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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1397365333157921 6.2016e-08  
a 1.910021781898179 7.5498e-09 AU
q 1.643121959538076 1.2008e-07 AU
i 23.14874057748285 9.305e-06 deg
node 170.5237866574184 1.3759e-05 deg
peri 265.1129319176772 3.6394e-05 deg
M 338.789651521829 3.3829e-05 deg
tp 2457057.306915673160
(2015-Feb-03.80691567)
9.0628e-05 JED
period 964.175089503339
2.64
5.7167e-06
1.565e-08
d
yr
n .373376167792762 2.2138e-09 deg/d
Q 2.176921604258283 8.6048e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      789  
   data-arc span      8913 days (24.40 yr)  
   first obs. used      1990-08-16  
   last obs. used      2015-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51541  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:20:39  

Additional Information
 Earth MOID = .780666 AU 
 T_jup = 3.827 
[ 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 14.3 mag n/a MPO324379  
rotation period rot_per 5.924 h n/a LCDB (Rev. 2015-Feb); 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.]

7660 (1993 VM1)          Discovered 1993-Nov-05 by McNaught, R. H. at Siding Spring (413)
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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