Event between 99RB215 and star GA1120:00344068 with event index number of 296469
Geocentric closest approach at 2019/11/23 10:30:11 UTC
J2000 position of star is 02:59:08.8 +22:52:48
Equinox of date position of star is 03:00:16.3 +22:57:23
Stellar brightness G=15.8,
use SENSEUP=128
Star is 148 degrees from the moon.
Moon is 13% illuminated.
TNO apparent brightness V=24.8
[RECON map]
TNO is 35.5 AU from the Sun
and 34.5 AU from the Earth.
The TNO is moving 24.1
km/sec on the sky relative to the star, or,
3.5 arcsec/hr.
The 1-sigma error in the time of the event is 532 seconds.
The 1-sigma cross-track error in the shadow position is
5901 km.
The sky-plane scale is
25018.5 km/arcsec.
The TNO has an absolute magnitude Hv=9.3
Diameter=82.4 km assuming a 5% albedo -- 3.4 sec chord
Diameter=33.6 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is 2:1E
Star training set for 99RB215, (2019/11/23 10:30UT) Object RA Dec mag sep mel Aldebaran 04:37:03.9 +16:32:52 0.8 23.62 129 Hamal 02:08:18.0 +23:33:20 2.0 11.95 155 48Eps Ari 03:00:21.2 +21:25:08 5.6 1.54 148 PPM 092136 03:01:45.5 +22:54:25 8.1 0.34 147 PPM 092103 02:58:57.3 +22:50:23 10.5 0.33 148 99RB215 03:00:17.9 +22:57:30 15.8 147 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
1.7 sigma about the mid-time.
The median site spacing is 25.1 km
RECON observability=1.0 and success probability=7.8%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 10:27:16 | -46.3 | Dark | Down | 39.8 | 258.3 | Up | 10:12:16 - 10:42:16 | -2235 |
| Summerland | 10:27:16 | -46.6 | Dark | Down | 40.0 | 258.3 | Up | 10:12:16 - 10:42:16 | -2268 |
| Penticton | 10:27:16 | -46.5 | Dark | Down | 40.0 | 258.4 | Up | 10:12:16 - 10:42:16 | -2273 |
| Okanagan Falls | 10:27:16 | -46.6 | Dark | Down | 40.0 | 258.6 | Up | 10:12:16 - 10:42:16 | -2293 |
| Oliver | 10:27:15 | -46.7 | Dark | Down | 40.0 | 258.7 | Up | 10:12:15 - 10:42:15 | -2309 |
| Anarchist Mountain Observatory | 10:27:14 | -46.6 | Dark | Down | 39.9 | 259.0 | Up | 10:12:14 - 10:42:14 | -2325 |
| Oroville | 10:27:15 | -46.7 | Dark | Down | 40.0 | 259.0 | Up | 10:12:15 - 10:42:15 | -2333 |
| Tonasket | 10:27:14 | -46.8 | Dark | Down | 40.1 | 259.2 | Up | 10:12:14 - 10:42:14 | -2357 |
| Okanogan | 10:27:14 | -47.1 | Dark | Down | 40.2 | 259.4 | Up | 10:12:14 - 10:42:14 | -2393 |
| Brewster | 10:27:14 | -47.3 | Dark | Down | 40.4 | 259.4 | Up | 10:12:14 - 10:42:14 | -2423 |
| Manson/Chelan | 10:27:14 | -47.6 | Dark | Down | 40.7 | 259.3 | Up | 10:12:14 - 10:42:14 | -2448 |
| Entiat | 10:27:14 | -47.8 | Dark | Down | 40.8 | 259.4 | Up | 10:12:14 - 10:42:14 | -2472 |
| Wenatchee | 10:27:14 | -47.9 | Dark | Down | 40.9 | 259.5 | Up | 10:12:14 - 10:42:14 | -2499 |
| Ellensburg | 10:27:14 | -48.3 | Dark | Down | 41.1 | 259.7 | Up | 10:12:14 - 10:42:14 | -2544 |
| Yakima | 10:27:13 | -48.4 | Dark | Down | 41.2 | 260.0 | Up | 10:12:13 - 10:42:13 | -2586 |
