Event between (33128) 98BU48 and star GA0980:03772922 with event index number of 1112145
Geocentric closest approach at 2022/01/05 10:38:07 UTC
J2000 position of star is 12:20:44.4 +09:15:32
Equinox of date position of star is 12:21:49.2 +09:08:29
Stellar brightness G=13.7,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 141 degrees from the moon.
Moon is 10% illuminated.
TNO apparent brightness V=22.8
[RECON map]
TNO is 36.4 AU from the Sun
and 36.2 AU from the Earth.
The TNO is moving 6.8
km/sec on the sky relative to the star, or,
0.9 arcsec/hr.
The 1-sigma error in the time of the event is 222 seconds.
The 1-sigma cross-track error in the shadow position is
3080 km.
The sky-plane scale is
26250.2 km/arcsec.
The TNO has an absolute magnitude Hv=7.0
Diameter=242.1 km assuming a 5% albedo -- 35.7 sec chord
Diameter=98.8 km assuming a 30% albedo -- 14.6 sec chord
Dynamical classification is CENTAURR
Star training set for 33128, (2022/01/05 10:39UT) Object RA Dec mag sep mel Spica 13:26:21.4 -11:16:32 1.0 25.96 118 Denebola 11:50:10.9 +14:26:56 2.1 9.40 150 12 Vir 12:14:33.2 +10:08:24 5.8 2.06 143 PPM 158702 12:19:34.9 +07:56:34 8.2 1.32 141 PPM 158717 12:20:30.9 +09:20:34 9.0 0.39 141 PPM 158746 12:21:34.8 +09:03:11 10.9 0.11 141 33128 12:21:51.7 +09:08:13 13.7 141 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
4.1 sigma about the mid-time.
The median site spacing is 8.1 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) |
| Dunrhomin | 10:46:57 | -40.5 | Dark | Down | 52.6 | 139.4 | Up | 10:31:57 - 11:01:57 | -3229 |
| Clarence Fulton | 10:49:21 | -47.4 | Dark | Down | 38.8 | 130.1 | Up | 10:34:21 - 11:04:21 | -3704 |
| Kelowna | 10:49:13 | -47.7 | Dark | Down | 39.0 | 129.7 | Up | 10:34:13 - 11:04:13 | -3735 |
| Peachland | 10:49:13 | -47.9 | Dark | Down | 38.9 | 129.3 | Up | 10:34:13 - 11:04:13 | -3759 |
| Penticton | 10:49:12 | -47.9 | Dark | Down | 39.1 | 129.4 | Up | 10:34:12 - 11:04:12 | -3759 |
| Summerland | 10:49:13 | -47.9 | Dark | Down | 39.0 | 129.3 | Up | 10:34:13 - 11:04:13 | -3762 |
| Anarchist Mountain Observatory | 10:49:03 | -48.0 | Dark | Down | 39.5 | 129.2 | Up | 10:34:03 - 11:04:03 | -3779 |
| Oliver | 10:49:06 | -48.0 | Dark | Down | 39.3 | 129.1 | Up | 10:34:06 - 11:04:06 | -3780 |
| Tonasket | 10:49:00 | -48.2 | Dark | Down | 39.7 | 128.9 | Up | 10:34:00 - 11:04:00 | -3800 |
| Okanogan | 10:48:57 | -48.4 | Dark | Down | 39.8 | 128.5 | Up | 10:33:57 - 11:03:57 | -3828 |
| Brewster | 10:48:53 | -48.6 | Dark | Down | 39.9 | 128.1 | Up | 10:33:53 - 11:03:53 | -3855 |
| Manson/Chelan | 10:48:51 | -49.0 | Dark | Down | 39.8 | 127.5 | Up | 10:33:51 - 11:03:51 | -3888 |
| PNWRO | 10:48:28 | -48.9 | Dark | Down | 41.6 | 127.5 | Up | 10:33:28 - 11:03:28 | -3918 |
