RECON: TNO occultation with 07TK422

Event between 07TK422 and star GA1060:00346234 with event index number of 1196256

Geocentric closest approach at 2022/11/18 10:33:46 UTC

J2000 position of star is 03:23:03.2 +17:51:38
Equinox of date position of star is 03:24:08.7 +17:55:41
Stellar brightness G=16.4, use SENSEUP=128
Star is 114 degrees from the moon. Moon is 32% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 24.3 AU from the Sun and 23.3 AU from the Earth.
The TNO is moving 24.5 km/sec on the sky relative to the star, or, 5.2 arcsec/hr.
The 1-sigma error in the time of the event is 65 seconds.
The 1-sigma cross-track error in the shadow position is 981 km.
The sky-plane scale is 16899.5 km/arcsec.

The TNO has an absolute magnitude Hv=9.1
Diameter=93.3 km assuming a 5% albedo -- 3.8 sec chord
Diameter=38.1 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 07TK422, (2022/11/18 10:34UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:14.2 +16:33:13  0.8 17.45  98
Menkar         03:03:28.7 +04:10:42  2.5 14.68 123
63Tau2Ari      03:24:04.5 +20:49:20  6.2  2.88 113
PPM 119006     03:21:17.1 +17:34:58  8.2  0.81 115
PPM 119035     03:23:50.6 +17:48:20  9.1  0.18 114
07TK422        03:24:21.2 +17:56:27 16.4       114
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 5.0 sigma about the mid-time.
The median site spacing is 24.0 km RECON observability=1.0 and success probability=46.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 10:31:15 -44.7 Dark Up 41.9 244.9 Up 10:25:22 - 10:37:09 509
Summerland 10:31:15 -45.0 Dark Up 42.1 244.8 Up 10:25:22 - 10:37:09 478
Penticton 10:31:15 -44.9 Dark Up 42.1 245.0 Up 10:25:21 - 10:37:08 472
Okanagan Falls 10:31:15 -45.0 Dark Up 42.2 245.1 Up 10:25:21 - 10:37:08 453
Oliver 10:31:14 -45.1 Dark Up 42.3 245.3 Up 10:25:21 - 10:37:08 437
Anarchist Mountain Observatory 10:31:14 -45.1 Dark Up 42.2 245.6 Up 10:25:20 - 10:37:07 421
Oroville 10:31:14 -45.2 Dark Up 42.3 245.6 Up 10:25:20 - 10:37:07 413
Tonasket 10:31:13 -45.3 Dark Up 42.4 245.8 Up 10:25:20 - 10:37:07 390
Okanogan 10:31:13 -45.5 Dark Up 42.6 245.9 Up 10:25:20 - 10:37:07 356
Brewster 10:31:13 -45.7 Dark Up 42.8 246.0 Up 10:25:20 - 10:37:07 328
Manson/Chelan 10:31:14 -46.0 Dark Up 43.2 245.8 Up 10:25:20 - 10:37:07 306
Entiat 10:31:14 -46.2 Dark Up 43.3 245.9 Up 10:25:20 - 10:37:07 284
Wenatchee 10:31:14 -46.4 Dark Up 43.5 246.0 Up 10:25:20 - 10:37:07 258
Ellensburg 10:31:14 -46.7 Dark Up 43.8 246.2 Up 10:25:20 - 10:37:07 216
Yakima 10:31:13 -46.9 Dark Up 43.9 246.5 Up 10:25:20 - 10:37:07 175
Toppenish/White Swan 10:31:12 -46.8 Dark Up 43.9 246.9 Up 10:25:19 - 10:37:06 153
Pasco 10:31:09 -46.1 Dark Up 43.2 248.2 Up 10:25:16 - 10:37:03 145
PNWRO 10:31:08 -46.0 Dark Up 43.1 248.6 Up 10:25:15 - 10:37:02 120
George/Umatilla 10:31:09 -46.4 Dark Up 43.4 248.3 Up 10:25:16 - 10:37:03 110
Goldendale 10:31:13 -47.3 Dark Up 44.4 246.9 Up 10:25:19 - 10:37:06 96
The Dalles 10:31:13 -47.7 Dark Up 44.7 246.8 Up 10:25:20 - 10:37:07 72
Maupin 10:31:13 -47.8 Dark Up 44.8 247.3 Up 10:25:19 - 10:37:06 29
Madras/Culver 10:31:12 -48.0 Dark Up 45.1 247.7 Up 10:25:19 - 10:37:06 -27
Sisters 10:31:13 -48.5 Dark Up 45.5 247.6 Up 10:25:19 - 10:37:06 -62
Redmond 10:31:12 -48.2 Dark Up 45.2 248.0 Up 10:25:18 - 10:37:05 -64
Bend 10:31:12 -48.4 Dark Up 45.4 248.1 Up 10:25:18 - 10:37:05 -86
Oregon Observatory 10:31:12 -48.5 Dark Up 45.6 248.1 Up 10:25:18 - 10:37:05 -105
La Pine/Gilchrist 10:31:12 -48.7 Dark Up 45.7 248.2 Up 10:25:18 - 10:37:05 -126
