Cometary Science Archive
Cometary Science Archive

Comet P/2012 R1 = P/2006 Q2 (LONEOS)

Discovery

Discovered as an apparently asteroidal object discovered in the course of the LONEOS survey on CCD images taken on 2006 Aug. 29; it was found (after posting on the Minor Planet Center's NEOCP webpage) to show cometary appearance by other CCD astrometrists, and it was given the designation P/2006 Q2 (LONEOS) when announced on by the International Astronomical Union's Central Bureau for Astronomical Telegrams on IAU Circular No. 8743.

The 2012 recovery was announced by the Central Bureau for Astronomical Telegrams on CBET 3219.

Orbit

Orbital Elements

The following orbital elements are taken from Minor Planet Electronic Circular 2012-R28.
    P/2012 R1 (LONEOS)      orbital elements by G. V. Williams                          
Epoch 2012 Aug. 21.0 TT = JDT 2456160.5                                         
T 2012 Aug. 22.7902 TT                                
q   1.336152             (2000.0)            P               Q                  
n   0.1654060      Peri.   97.1937      +0.9482165      +0.3060724              
a   3.286764       Node   245.0136      -0.3156264      +0.8780490              
e   0.593475       Incl.    5.3735      -0.0355734      +0.3678990              
P   5.96                                                                        
From 153 observations 2006 Aug. 29-2012 Sept. 12, mean residual 0".5.           
                                                                                

      

Ephemeris

Ephemeris for the period 2012 June 22 – Dec. 31 (based on above elements):
                                                                                
