[Iaude] MPEC H09: 2017 GZ7 [a=3.15,e=0.53,i=38.0,H=21.7]

Tue Apr 18 15:27:47 EDT 2017

M.P.E.C. 2017-H09                                Issued 2017 Apr. 18, 19:24 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 GZ7
 
Observations:
     K17G07Z  C2017 04 03.46683 12 55 35.156-00 20 39.30         22.2 wLEH009F51
     K17G07Z  C2017 04 03.48070 12 55 32.418-00 21 19.43         21.7 wLEH009F51
     K17G07Z  C2017 04 03.49463 12 55 29.681-00 21 59.00         22.2 wLEH009F51
     K17G07Z  C2017 04 03.50858 12 55 26.913-00 22 39.53         22.2 wLEH009F51
     K17G07Z* C2017 04 03.51658 12 55 25.350-00 23 02.28         21.9 wLEH009F51
     K17G07Z  C2017 04 03.52800 12 55 23.112-00 23 35.56         21.7 wLEH009F51
     K17G07Z  C2017 04 03.53943 12 55 20.875-00 24 07.98         21.7 wLEH009F51
     K17G07Z _C2017 04 04.30429912 52 55.188-01 01 00.75         21.4 GUEH009568
     K17G07Z _C2017 04 04.30528412 52 54.993-01 01 03.74         21.3 GUEH009568
     K17G07Z _C2017 04 04.30626612 52 54.810-01 01 06.48         21.0 GUEH009568
     K17G07Z |C2017 04 05.22184 12 49 55.95 -01 45 36.1          21.6 VuEH009807
     K17G07Z |C2017 04 05.23112 12 49 54.11 -01 46 03.7          21.6 VuEH009807
     K17G07Z |C2017 04 05.24010 12 49 52.31 -01 46 30.4          21.5 VuEH009807
     K17G07Z KC2017 04 05.45594 12 49 09.59 -01 57 23.7                oEH009291
     K17G07Z KC2017 04 05.45818 12 49 09.13 -01 57 30.6                oEH009291
     K17G07Z KC2017 04 05.46044 12 49 08.70 -01 57 37.2          20.5 RoEH009291
     K17G07Z "C2017 04 18.29715212 06 09.65 -12 52 06.5          22.0 RtEH009705
     K17G07Z "C2017 04 18.29817012 06 09.44 -12 52 09.5          21.9 RtEH009705
     K17G07Z "C2017 04 18.29919312 06 09.24 -12 52 12.7          21.6 RtEH009705
     K17G07Z KC2017 04 18.34684 12 05 59.67 -12 54 35.8                oEH009291
     K17G07Z KC2017 04 18.35332 12 05 58.42 -12 54 54.4                oEH009291
     K17G07Z KC2017 04 18.35983 12 05 57.14 -12 55 13.9                oEH009291
 
Observer details:
291 LPL/Spacewatch II.  Observers R. S. McMillan, M. T. Read.  1.8-m f/2.7
    reflector + CCD.
568 Mauna Kea.  Observers R. J. Wainscoat, R. Weryk, D. Woodworth.  Measurers
    M. Micheli, R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
705 Apache Point.  Observers K. Nault, M. Hammergren, M. Brucker.  Measurer
    K. Nault.  3.5-m f/10 reflector + CCD.
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
    + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers B. Gibson, T. Goggia, S. Kahale,
    T. Lowe, A. Schultz, M. Willman.  Measurers K. Chambers, S. Chastel,
    L. Denneau, H. Flewelling, M. Huber, E. Lilly, E. Magnier, R. Wainscoat,
    C. Waters, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
 
Orbital elements:
2017 GZ7
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
M 343.47816              (2000.0)            P               Q
n   0.17604116     Peri.  208.31786     -0.74579957     +0.64489353
a   3.1530189      Node    15.74841     -0.43328343     -0.27914299
e   0.5334823      Incl.   37.97857     -0.50601232     -0.71147138
P   5.60           H   21.7           G   0.15           U   6
Residuals in seconds of arc
170403 F51  0.1+  0.2+    170404 568  0.1-  0.1-    170418 705  0.2+  0.0
170403 F51  0.0   0.1-    170404 568  0.1+  0.0     170418 705  0.1+  0.1+
170403 F51  0.1+  0.3+    170405 807  0.5-  0.0     170418 705  0.2+  0.1-
170403 F51  0.2-  0.1-    170405 807  0.0   0.3-    170418 291  0.7-  0.5-
170403 F51  0.1-  0.1+    170405 807  0.1+  0.5-    170418 291  0.1+  0.3+
170403 F51  0.0   0.4-    170405 291  0.1+  0.3+    170418 291  0.4+  0.2+
170403 F51  0.1+  0.1+    170405 291  0.1-  0.0
170404 568  0.1-  0.0     170405 291  0.2+  0.1+

Ephemeris:
2017 GZ7                 a,e,i = 3.15, 0.53, 38                  q = 1.4709
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 03 19    13 36 49.9 +09 57 48   0.6536  1.6048   152.8    16.5    22.7
...
2017 04 03    12 57 04.3 +00 01 44   0.5528  1.5509   174.3     3.6    21.7
...
2017 04 11    12 30 39.0 -06 38 07   0.5324  1.5271   168.2     7.7    21.8
...
2017 04 17    12 10 26.5 -11 46 31   0.5337  1.5118   158.0    14.4    22.0
2017 04 18    12 07 08.6 -12 36 59   0.5352  1.5095   156.3    15.5    22.1
2017 04 19    12 03 52.9 -13 26 57   0.5371  1.5072   154.6    16.6    22.1
...
2017 04 25    11 45 20.2 -18 12 45   0.5556  1.4950   144.9    22.8    22.4
...
2017 05 03    11 24 28.2 -23 46 03   0.5963  1.4825   133.4    29.6    22.7
...
2017 05 18    10 59 51.6 -31 46 21   0.7044  1.4713   116.9    37.8    23.3

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-H09