[Iaude] MPEC E129: 2024 ER2 [a=2.53,e=0.75,i=4.7,H=20.1,PHA]

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-E129                                Issued 2024 March 8, 17:21 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

                                    2024 ER2                                    


Observations:
     K24E02R  C2024 03 02.47429211 32 58.552-03 47 08.03         21.27GVEE129F51
     K24E02R  C2024 03 02.48634811 32 57.456-03 47 02.31         21.11GVEE129F51
     K24E02R  C2024 03 02.49835711 32 56.364-03 46 56.17         21.61GVEE129F51
     K24E02R  C2024 03 02.51034311 32 55.271-03 46 50.35         20.91GVEE129F51
     K24E02R*1C2024 03 07.35940111 25 12.266-03 01 24.24         21.00GVEE129G96
     K24E02R 1C2024 03 07.36508011 25 11.662-03 01 20.93         21.09GVEE129G96
     K24E02R 1C2024 03 07.37079411 25 11.017-03 01 17.00         20.90GVEE129G96
     K24E02R 1C2024 03 07.37649811 25 10.358-03 01 13.48         20.85GVEE129G96
     K24E02R KC2024 03 07.42071711 25 05.632-03 00 45.65         20.62GVEE129I52
     K24E02R KC2024 03 07.42242711 25 05.462-03 00 44.68         21.55GVEE129I52
     K24E02R KC2024 03 07.42413811 25 05.254-03 00 43.09         21.03GVEE129I52
     K24E02R KC2024 03 07.42584411 25 05.063-03 00 41.80         21.29GVEE129I52
     K24E02R 1C2024 03 07.96007 11 24 09.11 -02 54 59.4          21.3 VXEE129033
     K24E02R 1C2024 03 07.96215 11 24 08.95 -02 54 58.2          20.5 VXEE129033
     K24E02R 1C2024 03 07.96423 11 24 08.71 -02 54 56.8          20.5 VXEE129033
     K24E02R |C2024 03 08.11113011 23 53.400-02 53 05.60         20.8 GVEE129807
     K24E02R |C2024 03 08.11663011 23 52.800-02 53 01.50         20.7 GVEE129807
     K24E02R |C2024 03 08.12213311 23 52.190-02 52 58.00         20.4 GVEE129807

Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, C.
    Hogner, F. Ludwig, M. Hartmann, B. Stecklum.  Measurer B. Stecklum.
    1.34-m f/3 Schmidt + CCD.
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes.
    0.61-m f/6.8 Ritchey-Chretien + CCD.
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.
G96 Mt. Lemmon Survey.  Observer J. B. Fazekas.  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.  1.5-m reflector +
    10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observers V. F. Carvajal, G. J.
    Leonard.  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.

Orbital elements:
2024 ER2                                            PHA, Earth MOID = 0.0031 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Veres                   
M 339.41667              (2000.0)            P               Q                  
n   0.24487896     Peri.   83.81890     +0.31301022     +0.94914260             
a   2.5302789      Node   204.50535     -0.90054685     +0.28524670             
e   0.7483793      Incl.    4.69563     -0.30172831     +0.13327658             
P   4.02           H   20.15          G   0.15           U   9                  
Residuals in seconds of arc
240302 F51  0.0   0.0     240307 G96  0.1-  0.2+    240307 033  1.2-  0.1+
240302 F51  0.0   0.2-    240307 G96  0.7-  0.1+    240307 033  0.2-  0.0
240302 F51  0.0   0.1+    240307 I52  0.1+  0.3-    240307 033  0.4-  0.0
240302 F51  0.0   0.0     240307 I52  0.3+  0.4-    240308 807  0.0   0.3-
240307 G96  0.2+  0.2+    240307 I52  0.0   0.0     240308 807  0.1+  0.2+
240307 G96  0.3+  0.1-    240307 I52  0.1-  0.3+    240308 807  0.1+  0.1+

Ephemeris:
2024 ER2                 a,e,i = 2.53, 0.75, 5                   q = 0.6367
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 02 07    11 52 29.7 -05 09 05   1.2060  2.0394   136.7    19.4    23.1
...
2024 02 22    11 44 05.7 -04 44 30   0.9524  1.8903   153.6    13.4    22.2
...
2024 03 01    11 35 02.5 -03 58 36   0.8354  1.8076   163.5     8.9    21.6
...
2024 03 07    11 25 49.7 -03 05 05   0.7573  1.7441   170.8     5.2    21.2
2024 03 08    11 24 05.0 -02 54 24   0.7451  1.7334   171.8     4.7    21.1
2024 03 09    11 22 16.6 -02 43 13   0.7332  1.7227   172.7     4.2    21.0
...
2024 03 15    11 10 11.9 -01 24 57   0.6672  1.6575   171.7     5.0    20.8
...
2024 03 23    10 51 03.2 +00 48 33   0.5938  1.5687   160.4    12.3    20.7
...
2024 04 07    10 08 56.3 +06 10 23   0.4984  1.3962   134.5    30.8    20.7

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-E129