North Lake 10:31:10 -48.4 Dark Up 45.4 249.2 Up 10:25:16 - 10:37:03 -169
Paisley 10:31:08 -48.4 Dark Up 45.4 250.1 Up 10:25:15 - 10:37:02 -226
Chiloquin 10:31:12 -49.3 Dark Up 46.3 249.0 Up 10:25:18 - 10:37:05 -242
Klamath Falls 10:31:11 -49.4 Dark Up 46.4 249.4 Up 10:25:18 - 10:37:05 -278
Lakeview 10:31:07 -48.4 Dark Up 45.4 250.7 Up 10:25:14 - 10:37:01 -278
Tulelake 10:31:10 -49.3 Dark Up 46.3 249.9 Up 10:25:16 - 10:37:03 -305
Cedarville 10:31:06 -48.5 Dark Up 45.5 251.5 Up 10:25:13 - 10:37:00 -346
Niwot 10:30:31 -37.9 Dark Up 34.8 264.4 Up 10:24:37 - 10:36:24 -388
SwRI 10:30:31 -38.0 Dark Up 34.9 264.4 Up 10:24:37 - 10:36:24 -400
Fall River/Burney 10:31:09 -49.6 Dark Up 46.5 250.9 Up 10:25:15 - 10:37:02 -401
Susanville 10:31:06 -49.3 Dark Up 46.2 252.2 Up 10:25:13 - 10:37:00 -465
Gimple 10:31:07 -49.5 Dark Up 46.4 252.3 Up 10:25:13 - 10:37:00 -495
Greenville 10:31:07 -49.6 Dark Up 46.5 252.2 Up 10:25:13 - 10:37:00 -495
Quincy 10:31:07 -49.6 Dark Up 46.6 252.4 Up 10:25:13 - 10:37:00 -516
Portola 10:31:05 -49.3 Dark Up 46.3 252.9 Up 10:25:12 - 10:36:59 -528
Reno 10:31:03 -48.9 Dark Up 45.9 253.8 Up 10:25:10 - 10:36:57 -555
Carson City 10:31:03 -49.0 Dark Up 45.9 254.1 Up 10:25:09 - 10:36:56 -593
Yerington 10:31:01 -48.6 Dark Up 45.5 254.9 Up 10:25:07 - 10:36:54 -611
Gardnerville 10:31:02 -49.1 Dark Up 46.0 254.4 Up 10:25:09 - 10:36:56 -618
Hawthorne 10:30:59 -48.3 Dark Up 45.2 255.7 Up 10:25:06 - 10:36:53 -658
Tonopah 10:30:55 -47.4 Dark Up 44.3 257.3 Up 10:25:01 - 10:36:48 -702
Lee Vining 10:31:00 -48.9 Dark Up 45.8 255.9 Up 10:25:06 - 10:36:53 -721
Bishop 10:30:57 -48.4 Dark Up 45.3 257.1 Up 10:25:04 - 10:36:51 -782
Beatty 10:30:53 -47.3 Dark Up 44.2 258.8 Up 10:24:59 - 10:36:46 -823
Indian Springs 10:30:50 -46.5 Dark Up 43.4 259.9 Up 10:24:56 - 10:36:43 -852
Lone Pine 10:30:56 -48.4 Dark Up 45.2 258.1 Up 10:25:02 - 10:36:49 -862
Henderson 10:30:47 -46.1 Dark Up 42.9 260.9 Up 10:24:54 - 10:36:41 -906
Patrick 10:30:44 -45.3 Dark Up 42.1 262.2 Up 10:24:50 - 10:36:37 -966
Searchlight/Boulder City 10:30:47 -46.1 Dark Up 43.0 261.4 Up 10:24:53 - 10:36:40 -967
Kingman/Dolan Springs 10:30:44 -45.5 Dark Up 42.3 262.3 Up 10:24:51 - 10:36:38 -991
DCO 10:30:42 -44.8 Dark Up 41.6 262.9 Up 10:24:48 - 10:36:35 -994
Laughlin/Bullhead City 10:30:46 -45.9 Dark Up 42.7 261.9 Up 10:24:52 - 10:36:39 -997
CPSLO 10:31:02 -50.7 Dark Up 47.6 257.4 Up 10:25:08 - 10:36:55 -1011
Mohave Valley 10:30:45 -45.9 Dark Up 42.8 262.2 Up 10:24:52 - 10:36:39 -1026
Lake Havasu City 10:30:44 -45.8 Dark Up 42.6 262.7 Up 10:24:51 - 10:36:38 -1068
Parker 10:30:44 -45.8 Dark Up 42.7 263.1 Up 10:24:50 - 10:36:37 -1106
Wildwood 10:30:55 -49.3 Dark Up 46.2 260.2 Up 10:25:02 - 10:36:49 -1135
Blythe 10:30:44 -46.1 Dark Up 43.0 263.3 Up 10:24:51 - 10:36:38 -1165
Idyllwild 10:30:50 -47.8 Dark Up 44.7 261.9 Up 10:24:56 - 10:36:43 -1165
Calipatria 10:30:46 -46.9 Dark Up 43.8 263.2 Up 10:24:52 - 10:36:39 -1224
Yuma 10:30:43 -46.2 Dark Up 43.1 264.2 Up 10:24:50 - 10:36:37 -1265

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 07TK422, (2022/11/18 10:34UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 17.45  98
Menkar         03:02:16.8 +04:05:21  2.5 14.68 123
63Tau2Ari      03:22:45.2 +20:44:31  6.2  2.88 113
PPM 119006     03:19:59.3 +17:30:04  8.2  0.81 115
PPM 119035     03:22:32.6 +17:43:30  9.1  0.18 114
07TK422        03:23:03.2 +17:51:38 16.4       114
Positions are for J2000

Event circumstances last updated at 2019/03/19 01:44:37 UT

Marc W. Buie, Southwest Research Institute

RECON