SonotaCo data.[]{data-label="t3"}

![The heliocentric distances of the ascending and descending nodes of the December Monocerotids and November Orionids as a function of the longitude of the Sun, compared with the ascending and descending nodes of the comet C/1917 F1 Mellish. Range of the theoretical radiants computed by DOSMETH for the parent comet is displayed with a heavy line. Vertical lines represent the maxima of the meteor showers.[]{data-label="F6"}](fig6.eps){width="8.0cm"}

  ------------- --------------- --------------- ------------ --------------- -------------- -------------- ------------- ----------- ----------
    a \[AU\]           e           q \[AU\]          i          $\omega$        $\Omega$       $v_{g}$      $L_{\odot}$      RA          DC
   $1.8\pm1.5$   $0.95\pm0.02$   $0.11\pm0.02$   $30.2\pm7$   $144.7\pm4.9$   $78.6\pm3.1$   $39.7\pm2.4$   254.1-261.6   $107\pm4$   $14\pm2$
  ------------- --------------- --------------- ------------ --------------- -------------- -------------- ------------- ----------- ----------

![The beginning and terminal heights of the December Monocerotids and November Orionids as a function of the photometric mass.[]{data-label="F7"}](fig7.eps){width="8.0cm"}

The database does not contain any December Canis Minorids, yet we tried to find some representatives among the high quality data set. The published mean orbit of December Canis Minorids has a very low semimajor axis, $\omega$ similar to a previously published value, and $i$ and $\Omega$ similar to MON. According to SonotaCo , the shower might be active from November 30 until December 9, with the maximum on December 4. Nevertheless, 