RECON: TNO occultation with 04TE282

Event between 04TE282 and star GA1260:01956401 with event index number of 229375

Geocentric closest approach at 2019/12/08 07:39:55 UTC

J2000 position of star is 05:21:24.7 +36:06:08
Equinox of date position of star is 05:22:40.7 +36:07:11
Stellar brightness G=15.6, use SENSEUP=128
Star is 55 degrees from the moon. Moon is 85% illuminated.
TNO apparent brightness V=23.1

[RECON map]
TNO is 30.1 AU from the Sun and 29.1 AU from the Earth.
The TNO is moving 24.7 km/sec on the sky relative to the star, or, 4.2 arcsec/hr.
The 1-sigma error in the time of the event is 268 seconds.
The 1-sigma cross-track error in the shadow position is 2724 km.
The sky-plane scale is 21113.4 km/arcsec.

The TNO has an absolute magnitude Hv=8.3
Diameter=130.0 km assuming a 5% albedo -- 5.3 sec chord
Diameter=53.1 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 04TE282, (2019/12/08 07:40UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:04.0 +16:32:52  0.8 22.05  40
3Iot Aur       04:58:17.7 +33:11:45  2.7  5.82  49
21Sig Aur      05:26:00.6 +37:24:07  6.4  1.44  56
PPM 070183     05:20:17.4 +36:13:00  8.0  0.51  54
PPM 070259     05:23:32.5 +36:13:02  9.0  0.19  55
04TE282        05:22:45.2 +36:07:14 15.6        55
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 3.4 sigma about the mid-time.
The median site spacing is 24.4 km RECON observability=1.0 and success probability=18.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 07:40:21 -62.7 Dark Up 75.1 154.6 Up 07:25:21 - 07:55:21 2070
Summerland 07:40:22 -62.8 Dark Up 75.0 153.4 Up 07:25:22 - 07:55:22 2067
Penticton 07:40:22 -63.1 Dark Up 75.4 153.5 Up 07:25:22 - 07:55:22 2032
Okanagan Falls 07:40:22 -63.3 Dark Up 75.5 153.1 Up 07:25:22 - 07:55:22 2012
Oliver 07:40:22 -63.4 Dark Up 75.7 152.8 Up 07:25:22 - 07:55:22 1994
Anarchist Mountain Observatory 07:40:22 -63.6 Dark Up 75.9 153.1 Up 07:25:22 - 07:55:22 1974
Oroville 07:40:22 -63.7 Dark Up 75.9 152.8 Up 07:25:22 - 07:55:22 1967
Tonasket 07:40:22 -63.9 Dark Up 76.1 152.3 Up 07:25:22 - 07:55:22 1941
Okanogan 07:40:22 -64.3 Dark Up 76.4 151.2 Up 07:25:22 - 07:55:22 1905
Brewster 07:40:23 -64.5 Dark Up 76.6 150.0 Up 07:25:23 - 07:55:23 1877
Manson/Chelan 07:40:24 -64.7 Dark Up 76.6 148.5 Up 07:25:24 - 07:55:24 1856
Entiat 07:40:24 -64.9 Dark Up 76.8 147.7 Up 07:25:24 - 07:55:24 1832
Wenatchee 07:40:25 -65.2 Dark Up 76.9 146.8 Up 07:25:25 - 07:55:25 1805
Ellensburg 07:40:25 -65.5 Dark Up 77.2 145.1 Up 07:25:25 - 07:55:25 1761
Yakima 07:40:26 -65.9 Dark Up 77.5 144.0 Up 07:25:26 - 07:55:26 1717
Toppenish/White Swan 07:40:25 -66.2 Dark Up 77.8 144.0 Up 07:25:25 - 07:55:25 1693
Pasco 07:40:22 -66.4 Dark Up 78.4 148.0 Up 07:25:22 - 07:55:22 1674
PNWRO 07:40:21 -66.6 Dark Up 78.7 148.2 Up 07:25:21 - 07:55:21 1646
George/Umatilla 07:40:22 -66.7 Dark Up 78.6 146.3 Up 07:25:22 - 07:55:22 1638
Goldendale 07:40:27 -66.7 Dark Up 78.0 141.1 Up 07:25:27 - 07:55:27 1634
The Dalles 07:40:28 -66.9 Dark Up 78.0 139.2 Up 07:25:28 - 07:55:28 1612
Maupin 07:40:28 -67.3 Dark Up 78.4 138.2 Up 07:25:28 - 07:55:28 1565
Madras/Culver 07:40:28 -67.8 Dark Up 78.8 136.2 Up 07:25:28 - 07:55:28 1506
Sisters 07:40:30 -68.1 Dark Up 78.8 133.6 Up 07:25:30 - 07:55:30 1472
Redmond 07:40:29 -68.2 Dark Up 79.0 134.8 Up 07:25:29 - 07:55:29 1467
Bend 07:40:29 -68.4 Dark Up 79.1 133.5 Up 07:25:29 - 07:55:29 1444
Oregon Observatory 07:40:29 -68.5 Dark Up 79.2 132.5 Up 07:25:29 - 07:55:29 1426
