[Iaude] MPEC A29: 2021 YN [a=1.65,e=0.69,i=7.0,H=21.02]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Wed Jan 3 09:11:46 EST 2024


M.P.E.C. 2024-A29                               Issued 2024 January 3, 14:10 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

                                    2021 YN                                     


                           Revision to MPEC 2021-Y65                            

Additional Observations:
     K21Y00N  C2023 12 10.27773 05 02 05.52 +19 05 16.6          22.1 GVEA029V06
     K21Y00N  C2023 12 10.28512 05 02 04.39 +19 05 15.6          21.9 GVEA029V06
     K21Y00N  C2023 12 10.29251 05 02 03.26 +19 05 15.9          23.0 GVEA029V06
     K21Y00N  C2023 12 10.29990 05 02 02.15 +19 05 15.4          21.9 GVEA029V06
     K21Y00N 0C2023 12 12.49263804 56 29.851+19 03 43.76         22.47GVEA029T12
     K21Y00N 0C2023 12 12.49512804 56 29.464+19 03 43.60         22.45GVEA029T12
     K21Y00N 0C2023 12 12.49783804 56 29.038+19 03 43.46         22.50GVEA029T12
     K21Y00N  C2023 12 15.46878604 48 44.071+19 01 03.34         22.56GVEA029F51
     K21Y00N  C2023 12 15.51216204 48 36.989+19 01 00.32         21.43GVEA029F51
     K21Y00N 0C2023 12 16.43071804 46 10.634+19 00 03.60         22.76GVEA029T12
     K21Y00N 0C2023 12 16.43513104 46 09.909+19 00 03.29         22.67GVEA029T12
     K21Y00N 0C2023 12 16.43885804 46 09.299+19 00 03.03         22.73GVEA029T12
     K21Y00N 0C2023 12 16.44304804 46 08.607+19 00 02.72         22.71GVEA029T12
     K21Y00N  C2024 01 01.23139304 03 54.752+18 36 20.93         22.17GVEA029F51
     K21Y00N  C2024 01 01.24433904 03 52.728+18 36 19.74         22.32GVEA029F51
     K21Y00N  C2024 01 01.27021504 03 48.714+18 36 17.43         22.88GVEA029F51

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Herman, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
    Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
    Weryk.  1.8-m Ritchey-Chretien + CCD.
T12 University of Hawaii 88-inch telescope, Maunakea.  Observer D. J. Tholen.
    2.24-m f/10.1 reflector + 2112 x 2112 pixels STA1600 10k CCD.
V06 Catalina Sky Survey-Kuiper.  Observer G. J. Leonard.  Measurers B. Gray,
    D. Rankin, F. C. Shelly.  1.55-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
231210 V06 0.10- 0.02-    240101 F51 0.07- 0.03-    E2023-R01   +0.00 days

