• MPC Preparation (Info)

  • MPEC 2021-F18 : 2021 FB

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    M.P.E.C. 2021-F18                                Issued 2021 March 18, 00:42 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets and routine data on comets.  They are published
        on behalf of Division F of the International Astronomical Union by the
              Minor Planet Center, Smithsonian Astrophysical Observatory,
                              Cambridge, MA 02138, U.S.A.
    
                 Prepared using the Tamkin Foundation Computer Network
    
                                  MPC@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                     2021 FB                                 
    
    
    Observations:
         K21F00B* C2021 03 17.04965 12 01 59.72 +28 41 52.5          17.1 RoEF018K88
         K21F00B  C2021 03 17.04995 12 01 58.65 +28 41 43.7          17.3 RoEF018K88
         K21F00B  C2021 03 17.05025 12 01 57.58 +28 41 34.9          17.4 RoEF018K88
         K21F00B  C2021 03 17.05055 12 01 56.51 +28 41 25.5          17.3 RoEF018K88
         K21F00B  C2021 03 17.06382 12 01 09.29 +28 34 44.8          17.2 RoEF018K88
         K21F00B  C2021 03 17.06412 12 01 08.20 +28 34 36.0          17.2 RoEF018K88
         K21F00B  C2021 03 17.06442 12 01 07.11 +28 34 27.0          17.3 RoEF018K88
         K21F00B  C2021 03 17.06472 12 01 06.10 +28 34 17.8          17.3 RoEF018K88
         K21F00B  C2021 03 17.06531 12 01 03.98 +28 33 59.9          17.3 RoEF018K88
         K21F00B  C2021 03 17.06561 12 01 02.93 +28 33 50.5          17.4 RoEF018K88
         K21F00B  C2021 03 17.06591 12 01 01.89 +28 33 42.4          17.2 RoEF018K88
         K21F00B  C2021 03 17.06621 12 01 00.78 +28 33 32.5          17.4 RoEF018K88
         K21F00B KC2021 03 17.06852 12 00 55.15 +28 33 17.0          18.1 GVEF018108
         K21F00B KC2021 03 17.07188 12 00 43.18 +28 31 35.0          17.1 GVEF018108
         K21F00B KC2021 03 17.07524 12 00 31.24 +28 29 54.9          18.1 GVEF018108
         K21F00B KC2021 03 17.08187 12 00 07.64 +28 26 33.8          17.2 GVEF018108
         K21F00B  C2021 03 17.08767 11 59 45.24 +28 22 42.5          17.7 RoEF018K88
         K21F00B  C2021 03 17.08797 11 59 44.15 +28 22 33.1          17.5 RoEF018K88
         K21F00B  C2021 03 17.08827 11 59 43.15 +28 22 24.4          17.5 RoEF018K88
         K21F00B  C2021 03 17.08857 11 59 42.09 +28 22 15.1          17.5 RoEF018K88
         K21F00B  C2021 03 17.08886 11 59 41.02 +28 22 05.9          17.4 RoEF018K88
         K21F00B  C2021 03 17.08916 11 59 39.99 +28 21 57.2          17.4 RoEF018K88
         K21F00B  C2021 03 17.08946 11 59 38.95 +28 21 47.8          17.5 RoEF018K88
         K21F00B  C2021 03 17.08976 11 59 37.91 +28 21 38.9          17.1 RoEF018K88
         K21F00B KC2021 03 17.12688 11 57 29.58 +28 02 48.0          17.3 RoEF018K88
         K21F00B KC2021 03 17.12780 11 57 26.43 +28 02 20.0          17.3 RoEF018K88
         K21F00B KC2021 03 17.12870 11 57 23.34 +28 01 52.2          17.5 RoEF018K88
