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48454 (1991 PP12)
Classification: Main-belt Asteroid          SPK-ID: 2048454
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2423450344693152 5.0494e-08  
a 2.342369433097323 1.1732e-08 au
q 1.774707832093482 1.2399e-07 au
i 1.862149597850394 5.2479e-06 deg
node 309.6952652070042 0.00013423 deg
peri 71.06636192760404 0.00013476 deg
M 229.189000141244 1.4996e-05 deg
tp 2459076.298731017129
(2020-Aug-14.79873102)
5.7221e-05 TDB
period 1309.427673139991
3.59
9.8373e-06
2.693e-08
d
yr
n .2749292743574944 2.0655e-09 deg/d
Q 2.910031034101165 1.4575e-08 au
  Orbit Determination Parameters
   # obs. used (total)      824  
   data-arc span      10139 days (27.76 yr)  
   first obs. used      1991-08-05  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59569  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:38:25  

Additional Information
 Earth MOID = .777711 au 
 Jupiter MOID = 2.55484 au 
 T_jup = 3.523 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456239.5 (2012-Nov-08.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .242262365322565 5.0437e-08  
q 1.774356640066198 1.237e-07 au
tp 2456459.735590383712
(2013-Jun-16.23559038)
4.4368e-05 TDB
node 309.7895253720496 0.00013422 deg
peri 71.18488394956857 0.00013475 deg
i 1.862506984631812 5.2474e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      824  
   data-arc span      10139 days (27.76 yr)  
   first obs. used      1991-08-05  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59569  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:38:25  

Additional Information
 Jupiter MOID = 2.55484 au 
 T_jup = 3.523 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.543883566795909E-15 -6.228975196417008E-15 -1.133404331318318E-12 2.634441403371949E-14 -3.090466775989179E-13 -4.423510638482639E-16
q -6.228975196417008E-15 1.530158596090687E-14 2.854894904028297E-12 -6.732499184155014E-14 7.755967347175105E-13 1.182697984469099E-15
tp -1.133404331318318E-12 2.854894904028297E-12 1.968529814447432E-9 -2.966414968211565E-11 5.475380621636254E-10 3.722283488252504E-13
node 2.634441403371949E-14 -6.732499184155014E-14 -2.966414968211565E-11 1.801583527888784E-8 -1.80131425464603E-8 1.438841227237576E-10
peri -3.090466775989179E-13 7.755967347175105E-13 5.475380621636254E-10 -1.80131425464603E-8 1.815884776250769E-8 -1.437306794324708E-10
i -4.423510638482639E-16 1.182697984469099E-15 3.722283488252504E-13 1.438841227237576E-10 -1.437306794324708E-10 2.753559739251494E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO436121  

48454 (1991 PP12)          Discovered 1991-Aug-05 by Holt, H. E. at Palomar
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PP12 = 1998 MO47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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