[Iaude] MPEC J112: 2019 LD42 [a=1.09,e=0.24,i=22.2,H=28.6]

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-J112                                  Issued 2024 May 7, 16:46 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

                                   2019 LD42                                    


Observations:
     K19L42D* C2019 06 06.24751817 37 29.25 +40 11 40.3          18.95RUEJ112I41
     K19L42D  C2019 06 06.24786417 37 27.31 +40 11 37.4          18.95RUEJ112I41
     K19L42D  C2019 06 06.26144717 36 06.84 +40 09 43.2          18.99RUEJ112I41
     K19L42D  C2019 06 06.26179417 36 04.74 +40 09 40.0          18.99RUEJ112I41
     K19L42D  C2019 06 06.33135717 29 55.36 +39 58 48.5          19.93gUEJ112I41
     K19L42D  C2019 06 06.33170417 29 53.65 +39 58 44.8          19.93gUEJ112I41
     K19L42D KC2019 06 07.03708617 05 33.13 +38 42 09.6          21.1 VSEJ112L01
     K19L42D KC2019 06 07.03922717 05 30.42 +38 42 00.2          21.0 VSEJ112L01
     K19L42D KC2019 06 07.04136417 05 27.62 +38 41 51.1          21.2 VSEJ112L01
     K19L42D KC2019 06 07.04783417 05 19.53 +38 41 22.1          21.0 VSEJ112L01

Observer details:
I41 Palomar Mountain--ZTF.  Observers Q.-Z. Ye, Z. T. F. Collaboration.
    Measurers D. A. Duev, H.-W. Lin, A. A. Mahabal, F. J. Masci, Q.-Z. Ye.
    1.2-m f/2.4 Schmidt.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.

Orbital elements:
2019 LD42                                                Earth MOID = 0.0006 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Veres                   
M 143.51266              (2000.0)            P               Q                  
n   0.86553883     Peri.  273.81255     -0.90741363     -0.20940155             
a   1.0904649      Node   254.37891     +0.31958899     -0.90685070             
e   0.2357066      Incl.   22.22995     -0.27287978     -0.36574965             
P   1.14           H   28.66          G   0.15           U   8                  
Residuals in seconds of arc
190606 I41  0.4-  0.3+    190606 I41  0.2+  0.1+    190607 L01  0.6-  0.2+
190606 I41  1.2+  0.3+    190606 I41  0.2-  0.2-    190607 L01  0.3-  0.1+
190606 I41  0.3+  0.0     190607 L01  0.4+  0.2-
190606 I41  0.7-  0.2-    190607 L01  0.5+  0.1-

Ephemeris:
2019 LD42                a,e,i = 1.09, 0.24, 22                  q = 0.8334
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 04 07    23 00 42.6 +08 10 42   2.0840  1.3238    30.6    22.6    31.9
...
2024 04 22    23 40 55.9 +13 24 01   2.0534  1.3397    33.8    24.6    32.0
...
2024 04 30    00 02 37.6 +16 05 38   2.0324  1.3447    35.4    25.7    32.0
...
2024 05 06    00 19 07.0 +18 03 28   2.0146  1.3468    36.6    26.5    32.0
2024 05 07    00 21 53.3 +18 22 46   2.0114  1.3470    36.8    26.7    32.0
2024 05 08    00 24 39.9 +18 41 59   2.0082  1.3472    37.0    26.8    32.0
...
2024 05 14    00 41 29.4 +20 34 59   1.9879  1.3474    38.2    27.6    32.0
...
2024 05 22    01 04 24.9 +22 58 46   1.9580  1.3456    39.7    28.8    32.0
...
2024 06 06    01 49 21.1 +27 02 08   1.8939  1.3357    42.5    30.9    32.0

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-J112