| Pasco | 10:48:35 | -49.0 | Dark | Down | 41.3 | 127.5 | Up | 10:33:35 - 11:03:35 | -3918 |
| Wenatchee | 10:48:46 | -49.3 | Dark | Down | 40.0 | 127.0 | Up | 10:33:46 - 11:03:46 | -3925 |
| Ellensburg | 10:48:42 | -49.6 | Dark | Down | 40.1 | 126.5 | Up | 10:33:42 - 11:03:42 | -3961 |
| Yakima | 10:48:35 | -49.8 | Dark | Down | 40.3 | 126.2 | Up | 10:33:35 - 11:03:35 | -3986 |
| Toppenish/White Swan | 10:48:38 | -49.7 | Dark | Down | 40.5 | 126.2 | Up | 10:33:38 - 11:03:38 | -3988 |
| George/Scottsdale | 10:45:41 | -46.4 | Dark | Down | 52.7 | 123.9 | Up | 10:30:41 - 11:00:41 | -4004 |
| Victoria | 10:49:04 | -50.6 | Dark | Down | 37.7 | 124.6 | Up | 10:34:04 - 11:04:04 | -4034 |
| Goldendale | 10:48:32 | -50.2 | Dark | Down | 40.6 | 125.3 | Up | 10:33:32 - 11:03:32 | -4044 |
| The Dalles | 10:48:31 | -50.5 | Dark | Down | 40.5 | 124.8 | Up | 10:33:31 - 11:03:31 | -4079 |
| Patrick | 10:46:07 | -47.9 | Dark | Down | 50.5 | 123.5 | Up | 10:31:07 - 11:01:07 | -4089 |
| Maupin | 10:48:24 | -50.7 | Dark | Down | 40.8 | 124.6 | Up | 10:33:24 - 11:03:24 | -4096 |
| Kingman/Dolan Springs | 10:46:04 | -48.1 | Dark | Down | 50.5 | 123.1 | Up | 10:31:04 - 11:01:04 | -4113 |
| Henderson | 10:46:18 | -48.7 | Dark | Down | 49.4 | 122.9 | Up | 10:31:18 - 11:01:18 | -4145 |
| Redmond | 10:48:17 | -51.1 | Dark | Down | 41.3 | 123.8 | Up | 10:33:17 - 11:03:17 | -4153 |
| Laughlin/Bullhead City | 10:46:04 | -48.5 | Dark | Down | 50.1 | 122.5 | Up | 10:31:04 - 11:01:04 | -4153 |
| Lake Havasu City | 10:45:56 | -48.4 | Dark | Down | 50.7 | 122.0 | Up | 10:30:56 - 11:00:56 | -4162 |
| Mohave Valley | 10:46:00 | -48.6 | Dark | Down | 50.3 | 122.2 | Up | 10:31:00 - 11:01:00 | -4164 |
| Indian Springs | 10:46:28 | -49.2 | Dark | Down | 48.7 | 122.7 | Up | 10:31:28 - 11:01:28 | -4172 |
| Bend | 10:48:07 | -51.3 | Dark | Down | 41.3 | 123.4 | Up | 10:33:07 - 11:03:07 | -4173 |
| Parker | 10:45:53 | -48.4 | Dark | Down | 50.8 | 121.7 | Up | 10:30:53 - 11:00:53 | -4175 |
| Sisters | 10:48:17 | -51.3 | Dark | Down | 41.0 | 123.4 | Up | 10:33:17 - 11:03:17 | -4176 |
| Oregon Observatory | 10:48:10 | -51.4 | Dark | Down | 41.3 | 123.2 | Up | 10:33:10 - 11:03:10 | -4191 |
| North Lake | 10:48:00 | -51.3 | Dark | Down | 41.9 | 123.2 | Up | 10:33:00 - 11:03:00 | -4193 |
| Paisley | 10:47:54 | -51.2 | Dark | Down | 42.5 | 123.2 | Up | 10:32:54 - 11:02:54 | -4200 |
| La Pine/Gilchrist | 10:48:03 | -51.5 | Dark | Down | 41.3 | 123.0 | Up | 10:33:03 - 11:03:03 | -4206 |
| Tonopah | 10:46:49 | -50.1 | Dark | Down | 46.9 | 122.6 | Up | 10:31:49 - 11:01:49 | -4214 |
| Lakeview | 10:47:46 | -51.3 | Dark | Down | 42.8 | 122.9 | Up | 10:32:46 - 11:02:46 | -4215 |
