RECON: TNO occultation with 10TT195

Event between 10TT195 and star GA1120:00572571 with event index number of 1567229

Geocentric closest approach at 2021/10/23 08:12:55 UTC

J2000 position of star is 04:09:08.2 +22:34:35
Equinox of date position of star is 04:10:17.8 +22:37:36
Stellar brightness G=13.2, use SENSEUP=32
Star is 5 degrees from the moon. Moon is 93% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 43.2 AU from the Sun and 42.4 AU from the Earth.
The TNO is moving 20.6 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 304 seconds.
The 1-sigma cross-track error in the shadow position is 3391 km.
The sky-plane scale is 30766.8 km/arcsec.

The TNO has an absolute magnitude Hv=6.0
Diameter=382.0 km assuming a 5% albedo -- 18.6 sec chord
Diameter=155.9 km assuming a 30% albedo -- 7.6 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 10TT195, (2021/10/23 08:13UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:10.5 +16:33:05  0.8  8.75  11
44Zet Per      03:55:30.5 +31:56:48  2.8  9.88  12
PPM 093337     04:14:09.1 +22:28:03  6.1  0.87   5
PPM 093308     04:12:26.6 +22:52:50 10.0  0.53   5
PPM 093277     04:09:55.9 +22:18:42 11.5  0.34   4
10TT195        04:10:26.0 +22:37:57 13.2         5
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 3.0 sigma about the mid-time.
The median site spacing is 22.0 km RECON observability=1.0 and success probability=11.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 08:14:04 -51.1 Dark Up 55.8 133.5 Up 07:59:04 - 08:29:04 -2725
Summerland 08:14:04 -51.4 Dark Up 55.9 132.8 Up 07:59:04 - 08:29:04 -2748
Penticton 08:14:04 -51.4 Dark Up 56.0 132.9 Up 07:59:04 - 08:29:04 -2756
Okanagan Falls 08:14:04 -51.6 Dark Up 56.1 132.6 Up 07:59:04 - 08:29:04 -2773
Oliver 08:14:04 -51.8 Dark Up 56.2 132.5 Up 07:59:04 - 08:29:04 -2789
Anarchist Mountain Observatory 08:14:04 -51.9 Dark Up 56.5 132.6 Up 07:59:04 - 08:29:04 -2809
Oroville 08:14:04 -52.0 Dark Up 56.5 132.4 Up 07:59:04 - 08:29:04 -2814
Tonasket 08:14:04 -52.2 Dark Up 56.6 132.1 Up 07:59:04 - 08:29:04 -2836
Okanogan 08:14:04 -52.6 Dark Up 56.8 131.5 Up 07:59:04 - 08:29:04 -2866
Brewster 08:14:04 -52.9 Dark Up 56.9 130.9 Up 07:59:04 - 08:29:04 -2889
Manson/Chelan 08:14:04 -53.1 Dark Up 56.8 130.2 Up 07:59:04 - 08:29:04 -2903
Wenatchee 08:14:04 -53.6 Dark Up 57.0 129.4 Up 07:59:04 - 08:29:04 -2946
Ellensburg 08:14:04 -54.0 Dark Up 57.2 128.6 Up 07:59:04 - 08:29:04 -2983
Yakima 08:14:04 -54.4 Dark Up 57.4 128.0 Up 07:59:04 - 08:29:04 -3023
Toppenish/White Swan 08:14:04 -54.6 Dark Up 57.6 128.0 Up 07:59:04 - 08:29:04 -3047
Pasco 08:14:04 -54.6 Dark Up 58.4 129.7 Up 07:59:04 - 08:29:04 -3077
The Dalles 08:14:23 -55.5 Dark Up 57.7 126.0 Up 07:59:23 - 08:29:23 -3088
Goldendale 08:14:04 -55.2 Dark Up 57.7 126.7 Up 07:59:04 - 08:29:04 -3096
PNWRO 08:14:04 -54.8 Dark Up 58.7 129.7 Up 07:59:04 - 08:29:04 -3104
George/Umatilla 08:14:04 -54.9 Dark Up 58.5 128.9 Up 07:59:04 - 08:29:04 -3106
Maupin 08:14:23 -55.9 Dark Up 58.0 125.6 Up 07:59:23 - 08:29:23 -3130
Madras/Culver 08:14:25 -56.4 Dark Up 58.3 124.9 Up 07:59:25 - 08:29:25 -3181
Sisters 08:14:27 -56.8 Dark Up 58.2 123.8 Up 07:59:27 - 08:29:27 -3203
Redmond 08:14:25 -56.8 Dark Up 58.5 124.3 Up 07:59:25 - 08:29:25 -3214
Bend 08:14:26 -57.0 Dark Up 58.5 123.9 Up 07:59:26 - 08:29:26 -3232
Oregon Observatory 08:14:28 -57.2 Dark Up 58.5 123.4 Up 07:59:28 - 08:29:28 -3246
La Pine/Gilchrist 08:14:28 -57.4 Dark Up 58.6 123.1 Up 07:59:28 - 08:29:28 -3264
