[Iaude] MPEC H83: 2017 HW4 [a=0.98,e=0.36,i=18.6,H=22.1]

mpec at si.edu mpec at si.edu
Sat Apr 29 22:17:28 EDT 2017


M.P.E.C. 2017-H83                                Issued 2017 Apr. 30, 02:13 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 HW4
 
Observations:
     K17H04W  C2017 04 25.25173 10 22 11.500-17 56 54.03         19.7 wLEH083F51
     K17H04W  C2017 04 25.26269 10 22 05.991-17 54 44.20         19.5 wLEH083F51
     K17H04W  C2017 04 25.28464 10 21 54.989-17 50 24.33         19.6 wLEH083F51
     K17H04W* C2017 04 26.17193 10 14 57.34 -14 49 33.1          18.6 VqEH083703
     K17H04W  C2017 04 26.17685 10 14 54.85 -14 48 31.2          18.6 VqEH083703
     K17H04W  C2017 04 26.19125 10 14 47.59 -14 45 29.6          18.7 VqEH083703
     K17H04W  C2017 04 26.24197 10 14 22.24 -14 34 48.3          18.9 VqEH083I52
     K17H04W  C2017 04 26.24227 10 14 22.00 -14 34 43.8          18.8 VqEH083I52
     K17H04W  C2017 04 26.24286 10 14 21.75 -14 34 36.0          19.8 VqEH083I52
     K17H04W KC2017 04 26.42845 10 12 56.61 -13 53 51.8          18.6 VqEH083E23
     K17H04W KC2017 04 26.44095 10 12 50.31 -13 51 11.8          19.2 VqEH083E23
     K17H04W KC2017 04 26.45345 10 12 44.05 -13 48 31.8          18.8 VqEH083E23
     K17H04W KC2017 04 26.90264 10 09 10.57 -12 13 37.6          18.6 VqEH083I93
     K17H04W KC2017 04 26.90844 10 09 07.67 -12 12 21.6          19.2 VqEH083I93
     K17H04W KC2017 04 26.91550 10 09 04.17 -12 10 47.9          19.2 VqEH083I93
     K17H04W  C2017 04 27.13264 10 07 23.33 -11 23 06.6          20.0 VqEH083G96
     K17H04W  C2017 04 27.13304 10 07 23.15 -11 23 01.1          19.8 VqEH083G96
     K17H04W  C2017 04 27.13344 10 07 22.93 -11 22 55.7          20.2 VqEH083G96
     K17H04W  C2017 04 27.13385 10 07 22.72 -11 22 50.7          20.1 VqEH083G96
     K17H04W |C2017 04 27.99735 10 00 31.66 -08 07 36.2          19.6 VuEH083807
     K17H04W |C2017 04 28.00031 10 00 30.14 -08 06 55.5          19.5 VuEH083807
     K17H04W |C2017 04 28.00327 10 00 28.62 -08 06 14.8          19.3 VuEH083807
     K17H04W KC2017 04 28.07808 09 59 51.66 -07 50 51.4          18.6 VqEH083W25
     K17H04W KC2017 04 28.08542 09 59 47.95 -07 49 10.9          18.7 VqEH083W25
     K17H04W  C2017 04 28.18591 09 58 58.90 -07 25 59.7          18.8 VqEH083I52
     K17H04W  C2017 04 28.18633 09 58 58.69 -07 25 54.0          18.8 VqEH083I52
     K17H04W  C2017 04 28.18674 09 58 58.49 -07 25 48.4          18.8 VqEH083I52
     K17H04W  C2017 04 28.18715 09 58 58.27 -07 25 42.6          18.8 VqEH083I52
     K17H04W KC2017 04 28.38339 09 57 26.75 -06 38 48.5          19.3 VqEH083E23
     K17H04W KC2017 04 28.39589 09 57 20.28 -06 35 54.9          19.2 VqEH083E23
     K17H04W KC2017 04 28.40839 09 57 13.90 -06 33 01.4          18.8 VqEH083E23
     K17H04W KC2017 04 28.82090 09 53 55.36 -04 58 52.5                tEH083104
     K17H04W KC2017 04 28.82521 09 53 53.15 -04 57 51.7          18.7 RtEH083104
     K17H04W KC2017 04 28.83145 09 53 49.98 -04 56 24.1          19.0 RtEH083104
     K17H04W KC2017 04 28.85246 09 53 40.18 -04 51 28.9          19.3 VUEH083958
     K17H04W KC2017 04 28.86126 09 53 35.71 -04 49 24.3          20.0 VUEH083958
     K17H04W KC2017 04 28.92570 09 53 02.75 -04 34 17.9                UEH083204
     K17H04W KC2017 04 28.93178 09 52 59.70 -04 32 51.6          18.7 GUEH083204
     K17H04W KC2017 04 28.93794 09 52 56.64 -04 31 25.6                UEH083204
     K17H04W  C2017 04 29.16553 09 51 09.14 -03 37 33.9          18.8 VqEH083I52
     K17H04W  C2017 04 29.16594 09 51 08.95 -03 37 28.3          18.9 VqEH083I52
     K17H04W  C2017 04 29.16636 09 51 08.74 -03 37 22.2          18.5 VqEH083I52
     K17H04W  C2017 04 29.16677 09 51 08.50 -03 37 16.4          18.9 VqEH083I52
     K17H04W KC2017 04 29.85328 09 45 37.35 -00 54 17.1                UEH083204
     K17H04W KC2017 04 29.85843 09 45 34.76 -00 53 02.2          19.6 GUEH083204
     K17H04W KC2017 04 29.86358 09 45 32.16 -00 51 48.5                UEH083204
 
