RECON: TNO occultation with 14UN228

Event between 14UN228 and star GA1120:00251928 with event index number of 1672345

Geocentric closest approach at 2020/09/22 06:44:13 UTC

J2000 position of star is 02:12:21.7 +22:13:14
Equinox of date position of star is 02:13:28.9 +22:18:48
Stellar brightness G=15.0, use SENSEUP=128
Star is 150 degrees from the moon. Moon is 31% illuminated.
TNO apparent brightness V=23.5

[RECON map]
TNO is 38.5 AU from the Sun and 37.7 AU from the Earth.
The TNO is moving 19.2 km/sec on the sky relative to the star, or, 2.5 arcsec/hr.
The 1-sigma error in the time of the event is 248 seconds.
The 1-sigma cross-track error in the shadow position is 4402 km.
The sky-plane scale is 27366.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.6
Diameter=184.5 km assuming a 5% albedo -- 9.6 sec chord
Diameter=75.3 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 14UN228, (2020/09/22 06:44UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:06.7 +16:32:58  0.8 34.26 175
Hamal          02:08:20.8 +23:33:34  2.0  1.72 149
17Eta Ari      02:13:58.0 +21:18:27  5.8  1.01 150
PPM 091428     02:12:33.2 +21:28:27  8.1  0.87 150
PPM 091450     02:14:15.0 +22:24:02  9.3  0.19 150
PPM 091435     02:13:12.7 +22:22:57 11.4  0.10 150
14UN228        02:13:31.7 +22:19:02 15.0       150
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 3.6 sigma about the mid-time.
The median site spacing is 21.5 km RECON observability=1.0 and success probability=9.9%
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 06:46:36 -37.9 Dark Down 42.7 107.7 Up 06:31:36 - 07:01:36 -2031
Kelowna 06:46:37 -38.2 Dark Down 42.7 107.2 Up 06:31:37 - 07:01:37 -2058
Victoria 06:46:51 -38.4 Dark Down 40.6 102.5 Up 06:31:51 - 07:01:51 -2065
Summerland 06:46:39 -38.4 Dark Down 42.7 106.8 Up 06:31:39 - 07:01:39 -2074
Penticton 06:46:39 -38.5 Dark Down 42.7 106.9 Up 06:31:39 - 07:01:39 -2082
Oliver 06:46:40 -38.8 Dark Down 42.9 106.6 Up 06:31:40 - 07:01:40 -2111
Anarchist Mountain Observatory 06:46:40 -39.0 Dark Down 43.0 106.6 Up 06:31:40 - 07:01:40 -2130
Tonasket 06:46:42 -39.3 Dark Down 43.1 106.2 Up 06:31:42 - 07:01:42 -2154
Okanogan 06:46:43 -39.6 Dark Down 43.1 105.8 Up 06:31:43 - 07:01:43 -2178
Brewster 06:46:45 -39.8 Dark Down 43.0 105.4 Up 06:31:45 - 07:01:45 -2195
Manson/Chelan 06:46:46 -39.9 Dark Down 42.8 104.9 Up 06:31:46 - 07:01:46 -2202
Entiat 06:46:47 -40.1 Dark Down 42.9 104.6 Up 06:31:47 - 07:01:47 -2219
Wenatchee 06:46:48 -40.3 Dark Down 42.9 104.3 Up 06:31:48 - 07:01:48 -2237
Ellensburg 06:46:51 -40.6 Dark Down 42.8 103.7 Up 06:31:51 - 07:01:51 -2266
Yakima 06:46:52 -41.0 Dark Down 42.9 103.4 Up 06:31:52 - 07:01:52 -2299
Toppenish/White Swan 06:46:53 -41.2 Dark Down 43.1 103.3 Up 06:31:53 - 07:01:53 -2322
Goldendale 06:46:55 -41.6 Dark Down 42.9 102.5 Up 06:31:55 - 07:01:55 -2357
The Dalles 06:46:57 -41.7 Dark Down 42.7 101.9 Up 06:31:57 - 07:01:57 -2366
Pasco 06:46:50 -41.7 Dark Down 43.9 104.3 Up 06:31:50 - 07:01:50 -2367
PNWRO 06:46:50 -42.0 Dark Down 44.2 104.3 Up 06:31:50 - 07:01:50 -2394
Maupin 06:46:59 -42.1 Dark Down 42.9 101.7 Up 06:31:59 - 07:01:59 -2405
Sisters 06:47:03 -42.8 Dark Down 42.7 100.5 Up 06:32:03 - 07:02:03 -2466
Redmond 06:47:02 -42.9 Dark Down 43.0 100.8 Up 06:32:02 - 07:02:02 -2480
Bend 06:47:03 -43.1 Dark Down 42.9 100.5 Up 06:32:03 - 07:02:03 -2494
Oregon Observatory 06:47:04 -43.2 Dark Down 42.9 100.2 Up 06:32:04 - 07:02:04 -2505
La Pine/Gilchrist 06:47:05 -43.4 Dark Down 42.9 100.0 Up 06:32:05 - 07:02:05 -2521