North Lake 08:14:27 -57.8 Dark Up 59.2 123.3 Up 07:59:27 - 08:29:27 -3319
Chiloquin 08:14:32 -58.6 Dark Up 59.0 121.1 Up 07:59:32 - 08:29:32 -3363
Paisley 08:14:27 -58.2 Dark Up 59.7 123.0 Up 07:59:27 - 08:29:27 -3380
Klamath Falls 08:14:32 -58.9 Dark Up 59.2 120.7 Up 07:59:32 - 08:29:32 -3398
Tulelake 08:14:32 -59.1 Dark Up 59.6 120.7 Up 07:59:32 - 08:29:32 -3431
Lakeview 08:14:27 -58.7 Dark Up 60.1 122.5 Up 07:59:27 - 08:29:27 -3434
Cedarville 08:14:28 -59.3 Dark Up 60.6 121.8 Up 07:59:28 - 08:29:28 -3502
Fall River/Burney 08:14:33 -60.0 Dark Up 60.1 119.5 Up 07:59:33 - 08:29:33 -3522
Susanville 08:14:32 -60.5 Dark Up 60.9 119.5 Up 07:59:32 - 08:29:32 -3601
Greenville 08:14:34 -60.8 Dark Up 60.8 118.7 Up 07:59:34 - 08:29:34 -3621
Gimple 08:14:34 -60.8 Dark Up 60.9 118.8 Up 07:59:34 - 08:29:34 -3624
Quincy 08:14:34 -61.0 Dark Up 60.9 118.3 Up 07:59:34 - 08:29:34 -3642
Portola 08:14:32 -61.0 Dark Up 61.3 118.8 Up 07:59:32 - 08:29:32 -3665
Reno 08:14:31 -61.1 Dark Up 61.8 119.2 Up 07:59:31 - 08:29:31 -3706
Carson City 08:14:32 -61.5 Dark Up 62.0 118.6 Up 07:59:32 - 08:29:32 -3742
Gardnerville 08:14:32 -61.7 Dark Up 62.2 118.3 Up 07:59:32 - 08:29:32 -3768
Yerington 08:14:30 -61.5 Dark Up 62.6 119.1 Up 07:59:30 - 08:29:30 -3776
Hawthorne 08:14:29 -61.8 Dark Up 63.1 119.1 Up 07:59:29 - 08:29:29 -3834
Lee Vining 08:14:31 -62.5 Dark Up 63.1 117.4 Up 07:59:31 - 08:29:31 -3880
Tonopah 08:14:24 -61.9 Dark Up 64.3 120.2 Up 07:59:24 - 08:29:24 -3913
SwRI 08:13:35 -55.5 Dark Up 69.7 145.8 Up 07:58:35 - 08:28:35 -3936
Bishop 08:14:30 -62.9 Dark Up 63.9 117.3 Up 07:59:30 - 08:29:30 -3957
Beatty 08:14:25 -62.8 Dark Up 65.2 118.7 Up 07:59:25 - 08:29:25 -4041
Lone Pine 08:14:30 -63.5 Dark Up 64.4 116.4 Up 07:59:30 - 08:29:30 -4042
Indian Springs 08:14:04 -62.8 Dark Up 66.1 119.6 Up 07:59:04 - 08:29:04 -4113
CPSLO 08:14:42 -65.4 Dark Up 63.1 110.8 Up 07:59:42 - 08:29:42 -4114
Henderson 08:14:04 -63.0 Dark Up 66.8 119.5 Up 07:59:04 - 08:29:04 -4180
Searchlight/Boulder City 08:14:04 -63.5 Dark Up 67.1 118.4 Up 07:59:04 - 08:29:04 -4241
Patrick 08:14:04 -63.1 Dark Up 67.9 120.0 Up 07:59:04 - 08:29:04 -4263
Laughlin/Bullhead City 08:14:04 -63.6 Dark Up 67.5 118.3 Up 07:59:04 - 08:29:04 -4278
Kingman/Dolan Springs 08:14:04 -63.4 Dark Up 67.9 119.2 Up 07:59:04 - 08:29:04 -4284
Wildwood 08:14:37 -66.0 Dark Up 65.1 110.9 Up 07:59:37 - 08:29:37 -4287
Mohave Valley 08:14:04 -63.9 Dark Up 67.7 117.8 Up 07:59:04 - 08:29:04 -4307
Lake Havasu City 08:14:04 -64.1 Dark Up 68.0 117.3 Up 07:59:04 - 08:29:04 -4353
Idyllwild 08:14:30 -65.7 Dark Up 66.6 112.4 Up 07:59:30 - 08:29:30 -4368
Parker 08:14:04 -64.4 Dark Up 68.2 116.5 Up 07:59:04 - 08:29:04 -4391
Blythe 08:14:04 -65.0 Dark Up 68.2 114.9 Up 07:59:04 - 08:29:04 -4443
Calipatria 08:14:26 -65.8 Dark Up 67.8 112.6 Up 07:59:26 - 08:29:26 -4458
Yuma 08:14:23 -65.7 Dark Up 68.6 112.8 Up 07:59:23 - 08:29:23 -4523

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 10TT195, (2021/10/23 08:13UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  8.75  11
44Zet Per      03:54:07.9 +31:53:01  2.8  9.88  12
PPM 093337     04:12:51.3 +22:24:47  6.1  0.87   5
PPM 093308     04:11:08.6 +22:49:31 10.0  0.53   5
PPM 093277     04:08:38.2 +22:15:19 11.5  0.34   4
10TT195        04:09:08.2 +22:34:35 13.2         5
Positions are for J2000

Event circumstances last updated at 2019/07/03 21:59:21 UT

Marc W. Buie, Southwest Research Institute

RECON