[Iaude] MPEC K49: 2021 KB1 [a=1.06,e=0.11,i=3.6,H=26.4]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Thu May 20 03:05:25 EDT 2021


M.P.E.C. 2021-K49                                  Issued 2021 May 20, 07:04 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

                                    2021 KB1                                    


Observations:
     K21K01B  C2021 05 18.45875914 53 26.670+17 05 12.34         21.61GVEK049F51
     K21K01B  C2021 05 18.47124114 53 25.384+17 03 19.90         21.17GVEK049F51
     K21K01B* C2021 05 19.28914214 53 09.43 +15 04 11.8          20.70GVEK049G96
     K21K01B  C2021 05 19.29427314 53 08.91 +15 03 27.7          20.53GVEK049G96
     K21K01B  C2021 05 19.29939914 53 08.40 +15 02 43.4                VEK049G96
     K21K01B  C2021 05 19.30452014 53 07.95 +15 01 59.6          21.31GVEK049G96
     K21K01B KC2021 05 19.38334814 53 01.06 +14 50 38.0          21.01GVEK049I52
     K21K01B KC2021 05 19.38503514 53 00.94 +14 50 23.5          21.57GVEK049I52
     K21K01B KC2021 05 19.38671614 53 00.80 +14 50 08.6          21.17GVEK049I52
     K21K01B  C2021 05 20.22672314 52 53.60 +12 53 08.7          20.35GVEK049G96
     K21K01B  C2021 05 20.23184914 52 53.12 +12 52 26.5          20.86GVEK049G96
     K21K01B  C2021 05 20.23697414 52 52.66 +12 51 44.9          20.73GVEK049G96
     K21K01B  C2021 05 20.24209214 52 52.23 +12 51 02.8          20.72GVEK049G96

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
    Schultz, I. Smith.  Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
    Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  Observer D. Rankin.  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.  Observer E. J. Christensen.
    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.

Orbital elements:
2021 KB1                                                 Earth MOID = 0.0181 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
M 297.44939              (2000.0)            P               Q                  
n   0.89712334     Peri.   72.02609     -0.86353480     -0.50062185             
a   1.0647180      Node    77.89422     +0.43600052     -0.80165974             
e   0.1101002      Incl.    3.55969     +0.25339930     -0.32667938             
P   1.10           H   26.46          G   0.15           U   7                  
Residuals in seconds of arc
210518 F51  0.1+  0.2+    210519 G96  0.1+  0.1-    210520 G96  0.1-  0.1-
210518 F51  0.0   0.2-    210519 I52  0.0   0.3+    210520 G96  0.2-  0.1+
210519 G96  0.3+  0.1-    210519 I52  0.1+  0.5+    210520 G96  0.1+  0.2-
210519 G96  0.1-  0.1-    210519 I52  0.0   0.2+
210519 G96  0.4-  0.3-    210520 G96  0.3+  0.2+

Ephemeris:
2021 KB1                 a,e,i = 1.06, 0.11, 4                   q = 0.9475
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 20    20 02 39.8 +86 40 57   0.04964 0.9958    78.4    98.8    23.5
...
2021 05 05    15 08 06.6 +55 09 45   0.03825 1.0213   108.5    69.4    21.9
...
2021 05 13    14 57 06.5 +31 45 11   0.03913 1.0358   129.7    48.7    21.3
...
2021 05 19    14 53 17.8 +15 46 44   0.04399 1.0469   142.5    36.0    21.2
2021 05 20    14 52 55.3 +13 25 32   0.04512 1.0488   144.1    34.4    21.3
2021 05 21    14 52 36.9 +11 10 18   0.04634 1.0506   145.6    33.0    21.3
...
2021 05 27    14 51 58.5 -00 17 54   0.05522 1.0617   150.9    27.7    21.5
...
2021 06 04    14 53 43.3 -10 56 00   0.07053 1.0764   150.5    27.7    22.1
...
2021 06 19    15 04 45.3 -22 09 07   0.1074  1.1028   142.1    34.5    23.3

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-K49




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