[Iaude] MPEC A45: 2017 AT4 [a=1.38,e=0.27,i=2.7,H=26.7]

mpec at si.edu mpec at si.edu
Fri Jan 6 19:20:00 EST 2017


M.P.E.C. 2017-A45                                Issued 2017 Jan. 7, 00:15 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 at CFA.HARVARD.EDU
            URL http://www.minorplanetcenter.net/    ISSN 1523-6714


                                   2017 AT4
 
Observations:
     K17A04T* C2017 01 05.28906 06 41 13.25 +19 26 35.3          19.5 VqEA045G96
     K17A04T  C2017 01 05.28947 06 41 13.53 +19 26 37.5          19.5 VqEA045G96
     K17A04T  C2017 01 05.28992 06 41 13.88 +19 26 40.0          19.7 VqEA045G96
     K17A04T  C2017 01 05.33613 06 41 47.97 +19 30 34.4          19.2 VqEA045I52
     K17A04T  C2017 01 05.33814 06 41 49.47 +19 30 44.0          19.3 VqEA045I52
     K17A04T  C2017 01 05.33856 06 41 49.77 +19 30 46.1          19.4 VqEA045I52
     K17A04T  C2017 01 05.33897 06 41 50.08 +19 30 48.3          19.6 VqEA045I52
     K17A04T  C2017 01 05.42876 06 42 58.15 +19 38 04.2          19.4 VqEA045I52
     K17A04T  C2017 01 05.42917 06 42 58.46 +19 38 05.9          19.5 VqEA045I52
     K17A04T  C2017 01 05.42959 06 42 58.80 +19 38 08.1          19.6 VqEA045I52
     K17A04T  C2017 01 05.43000 06 42 59.13 +19 38 09.9          19.6 VqEA045I52
     K17A04T KC2017 01 05.78585 06 48 32.63 +20 07 18.2          18.6 VSEA045595
     K17A04T KC2017 01 05.80108 06 48 45.22 +20 08 41.6                SEA045595
     K17A04T KC2017 01 05.85059 06 49 28.23 +20 13 04.0          19.3 VqEA045I93
     K17A04T KC2017 01 05.85523 06 49 32.00 +20 13 29.4          19.4 VqEA045I93
     K17A04T KC2017 01 05.85986 06 49 35.78 +20 13 54.9          19.3 VqEA045I93
     K17A04T KC2017 01 05.93877 06 50 35.00 +20 20 29.7          19.7 VSEA045C43
     K17A04T KC2017 01 05.94229 06 50 37.79 +20 20 48.4          19.6 VSEA045C43
     K17A04T KC2017 01 05.94397 06 50 40.58 +20 21 22.6          18.9 RqEA045203
     K17A04T KC2017 01 05.94586 06 50 40.66 +20 21 06.8          18.9 VSEA045C43
     K17A04T KC2017 01 05.94636 06 50 42.97 +20 21 39.8          18.7 VqEA045C77
     K17A04T KC2017 01 05.94674 06 50 42.36 +20 21 44.2          19.7  qEA045104
     K17A04T bC2017 01 05.95066 06 50 45.97 +20 21 55.2          19.7 GUEA045204
     K17A04T KC2017 01 05.95226 06 50 46.71 +20 22 12.5          18.9  qEA045104
     K17A04T KC2017 01 05.95363 06 50 48.68 +20 22 17.5          19.5 VqEA045C77
     K17A04T KC2017 01 05.95669 06 50 50.67 +20 22 27.4          19.1 RqEA045203
     K17A04T KC2017 01 05.96237 06 50 54.68 +20 23 04.8          20.2  qEA045104
     K17A04T KC2017 01 05.98423 06 51 12.36 +20 24 47.8                qEA045203
     K17A04T bC2017 01 05.99153 06 51 18.19 +20 25 23.1                UEA045204
     K17A04T HC2017 01 06.00983 06 51 32.73 +20 26 54.7                UEA045204
     K17A04T  C2017 01 06.29737 06 55 53.63 +20 52 31.4          19.0 RoEA045926
     K17A04T  C2017 01 06.30022 06 55 55.77 +20 52 45.0          19.1 RoEA045926
     K17A04T  C2017 01 06.30256 06 55 57.62 +20 52 57.2          19.3 RoEA045926
     K17A04T KC2017 01 06.78474 07 03 30.89 +21 31 23.2          19.3 RqEA045587
     K17A04T KC2017 01 06.78997 07 03 35.50 +21 31 51.5                qEA045587
     K17A04T KC2017 01 06.89635 07 05 06.99 +21 41 28.9                qEA045160
     K17A04T KC2017 01 06.89773 07 05 08.10 +21 41 36.7          18.9 RqEA045160
     K17A04T KC2017 01 06.89911 07 05 09.26 +21 41 43.8          19.5 RqEA045160
 
