Event between 98WV31 and star GA1140:01175089 with event index number of 1327106
Geocentric closest approach at 2023/10/30 08:01:19 UTC
J2000 position of star is 05:24:15.7 +25:24:48
Equinox of date position of star is 05:25:43.0 +25:26:00
Stellar brightness G=13.6,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 26 degrees from the moon.
Moon is 97% illuminated.
Apparent brightness V=24.2
[RECON map]
Object is 39.8 AU from the Sun
and 39.1 AU from the Earth.
Apparent velocity is 16.9
km/sec on the sky relative to the star, or,
2.1 arcsec/hr.
The 1-sigma error in the time of the event is 1118 seconds.
The 1-sigma cross-track error in the shadow position is
5554 km.
The sky-plane scale is
28369.7 km/arcsec.
The object has an absolute magnitude Hv=8.1
Diameter=144.5 km assuming a 5% albedo -- 8.6 sec chord
Diameter=59.0 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is 3:2E
Star training set for 98WV31, (2023/10/30 08:01UT) Object RA Dec mag sep mel Aldebaran 04:37:17.4 +16:33:19 0.8 14.36 16 Alnath 05:27:48.0 +28:37:31 1.6 3.22 27 PPM 094294 05:22:29.3 +27:58:45 6.3 2.65 25 PPM 094241 05:18:58.9 +24:02:00 7.9 2.08 24 PPM 094355 05:27:30.0 +25:46:44 8.8 0.53 26 PPM 094317 05:24:16.4 +25:07:24 10.2 0.45 26 98WV31 05:25:44.0 +25:26:01 13.6 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
0.8 sigma about the mid-time.
The median site spacing is 25.8 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) |
| Kamloops | 08:04:02 | -52.9 | Dark | Up | 49.2 | 112.2 | Up | 07:49:02 - 08:19:02 | -3739 |
| Kelowna | 08:04:01 | -53.6 | Dark | Up | 50.0 | 112.3 | Up | 07:49:01 - 08:19:01 | -3832 |
| Peachland | 08:04:03 | -53.7 | Dark | Up | 49.9 | 111.8 | Up | 07:49:03 - 08:19:03 | -3836 |
| Sleaford | 08:03:10 | -48.7 | Dark | Up | 56.0 | 131.0 | Up | 07:48:10 - 08:18:10 | -3841 |
| Summerland | 08:04:03 | -53.9 | Dark | Up | 50.0 | 111.8 | Up | 07:49:03 - 08:19:03 | -3852 |
| Penticton | 08:04:03 | -53.9 | Dark | Up | 50.1 | 111.8 | Up | 07:49:03 - 08:19:03 | -3861 |
| Victoria | 08:04:19 | -55.2 | Dark | Up | 48.1 | 106.9 | Up | 07:49:19 - 08:19:19 | -3875 |
| Oliver | 08:04:04 | -54.3 | Dark | Up | 50.3 | 111.4 | Up | 07:49:04 - 08:19:04 | -3894 |
| Anarchist Mountain Observatory | 08:04:04 | -54.4 | Dark | Up | 50.4 | 111.4 | Up | 07:49:04 - 08:19:04 | -3913 |
| Okanogan | 08:04:06 | -55.1 | Dark | Up | 50.5 | 110.5 | Up | 07:49:06 - 08:19:06 | -3970 |
| Brewster | 08:04:09 | -55.4 | Dark | Up | 50.5 | 110.0 | Up | 07:49:09 - 08:19:09 | -3991 |
| Manson/Chelan | 08:04:10 | -55.6 | Dark | Up | 50.4 | 109.4 | Up | 07:49:10 - 08:19:10 | -4004 |
| Wenatchee | 08:04:12 | -56.1 | Dark | Up | 50.4 | 108.7 | Up | 07:49:12 - 08:19:12 | -4045 |
| Ellensburg | 08:04:14 | -56.5 | Dark | Up | 50.4 | 108.0 | Up | 07:49:14 - 08:19:14 | -4080 |
| Yakima | 08:04:15 | -56.9 | Dark | Up | 50.5 | 107.5 | Up | 07:49:15 - 08:19:15 | -4118 |
| Toppenish/White Swan | 08:04:16 | -57.1 | Dark | Up | 50.7 | 107.4 | Up | 07:49:16 - 08:19:16 | -4143 |
| The Dalles | 08:04:21 | -58.0 | Dark | Up | 50.4 | 105.8 | Up | 07:49:21 - 08:19:21 | -4200 |
| PNWRO | 08:04:11 | -57.3 | Dark | Up | 51.8 | 108.5 | Up | 07:49:11 - 08:19:11 | -4209 |
| Maupin | 08:04:22 | -58.4 | Dark | Up | 50.6 | 105.4 | Up | 07:49:22 - 08:19:22 | -4243 |
| Sisters | 08:04:26 | -59.3 | Dark | Up | 50.5 | 103.9 | Up | 07:49:26 - 08:19:26 | -4317 |