La Pine/Gilchrist 07:40:30 -68.7 Dark Up 79.3 131.5 Up 07:25:30 - 07:55:30 1404
North Lake 07:40:28 -69.2 Dark Up 79.9 131.7 Up 07:25:28 - 07:55:28 1353
Paisley 07:40:27 -69.8 Dark Up 80.4 130.5 Up 07:25:27 - 07:55:27 1290
Chiloquin 07:40:32 -69.8 Dark Up 79.8 125.7 Up 07:25:32 - 07:55:32 1284
Klamath Falls 07:40:31 -70.1 Dark Up 80.0 124.4 Up 07:25:31 - 07:55:31 1246
Lakeview 07:40:27 -70.3 Dark Up 80.9 128.8 Up 07:25:27 - 07:55:27 1233
Tulelake 07:40:30 -70.4 Dark Up 80.3 124.0 Up 07:25:30 - 07:55:30 1214
Cedarville 07:40:26 -71.0 Dark Up 81.4 126.1 Up 07:25:26 - 07:55:26 1160
Fall River/Burney 07:40:31 -71.3 Dark Up 80.9 119.6 Up 07:25:31 - 07:55:31 1113
Susanville 07:40:29 -72.0 Dark Up 81.7 118.2 Up 07:25:29 - 07:55:29 1039
Niwot 07:39:36 -69.9 Dark Up 83.7 232.4 Up 07:24:36 - 07:54:36 1018
Greenville 07:40:29 -72.3 Dark Up 81.6 115.7 Up 07:25:29 - 07:55:29 1011
Gimple 07:40:29 -72.3 Dark Up 81.6 115.9 Up 07:25:29 - 07:55:29 1010
Quincy 07:40:29 -72.5 Dark Up 81.7 114.4 Up 07:25:29 - 07:55:29 988
Portola 07:40:28 -72.7 Dark Up 82.1 115.0 Up 07:25:28 - 07:55:28 971
Reno 07:40:26 -73.0 Dark Up 82.6 115.2 Up 07:25:26 - 07:55:26 939
Carson City 07:40:26 -73.4 Dark Up 82.8 112.7 Up 07:25:26 - 07:55:26 899
Yerington 07:40:24 -73.6 Dark Up 83.3 113.2 Up 07:25:24 - 07:55:24 874
Gardnerville 07:40:26 -73.6 Dark Up 82.9 111.0 Up 07:25:26 - 07:55:26 871
Hawthorne 07:40:22 -74.1 Dark Up 83.8 111.0 Up 07:25:22 - 07:55:22 820
Tonopah 07:40:17 -74.6 Dark Up 85.0 111.5 Up 07:25:17 - 07:55:17 763
Lee Vining 07:40:24 -74.6 Dark Up 83.7 104.7 Up 07:25:24 - 07:55:24 760
Bishop 07:40:22 -75.3 Dark Up 84.3 100.8 Up 07:25:22 - 07:55:22 691
Beatty 07:40:16 -75.8 Dark Up 85.7 99.1 Up 07:25:16 - 07:55:16 634
Lone Pine 07:40:20 -76.1 Dark Up 84.7 93.5 Up 07:25:20 - 07:55:20 605
Indian Springs 07:40:12 -76.1 Dark Up 86.6 96.7 Up 07:25:12 - 07:55:12 595
Henderson 07:40:10 -76.5 Dark Up 87.2 87.7 Up 07:25:10 - 07:55:10 535
CPSLO 07:40:30 -77.0 Dark Up 82.6 81.2 Up 07:25:30 - 07:55:30 474
Searchlight/Boulder City 07:40:09 -77.1 Dark Up 87.1 76.2 Up 07:25:09 - 07:55:09 471
Patrick 07:40:05 -77.0 Dark Up 87.9 69.9 Up 07:25:05 - 07:55:05 465
Kingman/Dolan Springs 07:40:06 -77.2 Dark Up 87.7 65.9 Up 07:25:06 - 07:55:06 440
Laughlin/Bullhead City 07:40:08 -77.3 Dark Up 87.3 68.8 Up 07:25:08 - 07:55:08 438
DCO 07:40:03 -77.1 Dark Up 88.3 53.9 Up 07:25:03 - 07:55:03 431
Mohave Valley 07:40:08 -77.6 Dark Up 87.2 63.6 Up 07:25:08 - 07:55:08 408
Lake Havasu City 07:40:07 -77.9 Dark Up 87.2 54.6 Up 07:25:07 - 07:55:07 363
Wildwood 07:40:23 -78.5 Dark Up 83.9 68.9 Up 07:25:23 - 07:55:23 329
Parker 07:40:07 -78.3 Dark Up 87.0 49.0 Up 07:25:07 - 07:55:07 324
Idyllwild 07:40:16 -78.9 Dark Up 85.1 59.6 Up 07:25:16 - 07:55:16 283
Blythe 07:40:08 -78.8 Dark Up 86.4 45.0 Up 07:25:08 - 07:55:08 266
Calipatria 07:40:11 -79.5 Dark Up 85.5 47.1 Up 07:25:11 - 07:55:11 213
Yuma 07:40:08 -79.8 Dark Up 85.7 36.6 Up 07:25:08 - 07:55:08 164

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 04TE282, (2019/12/08 07:40UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 22.05  40
3Iot Aur       04:56:59.6 +33:09:58  2.7  5.82  49
21Sig Aur      05:24:39.2 +37:23:07  6.4  1.44  56
PPM 070183     05:18:56.9 +36:11:50  8.0  0.51  54
PPM 070259     05:22:11.9 +36:11:57  9.0  0.19  55
04TE282        05:21:24.7 +36:06:08 15.6        55
Positions are for J2000

Event circumstances last updated at 2018/10/25 20:37:43 UT

Marc W. Buie, Southwest Research Institute

RECON