[Iaude] MPEC K28: 2022 KE2 [a=1.55,e=0.68,i=10.4,H=21.68]

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Sun May 19 10:10:42 EDT 2024


M.P.E.C. 2024-K28                                  Issued 2024 May 19, 14:09 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets, routine data on comets and natural satellites,
         and occasional editorial announcements.  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

                                    2022 KE2                                    


                           Revision to MPEC 2022-K87                            

Additional Observations:
     K22K02E 4C2019 04 05.26291 08 55 28.81 +04 00 12.3          25.2 r1EK028T09
     K22K02E 4C2019 04 05.26572 08 55 28.86 +04 00 13.7          24.9 r1EK028T09
     K22K02E 4C2019 04 05.28844 08 55 29.14 +04 00 24.6          25.0 r1EK028T09
     K22K02E 4C2019 04 05.30984 08 55 29.41 +04 00 35.5          25.0 r1EK028T09
     K22K02E 4C2019 04 05.32878 08 55 29.67 +04 00 44.8          25.0 r1EK028T09
     K22K02E KC2024 05 18.42008117 08 35.502-05 57 31.43         20.85GVEK028I52
     K22K02E KC2024 05 18.42368817 08 35.192-05 57 21.67         20.87GVEK028I52
     K22K02E KC2024 05 18.42729417 08 34.890-05 57 12.67               VEK028I52

Observer details:
I52 Steward Observatory, Mt. Lemmon Station.  Observer J. K. Hogan.  Measurers
    T. Beuden, V. F. Carvajal, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs,
    A. D. Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G.
    J. Leonard, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.0-m
    prime focus + CCD.
T09 Subaru Telescope, Maunakea.  Observers H. Aihara, Y. AlSayyad, M. Ando, R.
    Armstrong, J. Bosch, E. Egami, H. Furusawa, J. Furusawa, S. Harasawa, Y.
    Harikane, B.-C. Hsieh, H. Ikeda, K. Ito, I. Iwata, T. Kodama, M. Koike, M.
    Kokubo, Y. Komiyama, X. Li, Y. Liang, Y.-T. Lin, R. H. Lupton, N. B. Lust,
    L. A. MacArthur, K. Mawatari, S. Mineo, H. Miyatake, S. Miyazaki, S. More,
    T. Morishima, H. Murayama, K. Nakajima, F. Nakata, A. J. Nishizawa, M.
    Oguri, N. Okabe, Y. Okura, Y. Ono, K. Osato, M. Ouchi, Y.-C. Pan, A. A.
    Plazas Malagon, P. A. Price, S. L. Reed, E. S. Rykoff, T. Shibuya, M.
    Simunovic, M. A. Strauss, K. Sugimori, Y. Suto, N. Suzuki, M. Takada, Y.
    Takagi, T. Takata, S. Takita, M. Tanaka, S. Tang, D. S. Taranu, T. Terai,
    Y. Toba, E. L. Turner, H. Uchiyama, B. Vijarnwannaluk, C. Z. Waters, Y.
    Yamada, N. Yamamoto, T. Yamashita.  Measurer A. Yamauchi.  8.2-m f/2.0
    reflector + CCD(HSC).

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
190405 T09 0.49+ 0.15+    240518 I52 1.16+ 0.14+    E2024-F14   +0.01 days

Orbital elements:
2022 KE2                                                 Earth MOID = 0.1362 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Veres                   
M 293.04890              (2000.0)            P               Q                  
n   0.50863462     Peri.  152.66469     +0.98545197     -0.13399019             
a   1.5542902      Node   215.52293     +0.10339244     +0.96088685             
e   0.6752265      Incl.   10.36640     +0.13488670     +0.24236974             
P   1.94           H   21.68          G   0.15           U   2                  
Residuals in seconds of arc
190405 T09  0.1-  0.3+    220523 V06  0.4-  0.1+    220531 I52  0.4+  0.2+
190405 T09  0.2+  0.3+    220523 V06  0.2-  0.0     220531 I52  0.3-  0.2+
190405 T09  0.0   0.1-    220524 807  0.3+  0.1-    220603 V06  0.0   0.3-
190405 T09  0.1-  0.2+    220524 807  0.1+  0.6-    220603 V06  0.3+  0.1-
190405 T09  0.2+  0.1+    220524 807  0.8-  0.3-    220603 V06  0.1-  0.1+
220521 F52  0.2-  0.0     220524 H21  0.4-  0.1+    220603 V06  0.1-  0.1+
220521 F52  0.0   0.0     220524 H21  0.0   0.5+    220607 291  0.2-  0.3+
220521 F52  0.2-  0.1+    220524 H21  0.4-  0.3+    220607 291  0.2+  0.1-
220521 F52  0.1+  0.0     220524 568  0.1+  0.0     220607 291  0.2-  0.2+
220522 V06  0.2+  0.4-    220524 033  0.5-  0.9+    220607 V06  0.1+  0.0
220522 V06  0.3+  0.1+    220524 033  0.0   0.4+    220607 V06  0.4-  0.1-
220522 V06  0.1+  0.0     220524 033  0.3+  0.2+    220607 V06  0.2-  0.1+
220522 G96  0.6-  0.1-    220527 V06  0.0   0.1-    240518 I52  0.3+  0.1-
220522 G96  0.8-  0.1-    220527 V06  0.1-  0.0     240518 I52  0.0   0.3+
220523 V06  0.2-  0.0     220527 V06  0.2-  0.0     240518 I52  0.3-  0.0
220523 V06  0.1-  0.1+    220531 I52  0.4+  0.2-

Ephemeris:
2022 KE2                 a,e,i = 1.55, 0.68, 10                  q = 0.5048
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 04 19    17 13 44.8 -17 15 04   0.8258  1.6600   129.9    27.6    23.6
...
2024 05 04    17 17 11.4 -13 18 15   0.5918  1.5237   143.1    23.4    22.6
...
2024 05 12    17 14 22.1 -09 52 00   0.4794  1.4459   150.2    20.3    21.9
...
2024 05 18    17 09 05.7 -06 15 12   0.4018  1.3850   154.5    18.3    21.4
2024 05 19    17 07 53.0 -05 32 00   0.3894  1.3747   155.1    18.1    21.3
2024 05 20    17 06 33.7 -04 46 24   0.3773  1.3643   155.5    17.9    21.2
...
2024 05 26    16 55 52.0 +00 48 44   0.3089  1.3005   155.6    18.8    20.7
...
2024 06 03    16 30 42.3 +12 12 40   0.2318  1.2121   145.3    28.4    20.2
...
2024 06 18    14 08 12.3 +49 24 47   0.1630  1.0361    92.5    78.4    20.6

A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-K28





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