RECON: TNO occultation with 14UE228

Event between 14UE228 and star UC4-528-003694 with event index number of 236534

Geocentric closest approach at 2019/12/03 03:04:11 UTC

J2000 position of star is 02:05:27.4 +15:33:21
Equinox of date position of star is 02:06:26.3 +15:38:29
Stellar brightness R=16.3, use SENSEUP=128
Star is 67 degrees from the moon. Moon is 39% illuminated.
TNO apparent brightness V=24.4

[RECON map]
TNO is 38.3 AU from the Sun and 37.5 AU from the Earth.
The TNO is moving 19.1 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 506 seconds.
The 1-sigma cross-track error in the shadow position is 4543 km.
The sky-plane scale is 27161.6 km/arcsec.

The TNO has an absolute magnitude Hv=8.5
Diameter=120.2 km assuming a 5% albedo -- 6.3 sec chord
Diameter=49.1 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is ERR2LARGE
 
 
 
 
 
 

Star training set for 14UE228, (2019/12/03 03:04UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:04.0 +16:32:52  0.8 36.11 101
6Bet Ari       01:55:44.7 +20:54:17  2.6  5.85  67
19 Ari         02:14:08.7 +15:22:20  5.7  1.85  68
PPM 117935     02:06:29.1 +15:37:56  8.4  0.02  67
14UE228        02:06:32.5 +15:39:02 16.3        67
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 1.8 sigma about the mid-time.
The median site spacing is 16.1 km RECON observability=1.0 and success probability=8.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 03:04:40 -29.0 Dark Up 47.1 129.6 Up 02:49:40 - 03:19:40 -1022
Tonasket 03:04:41 -29.0 Dark Up 47.3 129.4 Up 02:49:41 - 03:19:41 -1037
Okanogan 03:04:43 -28.9 Dark Up 47.4 128.9 Up 02:49:43 - 03:19:43 -1053
Brewster 03:04:44 -28.8 Dark Up 47.5 128.5 Up 02:49:44 - 03:19:44 -1063
Manson/Chelan 03:04:46 -28.5 Dark Up 47.4 127.8 Up 02:49:46 - 03:19:46 -1063
Entiat 03:04:47 -28.5 Dark Up 47.5 127.6 Up 02:49:47 - 03:19:47 -1074
Wenatchee 03:04:49 -28.4 Dark Up 47.7 127.2 Up 02:49:49 - 03:19:49 -1087
Ellensburg 03:04:51 -28.2 Dark Up 47.8 126.6 Up 02:49:51 - 03:19:51 -1106
Yakima 03:04:53 -28.2 Dark Up 48.0 126.3 Up 02:49:53 - 03:19:53 -1131
Toppenish/White Swan 03:04:53 -28.3 Dark Up 48.2 126.3 Up 02:49:53 - 03:19:53 -1152
Goldendale 03:04:57 -28.0 Dark Up 48.3 125.3 Up 02:49:57 - 03:19:57 -1172
The Dalles 03:04:58 -27.7 Dark Up 48.3 124.7 Up 02:49:58 - 03:19:58 -1173
Maupin 03:05:00 -27.8 Dark Up 48.6 124.4 Up 02:50:00 - 03:20:00 -1205
Pasco 03:04:50 -29.2 Dark Up 49.0 127.7 Up 02:49:50 - 03:19:50 -1206
George/Umatilla 03:04:52 -29.0 Dark Up 49.1 127.1 Up 02:49:52 - 03:19:52 -1220
PNWRO 03:04:50 -29.3 Dark Up 49.3 127.7 Up 02:49:50 - 03:19:50 -1231
Madras/Culver 03:05:02 -27.7 Dark Up 48.8 123.8 Up 02:50:02 - 03:20:02 -1240
Sisters 03:05:05 -27.4 Dark Up 48.8 123.0 Up 02:50:05 - 03:20:05 -1245
Redmond 03:05:04 -27.6 Dark Up 49.0 123.5 Up 02:50:04 - 03:20:04 -1262
Bend 03:05:05 -27.5 Dark Up 49.1 123.1 Up 02:50:05 - 03:20:05 -1271
Oregon Observatory 03:05:06 -27.4 Dark Up 49.1 122.8 Up 02:50:06 - 03:20:06 -1277
La Pine/Gilchrist 03:05:07 -27.4 Dark Up 49.2 122.5 Up 02:50:07 - 03:20:07 -1289
North Lake 03:05:07 -27.8 Dark Up 49.8 122.8 Up 02:50:07 - 03:20:07 -1342
Chiloquin 03:05:13 -27.0 Dark Up 49.5 121.0 Up 02:50:13 - 03:20:13 -1351
Klamath Falls 03:05:14 -27.0 Dark Up 49.8 120.8 Up 02:50:14 - 03:20:14 -1378