| Pasco | 10:27:09 | -47.7 | Dark | Down | 40.3 | 261.5 | Up | 10:12:09 - 10:42:09 | -2607 |
| Toppenish/White Swan | 10:27:12 | -48.4 | Dark | Down | 41.1 | 260.4 | Up | 10:12:12 - 10:42:12 | -2607 |
| PNWRO | 10:27:09 | -47.6 | Dark | Down | 40.1 | 261.9 | Up | 10:12:09 - 10:42:09 | -2630 |
| George/Umatilla | 10:27:09 | -48.0 | Dark | Down | 40.5 | 261.6 | Up | 10:12:09 - 10:42:09 | -2644 |
| Goldendale | 10:27:13 | -48.9 | Dark | Down | 41.5 | 260.5 | Up | 10:12:13 - 10:42:13 | -2669 |
| The Dalles | 10:27:13 | -49.3 | Dark | Down | 41.8 | 260.4 | Up | 10:12:13 - 10:42:13 | -2696 |
| Maupin | 10:27:12 | -49.4 | Dark | Down | 41.8 | 260.8 | Up | 10:12:12 - 10:42:12 | -2739 |
| Madras/Culver | 10:27:11 | -49.6 | Dark | Down | 41.9 | 261.3 | Up | 10:12:11 - 10:42:11 | -2797 |
| Redmond | 10:27:11 | -49.8 | Dark | Down | 42.0 | 261.6 | Up | 10:12:11 - 10:42:11 | -2835 |
| Sisters | 10:27:12 | -50.1 | Dark | Down | 42.3 | 261.2 | Up | 10:12:12 - 10:42:12 | -2836 |
| Bend | 10:27:11 | -50.0 | Dark | Down | 42.1 | 261.6 | Up | 10:12:11 - 10:42:11 | -2859 |
| Oregon Observatory | 10:27:11 | -50.1 | Dark | Down | 42.2 | 261.7 | Up | 10:12:11 - 10:42:11 | -2879 |
| La Pine/Gilchrist | 10:27:11 | -50.3 | Dark | Down | 42.3 | 261.8 | Up | 10:12:11 - 10:42:11 | -2901 |
| North Lake | 10:27:09 | -50.0 | Dark | Down | 41.9 | 262.7 | Up | 10:12:09 - 10:42:09 | -2941 |
| Paisley | 10:27:08 | -50.0 | Dark | Down | 41.7 | 263.4 | Up | 10:12:08 - 10:42:08 | -2996 |
| Chiloquin | 10:27:10 | -50.9 | Dark | Down | 42.7 | 262.6 | Up | 10:12:10 - 10:42:10 | -3022 |
| Niwot | 10:26:34 | -39.5 | Dark | Up | 30.3 | 275.5 | Up | 10:11:34 - 10:41:34 | -3029 |
| SwRI | 10:26:34 | -39.6 | Dark | Up | 30.4 | 275.5 | Up | 10:11:34 - 10:41:34 | -3042 |
| Lakeview | 10:27:06 | -50.0 | Dark | Down | 41.7 | 264.0 | Up | 10:12:06 - 10:42:06 | -3048 |
| Klamath Falls | 10:27:10 | -51.0 | Dark | Down | 42.7 | 262.9 | Up | 10:12:10 - 10:42:10 | -3058 |
| Tulelake | 10:27:09 | -50.9 | Dark | Down | 42.5 | 263.4 | Up | 10:12:09 - 10:42:09 | -3084 |
| Cedarville | 10:27:05 | -50.2 | Dark | Down | 41.6 | 264.7 | Up | 10:12:05 - 10:42:05 | -3116 |
| Fall River/Burney | 10:27:08 | -51.2 | Dark | Down | 42.6 | 264.3 | Up | 10:12:08 - 10:42:08 | -3180 |
| Susanville | 10:27:05 | -50.9 | Dark | Down | 42.1 | 265.4 | Up | 10:12:05 - 10:42:05 | -3240 |
| Gimple | 10:27:05 | -51.1 | Dark | Down | 42.2 | 265.5 | Up | 10:12:05 - 10:42:05 | -3272 |
| Greenville | 10:27:06 | -51.2 | Dark | Down | 42.3 | 265.4 | Up | 10:12:06 - 10:42:06 | -3273 |
| Quincy | 10:27:05 | -51.2 | Dark | Down | 42.3 | 265.6 | Up | 10:12:05 - 10:42:05 | -3295 |
| Portola | 10:27:04 | -50.9 | Dark | Down | 42.0 | 266.1 | Up | 10:12:04 - 10:42:04 | -3303 |
| Reno | 10:27:02 | -50.5 | Dark | Down | 41.5 | 266.7 | Up | 10:12:02 - 10:42:02 | -3324 |
| Carson City | 10:27:02 | -50.6 | Dark | Down | 41.5 | 267.1 | Up | 10:12:02 - 10:42:02 | -3363 |