         K21F00B KC2021 03 17.12959 11 57 20.33 +28 01 25.2          17.7 RoEF018K88
         K21F00B KC2021 03 17.13048 11 57 17.25 +28 00 57.6          17.8 RoEF018K88
         K21F00B KC2021 03 17.13138 11 57 14.25 +28 00 30.8          17.8 RoEF018K88
         K21F00B KC2021 03 17.13496 11 57 02.04 +27 58 41.4          17.6 RoEF018K88
         K21F00B KC2021 03 17.13585 11 56 59.01 +27 58 14.4          17.8 RoEF018K88
         K21F00B KC2021 03 17.13674 11 56 55.99 +27 57 46.7          17.6 RoEF018K88
         K21F00B KC2021 03 17.13998511 57 38.44 +27 55 24.6          18.1 GVEF018U55
         K21F00B KC2021 03 17.14366311 57 26.10 +27 53 41.1          17.5 GVEF018U55
         K21F00B KC2021 03 17.14746711 57 13.34 +27 51 54.3          18.3 GVEF018U55
         K21F00B  C2021 03 17.29758111 48 49.28 +26 42 34.6          18.60gUEF018I41
         K21F00B  C2021 03 17.29792811 48 47.96 +26 42 25.8          18.60gUEF018I41
         K21F00B  C2021 03 17.29854211 48 45.99 +26 42 07.0          18.69gUEF018I41
         K21F00B  C2021 03 17.29888911 48 44.75 +26 41 57.1          18.69gUEF018I41
         K21F00B  C2021 03 17.55462311 35 59.65 +24 36 52.1          18.0 VqEF018900
         K21F00B  C2021 03 17.55842011 35 47.96 +24 35 03.6          18.2 VqEF018900
         K21F00B  C2021 03 17.56221711 35 36.27 +24 33 15.5          18.0 VqEF018900
         K21F00B KC2021 03 17.79375711 25 06.76 +22 40 32.9          18.4 GVEF018595
         K21F00B KC2021 03 17.79563711 25 01.61 +22 39 41.3          18.0 GVEF018595
         K21F00B KC2021 03 17.79751611 24 56.44 +22 38 49.1          18.0 GVEF018595
         K21F00B KC2021 03 17.80226111 24 43.33 +22 36 40.3          17.9 GVEF018595
         K21F00B KC2021 03 17.80414011 24 38.16 +22 35 48.5          18.1 GVEF018595
         K21F00B IC2021 03 17.80451311 24 37.30 +22 35 43.2          18.3 GVEF018L01
         K21F00B KC2021 03 17.80492 11 24 37.56 +22 35 39.4          17.7 GVEF018108
         K21F00B KC2021 03 17.80570611 24 34.03 +22 35 10.5          18.0 GVEF018L01
         K21F00B KC2021 03 17.80690011 24 30.75 +22 34 38.1          17.9 GVEF018L01
         K21F00B KC2021 03 17.80869311 24 25.79 +22 33 49.0          18.0 GVEF018L01
         K21F00B KC2021 03 17.80929111 24 24.14 +22 33 32.5          18.2 GVEF018L01
         K21F00B KC2021 03 17.80968811 24 24.01 +22 32 08.2          17.9 GVEF018J95
         K21F00B KC2021 03 17.81057011 24 20.62 +22 32 57.8          18.5 GVEF018L01
         K21F00B KC2021 03 17.81099411 24 20.47 +22 31 32.2          18.2 GVEF018J95
         K21F00B KC2021 03 17.81160211 24 17.76 +22 32 29.5          18.5 GVEF018L01
         K21F00B KC2021 03 17.81163 11 24 19.13 +22 32 35.9          17.7 GVEF018108
         K21F00B KC2021 03 17.81178111 24 18.71 +22 32 27.1          18.2 GVEF018K63
         K21F00B KC2021 03 17.81232311 24 16.88 +22 30 56.2          18.2 GVEF018J95
         K21F00B KC2021 03 17.81365811 24 13.26 +22 30 20.2          18.2 GVEF018J95
         K21F00B KC2021 03 17.81595511 24 07.17 +22 30 33.5          17.8 GVEF018K63
         K21F00B KC2021 03 17.82633411 23 38.64 +22 25 49.1          18.8 GVEF018K63
