At 12:46 2001-09-27 +0800, Sergay wrote:
>Dear friends,
>Greeting from Siberia!
>
>It will be another interesting event soon: asteroid 1998 WT24 Near-Earth
flyby.
>At December 15-16 it will be the second in brightness (9m) in whole sky. So I
>wanted to make ephemeris for it........
The neodys web page for 1998 WT24 gives the following positions for th1s
minor planet:
!RMS of orbit residuals = 0.749
!RMS of mag residuals = 0.49
!++ OBJ ++ OBS +++++ DATE ++++++ +++++ RIGHT ASCENSION ++++++ ++++++
DECLINATION ++++++++ +++++ APP MAG +++++ ++++ QUALITY +++
!+ DESIG + TYP YYYY MM DD.dddddd HH MM SS.sss rms resid DD MM SS.ss
rms resid MAG COL rms resid OBS CHI SEL
1998WT24 C 1998 11 24.488060 10 31 32.490 1.00 -1.790 +07 52 28.00
1.00 1.153 18.3 R 0.70 0.90 699 2.19 1
1998WT24 C 1998 11 24.508460 10 31 37.830 1.00 -0.812 +07 52 20.10
1.00 1.222 699 1.51 1
1998WT24 C 1998 11 24.528890 10 31 43.080 1.00 -1.178 +07 52 11.00
1.00 0.161 699 1.22 1
1998WT24 C 1998 11 25.458330 10 35 56.170 1.00 -1.164 +07 45 49.50
1.00 -0.506 18.2 0.70 -0.37 704 1.30 1
1998WT24 C 1998 11 25.468860 10 35 58.880 1.00 -2.668 +07 45 47.20
1.00 1.483 18.3 0.70 -0.27 704 2.99 0
1998WT24 C 1998 11 25.479470 10 36 01.890 1.00 0.016 +07 45 40.60
1.00 -0.780 18.0 0.70 -0.57 704 0.80 1
1998WT24 C 1998 11 25.490020 10 36 04.750 1.00 0.747 +07 45 36.00
1.00 -1.053 18.1 0.70 -0.47 704 1.32 1
1998WT24 C 1998 11 25.500580 10 36 07.600 1.00 1.323 +07 45 32.10
1.00 -0.606 18.0 0.70 -0.57 704 1.49 1
1998WT24 C 1998 11 26.439060 10 40 30.500 1.00 -0.744 +07 38 45.20
1.00 -1.184 734 1.43 1
1998WT24 C 1998 11 26.442890 10 40 31.660 1.00 0.805 +07 38 43.80
1.00 -0.937 734 1.26 1
1998WT24 C 1998 11 26.448500 10 40 33.310 1.00 2.353 +07 38 41.50
1.00 -0.822 734 2.54 1
1998WT24 C 1998 12 01.453520 11 06 17.840 1.00 -1.033 +06 56 36.20
1.00 0.829 18.2 0.70 -0.21 704 1.35 1
1998WT24 C 1998 12 01.466290 11 06 21.990 1.00 -1.191 +06 56 27.60
1.00 -0.538 18.4 0.70 -0.01 704 1.33 1
1998WT24 C 1998 12 01.478860 11 06 26.040 1.00 -1.794 +06 56 21.10
1.00 0.104 18.5 0.70 0.09 704 1.83 1
1998WT24 C 1998 12 01.491610 11 06 30.270 1.00 -0.524 +06 56 13.70
1.00 -0.029 17.5 0.70 -0.91 704 0.53 1
1998WT24 C 1998 12 01.499180 11 06 32.760 1.00 -0.065 +06 56 09.40
1.00 -0.002 18.1 0.70 -0.31 704 0.07 1
1998WT24 C 1998 12 01.502660 11 06 33.900 1.00 0.082 +06 56 07.80
1.00 0.390 704 0.40 1
1998WT24 C 1998 12 01.506140 11 06 35.050 1.00 0.380 +06 56 06.00
1.00 0.584 18.9 0.70 0.49 704 0.71 1
1998WT24 C 1998 12 01.509620 11 06 36.170 1.00 0.235 +06 56 03.20
1.00 -0.220 18.9 0.70 0.49 704 0.33 1
1998WT24 C 1998 12 01.513100 11 06 37.230 1.00 -0.801 +06 56 01.90
1.00 0.477 18.5 0.70 0.09 704 0.95 1
1998WT24 C 1998 12 02.885010 11 14 28.800 1.00 0.286 +06 42 08.20
1.00 -0.105 17.8 0.70 -0.58 327 0.31 1
1998WT24 C 1998 12 02.888900 11 14 30.180 1.00 1.052 +06 42 06.00
1.00 0.118 327 1.08 1
