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48931 (1998 PM1)
Classification: Main-belt Asteroid          SPK-ID: 2048931
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2550785497382826 4.8391e-08  
a 2.360498233048287 6.9972e-09 au
q 1.758385767102551 1.138e-07 au
i 5.298987141550048 4.9449e-06 deg
node .8265070905938885 3.4537e-05 deg
peri 337.1126821556295 3.5313e-05 deg
M 348.4008221024244 7.7574e-06 deg
tp 2459043.180417094061
(2020-Jul-12.68041709)
2.8557e-05 TDB
period 1324.658548178091
3.63
5.89e-06
1.613e-08
d
yr
n .2717681477201328 1.2084e-09 deg/d
Q 2.962610698994023 8.782e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1165  
   data-arc span      8134 days (22.27 yr)  
   first obs. used      1998-08-10  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48238  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:27:09  

Additional Information
 Earth MOID = .751027 au 
 Jupiter MOID = 2.43659 au 
 T_jup = 3.501 
[ show covariance matrix ]

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 15.3   n/a MPO280003  

48931 (1998 PM1)          Discovered 1998-Aug-10 by Broughton, J. at Reedy Creek
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ 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
1935-Dec-24 04:04 < 00:01 Amphi 0.0350326578044198 0.0350294926338844 0.0350358248391085 4.64985281077731 4.64985277548657 2428160.669700413 0.380076141845095 450.802832394142 47.3297808130398 -70.3744276209914 104328.843594223 T 23 CATAB v2.0f-lin.ifort 2020-Dec-17 21:27:11 2020-Dec-17 21:27
1995-Dec-01 06:34 < 00:01 Amphi 0.0354751979547678 0.0354742395416423 0.0354761563758728 4.56984111533469 4.56984107987401 2450052.773441619 0.292714711896091 104.334642356202 45.7790483319143 81.6186461223016 114881.08899725 T 23 CATAB v2.0f-lin.ifort 2020-Dec-17 21:27:11 2020-Dec-17 21:27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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