[Iaude] MPEC G58: 2009 HS2 [a=2.52,e=0.82,i=15.9,H=21.9]

mpec at si.edu mpec at si.edu
Thu Apr 6 18:07:49 EDT 2017


M.P.E.C. 2017-G58                                Issued 2017 Apr. 6, 22:04 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 at CFA.HARVARD.EDU
            URL http://www.minorplanetcenter.net/    ISSN 1523-6714


                                   2009 HS2
 
                           Revision to MPEC 2009-H20
 
Additional Observations:
     K09H02S  C2017 04 03.39082 14 41 06.18 +16 31 46.1          19.7 VqEG058G96
     K09H02S  C2017 04 03.39459 14 41 02.85 +16 31 21.9          19.8 VqEG058G96
     K09H02S  C2017 04 03.39843 14 40 59.44 +16 30 57.5          19.7 VqEG058G96
     K09H02S  C2017 04 03.40220 14 40 56.10 +16 30 33.1          20.0 VqEG058G96
     K09H02S  C2017 04 03.45435 14 40 10.23 +16 25 00.0          19.4 VqEG058I52
     K09H02S  C2017 04 03.45477 14 40 09.86 +16 24 57.3          19.6 VqEG058I52
     K09H02S  C2017 04 03.45541 14 40 09.29 +16 24 53.5          19.5 VqEG058I52
     K09H02S  C2017 04 03.45758 14 40 07.40 +16 24 39.4                qEG058I52
     K09H02S  C2017 04 03.50371 14 39 27.15 +16 19 44.8          19.8 VqEG058I52
     K09H02S  C2017 04 03.50412 14 39 26.83 +16 19 42.2          19.7 VqEG058I52
     K09H02S  C2017 04 03.50454 14 39 26.47 +16 19 39.5          19.7 VqEG058I52
     K09H02S  C2017 04 03.50495 14 39 26.11 +16 19 37.0          19.7 VqEG058I52
     K09H02S KC2017 04 03.86132 14 34 32.82 +15 42 15.2          19.1 RoEG058K88
     K09H02S KC2017 04 03.86528 14 34 29.58 +15 41 51.1          19.0 RoEG058K88
     K09H02S KC2017 04 03.86924 14 34 26.29 +15 41 27.2          19.0 RoEG058K88
     K09H02S KC2017 04 03.89715 14 34 03.67 +15 38 37.3          18.7  SEG058104
     K09H02S KC2017 04 03.90594 14 33 56.47 +15 37 43.8          18.7  SEG058104
     K09H02S KC2017 04 03.91034 14 33 52.86 +15 37 16.8          18.7  SEG058104
     K09H02S  C2017 04 04.41443 14 27 14.02 +14 46 50.7          19.4 RoEG058926
     K09H02S  C2017 04 04.41669 14 27 12.28 +14 46 36.9          19.3 RoEG058926
     K09H02S  C2017 04 04.41894 14 27 10.52 +14 46 23.5          19.4 RoEG058926
     K09H02S  C2017 04 04.50042 14 26 07.58 +14 38 20.3          20.3 VqEG058I52
     K09H02S  C2017 04 04.50547 14 26 03.71 +14 37 49.8          20.1 VqEG058I52
     K09H02S  C2017 04 04.50767 14 26 02.01 +14 37 36.4                qEG058I52
     K09H02S KC2017 04 04.91426 14 21 07.38 +13 58 17.2                UEG058J95
     K09H02S KC2017 04 04.92174 14 21 01.97 +13 57 34.6                UEG058J95
