RECON: TNO occultation with 07NC7

Event between 07NC7 and star GA0960:00027488 with event index number of 1756732

Geocentric closest approach at 2027/09/28 05:16:31 UTC

J2000 position of star is 00:17:37.7 +06:41:27
Equinox of date position of star is 00:18:41.4 +06:48:19
Stellar brightness G=14.1, use SENSEUP=64
Star is 152 degrees from the moon. Moon is 5% illuminated.
TNO apparent brightness V=25.1

[RECON map]
TNO is 32.6 AU from the Sun and 31.6 AU from the Earth.
The TNO is moving 25.1 km/sec on the sky relative to the star, or, 4.0 arcsec/hr.
The 1-sigma error in the time of the event is 183 seconds.
The 1-sigma cross-track error in the shadow position is 3010 km.
The sky-plane scale is 22915.0 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=128.2 km assuming a 5% albedo -- 2.4 sec chord
Diameter=52.4 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 07NC7, (2027/09/28 05:17UT)
Object            RA         Dec     mag  sep  mel
Algenib        00:14:40.1 +15:20:15  2.8  8.56 149
41 Psc         00:22:01.7 +08:20:39  5.4  1.67 151
PPM 143387     00:21:30.8 +06:26:47  8.3  0.73 152
PPM 143340     00:18:54.4 +06:09:54  9.5  0.68 153
PPM 143345     00:19:10.0 +07:03:07 10.1  0.21 152
07NC7          00:19:03.4 +06:50:41 14.1       152
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 4.9 sigma about the mid-time.
The median site spacing is 15.0 km RECON observability=1.0 and success probability=11.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 05:17:09 -31.2 Dark Down 35.3 125.8 Up 05:02:09 - 05:32:09 2291
Clarence Fulton 05:16:55 -32.1 Dark Down 36.3 131.1 Up 05:01:55 - 05:31:55 2276
Peachland 05:16:58 -32.2 Dark Down 36.4 130.3 Up 05:01:58 - 05:31:58 2261
Kelowna 05:16:57 -32.3 Dark Down 36.5 130.7 Up 05:01:57 - 05:31:57 2259
Summerland 05:16:58 -32.4 Dark Down 36.5 130.3 Up 05:01:58 - 05:31:58 2251
Penticton 05:16:58 -32.5 Dark Down 36.6 130.4 Up 05:01:58 - 05:31:58 2244
Oliver 05:16:59 -32.7 Dark Down 36.9 130.2 Up 05:01:59 - 05:31:59 2225
Anarchist Mountain Observatory 05:16:59 -32.9 Dark Down 37.1 130.3 Up 05:01:59 - 05:31:59 2211
Tonasket 05:17:01 -33.1 Dark Down 37.2 130.1 Up 05:02:01 - 05:32:01 2196
Okanogan 05:17:02 -33.2 Dark Down 37.4 129.7 Up 05:02:02 - 05:32:02 2181
Brewster 05:17:03 -33.3 Dark Down 37.5 129.4 Up 05:02:03 - 05:32:03 2171
Manson/Chelan 05:17:04 -33.3 Dark Down 37.4 128.8 Up 05:02:04 - 05:32:04 2170
Entiat 05:17:06 -33.4 Dark Down 37.5 128.6 Up 05:02:06 - 05:32:06 2159
Wenatchee 05:17:06 -33.5 Dark Down 37.6 128.4 Up 05:02:06 - 05:32:06 2148
Ellensburg 05:17:08 -33.7 Dark Down 37.8 127.9 Up 05:02:08 - 05:32:08 2130
Yakima 05:17:09 -33.9 Dark Down 38.0 127.6 Up 05:02:09 - 05:32:09 2107
Toppenish/White Swan 05:17:10 -34.2 Dark Down 38.2 127.7 Up 05:02:10 - 05:32:10 2090
Goldendale 05:17:12 -34.3 Dark Down 38.3 126.9 Up 05:02:12 - 05:32:12 2070
The Dalles 05:17:14 -34.3 Dark Down 38.3 126.4 Up 05:02:14 - 05:32:14 2067
Pasco 05:17:08 -34.9 Dark Down 39.0 129.0 Up 05:02:08 - 05:32:08 2047
Maupin 05:17:15 -34.6 Dark Down 38.6 126.2 Up 05:02:15 - 05:32:15 2039
PNWRO 05:17:08 -35.2 Dark Down 39.3 129.1 Up 05:02:08 - 05:32:08 2026
Sisters 05:17:19 -34.9 Dark Down 38.8 125.2 Up 05:02:19 - 05:32:19 2000
Redmond 05:17:18 -35.1 Dark Down 39.1 125.6 Up 05:02:18 - 05:32:18 1987
Bend 05:17:19 -35.2 Dark Down 39.1 125.3 Up 05:02:19 - 05:32:19 1979
Oregon Observatory 05:17:20 -35.2 Dark Down 39.1 125.0 Up 05:02:20 - 05:32:20 1972
La Pine/Gilchrist 05:17:20 -35.3 Dark Down 39.2 124.8 Up 05:02:20 - 05:32:20 1961
