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102 Miriam (A868 QA)
Classification: Main-belt Asteroid          SPK-ID: 2000102
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 89 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2511058600544399 2.8652e-08  
a 2.662333499312872 6.1679e-09 au
q 1.993805956216167 7.4386e-08 au
i 5.172851984012975 3.1236e-06 deg
node 210.7978713637729 3.5665e-05 deg
peri 147.0245829426713 3.6419e-05 deg
M 341.9682114384904 8.9756e-06 deg
tp 2459079.974612218689
(2020-Aug-18.47461222)
3.9753e-05 TDB
period 1586.690100160146
4.34
5.5139e-06
1.51e-08
d
yr
n .2268874054005032 7.8845e-10 deg/d
Q 3.330861042409577 7.7166e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2949  
   data-arc span      54975 days (150.51 yr)  
   first obs. used      1870-01-28  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44181  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:09:49  

Additional Information
 Earth MOID = .992653 au 
 Jupiter MOID = 2.14353 au 
 T_jup = 3.334 
[ 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 9.3   n/a MPO492749 IRAS observations used: 14
diameter diameter 82.595 km 0.400 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 23.613 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2008) Minor Planet Bull. 35, 71-72.]
[Pilcher, F. (2013) Minor Planet Bull. 40, 158-160.]
geometric albedo albedo 0.051   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.726   0.028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=7.86, mean=14.79, max.=27.13) deg.
U-B UB 0.371   0.070 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=7.86, mean=14.79, max.=27.13) deg.
Tholen spectral type spec_T P   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

102 Miriam (A868 QA)          Discovered 1868-Aug-22 by Peters, C. H. F. at Clinton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A868 QA = 1944 FC = 1972 PC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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