| Bend | 08:04:26 | -59.5 | Dark | Up | 50.7 | 103.9 | Up | 07:49:26 - 08:19:26 | -4346 |
| Oregon Observatory | 08:04:27 | -59.7 | Dark | Up | 50.7 | 103.6 | Up | 07:49:27 - 08:19:27 | -4360 |
| Chiloquin | 08:04:32 | -61.0 | Dark | Up | 50.7 | 101.6 | Up | 07:49:32 - 08:19:32 | -4479 |
| Klamath Falls | 08:04:33 | -61.3 | Dark | Up | 50.8 | 101.3 | Up | 07:49:33 - 08:19:33 | -4514 |
| Cedarville | 08:04:29 | -61.9 | Dark | Up | 52.1 | 101.8 | Up | 07:49:29 - 08:19:29 | -4620 |
| Fall River/Burney | 08:04:35 | -62.5 | Dark | Up | 51.3 | 100.2 | Up | 07:49:35 - 08:19:35 | -4640 |
| Greenville | 08:04:36 | -63.3 | Dark | Up | 51.8 | 99.4 | Up | 07:49:36 - 08:19:36 | -4741 |
| Gimple | 08:04:35 | -63.3 | Dark | Up | 51.9 | 99.5 | Up | 07:49:35 - 08:19:35 | -4743 |
| Quincy | 08:04:36 | -63.5 | Dark | Up | 51.8 | 99.2 | Up | 07:49:36 - 08:19:36 | -4762 |
| Portola | 08:04:35 | -63.6 | Dark | Up | 52.2 | 99.4 | Up | 07:49:35 - 08:19:35 | -4785 |
| Reno | 08:04:32 | -63.8 | Dark | Up | 52.8 | 99.6 | Up | 07:49:32 - 08:19:32 | -4827 |
| Carson City | 08:04:34 | -64.1 | Dark | Up | 52.8 | 99.1 | Up | 07:49:34 - 08:19:34 | -4864 |
| Gardnerville | 08:04:34 | -64.3 | Dark | Up | 52.9 | 98.9 | Up | 07:49:34 - 08:19:34 | -4890 |
| Yerington | 08:04:32 | -64.2 | Dark | Up | 53.3 | 99.4 | Up | 07:49:32 - 08:19:32 | -4899 |
| Hawthorne | 08:04:31 | -64.5 | Dark | Up | 53.8 | 99.2 | Up | 07:49:31 - 08:19:31 | -4958 |
| Lee Vining | 08:04:35 | -65.2 | Dark | Up | 53.5 | 98.0 | Up | 07:49:35 - 08:19:35 | -5004 |
| Dunrhomin | 08:03:32 | -58.3 | Dark | Up | 63.1 | 115.2 | Up | 07:48:32 - 08:18:32 | -5040 |
| Nikitin | 08:03:32 | -58.5 | Dark | Up | 63.2 | 114.8 | Up | 07:48:32 - 08:18:32 | -5059 |
| CU-SBO | 08:03:33 | -58.5 | Dark | Up | 63.1 | 114.6 | Up | 07:48:33 - 08:18:33 | -5064 |
| Bishop | 08:04:32 | -65.6 | Dark | Up | 54.2 | 97.8 | Up | 07:49:32 - 08:19:32 | -5083 |
| Beatty | 08:04:28 | -65.6 | Dark | Up | 55.5 | 98.4 | Up | 07:49:28 - 08:19:28 | -5168 |
| Patrick | 08:04:19 | -66.1 | Dark | Up | 58.0 | 98.3 | Up | 07:49:19 - 08:19:19 | -5387 |
| Laughlin/Bullhead City | 08:04:22 | -66.5 | Dark | Up | 57.5 | 97.4 | Up | 07:49:22 - 08:19:22 | -5397 |
| Wildwood | 08:04:42 | -68.8 | Dark | Up | 54.4 | 93.1 | Up | 07:49:42 - 08:19:42 | -5416 |
| Lake Havasu City | 08:04:23 | -67.0 | Dark | Up | 57.8 | 96.5 | Up | 07:49:23 - 08:19:23 | -5473 |
| Idyllwild | 08:04:34 | -68.6 | Dark | Up | 55.9 | 93.8 | Up | 07:49:34 - 08:19:34 | -5498 |
| Calipatria | 08:04:30 | -68.7 | Dark | Up | 56.9 | 93.6 | Up | 07:49:30 - 08:19:30 | -5590 |
| George/Scottsdale | 08:04:13 | -66.7 | Dark | Up | 59.9 | 97.0 | Up | 07:49:13 - 08:19:13 | -5608 |
| Yuma | 08:04:28 | -68.7 | Dark | Up | 57.7 | 93.5 | Up | 07:49:28 - 08:19:28 | -5656 |
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 98WV31, (2023/10/30 08:01UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 14.36 16 Alnath 05:26:17.5 +28:36:23 1.6 3.22 27 PPM 094294 05:20:59.3 +27:57:25 6.3 2.65 25 PPM 094241 05:17:31.7 +24:00:34 7.9 2.08 24 PPM 094355 05:26:01.5 +25:45:35 8.8 0.53 26 PPM 094317 05:22:48.4 +25:06:08 10.2 0.45 26 98WV31 05:24:15.7 +25:24:48 13.6 26 Positions are for J2000
Event circumstances last updated at 2023/07/29 02:39:51 UT
Marc W. Buie, Southwest Research Institute