    P/2012 R1 (LONEOS)          from orbital elements on MPEC 2012-R28
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase  Mag.
2012 06 22    22 07.38   -02 23.2    0.738    1.506   117.5    36.8  20.6
2012 06 23    22 09.65   -02 00.5    0.729    1.501   117.8    36.8  20.6
2012 06 24    22 11.91   -01 37.6    0.720    1.496   118.0    36.8  20.5
2012 06 25    22 14.18   -01 14.4    0.711    1.492   118.3    36.9  20.5
2012 06 26    22 16.45   -00 51.1    0.703    1.487   118.5    36.9  20.5
2012 06 27    22 18.73   -00 27.6    0.695    1.482   118.8    37.0  20.4
2012 06 28    22 21.01   -00 03.8    0.686    1.477   119.0    37.0  20.4
2012 06 29    22 23.30   +00 20.1    0.678    1.473   119.3    37.0  20.3
2012 06 30    22 25.58   +00 44.1    0.670    1.468   119.5    37.1  20.3
2012 07 01    22 27.88   +01 08.4    0.663    1.463   119.8    37.1  20.3
2012 07 02    22 30.17   +01 32.8    0.655    1.459   120.0    37.1  20.2
2012 07 03    22 32.48   +01 57.4    0.648    1.455   120.2    37.1  20.2
2012 07 04    22 34.78   +02 22.1    0.640    1.450   120.5    37.2  20.1
2012 07 05    22 37.09   +02 47.0    0.633    1.446   120.7    37.2  20.1
2012 07 06    22 39.40   +03 12.0    0.626    1.442   120.9    37.2  20.1
2012 07 07    22 41.72   +03 37.1    0.619    1.438   121.1    37.2  20.0
2012 07 08    22 44.04   +04 02.4    0.612    1.434   121.4    37.3  20.0
2012 07 09    22 46.36   +04 27.7    0.605    1.430   121.6    37.3  20.0
2012 07 10    22 48.68   +04 53.2    0.598    1.426   121.8    37.3  19.9
2012 07 11    22 51.01   +05 18.7    0.592    1.422   122.0    37.3  19.9
2012 07 12    22 53.34   +05 44.3    0.586    1.418   122.2    37.3  19.9
2012 07 13    22 55.66   +06 10.0    0.579    1.414   122.4    37.4  19.8
2012 07 14    22 57.99   +06 35.7    0.573    1.411   122.6    37.4  19.8
2012 07 15    23 00.33   +07 01.4    0.567    1.407   122.8    37.4  19.8
2012 07 16    23 02.66   +07 27.2    0.561    1.404   123.0    37.4  19.7
2012 07 17    23 04.99   +07 53.0    0.556    1.400   123.2    37.4  19.7
2012 07 18    23 07.32   +08 18.7    0.550    1.397   123.4    37.4  19.7
2012 07 19    23 09.65   +08 44.5    0.545    1.394   123.6    37.4  19.6
2012 07 20    23 11.98   +09 10.2    0.539    1.391   123.8    37.4  19.6
2012 07 21    23 14.30   +09 35.8    0.534    1.387   124.1    37.4  19.6
2012 07 22    23 16.63   +10 01.4    0.529    1.384   124.3    37.3  19.5
2012 07 23    23 18.95   +10 26.9    0.524    1.382   124.5    37.3  19.5
2012 07 24    23 21.27   +10 52.3    0.519    1.379   124.7    37.3  19.5
2012 07 25    23 23.58   +11 17.6    0.514    1.376   124.9    37.3  19.4
2012 07 26    23 25.89   +11 42.7    0.510    1.373   125.1    37.2  19.4
2012 07 27    23 28.20   +12 07.8    0.505    1.371   125.3    37.2  19.4
2012 07 28    23 30.50   +12 32.6    0.501    1.368   125.5    37.2  19.4
2012 07 29    23 32.80   +12 57.3    0.496    1.366   125.7    37.1  19.3
2012 07 30    23 35.09   +13 21.7    0.492    1.364   125.9    37.1  19.3
2012 07 31    23 37.38   +13 46.0    0.488    1.361   126.2    37.0  19.3
2012 08 01    23 39.66   +14 10.0    0.484    1.359   126.4    37.0  19.3
2012 08 02    23 41.92   +14 33.8    0.480    1.357   126.6    36.9  19.2
2012 08 03    23 44.18   +14 57.3    0.477    1.355   126.8    36.8  19.2
2012 08 04    23 46.43   +15 20.5    0.473    1.353   127.1    36.7  19.2
2012 08 05    23 48.67   +15 43.4    0.469    1.352   127.3    36.6  19.2
2012 08 06    23 50.90   +16 06.0    0.466    1.350   127.6    36.6  19.1
2012 08 07    23 53.11   +16 28.3    0.463    1.348   127.8    36.5  19.1
2012 08 08    23 55.31   +16 50.2    0.460    1.347   128.1    36.3  19.1