         K21F00B KC2021 03 17.82884011 23 31.71 +22 24 42.5          17.9 RqEF018104
         K21F00B KC2021 03 17.83047 11 23 27.24 +22 24 00.4          17.7 GVEF018L39
         K21F00B KC2021 03 17.83060911 23 26.82 +22 23 54.2          17.7 RqEF018104
         K21F00B KC2021 03 17.83168 11 23 23.92 +22 23 27.3          18.0 GVEF018L39
         K21F00B KC2021 03 17.83275511 23 21.28 +22 21 40.3          18.2 GVEF018Z80
         K21F00B KC2021 03 17.83288 11 23 20.55 +22 22 54.6          17.2 GVEF018L39
         K21F00B KC2021 03 17.83325711 23 19.54 +22 22 41.7          17.4 RqEF018104
         K21F00B KC2021 03 17.83358111 23 18.73 +22 22 32.6          17.0 GVEF018K63
         K21F00B KC2021 03 17.83766011 23 07.98 +22 19 26.0          17.9 GVEF018Z80
         K21F00B KC2021 03 17.84369211 22 51.59 +22 16 41.3          18.1 GVEF018Z80
         K21F00B KC2021 03 17.84799 11 22 38.77 +22 15 45.7          18.4 GVEF018130
         K21F00B KC2021 03 17.84985 11 22 33.71 +22 14 54.5          18.7 GVEF018130
         K21F00B KC2021 03 17.85136511 22 30.02 +22 14 11.8          18.4 GVEF018203
         K21F00B KC2021 03 17.85212 11 22 27.44 +22 13 52.0          18.7 GVEF018130
         K21F00B KC2021 03 17.85384 11 22 22.89 +22 13 21.7          17.9 GVEF018G17
         K21F00B 1C2021 03 17.85464 11 22 18.48 +22 12 04.2          18.1 VVEF018033
         K21F00B 1C2021 03 17.85499 11 22 17.56 +22 11 55.0          18.3 VVEF018033
         K21F00B KC2021 03 17.85606911 22 17.14 +22 12 03.6          17.9 GVEF018203
         K21F00B 1C2021 03 17.85717 11 22 11.57 +22 10 54.8          18.0 VVEF018033
         K21F00B KC2021 03 17.85899 11 22 08.78 +22 11 01.7          17.7 GVEF018G17
         K21F00B KC2021 03 17.85952011 22 07.71 +22 10 29.2          17.7 GVEF018203
         K21F00B KC2021 03 17.86414 11 21 54.61 +22 08 40.8          17.9 GVEF018G17
         K21F00B KC2021 03 17.87573 11 21 23.16 +22 03 02.6          17.8 GVEF018L06
         K21F00B KC2021 03 17.87627 11 21 21.71 +22 02 47.9          17.9 GVEF018L06
         K21F00B KC2021 03 17.87730 11 21 18.84 +22 02 19.6          18.2 GVEF018L06
         K21F00B KC2021 03 17.89699 11 20 20.37 +21 53 11.9          17.8 RoEF018K88
         K21F00B KC2021 03 17.90138 11 20 08.43 +21 51 11.4                oEF018K88
         K21F00B KC2021 03 17.90540 11 20 02.59 +21 49 30.4                VEF018204
         K21F00B KC2021 03 17.90970 11 19 50.91 +21 47 32.5                VEF018204
         K21F00B KC2021 03 17.91400 11 19 39.24 +21 45 34.5          18.0 GVEF018204
         K21F00B KC2021 03 17.92304411 19 17.15 +21 40 20.1          17.8 GVEF018Z99
         K21F00B KC2021 03 17.92427111 19 13.87 +21 39 46.9          17.8 GVEF018Z99
         K21F00B KC2021 03 17.92528911 19 11.17 +21 39 19.0          18.0 GVEF018Z99
         K21F00B KC2021 03 17.97306 11 17 05.01 +21 18 51.5          18.4 GVEF018958
         K21F00B KC2021 03 17.97782 11 16 52.34 +21 16 41.2          18.0 GVEF018958
         K21F00B KC2021 03 17.98238 11 16 40.13 +21 14 36.4          18.4 GVEF018958
    
