RECON: TNO occultation with 15875

Event between (15875) 96TP66 and star GA1160:01938563 with event index number of 1105624

Geocentric closest approach at 2022/02/10 03:40:16 UTC

J2000 position of star is 06:06:48.0 +27:27:51
Equinox of date position of star is 06:08:04.1 +27:27:38
Stellar brightness G=15.6, use SENSEUP=128
Star is 23 degrees from the moon. Moon is 65% illuminated.
TNO apparent brightness V=24.9

[RECON map]
TNO is 30.2 AU from the Sun and 29.6 AU from the Earth.
The TNO is moving 14.1 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 790 seconds.
The 1-sigma cross-track error in the shadow position is 1768 km.
The sky-plane scale is 21433.4 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=239.9 km assuming a 5% albedo -- 4.3 sec chord
Diameter=97.9 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 15875, (2022/02/10 03:40UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:22.2 +07:24:34  0.4 20.25  26
Alnath         05:27:41.5 +28:37:27  1.6  9.01  15
PPM 095226     06:02:23.9 +27:34:18  6.0  1.29  22
PPM 095434     06:09:03.5 +27:51:20  8.4  0.44  23
PPM 095446     06:09:22.4 +27:25:23  8.6  0.27  23
PPM 095396     06:08:00.1 +27:37:48 11.9  0.17  23
15875          06:08:11.3 +27:27:37 15.6        24
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 23.9 km RECON observability=1.0 and success probability=27.7%
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 03:41:12 -25.3 Dark Up 64.3 146.8 Up 03:26:12 - 03:56:12 1898
Kelowna 03:41:14 -25.3 Dark Up 64.6 146.1 Up 03:26:14 - 03:56:14 1863
Peachland 03:41:15 -25.1 Dark Up 64.6 145.4 Up 03:26:15 - 03:56:15 1858
Summerland 03:41:15 -25.2 Dark Up 64.7 145.4 Up 03:26:15 - 03:56:15 1841
Penticton 03:41:15 -25.3 Dark Up 64.8 145.5 Up 03:26:15 - 03:56:15 1833
Victoria 03:41:36 -22.9 Dark Up 64.1 137.3 Up 03:26:36 - 03:56:36 1807
Oliver 03:41:16 -25.3 Dark Up 65.1 145.1 Up 03:26:16 - 03:56:16 1798
Anarchist Mountain Observatory 03:41:15 -25.4 Dark Up 65.3 145.3 Up 03:26:15 - 03:56:15 1778
Tonasket 03:41:16 -25.4 Dark Up 65.6 144.7 Up 03:26:16 - 03:56:16 1749
Okanogan 03:41:18 -25.4 Dark Up 65.8 144.0 Up 03:26:18 - 03:56:18 1718
Brewster 03:41:20 -25.3 Dark Up 65.9 143.3 Up 03:26:20 - 03:56:20 1695
Manson/Chelan 03:41:22 -25.1 Dark Up 66.0 142.3 Up 03:26:22 - 03:56:22 1681
Entiat 03:41:23 -25.1 Dark Up 66.1 141.9 Up 03:26:23 - 03:56:23 1661
Wenatchee 03:41:24 -25.0 Dark Up 66.3 141.3 Up 03:26:24 - 03:56:24 1638
Ellensburg 03:41:24 -24.9 Dark Up 66.5 140.3 Up 03:26:24 - 03:56:24 1601
Yakima 03:41:24 -24.9 Dark Up 66.8 139.7 Up 03:26:24 - 03:56:24 1561
Toppenish/White Swan 03:41:24 -25.1 Dark Up 67.0 139.7 Up 03:26:24 - 03:56:24 1536
Pasco 03:41:21 -26.0 Dark Up 67.7 142.0 Up 03:26:21 - 03:56:21 1499
Goldendale 03:41:30 -24.8 Dark Up 67.3 138.0 Up 03:26:30 - 03:56:30 1489
The Dalles 03:41:33 -24.6 Dark Up 67.3 137.0 Up 03:26:33 - 03:56:33 1473
PNWRO 03:41:20 -26.1 Dark Up 68.0 142.1 Up 03:26:20 - 03:56:20 1470
Maupin 03:41:33 -24.7 Dark Up 67.6 136.5 Up 03:26:33 - 03:56:33 1429
Sisters 03:41:38 -24.4 Dark Up 68.0 134.0 Up 03:26:38 - 03:56:38 1351
Redmond 03:41:36 -24.7 Dark Up 68.2 134.8 Up 03:26:36 - 03:56:36 1340
Bend 03:41:37 -24.6 Dark Up 68.3 134.1 Up 03:26:37 - 03:56:37 1322
Oregon Observatory 03:41:39 -24.6 Dark Up 68.4 133.6 Up 03:26:39 - 03:56:39 1307
La Pine/Gilchrist 03:41:39 -24.5 Dark Up 68.5 133.1 Up 03:26:39 - 03:56:39 1287
