5002
Lake Havasu City 07:19:11 -70.4 Dark Down 36.5 248.9 Up 07:04:11 - 07:34:11 4990
Parker 07:19:09 -70.7 Dark Down 36.7 249.2 Up 07:04:09 - 07:34:09 4965
Blythe 07:19:07 -71.1 Dark Down 37.1 249.3 Up 07:04:07 - 07:34:07 4918
CPSLO 07:19:42 -67.1 Dark Down 40.9 243.1 Up 07:04:42 - 07:34:42 4867
Idyllwild 07:19:17 -70.1 Dark Down 38.6 247.6 Up 07:04:17 - 07:34:17 4867
Calipatria 07:19:08 -71.1 Dark Down 38.0 248.9 Up 07:04:08 - 07:34:08 4855
Yuma 07:19:02 -71.9 Dark Down 37.4 249.9 Up 07:04:02 - 07:34:02 4848
Wildwood 07:19:26 -69.0 Dark Down 39.9 245.8 Up 07:04:26 - 07:34:26 4838

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 15874, (2022/02/04 07:22UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  7.89  92
Bellatrix      05:25:07.8 +06:20:58  1.6  0.71  84
PPM 148872     05:23:31.0 +05:19:23  6.2  0.39  84
PPM 148873     05:23:34.5 +05:49:17  8.3  0.21  84
PPM 148896     05:24:28.9 +05:49:39 10.4  0.17  84
15874          05:24:10.8 +05:40:44 14.1        84
Positions are for J2000

Event circumstances last updated at 2020/02/24 22:31:26 UT

Marc W. Buie, Southwest Research Institute

RECON