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(1991 BA)
Classification: Apollo [NEO]          SPK-ID: 3092104
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2448274.5 (1991-Jan-18.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6730255187774782 0.013137  
a 2.187712584934572 0.076718 AU
q .715326187522964 0.003656 AU
i 1.937552667474082 0.030974 deg
node 118.8801160920187 0.003681 deg
peri 70.68681139191696 0.077765 deg
M 346.8238259635375 0.77975 deg
tp 2448317.758419341704
(1991-Mar-02.25841934)		 0.28452 JED
period 1181.908414378718
3.24		 62.17
0.1702		 d
yr
n .3045921288150212 0.016022 deg/d
Q 3.660098982346181 0.12835 AU
   Orbit Determination Parameters
   # obs. used (total)      7  
   first obs. used      1991-01-18  
   last obs. used      1991-01-18  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      9  
   fit RMS      .25542  
   data source      ORB  
   producer      Otto Matic  
   solution date      2011-Sep-14 19:31:49  

Additional Information
 Earth MOID = .000342446 AU 
 T_jup = 3.337 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 28.667 mag 0. 9 autocmod 2.5a

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)		 Body Nominal Distance (AU) Minimum Distance (AU) Maximum Distance (AU) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1991-Jan-18 17:18 < 00:01 Earth 0.0011241578134295 0.00106668328179137 0.00118275512189518 17.8839137578145 17.7508864696442 2448275.221281165 0.248946967320936 3166.08962593247 7.98993075857077 -2.33438230458287 44.4467532699643 T 9 CATAB v2.0c-linF95 2011-Sep-15 08:31:51 2011-Sep-15 12:53
1991-Jan-18 21:39 00:04 Moon 0.00283099529179047 0.0027775635726621 0.00288492102190819 18.5193648136644 18.5187396972357 2448275.402543430 4.57030076435649 2874.88325881122 15.1696331530026 -15.1614966509541 7129.45120743596 T 9 CATAB v2.0c-linF95 2011-Sep-15 08:31:51 2011-Sep-15 12:53
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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