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    • The Possible Comet Confirmation Page

    Please ensure you are familiar with the notes at the bottom of this page.

    The objects listed on this page may be comets. All reports of new cometary activity should be made using the following web form (Reports of activity for known comets made to the above web form will be ignored.)
    New reports of cometary activity must be made using this web form in order to be considered for inclusion in any resulting MPEC announcing cometary status.

    IF YOU DO NOT DETECT CLEAR COMETARY ACTIVITY, DO NOT CLAIM THAT AN OBJECT IS A COMET.

    We will be operating a "reputation based" system for judging whether claims are valid. If you report cometary activity for an object later shown to be asteroidal, you may find that future reports of cometary activity by your observing station will be ignored by the MPC.

    Go to the NEOCP

    Page last updated on May 26.031 UTC.

    Problems? Comments?

    Select object(s) from the current list of possible comets needing confirmation (NEO desirability score, discovery date, rough current position and magnitude given, as well as number of observations, arc, nominal H and number of days since it was observed):

    All objects with V = to , with Decl. between ° and °, with an NEO desirability score of % to %

    or just the objects selected below:

      Temp Desig      Score      Discovery   R.A.     Decl.     V   Updated  Note     NObs     Arc    H    Not Seen/dys  
    A10xB7g  A10xB7g 082 82      2021 05 14.6   356.0056  23 44.0   084.9848  -05 00   32.7  17.3   J2459360.226142 Updated May 25.73 UT       15    10.03   12.1    1.411 
    A10xbi7  A10xbi7 035 35      2021 05 13.5   314.4287  20 57.7   069.6038  -20 23   30.8  19.2   J2459360.191109 Updated May 25.69 UT       34    5.65   11.0    6.837 
    P11g7TN  P11g7TN 035 35      2021 05 10.4   221.5388  14 46.2   086.1959  -03 48   27.9  22.1   J2459360.190047 Updated May 25.69 UT       44    59.52   15.3    6.882 
    1581K01  1581K01 035 35      2021 05 09.3   294.6008  19 38.4   039.3319  -50 40   30.6  19.4   J2459360.192840 Updated May 25.69 UT       59    14.06   16.2    2.640 
    A10wotD  A10wotD 035 35      2021 04 11.2   099.5679  06 38.3   070.1221  -19 52   30.6  19.4   J2459360.200010 Updated May 25.70 UT       79   196.79    8.9    6.691 
    C5DDQL2  C5DDQL2 035 35      2021 04 08.2   161.3384  10 45.4   104.2298  +14 13   27.9  22.1   J2459358.180743 Updated May 23.68 UT       62   145.64   14.2    9.778 
    P11ebKr  P11ebKr 035 35      2021 04 01.3   138.7931  09 15.2   099.7202  +09 43   27.4  22.6   J2459360.174926 Updated May 25.67 UT       41    92.90   14.6   12.838 
    The information in the table is available in a text file. The layout of this file matches the table layout exactly, except that the R.A. is converted to decimal hours and the Decl. to decimal degrees.

    Select your viewing point:

    Geocentric Observatory code

    Longitude ° E, latitude °, altitude m.

    Longitudes and latitudes should be entered in decimal degrees.

    Other options:

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    Start ephemerides at now + hours

    Display positions in: truncated sexagesimal or full sexagesimal or decimal units

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    Suppress output at or when object's altitude is below °.

    If you need to delete one of your discoveries as "does not exist" or "artificial", or flag it as "cometary", etc., please submit the corresponding "action code" through our Submit Action Code Form

    Notes on how to begin your own astrometric program are available.

    Please ensure that you have read the additional notes on the NEOCP (which are relevant to the PCCP).

    Please do not report observations of non-NEOCP objects in the same message as observations of objects on this page!

    Please report unsuccessful attempts to detect objects listed here that are NOT listed as `updated' or that have not been updated in the past 24 hours using the NEOCP Blog.

    Please note that observations and orbits of objects accessible via this service are made available only for your personal use. They are not to be promulgated via any medium. The data are preliminary until they appear on an MPEC or MPS.

    You can now access ephemerides for the variant orbits used in the uncertainty plots from the pages listing the offsets from the nominal solutions.

    Please read (or here) about the coloration used in the uncertainty plots.

    You are reminded that a cross-reference of designations that have appeared here previously is available elsewhere.

    If none of these objects are within the capabilities of your system, check out the Dates of Last Observation of NEOs not seen recently (in R.A. order), the list of bright recovery opportunities, or the Spaceguard Central Node's Priority List for alternate useful targets.