[Iaude] MPEC B153: 2019 BR4 [a=2.12,e=0.66,i=20.6,H=20.2,PHA]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Wed Jan 30 23:09:16 EST 2019


M.P.E.C. 2019-B153                               Issued 2019 Jan. 31, 04:06 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 https://www.minorplanetcenter.net/    ISSN 1523-6714


                                   2019 BR4
 
Observations:
     K19B04R* C2019 01 28.45902508 47 35.49 -25 00 39.5          17.33oVEB153T08
     K19B04R  C2019 01 28.46547108 47 35.31 -24 59 07.0          17.41oVEB153T08
     K19B04R  C2019 01 28.47883008 47 34.95 -24 55 55.5          17.26oVEB153T08
     K19B04R |C2019 01 29.07882 08 47 37.67 -22 34 02.8          17.6 VuEB153807
     K19B04R |C2019 01 29.08074 08 47 37.63 -22 33 36.2          17.7 VuEB153807
     K19B04R |C2019 01 29.08266 08 47 37.61 -22 33 09.7          17.5 VuEB153807
     K19B04R |C2019 01 29.08458 08 47 37.58 -22 32 43.2          17.6 VuEB153807
     K19B04R |C2019 01 29.08651 08 47 37.54 -22 32 16.6          17.8 VuEB153807
     K19B04R |C2019 01 29.08842 08 47 37.51 -22 31 50.2          17.6 VuEB153807
     K19B04R  C2019 01 29.34464308 47 34.03 -21 33 54.6          17.4 GVEB153H01
     K19B04R  C2019 01 29.35146908 47 33.89 -21 32 21.0          17.3 GVEB153H01
     K19B04R  C2019 01 29.35842008 47 33.74 -21 30 45.4          17.4 GVEB153H01
     K19B04R  C2019 01 29.36735708 47 33.56 -21 28 42.8          17.4 GVEB153H01
     K19B04R KC2019 01 29.56311 08 47 35.17 -20 43 21.1          18.1 GVEB153Q67
     K19B04R KC2019 01 29.56491 08 47 35.11 -20 42 56.7          17.4 GVEB153Q67
     K19B04R KC2019 01 29.56670 08 47 35.10 -20 42 32.5          16.9 GVEB153Q67
     K19B04R  C2019 01 29.66600 08 47 33.84 -20 21 10.0          18.1 RrEB153P93
     K19B04R  C2019 01 29.67045 08 47 33.76 -20 20 10.3          18.4 RrEB153P93
     K19B04R  C2019 01 29.67712 08 47 33.64 -20 18 39.8          18.4 RrEB153P93
     K19B04R  C2019 01 29.68379 08 47 33.49 -20 17 09.9          18.1 RrEB153P93
     K19B04R  C2019 01 29.68603 08 47 33.43 -20 16 39.8          18.2 RrEB153P93
     K19B04R  C2019 01 29.91899808 47 34.96 -19 24 52.0          17.5 GVEB153L01
     K19B04R  C2019 01 29.91919208 47 34.96 -19 24 49.3          17.6 GVEB153L01
     K19B04R  C2019 01 29.91977508 47 34.94 -19 24 41.9          17.4 GVEB153L01
     K19B04R  C2019 01 29.91997008 47 34.94 -19 24 39.3          17.5 GVEB153L01
     K19B04R  C2019 01 29.92176808 47 34.92 -19 24 15.5          17.4 GVEB153L01
     K19B04R  C2019 01 29.92196208 47 34.91 -19 24 12.8          17.8 GVEB153L01
     K19B04R KC2019 01 29.93625 08 47 34.56 -19 21 06.3          17.2 RqEB153K61
     K19B04R KC2019 01 29.93854 08 47 34.64 -19 20 34.9          17.3 RqEB153K61
     K19B04R KC2019 01 29.93932 08 47 34.59 -19 20 24.7          17.3 RqEB153K61
     K19B04R  C2019 01 30.51598 08 47 33.63 -17 13 54.5          17.7 GVEB153474
     K19B04R  C2019 01 30.51698 08 47 33.61 -17 13 41.6          17.5 GVEB153474
     K19B04R  C2019 01 30.51799 08 47 33.58 -17 13 28.5          17.9 GVEB153474
     K19B04R  C2019 01 30.52034 08 47 33.55 -17 12 58.7          17.5 GVEB153474
     K19B04R  C2019 01 30.52135 08 47 33.51 -17 12 46.1          17.9 GVEB153474
     K19B04R KC2019 01 30.98313 08 47 32.81 -15 36 47.3          16.7 VtEB153K33
     K19B04R KC2019 01 30.98863508 47 33.09 -15 35 42.0          17.5 GVEB153J95
     K19B04R KC2019 01 30.99138308 47 33.03 -15 35 08.0          17.5 GVEB153J95
     K19B04R KC2019 01 30.99419708 47 32.99 -15 34 33.0          17.5 GVEB153J95
     K19B04R KC2019 01 30.99481 08 47 32.54 -15 34 22.8          17.7 VtEB153K33
     K19B04R KC2019 01 30.99675508 47 32.97 -15 34 01.3          17.7 GVEB153J95
     K19B04R KC2019 01 31.00611 08 47 32.34 -15 32 00.7          17.9 VtEB153K33
     K19B04R KC2019 01 31.02039 08 47 32.20 -15 29 04.6          17.8 VtEB153K33
     K19B04R KC2019 01 31.03918 08 47 32.25 -15 25 15.1          17.8 GVEB153Z99
     K19B04R KC2019 01 31.04202 08 47 32.21 -15 24 39.8          17.6 GVEB153Z99
     K19B04R KC2019 01 31.04492 08 47 32.19 -15 24 03.7          17.8 GVEB153Z99
 
