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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1397557190964779 6.4763e-08  
a 1.91021156060382 1.1986e-08 AU
q 1.643248570325228 1.2422e-07 AU
i 23.14780175970883 1.06e-05 deg
node 170.5238412964609 1.6275e-05 deg
peri 265.0719566903492 4.3536e-05 deg
M 264.1586595216626 4.561e-05 deg
tp 2457057.226682673697
(2015-Feb-03.72668267)
0.00012338 JED
period 964.3187929265287
2.64
9.0763e-06
2.485e-08
d
yr
n .3733205270297251 3.5137e-09 deg/d
Q 2.177174550882412 1.3661e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      676  
   data-arc span      8302 days (22.73 yr)  
   first obs. used      1990-08-16  
   last obs. used      2013-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53379  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 15:46:10  

Additional Information
 Earth MOID = .779622 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 MPO263417  
rotation period rot_per 5.916 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Incomplete or inconclusive result.
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.]

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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