2012 08 09    23 57.49   +17 11.7    0.456    1.345   128.3    36.2  19.1
2012 08 10    23 59.65   +17 32.8    0.453    1.344   128.6    36.1  19.1
2012 08 11    00 01.80   +17 53.5    0.451    1.343   128.9    36.0  19.0
2012 08 12    00 03.93   +18 13.8    0.448    1.342   129.2    35.8  19.0
2012 08 13    00 06.04   +18 33.7    0.445    1.341   129.5    35.7  19.0
2012 08 14    00 08.12   +18 53.0    0.442    1.340   129.8    35.5  19.0
2012 08 15    00 10.19   +19 11.9    0.440    1.339   130.1    35.3  19.0
2012 08 16    00 12.23   +19 30.3    0.437    1.338   130.4    35.2  19.0
2012 08 17    00 14.24   +19 48.2    0.435    1.338   130.8    35.0  19.0
2012 08 18    00 16.23   +20 05.5    0.433    1.337   131.1    34.8  18.9
2012 08 19    00 18.19   +20 22.3    0.431    1.337   131.5    34.6  18.9
2012 08 20    00 20.13   +20 38.6    0.429    1.337   131.8    34.3  18.9
2012 08 21    00 22.03   +20 54.3    0.427    1.336   132.2    34.1  18.9
2012 08 22    00 23.91   +21 09.4    0.425    1.336   132.6    33.9  18.9
2012 08 23    00 25.75   +21 23.9    0.423    1.336   133.0    33.6  18.9
2012 08 24    00 27.57   +21 37.8    0.422    1.336   133.4    33.3  18.9
2012 08 25    00 29.35   +21 51.2    0.420    1.336   133.8    33.1  18.9
2012 08 26    00 31.10   +22 03.8    0.418    1.337   134.3    32.8  18.9
2012 08 27    00 32.81   +22 15.9    0.417    1.337   134.7    32.5  18.9
2012 08 28    00 34.49   +22 27.4    0.416    1.337   135.2    32.2  18.9
2012 08 29    00 36.14   +22 38.2    0.415    1.338   135.7    31.8  18.9
2012 08 30    00 37.75   +22 48.3    0.413    1.339   136.1    31.5  18.8
2012 08 31    00 39.32   +22 57.8    0.412    1.339   136.6    31.2  18.8
2012 09 01    00 40.85   +23 06.6    0.411    1.340   137.2    30.8  18.8
2012 09 02    00 42.34   +23 14.8    0.411    1.341   137.7    30.4  18.8
2012 09 03    00 43.79   +23 22.3    0.410    1.342   138.2    30.0  18.8
2012 09 04    00 45.21   +23 29.1    0.409    1.343   138.8    29.6  18.8
2012 09 05    00 46.58   +23 35.3    0.408    1.345   139.4    29.2  18.8
2012 09 06    00 47.90   +23 40.8    0.408    1.346   139.9    28.8  18.8
2012 09 07    00 49.19   +23 45.6    0.407    1.347   140.5    28.4  18.8
2012 09 08    00 50.43   +23 49.7    0.407    1.349   141.2    27.9  18.8
2012 09 09    00 51.63   +23 53.1    0.407    1.351   141.8    27.5  18.9
2012 09 10    00 52.79   +23 55.9    0.407    1.352   142.4    27.0  18.9
2012 09 11    00 53.90   +23 57.9    0.407    1.354   143.1    26.5  18.9
2012 09 12    00 54.97   +23 59.3    0.407    1.356   143.8    26.0  18.9
2012 09 13    00 55.99   +24 00.1    0.407    1.358   144.4    25.5  18.9
2012 09 14    00 56.98   +24 00.1    0.407    1.360   145.1    25.0  18.9
2012 09 15    00 57.92   +23 59.5    0.408    1.362   145.8    24.5  18.9
2012 09 16    00 58.81   +23 58.3    0.408    1.364   146.6    23.9  18.9
2012 09 17    00 59.67   +23 56.4    0.409    1.367   147.3    23.4  18.9
2012 09 18    01 00.49   +23 53.8    0.409    1.369   148.1    22.8  18.9
2012 09 19    01 01.26   +23 50.7    0.410    1.372   148.8    22.3  18.9
2012 09 20    01 02.00   +23 46.9    0.411    1.374   149.6    21.7  18.9
2012 09 21    01 02.70   +23 42.6    0.412    1.377   150.4    21.1  19.0
2012 09 22    01 03.37   +23 37.6    0.413    1.380   151.2    20.5  19.0
2012 09 23    01 04.00   +23 32.1    0.414    1.383   152.0    19.9  19.0
2012 09 24    01 04.59   +23 26.1    0.416    1.386   152.8    19.3  19.0
2012 09 25    01 05.16   +23 19.5    0.417    1.389   153.6    18.7  19.0
2012 09 26    01 05.69   +23 12.4    0.419    1.392   154.4    18.1  19.0