    Observer details:
    033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, C.
        Hoegner, U. Laux, F. Ludwig, B. Stecklum.  Measurer B. Stecklum.  1.34-m
        f/3 Schmidt + CCD.
    104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
        P. Bacci, L. Tesi, G. Fagioli.  0.60-m reflector + CCD.
    108 Montelupo.  Observers M. Tombelli, G. Interrante, A. Mazzanti.  Measurers
        M. Tombelli, F. Bernardi.  0.30-m f/10 Schmidt-Cassegrain + CCD.
    130 Lumezzane.  Observers A. Coffano, W. Marinello, M. Micheli, G. Pizzetti,
        A. Soffiantini.  Measurer W. Marinello.  0.40-m f/5.9 reflector + CCD.
    203 GiaGa Observatory.  Observers S. Foglia, G. Galli.  Measurer G. Galli.
        0.36-m f/5.76 Schmidt-Cassegrain + CCD.
    204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector +
        CCD.
    595 Farra d'Isonzo.  Observer E. Pettarin.  0.40-m f/5.15 reflector + CCD.
    900 Moriyama.  Observer Y. Ikari.  0.26-m f/7.0 reflector + CCD.
    958 Observatoire de Dax.  Observer P. Dupouy.  0.32-m f/4.1 Schmidt-
        Cassegrain.
    G17 BAS Observatory, Scandicci.  Observer L. Grazzini.  0.20-m f/10 Schmidt-
        Cassegrain + CCD + f/6.3 focal reducer.
    I41 Palomar Mountain--ZTF.  Observers B. T. Bolin, V. Bhalerao, C. M.
        Copperwheat, K. P. Deshmukh, C.-Y. Hsu, Z.-Y. Lin, J. Purdum, S. Royle, K.
        Sharma, C. Zhai, Z. T. F. Collaboration.  Measurers B. T. Bolin, D. A.
        Duev, H.-W. Lin, F. J. Masci.  1.2-m f/2.4 Schmidt.
    J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3 Schmidt-Cassegrain
        + CCD.
    K63 G. Pascoli Observatory, Castelvecchio Pascoli.  Observer R. Bacci.  0.41-m
        f/3.2 Newtonian reflector + CCD.
    K88 GINOP-KHK, Piszkesteto.  Observer K. Sarneczky.  0.60-m Schmidt + CCD.
    L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
        + CCD.
    L06 Sormano 2 Observatory, Bellagio Via Lattea.  Observer G. Ventre.  Measurer
        P. Sicoli.  0.36-m Schmidt-Cassegrain + CCD.
    L39 Osservatorio Spica, Signa.  Observer M. Bertini.  0.30-m Newtonian
        reflector + CCD.
    U55 Golden Ears Observatory, Maple Ridge.  Observer B. Kumar.  0.36-m f/2
        Schmidt-Cassegrain + CCD.
    Z80 Northolt Branch Observatory.  Observer G. Wells.  Measurers G. Wells, D.
        Bamberger.  0.25-m f/8.0 Ritchey-Chretien + CCD.
    Z99 Clixby Observatory, Cleethorpes.  Observer A. Mickleburgh.  0.36-m f/8
        Schmidt-Cassegrain + CCD.
    
