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  • MPEC 2022-C49 : 2017 DY108

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    M.P.E.C. 2022-C49                              Issued 2022 February 3, 10:15 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
    
                                   2017 DY108                                
    
    
                               Revision to MPEC 2017-E10                            
    
    Additional Observations:
         K17DA8Y  C2022 01 31.35050309 56 51.19 +34 04 33.0          21.08GVEC049G96
         K17DA8Y  C2022 01 31.35615009 56 49.98 +34 04 22.5          21.73GVEC049G96
         K17DA8Y  C2022 01 31.36186509 56 48.76 +34 04 11.6          21.34GVEC049G96
         K17DA8Y  C2022 01 31.36751809 56 47.56 +34 04 00.8          21.72GVEC049G96
         K17DA8Y KC2022 01 31.39783809 56 41.07 +34 03 02.4          21.51GVEC049I52
         K17DA8Y KC2022 01 31.40090809 56 40.65 +34 02 58.4                VEC049I52
         K17DA8Y KC2022 01 31.40397709 56 39.71 +34 02 50.3          21.73GVEC049I52
         K17DA8Y KC2022 01 31.40704709 56 39.08 +34 02 44.7          22.06GVEC049I52
         K17DA8Y KC2022 02 01.30805209 53 35.42 +33 33 22.9          21.57GVEC049V06
         K17DA8Y KC2022 02 01.31029009 53 34.94 +33 33 18.5          21.18GVEC049V06
         K17DA8Y KC2022 02 01.31252609 53 34.44 +33 33 14.1          21.35GVEC049V06
         K17DA8Y KC2022 02 01.31476309 53 33.96 +33 33 09.7          21.45GVEC049V06
         K17DA8Y 1C2022 02 02.97652 09 47 45.69 +32 35 35.0          21.2 VVEC049033
         K17DA8Y 1C2022 02 02.97981 09 47 44.96 +32 35 28.2          21.3 VVEC049033
         K17DA8Y 1C2022 02 02.98310 09 47 44.22 +32 35 21.2          21.3 VVEC049033
         K17DA8Y KC2022 02 03.21022109 46 57.09 +32 27 14.1                VEC049I52
         K17DA8Y KC2022 02 03.21328809 46 56.44 +32 27 08.1          21.74GVEC049I52
         K17DA8Y KC2022 02 03.21635509 46 55.69 +32 27 00.7                VEC049I52
    
    Observer details:
    033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, C.
        Hoegner, U. Laux, F. Ludwig, B. Stecklum.  Measurer B. Stecklum.  1.34-m
        f/3 Schmidt + CCD.
    G96 Mt. Lemmon Survey.  Observer R. A. Kowalski.  Measurers E. J. Christensen,
        G. A. Farneth, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H.
        Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L.
        Seaman, A. Serrano, F. C. Shelly, K. W. Wierzchos.  1.5-m reflector + 10K
        CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers D. C. Fuls, J. B.
        Fazekas, K. W. Wierzchos.  Measurers E. J. Christensen, G. A. Farneth, J.
        B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A.
        Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L. Seaman, A.
        Serrano, F. C. Shelly, K. W. Wierzchos.
    V06 Catalina Sky Survey-Kuiper.  Observer D. C. Fuls.  Measurers E. J.
        Christensen, G. A. Farneth, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D.
        Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, D.
        Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W. Wierzchos.  1.55-m
        reflector + 1K CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    220131 G96 1.78+ 1.57+    220203 I52 1.87+ 1.56+    MPO409592   +0.87 days
    
    Orbital elements:
    2017 DY108                                               Earth MOID = 0.2887 AU
    Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Bell                    
    M 306.56873              (2000.0)            P               Q                  
    n   0.58765154     Peri.  223.56091     -0.95826168     +0.20607510             
    a   1.4116362      Node   326.76278     -0.02954628     -0.76080294             
    e   0.1159779      Incl.   21.19458     -0.28436168     -0.61539576             
    P   1.68           H   22.34          G   0.15           U   1                  
    Residuals in seconds of arc
    170224 G96  0.8+  0.8+    170227 I52  0.4+  0.0     170328 807  0.2-  0.0
    170224 G96  0.1-  0.3+    170227 I52  0.4-  0.7+    170328 807  0.1+  0.0
    170224 G96  0.3+  0.9+    170301 474  0.0   0.2-    220131 G96  0.2+  0.3-
    170224 G96  1.5+  0.0     170301 474  0.5+  0.5-    220131 G96  0.1+  0.0
    170224 G96  0.1-  0.1-    170301 474  0.8-  0.2-    220131 G96  0.1+  0.1+
    170224 G96  0.0   0.3-    170301 474  0.1+  0.2+    220131 G96  0.3+  0.0
    170224 G96  0.4-  0.2-    170301 474  0.3-  0.2+    220131 I52  0.2+  0.1-
    170224 G96  0.4+  0.3-    170304 807  0.1+  0.0     220131 I52 (3.2+  1.9+)
    170224 G96  1.7+  0.1+    170304 807  0.2-  0.1+    220131 I52  0.3-  0.3-
    170224 G96  0.2+  0.1+    170304 807  0.2-  0.2+    220131 I52  0.0   0.1+
    170224 G96  0.4+  0.2+    170307 807  0.1-  0.0     220201 V06  0.1-  0.1+
    170224 G96  0.7-  0.3+    170307 807  0.2-  0.0     220201 V06  0.0   0.0
    170226 807  0.3-  0.3+    170307 807  0.1-  0.0     220201 V06  0.2-  0.1+
    170226 807  0.1-  0.1-    170309 807  0.2+  0.1-    220201 V06  0.1-  0.1+
    170226 807  0.2+  0.0     170309 807  0.3-  0.3-    220202 033  0.2+  0.1-
    170227 807  0.1-  0.1-    170309 807  0.2-  0.4-    220202 033  0.1+  0.1+
    170227 807  0.1-  0.2-    170317 807  0.3+  0.4+    220202 033  0.1-  0.1+
    170227 807  0.1+  0.1-    170317 807  0.5+  0.2+    220203 I52  0.4-  0.3-
    170227 I52 (1.2+  0.4-)   170317 807  0.7+  0.1-    220203 I52  0.1-  0.1+
    170227 I52  0.4+  0.4-    170328 807  0.6-  0.2-    220203 I52 (1.1-  0.8-)
    
    Ephemeris:
    2017 DY108               a,e,i = 1.41, 0.12, 21                  q = 1.2479
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2022 01 04    10 50 18.2 +41 45 52   0.5035  1.3547   128.4    34.7    22.9
    ...
    2022 01 19    10 31 29.6 +38 54 34   0.4054  1.3307   143.2    26.3    22.2
    ...
    2022 01 27    10 10 49.0 +36 09 04   0.3637  1.3186   152.8    20.0    21.7
    ...
    2022 02 02    09 51 11.2 +33 10 01   0.3394  1.3099   160.3    14.7    21.4
    2022 02 03    09 47 40.6 +32 34 55   0.3360  1.3085   161.4    13.9    21.4
    2022 02 04    09 44 07.3 +31 58 16   0.3329  1.3071   162.5    13.1    21.3
    ...
    2022 02 10    09 22 21.9 +27 47 19   0.3189  1.2989   166.5    10.2    21.1
    ...
    2022 02 18    08 54 50.0 +21 08 09   0.3138  1.2888   160.9    14.5    21.2
    ...
    2022 03 05    08 18 14.4 +08 17 08   0.3430  1.2723   139.5    30.4    21.9
    
    M. P. C. Staff               (C) Copyright 2022 MPC           M.P.E.C. 2022-C49
    


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