RECON: TNO occultation with 03UY291

Event between 03UY291 and star GA1160:01187749 with event index number of 1073705

Geocentric closest approach at 2021/11/19 04:59:58 UTC

J2000 position of star is 05:18:36.1 +26:41:10
Equinox of date position of star is 05:19:48.7 +26:42:19
Stellar brightness G=15.2, use SENSEUP=128
Star is 26 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=23.8

[RECON map]
TNO is 44.9 AU from the Sun and 44.0 AU from the Earth.
The TNO is moving 23.1 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 1050 seconds.
The 1-sigma cross-track error in the shadow position is 3382 km.
The sky-plane scale is 31899.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=211.8 km assuming a 5% albedo -- 9.2 sec chord
Diameter=86.5 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 03UY291, (2021/11/19 05:00UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:10.7 +16:33:06  0.8 14.20  15
Alnath         05:27:40.6 +28:37:26  1.6  2.57  28
PPM 094294     05:22:21.9 +27:58:38  6.3  1.38  27
PPM 094273     05:21:15.3 +27:06:10  9.6  0.49  26
PPM 094246     05:19:03.5 +26:46:10 11.2  0.21  26
03UY291        05:19:57.8 +26:42:27 15.2        26
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 0.9 sigma about the mid-time.
The median site spacing is 19.4 km RECON observability=1.0 and success probability=12.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 05:02:33 -46.1 Dark Up 36.0 90.0 Up 04:47:33 - 05:17:33 -1616
Summerland 05:02:35 -46.0 Dark Up 35.8 89.6 Up 04:47:35 - 05:17:35 -1631
Penticton 05:02:35 -46.1 Dark Up 35.9 89.6 Up 04:47:35 - 05:17:35 -1639
Okanagan Falls 05:02:35 -46.2 Dark Up 35.8 89.5 Up 04:47:35 - 05:17:35 -1653
Oliver 05:02:36 -46.3 Dark Up 35.9 89.4 Up 04:47:36 - 05:17:36 -1667
Anarchist Mountain Observatory 05:02:36 -46.5 Dark Up 36.0 89.4 Up 04:47:36 - 05:17:36 -1686
Oroville 05:02:37 -46.5 Dark Up 35.9 89.3 Up 04:47:37 - 05:17:37 -1690
Tonasket 05:02:37 -46.6 Dark Up 35.9 89.1 Up 04:47:37 - 05:17:37 -1708
Okanogan 05:02:39 -46.7 Dark Up 35.8 88.8 Up 04:47:39 - 05:17:39 -1730
Brewster 05:02:40 -46.7 Dark Up 35.7 88.4 Up 04:47:40 - 05:17:40 -1745
Manson/Chelan 05:02:41 -46.6 Dark Up 35.4 88.0 Up 04:47:41 - 05:17:41 -1750
Entiat 05:02:42 -46.6 Dark Up 35.4 87.8 Up 04:47:42 - 05:17:42 -1766
Wenatchee 05:02:43 -46.7 Dark Up 35.3 87.6 Up 04:47:43 - 05:17:43 -1783
Ellensburg 05:02:44 -46.7 Dark Up 35.2 87.1 Up 04:47:44 - 05:17:44 -1809
Yakima 05:02:46 -46.9 Dark Up 35.1 86.8 Up 04:47:46 - 05:17:46 -1841
Toppenish/White Swan 05:02:46 -47.1 Dark Up 35.2 86.8 Up 04:47:46 - 05:17:46 -1864
Goldendale 05:02:49 -47.0 Dark Up 34.9 86.1 Up 04:47:49 - 05:17:49 -1895
The Dalles 05:02:50 -46.9 Dark Up 34.6 85.7 Up 04:47:50 - 05:17:50 -1901
Pasco 05:02:45 -47.9 Dark Up 36.1 87.6 Up 04:47:45 - 05:17:45 -1915
George/Umatilla 05:02:46 -47.9 Dark Up 35.9 87.2 Up 04:47:46 - 05:17:46 -1935
Maupin 05:02:51 -47.1 Dark Up 34.7 85.5 Up 04:47:51 - 05:17:51 -1938
PNWRO 05:02:45 -48.2 Dark Up 36.2 87.6 Up 04:47:45 - 05:17:45 -1943
Madras/Culver 05:02:53 -47.3 Dark Up 34.6 85.1 Up 04:47:53 - 05:17:53 -1982
Sisters 05:02:54 -47.1 Dark Up 34.3 84.6 Up 04:47:54 - 05:17:54 -1994
Redmond 05:02:54 -47.4 Dark Up 34.5 84.8 Up 04:47:54 - 05:17:54 -2010
Bend 05:02:55 -47.4 Dark Up 34.4 84.6 Up 04:47:55 - 05:17:55 -2023
Oregon Observatory 05:02:56 -47.4 Dark Up 34.3 84.4 Up 04:47:56 - 05:17:56 -2032
La Pine/Gilchrist 05:02:56 -47.4 Dark Up 34.3 84.2 Up 04:47:56 - 05:17:56 -2047