North Lake 03:41:37 -25.0 Dark Up 69.1 133.4 Up 03:26:37 - 03:56:37 1231
Paisley 03:41:37 -25.3 Dark Up 69.7 133.1 Up 03:26:37 - 03:56:37 1167
Klamath Falls 03:41:44 -24.4 Dark Up 69.3 129.8 Up 03:26:44 - 03:56:44 1145
Lakeview 03:41:37 -25.5 Dark Up 70.1 132.5 Up 03:26:37 - 03:56:37 1111
Cedarville 03:41:38 -25.6 Dark Up 70.6 131.5 Up 03:26:38 - 03:56:38 1040
Fall River/Burney 03:41:45 -24.8 Dark Up 70.3 128.0 Up 03:26:45 - 03:56:45 1016
Susanville 03:41:43 -25.3 Dark Up 71.1 128.1 Up 03:26:43 - 03:56:43 935
Greenville 03:41:45 -25.1 Dark Up 71.1 126.8 Up 03:26:45 - 03:56:45 913
Gimple 03:41:45 -25.2 Dark Up 71.1 127.0 Up 03:26:45 - 03:56:45 911
Quincy 03:41:46 -25.1 Dark Up 71.2 126.4 Up 03:26:46 - 03:56:46 892
Portola 03:41:43 -25.5 Dark Up 71.6 127.0 Up 03:26:43 - 03:56:43 869
Reno 03:41:40 -26.0 Dark Up 72.1 127.7 Up 03:26:40 - 03:56:40 827
Carson City 03:41:41 -26.1 Dark Up 72.4 126.8 Up 03:26:41 - 03:56:41 789
Gardnerville 03:41:41 -26.1 Dark Up 72.5 126.3 Up 03:26:41 - 03:56:41 763
Yerington 03:41:38 -26.5 Dark Up 72.9 127.7 Up 03:26:38 - 03:56:38 756
Hawthorne 03:41:36 -27.0 Dark Up 73.5 127.6 Up 03:26:36 - 03:56:36 696
Lee Vining 03:41:40 -26.6 Dark Up 73.5 125.0 Up 03:26:40 - 03:56:40 647
Niwot 03:40:15 -36.8 Dark Up 77.3 173.6 Up 03:25:15 - 03:55:15 643
SwRI 03:40:16 -36.8 Dark Up 77.4 173.1 Up 03:25:16 - 03:55:16 633
Tonopah 03:41:24 -28.1 Dark Up 74.6 129.5 Up 03:26:24 - 03:56:24 621
Bishop 03:41:37 -27.2 Dark Up 74.3 124.9 Up 03:26:37 - 03:56:37 569
Beatty 03:41:24 -28.5 Dark Up 75.6 127.2 Up 03:26:24 - 03:56:24 490
Indian Springs 03:41:23 -29.4 Dark Up 76.5 129.0 Up 03:26:23 - 03:56:23 430
CPSLO 03:41:54 -25.5 Dark Up 73.8 114.3 Up 03:26:54 - 03:56:54 401
Henderson 03:41:19 -30.0 Dark Up 77.2 129.1 Up 03:26:19 - 03:56:19 360
Searchlight/Boulder City 03:41:20 -30.0 Dark Up 77.6 127.2 Up 03:26:20 - 03:56:20 297
Patrick 03:41:14 -30.9 Dark Up 78.3 130.1 Up 03:26:14 - 03:56:14 272
Laughlin/Bullhead City 03:41:18 -30.3 Dark Up 78.0 127.1 Up 03:26:18 - 03:56:18 259
Kingman/Dolan Springs 03:41:15 -30.8 Dark Up 78.3 128.7 Up 03:26:15 - 03:56:15 252
Mohave Valley 03:41:19 -30.4 Dark Up 78.2 126.1 Up 03:26:19 - 03:56:19 230
Wildwood 03:41:45 -27.2 Dark Up 75.8 113.9 Up 03:26:45 - 03:56:45 227
DCO 03:41:10 -31.5 Dark Up 79.0 131.2 Up 03:26:10 - 03:56:10 226
Lake Havasu City 03:41:18 -30.6 Dark Up 78.6 125.2 Up 03:26:18 - 03:56:18 182
Idyllwild 03:41:34 -28.7 Dark Up 77.3 116.2 Up 03:26:34 - 03:56:34 148
Parker 03:41:18 -30.6 Dark Up 78.8 123.9 Up 03:26:18 - 03:56:19 143
Blythe 03:41:21 -30.4 Dark Up 78.9 120.8 Up 03:26:21 - 03:56:21 93
Calipatria 03:41:24 -29.7 Dark Up 78.5 116.3 Up 03:26:24 - 03:56:24 81
George/Scottsdale 03:41:04 -32.6 Dark Up 80.7 129.8 Up 03:26:04 - 03:56:04 53
Yuma 03:41:23 -30.4 Dark Up 79.3 116.5 Up 03:26:23 - 03:56:23 -6

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 15875, (2022/02/10 03:40UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 20.25  26
Alnath         05:26:17.5 +28:36:23  1.6  9.01  15
PPM 095226     06:01:00.4 +27:34:21  6.0  1.29  22
PPM 095434     06:07:39.9 +27:51:36  8.4  0.44  23
PPM 095446     06:07:59.1 +27:25:40  8.6  0.27  23
PPM 095396     06:06:36.7 +27:38:03 11.9  0.17  23
15875          06:06:48.0 +27:27:51 15.6        23
Positions are for J2000

Event circumstances last updated at 2020/03/12 23:02:27 UT

Marc W. Buie, Southwest Research Institute

RECON