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7880 (1992 OM7)
Classification: Main-belt Asteroid          SPK-ID: 2007880
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04461183285461136 5.5247e-08  
a 2.78311429429956 2.3804e-08 AU
q 2.658954464586988 1.585e-07 AU
i 3.269186792492394 5.8866e-06 deg
node 292.2039278683206 9.7375e-05 deg
peri 5.958527447118165 0.00011832 deg
M 291.9146853492365 6.7788e-05 deg
tp 2457321.234692173655
(2015-Oct-25.73469217)
0.00032047 JED
period 1695.87949728629
4.64
2.1758e-05
5.957e-08
d
yr
n .2122792336224739 2.7235e-09 deg/d
Q 2.907274124012132 2.4866e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1109  
   data-arc span      14518 days (39.75 yr)  
   first obs. used      1974-09-19  
   last obs. used      2014-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53191  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:11:36  

Additional Information
 Earth MOID = 1.6443 AU 
 T_jup = 3.328 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9 mag n/a MPO256922  
diameter diameter 17.66 km 1.5 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
geometric albedo albedo 0.0430   0.008 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2

7880 (1992 OM7)          Discovered 1992-Jul-19 by Debehogne, H., Lopez G., A. at La Silla (809)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1992 OM7 = 1974 SN = 1977 FK2 = 1979 SV10 = 1995 AL1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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