| Yerington | 10:27:00 | -50.2 | Dark | Down | 41.0 | 267.6 | Up | 10:12:00 - 10:42:00 | -3376 |
| Gardnerville | 10:27:01 | -50.7 | Dark | Down | 41.5 | 267.3 | Up | 10:12:01 - 10:42:01 | -3388 |
| Hawthorne | 10:26:59 | -49.9 | Dark | Down | 40.6 | 268.4 | Up | 10:11:59 - 10:41:59 | -3420 |
| Tonopah | 10:26:55 | -49.0 | Dark | Down | 39.5 | 269.7 | Up | 10:11:55 - 10:41:55 | -3452 |
| Lee Vining | 10:26:59 | -50.5 | Dark | Down | 41.0 | 268.6 | Up | 10:11:59 - 10:41:59 | -3487 |
| Bishop | 10:26:57 | -50.0 | Dark | Down | 40.5 | 269.5 | Up | 10:11:57 - 10:41:57 | -3542 |
| Beatty | 10:26:52 | -48.9 | Dark | Down | 39.2 | 270.9 | Up | 10:11:52 - 10:41:52 | -3570 |
| Indian Springs | 10:26:49 | -48.1 | Dark | Down | 38.3 | 271.8 | Up | 10:11:49 - 10:41:49 | -3590 |
| Lone Pine | 10:26:55 | -50.0 | Dark | Down | 40.2 | 270.4 | Up | 10:11:55 - 10:41:55 | -3620 |
| Henderson | 10:26:47 | -47.7 | Dark | Down | 37.7 | 272.6 | Up | 10:11:47 - 10:41:47 | -3637 |
| Patrick | 10:26:44 | -46.9 | Dark | Down | 36.8 | 273.7 | Up | 10:11:44 - 10:41:44 | -3688 |
| Searchlight/Boulder City | 10:26:47 | -47.7 | Dark | Down | 37.7 | 273.1 | Up | 10:11:47 - 10:41:47 | -3698 |
| DCO | 10:26:43 | -46.3 | Dark | Down | 36.2 | 274.3 | Up | 10:11:43 - 10:41:43 | -3709 |
| Kingman/Dolan Springs | 10:26:44 | -47.0 | Dark | Down | 36.9 | 273.7 | Up | 10:11:44 - 10:41:44 | -3715 |
| Laughlin/Bullhead City | 10:26:45 | -47.5 | Dark | Down | 37.4 | 273.5 | Up | 10:11:45 - 10:41:45 | -3725 |
| Mohave Valley | 10:26:45 | -47.5 | Dark | Down | 37.3 | 273.7 | Up | 10:11:45 - 10:41:45 | -3755 |
| CPSLO | 10:27:00 | -52.3 | Dark | Down | 42.3 | 270.0 | Up | 10:12:00 - 10:42:00 | -3793 |
| Lake Havasu City | 10:26:44 | -47.3 | Dark | Down | 37.1 | 274.1 | Up | 10:11:44 - 10:41:44 | -3794 |
| Parker | 10:26:44 | -47.4 | Dark | Down | 37.1 | 274.4 | Up | 10:11:44 - 10:41:44 | -3832 |
| Blythe | 10:26:44 | -47.7 | Dark | Down | 37.3 | 274.6 | Up | 10:11:44 - 10:41:44 | -3893 |
| Wildwood | 10:26:54 | -50.9 | Dark | Down | 40.6 | 272.2 | Up | 10:11:54 - 10:41:54 | -3900 |
| Idyllwild | 10:26:49 | -49.4 | Dark | Down | 39.0 | 273.5 | Up | 10:11:49 - 10:41:49 | -3913 |
| Calipatria | 10:26:46 | -48.5 | Dark | Down | 38.0 | 274.5 | Up | 10:11:46 - 10:41:46 | -3961 |
| Yuma | 10:26:44 | -47.8 | Dark | Down | 37.2 | 275.3 | Up | 10:11:44 - 10:41:44 | -3994 |
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 99RB215, (2019/11/23 10:30UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 23.62 129 Hamal 02:07:10.7 +23:27:42 2.0 11.95 155 48Eps Ari 02:59:12.7 +21:20:25 5.6 1.54 148 PPM 092136 03:00:36.4 +22:49:45 8.1 0.34 147 PPM 092103 02:57:48.2 +22:45:39 10.5 0.33 148 99RB215 02:59:08.8 +22:52:48 15.8 148 Positions are for J2000
Event circumstances last updated at 2019/06/07 22:54:30 UT
Marc W. Buie, Southwest Research Institute