1998WT24 C 1998 12 02.892800 11 14 31.470 1.00 0.428 +06 42 03.20
1.00 -0.250 327 0.50 1
1998WT24 C 1998 12 04.150220 11 22 03.960 1.00 0.824 +06 28 17.10
1.00 -0.025 046 0.84 1
1998WT24 C 1998 12 04.153830 11 22 05.200 1.00 -0.015 +06 28 14.80
1.00 0.096 046 0.10 1
1998WT24 C 1998 12 04.159140 11 22 07.080 1.00 -0.408 +06 28 11.20
1.00 0.061 046 0.42 1
1998WT24 C 1998 12 04.160460 11 22 07.550 1.00 -0.465 +06 28 10.40
1.00 0.148 046 0.50 1
1998WT24 C 1998 12 04.161180 11 22 07.790 1.00 -0.740 +06 28 10.10
1.00 0.332 046 0.82 1
1998WT24 C 1998 12 04.162790 11 22 08.390 1.00 -0.410 +06 28 09.20
1.00 0.514 16.8 R 0.70 -0.36 046 0.67 1
1998WT24 C 1998 12 06.214510 11 35 10.160 1.00 1.399 +06 03 29.00
1.00 0.459 104 1.50 1
1998WT24 C 1998 12 06.215630 11 35 10.660 1.00 2.440 +06 03 27.50
1.00 -0.185 104 2.49 1
1998WT24 C 1998 12 06.216660 11 35 10.990 1.00 1.461 +06 03 27.00
1.00 0.103 104 1.49 1
1998WT24 C 1998 12 16.846700 12 58 51.520 1.00 0.519 +02 55 50.30
1.00 0.536 18.1 V 0.70 0.53 360 0.77 1
1998WT24 C 1998 12 16.849310 12 58 52.900 1.00 0.211 +02 55 46.70
1.00 0.527 360 0.59 1
1998WT24 C 1998 12 16.851560 12 58 54.110 1.00 0.254 +02 55 43.90
1.00 0.824 360 0.89 1
1998WT24 C 1998 12 17.219660 13 02 16.490 1.00 -0.330 +02 47 01.90
1.00 0.309 18.2 V 0.70 0.62 046 0.47 1
1998WT24 C 1998 12 17.221940 13 02 17.720 1.00 -0.443 +02 46 58.70
1.00 0.307 046 0.56 1
1998WT24 C 1998 12 17.223010 13 02 18.320 1.00 -0.156 +02 46 56.80
1.00 -0.093 046 0.19 1
1998WT24 C 1998 12 18.845580 13 17 34.260 1.00 -1.033 +02 07 45.60
1.00 -0.601 18.1 V 0.70 0.46 402 1.25 1
1998WT24 C 1998 12 18.846970 13 17 35.130 1.00 0.318 +02 07 43.30
1.00 -0.821 402 0.92 1
1998WT24 C 1998 12 18.848360 13 17 35.840 1.00 -0.728 +02 07 41.40
1.00 -0.640 402 1.01 1
1998WT24 C 1998 12 27.823290 14 47 51.450 1.00 -0.226 -02 04 16.60
1.00 -0.135 19.0 V 0.70 0.70 402 0.30 1
1998WT24 C 1998 12 27.824680 14 47 52.320 1.00 0.305 -02 04 19.00
1.00 -0.057 402 0.36 1
1998WT24 C 1999 11 04.409360 16 55 51.390 1.00 -0.384 -26 57 12.70
1.00 -0.215 413 0.46 1
1998WT24 C 1999 11 04.411020 16 55 52.130 1.00 -0.556 -26 57 14.40
1.00 0.227 413 0.69 1
1998WT24 C 1999 11 04.412710 16 55 53.040 1.00 1.363 -26 57 15.90
1.00 0.908 19.5 R 0.70 0.82 413 1.71 1
1998WT24 C 2000 02 07.433291 01 08 22.620 1.00 -0.814 +06 24 08.20
1.00 0.238 19.3 R 0.70 -0.18 413 0.87 1
1998WT24 C 2000 02 07.435382 01 08 23.050 1.00 0.269 +06 24 10.90
1.00 -0.042 19.4 R 0.70 -0.08 413 0.28 1
1998WT24 C 2000 02 07.437740 01 08 23.420 1.00 -0.223 +06 24 14.30
1.00 -0.001 19.7 R 0.70 0.22 413 0.23 1
1998WT24 C 2000 02 08.437120 01 11 15.180 1.00 0.264 +06 47 57.00
1.00 0.176 19.5 R 0.70 0.01 413 0.34 1
1998WT24 C 2000 02 08.439140 01 11 15.530 1.00 0.353 +06 47 59.80
1.00 0.123 19.0 R
The site also says that these positions are in a form for orbfit.
I hope this helps.
Bob Elliott
750 Fall Creek, Wisconsin. USA