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2174 Asmodeus (1975 TA)
Classification: Main-belt Asteroid          SPK-ID: 2002174
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2675337944361084 1.8601e-08  
a 2.539780703330782 8.2664e-09 au
q 1.86030353473309 4.6439e-08 au
i 8.056698250433804 1.0513e-06 deg
node 359.8409560626252 7.2215e-06 deg
peri 5.693536245981336 7.2269e-06 deg
M 74.45520729790559 4.466e-06 deg
tp 2458894.736717529996
(2020-Feb-15.23671753)
1.7654e-05 TDB
period 1478.402729425991
4.05
7.2178e-06
1.976e-08
d
yr
n .2435060439449909 1.1888e-09 deg/d
Q 3.219257871928475 1.0478e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2166  
   data-arc span      24812 days (67.93 yr)  
   first obs. used      1953-04-15  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45088  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:02:01  

Additional Information
 Earth MOID = .857147 au 
 Jupiter MOID = 2.2448 au 
 T_jup = 3.382 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457154.5 (2015-May-12.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2698747284205885 1.8696e-08  
q 1.852958951034644 4.6777e-08 au
tp 2457416.615394117649
(2016-Jan-29.11539412)
1.5593e-05 TDB
node 359.9755736669457 7.2081e-06 deg
peri 5.498136913740841 7.1868e-06 deg
i 8.073400810014041 1.0527e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2166  
   data-arc span      24812 days (67.93 yr)  
   first obs. used      1953-04-15  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45088  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:02:01  

Additional Information
 Jupiter MOID = 2.2448 au 
 T_jup = 3.382 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.495401535505505E-16 -8.675578125646547E-16 -6.892433558560175E-14 7.48400487588264E-15 5.140116266729516E-15 1.580745530385471E-15
q -8.675578125646547E-16 2.188116012250599E-15 1.771503012029517E-13 -1.693450123169E-14 -1.434903864254542E-14 -4.015508011069497E-15
tp -6.892433558560175E-14 1.771503012029517E-13 2.431322896518077E-10 3.661721744688265E-11 2.822118238728533E-11 -1.279692531605015E-12
node 7.48400487588264E-15 -1.693450123169E-14 3.661721744688265E-11 5.19560474340548E-11 -4.113745357830569E-11 -1.084973196988517E-12
peri 5.140116266729516E-15 -1.434903864254542E-14 2.822118238728533E-11 -4.113745357830569E-11 5.16507155857962E-11 5.930020501548072E-13
i 1.580745530385471E-15 -4.015508011069497E-15 -1.279692531605015E-12 -1.084973196988517E-12 5.930020501548072E-13 1.108212659064978E-12

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.78   n/a MPCxxxxx  
diameter diameter 5.161 km 0.388 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 41.0488 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.]
geometric albedo albedo 0.220   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2174 Asmodeus           Discovered 1975 Oct. 8 by S. J. Bus and J. P. Huchra at Palomar.
Named for the Babylonian god of lust.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5039Last Updated: 2006-03-21

Alternate Designations
 1975 TA = 1979 SK12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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