Observer details:
104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri, M. D. Grazia.
    Measurers P. Bacci, L. Tesi, G. Fagioli.  0.60-m f/4 reflector + CCD.
160 Castelmartini.  Observers M. Jaeger, E. Prosperi, S. Prosperi, W. Vollmann.
    Measurer E. Prosperi.  0.35-m f/10 Schmidt-Cassegrain + CCD.
203 GiaGa Observatory.  Observers S. Foglia, G. Galli.  Measurer G. Galli.
    0.28-m f/6.8 Schmidt-Cassegrain + CCD.
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.60-m f/4.64 reflector
    + CCD.
587 Sormano.  Observers A. Fumagalli, I. Proserpio, P. Sicoli, A. Testa.
    Measurer F. P. Sicoli.  0.5-m f/6.8 reflector + CCD.
595 Farra d'Isonzo.  Observer E. Pettarin.  0.61-m f/4.0 reflector + CCD.
926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
    M. Schwartz.  0.81-m f/7 Ritchey-Chretien + CCD.
C43 Hoyerswerda.  Observer P. Lindner.  0.30-m f/6.3 Schmidt-Cassegrain + CCD.
C77 Bernezzo Observatory.  Observer A. Mantero.  0.25-m f/4 reflector + CCD.
G96 Mt. Lemmon Survey.  Observer A. D. Grauer.  Measurers E. J. Christensen,
    D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski,
    S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly.
    1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer G. J. Leonard.
    Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
    J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny,
    R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/3.7 reflector + CCD.
 
Orbital elements:
2017 AT4                                                 Earth MOID = 0.0284 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
M  21.51891              (2000.0)            P               Q
n   0.61063644     Peri.    4.84095     -0.37130565     -0.92745173
a   1.3759867      Node   106.96057     +0.85032850     -0.35882994
e   0.2650058      Incl.    2.65654     +0.37292567     -0.10523476
P   1.61           H   26.7           G   0.15           U   6
Residuals in seconds of arc
170105 G96  0.3+  0.1-    170105 I93  0.1+  0.4-    170105 104  0.5+  0.6+
170105 G96  0.0   0.1-    170105 I93  0.2-  0.3-    170105 203  0.1-  0.4-
170105 G96  0.3+  0.1+    170105 I93  0.0   0.0     170105 204  0.2-  0.3-
170105 I52  0.0   0.2+    170105 C43  0.1-  0.4+    170106 204  0.3+  0.2-
170105 I52  0.1+  0.2-    170105 C43  0.3-  1.1+    170106 926  0.8+  1.0+
170105 I52  0.0   0.2-    170105 203  0.6-  0.0     170106 926  0.5-  0.1+
170105 I52  0.1+  0.0     170105 C43  0.0   1.2+    170106 926  0.3-  0.4+
170105 I52  0.1-  0.1+    170105 C77  0.2+  0.4-    170106 587  0.3+  0.3+
170105 I52  0.3-  0.1-    170105 104  0.1-  0.0     170106 587  0.1+  0.2+
170105 I52  0.1-  0.1+    170105 204  0.4+  0.3-    170106 160  0.3+  0.8-
170105 I52  0.0   0.0     170105 104  0.1+  0.1-    170106 160  0.3-  0.2-
170105 595  0.7-  0.1-    170105 C77  0.1+  0.2-    170106 160  0.3-  0.2-
170105 595  0.1-  0.3-    170105 203  0.3+  0.7-

Ephemeris:
2017 AT4                 a,e,i = 1.38, 0.27, 3                   q = 1.0113
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2016 12 08    04 05 57.7 +00 37 25   0.07670 1.0547   154.4    23.8    22.4
...
2016 12 23    04 45 14.8 +05 14 30   0.04672 1.0256   153.4    25.4    21.3
...
2016 12 31    05 39 15.9 +12 22 36   0.03464 1.0163   161.8    17.6    20.4
...
2017 01 06    06 51 27.1 +20 28 12   0.02918 1.0124   175.7     4.2    19.4
2017 01 07    07 06 35.5 +21 52 03   0.02871 1.0120   178.6     1.4    19.2
2017 01 08    07 22 28.6 +23 12 45   0.02839 1.0117   178.3     1.6    19.2
...
2017 01 14    09 03 43.3 +28 49 47   0.02957 1.0114   160.2    19.2    20.1
...
2017 01 22    10 47 18.1 +29 22 57   0.03787 1.0153   144.6    34.2    21.0
...
2017 02 06    12 02 52.1 +25 54 47   0.06261 1.0351   140.4    37.4    22.3

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-A45




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