2012 09 27    01 06.20   +23 04.8    0.420    1.395   155.2    17.5  19.1
2012 09 28    01 06.67   +22 56.8    0.422    1.398   156.1    16.9  19.1
2012 09 29    01 07.12   +22 48.3    0.424    1.402   156.9    16.3  19.1
2012 09 30    01 07.54   +22 39.3    0.426    1.405   157.7    15.7  19.1
2012 10 01    01 07.94   +22 29.9    0.428    1.409   158.6    15.1  19.1
2012 10 02    01 08.31   +22 20.2    0.431    1.412   159.4    14.4  19.2
2012 10 03    01 08.66   +22 10.1    0.433    1.416   160.2    13.8  19.2
2012 10 04    01 08.99   +21 59.6    0.436    1.420   161.0    13.2  19.2
2012 10 05    01 09.30   +21 48.8    0.439    1.423   161.9    12.6  19.2
2012 10 06    01 09.60   +21 37.7    0.442    1.427   162.7    12.0  19.3
2012 10 07    01 09.88   +21 26.3    0.445    1.431   163.4    11.5  19.3
2012 10 08    01 10.15   +21 14.7    0.448    1.435   164.2    10.9  19.3
2012 10 09    01 10.40   +21 02.8    0.451    1.439   164.9    10.4  19.4
2012 10 10    01 10.64   +20 50.8    0.455    1.444   165.7     9.9  19.4
2012 10 11    01 10.87   +20 38.5    0.458    1.448   166.3     9.4  19.4
2012 10 12    01 11.10   +20 26.1    0.462    1.452   167.0     8.9  19.4
2012 10 13    01 11.32   +20 13.6    0.466    1.456   167.5     8.5  19.5
2012 10 14    01 11.54   +20 00.9    0.470    1.461   168.1     8.1  19.5
2012 10 15    01 11.75   +19 48.2    0.475    1.465   168.5     7.8  19.5
2012 10 16    01 11.97   +19 35.4    0.479    1.470   168.9     7.5  19.6
2012 10 17    01 12.18   +19 22.6    0.484    1.474   169.2     7.3  19.6
2012 10 18    01 12.40   +19 09.8    0.489    1.479   169.3     7.2  19.6
2012 10 19    01 12.62   +18 57.0    0.493    1.484   169.4     7.1  19.7
2012 10 20    01 12.85   +18 44.2    0.499    1.489   169.4     7.1  19.7
2012 10 21    01 13.08   +18 31.5    0.504    1.494   169.3     7.1  19.8
2012 10 22    01 13.33   +18 18.9    0.509    1.498   169.1     7.2  19.8
2012 10 23    01 13.58   +18 06.4    0.515    1.503   168.8     7.4  19.8
2012 10 24    01 13.84   +17 54.0    0.521    1.508   168.4     7.6  19.9
2012 10 25    01 14.12   +17 41.7    0.527    1.513   167.9     7.9  19.9
2012 10 26    01 14.40   +17 29.6    0.533    1.519   167.4     8.2  19.9
2012 10 27    01 14.70   +17 17.6    0.539    1.524   166.8     8.6  20.0
2012 10 28    01 15.01   +17 05.9    0.546    1.529   166.1     9.0  20.0
2012 10 29    01 15.34   +16 54.3    0.552    1.534   165.4     9.4  20.1
2012 10 30    01 15.67   +16 43.0    0.559    1.540   164.7     9.8  20.1
2012 10 31    01 16.03   +16 31.8    0.566    1.545   164.0    10.2  20.2
2012 11 01    01 16.40   +16 20.9    0.573    1.550   163.2    10.7  20.2
2012 11 02    01 16.78   +16 10.3    0.581    1.556   162.4    11.1  20.2
2012 11 03    01 17.19   +15 59.9    0.588    1.561   161.6    11.6  20.3
2012 11 04    01 17.61   +15 49.7    0.596    1.567   160.8    12.0  20.3
2012 11 05    01 18.04   +15 39.8    0.604    1.572   159.9    12.5  20.4
2012 11 06    01 18.50   +15 30.2    0.612    1.578   159.1    12.9  20.4
2012 11 07    01 18.97   +15 20.9    0.620    1.584   158.2    13.4  20.5
2012 11 08    01 19.46   +15 11.8    0.629    1.590   157.4    13.9  20.5
2012 11 09    01 19.96   +15 03.1    0.637    1.595   156.5    14.3  20.5
2012 11 10    01 20.49   +14 54.6    0.646    1.601   155.7    14.8  20.6
2012 11 11    01 21.04   +14 46.5    0.655    1.607   154.8    15.2  20.6
2012 11 12    01 21.60   +14 38.6    0.664    1.613   153.9    15.6  20.7
2012 11 13    01 22.18   +14 31.0    0.673    1.619   153.1    16.1  20.7
2012 11 14    01 22.79   +14 23.8    0.683    1.625   152.2    16.5  20.8
