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7660 (1993 VM1)
Classification: Mars-crossing Asteroid          SPK-ID: 2007660
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1400444931171215 6.1942e-08  
a 1.909940483983718 7.0654e-09 au
q 1.642463837020349 1.1997e-07 au
i 23.15141340134808 8.4291e-06 deg
node 170.5201620007758 1.3428e-05 deg
peri 265.0395537038597 3.2979e-05 deg
M 202.8748771547461 3.1383e-05 deg
tp 2458021.295714149039
(2017-Sep-24.79571415)
8.4547e-05 JED
period 964.1135316269377
2.64
5.3498e-06
1.465e-08
d
yr
n .3734000075618703 2.072e-09 deg/d
Q 2.177417130947088 8.0548e-09 au
  Orbit Determination Parameters
   # obs. used (total)      824  
   data-arc span      9372 days (25.66 yr)  
   first obs. used      1990-08-16  
   last obs. used      2016-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52536  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:59:52  

Additional Information
 Earth MOID = .778898 au 
 Jupiter MOID = 3.10529 au 
 T_jup = 3.828 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO347587  
rotation period rot_per 5.924 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2005) http://www.asu.cas.cz/~ppravec/neo.htm]
[Warner, B.D (2012) Minor Planet Bul. 39, 16-21.]
[Stephens, R.D.; Coley, D.; Warner, B.D. (2014) Minor Planet Bul. 41, 8-13.]
[Warner, B.D. (2015) Minor Planet Bul. 42, 54-60.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2015) Astron. Astrophys. 586, A108.]

7660 (1993 VM1)          Discovered 1993-Nov-05 by McNaught, R. H. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1993 VM1 = 1990 QC 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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