     K09H02S KC2017 04 04.92673 14 20 58.32 +13 57 06.6          19.5 GUEG058J95
     K09H02S  C2017 04 05.23140 14 17 25.17 +13 28 55.5          20.5 RuEG058926
     K09H02S  C2017 04 05.23622 14 17 21.72 +13 28 29.7          20.5 RuEG058926
     K09H02S  C2017 04 05.26870 14 16 59.02 +13 25 31.0          19.6 VqEG058I52
     K09H02S  C2017 04 05.26946 14 16 58.48 +13 25 26.8          19.4 VqEG058I52
     K09H02S  C2017 04 05.27022 14 16 57.94 +13 25 22.4          19.6 VqEG058I52
     K09H02S  C2017 04 05.27098 14 16 57.40 +13 25 18.3          19.3 VqEG058I52
     K09H02S  C2017 04 05.36586 14 15 51.22 +13 16 40.7          18.9 RoEG058926
     K09H02S  C2017 04 05.36832 14 15 49.51 +13 16 27.2          18.9 RoEG058926
     K09H02S  C2017 04 05.37208 14 15 46.90 +13 16 06.6          19.0 RoEG058926
     K09H02S 2C2017 04 05.56307 14 13 38.03 +12 59 00.5          19.1 RoEG058F65
     K09H02S 2C2017 04 05.56464 14 13 36.99 +12 58 52.8          19.3 RoEG058F65
     K09H02S 2C2017 04 05.56517 14 13 36.58 +12 58 49.4          19.1 RoEG058F65
     K09H02S 2C2017 04 05.56622 14 13 35.91 +12 58 44.0          19.3 RoEG058F65
     K09H02S 2C2017 04 05.56675 14 13 35.49 +12 58 40.7          19.2 RoEG058F65
     K09H02S 2C2017 04 05.56728 14 13 35.10 +12 58 37.6          19.2 RoEG058F65
     K09H02S 2C2017 04 05.56780 14 13 34.82 +12 58 35.1          18.9 RoEG058F65
     K09H02S 2C2017 04 05.56833 14 13 34.45 +12 58 32.3          19.1 RoEG058F65
     K09H02S 2C2017 04 05.56885 14 13 34.04 +12 58 29.0          19.1 RoEG058F65
     K09H02S  C2017 04 06.23954 14 06 31.87 +12 00 06.1          19.6 VqEG058G96
     K09H02S  C2017 04 06.24098 14 06 30.98 +11 59 59.1          19.1 VqEG058G96
     K09H02S  C2017 04 06.24236 14 06 30.13 +11 59 52.1          19.7 VqEG058G96
     K09H02S  C2017 04 06.24412 14 06 29.05 +11 59 43.1                qEG058G96
     K09H02S KC2017 04 06.33864 14 05 29.82 +11 51 44.5          19.4 RqEG058H36
     K09H02S KC2017 04 06.34518 14 05 25.76 +11 51 11.2          19.9 RqEG058H36
     K09H02S KC2017 04 06.35824 14 05 17.75 +11 50 06.9          19.7 RqEG058H36
     K09H02S  C2017 04 06.37432 14 05 08.43 +11 48 50.0          20.0 VqEG058G96
     K09H02S KC2017 04 06.37566 14 05 07.08 +11 48 39.7          19.7 RqEG058H36
     K09H02S  C2017 04 06.37858 14 05 05.85 +11 48 29.8          20.4 VqEG058G96
     K09H02S  C2017 04 06.38283 14 05 03.21 +11 48 08.3          20.9 VqEG058G96
     K09H02S  C2017 04 06.38709 14 05 00.65 +11 47 47.2          20.5 VqEG058G96
 
