[Iaude] MPEC F145: 2007 DB61 [a=0.81,e=0.36,i=5.4,H=23.6]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Thu Mar 29 06:29:17 EDT 2018


M.P.E.C. 2018-F145                               Issued 2018 Mar. 29, 10:26 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


                                   2007 DB61
 
                           Revision to MPEC 2007-D74
 
Additional Observations:
     K07D61B  C2018 03 28.24404 13 44 38.30 +15 50 58.1          20.4 GUEF145G96
     K07D61B  C2018 03 28.24929 13 44 36.27 +15 51 25.6          20.6 GUEF145G96
     K07D61B  C2018 03 28.25454 13 44 34.21 +15 51 52.8          19.9 GUEF145G96
     K07D61B  C2018 03 28.25978 13 44 32.16 +15 52 20.4          20.6 GUEF145G96
     K07D61B  C2018 03 28.38022 13 43 44.29 +16 02 43.0          19.8 GUEF145I52
     K07D61B  C2018 03 28.38098 13 43 44.04 +16 02 46.5          20.0 GUEF145I52
     K07D61B  C2018 03 28.38174 13 43 43.65 +16 02 50.9          19.7 GUEF145I52
     K07D61B  C2018 03 28.38250 13 43 43.37 +16 02 54.5          19.8 GUEF145I52
     K07D61B  C2018 03 28.49907 13 42 57.16 +16 12 47.3          20.4 GUEF145I52
     K07D61B  C2018 03 28.49948 13 42 56.94 +16 12 49.3          19.9 GUEF145I52
     K07D61B  C2018 03 28.49990 13 42 56.78 +16 12 51.9          19.8 GUEF145I52
     K07D61B  C2018 03 28.50031 13 42 56.61 +16 12 53.2                UEF145I52
     K07D61B  C2018 03 29.29735 13 37 59.18 +17 20 59.7                UEF145G96
     K07D61B  C2018 03 29.29912 13 37 58.43 +17 21 09.6          20.4 GUEF145G96
     K07D61B  C2018 03 29.30089 13 37 57.76 +17 21 18.6          20.6 GUEF145G96
     K07D61B  C2018 03 29.30124 13 37 57.58 +17 21 20.9          20.1 GUEF145G96
 
Observer details:
G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  Measurers B. M. Africano,
    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. L. Seaman, F. C. Shelly.
    1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer B. M. Africano.
    Measurers B. M. Africano, 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. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
180328 G96 4.64+ 1.89-    180329 G96 4.72+ 1.84-    MPO122878   -0.79 day
 
Orbital elements:
2007 DB61                                                Earth MOID = 0.0130 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 172.88997              (2000.0)            P               Q
n   1.34895265     Peri.  209.23035     +0.98840887     -0.14812399
a   0.8112192      Node   159.20886     +0.15101386     +0.93679160
e   0.3647674      Incl.    5.37886     +0.01557966     +0.31698703
P   0.73           H   23.6           G   0.15           U   4
Residuals in seconds of arc
070225 704  0.6-  0.1-    070227 H45  0.3+  0.7-    180328 G96  0.2-  0.5-
070225 704  0.2-  0.1-    070227 H45  0.3-  0.0     180328 G96  0.1+  0.3-
070225 704  0.4-  0.2+    070227 H45  0.2+  0.2-    180328 G96  0.1+  0.4-
070225 704  0.3-  0.2-    070227 A81  0.0   0.2-    180328 G96  0.1+  0.1-
070225 704  0.6-  0.5+    070227 A81  0.1+  0.2-    180328 I52  0.2-  0.3+
070226 704  0.6+  0.3+    070227 A81  0.2+  0.1-    180328 I52  0.6+  0.1-
070226 704  0.3-  0.4+    070228 204  0.4-  0.5+    180328 I52  0.7-  0.4+
070226 704  0.5+  0.3+    070228 204  0.1-  0.6+    180328 I52  0.3-  0.1+
070226 704  0.5+  0.2+    070228 204  0.2-  0.3+    180328 I52  0.6+  0.0
070226 473  0.0   0.0     070304 461  0.1+  0.5+    180328 I52  0.3-  0.0
070226 473  0.0   0.3+    070304 461  0.1+  0.8+    180328 I52  0.2-  0.4+
070226 473  0.1-  0.2+    070304 461  0.2+  0.4+    180328 I52  0.3-  0.3-
070227 H45  0.2+  0.7-    070312 246  0.7+  0.3-    180329 G96  0.1+  0.7-
070227 H45  0.2+  0.5-    070312 246 (0.5+  2.2+)   180329 G96  0.3-  0.1+
070227 H45  0.1+  0.6-    070312 246  0.4+  0.2+    180329 G96  0.5+  0.1-
070227 H45  0.0   0.3-    070312 246  0.7+  0.9+    180329 G96  0.0   0.4+
070227 H45  0.1+  1.1-    070312 246  0.0   0.1+

Ephemeris:
2007 DB61                a,e,i = 0.81, 0.36, 5                   q = 0.5153
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 02 27    15 14 03.8 -13 16 32   0.1984  1.0693   108.3    61.5    22.4
...
2018 03 14    14 48 45.3 -02 14 23   0.1491  1.0982   131.2    42.9    21.3
...
2018 03 22    14 18 39.9 +07 08 20   0.1293  1.1054   145.6    30.6    20.7
...
2018 03 28    13 46 05.8 +15 30 26   0.1210  1.1071   153.0    24.2    20.4
2018 03 29    13 39 51.6 +16 55 57   0.1202  1.1071   153.4    23.8    20.3
2018 03 30    13 33 24.9 +18 20 52   0.1197  1.1070   153.5    23.7    20.3
...
2018 04 05    12 51 24.5 +26 12 49   0.1208  1.1045   147.9    28.8    20.5
...
2018 04 13    11 53 32.5 +33 34 12   0.1323  1.0962   132.4    42.5    21.1
...
2018 04 28    10 33 38.9 +38 08 37   0.1705  1.0655   105.7    65.5    22.2

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-F145



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