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  • MPEC 2019-U124 : 2009 HM82

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    M.P.E.C. 2019-U124                             Issued 2019 October 24, 02:52 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@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                    2009 HM82                                
    
    
                                Revision to MPEC 2009-J8                            
    
    Additional Observations:
         K09H82M  C2019 04 09.24463710 11 06.425-27 02 07.54         21.6 GVEU124F51
         K09H82M  C2019 04 09.25495610 11 05.623-27 01 36.93         22.2 GVEU124F51
         K09H82M  C2019 04 09.26529310 11 04.790-27 01 04.90         22.5 GVEU124F51
         K09H82M  C2019 04 09.27564710 11 03.887-27 00 34.06         22.5 GVEU124F51
         K09H82M  C2019 05 01.26451910 03 11.237-04 58 00.44         22.5 GVEU124F51
         K09H82M  C2019 05 01.29040310 03 11.678-04 56 20.41         21.6 GVEU124F51
         K09H82M  C2019 10 23.41935 03 53 05.01 +25 19 04.7          20.3 GVEU124G96
         K09H82M  C2019 10 23.42599 03 53 03.75 +25 18 28.9          21.8 GVEU124G96
         K09H82M  C2019 10 23.43112 03 53 02.79 +25 18 01.3                VEU124G96
         K09H82M  C2019 10 23.43624 03 53 01.81 +25 17 33.9          21.1 GVEU124G96
         K09H82M  C2019 10 23.49432 03 52 50.80 +25 12 21.1          20.8 GVEU124I52
         K09H82M  C2019 10 23.49683 03 52 50.26 +25 12 07.3          20.5 GVEU124I52
         K09H82M  C2019 10 23.49933 03 52 49.89 +25 11 54.9          20.4 GVEU124I52
         K09H82M  C2019 10 23.50183 03 52 49.40 +25 11 40.8          21.0 GVEU124I52
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, E. 
       Magnier, A. Schultz, M. Willman.  Measurers S. Chastel, M. Huber, Y. 
       Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  Measurers E. J. Christensen, 
       G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A. 
       Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L. Seaman,
        F. C. Shelly, K. W. Wierzchos.  1.5-m reflector + 10K CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers R. A. Kowalski, K. W. 
       Wierzchos.  Measurers E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. 
       Gibbs, A. D. Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. 
       Leonard, T. A. Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. 
       Wierzchos.  1.0-m reflector + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
    190409 F51  131-   14-    191023 I52   46-   18-    MPO158648   -49.0 days
    
    Orbital elements:
    2009 HM82                                                Earth MOID = 0.0697 AU
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 Veres
    M 299.15030              (2000.0)            P               Q
    n   0.68632879     Peri.   80.06237     +0.43307134     +0.87538859
    a   1.2728618      Node   218.04596     -0.90120827     +0.41615500
    e   0.3025710      Incl.   20.39891     -0.01651865     +0.24598745
    P   1.44           H   22.6           G   0.15           U   2
    Residuals in seconds of arc
    090430 704  2.1+  0.2-    090503 474  0.2-  0.1-    090507 198  0.0   0.4+
    090430 704  0.4+  0.1-    090503 474  0.1-  0.2-    090510 H55  0.6-  0.9+
    090430 704  0.6+  0.1+    090503 474  0.1-  0.2+    090510 H55  0.2-  0.4+
    090430 704  0.9+  0.0     090503 474  0.0   0.2-    090510 H55  0.1-  0.2+
    090430 704  0.4+  0.3+    090503 474  0.2-  0.6-    090510 H55  0.2-  0.0
    090501 704  0.5+  0.9+    090503 474  0.1+  0.4+    090512 H55  0.1+  0.7+
    090501 704  1.0+  0.0     090503 160  0.1-  0.1-    090512 H55  0.2-  0.4+
    090501 704  0.7+  0.9-    090503 160  0.4-  0.9-    090512 H55  0.1-  0.1+
    090501 704  0.3+  1.0+    090503 J95  0.1-  0.1-    090512 H55  0.2+  0.6+
    090501 704  0.3+  0.7-    090503 J95  0.2-  0.1-    090519 H55  1.1+  1.6-
    090501 704  1.0+  1.5+    090503 J95  0.4-  0.3-    090519 H55  0.1+  0.3+
    090501 704  0.4+  0.5-    090504 J95  0.2-  0.1+    090519 H55  0.3-  0.4+
    090501 704  1.5+  0.1-    090504 J95  0.2-  0.2-    190409 F51  0.2-  0.3+
    090501 204  0.4-  0.3+    090504 H26  1.4-  2.8-    190409 F51  0.3+  0.3-
    090501 204  0.5-  0.2-    090504 H26  0.3+  1.0+    190409 F51  0.5+  0.4+
    090502 J95  0.2+  0.2-    090504 H26  0.4-  0.7+    190409 F51  0.2-  0.2-
    090502 J95  0.1+  0.1-    090504 H26  0.2+  1.5+    190501 F51  0.0   0.2+
    090502 J95  0.0   0.0     090504 703  0.7-  0.3-    190501 F51  0.2+  0.1-
    090502 B03  0.1+  0.6+    090504 703  0.4+  0.7-    191023 G96  0.5-  0.4+
    090502 B03  1.0-  0.2+    090504 703  0.5+  0.9+    191023 G96  0.3-  0.2+
    090502 B03  0.0   0.4-    090504 703  0.4+  0.3+    191023 G96  0.0   0.1+
    090502 B03  0.4+  0.2-    090505 160  0.1+  0.2-    191023 G96  0.0   0.2+
    090503 474  0.0   0.0     090505 160  0.3+  0.5-    191023 I52  0.2+  0.1-
    090503 474  0.2+  0.3+    090505 160  0.2-  0.0     191023 I52  0.7-  0.4-
    090503 474  0.1+  0.6+    090507 198  0.8-  0.9+    191023 I52  0.6+  0.7+
    090503 474  0.1-  0.2+    090507 198  0.5-  0.6+    191023 I52  0.4+  0.1+
    090503 474  0.1+  0.4+    090507 198  0.4-  0.6+
    
    Ephemeris:
    2009 HM82                a,e,i = 1.27, 0.30, 20                  q = 0.8877
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2019 09 24    05 25 08.1 +61 23 41   0.2746  1.0607    94.5    70.6    22.4
    ...
    2019 10 09    04 37 46.0 +45 44 41   0.2409  1.1320   117.9    51.3    21.7
    ...
    2019 10 17    04 12 37.7 +34 49 15   0.2333  1.1706   133.9    37.9    21.3
    ...
    2019 10 23    03 54 20.3 +25 56 34   0.2362  1.1996   146.7    27.1    21.1
    2019 10 24    03 51 23.1 +24 27 38   0.2375  1.2044   148.8    25.3    21.0
    2019 10 25    03 48 28.1 +22 59 15   0.2392  1.2092   150.9    23.6    21.0
    ...
    2019 10 31    03 31 54.9 +14 33 17   0.2544  1.2377   162.2    14.2    20.9
    ...
    2019 11 08    03 13 11.1 +05 11 06   0.2895  1.2751   167.5     9.7    21.1
    ...
    2019 11 23    02 50 14.1 -05 23 53   0.3917  1.3420   150.3    21.4    22.2
    2009 HM82                a,e,i = 1.27, 0.30, 20                  q = 0.8877
    
    A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-U124
    


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