Observer details:
104 San Marcello Pistoiese.  Observers P. Bacci, M. Maestripieri.  Measurers
    P. Bacci, L. Tesi, G. Fagioli.  0.60-m f/4 reflector + CCD.
926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
    M. Schwartz.  0.41-m f/3.75 astrograph + CCD, 0.81-m f/7 Ritchey-Chretien
    + CCD.
F65 Haleakala-Faulkes Telescope North.  Observers L. Barona Felgosa, L. Belli,
    M. Bilhaj, M. Bosse, P. Breitenstein, M. Schmidt.  2.0-m Ritchey-Chretien
    + CCD.
G96 Mt. Lemmon Survey.  Observers R. G. Matheny, D. C. Fuls.  Measurers
    E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson,
    R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman,
    F. C. Shelly.  1.5-m reflector + 10K CCD.
H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer E. J. Christensen.
    Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
    J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny,
    R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
    + CCD.
K88 GINOP-KHK, Piszkesteto.  Observer K. Sarneczky.  0.60-m Schmidt + CCD.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or integer in degrees), reference and Delta-T
170403 G96   66-   54+    170406 G96   77-   49+    MPO157533   -664 day
 
Orbital elements:
2009 HS2                                                 Earth MOID = 0.1059 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
M   1.71572              (2000.0)            P               Q
n   0.24580761     Peri.   54.75729     +0.08885117     -0.98599624
a   2.5239021      Node    31.06874     +0.80174139     -0.01327710
e   0.8194305      Incl.   15.87069     +0.59102979     +0.16623818
P   4.01           H   21.9           G   0.15           U   3
Residuals in seconds of arc
090418 G96  0.0   0.1+    170403 G96  0.1+  0.1-    170405 I52  0.3+  0.0
090418 G96  0.8-  0.2+    170403 G96  0.1-  0.1+    170405 I52  0.1+  0.0
090418 G96  0.3-  0.1+    170403 G96  0.2-  0.3-    170405 I52  0.0   0.2-
090418 G96  0.0   0.2-    170403 I52  0.2+  0.2-    170405 I52  0.1-  0.2-
090418 G96  0.0   0.2-    170403 I52  0.2+  0.2-    170405 926  0.2-  0.0
090418 G96  0.0   0.2+    170403 I52  0.0   0.1+    170405 926  0.3-  0.0
090418 G96  0.6+  0.0     170403 I52  0.2+  0.2-    170405 926  0.3-  0.1-
090418 G96  0.6-  0.1-    170403 I52  0.4-  0.1-    170405 F65  0.6+  0.0
090418 G96  0.1+  0.1-    170403 I52  0.1+  0.0     170405 F65  0.9+  0.8+
090418 G96  0.1+  0.2-    170403 I52  0.2+  0.1-    170405 F65  0.2+  0.3+
090418 G96  0.3+  0.3-    170403 I52  0.1+  0.1+    170405 F65  0.8+  0.5+
090418 G96  0.1+  0.1+    170403 K88  0.3-  0.2+    170405 F65  0.1-  0.1+
090418 G96  0.3+  0.3-    170403 K88  0.1+  0.3+    170405 F65  0.6-  0.2-
090418 G96  0.6+  0.2+    170403 K88  0.3-  0.6+    170405 F65  0.5+  0.1+
090418 G96  0.3+  0.1+    170403 104  0.5-  0.2-    170405 F65  0.3+  0.2+
090419 G96  0.4+  0.1-    170403 104  0.1-  0.1-    170405 F65  0.5-  0.3-
090419 G96  0.6+  0.5-    170403 104  0.0   0.2-    170406 G96  0.3-  0.0
090419 G96  0.7-  0.1-    170404 926  0.4-  0.5+    170406 G96  0.3-  0.2+
090419 291  0.4+  0.0     170404 926  0.1-  0.1+    170406 G96  0.2-  0.2+
090419 291  0.7-  0.0     170404 926  0.2-  0.1+    170406 G96  0.0   0.0
090419 291  0.1-  0.2+    170404 I52  0.2+  0.4+    170406 H36  0.0   0.4-
090420 G96  0.5-  0.1-    170404 I52  0.1+  0.3-    170406 H36  0.5-  0.9-
090420 G96  0.3+  0.2+    170404 I52  0.1-  0.6-    170406 H36  0.1-  0.3+
090420 H01  0.1-  0.1+    170404 J95  0.3+  0.3+    170406 G96  0.5-  1.0-
090420 H01  0.1+  0.1+    170404 J95  0.3+  0.2-    170406 H36  0.2+  0.4+
090420 H01  0.0   0.2+    170404 J95  0.3-  0.0     170406 G96  0.1+  0.1+
090420 H01  0.0   0.1+    170405 926  0.5+  0.4-    170406 G96  0.4-  0.2-
170403 G96  0.0   0.1+    170405 926  0.6-  0.2+    170406 G96  0.5+  0.0

Ephemeris:
2009 HS2                 a,e,i = 2.52, 0.82, 16                  q = 0.4557
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 03 07    22 24 13.2 +18 43 14   0.3154  0.7242    26.6   142.2    25.8
...
2017 03 22    19 38 52.0 +30 39 10   0.1469  0.9553    69.6   102.1    21.4
...
2017 03 30    16 04 28.4 +25 02 28   0.1360  1.0759   121.5    52.4    19.7
...
2017 04 05    14 20 05.2 +13 50 49   0.1829  1.1640   151.2    24.5    19.7
2017 04 06    14 08 58.6 +12 20 51   0.1937  1.1785   154.6    21.4    19.7
2017 04 07    13 59 08.2 +10 58 34   0.2050  1.1928   157.5    18.8    19.8
...
2017 04 13    13 18 44.0 +04 56 04   0.2818  1.2779   166.0    10.9    20.4
...
2017 04 21    12 51 54.4 +00 25 33   0.3999  1.3878   160.2    14.2    21.4
...
2017 05 06    12 33 43.6 -03 51 26   0.6527  1.5832   143.8    22.1    23.0

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-G58




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