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JPL Small-Body Database Browser
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966 Muschi (A921 VD)
Classification: Main-belt Asteroid          SPK-ID: 2000966
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1312830382028868 4.4888e-08  
a 2.717450836009641 1.08e-08 au
q 2.360695634091321 1.2337e-07 au
i 14.41587750160678 4.9655e-06 deg
node 72.41206362497189 1.6596e-05 deg
peri 177.8630488363877 2.3315e-05 deg
M 76.08733237758096 1.8426e-05 deg
tp 2458254.679425852958
8.3036e-05 TDB
period 1636.217262488988
n .22001968091473 1.3117e-09 deg/d
Q 3.074206037927962 1.2218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2289  
   data-arc span      35215 days (96.41 yr)  
   first obs. used      1923-03-19  
   last obs. used      2019-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44821  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:13:48  

Additional Information
 Earth MOID = 1.34632 au 
 Jupiter MOID = 1.96766 au 
 T_jup = 3.303 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.91   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 5
diameter diameter 25.509 km 0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 5.355 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2004) Minor Planet Bull. 31, 60-61.]
[Behrend, R. (2009) Observatoire de Geneve web site,]
[Durech, J.; Kaasalainen, M.; Warner, B.D.; Fauerbach, M.; et al. (2009) Astron. Astrophys. 493, 291-297.]
[Klinglesmith III, D.A.; Hanowell, J.; Risely, E.; Turk, J.; et al. (2013) Minor Planet Bull. 40, 190-193.]
geometric albedo albedo 0.323   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
B-V BV 0.867   0.012 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=9.41, mean=12.90, max.=15.99) deg.
U-B UB 0.441   0.029 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=9.41, mean=13.79, max.=15.99) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

966 Muschi (A921 VD)          Discovered 1921-Nov-09 by Baade, W. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2019-Oct-18 00:12 UT
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