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JPL Small-Body Database Browser
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370 Modestia (A893 NB)
Classification: Main-belt Asteroid          SPK-ID: 2000370
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09157579848334058 3.7203e-08  
a 2.32404356530563 6.6616e-09 au
q 2.111217420102697 8.6107e-08 au
i 7.865781147871621 4.6241e-06 deg
node 290.9165841240306 2.7455e-05 deg
peri 68.63820760221124 3.6839e-05 deg
M 238.7814829080375 2.5089e-05 deg
tp 2459436.243874010867
(2021-Aug-09.74387401)
9.0634e-05 TDB
period 1294.091021794174
3.54
5.5641e-06
1.523e-08
d
yr
n .278187541631255 1.1961e-09 deg/d
Q 2.536869710508562 7.2717e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2524  
   data-arc span      42126 days (115.33 yr)  
   first obs. used      1904-10-03  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40471  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:25:45  

Additional Information
 Earth MOID = 1.12108 au 
 Jupiter MOID = 2.83447 au 
 T_jup = 3.557 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.7   n/a MPO473766  
diameter diameter 38.093 km 0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 22.5299 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2011) Minor Planet Bull. 38, 23-24.]
geometric albedo albedo 0.065   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.709   0.043 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=7.07, mean=7.19, max.=7.31) deg.
U-B UB 0.289   0.064 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=7.07, mean=7.19, max.=7.31) deg.
Tholen spectral type spec_T X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

370 Modestia (A893 NB)          Discovered 1893-Jul-14 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A893 NB = 1925 RM = 1949 JD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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