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78941 (2003 SN169)
Classification: Main-belt Asteroid          SPK-ID: 2078941
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09504425872881626 3.8909e-08  
a 2.368562875777385 1.0042e-08 au
q 2.14344457299653 9.0971e-08 au
i 6.093015658281111 3.953e-06 deg
node 158.1877301037559 4.1102e-05 deg
peri 286.7339991506742 4.7457e-05 deg
M 137.3828691808211 2.4582e-05 deg
tp 2458492.392172609792
(2019-Jan-08.89217261)
8.9845e-05 TDB
period 1331.452887475513
3.65
8.4678e-06
2.318e-08
d
yr
n .2703813280863239 1.7196e-09 deg/d
Q 2.59368117855824 1.0997e-08 au
  Orbit Determination Parameters
   # obs. used (total)      675  
   data-arc span      9605 days (26.30 yr)  
   first obs. used      1994-03-06  
   last obs. used      2020-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51637  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:24:58  

Additional Information
 Earth MOID = 1.16904 au 
 Jupiter MOID = 2.5671 au 
 T_jup = 3.533 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457392.5 (2016-Jan-05.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09481604686611821 3.875e-08  
q 2.144988422992465 9.0524e-08 au
tp 2457162.711913453067
(2015-May-20.21191345)
8.8073e-05 TDB
node 158.2026324449438 4.1086e-05 deg
peri 287.3293386420555 4.7496e-05 deg
i 6.093107416593639 3.953e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      675  
   data-arc span      9605 days (26.30 yr)  
   first obs. used      1994-03-06  
   last obs. used      2020-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51637  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:24:58  

Additional Information
 Jupiter MOID = 2.5671 au 
 T_jup = 3.533 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.501560980077983E-15 -3.49066693269428E-15 -9.20130481855458E-13 -1.272794975422476E-14 -2.878005554594503E-13 5.568955995147859E-16
q -3.49066693269428E-15 8.194506758649027E-15 2.341587697033342E-12 3.018386461404255E-14 7.244752758561526E-13 -1.168510369240493E-15
tp -9.20130481855458E-13 2.341587697033342E-12 7.756889007992698E-9 8.273375487142157E-12 2.117943003208903E-9 -2.636898951750603E-12
node -1.272794975422476E-14 3.018386461404255E-14 8.273375487142157E-12 1.688048100475668E-9 -1.675715308284336E-9 5.378774643319531E-11
peri -2.878005554594503E-13 7.244752758561526E-13 2.117943003208903E-9 -1.675715308284336E-9 2.255876020232217E-9 -5.422403150129656E-11
i 5.568955995147859E-16 -1.168510369240493E-15 -2.636898951750603E-12 5.378774643319531E-11 -5.422403150129656E-11 1.562608796262906E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO412656  
rotation period rot_per 33.9508 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

78941 (2003 SN169)          Discovered 2003-Sep-23 by NEAT at Haleakala
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2003 SN169 = 1998 HD4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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