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    • MPEC 2021-L44 : 2021 LS

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    M.P.E.C. 2021-L44                                  Issued 2021 June 4, 07:01 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@CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                 2021 LS                                 


Observations:
     K21L00S  C2021 06 01.32297 16 13 10.40 +22 06 08.0          20.8 GVEL044G96
     K21L00S  C2021 06 01.32484 16 13 09.88 +22 05 59.1          21.4 GVEL044G96
     K21L00S  C2021 06 01.32815 16 13 08.84 +22 05 42.4          21.1 GVEL044G96
     K21L00S  C2021 06 01.33003 16 13 08.28 +22 05 33.4          21.4 GVEL044G96
     K21L00S  C2021 06 01.33521 16 13 06.66 +22 05 07.3          21.9 GVEL044G96
     K21L00S* C2021 06 03.47521516 02 11.910+18 47 12.55         21.33wUEL044F51
     K21L00S  C2021 06 03.48858816 02 07.290+18 45 49.27         21.58wUEL044F51
     K21L00S  C2021 06 03.50191016 02 02.713+18 44 26.06         21.70wUEL044F51
     K21L00S  C2021 06 03.56548316 01 41.055+18 37 48.30         20.86GVEL044F51
     K21L00S  C2021 06 03.56612716 01 40.820+18 37 43.79         20.93GVEL044F51
     K21L00S pC2021 06 03.91868615 59 47.92 +18 00 22.8          21.6 GVEL044L01
     K21L00S IC2021 06 03.92041715 59 47.32 +18 00 11.0          21.4 GVEL044L01
     K21L00S KC2021 06 03.93081215 59 43.67 +17 59 04.9          21.2 GVEL044L01
     K21L00S KC2021 06 04.09192115 58 49.86 +17 42 39.7                XEL044Y00
     K21L00S KC2021 06 04.10806115 58 44.10 +17 40 54.4          20.7 GXEL044Y00
     K21L00S KC2021 06 04.12418415 58 38.28 +17 39 08.4          20.8 GXEL044Y00
     K21L00S KC2021 06 04.13940915 58 35.18 +17 36 33.4          20.9 VuEL044H21
     K21L00S KC2021 06 04.14686915 58 32.55 +17 35 44.6          20.9 VuEL044H21
     K21L00S KC2021 06 04.15457815 58 29.83 +17 34 54.2          20.9 VuEL044H21
     K21L00S KC2021 06 04.15619315 58 29.25 +17 34 43.4          20.8 VuEL044H21

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, M.
    Willman, K. Chambers, I. Smith.  Measurers K. Chambers, S. Chastel, T. de
    Boer, L. Denneau, J. Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E.
    Magnier, Y. Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien +
    CCD.
G96 Mt. Lemmon Survey.  Observer T. A. Pruyne.  Measurers E. J. Christensen,
    B. Gray, D. Rankin, F. C. Shelly.  1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers T. Linder, R. Holmes, L. Horn.  0.81-m f/4.0 astrograph + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
    + CCD.
Y00 SONEAR Observatory, Oliveira.  Observers C. Jacques, E. Pimentel, J.
    Barros.  Measurer C. Jacques.  0.45-m f/2.9 reflector + CCD.

Orbital elements:
2021 LS                                                  Earth MOID = 0.0806 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
M 228.95792              (2000.0)            P               Q                  
n   0.58120250     Peri.  225.78293     +0.49829038     +0.72507288             
a   1.4220594      Node    80.08629     -0.59185678     +0.68512924             
e   0.2752978      Incl.   28.85372     -0.63357103     -0.06976572             
P   1.70           H   23.47          G   0.15           U   8                  
Residuals in seconds of arc
210601 G96  0.4-  0.4-    210603 F51  0.0   0.3-    210604 Y00  0.7+  0.5+
210601 G96  0.4+  0.0     210603 F51  0.1-  0.1+    210604 Y00  0.2+  0.2+
210601 G96  0.0   0.1-    210603 F51  0.3-  0.3-    210604 H21  0.2-  0.1+
210601 G96  0.2+  0.3+    210603 L01  0.1-  0.2+    210604 H21  0.0   0.0
210601 G96  0.3-  0.2+    210603 L01  0.0   0.4-    210604 H21  0.1+  0.1+
210603 F51  0.2+  0.3+    210603 L01  0.3-  0.2+    210604 H21  0.1+  0.1-
210603 F51  0.0   0.0     210604 Y00  0.3+  0.2+

Ephemeris:
2021 LS                  a,e,i = 1.42, 0.28, 29                  q = 1.0306
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 05 05    17 15 33.3 +34 09 38   0.4042  1.2534   118.6    44.9    23.7
...
2021 05 20    16 55 06.5 +31 49 01   0.2754  1.1939   125.7    43.5    22.7
...
2021 05 28    16 31 29.9 +26 57 30   0.2108  1.1639   131.5    40.7    22.0
...
2021 06 03    16 04 45.8 +19 34 58   0.1673  1.1425   137.1    37.2    21.4
2021 06 04    15 59 21.0 +17 52 08   0.1607  1.1391   138.0    36.5    21.3
2021 06 05    15 53 37.5 +15 58 58   0.1545  1.1356   139.0    35.9    21.2
...
2021 06 11    15 12 07.4 +00 28 15   0.1248  1.1160   141.7    34.3    20.6
...
2021 06 19    13 56 17.0 -28 17 11   0.1178  1.0922   127.7    47.4    20.8
...
2021 07 04    11 09 27.4 -57 42 46   0.1928  1.0566    96.7    72.9    22.6

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-L44

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