    Orbital elements:
    2021 FB                                                  Earth MOID = 0.0142 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
    M  16.13779              (2000.0)            P               Q
    n   1.27343174     Peri.   28.79378     +0.88770683     -0.46039081
    a   0.8429832      Node   358.59887     +0.38363532     +0.74458626
    e   0.2557409      Incl.    9.67563     +0.25455948     +0.48335454
    P   0.77           H   26.0           G   0.15           U   7
    Residuals in seconds of arc
    210317 K88  0.0   0.3-    210317 U55  0.0   0.6-    210317 Z80  0.2+  0.3+
    210317 K88  0.0   0.1-    210317 U55  0.4+  0.7+    210317 L39  0.5-  0.1+
    210317 K88  0.1+  0.1+    210317 I41  0.9+  0.2-    210317 104  0.1-  0.1+
    210317 K88  0.1+  0.2-    210317 I41  1.1-  1.1+    210317 K63  0.4-  0.5+
    210317 K88  0.3+  0.3-    210317 I41  0.2+  0.2+    210317 Z80  0.1+  0.2-
    210317 K88  0.0   0.0     210317 I41  0.7-  0.4+    210317 Z80  0.7-  0.2-
    210317 K88  0.4-  0.1+    210317 900  0.1-  0.0     210317 130  0.2-  0.3+
    210317 K88  0.3+  0.1-    210317 900  0.1+  0.3-    210317 130  0.3+  0.0
    210317 K88  0.0   0.1-    210317 900  0.2+  0.2-    210317 203  0.0   0.3-
    210317 K88  0.1+  0.4-    210317 595  0.2-  0.3+    210317 130  0.3-  0.4-
    210317 K88  0.4+  0.5+    210317 595  0.2+  0.1+    210317 G17  0.5-  0.4-
    210317 K88  0.2-  0.3-    210317 595  0.3+  0.7-    210317 033  0.1+  0.2-
    210317 108  0.6-  0.2+    210317 595  0.3-  0.3+    210317 033  0.6+  0.2+
    210317 108  0.5-  0.4-    210317 595  0.2-  0.1-    210317 203  0.1+  0.0
    210317 108  0.2-  1.0+    210317 L01  0.3-  0.3-    210317 033  0.0   0.2-
    210317 108  1.1-  0.4+    210317 108  0.1+  0.8+    210317 G17  0.0   0.5+
    210317 K88  0.3+  0.2+    210317 L01  0.0   0.4-    210317 203  0.3+  0.0
    210317 K88  0.2-  0.1-    210317 L01  0.1+  0.1-    210317 G17  0.5-  0.5+
    210317 K88  0.5+  0.3+    210317 L01  0.1-  0.2-    210317 L06  0.1-  0.1-
    210317 K88  0.3+  0.1+    210317 L01  0.1-  0.3-    210317 L06  0.3+  0.0
    210317 K88  0.4-  0.3-    210317 J95  0.0   0.0     210317 L06  0.5-  0.1-
    210317 K88  0.2-  0.2+    210317 L01  0.1-  0.0     210317 K88  0.0   0.1+
    210317 K88  0.0   0.1-    210317 J95  0.0   0.3-    210317 K88  0.1+  0.6+
    210317 K88  0.1+  0.1+    210317 L01  0.3-  0.1-    210317 204  0.2+  0.0
    210317 K88  0.2+  0.0     210317 108  0.7+  0.5+    210317 204  0.1+  0.1-
    210317 K88  0.2+  0.1+    210317 K63  0.1+  0.4-    210317 204  0.0   0.2-
    210317 K88  0.1-  0.2-    210317 J95  0.1+  0.1-    210317 Z99  0.2+  0.1-
    210317 K88  0.3+  0.1-    210317 J95  0.1+  0.4+    210317 Z99  0.2+  0.2+
    210317 K88  0.3-  0.5-    210317 K63  0.7-  0.0     210317 Z99  0.5+  0.2+
    210317 K88  0.6+  0.2+    210317 K63  0.6-  0.9-    210317 958  0.0   0.1+
    210317 K88  0.3+  0.2+    210317 104  0.3+  0.2+    210317 958  0.4+  0.0
    210317 K88  0.2+  0.4+    210317 L39  0.3+  0.0     210317 958  0.6-  0.0
    210317 K88  0.3+  0.1-    210317 104  0.1-  0.2+
    210317 U55  0.3-  1.5-    210317 L39  0.5+  0.0
    
    Ephemeris:
    2021 FB                  a,e,i = 0.84, 0.26, 10                  q = 0.6274
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 02 16    19 59 03.9 +21 16 22   0.1162  0.9088    44.6   130.3    26.9
    ...
    2021 03 03    19 20 47.3 +27 24 05   0.05556 0.9665    62.1   115.0    24.1
    ...
    2021 03 11    17 55 25.8 +37 15 15   0.02539 0.9920    86.2    92.3    21.3
    ...
    2021 03 17    12 05 08.7 +29 10 12   0.01533 1.0085   151.9    27.7    18.2
    2021 03 18    11 15 58.0 +21 10 14   0.01700 1.0111   158.2    21.4    18.2
    2021 03 19    10 41 13.1 +14 17 55   0.01945 1.0135   157.5    22.1    18.5
    ...
    2021 03 25    09 19 34.7 -04 33 16   0.04080 1.0269   136.0    42.5    20.8
    ...
    2021 04 02    08 54 51.0 -10 59 06   0.07335 1.0410   122.8    53.8    22.4
    ...
    2021 04 17    08 49 32.0 -14 32 23   0.1350  1.0561   109.3    63.8    24.0
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-F18
    


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