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91425 (1999 PM2)
Classification: Main-belt Asteroid          SPK-ID: 2091425
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08779249259639549 3.515e-08  
a 2.84435001201248 1.665e-08 au
q 2.594637434641317 1.0151e-07 au
i 1.058048816778305 3.9262e-06 deg
node 328.8644065222452 0.00021655 deg
peri 36.80401303051782 0.00021774 deg
M 97.2006037181839 2.2875e-05 deg
tp 2458527.414709615371
(2019-Feb-12.91470962)
0.0001113 TDB
period 1752.156859357091
4.80
1.5384e-05
4.212e-08
d
yr
n .2054610567983581 1.804e-09 deg/d
Q 3.094062589383643 1.8111e-08 au
  Orbit Determination Parameters
   # obs. used (total)      908  
   data-arc span      7547 days (20.66 yr)  
   first obs. used      1999-08-07  
   last obs. used      2020-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5471  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:39:56  

Additional Information
 Earth MOID = 1.59278 au 
 Jupiter MOID = 2.33846 au 
 T_jup = 3.302 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456849.5 (2014-Jul-11.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08716501437172482 3.5145e-08  
q 2.595343319299307 1.0126e-07 au
tp 2456763.365729237017
(2014-Apr-15.86572924)
0.00011329 TDB
node 329.171580383475 0.00021489 deg
peri 34.18461917569982 0.00021615 deg
i 1.064726389611262 3.9324e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      908  
   data-arc span      7547 days (20.66 yr)  
   first obs. used      1999-08-07  
   last obs. used      2020-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5471  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:39:56  

Additional Information
 Jupiter MOID = 2.33846 au 
 T_jup = 3.302 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.235177352521313E-15 -3.51918804391789E-15 5.783362787994771E-14 -8.638952233681941E-15 -5.977995183342512E-16 -6.054219827688234E-17
q -3.51918804391789E-15 1.025399343374102E-14 -3.591036006202059E-13 2.160286962918307E-14 -3.330207316377175E-14 2.472236451430682E-16
tp 5.783362787994771E-14 -3.591036006202059E-13 1.283452413688734E-8 -6.249619708018719E-12 2.656142301206229E-9 -4.170632754482916E-13
node -8.638952233681941E-15 2.160286962918307E-14 -6.249619708018719E-12 4.617800377287725E-8 -4.617060318270865E-8 -3.604197398056784E-11
peri -5.977995183342512E-16 -3.330207316377175E-14 2.656142301206229E-9 -4.617060318270865E-8 4.671877675577391E-8 3.59468948972203E-11
i -6.054219827688234E-17 2.472236451430682E-16 -4.170632754482916E-13 -3.604197398056784E-11 3.59468948972203E-11 1.546414566382789E-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 15.0   n/a MPO449561  
diameter diameter 3.082 km 0.655 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.186   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91425 (1999 PM2)          Discovered 1999-Aug-07 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ 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
1946-Jan-03 00:25 00:02 Ceres 0.00893256385095923 0.00893004453657315 0.00893510746546113 4.41010827435861 4.41009755011149 2431823.517044889 1.55227385955133 799.796118882129 48.0026325703233 -81.6518025941828 27347.2819997532 T 25 CATAB v2.0f-lin.ifort 2020-Nov-12 20:39:58 2020-Nov-12 20:39
2061-Feb-04 20:45 00:01 Ceres 0.0492107994905222 0.0492005450607455 0.0492210553154183 4.56548572910856 4.5654838487341 2473860.364824519 1.13729735178902 655.049482435577 49.2183167502848 -39.2084993943045 94341.9687537504 T 25 CATAB v2.0f-lin.ifort 2020-Nov-12 20:39:58 2020-Nov-12 20:39
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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