2012 11 15    01 23.41   +14 16.8    0.692    1.631   151.3    16.9  20.8
2012 11 16    01 24.05   +14 10.2    0.702    1.637   150.5    17.3  20.9
2012 11 17    01 24.71   +14 03.8    0.712    1.643   149.6    17.7  20.9
2012 11 18    01 25.39   +13 57.8    0.722    1.649   148.7    18.1  21.0
2012 11 19    01 26.10   +13 52.1    0.732    1.655   147.9    18.5  21.0
2012 11 20    01 26.82   +13 46.6    0.743    1.661   147.0    18.9  21.1
2012 11 21    01 27.56   +13 41.5    0.753    1.667   146.2    19.3  21.1
2012 11 22    01 28.31   +13 36.7    0.764    1.673   145.3    19.6  21.2
2012 11 23    01 29.09   +13 32.1    0.775    1.680   144.5    20.0  21.2
2012 11 24    01 29.89   +13 27.9    0.786    1.686   143.7    20.3  21.2
2012 11 25    01 30.70   +13 23.9    0.797    1.692   142.8    20.6  21.3
2012 11 26    01 31.53   +13 20.2    0.808    1.698   142.0    21.0  21.3
2012 11 27    01 32.38   +13 16.8    0.820    1.705   141.2    21.3  21.4
2012 11 28    01 33.25   +13 13.7    0.832    1.711   140.3    21.6  21.4
2012 11 29    01 34.14   +13 10.8    0.843    1.718   139.5    21.9  21.5
2012 11 30    01 35.04   +13 08.2    0.855    1.724   138.7    22.2  21.5
2012 12 01    01 35.95   +13 05.9    0.868    1.730   137.9    22.5  21.6
2012 12 02    01 36.89   +13 03.8    0.880    1.737   137.1    22.7  21.6
2012 12 03    01 37.84   +13 02.0    0.892    1.743   136.3    23.0  21.7
2012 12 04    01 38.80   +13 00.4    0.905    1.750   135.5    23.3  21.7
2012 12 05    01 39.78   +12 59.0    0.917    1.756   134.7    23.5  21.8
2012 12 06    01 40.78   +12 57.9    0.930    1.763   133.9    23.7  21.8
2012 12 07    01 41.79   +12 57.0    0.943    1.769   133.1    24.0  21.9
2012 12 08    01 42.82   +12 56.3    0.956    1.776   132.3    24.2  21.9
2012 12 09    01 43.86   +12 55.9    0.970    1.783   131.6    24.4  21.9
2012 12 10    01 44.91   +12 55.6    0.983    1.789   130.8    24.6  22.0
2012 12 11    01 45.98   +12 55.6    0.997    1.796   130.0    24.8  22.0
2012 12 12    01 47.06   +12 55.8    1.010    1.803   129.3    25.0  22.1
2012 12 13    01 48.16   +12 56.1    1.024    1.809   128.5    25.2  22.1
2012 12 14    01 49.27   +12 56.7    1.038    1.816   127.7    25.4  22.2
2012 12 15    01 50.40   +12 57.5    1.052    1.823   127.0    25.6  22.2
2012 12 16    01 51.54   +12 58.4    1.066    1.829   126.2    25.7  22.3
2012 12 17    01 52.69   +12 59.5    1.081    1.836   125.5    25.9  22.3
2012 12 18    01 53.85   +13 00.8    1.095    1.843   124.7    26.0  22.4
2012 12 19    01 55.03   +13 02.3    1.110    1.850   124.0    26.2  22.4
2012 12 20    01 56.22   +13 03.9    1.124    1.856   123.3    26.3  22.4
2012 12 21    01 57.42   +13 05.7    1.139    1.863   122.5    26.4  22.5
2012 12 22    01 58.63   +13 07.7    1.154    1.870   121.8    26.6  22.5
2012 12 23    01 59.86   +13 09.8    1.169    1.877   121.1    26.7  22.6
2012 12 24    02 01.09   +13 12.0    1.184    1.884   120.4    26.8  22.6
2012 12 25    02 02.34   +13 14.4    1.200    1.890   119.6    26.9  22.7
2012 12 26    02 03.60   +13 16.9    1.215    1.897   118.9    27.0  22.7
2012 12 27    02 04.86   +13 19.5    1.231    1.904   118.2    27.1  22.7
2012 12 28    02 06.14   +13 22.3    1.246    1.911   117.5    27.2  22.8
2012 12 29    02 07.43   +13 25.2    1.262    1.918   116.8    27.2  22.8
2012 12 30    02 08.72   +13 28.2    1.278    1.925   116.1    27.3  22.9
2012 12 31    02 10.03   +13 31.3    1.294    1.932   115.4    27.4  22.9

H = 19.5, 2.5n = 10  (magnitude parameters from 2006 apparition)

      


Observations

Astrometry

Astrometric observations of this comet from the Minor Planet Center archive are available here.

Links