Observer details:
104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
    P. Bacci, L. Tesi, G. Fagioli.  0.60-m f/4 reflector + CCD.
204 Schiaparelli Observatory.  Observers L. Buzzi, G. Galli.  0.60-m f/4.64
    reflector + CCD.
703 Catalina Sky Survey.  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.
    0.68-m Schmidt + 10K CCD.
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
    + CCD.
958 Observatoire de Dax.  Observers P. Dupouy, J. B. de Vanssay.  Measurer
    P. Dupouy.  0.43-m f/2.7 reflector + CCD.
E23 Arcadia.  Observer A. Hidas.  0.35-m f/1.9 reflector + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, B. Gibson, T. Goggia,
    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.
G96 Mt. Lemmon Survey.  Observer A. R. Gibbs.  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.  Observers J. A. Johnson,
    R. G. Matheny.  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.
W25 RMS Observatory, Cincinnati.  Observer B. Rowe.  0.35-m Schmidt-Cassegrain
    + CCD.
 
Orbital elements:
2017 HW4                                                 Earth MOID = 0.0051 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
M 205.89201              (2000.0)            P               Q
n   1.01930209     Peri.  116.76334     +0.87823197     +0.43547260
a   0.9778392      Node   218.34442     -0.46585750     +0.87243293
e   0.3621750      Incl.   18.57941     +0.10809903     +0.22186575
P   0.97           H   22.1           G   0.15           U   8
Residuals in seconds of arc
170425 F51  0.5-  0.6+    170427 G96  0.3+  0.1-    170428 104  0.1+  0.3+
170425 F51  0.3-  0.3+    170427 G96  0.0   0.0     170428 104  0.1+  0.1+
170425 F51  0.6+  1.0-    170427 G96  0.0   0.4-    170428 958  0.3-  0.4-
170426 703  0.2+  0.0     170427 807  0.2-  0.3-    170428 958  0.2-  0.3+
170426 703  0.1+  0.1-    170428 807  0.2-  0.1-    170428 204  0.3+  0.1+
170426 703  0.1-  0.0     170428 807  0.3-  0.0     170428 204  0.1-  0.5+
170426 I52  0.8+  0.5-    170428 W25  0.4-  0.1+    170428 204  0.1-  0.5-
170426 I52  0.5-  0.2+    170428 W25  0.0   0.3-    170429 I52  0.2-  0.0
170426 I52  0.1+  0.5+    170428 I52  0.1+  0.0     170429 I52  0.1+  0.2-
170426 E23  0.2-  0.1+    170428 I52  0.1+  0.1-    170429 I52  0.2+  0.0
170426 E23  0.0   0.4+    170428 I52  0.3+  0.2-    170429 I52  0.3-  0.1-
170426 E23  0.6+  0.6+    170428 I52  0.1+  0.1-    170429 204  0.3-  0.7-
170426 I93  0.1+  0.0     170428 E23  0.6+  0.2+    170429 204  0.1+  0.3+
170426 I93  0.0   0.0     170428 E23  0.4-  0.3+    170429 204  0.2+  0.1+
170426 I93  0.3+  1.1+    170428 E23  0.0   0.2+
170427 G96  0.1-  0.4-    170428 104  0.4+  0.1+

Ephemeris:
2017 HW4                 a,e,i = 0.98, 0.36, 19                  q = 0.6237
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 03 31    12 48 57.4 -49 31 58   0.2535  1.1904   134.5    36.8    21.0
...
2017 04 15    11 35 53.0 -40 36 43   0.1498  1.1216   139.7    35.3    19.7
...
2017 04 23    10 39 31.4 -24 48 20   0.1090  1.0797   130.7    44.9    19.2
...
2017 04 29    09 52 30.8 -04 15 51   0.09330 1.0459   112.2    63.0    19.3
2017 04 30    09 44 28.9 -00 18 12   0.09243 1.0401   108.4    66.8    19.4
2017 05 01    09 36 25.1 +03 42 17   0.09211 1.0342   104.4    70.7    19.5
...
2017 05 07    08 47 32.7 +26 04 48   0.1010  0.9981    80.9    93.3    20.4
...
2017 05 15    07 41 44.8 +45 14 18   0.1339  0.9475    58.4   114.7    22.1
...
2017 05 30    05 47 55.5 +56 36 54   0.2250  0.8476    37.9   132.7    24.5

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-H83




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