North Lake 06:47:05 -44.0 Dark Down 43.4 100.1 Up 06:32:05 - 07:02:05 -2576
Paisley 06:47:06 -44.6 Dark Down 43.7 99.8 Up 06:32:06 - 07:02:06 -2635
Klamath Falls 06:47:11 -44.6 Dark Down 42.9 98.4 Up 06:32:11 - 07:02:11 -2640
Lakeview 06:47:07 -45.1 Dark Down 44.0 99.5 Up 06:32:07 - 07:02:07 -2685
Cedarville 06:47:09 -45.8 Dark Down 44.2 99.0 Up 06:32:09 - 07:02:09 -2749
Fall River/Burney 06:47:14 -45.8 Dark Down 43.4 97.6 Up 06:32:14 - 07:02:14 -2756
Susanville 06:47:14 -46.6 Dark Down 44.0 97.6 Up 06:32:14 - 07:02:14 -2834
Greenville 06:47:15 -46.8 Dark Down 43.8 97.1 Up 06:32:15 - 07:02:15 -2850
Gimple 06:47:15 -46.8 Dark Down 43.9 97.2 Up 06:32:15 - 07:02:15 -2853
Quincy 06:47:16 -47.0 Dark Down 43.9 96.9 Up 06:32:16 - 07:02:16 -2869
Portola 06:47:15 -47.2 Dark Down 44.3 97.2 Up 06:32:15 - 07:02:15 -2894
Reno 06:47:14 -47.7 Dark Down 44.8 97.4 Up 06:32:14 - 07:02:14 -2938
Carson City 06:47:15 -48.0 Dark Down 44.8 97.0 Up 06:32:15 - 07:02:15 -2972
Gardnerville 06:47:16 -48.3 Dark Down 44.9 96.8 Up 06:32:16 - 07:02:16 -2995
Yerington 06:47:14 -48.4 Dark Down 45.4 97.3 Up 06:32:14 - 07:02:14 -3009
Hawthorne 06:47:14 -49.0 Dark Down 45.8 97.2 Up 06:32:14 - 07:02:14 -3067
Lee Vining 06:47:17 -49.4 Dark Down 45.5 96.3 Up 06:32:17 - 07:02:17 -3105
Tonopah 06:47:12 -49.8 Dark Down 47.0 97.8 Up 06:32:12 - 07:02:12 -3153
Bishop 06:47:17 -50.1 Dark Down 46.2 96.2 Up 06:32:17 - 07:02:17 -3183
Beatty 06:47:14 -51.1 Dark Down 47.5 96.8 Up 06:32:14 - 07:02:14 -3276
Niwot 06:46:27 -49.8 Dark Down 55.4 110.5 Up 06:31:27 - 07:01:27 -3290
SwRI 06:46:28 -49.9 Dark Down 55.4 110.3 Up 06:31:28 - 07:01:28 -3298
CPSLO 06:47:30 -51.2 Dark Down 44.5 92.7 Up 06:32:30 - 07:02:30 -3306
Indian Springs 06:47:11 -51.7 Dark Down 48.4 97.2 Up 06:32:11 - 07:02:11 -3339
Henderson 06:47:11 -52.3 Dark Down 49.0 97.1 Up 06:32:11 - 07:02:11 -3411
Searchlight/Boulder City 06:47:12 -52.9 Dark Down 49.1 96.5 Up 06:32:12 - 07:02:12 -3468
Wildwood 06:47:27 -53.1 Dark Down 46.3 92.7 Up 06:32:27 - 07:02:27 -3487
Patrick 06:47:09 -53.2 Dark Down 50.0 97.2 Up 06:32:09 - 07:02:09 -3505
Laughlin/Bullhead City 06:47:12 -53.3 Dark Down 49.4 96.4 Up 06:32:12 - 07:02:12 -3508
Kingman/Dolan Springs 06:47:10 -53.4 Dark Down 49.9 96.8 Up 06:32:10 - 07:02:10 -3521
Mohave Valley 06:47:12 -53.5 Dark Down 49.5 96.1 Up 06:32:12 - 07:02:12 -3534
DCO 06:47:07 -53.7 Dark Down 50.6 97.3 Up 06:32:07 - 07:02:07 -3556
Idyllwild 06:47:23 -54.0 Dark Down 47.8 93.4 Up 06:32:23 - 07:02:23 -3580
Lake Havasu City 06:47:13 -54.0 Dark Down 49.7 95.8 Up 06:32:13 - 07:02:13 -3581
Parker 06:47:14 -54.3 Dark Down 49.8 95.4 Up 06:32:14 - 07:02:14 -3616
Blythe 06:47:16 -54.7 Dark Down 49.6 94.6 Up 06:32:16 - 07:02:16 -3658
Calipatria 06:47:20 -54.9 Dark Down 48.9 93.5 Up 06:32:20 - 07:02:20 -3677
George/Scottsdale 06:47:06 -55.3 Dark Down 51.8 96.5 Up 06:32:06 - 07:02:06 -3731
Yuma 06:47:19 -55.6 Dark Down 49.6 93.5 Up 06:32:19 - 07:02:19 -3748

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 14UN228, (2020/09/22 06:44UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 34.26 175
Hamal          02:07:10.7 +23:27:42  2.0  1.72 149
17Eta Ari      02:12:48.3 +21:12:39  5.8  1.01 150
PPM 091428     02:11:23.5 +21:22:38  8.1  0.87 150
PPM 091450     02:13:04.9 +22:18:16  9.3  0.19 150
PPM 091435     02:12:02.7 +22:17:10 11.4  0.10 150
14UN228        02:12:21.7 +22:13:14 15.0       150
Positions are for J2000

Event circumstances last updated at 2019/12/01 22:54:44 UT

Marc W. Buie, Southwest Research Institute

RECON