Observer details:
474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore,
    P. M. Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes.
    0.61-m f/6.5 astrograph + CCD.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 Ritchey-Chretien + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.41-m f/6.3
    Schmidt-Cassegrain + CCD.
K33 San Defendente.  Observer E. Viano.  0.28-m f/1122.0 Schmidt-Cassegrain +
    CCD + f/3.3 focal reducer.
K61 Rokycany Observatory.  Observer M. Adamovsky.  0.51-m f/6.8 reflector +
    CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.
P93 Space Tracking and Communications Center, JAXA.  Observers K. Nishiyama,
    T. Nimura.  1.0-m f/3.0 reflector + CCD.
Q67 JBL Observatory, Bathurst.  Observer M. Suzuki.  0.31-m f/9.0 reflector +
    CCD.
T08 ATLAS-MLO, Mauna Loa.  Observers L. Denneau, J. Tonry, A. Heinze,
    H. Weiland, H. Flewelling.  Measurers L. Denneau, J. Tonry, A. Heinze,
    H. Weiland, H. Flewelling, B. Stalder, A. Fitzsimmons, D. Young,
    N. Erasmus.  0.5-m reflector + CCD.
Z99 Clixby Observatory, Cleethorpes.  Observer A. Mickleburgh.  0.36-m f/8
    Schmidt-Cassegrain + CCD.
 
Orbital elements:
2019 BR4                                            PHA, Earth MOID = 0.0486 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  45.74289              (2000.0)            P               Q
n   0.32019018     Peri.  262.82191     +0.65136515     -0.72936884
a   2.1160733      Node   143.61441     +0.75690316     +0.64388982
e   0.6581877      Incl.   20.64476     -0.05311348     +0.23114279
P   3.08           H   20.2           G   0.15           U   7
Residuals in seconds of arc
190128 T08  0.2+  0.1-    190129 P93  0.0   0.1-    190130 474  0.3-  0.2+
190128 T08  0.0   0.0     190129 P93  0.2+  0.4-    190130 474  0.1-  0.1-
190128 T08  0.2-  0.0     190129 P93  0.5+  0.1+    190130 474  0.4-  0.4-
190129 807  0.1-  0.0     190129 P93  0.3+  0.1+    190130 K33  0.0   0.4+
190129 807  0.2-  0.1+    190129 P93  0.1+  0.0     190130 J95  0.2+  0.1+
190129 807  0.0   0.1+    190129 L01  0.0   0.2+    190130 J95  0.1-  0.1-
190129 807  0.0   0.0     190129 L01  0.0   0.3+    190130 J95  0.0   0.1-
190129 807  0.1-  0.0     190129 L01  0.1-  0.0     190130 K33  0.9-  0.4-
190129 807  0.0   0.0     190129 L01  0.0   0.0     190130 J95  0.2+  0.1-
190129 H01  0.1-  0.0     190129 L01  0.1+  0.0     190131 K33  0.9-  1.2+
190129 H01  0.0   0.1-    190129 L01  0.0   0.1+    190131 K33  0.7+  0.1-
190129 H01  0.1-  0.1+    190129 K61  0.7-  0.9-    190131 Z99  0.1-  0.0
190129 H01  0.0   0.1+    190129 K61  1.0+  0.1+    190131 Z99  0.1-  0.1+
190129 Q67  0.1-  0.2+    190129 K61  0.5+  0.0     190131 Z99  0.2+  0.2+
190129 Q67  0.4-  0.2+    190130 474  0.1-  0.1-
190129 Q67  0.0   0.2+    190130 474  0.1-  0.0

Ephemeris:
2019 BR4                 a,e,i = 2.12, 0.66, 21                  q = 0.7233
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2019 01 01    20 43 21.3 -72 32 50   0.2779  0.8422    52.2   112.7    21.4
...
2019 01 16    08 45 55.8 -75 55 35   0.1651  0.9762    82.6    87.8    19.3
...
2019 01 24    08 47 35.0 -44 02 51   0.1432  1.0556   116.3    56.7    18.1
...
2019 01 30    08 47 34.0 -19 06 21   0.1598  1.1168   143.0    32.0    17.8
2019 01 31    08 47 32.8 -15 32 42   0.1653  1.1271   146.8    28.6    17.8
2019 02 01    08 47 31.7 -12 12 17   0.1713  1.1374   150.4    25.3    17.8
...
2019 02 07    08 47 36.4 +03 23 52   0.2190  1.1994   165.4    11.9    18.0
...
2019 02 15    08 48 37.1 +15 24 12   0.3029  1.2819   164.4    11.9    18.9
...
2019 03 02    08 54 11.1 +25 06 48   0.4966  1.4344   147.4    21.9    20.5

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-B153



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