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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2415592277287199 4.8324e-08  
a 2.341693377680979 1.1607e-08 au
q 1.776035733790905 1.1904e-07 au
i 1.863569115724042 4.2149e-06 deg
node 309.6412830381598 0.00012801 deg
peri 71.17498674847603 0.00012845 deg
M 339.0373323747695 1.5141e-05 deg
tp 2459076.714484438932
(2020-Aug-15.21448444)
5.5497e-05 TDB
period 1308.860822894134
3.58
9.7315e-06
2.664e-08
d
yr
n .275048342576236 2.045e-09 deg/d
Q 2.907351021571054 1.4411e-08 au
  Orbit Determination Parameters
   # obs. used (total)      871  
   data-arc span      10220 days (27.98 yr)  
   first obs. used      1991-08-05  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58771  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:06:59  

Additional Information
 Earth MOID = .779817 au 
 Jupiter MOID = 2.56038 au 
 T_jup = 3.523 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456670.5 (2014-Jan-13.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2425266337126428 4.8318e-08  
q 1.774243096640535 1.1904e-07 au
tp 2456459.879078609851
(2013-Jun-16.37907861)
4.1581e-05 TDB
node 309.7819540891554 0.00012816 deg
peri 71.24854007302042 0.00012859 deg
i 1.862756493641681 4.2123e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      871  
   data-arc span      10220 days (27.98 yr)  
   first obs. used      1991-08-05  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58771  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:06:59  

Additional Information
 Jupiter MOID = 2.56038 au 
 T_jup = 3.523 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.334652681026073E-15 -5.743213179673369E-15 -9.221082998268434E-13 2.757953716419668E-14 -2.334717743862092E-13 -3.147385163220426E-16
q -5.743213179673369E-15 1.417163439550816E-14 2.36623416806294E-12 -7.040840558377607E-14 6.006244957911392E-13 8.778017791434374E-16
tp -9.221082998268434E-13 2.36623416806294E-12 1.728966423972297E-9 -2.616240553979278E-11 4.592274340022069E-10 6.01522577195608E-13
node 2.757953716419668E-14 -7.040840558377607E-14 -2.616240553979278E-11 1.642395314601925E-8 -1.642115263079762E-8 2.160687962884019E-11
peri -2.334717743862092E-13 6.006244957911392E-13 4.592274340022069E-10 -1.642115263079762E-8 1.653646215080051E-8 -2.145893664824178E-11
i -3.147385163220426E-16 8.778017791434374E-16 6.01522577195608E-13 2.160687962884019E-11 -2.145893664824178E-11 1.774343188257578E-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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