| Blythe | 10:45:46 | -48.7 | Dark | Down | 50.9 | 120.8 | Up | 10:30:46 - 11:00:46 | -4220 |
| Beatty | 10:46:35 | -50.0 | Dark | Down | 47.8 | 121.9 | Up | 10:31:35 - 11:01:35 | -4236 |
| Cedarville | 10:47:32 | -51.4 | Dark | Down | 43.3 | 122.6 | Up | 10:32:32 - 11:02:32 | -4239 |
| Yuma | 10:45:32 | -48.8 | Dark | Down | 51.3 | 119.7 | Up | 10:30:32 - 11:00:32 | -4261 |
| Chiloquin | 10:47:53 | -52.2 | Dark | Down | 41.7 | 121.7 | Up | 10:32:53 - 11:02:53 | -4289 |
| Hawthorne | 10:47:00 | -51.1 | Dark | Down | 45.8 | 121.5 | Up | 10:32:00 - 11:02:00 | -4289 |
| Yerington | 10:47:03 | -51.4 | Dark | Down | 45.2 | 121.4 | Up | 10:32:03 - 11:02:03 | -4302 |
| Klamath Falls | 10:47:46 | -52.3 | Dark | Down | 41.9 | 121.5 | Up | 10:32:46 - 11:02:46 | -4303 |
| Calipatria | 10:45:43 | -49.5 | Dark | Down | 50.4 | 119.2 | Up | 10:30:43 - 11:00:43 | -4312 |
| Reno | 10:47:12 | -51.7 | Dark | Down | 44.5 | 121.2 | Up | 10:32:12 - 11:02:12 | -4319 |
| Susanville | 10:47:21 | -52.1 | Dark | Down | 43.5 | 121.1 | Up | 10:32:21 - 11:02:21 | -4329 |
| Bishop | 10:46:39 | -51.2 | Dark | Down | 46.5 | 120.6 | Up | 10:31:39 - 11:01:39 | -4330 |
| Carson City | 10:47:08 | -51.8 | Dark | Down | 44.7 | 120.9 | Up | 10:32:08 - 11:02:08 | -4335 |
| Fall River/Burney | 10:47:35 | -52.4 | Dark | Down | 42.7 | 120.9 | Up | 10:32:35 - 11:02:35 | -4343 |
| Gardnerville | 10:47:07 | -51.8 | Dark | Down | 44.8 | 120.8 | Up | 10:32:07 - 11:02:07 | -4345 |
| Portola | 10:47:16 | -52.1 | Dark | Down | 43.9 | 120.8 | Up | 10:32:16 - 11:02:16 | -4348 |
| Lee Vining | 10:46:53 | -51.6 | Dark | Down | 45.7 | 120.5 | Up | 10:31:53 - 11:01:53 | -4351 |
| Gimple | 10:47:24 | -52.3 | Dark | Down | 43.5 | 120.7 | Up | 10:32:24 - 11:02:24 | -4357 |
| Greenville | 10:47:24 | -52.3 | Dark | Down | 43.5 | 120.6 | Up | 10:32:24 - 11:02:24 | -4362 |
| Quincy | 10:47:21 | -52.4 | Dark | Down | 43.6 | 120.4 | Up | 10:32:21 - 11:02:21 | -4372 |
| Idyllwild | 10:45:48 | -50.5 | Dark | Down | 49.3 | 118.7 | Up | 10:30:48 - 11:00:48 | -4375 |
| Wildwood | 10:46:01 | -51.9 | Dark | Down | 47.8 | 117.2 | Up | 10:31:01 - 11:01:01 | -4497 |
| CPSLO | 10:46:19 | -53.4 | Dark | Down | 45.8 | 116.4 | Up | 10:31:19 - 11:01:19 | -4586 |
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 33128, (2022/01/05 10:39UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 25.96 118 Denebola 11:49:02.9 +14:34:17 2.1 9.40 150 12 Vir 12:13:25.8 +10:15:44 5.8 2.06 143 PPM 158702 12:18:27.6 +08:03:54 8.2 1.32 141 PPM 158717 12:19:23.6 +09:27:53 9.0 0.39 141 PPM 158746 12:20:27.5 +09:10:30 10.9 0.11 141 33128 12:20:44.4 +09:15:32 13.7 141 Positions are for J2000
Event circumstances last updated at 2021/03/19 23:11:09 UT
Marc W. Buie, Southwest Research Institute