Orbital elements:
2021 YN                                                  Earth MOID = 0.0528 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 256.17460              (2000.0)            P               Q                  
n   0.46483630     Peri.  127.28057     -0.77411954     +0.62128971             
a   1.6504512      Node    91.45826     -0.61243245     -0.68648694             
e   0.6941431      Incl.    6.97520     -0.16020438     -0.37780257             
P   2.12           H   21.02          G   0.15           U   1                  
Residuals in seconds of arc
211207 G96  0.0   0.1+    220104 I52  0.0   0.2-    220111 T08  0.1+  0.0
211207 G96 (0.9-  0.2-)   220104 G96  0.0   0.0     220111 D29  0.4-  0.3+
211226 D29  0.5+  0.4+    220104 G96  0.0   0.0     220111 D29  0.1-  0.1-
211226 D29  0.1+  0.2+    220104 G96  0.1+  0.1-    220111 D29  0.1-  0.2-
211226 D29  0.6-  0.3-    220104 G96  0.0   0.0     220112 L18  0.6-  1.3+
211227 I52  0.2+  0.3+    220106 F52  0.0   0.0     220112 L18  1.4-  0.5+
211227 I52  0.2-  0.0     220106 F52  0.0   0.0     220112 L18  0.3-  1.2+
211227 I52  0.1+  0.1-    220106 F52  0.0   0.0     220112 K87  1.3-  0.1-
211227 N88  0.1+  0.2-    220106 A17  0.1+  0.1+    220112 K87  0.2-  0.1+
211227 D29  0.0   0.0     220106 A17  0.3-  0.2+    220112 K87  0.2-  0.1+
211227 N88  0.0   0.1-    220106 A17  0.1+  0.0     220113 T05  0.4+  0.6-
211227 D29  0.0   0.0     220106 K87  0.2-  0.3-    220113 T05  0.1+  0.2-
211227 N88  0.0   0.0     220106 K87  0.2+  0.2+    220113 T05  0.0   0.2-
211227 D29  0.1+  0.1-    220106 K87  0.2-  0.2+    220113 T05  0.1+  0.1-
211227 119  0.1-  0.0     220107 I52  0.1+  0.0     220113 K87  0.4-  0.1+
211227 119  0.0   0.1+    220107 I52  0.1+  0.1-    220113 K87  0.3+  0.2+
211227 119  0.2-  0.1+    220107 I52  0.1+  0.1+    220113 K87  0.2-  0.0
211227 119  0.0   0.1-    220107 I52  0.1-  0.1+    220116 130  0.2-  0.2+
211227 119  0.2-  0.3+    220107 K88  0.2-  0.5-    220116 130  0.1+  0.3+
211227 N88  0.3+  0.1+    220107 K88  0.2-  0.5-    220116 130  0.1-  0.1+
211227 N88  0.2+  0.2-    220107 K88  0.1-  0.7-    220116 130  0.0   0.3-
211227 033  0.1-  0.4-    220107 K88  0.3-  0.4-    220116 J95  0.0   0.1+
211227 033  0.3-  0.2-    220107 K88  0.3-  0.4-    220116 J95  0.1+  0.1+
211227 033  0.3-  0.3-    220107 K88  0.0   0.4-    220116 J95  0.2+  0.1+
211227 033  0.2-  0.3-    220108 I52  0.1+  0.1-    220116 J95  0.0   0.1-
211228 B49  0.3+  1.2-    220108 I52  0.0   0.0     220117 W46  1.3+  0.3-
211228 B49  0.1+  1.4-    220108 I52  0.1+  0.0     220117 W46  1.1+  0.1+
211230 H06  0.2+  0.1+    220108 I52  0.1+  0.0     220117 W46  1.5+  0.2-
211230 H06  0.1+  0.1-    220108 T05  0.0   0.2-    220118 K38  0.1-  0.0
211230 H06  0.0   0.1+    220108 T05  0.0   0.4+    220118 K38  0.3-  0.4-
211231 C95  0.1+  0.1+    220108 T05  0.1+  0.1+    220118 K38  0.1-  0.2+
211231 C95  0.2+  0.2+    220108 T05  0.2+  0.2-    220118 K38  0.2-  0.2+
211231 C95  0.1-  0.0     220109 I52  0.1+  0.1-    220118 K38  0.0   0.2+
211231 C95  0.2+  0.0     220109 I52  0.0   0.1-    220118 L63  0.0   0.0
220101 204  0.2-  0.0     220109 I52  0.0   0.1-    220118 L63  0.5+  0.3+
220101 204  0.0   0.1+    220109 I52  0.2+  0.2-    220118 L63  0.5+  0.5+
220101 204  0.1+  0.0     220109 T05  0.1-  0.2+    220119 C51  0.0   0.1-
220101 033  0.1-  0.0     220109 T05  0.1-  0.3+    220121 595  0.1+  0.7+
220101 033  0.0   0.1+    220109 T05  0.1+  0.1-    220121 595  0.6+  0.4-
220101 033  0.1+  0.1+    220110 I52  0.0   0.1-    220121 595  0.5+  0.4-
220102 K38  0.1-  0.1-    220110 I52  0.1+  0.1-    220121 K83  0.0   0.2-
220102 K38  0.1-  0.3-    220110 I52  0.1+  0.0     220121 K83  0.1+  0.1-
220102 K38  0.1+  0.3+    220110 I52  0.1+  0.1-    231210 V06  0.1+  0.3+
220102 033  0.0   0.0     220110 703  0.1-  0.2+    231210 V06  0.0   0.4-
220102 033  0.1+  0.0     220110 703  0.1-  0.0     231210 V06  0.0   0.2+
220102 033  0.0   0.1-    220110 703  0.3-  0.0     231210 V06  0.2+  0.0
220102 Z99  0.3-  0.4+    220110 G96  0.0   0.1-    231212 T12  0.1-  0.0
220102 Z99  0.5-  0.6+    220110 G96  0.1+  0.2-    231212 T12  0.0   0.0
220102 Z99  0.2-  0.3+    220110 G96  0.2+  0.1-    231212 T12  0.0   0.0
220102 Z99  0.6-  0.5+    220110 G96  0.1+  0.2-    231215 F51  0.1+  0.1-
220103 Z99  0.5-  0.1+    220110 F52  0.0   0.0     231215 F51  0.3-  0.0
220103 033  0.0   0.1-    220110 F52  0.1-  0.1+    231216 T12  0.1-  0.0
220103 033  0.1+  0.0     220110 F52  0.0   0.0     231216 T12  0.1-  0.0
220103 033  0.1+  0.1+    220110 T08  0.0   0.2-    231216 T12  0.0   0.0
220103 033  0.1+  0.0     220110 T08  0.0   0.4+    231216 T12  0.1-  0.0
220104 I52  0.0   0.0     220110 T08  0.3+  0.1+    240101 F51  0.1+  0.1+
220104 I52  0.0   0.1-    220111 T08  0.3+  0.1-    240101 F51  0.0   0.1+
220104 I52  0.1+  0.0     220111 T08  0.1+  0.3-    240101 F51  0.2+  0.2+

Ephemeris:
2021 YN                  a,e,i = 1.65, 0.69, 7                   q = 0.5048
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 12 04    05 16 45.6 +19 08 01   0.9534  1.9326   170.6     4.8    22.8
...
2023 12 19    04 39 15.8 +18 57 04   0.8455  1.8121   164.1     8.5    22.5
...
2023 12 27    04 17 33.5 +18 45 11   0.8166  1.7435   151.1    15.8    22.6
...
2024 01 02    04 01 58.6 +18 35 05   0.8064  1.6900   141.4    21.3    22.7
2024 01 03    03 59 29.9 +18 33 26   0.8055  1.6809   139.8    22.2    22.7
2024 01 04    03 57 03.7 +18 31 50   0.8049  1.6718   138.2    23.1    22.8
...
2024 01 10    03 43 27.8 +18 23 34   0.8053  1.6158   128.9    28.3    22.8
...
2024 01 18    03 28 33.7 +18 18 44   0.8141  1.5381   117.3    34.6    22.9
...
2024 02 02    03 11 23.3 +18 38 14   0.8395  1.3828    98.2    44.8    23.1

A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-A29





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