Paisley 03:05:08 -28.0 Dark Up 50.3 122.6 Up 02:50:08 - 03:20:08 -1394
Tulelake 03:05:14 -27.2 Dark Up 50.1 120.9 Up 02:50:14 - 03:20:14 -1409
Lakeview 03:05:10 -28.1 Dark Up 50.7 122.4 Up 02:50:10 - 03:20:10 -1437
Fall River/Burney 03:05:18 -27.2 Dark Up 50.6 120.0 Up 02:50:18 - 03:20:18 -1476
Cedarville 03:05:12 -28.2 Dark Up 51.1 121.9 Up 02:50:12 - 03:20:12 -1491
Susanville 03:05:18 -27.7 Dark Up 51.4 120.2 Up 02:50:18 - 03:20:18 -1551
Greenville 03:05:20 -27.4 Dark Up 51.4 119.6 Up 02:50:20 - 03:20:20 -1559
Gimple 03:05:19 -27.5 Dark Up 51.4 119.6 Up 02:50:19 - 03:20:19 -1563
Quincy 03:05:20 -27.4 Dark Up 51.5 119.3 Up 02:50:20 - 03:20:20 -1574
Portola 03:05:19 -27.8 Dark Up 51.8 119.7 Up 02:50:19 - 03:20:19 -1603
Reno 03:05:19 -28.2 Dark Up 52.4 120.2 Up 02:50:19 - 03:20:19 -1649
Carson City 03:05:20 -28.2 Dark Up 52.6 119.8 Up 02:50:20 - 03:20:20 -1676
Gardnerville 03:05:20 -28.2 Dark Up 52.8 119.6 Up 02:50:20 - 03:20:20 -1697
Yerington 03:05:19 -28.7 Dark Up 53.1 120.3 Up 02:50:19 - 03:20:19 -1717
Hawthorne 03:05:19 -29.1 Dark Up 53.7 120.4 Up 02:50:19 - 03:20:19 -1774
Lee Vining 03:05:20 -28.6 Dark Up 53.7 119.1 Up 02:50:20 - 03:20:20 -1797
Tonopah 03:05:16 -30.1 Dark Up 54.9 121.5 Up 02:50:16 - 03:20:16 -1869
Bishop 03:05:20 -29.1 Dark Up 54.5 119.2 Up 02:50:20 - 03:20:20 -1873
CPSLO 03:05:38 -27.1 Dark Up 53.8 114.3 Up 02:50:38 - 03:20:38 -1935
Lone Pine 03:05:20 -29.3 Dark Up 55.1 118.7 Up 02:50:20 - 03:20:20 -1947
Beatty 03:05:19 -30.4 Dark Up 55.8 120.6 Up 02:50:19 - 03:20:19 -1978
Indian Springs 03:05:16 -31.2 Dark Up 56.7 121.5 Up 02:50:16 - 03:20:16 -2050
Henderson 03:05:16 -31.7 Dark Up 57.5 121.6 Up 02:50:16 - 03:20:16 -2122
Wildwood 03:05:20 -28.5 Dark Up 55.8 114.8 Up 02:50:20 - 03:20:20 -2141
Searchlight/Boulder City 03:05:18 -31.7 Dark Up 57.8 120.9 Up 02:50:18 - 03:20:18 -2171
Niwot 03:04:27 -39.3 Dark Up 60.5 141.0 Up 02:49:27 - 03:19:27 -2201
Laughlin/Bullhead City 03:05:18 -31.9 Dark Up 58.2 121.0 Up 02:50:18 - 03:20:18 -2210
Patrick 03:05:14 -32.5 Dark Up 58.6 122.2 Up 02:50:14 - 03:20:14 -2221
Kingman/Dolan Springs 03:05:16 -32.3 Dark Up 58.6 121.6 Up 02:50:16 - 03:20:16 -2231
Mohave Valley 03:05:19 -31.9 Dark Up 58.4 120.6 Up 02:50:19 - 03:20:19 -2233
Idyllwild 03:05:20 -30.0 Dark Up 57.4 116.4 Up 02:50:20 - 03:20:20 -2241
Lake Havasu City 03:05:19 -32.1 Dark Up 58.8 120.3 Up 02:50:19 - 03:20:19 -2276
DCO 03:05:13 -33.1 Dark Up 59.2 122.7 Up 02:50:13 - 03:20:13 -2277
Parker 03:05:20 -32.1 Dark Up 59.0 119.9 Up 02:50:20 - 03:20:20 -2307
Blythe 03:05:20 -31.8 Dark Up 59.0 118.8 Up 02:50:20 - 03:20:20 -2337
Calipatria 03:05:20 -30.9 Dark Up 58.5 116.9 Up 02:50:20 - 03:20:20 -2341
Yuma 03:05:20 -31.6 Dark Up 59.4 117.3 Up 02:50:20 - 03:20:20 -2415

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 14UE228, (2019/12/03 03:04UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 36.11 101
6Bet Ari       01:54:38.5 +20:48:27  2.6  5.85  67
19 Ari         02:13:03.4 +15:16:47  5.7  1.85  68
PPM 117935     02:05:23.9 +15:32:16  8.4  0.02  67
14UE228        02:05:27.4 +15:33:21 16.3        67
Positions are for J2000

Event circumstances last updated at 2018/01/01 18:27:27 UT

Marc W. Buie, Southwest Research Institute

RECON