North Lake 05:02:57 -48.0 Dark Up 34.7 84.3 Up 04:47:57 - 05:17:57 -2104
Chiloquin 05:03:00 -47.6 Dark Up 33.9 83.2 Up 04:48:00 - 05:18:00 -2128
Klamath Falls 05:03:01 -47.7 Dark Up 33.9 83.1 Up 04:48:01 - 05:18:01 -2159
Paisley 05:02:58 -48.4 Dark Up 34.9 84.2 Up 04:47:58 - 05:17:58 -2163
Tulelake 05:03:02 -48.0 Dark Up 34.1 83.1 Up 04:48:02 - 05:18:02 -2193
Lakeview 05:03:00 -48.8 Dark Up 35.0 83.9 Up 04:48:00 - 05:18:00 -2213
Fall River/Burney 05:03:04 -48.4 Dark Up 34.1 82.5 Up 04:48:04 - 05:18:04 -2273
Cedarville 05:03:01 -49.1 Dark Up 35.0 83.6 Up 04:48:01 - 05:18:01 -2275
Susanville 05:03:05 -49.1 Dark Up 34.5 82.5 Up 04:48:05 - 05:18:05 -2354
Greenville 05:03:07 -49.0 Dark Up 34.3 82.2 Up 04:48:07 - 05:18:07 -2367
Gimple 05:03:06 -49.1 Dark Up 34.3 82.2 Up 04:48:06 - 05:18:06 -2370
Quincy 05:03:07 -49.1 Dark Up 34.3 82.0 Up 04:48:07 - 05:18:07 -2385
Portola 05:03:07 -49.5 Dark Up 34.6 82.2 Up 04:48:07 - 05:18:07 -2413
Reno 05:03:07 -50.0 Dark Up 35.1 82.4 Up 04:48:07 - 05:18:07 -2460
Carson City 05:03:07 -50.2 Dark Up 35.0 82.2 Up 04:48:07 - 05:18:07 -2492
Gardnerville 05:03:08 -50.3 Dark Up 35.0 82.0 Up 04:48:08 - 05:18:08 -2516
Yerington 05:03:07 -50.7 Dark Up 35.5 82.4 Up 04:48:07 - 05:18:07 -2533
Hawthorne 05:03:08 -51.2 Dark Up 35.9 82.4 Up 04:48:08 - 05:18:08 -2593
Lee Vining 05:03:10 -51.0 Dark Up 35.4 81.7 Up 04:48:10 - 05:18:10 -2626
Tonopah 05:03:07 -52.4 Dark Up 36.9 82.8 Up 04:48:07 - 05:18:07 -2687
Bishop 05:03:10 -51.8 Dark Up 35.9 81.7 Up 04:48:10 - 05:18:10 -2706
Lone Pine 05:03:12 -52.2 Dark Up 36.0 81.3 Up 04:48:12 - 05:18:12 -2788
CPSLO 05:03:19 -50.5 Dark Up 33.8 79.1 Up 04:48:19 - 05:18:19 -2807
Beatty 05:03:09 -53.1 Dark Up 37.1 82.2 Up 04:48:09 - 05:18:09 -2808
Indian Springs 05:03:08 -54.1 Dark Up 37.9 82.5 Up 04:48:08 - 05:18:08 -2878
Niwot 05:02:38 -59.8 Dark Up 46.2 91.7 Up 04:47:38 - 05:17:38 -2906
SwRI 05:02:38 -59.8 Dark Up 46.2 91.6 Up 04:47:38 - 05:17:38 -2913
Henderson 05:03:08 -54.8 Dark Up 38.4 82.4 Up 04:48:08 - 05:18:08 -2953
Wildwood 05:03:19 -52.5 Dark Up 35.2 79.3 Up 04:48:19 - 05:18:19 -2997
Searchlight/Boulder City 05:03:09 -55.0 Dark Up 38.4 82.0 Up 04:48:09 - 05:18:09 -3009
Laughlin/Bullhead City 05:03:10 -55.3 Dark Up 38.6 81.9 Up 04:48:10 - 05:18:10 -3049
Patrick 05:03:07 -55.8 Dark Up 39.2 82.5 Up 04:48:07 - 05:18:07 -3052
Kingman/Dolan Springs 05:03:08 -55.7 Dark Up 39.0 82.2 Up 04:48:08 - 05:18:08 -3066
Mohave Valley 05:03:10 -55.4 Dark Up 38.6 81.7 Up 04:48:10 - 05:18:10 -3075
Idyllwild 05:03:17 -54.1 Dark Up 36.7 79.9 Up 04:48:17 - 05:18:17 -3103
DCO 05:03:07 -56.5 Dark Up 39.7 82.6 Up 04:48:07 - 05:18:07 -3107
Lake Havasu City 05:03:11 -55.7 Dark Up 38.7 81.5 Up 04:48:11 - 05:18:11 -3122
Parker 05:03:11 -55.9 Dark Up 38.7 81.3 Up 04:48:11 - 05:18:11 -3156
Blythe 05:03:13 -55.8 Dark Up 38.4 80.7 Up 04:48:13 - 05:18:13 -3195
Calipatria 05:03:16 -55.2 Dark Up 37.5 79.9 Up 04:48:16 - 05:18:16 -3206
Yuma 05:03:15 -56.0 Dark Up 38.2 80.0 Up 04:48:15 - 05:18:15 -3281

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 03UY291, (2021/11/19 05:00UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 14.20  15
Alnath         05:26:17.5 +28:36:23  1.6  2.57  28
PPM 094294     05:20:59.3 +27:57:25  6.3  1.38  27
PPM 094273     05:19:53.3 +27:04:55  9.6  0.49  26
PPM 094246     05:17:41.7 +26:44:51 11.2  0.21  26
03UY291        05:18:36.1 +26:41:10 15.2        26
Positions are for J2000

Event circumstances last updated at 2019/06/08 02:39:30 UT

Marc W. Buie, Southwest Research Institute

RECON