North Lake 05:17:20 -35.9 Dark Down 39.8 125.2 Up 05:02:20 - 05:32:20 1916
Klamath Falls 05:17:26 -36.1 Dark Down 39.9 123.6 Up 05:02:26 - 05:32:26 1878
Paisley 05:17:21 -36.5 Dark Down 40.4 125.2 Up 05:02:21 - 05:32:21 1871
Lakeview 05:17:23 -36.9 Dark Down 40.8 125.0 Up 05:02:23 - 05:32:23 1833
Fall River/Burney 05:17:28 -37.0 Dark Down 40.8 123.1 Up 05:02:28 - 05:32:28 1790
Cedarville 05:17:24 -37.4 Dark Down 41.3 124.7 Up 05:02:24 - 05:32:24 1785
Susanville 05:17:28 -37.8 Dark Down 41.6 123.4 Up 05:02:28 - 05:32:28 1726
Greenville 05:17:30 -37.8 Dark Down 41.6 122.9 Up 05:02:30 - 05:32:30 1717
Gimple 05:17:30 -37.9 Dark Down 41.6 123.0 Up 05:02:30 - 05:32:30 1714
Quincy 05:17:31 -37.9 Dark Down 41.7 122.8 Up 05:02:31 - 05:32:31 1703
Portola 05:17:30 -38.3 Dark Down 42.0 123.2 Up 05:02:30 - 05:32:30 1680
Reno 05:17:29 -38.9 Dark Down 42.6 123.7 Up 05:02:29 - 05:32:29 1641
Carson City 05:17:30 -39.1 Dark Down 42.8 123.4 Up 05:02:30 - 05:32:30 1616
Gardnerville 05:17:31 -39.3 Dark Down 43.0 123.3 Up 05:02:31 - 05:32:31 1598
Yerington 05:17:29 -39.6 Dark Down 43.3 123.9 Up 05:02:29 - 05:32:29 1583
Hawthorne 05:17:29 -40.2 Dark Down 43.9 124.1 Up 05:02:29 - 05:32:29 1533
Lee Vining 05:17:32 -40.3 Dark Down 43.9 123.1 Up 05:02:32 - 05:32:32 1510
Tonopah 05:17:27 -41.4 Dark Down 45.1 125.2 Up 05:02:27 - 05:32:27 1455
Bishop 05:17:32 -41.1 Dark Down 44.7 123.4 Up 05:02:32 - 05:32:32 1443
CPSLO 05:17:40 -40.8 Dark Down 44.3 119.4 Up 05:02:40 - 05:32:40 1371
Beatty 05:17:29 -42.4 Dark Down 46.1 124.7 Up 05:02:29 - 05:32:29 1356
Indian Springs 05:17:28 -43.3 Dark Down 47.0 125.6 Up 05:02:28 - 05:32:28 1296
Henderson 05:17:27 -44.0 Dark Down 47.7 125.9 Up 05:02:27 - 05:32:27 1232
Wildwood 05:17:40 -42.9 Dark Down 46.4 120.4 Up 05:02:40 - 05:32:40 1209
Niwot 05:16:50 -46.2 Dark Down 50.5 141.4 Up 05:01:50 - 05:31:50 1207
SwRI 05:16:50 -46.3 Dark Down 50.5 141.1 Up 05:01:50 - 05:31:50 1202
Searchlight/Boulder City 05:17:29 -44.5 Dark Down 48.1 125.5 Up 05:02:29 - 05:32:29 1187
Laughlin/Bullhead City 05:17:28 -44.9 Dark Down 48.5 125.6 Up 05:02:28 - 05:32:28 1152
Patrick 05:17:26 -45.1 Dark Down 48.8 126.6 Up 05:02:26 - 05:32:26 1147
Kingman/Dolan Springs 05:17:27 -45.2 Dark Down 48.8 126.2 Up 05:02:27 - 05:32:27 1137
Mohave Valley 05:17:29 -45.0 Dark Down 48.7 125.3 Up 05:02:29 - 05:32:29 1131
Idyllwild 05:17:38 -44.4 Dark Down 47.9 122.0 Up 05:02:38 - 05:32:38 1117
DCO 05:17:25 -45.8 Dark Down 49.5 127.1 Up 05:02:25 - 05:32:25 1099
Lake Havasu City 05:17:30 -45.5 Dark Down 49.1 125.2 Up 05:02:30 - 05:32:30 1092
Parker 05:17:31 -45.7 Dark Down 49.3 124.9 Up 05:02:31 - 05:32:31 1064
Blythe 05:17:33 -45.8 Dark Down 49.4 124.1 Up 05:02:33 - 05:32:33 1033
Calipatria 05:17:36 -45.5 Dark Down 49.0 122.6 Up 05:02:36 - 05:32:36 1027
Yuma 05:17:35 -46.4 Dark Down 49.9 123.2 Up 05:02:35 - 05:32:35 962
George/Scottsdale 05:17:25 -47.5 Dark Down 51.2 127.3 Up 05:02:25 - 05:32:25 945

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 07NC7, (2027/09/28 05:17UT)
Object            RA         Dec     mag  sep  mel
Algenib        00:13:14.2 +15:11:01  2.8  8.56 149
41 Psc         00:20:35.9 +08:11:25  5.4  1.67 151
PPM 143387     00:20:05.1 +06:17:33  8.3  0.73 152
PPM 143340     00:17:28.8 +06:00:40  9.5  0.68 153
PPM 143345     00:17:44.3 +06:53:53 10.1  0.21 152
07NC7          00:17:37.7 +06:41:27 14.1       152
Positions are for J2000

Event circumstances last updated at 2020/08/16 00:33:12 UT

Marc W. Buie, Southwest Research Institute

RECON