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Link to original content: http://www.minorplanetcenter.net/iau/NEO/pccp_tabular.html
The Possible Comet Confirmation Page
  • Processing (Info)

    • The Possible Comet (and A/ objects) Confirmation Page

    Please ensure you are familiar with the notes at the bottom of this page.
    Also, additional notes on the NEOCP and information on how we remove objects on the NEOCP are also available here.

    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.

    Page last updated on Nov. 28.132 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  
    P122bOL  P122bOL 094 94      2024 11 22.6   147.4610  09 49.8   057.0270  -32 58   29.5  20.5   J2460642.143083 Updated Nov. 27.64 UT   B    19    5.02   15.0    0.506 
    v17oct4  v17oct4 100100      2024 10 18.0   274.9485  18 19.8   076.2918  -13 42   28.4  21.6   J2460642.178759 Updated Nov. 27.68 UT       2    0.00   18.4   41.133 
    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. 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

    Select your viewing point: Geocentric Observatory code
    Longitude ° E, latitude °, altitude m.
    Longitudes and latitudes should be entered in decimal degrees.
    Ephemeris interval: 1 hour 30 mins 10 mins 1 min
    Start ephemerides at now + hours
    Display positions in: truncated sexagesimal or full sexagesimal or decimal units
    Display motions as: "/sec, "/min, "/hr or °/day.
    Total motion and direction Separate R.A. and Decl. coordinate motions Separate R.A. and Decl. sky motions
    Full output Brief output
    Suppress output at or when object's altitude is below °.

    The following objects either display comet-like orbits but have not had their cometary nature confirmed, or are suspected of displaying cometary activity. To get ephemerides of these objects, refer to the MPC ephemeris service. Please submit reports of cometary activity here.
      Desig.       R.A.       Decl.       Magn.       Elong.    
    A/2010 LN13511 02.6-19 1429.073
    A/2018 V311 02.0+14 0927.985
    A/2018 W316 13.4+28 2921.450
    A/2019 G307 16.2+01 1028.7132
    A/2019 N207 50.5+79 4724.6117
    A/2019 O411 51.6-00 4826.968
    A/2019 Q214 24.2-26 0130.226
    A/2019 T111 51.0-13 3123.763
    A/2020 A100 49.5+41 1529.6132
    A/2020 B116 10.5-36 4732.816
    A/2020 H910 47.0+54 4529.8103
    A/2020 M410 50.9+03 1125.583
    A/2021 E205 11.8+35 3925.9161
    A/2021 E423 06.5+43 4523.1114
    A/2022 B303 32.2-31 5426.3126
    A/2023 H402 25.2+29 5825.3154
    A/2023 R312 55.5-09 5127.449
    A/2024 D110 44.6+51 5421.3102
    A/2024 G823 55.9-19 0824.9105
    2007 SA2406 38.8+09 4322.6144
    2008 BJ2213 44.1-04 3221.040
    2009 KF3712 37.9+05 4023.560
    2010 KG4302 04.1+30 5420.7149
    2010 LH1505 38.8+30 3920.8159
    2011 UG10418 33.2-01 2824.439
    2012 KA5111 01.7-38 3526.368
    2014 XK610 02.6+25 4226.0102
    2017 FL3621 52.8-02 3622.284
    2018 BJ1101 17.9+11 0120.9136
    2019 AV411 53.3-02 1624.467
    2021 AY804 18.8+23 4420.7178
    2021 TR8117 46.7+03 0726.033
    2022 AB818 32.2+03 4126.642
    2022 DQ1703 06.4-16 3324.6138
    2022 OF6009 32.7+04 1428.0102
    2023 BN1316 36.1-24 1024.56
    2023 RS6101 47.4+29 5321.2146
    2024 CR923 12.3+00 4023.2103
    2024 PN718 22.4+25 5419.756
    (7341)15 10.9-21 1520.915
    (523676)13 54.3-19 2724.033

    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.